Drying equipment

Abstract

The invention relates to the technical field of clothes treatment equipment, in particular to drying equipment. The drying apparatus of the present invention comprises: a cartridge module; a drying air duct; the first filter screen and the second filter screen are installed in the drying air channel, the first filter screen is located on the downstream portion of the second filter screen, the third filter screen is installed at the air inlet end of the drying air channel or in the air outlet of the cylinder module, the third filter screen can block most thread scraps, only a small part of thread scraps can enter the drying air channel, and the mesh number of the third filter screen is minimum. The number of the first filter screen located at the most downstream is the largest, most of thread scraps entering the drying air channel are intercepted by the second filter screen, even if a small part of thread scraps penetrate through the second filter screen, the thread scraps can be intercepted by the first filter screen with higher filtering precision, the thread scraps can be intercepted three times, and the interception strength is gradually increased at a time; the filtering effect can be improved, smooth airflow is facilitated, and when a large amount of thread scraps are accumulated on the filter screen, the thread scraps on the filter screen are flushed away in time through the flushing device.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of clothes treatment equipment, and particularly provides a drying equipment. BACKGROUND

[0002] The drying equipment refers to a machine capable of drying clothes by using hot air. The drying equipment mainly includes a washing-drying integrated machine, a clothes dryer or a drying machine, etc.

[0003] Taking the washing-drying integrated machine as an example, the existing washing-drying integrated machine on the market is mainly of an electric heating mode or a heat pump heating mode. No matter which heating mode is selected, the drying process cannot be completed without the circulation air duct. In the drying process, lint on the clothes will fall off and be carried by the fan and attached to the entire air duct.

[0004] In order to avoid the above situation, many washing-drying integrated machines select to set a filtering device in the drying air duct to filter the lint. However, when drying clothes with a large amount of lint such as wool, 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, there is a need in the art for a new technical solution to solve the above problems. SUMMARY

[0006] The present application aims to solve the above technical problems, i.e., to solve the problem that the existing drying equipment is blocked by lint when drying clothes with a large amount of lint, causing poor air flow and seriously affecting the drying efficiency.

[0007] In a first aspect, the present application provides a drying equipment, comprising:

[0008] a drum module, wherein an air inlet and an air outlet are arranged on the drum module;

[0009] a drying air duct, wherein two ends of the drying air duct are in communication with the air inlet and the air outlet, respectively;

[0010] a heat pump module, wherein an evaporator and a condenser are installed in the drying air duct, and the evaporator is located upstream of the condenser;

[0011] a filtering device, wherein the filtering device comprises a first filter screen, a second filter screen and a third filter screen, the first filter screen and the second filter screen are installed in the drying air duct, the first filter screen is located downstream of the second filter screen, the first filter screen is located upstream of the evaporator, the third filter screen is installed in the air inlet end of the drying air duct or the air outlet, the mesh number of the first filter screen is greater than that of the second filter screen, and the mesh number of the second filter screen is greater than that of the third filter screen; and

[0012] A rinsing device capable of rinsing the first filter screen, the second filter screen, and / or the third filter screen.

[0013] In the preferred embodiment of the above-mentioned drying equipment, the rinsing device includes a first rinsing mechanism and a second rinsing mechanism. The first rinsing mechanism is capable of rinsing the first filter screen and / or the second filter screen, and the second rinsing mechanism is capable of rinsing the third filter screen.

[0014] In the preferred embodiment of the above-mentioned drying equipment, the first rinsing mechanism includes a water spray chamber and a filter rinsing channel disposed on the drying air duct. The water spray chamber is located above the first filter and / or the second filter and extends along the length direction of the first filter and / or the second filter. The top end of the filter rinsing channel communicates with the water spray chamber, and the bottom end of the filter rinsing channel faces the first filter and / or the second filter.

[0015] In the preferred embodiment of the above-mentioned drying equipment, the rinsing filter channel includes a first rinsing filter channel and a second rinsing filter channel, the spray chamber includes a separated first spray chamber and a second spray chamber, the top end of the first rinsing filter channel communicates with the first spray chamber, and the bottom end of the first rinsing filter channel faces the first filter screen; the top end of the second rinsing filter channel communicates with the second spray chamber, and the bottom end of the second rinsing filter channel faces the second filter screen; and / or

[0016] The first rinsing mechanism further includes a rinsing evaporator channel disposed on the drying air duct, the top end of the rinsing evaporator channel being connected to the water spray chamber, and the bottom end of the rinsing evaporator channel facing the windward side of the evaporator.

[0017] In the preferred embodiment of the above-mentioned drying equipment, the filtration device further includes a first support and a second support. The first filter and the second filter are both installed on the second support. The drying air duct is provided with a first insertion interface. The housing of the drying equipment is provided with a second insertion interface at a position corresponding to the first insertion interface. The first end of the first support extends to the second insertion interface. The second end of the first support is detachably and fixedly connected to the first end of the second support. The second support, the first filter, and the second filter pass through the second insertion interface and the first insertion interface in sequence and extend into the drying air duct.

[0018] In the preferred embodiment of the above-mentioned drying equipment, the second support includes a first filter frame and a second filter frame. The second end of the first filter frame is provided with a cylindrical structure, and both ends of the cylindrical structure are provided with connecting shafts. The second filter frame is provided with an arc surface adapted to the cylindrical structure at a position corresponding to the cylindrical structure. The second filter frame is provided with a connecting hole at a position corresponding to the connecting shaft. The connecting shaft is located in the connecting hole and can rotate in the connecting hole. The cylindrical structure fits into the arc surface. The first end of the first filter frame and / or the second filter frame is detachably and fixedly connected to the first support. The first filter and the second filter are respectively installed on the first filter frame and the second filter frame.

[0019] In the preferred embodiment of the above-mentioned drying equipment, the second filter frame is provided with a receiving cavity, the first filter frame is located in the receiving cavity, and the first filter frame is provided with strip-shaped ribs extending along its length direction, the strip-shaped ribs being in contact with the inner wall of the receiving cavity.

[0020] In the preferred embodiment of the above-mentioned drying equipment, the filtration device further includes an annular support, which is detachably and fixedly connected to the drying duct or the cylindrical module, and the third filter screen is installed on the annular support.

[0021] In the preferred embodiment of the above-mentioned drying equipment, the second rinsing mechanism includes a spray pipe, which has a water inlet and a spray nozzle. The spray pipe is installed on the drying air duct, and the spray nozzle is located inside the drying air duct and faces the third filter.

[0022] In the preferred embodiment 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 cylinder module. The first drying air duct and the second drying air duct are respectively connected to the air intake and air exhaust 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, the first filter screen and the second filter screen are arranged in the first drying air duct, and 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.

[0023] In the case of the above technical solution, the drying equipment of the present invention is provided with a third filter, a second filter, and a first filter arranged sequentially along the airflow direction. The third filter is placed at the air inlet of the drying duct or at the air outlet of the cylindrical module. The third filter can block most of the lint, allowing only a small portion of lint to enter the drying duct. The third filter has the smallest mesh size, which helps to reduce the impact on airflow. The second and third filters are both arranged in the drying duct, with the first filter at the downstream end having the largest mesh size. Most of the lint entering the drying duct is intercepted by the second filter. Even if a small portion of lint passes through the second filter, it can be intercepted by the first filter, which has a higher filtration precision. By intercepting lint and other impurities in three stages, with the interception intensity increasing sequentially, the filtration effect can be improved, and the airflow can be facilitated. In addition, a rinsing device is provided to rinse the filter. When a large amount of lint accumulates on the filter, the rinsing device can promptly wash away the lint to avoid affecting the drying efficiency.

