Drying equipment

Abstract

The utility model relates to the technical field of clothes processing equipment, in particular to drying equipment, and aims to solve the problems that when clothes with more thread scraps are dried by the existing drying equipment, the thread scraps block an air duct, so that air flow circulation is not smooth, and the drying efficiency is seriously influenced. In order to achieve the purpose, the drying equipment comprises a barrel module, a barrel module, a heat exchanger, a heat exchanger and a heat exchanger, wherein the barrel module is provided with an air inlet and an air outlet; the two ends of the drying air duct communicate with the air inlet and the air outlet correspondingly; and the first filter screen is arranged at the air inlet end of the drying air duct or in the air outlet. The first filter screen is installed at the air inlet end of the drying air channel or in the air outlet of the cylinder module, so that thread scraps entering the drying air channel can be reduced, airflow can smoothly flow in the drying air channel, and drying efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of clothing processing equipment, and specifically provides a drying equipment. Background Art

[0002] Drying equipment refers to a machine that can use hot air to dry clothes. Drying equipment mainly includes washing and drying machines, clothes dryers or drying machines.

[0003] Taking the washer-dryer as an example, the heating methods of the existing washer-dryers on the market are mostly electric heating or heat pump heating. No matter which heating method is chosen, the circulating air duct during the drying process is indispensable. During the drying process, the lint on the clothes will fall off, be carried by the fan and attached to the entire air duct.

[0004] To avoid the above situation, many integrated washing and drying machines choose to install a filter device in the drying air duct to filter out lint. However, when drying woolen clothes with a lot of lint, a large amount of lint will enter the air duct at the same time, causing poor air flow and seriously affecting the drying efficiency.

[0005] Therefore, this field needs a new technical solution to solve the above problems. Utility Model Content

[0006] The utility model aims to solve the above technical problem, that is, to solve the problem that when the existing drying equipment dries clothes with a lot of lint, the lint will block the air duct, resulting in poor air circulation and seriously affecting the drying efficiency.

[0007] In a first aspect, the utility model provides a drying device, comprising:

[0008] A barrel module, wherein the barrel module is provided with an air inlet and an air outlet;

[0009] a drying air duct, wherein both ends of the drying air duct are respectively connected to the air inlet and the air outlet; and

[0010] A first filter screen is arranged at the air inlet end of the drying air duct or in the air outlet.

[0011] In a preferred technical solution of the above drying equipment, the filter surface of the first filter screen is a flat surface or is raised toward the downstream of the first filter screen.

[0012] In a preferred technical solution of the above-mentioned drying equipment, the drying equipment also includes a second filter screen, which is arranged in the drying air duct and downstream of the first filter screen, and the mesh number of the second filter screen is greater than the mesh number of the first filter screen.

[0013] In a preferred technical solution of the above-mentioned drying equipment, the drying equipment also includes a third filter screen, which is arranged in the drying air duct and downstream of the second filter screen, and the mesh number of the third filter screen is greater than the mesh number of the second filter screen.

[0014] In a preferred technical solution of the above-mentioned drying equipment, the drying equipment further comprises an annular first filter frame, the first filter frame is detachably fixedly connected to the drying air duct or the drum module, and the first filter is arranged on the first filter frame.

[0015] In a preferred technical solution of the above drying equipment, support ribs are provided on the first filter frame at the position where the first filter is set.

[0016] In a preferred technical solution of the above drying equipment, a protruding structure extending along the axial direction of the first filter frame is provided on the supporting rib.

[0017] In a preferred technical solution of the above drying device, the drying device further includes a first flushing mechanism, and the first flushing mechanism is capable of flushing the first filter screen.

[0018] In the preferred technical solution of the above-mentioned drying equipment, the first flushing mechanism includes a spray pipe, the spray pipe has a water inlet and a water spray outlet, the spray pipe is installed on the drying air duct, and the water spray outlet is located in the drying air duct and faces the first filter.

[0019] In the preferred technical scheme of the above-mentioned drying equipment, the drying air duct includes a first drying air duct and a second drying air duct located above the drum module, and the drying equipment also includes a heat pump module, the heat pump module includes an evaporator and a condenser, the first drying air duct and the second drying air duct are respectively connected to the suction port and the exhaust port of the fan of the drying equipment, the first drying air duct and the second drying air duct are arranged in an L shape, the evaporator is arranged in the first drying air duct, the condenser is arranged in the second drying air duct, the first drying air duct is connected to the air outlet, and the second drying air duct is connected to the air inlet.

[0020] When adopting the above technical solution, the utility model installs a first filter at the air inlet end of the drying duct or the air outlet of the drum module, which is helpful to reduce the lint entering the drying duct, thereby allowing the airflow to flow smoothly in the drying duct and improving the drying efficiency.

[0021] Furthermore, the utility model helps to avoid the accumulation of wire scraps at the downstream of the first filter by making the filter surface of the first filter a flat surface or protruding toward the downstream of the first filter, thereby helping to reduce the impact on the flow of airflow.

[0022] Furthermore, the utility model installs a second filter in the drying air duct and makes the mesh number of the second filter larger than the mesh number of the first filter. Therefore, the lint that passes through the first filter and enters the drying air duct can be intercepted by the second filter with higher filtering accuracy, thereby further improving the filtering effect.

[0023] Furthermore, the utility model installs a third filter downstream of the second filter, and makes the mesh number of the third filter larger than the mesh number of the second filter. Therefore, the wire scraps passing through the second filter can be intercepted by the third filter with higher filtering accuracy, thereby further improving the filtering effect.

[0024] Furthermore, the utility model installs the first filter on the first filter frame, and makes the first filter frame detachably installed on the drying air duct or the drum module, so that the first filter can be easily removed for cleaning, maintenance or replacement.

[0025] Furthermore, the utility model provides support ribs on the first filter frame, which helps to improve the flatness of the first filter.

[0026] Furthermore, the utility model provides a protruding structure on the supporting ribs, thereby facilitating installation and disassembly of the first filter frame.

[0027] Furthermore, the utility model provides a first flushing mechanism to flush the first filter screen, so as to facilitate timely cleaning of the wire scraps on the first filter screen, thereby ensuring smooth airflow. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings, in which:

[0029] Figure 1 This is a schematic diagram of the overall structure of the integrated washer-dryer of the present invention; (the top plate of the box is omitted)

[0030] Figure 2 This is a schematic diagram of the structure of the heat pump system in the washing and drying machine of the utility model. Figure 1 ;

[0031] Figure 3 This is a schematic diagram of the structure of the heat pump system in the utility model of the washer-dryer Figure 2 ;

[0032] Figure 4 It is a schematic diagram of the structure of the housing and the second bracket of the filter device in the integrated washer-dryer of the utility model;

[0033] Figure 5 It is a schematic diagram of the assembly of the first bracket, the second bracket and the locking pin of the filter device in the washer-dryer of the utility model;

[0034] Figure 6It is a structural schematic diagram of the second bracket and the locking pin in the washer-dryer of the utility model;

[0035] Figure 7 It is a structural schematic diagram of a locking pin of a filter device in a washer-dryer of the utility model;

[0036] Figure 8 It is a structural schematic diagram of the third filter frame of the filtering device in the integrated washer-dryer of the utility model;

[0037] Fig. 9 It is a structural schematic diagram of a second filter frame of a filtering device in a washer-dryer of the utility model;

[0038] Fig.10 It is a structural schematic diagram of a first filter frame of a filtering device in a washer-dryer of the utility model;

[0039] Fig.11 It is a structural schematic diagram of the first drying air duct and the second flushing mechanism in the integrated washer-dryer of the utility model;

[0040] Fig.12 yes Fig.11 Sectional view at AA in the middle;

[0041] Fig.13 yes Fig.12 The enlarged view of point B in the middle;

[0042] Fig.14 The utility model is a schematic diagram of the structure of the spray pipe in the integrated washer-dryer.

