Drying system of drying equipment and drying equipment

Abstract

The utility model relates to the technical field of clothes processing equipment, in particular to a drying system of drying equipment and the drying equipment, specifically, the drying system comprises a first drying air duct and a fan, the first drying air duct is provided with a first connecting structure, the fan is provided with a second connecting structure, and the first connecting structure is connected with the second connecting structure. The first connecting structure is provided with a through hole and a plurality of first connecting holes, the fan is provided with a plurality of second connecting holes, and the distance between at least one of the first connecting holes and the circle center of the through hole is larger than or smaller than the distance between the other first connecting holes and the circle center of the through hole. The distance between at least one of the second connecting holes and the circle center of the air suction opening is larger than or smaller than the distance between the other second connecting holes and the circle center of the air suction opening. Through the arrangement, the first connecting hole can only be connected with the designed corresponding second connecting hole, the situation of assembly errors is avoided, and therefore the assembly accuracy and the assembly efficiency are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of clothing processing equipment, and specifically provides a drying system and drying equipment for a drying device. 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 for the dryer, it is inseparable from the drying duct and fan during the drying process, and the drying duct is fixedly connected to the fan.

[0004] In the prior art, connection holes are generally provided on the drying air duct and the fan, and then fixedly connected by screws. However, since each connection hole is the same, assembly errors are prone to occur.

[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 the drying air duct and the fan of the existing drying equipment are prone to assembly errors during assembly.

[0007] In a first aspect, the utility model provides a drying system of a drying equipment, the drying system comprising a first drying air duct and a fan, the first drying air duct is provided with a first connecting structure, the fan is provided with a second connecting structure, the first connecting structure is provided with a through hole and a first connecting hole, the through hole is connected to the air suction port of the fan, the number of the first connecting holes is multiple and they are spaced around the through hole, the fan is provided with a second connecting hole, the number of the second connecting holes is multiple and they are spaced around the air suction port, the first connecting hole corresponds to the second connecting hole one by one, at least one of the multiple first connecting holes has a distance between the center of the through hole that is greater than or less than the distance between the other first connecting holes and the center of the through hole, and at least one of the multiple second connecting holes has a distance between the center of the suction port that is greater than or less than the distance between the other second connecting holes and the center of the suction port.

[0008] In the preferred technical solution of the drying system of the above-mentioned drying equipment, a first error-proofing structure is provided on the first connecting structure, and a second error-proofing structure is provided on the fan, and the first error-proofing structure cooperates with the second error-proofing structure.

[0009] In the preferred technical solution of the drying system of the above-mentioned drying equipment, a plurality of accommodating cavities are provided on the first connecting structure, the first connecting holes are located in the accommodating cavities, the second connecting structure includes a plurality of connecting ears, the second connecting holes are provided in the connecting ears, and the connecting ears are inserted into the corresponding accommodating cavities.

[0010] In a preferred technical solution of the drying system of the above-mentioned drying equipment, the drying system further includes a second drying air duct, the second drying air duct is connected to the exhaust port of the fan, and the second drying air duct and the first drying air duct are arranged in an L shape.

[0011] In the preferred technical solution of the drying system of the above-mentioned drying equipment, the drying system also includes a heat pump module, the heat pump module includes an evaporator arranged in the first drying air duct and a condenser arranged in the second drying air duct, and the first drying air duct is provided with a fresh air inlet, and the fresh air inlet is located between the evaporator and the fan.

[0012] In a preferred technical solution of the drying system of the above-mentioned drying equipment, a fresh air outlet is provided on the second drying air duct, and the fresh air outlet is located downstream of the condenser.

[0013] In a preferred technical solution of the drying system of the above-mentioned drying equipment, the first error-proofing structure is a hole structure, the second error-proofing structure is a column structure, and the hole structure is compatible with the column structure.

[0014] In a preferred technical solution of the drying system of the above-mentioned drying equipment, a first plug interface is provided on the first drying air duct, and the drying system also includes a filtering device, the filtering device includes a first bracket and a second bracket distributed along an insertion direction and a filter screen arranged on the second bracket, and the housing of the drying equipment is provided with a second plug interface at a position corresponding to the first plug interface, the first end of the first bracket extends to the second plug interface, the second end of the first bracket is detachably fixedly connected to the first end of the second bracket, and the second bracket and the filter screen pass through the second plug interface and the first plug interface in turn and extend into the first drying air duct.