[0024] Furthermore, by setting a first rinsing mechanism and a second rinsing mechanism to rinse the corresponding filter screens respectively, the present invention facilitates independent control based on the amount of lint on each filter screen. For example, if there is less lint on the first filter screen and more lint on the third filter screen, only the second rinsing mechanism can be activated to rinse the third filter screen, while the first rinsing mechanism remains closed, thus avoiding waste of water resources.

[0025] Furthermore, the present invention sets the first rinsing structure as a water spray chamber and a rinsing filter channel. The water in the water spray chamber is sprayed onto the filter through the rinsing filter channel, which can accelerate the water flow and thus improve the rinsing effect on the filter.

[0026] Furthermore, by setting up a first spray chamber and a second spray chamber that are separated, as well as a first flushing filter channel and a second flushing filter channel that are respectively connected to the first spray chamber and the second spray chamber, the present invention facilitates independent control based on the amount of lint on the first filter and the second filter. Moreover, by flushing them independently, it is beneficial to ensure the water flow rate, thereby ensuring that the flushing filter channel has sufficient spray pressure and ensuring the flushing effect on the filter.

[0027] Furthermore, the present invention flushes the windward side of the evaporator by setting up a flushing evaporator channel, washing away the lint accumulated on the windward side of the evaporator, allowing the airflow to flow smoothly through the evaporator, which is beneficial to further improve drying efficiency.

[0028] Furthermore, by making the first and second supports of the filtration device detachable, the present invention can reduce the required disassembly space and facilitate the cleaning of the filter screen on the second support.

[0029] Furthermore, by fitting the cylindrical structure on the first filter frame with the arcuate surface on the second filter frame, the present invention can better block lint and further improve the filtration effect.

[0030] Furthermore, by making the strip-shaped ribs on the first filter frame fit against the inner wall of the receiving cavity on the second filter frame, the present invention can better block lint and further improve the filtration effect.

[0031] Furthermore, by installing the third filter on the annular bracket and making the annular bracket detachably installed on the drying air duct or cylinder module, the present invention facilitates the removal of the third filter for cleaning, maintenance or replacement. Attached Figure Description

[0032] The preferred embodiments of the present invention are described below with reference to the accompanying drawings, in which:

[0033] Figure 1 This is a schematic diagram of the overall structure of the washer-dryer combo of the present invention; (top plate of the cabinet omitted).

[0034] Figure 2 This is a schematic diagram of the heat pump system in the washer-dryer combo of the present invention. Figure 1 ;

[0035] Figure 3 This is a schematic diagram of the heat pump system in the washer-dryer combo of the present invention. Figure 2 ;

[0036] Figure 4 This is a schematic diagram of the outer shell and second support structure of the filter device in the washer-dryer combo of the present invention;

[0037] Figure 5 This 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 combo of the present invention.

[0038] Figure 6 This is a schematic diagram of the structure of the second support and locking pin in the washer-dryer combo of the present invention;

[0039] Figure 7 This is a schematic diagram of the locking pin of the filter device in the washer-dryer combo of the present invention;

[0040] Figure 8 This is a schematic diagram of the structure of the first filter screen frame of the filter device in the washer-dryer combo of the present invention;

[0041] Figure 9 This is a schematic diagram of the structure of the second filter screen frame of the filter device in the washer-dryer combo of the present invention;

[0042] Figure 10 This is a schematic diagram of the structure of the annular support of the filter device in the washer-dryer combo of the present invention;

[0043] Figure 11 This is a schematic diagram of the structure of the first drying air duct and the second rinsing mechanism in the washer-dryer combo of the present invention;

[0044] Figure 12 yes Figure 11 Sectional view at point AA;

[0045] Figure 13 yes Figure 12 Enlarged view of point B in the middle;

[0046] Figure 14 This is a schematic diagram of the spray pipe structure in the washer-dryer combo of the present invention.

[0047] List of reference numerals in the attached diagram:

[0048] 1. Housing; 11. Second insertion interface;

[0049] 2. Cylinder module;

[0050] 31. First drying air duct; 311. Return air duct; 312. First heat exchange air duct; 313. First connecting air duct; 3121. First insertion interface; 3122. Fresh air inlet;

[0051] 32. Fan;

[0052] 33. Second drying air duct; 331. Second heat exchange air duct; 332. Air outlet duct; 333. Second connecting air duct; 3321. Fresh air outlet; 3331. Airflow guiding structure;

[0053] 34. Evaporator; 35. Condenser;

[0054] 4. Filtering device; 41. First support; 42. Second support; 43. Outer shell; 44. Locking pin; 46. Third filter screen; 47. Annular support; 441. First locking structure; 421. First filter screen frame; 422. Second filter screen frame; 4211. Cylindrical structure; 4212. First connecting structure; 4213. Strip rib; 4221. Second locking structure; 4222. Second connecting structure; 4223. Arc surface; 4224. Receiving cavity; 471. Support rib; 472. Protruding structure;

[0055] 51. First spray chamber; 52. Second spray chamber; 53. First filter flushing channel; 54. Second filter flushing channel; 55. Evaporator flushing channel; 56. First water inlet connector; 57. Second water inlet connector; 58. Separation structure;

[0056] 6. Sprinkler pipe; 61. Water inlet; 62. Spray nozzle. Detailed Implementation

[0057] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended 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 description is in conjunction with a washer-dryer combo, the technical solution of the present invention is equally applicable to other types of drying equipment, such as heat pump dryers. Such adjustments and changes to the application do not deviate from the principles and scope of the present invention and should all be limited to the scope of protection of the present invention.

[0058] It should be noted that in the description of this invention, terms such as "upper," "lower," "front," "rear," "longitudinal," "lateral," "top," and "bottom," which indicate direction or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the relevant devices or components must have a specific orientation, or be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this invention. Furthermore, ordinal numbers such as "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0059] Furthermore, it should be noted that, in the description of this invention, unless otherwise explicitly specified and limited, the terms "installation," "setting," and "connection" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0060] Reference Figures 1 to 14 A specific preferred embodiment of the present invention will be described below.

[0061] like Figures 1 to 3 As shown, the washer-dryer combo of the present invention includes a housing 1, a drum module 2 (also referred to as an outer drum or washing drum) and a drying system disposed inside the housing 1. The drying system is capable of supplying hot air into the drum module 2 to dry the clothes.

[0062] Preferably, such as Figures 1 to 3 As shown, the drying system of the present invention includes a drying duct, a heat pump module, and a fan 32. The cylindrical module 2 is provided with an air inlet and an air outlet. The two ends of the drying duct are respectively connected to the air inlet and the air outlet. The heat pump module includes an evaporator 34 and a condenser 35 installed in the drying duct. The evaporator 34 is located upstream of the condenser 35. Under the action of the fan 32, the airflow can circulate in the drying duct and the cylindrical module 2, and exchange heat with the evaporator 34 and the condenser 35 when it flows through them.