[0043] List of reference numerals:

[0044] 1. Box body; 11. Second plug interface;

[0045] 2. Cylinder module;

[0046] 31. first drying air duct; 311. return air duct; 312. first heat exchange air duct; 313. first connecting air duct; 3121. first plug interface; 3122. fresh air inlet;

[0047] 32. Fan;

[0048] 33. Second drying air duct; 331. Second heat exchange air duct; 332. Air outlet air duct; 333. Second connecting air duct; 3321. Fresh air outlet; 3331. Guide structure;

[0049] 34. Evaporator; 35. Condenser;

[0050] 4. Filter device; 41. First bracket; 42. Second bracket; 43. Housing; 44. Lock pin; 46. First filter screen; 47. First filter screen frame; 441. First locking structure; 421. Third filter screen frame; 422. Second filter screen frame; 4211. Cylindrical structure; 4212. First connecting structure; 4213. Strip convex rib; 4221. Second locking structure; 4222. Second connecting structure; 4223. Arc surface; 4224. Accommodating cavity; 471. Support rib; 472. Protruding structure;

[0051] 51. First water spray chamber; 52. Second water spray chamber; 53. First flushing filter channel; 54. Second flushing filter channel; 55. Evaporator flushing channel; 56. First water inlet joint; 57. Second water inlet joint; 58. Partition structure;

[0052] 6. Sprinkler pipe; 61. Water inlet; 62. Water outlet. DETAILED DESCRIPTION

[0053] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present invention and are not used to limit the scope of protection of the present invention. Those skilled in the art can make adjustments as needed to adapt to specific applications. For example, although the following content is described in conjunction with a washer-dryer, the technical solution of the present invention is also applicable to other types of drying equipment, such as heat pump dryers, etc. Such adjustments and changes to the application objects do not deviate from the principles and scope of the present invention and should be limited within the scope of protection of the present invention.

[0054] It should be noted that in the description of the present invention, the terms "upper", "lower", "front", "rear", "longitudinal", "lateral", "top", "bottom" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the relevant devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, ordinal numbers "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0055] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "setting" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0056] Reference Figures 1 to 14 , a specific preferred implementation manner of the utility model is described.

[0057] like Figures 1 to 3 As shown, the washer-dryer of the present invention includes a housing 1, a drum module 2 (also referred to as an outer drum or a washing drum) and a drying system arranged in the housing 1. The drying system can supply hot air to the drum module 2 to dry the clothes.

[0058] Preferably, if Figures 1 to 3 As shown, the drying system of the utility model includes a drying air duct, a heat pump module and a fan 32. The drum module is provided with an air inlet and an air outlet. The two ends of the drying air duct are respectively connected to the air inlet and the air outlet. The heat pump module includes an evaporator and a condenser installed in the drying air duct. The evaporator is located upstream of the condenser. Under the action of the fan 32, the airflow can circulate in the drying air duct and the drum module, and exchange heat with the evaporator and the condenser when flowing through the evaporator and the condenser.

[0059] Preferably, if Figures 1 to 3 As shown, the drying air duct of the utility model includes a first drying air duct 31 and a second drying air duct 33. The first drying air duct 31, the fan 32 and the second drying air duct 33 are connected in sequence. The evaporator 34 is arranged in the first drying air duct 31, and the condenser 35 is arranged in the second drying air duct 33. The first drying air duct 31 is connected to the air outlet on the drum module 2, and the second drying air duct 33 is connected to the air inlet on the drum module 2.

[0060] In the present embodiment, the hot and humid air in the drum module 2 circulates under the action of the fan 32, enters the first drying air duct 31, the second drying air duct 33, and the air inlet into the drum module 2 in sequence through the air outlet on the drum module 2, and under the action of the evaporator 34, the moisture in the hot and humid air is condensed and separated from the airflow, and under the action of the condenser 35, the temperature of the air is increased to supply hot air to the drum module 2, thereby drying the clothes in the drum module 2, and then drying the clothes.

[0061] It should be noted that the drying air duct of the present invention is not limited to the two-stage structure described above. Those skilled in the art can also set the drying air duct as a whole-stage structure in actual application. In this case, the fan can be installed on the air outlet or the air inlet, and then the fan is connected to the air inlet or the air outlet through the drying air duct. Of course, the present invention preferably sets the drying air duct as the first drying air duct and the second drying air duct described above, and the fan is set between the first drying air duct and the second drying air duct.

[0062] In addition, it should be noted that those skilled in the art may also replace the heat pump module with an electric heating device, etc. Such flexible adjustments and changes do not deviate from the principle and scope of the present utility model and should be limited within the protection scope of the present utility model.

[0063] Preferably, if Figure 1 As shown, the first drying air duct 31 , the fan 32 and the second drying air duct 33 are all arranged above the drum module 2 .

[0064] Preferably, the heat pump module of the present invention further includes a compressor (not shown in the figure), which is arranged below the cylinder module 2 .

[0065] Exemplarily, the compressor is vertically arranged at the lower left of the barrel module 2. Of course, the compressor can also be horizontally arranged as long as it can be installed in the lower space between the barrel module 2 and the box body 1. The compressor, evaporator 34 and condenser 35 are connected to each other to form a refrigerant circulation loop. The refrigerant exchanges heat with the hot and humid air flowing through the evaporator 34, which can condense the moisture in the hot and humid air and separate it from the airflow. The refrigerant exchanges heat with the air flowing through the condenser 35, which can increase the temperature of the air, thereby supplying hot air to the barrel module 2.

[0066] Preferably, if Figures 1 to 3 As shown, the first drying air duct 31 includes a return air duct 311 and a first heat exchange air duct 312 which are connected. The return air duct 311 and the first heat exchange air duct 312 are arranged at the upper rear of the barrel module 2, that is, close to the rear end of the barrel module 2. The evaporator 34 is arranged in the first heat exchange air duct 312. The air outlet is arranged at the upper rear of the barrel module 2, that is, the air outlet is also arranged close to the rear end of the barrel module 2, so as to facilitate the return air duct 311 to be connected with the air outlet. The first heat exchange air duct 312 extends in the horizontal direction, and the extension direction of the first heat exchange air duct 312 is perpendicular to the axial direction of the barrel module 2.