[0015] In the preferred technical solution of the drying system of the above-mentioned drying equipment, the filtering device also includes a locking pin, which is installed on the first bracket, and a first locking structure is provided on the locking pin, and a second locking structure is provided on the second bracket. When the locking pin is in the locking position, the first locking structure cooperates with the second locking structure to lock the second bracket with the first bracket, and when the locking pin is in the unlocking position, the first locking structure is separated from the second locking structure so as to disassemble and separate the second bracket from the first bracket.

[0016] In a second aspect, the utility model also provides a drying device, comprising the above-mentioned drying system.

[0017] When adopting the above-mentioned technical solution, the utility model makes at least one first connection hole among the multiple first connection holes on the first drying air duct different from the other first connection holes, and correspondingly makes at least one second connection hole among the multiple second connection holes on the fan different from the other second connection holes. In this way, the first connection hole can only be connected to the second connection hole corresponding to the design, which is beneficial to avoid assembly errors, thereby improving the accuracy and efficiency of assembly.

[0018] Furthermore, the utility model is more conducive to avoiding the occurrence of assembly errors by arranging the first error-proofing structure and the second error-proofing structure on the first connection structure and the fan respectively for coordination.

[0019] Furthermore, the utility model provides an accommodating cavity on the first connecting structure that can accommodate the connecting ear provided on the fan, which is beneficial to improving the assembly efficiency.

[0020] Furthermore, the utility model arranges a fresh air inlet on the first drying air duct, and can introduce external dry fresh air during the drying process, which is beneficial to improving the drying efficiency. In addition, by arranging the fresh air inlet between the evaporator and the fan, more fresh air can be introduced, and the temperature of the incoming fresh air will not be affected by the temperature of the evaporator, which is more conducive to improving the drying efficiency.

[0021] Furthermore, the utility model can reduce the required disassembly space and facilitate the cleaning of the filter screen on the second bracket by arranging the first bracket and the second bracket of the filter device to be detachable. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings, in which:

[0023] Figure 1 This is a schematic diagram of the overall structure of the washer-dryer of the utility model; (the top plate of the box is omitted)

[0024] Figure 2 This is a schematic diagram of the structure of the drying system in the washing and drying machine of the utility model. Figure 1 ;

[0025] Figure 3 This is a schematic diagram of the structure of the drying system in the washing and drying machine of the utility model. Figure 2 ;

[0026] Figure 4 It is a structural schematic diagram of the first drying air duct in the integrated washer-dryer of the utility model;

[0027] Figure 5 It is a structural schematic diagram of the fan in the integrated washer-dryer of the utility model;

[0028] Figure 6 It is a structural schematic diagram of a filter device in a washing and drying machine of the utility model;

[0029] Figure 7 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;

[0030] Figure 8 It is a structural schematic diagram of the second bracket and the locking pin in the integrated washer-dryer of the utility model;

[0031] Fig. 9 It is a structural schematic diagram of a locking pin of a filter device in a washer-dryer of the utility model.

[0032] List of reference numerals:

[0033] 1. Box body; 11. Second plug interface;

[0034] 2. Cylinder module;

[0035] 31. first drying air duct; 311. return air duct; 312. first heat exchange air duct; 313. first connecting air duct; 314. first connecting structure; 3121. first plug interface; 3131. fresh air inlet; 3132. avoidance groove; 3141. first connecting hole; 3142. through hole; 3143. accommodating cavity; 3144. first error-proofing structure;

[0036] 32. fan; 321. volute; 322. impeller; 323. connecting ear; 3211. air inlet; 3212. air outlet; 3213. second error-proofing structure; 3231. second connecting hole;

[0037] 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;

[0038] 34. Evaporator; 35. Condenser;

[0039] 4. Filter device; 41. First bracket; 42. Second bracket; 43. Housing; 44. Lock pin; 45. Elastic sealing member; 441. First locking structure; 421. First filter frame; 422. Second filter frame; 4221. Second locking structure. DETAILED DESCRIPTION

[0040] 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.

[0041] It should be noted that in the description of the present invention, the terms "upper", "lower", "front", "back", "left", "right", "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 limiting the present invention. In addition, ordinal numbers such as "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0042] 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.

[0043] like Figures 1 to 3 As shown, the washer-dryer of the present invention comprises a housing 1, a drum module 2 and a drying system arranged in the housing 1. The drying system can supply hot air into the drum module 2 to dry the clothes.