[0063] Preferably, such as Figures 1 to 3 As shown, the drying air duct of the present invention 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 disposed in the first drying air duct 31 and the condenser 35 is disposed in the second drying air duct 33. The first drying air duct 31 is connected to the air outlet on the cylinder module 2 and the second drying air duct 33 is connected to the air inlet on the cylinder module 2.

[0064] In this embodiment, the hot and humid air inside the cylindrical module 2 is circulated by the fan 32. It enters the first drying air duct 31, the second drying air duct 33, and the air inlet of the cylindrical module 2 through the air outlet. Under the action of the evaporator 34, the moisture in the hot and humid air is condensed and separated from the airflow. Under the action of the condenser 35, the temperature of the air is raised to supply hot air into the cylindrical module 2, thereby drying the clothes inside the cylindrical module 2.

[0065] It should be noted that the drying duct of the present invention is not limited to the two-section structure described above. In practical applications, those skilled in the art can also configure the drying duct as a single-section structure. In this case, the fan 32 can be installed on the air outlet or air inlet of the cylindrical module 2, and then the fan can be connected to the air inlet or air outlet through the drying duct. Of course, the present invention preferably configures the drying duct as the first drying duct and the second drying duct described above, with the fan positioned between the first drying duct and the second drying duct.

[0066] Furthermore, it should be noted that those skilled in the art can replace the heat pump module with an electric heating device, etc. Such flexible adjustments and changes do not deviate from the principles and scope of the present invention and should be limited to the protection scope of the present invention.

[0067] Preferably, such as Figure 1 As shown, the first drying air duct 31, the fan 32, and the second drying air duct 33 are all located above the cylindrical module 2.

[0068] Preferably, the heat pump module of the present invention further includes a compressor (not shown in the figure), which is disposed below the cylinder module 2.

[0069] For example, the compressor is vertically positioned at the lower left of the cylinder module 2. Of course, the compressor can also be horizontally positioned, as long as it can be installed in the lower space between the cylinder module 2 and the housing 1. The compressor, evaporator 34, and condenser 35 are interconnected to form a refrigerant circulation loop. The refrigerant exchanges heat with the humid and hot air flowing through the evaporator 34, which causes the moisture in the humid and hot air to condense and separate from the airflow. The refrigerant exchanges heat with the air flowing through the condenser 35, which raises the temperature of the air, thereby supplying hot air into the cylinder module 2.

[0070] Preferably, such as Figures 1 to 3 As shown, the first drying air duct 31 includes a connected return air duct 311 and a first heat exchange air duct 312. The return air duct 311 and the first heat exchange air duct 312 are located at the rear upper part of the cylindrical module 2, that is, near the rear end of the cylindrical module 2. The evaporator 34 is located inside the first heat exchange air duct 312, and the air outlet is located at the rear upper part of the cylindrical module 2, that is, the air outlet is also located near the rear end of the cylindrical module 2, so as to facilitate the connection between the return air duct 311 and the air outlet. The first heat exchange air duct 312 extends horizontally, and the extension direction of the first heat exchange air duct 312 is perpendicular to the axial direction of the cylindrical module 2.

[0071] The return air duct 311 and the first heat exchange duct 312 are preferably configured to be detachably fixedly connected.

[0072] Furthermore, such as Figures 1 to 3 As shown, the second drying air duct 33 includes a connected second heat exchange air duct 331 and an air outlet air duct 332. The air outlet air duct 332 and the second heat exchange air duct 331 are located at the upper left or upper right of the cylindrical module 2. The condenser 35 is located inside the second heat exchange air duct 331. The air inlet is located at the upper front of the cylindrical module 2, that is, the air inlet is located near the front end of the cylindrical module 2. The air outlet air duct 332 is connected to the air inlet. The second heat exchange air duct 331 also extends horizontally, and the extension direction of the second heat exchange air duct 331 is parallel to the axial direction of the cylindrical 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. The two heat exchange air ducts are arranged in an approximately L-shape.

[0073] The second heat exchange duct 331 and the air outlet duct 332 are preferably configured to be detachably fixed.

[0074] This embodiment addresses the structural characteristics of the space above the inner drum module 2 of the housing 1. Specifically, taking a drum-type washer-dryer combo as an example, a laundry detergent dispenser is typically installed in the upper left front space. Correspondingly, there is some unused space in the upper rear and upper right. Therefore, based on the characteristics of the internal space of the housing 1, this embodiment of the washer-dryer combo places the first drying duct 31 in the upper rear space, the second drying duct 33 in the upper right space, and the fan 32 between the first and second drying ducts 31, located at the corner in the upper right. From the overall layout, the first drying duct 31, the fan 32, and the second drying duct 33 are vertically distributed, maximizing the use of available space while ensuring that the overall height of the washer-dryer combo remains unchanged.

[0075] It should be noted that the front end of the cylindrical module 2 has a clothing loading and unloading port. Those skilled in the art can use this clothing loading and unloading port as an air inlet, even if the air outlet duct 332 is connected to the clothing loading and unloading port. Alternatively, a separate air inlet can be opened above the front end of the cylindrical module 2 as an air inlet, etc. Such adjustments and changes to the specific configuration of the air inlet do not deviate from the principle and scope of the present invention and should be limited to the protection scope of the present invention.

[0076] Furthermore, in order to maximize heat exchange efficiency and ensure drying effect within a limited space, it is necessary to enlarge the heat exchange bodies of the evaporator 34 and condenser 35 as much as possible. Therefore, the first heat exchange duct 312 and the second heat exchange duct 331 have external contours adapted to their respective spaces, so that the heat exchange bodies of the evaporator 34 housed in the first heat exchange duct 312 and the heat exchange bodies of the condenser 35 housed in the second heat exchange duct 331 are enlarged as much as possible.

[0077] Specifically, such as Figure 1 and Figure 2 As shown, the first heat exchange duct 312 is located at the upper rear of the cylindrical module 2, roughly in the middle of the cylindrical module 2. Since the cylindrical module 2 has a cylindrical structure, the middle position of the cylindrical structure is roughly planar. Therefore, the first heat exchange duct 312 is roughly rectangular, that is, the first heat exchange duct 312 is roughly flat, and the cross-section is approximately rectangular. Correspondingly, the heat exchange body of the evaporator 34 inside it is arranged in a regular rectangular pattern. The second heat exchange duct 331 is located at the upper right of the cylindrical module 2. In order to adapt to the cylindrical structure of the cylindrical module 2 and make full use of this part of the space, the second heat exchange duct 331 is set as a non-rectangular structure. That is, in this part of the space, the second heat exchange duct 331 is set as a "7" shaped structure, that is, a structure that is wider at the top and narrower at the bottom. The surface of the second heat exchange duct 331 near the cylindrical module 2 is set as a concave arc surface. This concave arc surface shares the same central axis as the cylindrical module 2. Correspondingly, the heat exchange body of the condenser 35 inside it is also arranged in a "7" shaped pattern.