[0067] The return air duct 311 and the first heat exchange air duct 312 are preferably configured to be detachably fixedly connected.

[0068] Furthermore, if Figures 1 to 3 As shown, the second drying air duct 33 includes a second heat exchange air duct 331 and an air outlet air duct 332 that are connected. The air outlet air duct 332 and the second heat exchange air duct 331 are arranged at the upper left or upper right of the barrel module 2. The condenser 35 is arranged in the second heat exchange air duct 331. The air inlet is arranged at the upper front of the barrel module 2, that is, the air inlet is arranged close to the front end of the barrel module 2, and the air outlet air duct 332 is connected to the air inlet. The second heat exchange air duct 331 also extends in the horizontal direction, and the extension direction of the second heat exchange air duct 331 is parallel to the axial direction of the barrel module 2, that is, the extension direction of the second heat exchange air duct 331 is perpendicular to the extension direction of the first heat exchange air duct 312, and the two heat exchange air ducts are arranged in an approximately L shape.

[0069] The second heat exchange air duct 331 and the air outlet air duct 332 are preferably configured to be detachably fixedly connected.

[0070] This embodiment is aimed at the structural characteristics of the space above the drum module 2 in the box body 1. Specifically, taking a drum-type washer-dryer as an example, a clothes treatment agent delivery box generally needs to be set in the front space of the upper left, and accordingly, there is a certain amount of free space in the upper back and upper right. Therefore, the washer-dryer of this embodiment sets the first drying air duct 31 in the upper back space, the second drying air duct 33 in the upper right, and the fan 32 between the first drying air duct 31 and the second drying air duct 33, located at the upper right corner, according to the characteristics of the internal space of the box body 1. From the perspective of the overall layout, the first drying air duct 31, the fan 32, and the second drying air duct 33 are vertically distributed as a whole, which can maximize the use of free space and ensure that the height of the whole washer-dryer remains unchanged.

[0071] It should be noted that the front end of the drum module 2 has a clothing access port, and those skilled in the art may use the clothing access port as an air inlet, even if the air outlet duct 332 is connected to the clothing access port. Alternatively, a separate air port may be opened above the front end of the drum module 2 as an air inlet. Such adjustments and changes to the specific setting form of the air inlet do not deviate from the principle and scope of the present utility model, and should be limited within the protection scope of the present utility model.

[0072] Furthermore, in order to improve the heat exchange efficiency as much as possible within a limited space and ensure the drying effect, it is necessary to increase the heat exchange body of the evaporator 34 and the condenser 35 as much as possible. Therefore, the first heat exchange duct 312 and the second heat exchange duct 331 have an external contour adapted to the space in which they are located, so that the heat exchange body of the evaporator 34 accommodated in the first heat exchange duct 312 and the heat exchange body of the condenser 35 accommodated in the second heat exchange duct 331 can be increased as much as possible.

[0073] Specifically, Figure 1 and Figure 2As shown, the first heat exchange air duct 312 is arranged at the upper rear of the barrel module 2, approximately at the middle position of the barrel module 2, and because the barrel module 2 is a cylindrical structure, it is approximately in a plane at the middle position of the cylindrical structure, so the first heat exchange air duct 312 is approximately a rectangular structure, that is, the first heat exchange air duct 312 is approximately flat, and the cross section is approximately rectangular. Accordingly, the heat exchange body of the evaporator 34 inside it is arranged in a regular rectangular shape. The second heat exchange air duct 331 is arranged at the upper right of the barrel module 2. In order to adapt to the cylindrical structure of the barrel module 2 and make full use of this part of the space, the second heat exchange air duct 331 is set to a non-rectangular structure, that is, in this part of the space, the second heat exchange air duct 331 is set to a "7"-shaped structure, that is, a structure that is wide at the top and narrow at the bottom, and the surface of the second heat exchange air duct 331 close to the barrel module 2 is set to an inner concave arc surface, and the inner concave arc surface is coaxial with the barrel module 2. Accordingly, the heat exchange body of the condenser 35 inside it is also arranged in a "7"-shaped structure.

[0074] It should be noted that the shapes of the first heat exchange duct 312 and the second heat exchange duct 331 described above and the arrangement shapes of the heat exchange bodies corresponding to the evaporators 34 and condensers 35 respectively arranged therein are only exemplary. Those skilled in the art may also make arrangements in other shapes according to actual conditions. As long as the space between the box body 1 and the barrel module 2 can be fully utilized, the bottom contour of the first heat exchange duct 312 and the second heat exchange duct 331 can match the barrel wall contour of the barrel module 2, and the heat exchange body inside the heat exchange duct can maximize the heat exchange efficiency, the present invention does not impose any restrictions on this.

[0075] Furthermore, the fan 32 is arranged at the upper right corner. In order to make full use of this part of the space, the fan 32 is arranged vertically, and the central axis of the air intake port of the fan 32 (that is, the axis of the impeller of the fan 32) extends horizontally along the transverse direction of the box body 1, that is, perpendicular to the axial direction of the barrel module 2, and the central axis of the air outlet of the fan 32 (the central axis of the air outlet of the fan 32 is perpendicular to the axis of the impeller of the fan 32) extends horizontally along the longitudinal direction of the box body 1, that is, parallel to the axial direction of the barrel module 2. In other words, the extension direction of the central axis of the air intake port of the fan 32 is The extension direction is the same as that of the first heat exchange air duct 312, the extension direction of the central axis of the exhaust port of the fan 32 is the same as that of the second heat exchange air duct 331, the first drying air duct 31 is connected with the air intake port of the fan 32, and the second drying air duct 33 is connected with the exhaust port of the fan 32. In this way, the first drying air duct 31 and the second drying air duct 33 are relatively vertically distributed with the fan 32 as the center, which can maximize the use of the free space between the box body 1 and the drum module 2, so as to further ensure that the overall height size of the washer-dryer remains unchanged.

[0076] In addition, the return air duct 311 and the outlet air duct 332 are also arranged in a manner that can fully utilize the space between the box body 1 and the cylinder module 2. Specifically, Figure 2 and Figure 3 As shown, the return air duct 311 and the outlet air duct 332 are both configured as bent structures, and the surface close to the barrel module 2 is configured as an inner concave arc surface, which is compatible with the barrel wall surface of the barrel module 2. Among them, the return air duct 311 and the outlet air duct 332 are preferably made of flexible materials, such as rubber tubes.

[0077] Furthermore, the return air duct 311, the first heat exchange air duct 312, the fan 32, the second heat exchange air duct 331 and the air outlet duct 332 are all spaced apart from the barrel wall of the barrel module 2 to ensure a safe distance from the barrel module 2, thereby ensuring their respective normal operation.