[0044] 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 2 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 34 and a condenser 35 installed in the drying air 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 air duct and the drum module 2, and exchange heat with the evaporator 34 and the condenser 35 when flowing through the evaporator 34 and the condenser 35.

[0045] Preferably, if Figures 1 to 3As 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.

[0046] 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 air flow, 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 further drying the clothes.

[0047] It should be noted that the drying air duct of the utility model 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 32 can be installed on one of the air outlet and the air inlet of the drum module 2, and then the fan 32 is connected to the other air outlet through the drying air duct. Of course, the utility model preferably sets the drying air duct as the first drying air duct 31 and the second drying air duct 33 described above, and the fan 32 is set between the first drying air duct 31 and the second drying air duct 33.

[0048] 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.

[0049] 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 .

[0050] Preferably, if Figures 1 to 3 As shown, the first drying air duct 31 and the second drying air duct 33 are arranged in an L shape.

[0051] 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 .

[0052] 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.

[0053] 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.

[0054] The return air duct 311 and the first heat exchange air duct 312 are preferably configured to be detachably fixedly connected.

[0055] 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.

[0056] The second heat exchange air duct 331 and the air outlet air duct 332 are preferably configured to be detachably fixedly connected.

[0057] 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, or, a separate air port may be opened above the front end of the drum module 2 as an air inlet, and so on. 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.

[0058] 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 3211 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 3211 of the fan 32.

[0059] 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.

[0060] 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 communicated with the exhaust port 3212 of the fan 32, and a second end of the second connecting air duct 333 is communicated with the second heat exchange air duct 331. The caliber of the second connecting air duct 333 is gradually widened 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 through the exhaust port 3212 of the fan 32 can diffuse into the second heat exchange air duct 331.

[0061] 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.

[0062] Preferably, if Figure 4 and Figure 5 As shown, a first connecting structure 314 is provided on the first drying air duct 31, a second connecting structure is provided on the fan 32, a first connecting hole 3141 is provided on the first connecting structure 314, a second connecting hole 3231 is provided on the second connecting structure, and the first connecting hole 3141 and the second connecting hole 3231 are connected by fasteners (such as screws or bolts, etc.).

[0063] Among them, the first connecting structure 314 is arranged at the end of the first connecting air duct 313, and the first connecting structure 314 is integrally arranged with the first connecting air duct 313. The fan 32 includes a volute 321 and an impeller 322 installed in the volute 321. The air intake port 3211 and the air exhaust port 3212 are both arranged on the volute 321. The second connecting structure is also arranged on the volute 321. The first connecting hole 3141 is a smooth hole, and the second connecting hole 3231 is provided with a thread. The fastener is a screw, and one end of the screw passes through the first connecting hole 3141 and penetrates into the second connecting hole 3231 to fix the first connecting air duct 313 of the first drying air duct 31 with the volute 321 of the fan 32.

[0064] It should be noted that, in actual applications, those skilled in the art may also set threads in the first connecting hole 3141, or may also set the second connecting hole 3231 as a smooth hole and adopt bolt connection, 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.

[0065] Preferably, if Figure 4 As shown, the first drying air duct 31 is provided with an avoidance groove 3132 at a position corresponding to the first connecting hole 3141 .

[0066] By providing the avoidance groove 3132 at a position corresponding to the first connecting hole 3141 , it is convenient to install and remove the fastener (such as a screw or a bolt, etc.) installed in the first connecting hole 3141 .

[0067] Exemplarily, the avoidance groove 3132 is disposed on the first connecting air duct 313 , and is formed by the top of the first connecting air duct 313 being recessed inwardly.

[0068] Preferably, if Figure 4 and Figure 5 As shown, the first connecting structure 314 is also provided with a through hole 3142, which is connected to the air suction port 3211 of the fan 32. The number of the first connecting holes 3141 is multiple and is distributed at intervals around the through hole 3142. The number of the second connecting holes 3231 is multiple and is distributed at intervals around the air suction port 3211. The first connecting holes 3141 correspond to the second connecting holes 3231 one by one.

[0069] Exemplarily, the number of the first connection hole 3141 and the number of the second connection holes 3231 are both three, one is located at the top, and the other two are located at the lower left and lower right respectively, and the avoidance groove 3132 corresponds to the first connection hole 3141 located at the top.