[0078] It should be noted that the shapes of the first heat exchange duct 312 and the second heat exchange duct 331 described above, as well as the arrangement of the heat exchange bodies corresponding to the evaporator 34 and the condenser 35 respectively arranged inside them, are merely exemplary. Those skilled in the art can also arrange other shapes according to actual conditions, as long as the space between the box 1 and the cylindrical module 2 can be fully utilized, so that the bottom contours of the first heat exchange duct 312 and the second heat exchange duct 331 match the contours of the cylindrical wall of the cylindrical module 2, and the heat exchange bodies inside the heat exchange ducts can maximize the heat exchange efficiency. The present invention does not impose any limitations on this.

[0079] Furthermore, the fan 32 is positioned at the upper right corner. To fully utilize this space, the fan 32 is vertically oriented. The central axis of the fan 32's air intake (i.e., the axis of the fan 32's impeller) extends horizontally along the transverse direction of the housing 1, perpendicular to the axis of the cylindrical module 2. The central axis of the fan 32's air exhaust (perpendicular to the axis of the fan 32's impeller) extends horizontally along the longitudinal direction of the housing 1, parallel to the axis of the cylindrical module 2. In other words, the extension direction of the central axis of the fan 32's air intake... The direction of extension of the central axis of the exhaust port of the fan 32 is the same as that of the first heat exchange duct 312. The direction of extension of the central axis of the exhaust port of the fan 32 is the same as that of the second heat exchange duct 331. The first drying duct 31 is connected to the air intake of the fan 32, and the second drying duct 33 is connected to the exhaust port of the fan 32. This makes the first drying duct 31 and the second drying duct 33 vertically distributed with the fan 32 as the center, which can maximize the use of the empty space between the box 1 and the cylinder module 2, so as to further ensure that the overall height of the washer-dryer remains unchanged.

[0080] Furthermore, the arrangement of the return air duct 311 and the outlet air duct 332 is also designed to fully utilize the space between the housing 1 and the cylindrical module 2. Specifically, for example... Figure 2 and Figure 3 As shown, both the return air duct 311 and the outlet air duct 332 are configured with a bent structure, and the surface near the cylindrical module 2 is a concave arc surface, which is adapted to the surface of the cylindrical module 2. Preferably, both the return air duct 311 and the outlet air duct 332 are made of flexible materials, such as rubber tubing.

[0081] 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 outlet air duct 332 are all spaced apart from the cylinder wall of the cylinder module 2 to ensure a safe distance from the cylinder module 2, thereby ensuring their normal operation.

[0082] Preferably, such as Figure 2 and Figure 3As shown, the first drying air duct 31 of the present invention further includes a first connecting air duct 313. The first end of the first connecting air duct 313 is connected to the first heat exchange air duct 312, and the second end of the first connecting air duct 313 is connected to the air intake of the fan 32. The diameter of the first connecting air duct 313 gradually narrows from the first end to the second end, so that air can be gathered to the air intake of the fan 32.

[0083] The first connecting air duct 313 extends in the same direction as 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 they can be integrated into one unit.

[0084] Preferably, such as Figure 2 and Figure 3 As shown, the second drying air duct 33 of the present invention further includes a second connecting air duct 333. The first end of the second connecting air duct 333 is connected to the exhaust port of the fan 32, and the second end of the second connecting air duct 333 is connected to the second heat exchange air duct 331. The diameter of the second connecting air duct 333 gradually widens from the first end to the second end, so that the air flowing out of the exhaust port of the fan 32 can diffuse into the second heat exchange air duct 331.

[0085] 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 they can be installed as a single unit.

[0086] Furthermore, such as Figure 3 As shown, the drying system of the present invention also includes a flow guiding structure 3331 disposed in the second drying air duct 33, the flow guiding structure 3331 being located upstream of the condenser 35.

[0087] For example, the flow guiding structure 3331 is disposed in the second connecting air duct 333. The flow guiding structure 3331 has the function of guiding air, so that the air flowing out of the exhaust port of the fan 32 can be evenly diffused into the second heat exchange air duct 331, thereby allowing the air to flow evenly through the condenser 35, avoiding the accumulation of air in a certain area of ​​the condenser 35, achieving uniform heat exchange and ensuring heat exchange efficiency.

[0088] Preferably, such as Figure 3 As shown, the flow guiding structure 3331 is configured as a plate-like structure.

[0089] The airflow guiding structure 3331 extends from the air inlet of the second connecting air duct 333 to the windward end of the condenser 35.

[0090] It should be noted that each flow guiding structure 3331 can be a curved plate-like structure or a straight plate-like structure.

[0091] Preferably, such as Figure 3 As shown, multiple flow guiding structures 3331 are provided in the second connecting air duct 333. The multiple flow guiding structures 3331 are distributed at intervals along the flow direction perpendicular to the airflow. The multiple flow guiding structures 3331 divide the interior of the second connecting air duct 333 into multiple flow guiding channels. The airflow flowing out of the exhaust port of the fan 32 can flow through each flow guiding channel and pass through the heat exchange body of the condenser 35 to achieve uniform heat exchange.

[0092] For example, such as Figure 3 As shown, there are two flow guiding structures 3331, which divide the interior of the second connecting air duct 333 into three flow guiding channels.

[0093] Preferably, such as Figure 3 As shown, the first drying air duct 31 of the present invention is provided with a fresh air inlet 3122, which is located between the evaporator 34 and the fan 32.

[0094] By setting a fresh air inlet 3122 on the first drying air duct 31, fresh air from the outside can be introduced during the drying process, which helps to improve 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 even more conducive to improving drying efficiency.

[0095] For example, such as Figure 1 As shown, the fresh air inlet 3122 is located on the first connecting air duct 313. Of course, those skilled in the art can also locate the fresh air inlet 3122 on the first heat exchange air duct 312.

[0096] Preferably, such as Figure 2 As shown, the second drying air duct 33 is provided with a fresh air outlet 3321, which is located downstream of the condenser 35.

[0097] After the clothes are washed, if the user does not take them out in time, the fan 32 can be turned on while the compressor does not start, so that the airflow circulates in the cylinder module 2 and the drying air duct. Fresh air continuously enters from the fresh air inlet 3122, and some airflow will be discharged from the fresh air outlet 3321 to avoid the danger of excessive air pressure in the cylinder module 2. In addition, by setting the fresh air outlet 3321 downstream of the condenser 35, wind resistance can be reduced and assembly can be facilitated.

[0098] Preferably, the washer-dryer combo of the present invention further includes an exhaust pipe (not shown in the figure) and an electrically controlled valve installed on the exhaust pipe. One end of the exhaust pipe is connected to the fresh air outlet 3321, and the other end of the exhaust pipe is connected to the outside of the housing 1. The electrically controlled valve is used to control the on / off state of the exhaust pipe.

[0099] By connecting the exhaust duct to the fresh air outlet 3321, the humid air discharged from the fresh air outlet 3321 can be directly guided to the outside of the housing 1, avoiding excessive humidity inside the housing 1. In addition, when exhaust is not required through the fresh air outlet 3321, the electric control valve is in the closed state.

[0100] Preferably, such as Figure 2 and Figure 1 As shown, the washer-dryer combo of the present invention also includes a filter device 4. At least a portion of the filter device 4 is installed in the drying air duct. The filter device 4 is used to filter the airflow in the drying air duct and filter out impurities such as lint carried by the airflow.