[0078] Preferably, if Figure 2 and Figure 3 As shown, the first drying air duct 31 of the utility model further includes a first connecting air duct 313, a first end of the first connecting air duct 313 is connected to the first heat exchange air duct 312, and a second end of the first connecting air duct 313 is connected to the air suction port of the fan 32. The caliber of the first connecting air duct 313 gradually narrows from the first end of the first connecting air duct 313 to the second end of the first connecting air duct 313, so that the air can be gathered to the air suction port of the fan 32.

[0079] The extension direction of the first connecting air duct 313 is consistent with the extension direction of the first heat exchange air duct 312. It should be noted that the first connecting air duct 313 and the first heat exchange air duct 312 can be fixedly connected, or can also be integrally arranged.

[0080] Preferably, if Figure 2 and Figure 3 As shown, the second drying air duct 33 of the utility model further includes a second connecting air duct 333, a first end of the second connecting air duct 333 is connected to the exhaust port of the fan 32, and a second end of the second connecting air duct 333 is connected to the second heat exchange air duct 331. The caliber of the second connecting air duct 333 gradually widens from the first end of the second connecting air duct 333 to the second end of the second connecting air duct 333, so that the air flowing out of the exhaust port of the fan 32 can diffuse into the second heat exchange air duct 331.

[0081] The extension direction of the second connecting air duct 333 is consistent with the extension direction of the second heat exchange air duct 331. It should be noted that the second connecting air duct 333 and the second heat exchange air duct 331 can be fixedly connected, or can also be integrally arranged.

[0082] Furthermore, if Figure 3As shown, the drying system of the present invention further includes a flow guiding structure 3331 disposed in the second drying air duct 33 , and the flow guiding structure 3331 is located upstream of the condenser 35 .

[0083] Exemplarily, the guide structure 3331 is arranged in the second connecting air duct 333. The guide structure 3331 has a guiding effect on the air, so that the air flowing out through the exhaust port of the fan 32 can be evenly diffused into the second heat exchange air duct 331, so that the air can flow evenly through the condenser 35, avoiding the air from gathering in a certain area of ​​the condenser 35, realizing uniform heat exchange, and ensuring heat exchange efficiency.

[0084] Preferably, if Figure 3 As shown, the flow guiding structure 3331 is configured as a plate-like structure.

[0085] The guide structure 3331 extends from the air inlet end of the second connecting air duct 333 to the windward end surface of the condenser 35 .

[0086] It should be noted that each flow guiding structure 3331 may be a curved plate-like structure or a straight plate-like structure.

[0087] Preferably, if Figure 3 As shown, a plurality of guide structures 3331 are provided in the second connecting air duct 333. The plurality of guide structures 3331 are spaced apart along a flow direction perpendicular to the airflow. The plurality of guide structures 3331 divide the interior of the second connecting air duct 333 into a plurality of guide channels. The airflow flowing out through the exhaust port of the fan 32 can flow through the heat exchange body of the condenser 35 through each guide channel respectively to perform uniform heat exchange.

[0088] For example, Figure 3 As shown, there are two guide structures 3331 , and the two guide structures 3331 divide the interior of the second connecting air duct 333 into three guide channels.

[0089] Preferably, if Figure 3 As shown, the first drying air duct 31 of the utility model is provided with a fresh air inlet 3122 , and the fresh air inlet 3122 is located between the evaporator 34 and the fan 32 .

[0090] By setting a fresh air inlet 3122 on the first drying air duct 31, external dry fresh air can be introduced during the drying process, which is beneficial to improving the drying efficiency. In addition, by setting the fresh air inlet 3122 between the evaporator 34 and the fan 32, more fresh air can be introduced, and the temperature of the incoming fresh air will not be affected by the temperature of the evaporator 34, which is more beneficial to improving the drying efficiency.

[0091] For example, Figure 3As shown, the fresh air inlet 3122 is disposed on the first connecting air duct 313. Of course, those skilled in the art may also dispose the fresh air inlet 3122 on the first heat exchange air duct 312.

[0092] Preferably, if Figure 3 As shown, a fresh air outlet 3321 is provided on the second drying air duct 33 , and the fresh air outlet 3321 is located downstream of the condenser 35 .

[0093] After washing the clothes, if the user does not take out the clothes in time, the fan 32 can be started without starting the compressor, so that the airflow circulates in the drum module 2 and the drying air duct. Fresh air continuously enters from the fresh air inlet 3122, and part of the airflow will be discharged from the fresh air outlet 3321 to avoid the danger of excessive air pressure in the drum module 2. In addition, by setting the fresh air outlet 3321 downstream of the condenser 35, wind resistance can be reduced and assembly is facilitated.

[0094] Preferably, the washer-dryer of the present invention also includes an exhaust duct (not shown in the figure) and an electric control valve installed on the exhaust duct, one end of the exhaust duct is connected to the fresh air outlet 3321, and the other end of the exhaust duct is connected to the outside of the box 1, and the electric control valve is used to control the on and off state of the exhaust duct.

[0095] By setting an exhaust duct connected to the fresh air outlet 3321, the humid air exhausted from the fresh air outlet 3321 can be directly guided to the outside of the box 1 to avoid excessive humidity inside the box 1. In addition, when there is no need to exhaust air through the fresh air outlet 3321, the electric control valve is in a closed state.

[0096] Preferably, if Figure 1 and Figure 2 As shown, the washer-dryer of the present invention further includes a filter device 4, at least a portion of which is installed in the drying air duct. The filter device 4 is used to filter the airflow in the drying air duct to filter out impurities such as lint carried by the airflow.

[0097] It should be noted that a person skilled in the art may fixedly install the filter device 4 in the drying air duct, or may insert the filter device 4 into the drying air duct by plugging, etc. Such adjustments and changes to the specific setting method of the filter device 4 do not deviate from the principle and scope of the present utility model, and shall be limited within the protection scope of the present utility model.

[0098] Preferably, if Fig.10 As shown, the filtering device of the present invention comprises a first filter screen 46, and the first filter screen 46 is installed in the air inlet end or the air outlet of the drying air duct.

[0099] It should be noted that the first filter 46 can be installed in the air outlet of the drum module, or the first filter 46 can be installed at the air inlet end of the drying air duct, specifically at the air inlet end of the first drying air duct 31, more specifically, at the air inlet end of the return air duct 311.

[0100] Preferably, if Fig.10 As shown, the filter surface of the first filter screen 46 is a flat surface or is convex toward the downstream of the first filter screen 46 .

[0101] The above arrangement can prevent the wire scraps from accumulating at the downstream position of the first filter 46 .

[0102] The filter surface of the first filter screen 46 may be set to be a flat surface, or may be set to be a protrusion toward the downstream of the first filter screen 46, such as an arched surface.

[0103] Preferably, if Fig.10 As shown, the filtering device of the present invention further includes an annular first filter frame 47 , which is detachably and fixedly connected to the drying air duct or the drum module, and the first filter 46 is mounted on the first filter frame 47 .

[0104] By installing the first filter screen 46 on the first filter screen frame 47 and making the first filter screen frame 47 detachably fixedly connected to the drying air duct or the drum module, the first filter screen 46 can be easily removed for cleaning.