[0070] Preferably, if Figure 4 and Figure 5As shown, the distance between at least one first connection hole 3141 among the multiple first connection holes 3141 and the center of the through hole 3142 is greater than or less than the distance between the center of the remaining first connection holes 3141 and the through hole 3142, and the distance between at least one second connection hole 3231 among the multiple second connection holes 3231 and the center of the air suction port 3211 is greater than or less than the distance between the center of the remaining second connection holes 3231 and the air suction port 3211.

[0071] That is to say, the distances between the centers of the first connection hole 3141 and the through hole 3142 are not all the same, and the distances between the centers of the second connection hole 3231 and the air inlet 3211 are not all the same, which is conducive to ensuring the accuracy of assembly and avoiding assembly errors. For example, after assembly, the exhaust port 3212 of the fan 32 is required to face the right side of the first drying air duct 31. Through the above-mentioned setting, it is possible to avoid the exhaust port 3212 of the fan 32 facing the left side, top, and bottom of the first drying air duct 31.

[0072] Exemplarily, the number of first connection holes 3141 is three, one of which is located at the top, and the other two are located at the lower left and lower right, respectively; the distance between the first connection hole 3141 located at the top and the center of the through hole 3142 is greater than the distance between the other two first connection holes 3141 and the center of the through hole 3142; the lines connecting the three first connection holes 3141 form an isosceles triangle; the number of second connection holes 3231 is also three, one of which is located at the top, and the other two are located at the lower left and lower right, respectively; the distance between the second connection hole 3231 located at the top and the center of the air suction port 3211 is greater than the distance between the other two second connection holes 3231 and the center of the air suction port 3211; the lines connecting the three second connection holes 3231 also form an isosceles triangle.

[0073] Preferably, if Figure 4 and Figure 5 As shown, the first connection structure 314 is provided with a plurality of accommodating cavities 3143 , the first connection holes 3141 are located in the accommodating cavities 3143 , the second connection structure includes a plurality of connection ears 323 , the second connection holes 3231 are provided in the connection ears 323 , and the connection ears 323 are inserted into the corresponding accommodating cavities 3143 .

[0074] Exemplarily, three accommodating cavities 3143 are provided on the first connecting structure 314, and the three accommodating cavities 3143 are arranged around the through hole 3142 on the first connecting structure 314. Three connecting ears 323 are provided on the volute 321 of the fan 32, and the three connecting ears 323 are arranged around the air suction port 3211 of the fan 32. The shape of the accommodating cavity 3143 matches the shape of the connecting ear 323, so that the connecting ear 323 can be just inserted into the corresponding accommodating cavity 3143.

[0075] Preferably, if Figure 4 and Figure 5 As shown, a first anti-error structure 3144 is provided on the first connection structure 314, and a second anti-error structure 3213 is provided on the fan 32, and the first anti-error structure 3144 cooperates with the second anti-error structure 3213.

[0076] By providing the first anti-error structure 3144 in coordination with the second anti-error structure 3213, it is more advantageous to avoid assembly errors.

[0077] Exemplarily, the first anti-error structure 3144 is a hole structure formed on the first connecting structure 314, and the second anti-error structure 3213 is a column structure arranged on the volute 321 of the fan 32. During assembly, the column structure on the volute 321 can be inserted into the hole structure on the first drying duct 31.

[0078] It should be noted that the first error-proofing structure 3144 and the second error-proofing structure 3213 are not limited to the matching hole structure and column structure described above. For example, they can also be set as a groove structure and a block structure, or a groove structure and a plate structure, etc.

[0079] Preferably, if Figure 3 As shown, the first drying air duct 31 of the present invention is provided with a fresh air inlet 3131 , and the fresh air inlet 3131 is located between the evaporator 34 and the fan 32 .

[0080] By setting a fresh air inlet 3131 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 3131 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.

[0081] For example, Figure 3 As shown, the fresh air inlet 3131 is arranged on the first connecting air duct 313. Of course, those skilled in the art can also arrange the fresh air inlet 3131 on the first heat exchange air duct 312.

[0082] 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 .

[0083] 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, and fresh air continuously enters from the fresh air inlet 3131, 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.

[0084] 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.

[0085] 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.

[0086] 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.

[0087] 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.

[0088] Specifically, the filter device 4 is installed in the first drying air duct 31 and is located upstream of the evaporator 34 .

[0089] Preferably, if Figure 2 As shown, a first plug port 3121 is provided on the drying air duct, and a portion of the filter device 4 passes through the first plug port 3121 and extends into the drying air duct.