[0101] It should be noted that those skilled in the art can fix the filter device 4 inside the drying air duct, or insert the filter device 4 into the drying air duct by plugging it in, etc. Such adjustments and changes to the specific setting of the filter device 4 do not deviate from the principle and scope of the present invention, and should all be limited to the protection scope of the present invention.

[0102] Specifically, the filter device 4 is installed inside the first drying air duct 31 and is located upstream of the evaporator 34.

[0103] Preferably, such as Figure 2 As shown, a first insertion port 3121 is provided on the drying air duct, and a part of the filter device 4 extends into the drying air duct through the first insertion port 3121.

[0104] The first insertion interface 3121 is located in the first drying air duct 31, specifically, the first insertion interface 3121 is located in the first heat exchange air duct 312.

[0105] Preferably, such as Figures 1 to 5 and Figures 3 to 5 As shown, the housing 1 has a second connector 11 at a position corresponding to the first connector 3121, and the filter device 4 extends to the second connector 11.

[0106] When the filter device 4 needs to be cleaned, the user can pull the filter device 4 directly out from the second insertion port 11. After cleaning, the filter device 4 can then be inserted into the drying air duct by passing through the second insertion port 11 and the first insertion port 3121 in sequence.

[0107] Preferably, such as Figures 1 to 3As shown, the filter device 4 of the present invention includes a housing 43 and a filter assembly installed in the housing 43. The filter assembly is movable relative to the housing 43 along the length direction of the housing 43. The housing 43 is fixedly installed between the housing 1 and the first drying air duct 31. The two ends of the housing 43 are respectively connected to the first insertion interface 3121 and the second insertion interface 11. The first end of the filter assembly extends to the second insertion interface 11, and a part of the filter assembly passes through the first insertion interface 3121 and extends into the first drying air duct 31.

[0108] When the filter device 4 needs to be cleaned, simply pull out the filter assembly while keeping the outer casing 43 in place.

[0109] Preferably, such as Figures 4 to 7 As shown, the filter assembly of the present invention includes a first support 41, a second support 42, and a filter screen (not shown in the figure) mounted on the second support 42. The first support 41 and the second support 42 are distributed along the insertion direction, which is shown in the figure as being distributed along the length direction of the outer shell 43. The first end of the first support 41 extends to the second insertion interface 11. The second end of the first support 41 is detachably and fixedly connected to the first end of the second support 42. The second support 42 and the filter screen pass through the second insertion interface 11 and the first insertion interface 3121 in sequence and extend into the first drying air duct 31 and are located upstream of the evaporator 34.

[0110] The filter screen is used to filter the airflow in the first drying air duct 31, trapping impurities such as lint carried by the airflow. By providing insertion interfaces on the housing 1 and the first drying air duct 31, the filter assembly can be pulled out from the first drying air duct 31 and the housing 1 when cleaning is required. In addition, by making the first bracket 41 and the second bracket 42 detachably connected, after pulling out the first bracket 41, the first bracket 41 and the second bracket 42 can be separated, and then the second bracket 42 can be pulled out, which can reduce the required disassembly space, making it easier for users to disassemble and also making it easier to clean the filter screen on the second bracket 42. Furthermore, by connecting the two ends of the outer shell 43 to the first insertion interface 3121 and the second insertion interface 11 respectively, the filter assembly can be smoothly inserted into the first drying air duct 31 when installing, resulting in a better user experience.

[0111] For example, such as Figure 5 As shown, the first insertion interface 3121 is located on the side wall of the front panel of the first heat exchange air duct 312 facing the housing 1, and the second insertion interface 11 is located on the front panel of the housing 1. The extension direction of the filter component of the filter device 4 is parallel to the axis of the cylinder module 2. In this way, the user can pull out the filter component from the front of the washer-dryer combo, which is more convenient.

[0112] Preferably, such as Figure 6As shown, the filter device 4 of the present invention further includes a locking pin 44, which is mounted 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 and the second locking structure 4221 cooperate to lock the second bracket 42 and the first bracket 41. When the locking pin 44 is in the unlocked position, the first locking structure 441 and the second locking structure 4221 separate, so that the second bracket 42 and the first bracket 41 can be disassembled and separated.

[0113] For example, the first bracket 41 is provided with a vertically extending receiving cavity (not shown in the figure), the top of the receiving cavity is open, the locking pin 44 is installed in the receiving 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, which are distributed at intervals in the vertical direction. The second locking structure 4221 includes two locking holes provided at the ends of the second bracket 42, which are adapted to the locking hooks. A return spring (not shown in the figure) is installed between the bottom of the locking pin 44 and the receiving cavity. Under the action of the return 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 it is necessary to disassemble the two brackets, press the locking pin 44 down to separate the locking hooks from the locking holes, and the first bracket 41 and the second bracket 42 can be disassembled.

[0114] 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 opposing 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 invention and should be limited to the protection scope of the present invention.

[0115] Preferably, such as Figure 6 and Figure 7 As shown, the second support 42 includes a first filter frame 421 and a second filter frame 422. The first end of the first filter frame 421 and / or the second filter frame 422 is detachably and fixedly connected to the second end of the first support 41. The second end of the first filter frame 421 is pivotally connected to the second end of the second filter frame 422. The filter includes a first filter installed on the first filter frame 421 and a second filter installed on the second filter frame 422. The mesh count of the first filter is greater than that of the second filter. The first filter is located downstream of the second filter.

[0116] The first filter frame 421 and the second filter frame 422 are arranged side by side along the direction of airflow. The first filter frame 421 is located downstream of the second filter frame 422. The second filter and the first filter are arranged sequentially along the direction of airflow. The airflow first flows through the second filter for coarse filtration and then flows through the first filter for fine filtration, resulting in better filtration. In addition, by pivotally connecting the first filter frame 421 and the second filter frame 422, it is convenient to clean the first filter and the second filter.

[0117] For example, such as Figure 8 and Figure 9 As shown, the second locking structure 4221 is disposed at the first end of the second filter frame 422. The end face of the first bracket 41 near the second bracket 42 has a socket (not shown in the figure). The first end of the second filter frame 422 extends into the first bracket 41 through the socket. The second end of the first filter frame 421 does not pass through the socket. The second end of the first filter frame 421 is located outside the first bracket 41, that is, the length of the first filter frame 421 is less than the length of the second filter frame 422.

[0118] It should be noted that, in practical applications, those skilled in the art may also make the first end of the first filter frame 421 detachably and fixedly connected to the first bracket 41, or make the first ends of both the first filter frame 421 and the second filter frame 422 detachably and fixedly connected to the second end of the first bracket 41.

[0119] Preferably, such as Figure 8 and Figure 9 As shown, the second end of the first filter frame 421 of the present invention is provided with a cylindrical structure 4211, and both ends of the cylindrical structure 4211 are provided with a first connecting structure 4212. The second filter frame 422 is provided with a second connecting structure 4222 at a position corresponding to the first connecting structure 4212. The first filter frame 421 and the second filter frame 422 are pivotally connected through the first connecting structure 4212 and the second connecting structure 4222. The second filter frame 422 is provided with an arc surface 4223 adapted to the cylindrical structure 4211 at a position corresponding to the cylindrical structure 4211. The cylindrical structure 4211 and the arc surface 4223 are in contact.