[0105] Taking the installation of the first filter frame 47 in the air outlet of the cartridge module as an example, the first filter frame 47 can be directly inserted into the air outlet from the inside or outside of the cartridge module 2, and the shape of the first filter frame 47 matches the shape of the air outlet.

[0106] Preferably, if Fig.10 As shown, a support rib 471 is provided on the first filter frame 47 at the position where the first filter 46 is provided.

[0107] By providing the support ribs 471 at the position where the first filter screen 46 is provided, it is beneficial to improve the flatness of the first filter screen 46 and ensure the filtering effect.

[0108] Preferably, if Fig.10 As shown, a protruding structure 472 extending along the axial direction of the first filter frame 47 is provided on the support rib 471 .

[0109] By providing the protruding structure 472 on the supporting rib 471, it is convenient to install and disassemble the first filter frame 47. Specifically, when installing and disassembling the first filter frame 47, the user can pinch the protruding structure 472 by hand, which is more convenient.

[0110] It should be noted that a person skilled in the art may set the protruding structure 472 to be plate-shaped, columnar, block-shaped, etc. Such adjustment and change to the specific shape of the protruding structure 472 does not deviate from the principle and scope of the present utility model and should be limited within the protection scope of the present utility model.

[0111] Preferably, the filtering device of the present invention further comprises a second filter screen, which is located in the drying air duct and downstream of the first filter screen 46 , and the mesh number of the second filter screen is greater than the mesh number of the first filter screen 46 .

[0112] That is, the first filter screen 46 is located upstream of the second filter screen, and the airflow from the cartridge module 2 flows through the first filter screen 46 and the second filter screen in sequence, and the mesh sizes of the first filter screen 46 and the second filter screen increase in sequence.

[0113] Exemplarily, the second filter is installed in the first drying air duct 31 , specifically in the first heat exchange air duct 312 , at the air inlet end of the first heat exchange air duct 312 , and is arranged close to the evaporator 34 .

[0114] Preferably, the filtering device of the present invention further comprises a third filter screen, which is arranged in the drying air duct and downstream of the second filter screen, and the mesh number of the third filter screen is greater than the mesh number of the second filter screen.

[0115] That is to say, the airflow entering the first drying air duct 31 needs to flow through the third filter after flowing through the second filter.

[0116] Exemplarily, the third filter is installed in the first drying air duct 31 , specifically in the first heat exchange air duct 312 , and is located between the second filter and the evaporator 34 .

[0117] Preferably, the mesh number of the third filter is greater than 80 and not greater than 160, the mesh number of the second filter is greater than 40 and less than 80, and the mesh number of the first filter 46 is not less than 10 and not greater than 40. Exemplarily, the mesh number of the third filter is 150, the mesh number of the second filter is 60, and the mesh number of the first filter 46 is 30.

[0118] Preferably, if Figure 2 As shown, a first plug interface 3121 is provided on the drying air duct, and the second filter screen and the third filter screen of the filter device 4 extend into the drying air duct through the first plug interface 3121 .

[0119] The first plug port 3121 is disposed in the first drying air duct 31 , and specifically, the first plug port 3121 is disposed in the first heat exchange air duct 312 .

[0120] Preferably, if Figure 1 and Figure 2As shown, the housing 1 is provided with a second plug port 11 at a position corresponding to the first plug port 3121 , and the filter device 4 further comprises a bracket, on which the second filter screen and the third filter screen are mounted, and one end of the bracket extends to the second plug port.

[0121] When the filter device 4 needs to be cleaned, the user can directly pull out the bracket of the filter device 4 and the second filter screen and the third filter screen on the bracket from the second plug interface 11. After cleaning, the bracket of the filter device 4 and the second filter screen and the third filter screen on the bracket are passed through the second plug interface 11 and the first plug interface 3121 in turn and extended into the drying air duct.

[0122] Preferably, if Figures 1 to 5 As shown, the filtering device 4 of the utility model also includes a shell 43, a bracket is installed in the shell 43, and the bracket can move relative to the shell 43 along the length direction of the shell 43, the shell 43 is fixedly installed between the box body 1 and the first drying air duct 31, and the two ends of the shell 43 are respectively connected to the first plug interface 3121 and the second plug interface 11.

[0123] When the filter device 4 needs to be cleaned, it is only necessary to pull out the bracket and the second filter screen and the third filter screen on the bracket, and the housing 43 remains fixed.

[0124] Preferably, if Figures 3 to 5 As shown, the bracket of the utility model includes a first bracket 41 and a second bracket 42, the second filter and the third filter are installed on the second bracket 42, the first bracket 41 and the second bracket 42 are distributed along the insertion direction, and from the figure they are distributed along the length direction of the shell 43, the first end of the first bracket 41 extends to the second plug interface 11, the second end of the first bracket 41 is detachably fixedly connected to the first end of the second bracket 42, the second bracket 42 and the filter pass through the second plug interface 11 and the first plug interface 3121 in turn, extend into the first drying air duct 31 and are located upstream of the evaporator 34.

[0125] The second filter and the third filter are used to filter the air flow in the first drying air duct 31 and intercept impurities such as lint carried by the air flow. By arranging plug interfaces on the box body 1 and the first drying air duct 31, when the second filter and the third filter need to be cleaned, the second filter and the third filter can be pulled out from the first drying air duct 31 and the box body 1. In addition, by arranging the first bracket 41 and the second bracket 42 to be detachably connected, after the first bracket 41 is pulled out, the first bracket 41 and the second bracket 42 are disassembled, and then the second bracket 42 is pulled out, the required disassembly space can be reduced, which is convenient for users to disassemble and also convenient for cleaning the filter on the second bracket 42. In addition, by making the two ends of the shell 43 connected to the first plug interface 3121 and the second plug interface 11 respectively, when installing the second filter and the third filter, it is convenient to smoothly insert the second filter and the third filter into the first drying air duct 31, and the user experience is better.

[0126] For example, Figures 1 to 3 As shown, the first plug interface 3121 is arranged on the side wall of the front panel of the first heat exchange duct 312 facing the box body 1, and the second plug interface 11 is arranged on the front panel of the box body 1. The extension direction of the filter device 4 is parallel to the axis of the drum module 2. In this way, the user can pull out the second filter and the third filter from the front side of the washer-dryer, which is more convenient.

[0127] Preferably, if Figures 4 to 7 As shown, the filtering device 4 of the utility model also includes a locking pin 44, which is installed on the first bracket 41. The locking pin 44 is provided with a first locking structure 441, and the second bracket 42 is provided with a second locking structure 4221. When the locking pin 44 is in the locked position, the first locking structure 441 cooperates with the second locking structure 4221 to lock the second bracket 42 with the first bracket 41. When the locking pin 44 is in the unlocked position, the first locking structure 441 is separated from the second locking structure 4221 so as to disassemble and separate the second bracket 42 from the first bracket 41.