[0090] 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 .

[0091] Preferably, if Figure 1 and Figure 2As shown, the housing 1 is provided with a second plug-in port 11 at a position corresponding to the first plug-in port 3121 , and the filter device 4 extends to the second plug-in port 11 .

[0092] When the filter device 4 needs to be cleaned, the user can directly pull the filter device 4 out of the second plug interface 11. After cleaning, the filter device 4 can be passed through the second plug interface 11 and the first plug interface 3121 in sequence and extended into the drying air duct.

[0093] Preferably, if Figures 1 to 7 As shown, the filtering device 4 of the utility model includes a shell 43 and a filtering component installed in the shell 43. The filtering component 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. The two ends of the shell 43 are respectively connected to the first plug interface 3121 and the second plug interface 11. The first end of the filtering component extends to the second plug interface 11, and a part of the filtering component passes through the first plug interface 3121 and extends into the first drying air duct 31.

[0094] When the filter device 4 needs to be cleaned, it is only necessary to pull out the filter assembly, and the housing 43 remains fixed.

[0095] Preferably, if Figures 3 to 7 As shown, the filter assembly of the utility model includes a bracket and a filter screen installed on the bracket.

[0096] Preferably, if Figures 3 to 7 As shown, the bracket includes a first bracket 41 and a second bracket 42, and the filter is 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, and 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 and extend into the first drying air duct 31 and are located upstream of the evaporator 34.

[0097] The filter is 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 providing plug interfaces on the box body 1 and the first drying air duct 31, when the filter device 4 needs to be cleaned, the filter component can be pulled out from the first drying air duct 31 and the box body 1. In addition, by setting 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 outer shell 43 connected to the first plug interface 3121 and the second plug interface 11 respectively, when installing the filter component, it is convenient to smoothly insert the filter component into the first drying air duct 31, and the user experience is better.

[0098] 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 component of the filter device 4 is parallel to the axis of the drum module 2. In this way, the user can pull out the filter component from the front side of the washer-dryer, which is more convenient.

[0099] Preferably, if Figures 6 to 9 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.

[0100] 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.

[0101] 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.

[0102] Preferably, if Figure 7 and Figure 8 As shown, the second bracket 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 fixedly connected to the second end of the first bracket 41, and 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 number of the first filter is greater than the mesh number of the second filter, and the first filter is located downstream of the second filter.

[0103] Among them, the first filter frame 421 and the second filter frame 422 are arranged side by side along the flow direction of the airflow, the first filter frame 421 is located downstream of the second filter frame 422, the second filter and the first 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 first filter for fine filtration, the filtering effect is better, in addition, by pivotally connecting the first filter frame 421 with the second filter frame 422, it is convenient to clean the first filter and the second filter.

[0104] For example, Figure 8 and Fig. 9 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, the second end of the first filter frame 421 does not pass through the socket, and the second end of the first filter frame 421 is located on the outside of 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.

[0105] It should be noted that, in actual applications, those skilled in the art may also make the first end of the first filter frame 421 detachably fixedly connected to the first bracket 41, or make the first ends of the first filter frame 421 and the second filter frame 422 detachably fixedly connected to the second end of the first bracket 41.

[0106] In addition, it should be noted that, in actual applications, those skilled in the art may also cancel the setting of the outer shell 43, or may also cancel the setting of the first bracket 41. In this case, the second bracket 42 and the filter can be inserted into the drying air duct from the back or top surface of the box body 1. Alternatively, the first bracket 41 and the second bracket 42 may be completely canceled. In this case, the filter can be directly fixed in the drying air duct, etc. These sub-preferred implementations are also within the protection scope of the present utility model.

[0107] Preferably, if Figures 6 to 8 As shown, an elastic sealing member 45 is provided at the end of the filter device 4 of the present invention, and the elastic sealing member 45 is tightly pressed against the first inner wall of the drying air duct, which is the inner wall of the drying air duct opposite to the first plug port 3121 .

[0108] Among them, the elastic sealing component 45 is arranged at the second end of the second bracket 42 of the filtering device 4, and the elastic sealing component 45 is against the inner wall of the first drying air duct 31, which can seal the gap between the end of the second bracket 42 and the first inner wall to prevent the wire scraps carried by the airflow from passing through, thereby improving the filtering effect.