[0120] By fitting the cylindrical structure 4211 on the first filter frame 421 with the arc surface 4223 on the second filter frame 422, it is more effective in blocking impurities such as lint and improving the filtration effect.

[0121] For example, the first connecting structure 4212 is a connecting shaft, and a connecting shaft is provided at the top and bottom of the cylindrical structure 4211. The second connecting structure 4222 is a connecting hole, and the two connecting shafts are located in the corresponding connecting holes and can rotate in the connecting holes to realize the pivotal connection between the first filter frame 421 and the second filter frame 422.

[0122] It should be noted that, in practical applications, those skilled in the art may also configure the first connecting structure 4212 as a connecting hole, and correspondingly configure the second connecting structure 4222 as a connecting shaft.

[0123] Preferably, such as Figure 8 and Figure 9 As shown, the second filter frame 422 has a receiving cavity 4224, and the first filter frame 421 is located inside the receiving cavity 4224. That is, the first filter frame 421 is embedded in the receiving cavity 4224.

[0124] It should be noted that those skilled in the art can make the entire first filter frame 421 located within the receiving cavity 4224 on the second filter frame 422, or they can make only the portion of the first filter frame 421 with the first filter located within the receiving cavity 4224 on the second filter frame 422, etc. Such flexible adjustments and changes do not deviate from the principles and scope of the present invention and should all be limited to the protection scope of the present invention.

[0125] Preferably, such as Figure 8 and Figure 10 As shown, the first filter frame 421 is provided with a strip-shaped rib 4213 extending along its length direction, and the strip-shaped rib 4213 fits against the inner wall of the receiving cavity 4224.

[0126] By providing strip-shaped ribs 4213 on the first filter frame 421 that fit against the inner wall of the receiving cavity 4224 on the second filter frame 422, it is more effective in blocking impurities such as lint and further improving the filtration effect.

[0127] For example, such as Figure 10 As shown, a strip-shaped rib 4213 is provided at the top of the first filter frame 421. It should be noted that a strip-shaped rib 4213 can also be provided at the bottom of the first filter frame 421.

[0128] Furthermore, it should be noted that those skilled in the art may omit the outer casing 43 or the first bracket 41 in practical applications. In this case, the second bracket 42 and the filter can be inserted into the drying duct from the rear or top of the housing 1. Alternatively, both the first bracket 41 and the second bracket 42 can be removed. In this case, the filter can be directly fixed in the drying duct. These sub-preferred embodiments are also within the protection scope of the present invention.

[0129] Preferably, such as Figure 10 As shown, the filtration device of the present invention further includes a third filter screen 46, which is installed in the air inlet or air outlet of the drying air duct, and the mesh number of the third filter screen 46 is smaller than that of the second filter screen.

[0130] In other words, the third filter 46 is located upstream of the second filter. The airflow coming out of the cylindrical module 2 flows through the third filter 46, the second filter and the first filter in sequence, and the mesh count of the third filter 46, the second filter and the first filter increases in sequence.

[0131] The first filter screen has a mesh size greater than 80 and not greater than 160, the second filter screen has a mesh size greater than 40 and less than 80, and the third filter screen 46 has a mesh size not less than 10 and not greater than 40. For example, the first filter screen has a mesh size of 150, the second filter screen has a mesh size of 60, and the third filter screen 46 has a mesh size of 30.

[0132] It should be noted that the third filter 46 can be installed inside the air outlet of the cylindrical module 2, or the third filter 46 can be installed at the air inlet of the drying air duct, specifically at the air inlet of the first drying air duct 31, or more specifically at the air inlet of the return air duct 311.

[0133] Preferably, such as Figure 10 As shown, the filter surface of the third filter 46 is either flat or protrudes downstream of the third filter 46.

[0134] The above settings can prevent lint from accumulating downstream of the third filter 46.

[0135] The filter surface of the third filter 46 can be set to a flat surface, or it can be set to bulge towards the downstream of the third filter 46, such as an arched surface.

[0136] Preferably, such as Figure 10 As shown, the filtration device of the present invention further includes an annular support 47, which is detachably and fixedly connected to the drying air duct or cylinder module, and the third filter screen 46 is installed on the annular support 47.

[0137] By installing the third filter 46 on the annular bracket 47 and detachably fixing the annular bracket 47 to the drying air duct or cylinder module, it is easy to remove the third filter 46 for cleaning.

[0138] Taking the installation of the annular bracket 47 inside the air outlet of the cylindrical module 2 as an example, the annular bracket 47 can be directly inserted into the air outlet from the inside or outside of the cylindrical module 2, and the shape of the annular bracket 47 matches the shape of the air outlet.

[0139] Preferably, such as Figures 11 to 14 As shown, the annular bracket 47 has a support rib 471 at the position where the third filter screen 46 is set.

[0140] By setting a support rib 471 at the location where the third filter 46 is set, the flatness of the third filter 46 can be improved, thus ensuring the filtration effect.

[0141] Preferably, such asFigures 11 to 14 As shown, the support rib 471 is provided with a protruding structure 472 extending along the axial direction of the annular bracket 47.

[0142] By providing a protruding structure 472 on the support rib 471, it is easier to install and disassemble the ring bracket 47. Specifically, when installing and disassembling the ring bracket 47, the user can pinch the protruding structure 472 by hand, which is more convenient.

[0143] It should be noted that those skilled in the art can set the protruding structure 472 as plate-shaped, column-shaped, or block-shaped, etc. Such adjustments and changes to the specific shape of the protruding structure 472 do not deviate from the principles and scope of the present invention and should be limited to the protection scope of the present invention.

[0144] Preferably, such as Figures 11 to 13 As shown, the washer-dryer combo of the present invention also includes a rinsing device, which is capable of rinsing the first filter, the second filter and / or the third filter 46.

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

[0146] By installing a rinsing device, each filter screen can be rinsed regularly, preventing lint from being left unattended. In addition, it can reduce the number of times users need to disassemble and clean the filters, thus improving the user experience.

[0147] Preferably, such as Figures 11 to 13 As shown, the rinsing device of the present invention includes a first rinsing mechanism and a second rinsing mechanism. The first rinsing mechanism is capable of rinsing the first filter screen and / or the second filter screen, and the second rinsing mechanism is capable of rinsing the third filter screen 46.

[0148] By setting up two rinsing mechanisms, it is easy to control them independently according to the amount of wire debris on each filter screen. The first and second rinsing mechanisms can be connected to the same water source, or they can each be equipped with an independent water source.

[0149] Preferably, such as Figures 11 to 13 As shown, the first rinsing mechanism includes a water spray chamber and a filter rinsing channel disposed on the drying air duct. The water spray chamber is located above the first filter and / or the second filter and extends along the length of the first filter and / or the second filter. The top end of the filter rinsing channel is connected to the water spray chamber, and the bottom end of the filter rinsing channel faces the first filter and / or the second filter.