[0128] Exemplarily, a vertically extending accommodating cavity (not shown in the figure) is provided on the first bracket 41, and the top of the accommodating cavity is open. The locking pin 44 is installed in the accommodating cavity and can move up and down in the vertical direction to switch between the locked position and the unlocked position. The first locking structure 441 includes two locking hooks, and the two locking hooks are spaced apart in the vertical direction. The second locking structure 4221 includes two locking holes arranged at the end of the second bracket 42, and the locking holes are adapted to the locking hooks. A reset spring (not shown in the figure) is installed between the bottom of the locking pin 44 and the accommodating cavity. Under the action of the reset spring, the two locking hooks are respectively inserted into the corresponding locking holes to lock the first bracket 41 and the second bracket 42. When the two brackets need to be disassembled, the locking pin 44 is pressed downward to separate the locking hook from the locking hole, so that the first bracket 41 and the second bracket 42 can be disassembled.

[0129] It should be noted that the first locking structure 441 and the second locking structure 4221 are not limited to the structure of the lock hook and the lock hole described above. For example, they can also be set as two opposite lock hooks, etc. Such adjustments and changes to the specific structural forms of the first locking structure 441 and the second locking structure 4221 do not deviate from the principle and scope of the present utility model, and should be limited within the protection scope of the present utility model.

[0130] Preferably, if Figure 5 and Figure 6 As shown, the second bracket 42 includes a third filter frame 421 and a second filter frame 422, the first end of the third filter frame 421 and / or the second filter frame 422 is detachably fixedly connected to the second end of the first bracket 41, the second end of the third filter frame 421 is pivotally connected to the second end of the second filter frame 422, and the second filter and the third filter are respectively installed on the second filter frame 422 and the third filter frame 421.

[0131] Among them, the third filter frame 421 and the second filter frame 422 are arranged side by side along the flow direction of the airflow, and the third filter frame 421 is located downstream of the second filter frame 422. The second filter and the third filter are arranged in sequence along the flow direction of the airflow. The airflow first flows through the second filter for coarse filtration, and then flows through the third filter for fine filtration, so the filtering effect is better. In addition, by pivotally connecting the third filter frame 421 with the second filter frame 422, it is convenient to clean the third filter and the second filter.

[0132] For example, Figure 6 and Figure 7 As shown, the second locking structure 4221 is arranged at the first end of the second filter frame 422, and the end face of the first bracket 41 close to the second bracket 42 has a socket (not shown in the figure), the first end of the second filter frame 422 passes through the socket and extends into the first bracket 41, and the second end of the third filter frame 421 does not pass through the socket, and the second end of the third filter frame 421 is located on the outside of the first bracket 41, that is, the length of the third filter frame 421 is less than the length of the second filter frame 422.

[0133] It should be noted that, in actual applications, those skilled in the art may also make the first end of the third filter frame 421 detachably fixedly connected to the first bracket 41, or make the first ends of the third filter frame 421 and the second filter frame 422 detachably fixedly connected to the second end of the first bracket 41.

[0134] Preferably, if Figure 8 and Fig. 9As shown, the second end of the third filter frame 421 of the utility model is provided with a cylindrical structure 4211, and the first connecting structure 4212 is provided at both ends of the cylindrical structure 4211, and the second filter frame 422 is provided with a second connecting structure 4222 at a position corresponding to the first connecting structure 4212, the third filter frame 421 and the second filter frame 422 are pivotally connected by the first connecting structure 4212 and the second connecting structure 4222, and the second filter frame 422 is provided with an arc surface 4223 matched with the cylindrical structure 4211 at a position corresponding to the cylindrical structure 4211, and the cylindrical structure 4211 is in contact with the arc surface 4223.

[0135] By making the cylindrical structure 4211 on the third filter frame 421 fit with the arc surface 4223 on the second filter frame 422, it is more conducive to blocking impurities such as wire scraps and improving the filtering effect.

[0136] Exemplarily, the first connecting structure 4212 is a connecting shaft, a connecting shaft is respectively set at the top and bottom ends of the cylindrical structure 4211, and the second connecting structure 4222 is a connecting hole. The two connecting shafts are respectively located in the corresponding connecting holes and can rotate in the connecting holes, thereby realizing the pivot connection between the third filter frame 421 and the second filter frame 422.

[0137] It should be noted that, in practical applications, those skilled in the art may also set the first connection structure 4212 as a connection hole, and correspondingly set the second connection structure 4222 as a connection shaft.

[0138] Preferably, if Figure 8 and Fig. 9 As shown, the second filter frame 422 is provided with a receiving cavity 4224, and the third filter frame 421 is located in the receiving cavity 4224. In other words, the third filter frame 421 is embedded in the receiving cavity 4224.

[0139] It should be noted that, a skilled technician can make the third filter rack 421 entirely located in the accommodating cavity 4224 on the second filter rack 422, or can make only the portion of the third filter rack 421 provided with the third filter located in the accommodating cavity 4224 on the second filter rack 422, and so on. Such flexible adjustments and changes do not deviate from the principle and scope of the present utility model and should be limited within the protection scope of the present utility model.

[0140] Preferably, if Figure 8 and Fig. 9 As shown, the third filter frame 421 is provided with a strip convex rib 4213 extending along the length direction thereof, and the strip convex rib 4213 is in contact with the inner wall of the accommodating cavity 4224 .

[0141] By providing the strip-shaped convex rib 4213 on the third filter frame 421 to fit with the inner wall of the accommodating cavity 4224 on the second filter frame 422, it is more conducive to blocking impurities such as wire scraps, and further improves the filtering effect.

[0142] For example, Figure 8 As shown, a strip convex rib 4213 is provided on the top of the third filter frame 421. It should be noted that a strip convex rib 4213 can also be provided on the bottom of the third filter frame 421.

[0143] In addition, it should be noted that, in actual applications, those skilled in the art may also cancel the outer shell 43, or cancel the first bracket 41. In this case, the second bracket 42 and the filter may be inserted into the drying duct from the back or top of the box body 1. Alternatively, the first bracket 41 and the second bracket 42 may be completely canceled. In this case, the filter may be directly fixed in the drying duct, etc. These sub-preferred implementations are also within the protection scope of the present utility model.

[0144] Preferably, if Figures 11 to 14 As shown, the washer-dryer of the present invention further includes a flushing device, which can flush the first filter 46, the second filter and / or the third filter.

[0145] In actual applications, those skilled in the art can configure the flushing device to flush only any one of the first filter 46, the second filter and the third filter, or only any two of the first filter 46, the second filter and the third filter, or all of the first filter 46, the second filter and the third filter.

[0146] By setting up a flushing device, each filter can be flushed regularly to avoid the situation where wire scraps are not cleaned in time. In addition, it can also reduce the number of times users disassemble and clean the filter, thereby improving the user experience.

[0147] Preferably, if Figures 11 to 14 As shown, the flushing device of the present invention comprises a first flushing mechanism and a second flushing mechanism. The first flushing mechanism can flush the first filter screen 46, and the second flushing mechanism can flush the third filter screen and / or the second filter screen.