[0109] Exemplarily, a receiving groove is provided at the second end of the second bracket 42 , and a portion of the elastic sealing member 45 is embedded in the receiving groove, so that the elastic sealing member 45 is fixed to the second bracket 42 .

[0110] Of course, those skilled in the art can also set the elastic sealing member 45 and the second bracket 42 in one piece in actual application. Specifically, the second bracket 42 of the filter device is generally made of plastic material, and the elastic sealing member 45 is made of rubber material, and double injection molding can be performed to directly integrate the elastic sealing member 45 and the second bracket 42 into one piece.

[0111] Preferably, if Figures 6 to 8 As shown, the elastic sealing component 45 of the utility model includes a main body portion and a supporting portion which are connected to each other. The main body portion is embedded in the filtering device, and the supporting portion is in contact with the first inner wall of the first drying air duct 31 .

[0112] Exemplarily, the main body of the elastic sealing member 45 is a plate-like structure, which is vertically arranged, and a supporting portion is provided at the front end of the main body, which is arranged in a strip shape.

[0113] 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.

[0114] 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 system of a drying equipment, characterized in that: The drying system includes a first drying air duct and a fan, the first drying air duct is provided with a first connecting structure, the fan is provided with a second connecting structure, the first connecting structure is provided with a through hole and a first connecting hole, the through hole is connected to the air suction port of the fan, the number of the first connecting holes is multiple and they are spaced around the through hole, the fan is provided with a second connecting hole, the number of the second connecting holes is multiple and they are spaced around the air suction port, the first connecting hole corresponds to the second connecting hole one by one, at least one of the multiple first connecting holes has a distance between the center of the through hole that is greater than or less than the distance between the other first connecting holes and the center of the through hole, and at least one of the multiple second connecting holes has a distance between the center of the air suction port that is greater than or less than the distance between the other second connecting holes and the center of the air suction port.

2. The drying system of the drying equipment according to claim 1, characterized in that: The first connection structure is provided with a first anti-error structure, the fan is provided with a second anti-error structure, and the first anti-error structure cooperates with the second anti-error structure.

3. The drying system of the drying equipment according to claim 1, characterized in that: The first connection structure is provided with a plurality of accommodating cavities, the first connection holes are located in the accommodating cavities, the second connection structure includes a plurality of connecting ears, the second connection holes are provided in the connecting ears, and the connecting ears are inserted into the corresponding accommodating cavities.

4. The drying system of the drying equipment according to claim 1, characterized in that: The drying system further includes a second drying air duct, the second drying air duct is connected to an exhaust port of the fan, and the second drying air duct and the first drying air duct are arranged in an L shape.

5. The drying system of the drying equipment according to claim 4, characterized in that: The drying system also includes a heat pump module, which includes an evaporator arranged in the first drying air duct and a condenser arranged in the second drying air duct. The first drying air duct is provided with a fresh air inlet, and the fresh air inlet is located between the evaporator and the fan.

6. The drying system of the drying equipment according to claim 5, characterized in that: The second drying air duct is provided with a fresh air outlet, and the fresh air outlet is located downstream of the condenser.

7. The drying system of the drying equipment according to claim 2, characterized in that: The first error-proofing structure is a hole structure, the second error-proofing structure is a column structure, and the hole structure is compatible with the column structure.

8. The drying system of the drying equipment according to any one of claims 1 to 7, characterized in that: A first plug interface is provided on the first drying air duct, and the drying system also includes a filtering device, which includes a first bracket and a second bracket distributed along an insertion direction and a filter screen arranged on the second bracket. A second plug interface is provided on the housing of the drying equipment at a position corresponding to the first plug interface, and the first end of the first bracket extends to the second plug interface, and the second end of the first bracket is detachably fixedly connected to the first end of the second bracket, and the second bracket and the filter screen pass through the second plug interface and the first plug interface in turn and extend into the first drying air duct.

9. The drying system of the drying equipment according to claim 8, characterized in that: The filtering device also includes a locking pin, which is installed on the first bracket. The locking pin is provided with a first locking structure, and the second bracket is provided with a second locking structure. When the locking pin is in a locked position, the first locking structure cooperates with the second locking structure to lock the second bracket with the first bracket. When the locking pin is in an unlocked position, the first locking structure is separated from the second locking structure so as to disassemble and separate the second bracket from the first bracket.

10. A drying device, characterized in that: A drying system comprising the drying system according to any one of claims 1 to 9.

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