[0150] The spray chamber and filter rinsing channel are located at the top of the first heat exchange duct 312 of the first drying duct 31. The spray chamber is elongated and located above the second support 42 of the filtration device. The spray chamber is connected to a water source. When it is necessary to clean the first filter and / or the second filter, water is supplied to the spray chamber through the water source, and the water in the spray chamber is sprayed onto the first filter and / or the second filter through the filter rinsing channel. The water source can be a water storage tank installed inside the washer-dryer. A water pump is installed inside the water tank, and the outlet of the water pump is connected to the spray chamber of the first rinsing mechanism through a water pipe.

[0151] 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 air duct. The drain outlet is connected to a water drain pipe. When cleaning the filter and / or evaporator, water and lint can enter the drain pipe through the drain outlet and be discharged.

[0152] Furthermore, it should be noted that those skilled in the art can integrate the first rinsing mechanism with the drying duct, or they can set the first rinsing mechanism as an independent component and then fix it on the drying duct, etc. Such flexible adjustments and changes do not deviate from the principles and scope of the present invention and should all be limited to the protection scope of the present invention.

[0153] It should be noted that the present invention does not limit the shape of the rinsing filter channel. For example, those skilled in the art can set the rinsing filter channel as an integral, elongated channel extending along the length of the spray chamber, or the rinsing filter channel can be set as a channel including multiple cylindrical shapes, etc.

[0154] Furthermore, it should be noted that in practical applications, those skilled in the art can configure the first rinsing mechanism to spray water only toward the first filter screen, or to spray water only toward the second filter screen, or to spray water toward both the first and second filter screens.

[0155] Preferably, such as Figures 11 to 13 As shown, the rinsing filter channel includes a first rinsing filter channel 53 and a second rinsing filter channel 54. 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 rinsing filter channel 53 is connected to the first water spray chamber 51, and the bottom end of the first rinsing filter channel 53 faces the first filter. The top end of the second rinsing filter channel 54 is connected to the second water spray chamber 52, and the bottom end of the second rinsing filter channel 54 faces the second filter.

[0156] In other words, the first water spray chamber 51 and the second water spray chamber 52 are not connected, so that the first flushing filter channel 53 and the second flushing filter channel 54 can spray water independently.

[0157] For example, the spray chamber is provided with a partition structure 58, which divides the spray chamber into a first spray chamber 51 and a second spray chamber 52. The first spray chamber 51 and the second spray chamber 52 are distributed along the width direction of the spray chamber. The first spray chamber 51 and the second spray chamber 52 are respectively connected to a first water inlet connector 56 and a second water inlet connector 57. The first water inlet connector 56 and the second water inlet connector 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, which are used to control the on / off state of the first water inlet pipe and the second water inlet pipe, respectively. The first rinsing filter screen channel 53 is located downstream of the first filter screen and is mainly used for rinsing the first filter screen. The second rinsing filter screen channel 54 is located upstream of the second filter screen and is mainly used for rinsing the second filter screen.

[0158] It should be noted that those skilled in the art can also set the first water spray chamber 51 and the second water spray chamber 52 as two completely independent ones. In addition, the first water spray chamber 51 and the second water spray chamber 52 can be configured with a water source respectively, or the same water source can be used and each can be configured with an independent water pump, etc. Such flexible adjustments and changes do not deviate from the principle and scope of the present invention and should be limited to the protection scope of the present invention.

[0159] 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 at the top of the water spray chamber is not shown in the diagram. Furthermore, the first drying air duct 31 consists of an upper part and a lower part, with the first rinsing mechanism located in the upper part. Figures 11 to 13 Only the upper part of the first drying air duct 31 is shown in the figure. It should be noted that the upper and lower parts of the first drying air duct 31 can be fixedly connected by fasteners such as screws, or they can be set as an integral structure.

[0160] Preferably, such as Figures 11 to 13 As shown, the first flushing filter channel 53 is cylindrical and there are multiple channels, which are distributed at intervals along the length of the first spray chamber 51.

[0161] In other words, multiple first flushing filter channels 53 are distributed at intervals along the length of the first water spray chamber 51, and the first flushing filter channels 53 are cylindrical.

[0162] The cross-section of the first rinsing filter channel 53 can be set to be circular, square, rectangular, or elliptical, etc.

[0163] Preferably, such as Figures 11 to 13 As shown, the second flushing filter channel 54 is cylindrical and there are multiple channels, which are distributed at intervals along the length of the second spray chamber 52.

[0164] In other words, multiple second flushing filter channels 54 are distributed at intervals along the length of the second water spray chamber 52, and the second flushing filter channels 54 are cylindrical.

[0165] The cross-section of the second rinsing filter channel 54 can be set to be circular, square, rectangular, or elliptical, etc.

[0166] Preferably, such as Figures 11 to 13 As shown, the cross-sectional area of ​​the rinsing filter channel gradually decreases in the direction away from its top.

[0167] In other words, the cross-sectional area of ​​the rinsing filter channel gradually decreases from the top to the bottom, which increases the jet speed of the water flow and thus improves the cleaning effect of the first rinsing mechanism.

[0168] It should be noted that when the rinsing filter channel includes a first rinsing filter channel 53 and a second rinsing filter channel 54, the cross-sectional area of ​​the first rinsing filter channel 53 may be gradually reduced only in the direction away from its top, or the cross-sectional area of ​​the second rinsing filter channel 54 may be gradually reduced only in the direction away from its top, or both the cross-sectional areas of the first rinsing filter channel 53 and the second rinsing filter channel 54 may be gradually reduced in the direction away from their tops.

[0169] Preferably, such as Figures 11 to 13 As shown, the angle between the extension line of the rinsing filter channel and the filter surface of the first filter and / or the second filter is no greater than 10°.

[0170] For example, the first filter screen and / or the second filter screen are vertically arranged, and the filter screen surface is also vertical. The angle between the extension line of the rinsing filter screen channel and the filter screen surface is the angle between the extension line of the rinsing filter screen channel and the vertical plane. By limiting this angle, the cleaning area of ​​the first rinsing mechanism can be guaranteed. The smaller the angle, the larger the cleaning area of ​​the first rinsing mechanism.

[0171] For example, those skilled in the art can set the angle between the extension line of the rinsing filter channel and the filter surface of the filter device to 1°, 2°, 3°, 4°, 5°, 6°, 7°, 8°, 9°, or 10°. More preferably, the angle between the extension line of the rinsing filter channel and the vertical plane is no greater than 5°.

[0172] It should be noted that, in the case where the rinsing filter channel includes a first rinsing filter channel 53 and a second rinsing filter channel 54, the angle between the extension line of the first rinsing filter channel 53 and the filter surface of the filter device may be no greater than 10°, or the angle between the extension line of the second rinsing filter channel 54 and the filter surface of the filter device may be no greater than 10°, or the angle between the extension line of the first rinsing filter channel 53 and the extension line of the second rinsing filter channel 54 and the filter surface of the filter device may be no greater than 10°.

[0173] Preferably, such as Figures 11 to 13 As shown, the first rinsing mechanism also includes a rinsing evaporator channel 55 disposed on the drying air duct. The top end of the rinsing evaporator channel 55 is connected to the water spray chamber, and the bottom end of the rinsing evaporator channel 55 faces the windward side of the evaporator 34.