[0148] By providing two flushing mechanisms, it is convenient to independently control the amount of wire scraps on each filter screen. The first flushing mechanism and the second flushing mechanism can be connected to the same water source, or each can be equipped with an independent water source.

[0149] Preferably, if Figure 2 and Fig.14As shown, the first flushing mechanism includes a spray pipe 6 having a water inlet 61 and a water spray outlet 62 . The spray pipe 6 is installed on the drying air duct. The water spray outlet 62 is located in the drying air duct and faces the first filter screen 46 .

[0150] Exemplarily, the spray pipe 6 is fixedly installed on the return air duct 311 of the first drying air duct 31, and the spray pipe 6 is located downstream of the first filter 46. The water inlet 61 of the spray pipe 6 is connected to the water source through a pipeline. When the first filter 46 needs to be flushed, the water source supplies water to the spray pipe 6, and the water is sprayed onto the first filter 46 through the water spray port 62.

[0151] Preferably, if Figures 11 to 13 As shown, the second flushing mechanism includes a water spray chamber and a flushing filter channel arranged on the drying air duct, the water spray chamber is located above the third filter and / or the second filter and extends along the length direction of the third filter and / or the second filter, the top end of the flushing filter channel is connected to the water spray chamber, and the bottom end of the flushing filter channel faces the third filter and / or the second filter.

[0152] The water spray chamber and the flushing filter screen channel are arranged at the top of the first heat exchange air duct of the first drying air duct, the water spray chamber is in an elongated shape and is located above the second bracket 42 of the filter device, the water spray chamber is connected to the water source, and when the third filter screen and / or the second filter screen need to be cleaned, water is supplied to the water spray chamber through the water source, and the water in the water spray chamber is sprayed onto the third filter screen and / or the second filter screen through the flushing filter screen channel. The water source can be set as a water storage tank, which is installed in the housing of the washer-dryer, and a water pump is arranged in the water tank, and the water outlet of the water pump is connected to the water spray chamber of the second flushing mechanism through a water pipe.

[0153] It should be noted that in order to facilitate the discharge of water and lint, a drain outlet is provided at the bottom of the drying duct, and the drain outlet is connected to the water drainage pipeline. When cleaning the filter and / or evaporator, water and lint can enter the drainage pipeline through the drain outlet and be discharged.

[0154] In addition, it should be noted that a person skilled in the art may integrate the second flushing mechanism with the drying duct, or may configure the second flushing mechanism as an independent component and then fix it on the drying duct, etc. Such flexible adjustments and changes do not deviate from the principle and scope of the present utility model and shall be limited within the protection scope of the present utility model.

[0155] It should be noted that the present invention does not limit the shape of the flushing filter channel. For example, a person skilled in the art may set the flushing filter channel as an integral long channel extending along the length direction of the water spray chamber, or may set the flushing filter channel to include multiple columnar channels, and so on.

[0156] In addition, it should be noted that, in actual applications, technicians in this field can configure the second flushing mechanism to spray water only toward the third filter, or only toward the second filter, or both toward the third filter and the second filter.

[0157] Preferably, if Figures 11 to 13 As shown, the flushing filter channel includes a first flushing filter channel 53 and a second flushing filter channel 54, and the water spray chamber includes a first water spray chamber 51 and a second water spray chamber 52 separated from each other. The top end of the first flushing filter channel 53 is connected to the first water spray chamber 51, and the bottom end of the first flushing filter channel 53 faces the third filter. The top end of the second flushing filter channel 54 is connected to the second water spray chamber 52, and the bottom end of the second flushing filter channel 54 faces the second filter.

[0158] That is to say, the first water spraying chamber 51 and the second water spraying chamber 52 are not connected, so that the first flushing filter channel 53 and the second flushing filter channel 54 can spray water separately.

[0159] Exemplarily, a partition structure 58 is provided in the water spray chamber, and the partition structure 58 divides the water spray chamber into a first water spray chamber 51 and a second water spray chamber 52. The first water spray chamber 51 and the second water spray chamber 52 are distributed along the width direction of the water spray chamber. The first water spray chamber 51 and the second water spray chamber 52 are respectively connected to a first water inlet joint 56 and a second water inlet joint 57. The first water inlet joint 56 and the second water inlet joint 57 are respectively connected to the same water source through a first water inlet pipe and a second water inlet pipe. A first water inlet valve and a second water inlet valve are respectively provided on the first water inlet pipe and the second water inlet pipe. The first water inlet valve and the second water inlet valve are respectively used to control the on-off state of the first water inlet pipe and the second water inlet pipe. The first flushing filter channel 53 is located downstream of the third filter, and is mainly used to flush the third filter. The second flushing filter channel 54 is located upstream of the second filter, and is mainly used to flush the second filter.

[0160] It should be noted that those skilled in the art may also configure the first water spray chamber 51 and the second water spray chamber 52 as two completely independent ones. In addition, a water source may be respectively configured for the first water spray chamber 51 and the second water spray chamber 52, or the same water source may be used and an independent water pump may be respectively configured, etc. Such flexible adjustments and changes do not deviate from the principle and scope of the utility model and should be limited within the protection scope of the utility model.

[0161] In addition, it should be noted that in order to make it easier to see the structure inside the water spray chamber, Figures 11 to 13 The cover body on the top of the water spray chamber is not shown. In addition, the first drying air duct 31 is composed of an upper part and a lower part, and the second flushing mechanism is arranged in the upper part. Figures 11 to 13Only the upper part of the first drying air duct 31 is shown. It should be noted that the upper part and the lower part of the first drying air duct 31 can be fixedly connected by fasteners such as screws, or can also be set as an integrated structure.

[0162] Preferably, if Figures 11 to 13 As shown, the first flushing filter channel 53 is cylindrical and there are multiple of them, and the multiple first flushing filter channels 53 are distributed at intervals along the length direction of the first water spray chamber 51.

[0163] That is to say, a plurality of first flushing filter channels 53 are spaced apart and distributed along the length direction of the first water spraying chamber 51 , and the first flushing filter channels 53 are cylindrical.

[0164] The cross section of the first flushing filter channel 53 can be set to be circular, square, rectangular or elliptical, etc.

[0165] Preferably, if Figures 11 to 13 As shown, the second flushing filter channel 54 is cylindrical and there are multiple of them, and the multiple second flushing filter channels 54 are distributed at intervals along the length direction of the second water spray chamber 52.

[0166] That is to say, a plurality of second flushing filter channels 54 are spaced apart and distributed along the length direction of the second water spraying chamber 52, and the second flushing filter channels 54 are cylindrical.

[0167] The cross section of the second flushing filter channel 54 can be set to be circular, square, rectangular or elliptical, etc.

[0168] Preferably, if Figures 11 to 13 As shown, the cross-sectional area of ​​the flushing filter channel gradually decreases in the direction away from its top end.