[0174] The top of the evaporator flushing channel 55 is connected to the first water spray chamber 51.

[0175] The windward side of evaporator 34 is the upstream end face of evaporator 34.

[0176] Preferably, such as Figure 2 As shown, the angle between the extension line of the evaporator flushing channel 55 and the windward side of the evaporator is no greater than 10°.

[0177] For example, the windward side of the evaporator is vertically arranged, and the angle between the extension line of the evaporator flushing channel 55 and the windward side is the same as the angle between the extension line of the evaporator flushing channel 55 and the vertical plane. By limiting this angle, the cleaning area of ​​the first flushing mechanism can be guaranteed. The smaller the angle, the larger the cleaning area of ​​the first flushing mechanism.

[0178] For example, those skilled in the art can set the angle between the extension line of the evaporator flushing channel 55 and the windward side of the evaporator to 1°, 2°, 3°, 4°, 5°, 6°, 7°, 8°, 9°, or 10°. More preferably, the angle between the extension line of the evaporator flushing channel 55 and the vertical plane is no greater than 5°.

[0179] Preferably, such as Figure 14 As shown, the flushing evaporator channels 55 are cylindrical and there are multiple channels, which are distributed at intervals along the length of the spray chamber.

[0180] In other words, multiple evaporator flushing channels 55 are distributed at intervals along the length of the first water spray chamber 51, and the evaporator flushing channels 55 are cylindrical.

[0181] The cross-section of the evaporator flushing channel 55 can be set to be circular, square, rectangular, or elliptical, etc.

[0182] Preferably, such as​ As shown, the cross-sectional area of ​​the flushing evaporator channel 55 gradually decreases in the direction away from its top.

[0183] In other words, the cross-sectional area of ​​the evaporator flushing channel 55 gradually decreases from the top to the bottom, which increases the jet speed of the water flow and thus improves the cleaning effect of the first flushing mechanism.

[0184] Preferably, such as ​ and ​ As shown, the second rinsing mechanism includes a spray pipe 6, which has a water inlet 61 and a spray nozzle 62. The spray pipe 6 is installed on the drying air duct, and the spray nozzle 62 is located inside the drying air duct and faces the third filter screen 46.

[0185] For example, the spray pipe 6 is fixedly installed on the return air duct 311 of the first drying air duct 31. The water inlet 61 of the spray pipe 6 is connected to the water source through the pipeline. When it is necessary to rinse the third filter screen 46, the water source supplies water to the spray pipe 6, and the water is sprayed onto the third filter screen 46 through the spray nozzle 62.

[0186] Those skilled in the art will understand that although some embodiments described herein include certain features included in other embodiments but not others, combinations of features from different embodiments are intended to be within the scope of this application and form different embodiments. For example, any of the claimed embodiments in the claims of this application can be used in any combination.

[0187] The technical solution of the present invention has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles 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 such changes or substitutions will all fall within the scope of protection of the present invention.

Claims

1. A drying device, characterized in that, include: A cylindrical module, wherein the cylindrical module is provided with an air inlet and an air outlet; A drying air duct, wherein both ends of the drying air duct are connected to the air inlet and the air outlet, respectively; A heat pump module, comprising an evaporator and a condenser installed within the drying duct, wherein the evaporator is located upstream of the condenser; A filtration device, comprising a first filter, a second filter, and a third filter, wherein the first filter and the second filter are installed in the drying duct and the first filter is located downstream of the second filter, the first filter is located upstream of the evaporator, and the third filter is installed in the air inlet or the air outlet of the drying duct, wherein the mesh size of the first filter is greater than that of the second filter, and the mesh size of the second filter is greater than that of the third filter; as well as A rinsing device capable of rinsing the first filter screen, the second filter screen, and / or the third filter screen.

2. The drying equipment according to claim 1, characterized in that, The rinsing device includes a first rinsing mechanism and a second rinsing mechanism. The first rinsing mechanism is capable of rinsing the first filter screen and / or the second filter screen, and the second rinsing mechanism is capable of rinsing the third filter screen.

3. The drying equipment according to claim 2, characterized in that, The first rinsing mechanism includes a water spray chamber and a filter rinsing channel disposed on the drying air duct. The water spray chamber is located above the first filter and / or the second filter and extends along the length of the first filter and / or the second filter. The top end of the filter rinsing channel communicates with the water spray chamber, and the bottom end of the filter rinsing channel faces the first filter and / or the second filter.

4. The drying equipment according to claim 3, characterized in that, The rinsing filter channel includes a first rinsing filter channel and a second rinsing filter channel. The spray chamber includes a separated first spray chamber and a second spray chamber. The top end of the first rinsing filter channel communicates with the first spray chamber, and the bottom end of the first rinsing filter channel faces the first filter. The top end of the second rinsing filter channel communicates with the second spray chamber, and the bottom end of the second rinsing filter channel faces the second filter; and / or The first rinsing mechanism further includes a rinsing evaporator channel disposed on the drying air duct, the top end of the rinsing evaporator channel being connected to the water spray chamber, and the bottom end of the rinsing evaporator channel facing the windward side of the evaporator.

5. The drying equipment according to claim 1, characterized in that, The filtration device further includes a first bracket and a second bracket. The first filter and the second filter are both installed on the second bracket. The drying duct is provided with a first insertion interface. The housing of the drying equipment is provided with a second insertion interface at a position corresponding to the first insertion interface. The first end of the first bracket extends to the second insertion interface. The second end of the first bracket is detachably and fixedly connected to the first end of the second bracket. The second bracket, the first filter, and the second filter pass through the second insertion interface and the first insertion interface in sequence and extend into the drying duct.

6. The drying equipment according to claim 5, characterized in that, The second support includes a first filter frame and a second filter frame. The second end of the first filter frame has a cylindrical structure, and both ends of the cylindrical structure are provided with connecting shafts. The second filter frame has an arc surface that is adapted to the cylindrical structure at a position corresponding to the cylindrical structure. The second filter frame has a connecting hole at a position corresponding to the connecting shaft. The connecting shaft is located in the connecting hole and can rotate within the connecting hole. The cylindrical structure fits into the arc surface. The first end of the first filter frame and / or the second filter frame is detachably and fixedly connected to the first support. The first filter and the second filter are respectively installed on the first filter frame and the second filter frame.

7. The drying equipment according to claim 1, characterized in that, The second filter frame is provided with a receiving cavity, and the first filter frame is located in the receiving cavity. The first filter frame is provided with strip-shaped ribs extending along its length direction, and the strip-shaped ribs are in contact with the inner wall of the receiving cavity.

8. The drying equipment according to claim 2, characterized in that, The filtration device also includes an annular support, which is detachably and fixedly connected to the drying duct or the cylindrical module, and the third filter screen is installed on the annular support.

9. The drying equipment according to claim 2, characterized in that, The second rinsing mechanism includes a spray pipe having a water inlet and a spray nozzle. The spray pipe is installed on the drying duct, and the spray nozzle is located inside the drying duct and faces the third filter.

10. The drying apparatus 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 cylindrical module. The first drying air duct and the second drying air duct are respectively connected to the air intake and air exhaust 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, the first filter screen and the second filter screen are arranged in the first drying air duct, and 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.

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