[0169] That is to say, the cross-sectional area of ​​the flushing filter channel gradually decreases from the top end to the bottom end of the flushing filter channel, so that the injection speed of the water flow can be increased, thereby improving the cleaning effect of the second flushing mechanism.

[0170] It should be noted that, when the flushing filter channel includes the first flushing filter channel 53 and the second flushing filter channel 54, only the cross-sectional area of ​​the first flushing filter channel 53 can be gradually reduced in the direction away from its top, or only the cross-sectional area of ​​the second flushing filter channel 54 can be gradually reduced in the direction away from its top, or both the cross-sectional area of ​​the first flushing filter channel 53 and the cross-sectional area of ​​the second flushing filter channel 54 can be gradually reduced in the direction away from their top.

[0171] Preferably, if Figures 11 to 13 As shown, the angle between the extended line of the flushing filter channel and the filtering surface of the third filter and / or the second filter is no greater than 10°.

[0172] Exemplarily, the third filter and / or the second filter are vertically arranged, and the filter surface is also vertical. The angle between the extension line of the flushing filter channel and the filter surface is the angle between the extension line of the flushing filter channel and the vertical plane. By limiting this angle, the cleaning area of ​​the second flushing mechanism can be guaranteed. The smaller the angle, the larger the cleaning area of ​​the second flushing mechanism.

[0173] For example, those skilled in the art can set the angle between the extension line of the flushing filter channel and the filter surface of the filter device to 1°, 2°, 3°, 4°, 5°, 6°, 7°, 8°, 9° or 10°. Further preferably, the angle between the extension line of the flushing filter channel and the vertical plane is not greater than 5°.

[0174] It should be noted that, when the flushing filter channel includes the first flushing filter channel 53 and the second flushing filter channel 54, the angle between the first flushing filter channel 53 and the filtering surface of the filtering device along the extension line can be no greater than 10°, or the angle between the second flushing filter channel 54 and the filtering surface of the filtering device along the extension line can be no greater than 10°, or the angle between the first flushing filter channel 53 and the second flushing filter channel 54 and the filtering surface of the filtering device along the extension line can be no greater than 10°.

[0175] Preferably, if Figures 11 to 13 As shown, the second flushing mechanism also includes a flushing evaporator channel 55 arranged on the drying air duct, the top end of the flushing evaporator channel 55 is connected to the water spray chamber, and the bottom end of the flushing evaporator channel 55 faces the windward surface of the evaporator 34.

[0176] The top end of the flushing evaporator channel 55 is connected to the first water spray chamber 51 .

[0177] Preferably, if Figures 11 to 13 As shown, the angle between the extended line of the flushing evaporator channel 55 and the windward surface of the evaporator is not greater than 10°.

[0178] Exemplarily, the windward surface of the evaporator is vertically arranged, and the angle between the extension line of the flushing evaporator channel 55 and the windward surface is the angle between the extension line of the flushing evaporator channel 55 and the vertical plane. By limiting this angle, the cleaning area of ​​the second flushing mechanism can be guaranteed. The smaller the angle, the larger the cleaning area of ​​the second flushing mechanism.

[0179] For example, those skilled in the art can set the angle between the extension line of the flushing evaporator channel 55 and the windward surface of the evaporator to 1°, 2°, 3°, 4°, 5°, 6°, 7°, 8°, 9° or 10°. Further preferably, the angle between the extension line of the flushing evaporator channel 55 and the vertical plane is not greater than 5°.

[0180] Preferably, if Figures 11 to 13 As shown, the flushing evaporator channel 55 is cylindrical and there are multiple of them, and the multiple flushing evaporator channels 55 are distributed at intervals along the length direction of the water spray chamber.

[0181] That is, a plurality of flushing evaporator channels 55 are spaced apart and distributed along the length direction of the first water spraying chamber 51 , and the flushing evaporator channels 55 are columnar.

[0182] The cross section of the flushing evaporator channel 55 may be circular, square, rectangular, elliptical, or the like.

[0183] Preferably, if Figures 11 to 13 As shown, the cross-sectional area of ​​the flushing evaporator channel 55 gradually decreases in a direction away from the top end thereof.

[0184] That is to say, the cross-sectional area of ​​the flushing evaporator channel 55 gradually decreases from the top end to the bottom end of the flushing evaporator channel 55, so that the injection speed of the water flow can be increased, thereby improving the cleaning effect of the second flushing mechanism.

[0185] Those skilled in the art will appreciate that, although some embodiments described herein include certain features included in other embodiments but not other features, the combination of features of different embodiments is meant to be within the scope of the present application and form different embodiments. For example, in the claims of the present application, any one of the claimed embodiments may be used in any combination.

[0186] So far, the technical solution of the present invention has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A drying device, characterized in that: include: A barrel module, wherein the barrel module is provided with an air inlet and an air outlet; A drying air duct, wherein two ends of the drying air duct are respectively connected to the air inlet and the air outlet; as well as A first filter screen is arranged at the air inlet end of the drying air duct or in the air outlet.

2. The drying device according to claim 1, characterized in that: The filter surface of the first filter screen is a flat surface or is convex toward the downstream of the first filter screen.

3. The drying device according to claim 1, characterized in that: The drying device further includes a second filter screen, which is disposed in the drying air duct and downstream of the first filter screen, and the mesh number of the second filter screen is greater than the mesh number of the first filter screen.

4. The drying device according to claim 3, characterized in that: The drying device further includes a third filter screen, which is disposed in the drying air duct and downstream of the second filter screen, and the mesh number of the third filter screen is greater than the mesh number of the second filter screen.

5. The drying device according to claim 1, characterized in that: The drying device further comprises an annular first filter frame, the first filter frame is detachably fixedly connected to the drying air duct or the drum module, and the first filter is arranged on the first filter frame.

6. The drying device according to claim 5, characterized in that: The first filter screen frame is provided with supporting ribs at the position where the first filter screen is arranged.

7. The drying device according to claim 6, characterized in that: The supporting rib is provided with a protruding structure extending along the axial direction of the first filter frame.

8. The drying device according to claim 1, characterized in that: The drying device further comprises a first flushing mechanism, and the first flushing mechanism is capable of flushing the first filter screen.

9. The drying device according to claim 8, characterized in that: The first flushing mechanism comprises a spray pipe having a water inlet and a water spray outlet. The spray pipe is installed on the drying air duct. The water spray outlet is located in the drying air duct and faces the first filter.

10. The drying device according to any one of claims 1 to 9, characterized in that: The drying air duct includes a first drying air duct and a second drying air duct located above the drum module, and the drying equipment also includes a heat pump module, the heat pump module includes an evaporator and a condenser, the first drying air duct and the second drying air duct are respectively connected to the suction port and the exhaust port of the fan of the drying equipment, the first drying air duct and the second drying air duct are arranged in an L shape, the evaporator is arranged in the first drying air duct, the condenser is arranged in the second drying air duct, the first drying air duct is connected to the air outlet, and the second drying air duct is connected to the air inlet.

Images