Drying equipment

By introducing fresh air and optimizing the airflow layout in the drying equipment, the problem of low efficiency in existing drying equipment has been solved, resulting in faster drying times and a better user experience.

CN223706049UActive Publication Date: 2025-12-23QINGDAO HAIER DRUM WASHING MACHINE CO LTD
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Patent Information

Application Number
CN202520261181.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-18
Publication Date
2025-12-23
Estimated Expiration
2035-02-18

AI Technical Summary

Technical Problem

The existing drying equipment has low drying efficiency, which affects the user experience.

Method used

By setting up air inlet pipes and exhaust pipes in the drying equipment, which are connected to the drying air duct and drying cylinder respectively, dry fresh air is introduced and humid air is discharged. Combined with electric valve control and lint filter device, the airflow direction and layout are optimized to improve drying efficiency.

Benefits of technology

It reduces drying time, improves drying efficiency, and enhances user experience through flexible control and a convenient lint removal mechanism.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223706049U_ABST
Patent Text Reader

Abstract

The utility model relates to the technical field of clothes processing, in particular to drying equipment which comprises a box body, a drying cylinder, a drying air channel, a thread scrap filtering device, an air inlet pipe and an air exhaust pipe, the thread scrap filtering device is installed in the drying air channel, a fresh air inlet in the drying air channel is communicated with one end of the air inlet pipe, and the other end of the air exhaust pipe is communicated with the drying cylinder. A fresh air outlet in the drying cylinder is communicated with one end of an exhaust pipe, and the other end of the exhaust pipe is communicated with an exhaust port in a front panel of the box body. In the process of executing the drying mode, outside fresh air can enter the drying cylinder, a part of wet airflow can be discharged to the outside, the drying efficiency can be improved, the wet airflow is discharged from the exhaust port in the front panel, the discharged wet airflow can be rapidly diffused into the air, accumulation near the drying equipment is avoided, and the drying efficiency is improved. And the drying efficiency can be improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to clothes processing technical field, specifically provide a drying equipment. BACKGROUND

[0002] The existing drying equipment mainly includes washing and drying integrated machine and clothes dryer etc.

[0003] The existing drying equipment mainly includes drying cylinder and drying device communicated with drying cylinder, and the drying device is used for conveying hot air into the drying cylinder to dry the clothes in the drying cylinder. However, the drying time required by the existing drying equipment is generally relatively long, which will affect the user's use experience.

[0004] Therefore, there is a need in the art for a new technical solution to solve the above problems. UTILITY MODEL CONTENT

[0005] The utility model aims at solving the above technical problem, that is, solving the problem of low drying efficiency of the existing drying equipment.

[0006] In a first aspect, the utility model provides a drying equipment, which comprises a box body, a drying cylinder, a drying air duct, a lint filter device, an air inlet pipe and an air outlet pipe installed in the box body, the drying air duct is connected with the drying cylinder, the lint filter device is installed in the drying air duct, a fresh air inlet is arranged on the drying air duct, the fresh air inlet is communicated with one end of the air inlet pipe, a fresh air outlet is arranged on the drying cylinder, the fresh air outlet is communicated with one end of the air outlet pipe, and the other end of the air outlet pipe is communicated with an air outlet on the front panel of the box body.

[0007] In the preferred technical scheme of the above drying equipment, the drying equipment further comprises a first electric valve and a second electric valve respectively installed on the air inlet pipe and the air outlet pipe, and the first electric valve and the second electric valve are respectively used for controlling the on-off of the air inlet pipe and the air outlet pipe.

[0008] In the preferred technical scheme of the above drying equipment, the lint filter device comprises a shell and a first filter screen installed on the shell, a first side surface of the shell is provided with an air inlet, a second side surface of the shell is provided with an air outlet, one of the first side surface and the second side surface is a length direction side surface of the shell, the other of the first side surface and the second side surface is a width direction side surface of the shell, and the first filter screen is installed at the air outlet.

[0009] In the preferred technical scheme of the above drying equipment, the lint filter device further comprises a second filter screen, and the second filter screen is located between the air inlet and the first filter screen.

[0010] In the preferred technical scheme of the above drying equipment, the line scrap filtering device further comprises a mounting frame detachably mounted in the shell, the mounting frame being capable of being drawn out from the air inlet, and the second filter screen being arranged on the mounting frame.

[0011] In the preferred technical scheme of the above drying equipment, the mounting frame comprises a first frame, a second frame and a connecting plate, a first end of the first frame being connected with a first end of the second frame, a second end of the first frame and a second end of the second frame being connected through the connecting plate, the first frame being located at the air inlet, the second filter screen being arranged on the second frame, and the connecting plate being arranged opposite to the second side surface.

[0012] In the preferred technical scheme of the above drying equipment, the second filter screen is in the shape of a circular arc and protrudes towards the first filter screen.

[0013] In the preferred technical scheme of the above drying equipment, the fresh air inlet is located upstream or downstream of the line scrap filtering device, and / or the fresh air outlet is arranged at the top of the drying cylinder.

[0014] In the preferred technical scheme of the above drying equipment, the other end of the air inlet pipe is in communication with an air inlet on the back plate of the box body, and / or the drying air duct is located above the drying cylinder, and the air outlet pipe is located between the drying cylinder and the drying air duct.

[0015] In the preferred technical scheme of the above drying equipment, the drying air duct comprises a first air duct and a second air duct in communication, the first air duct and the second air duct are both located above the drying cylinder, the first air duct extends in the front-rear direction, the second air duct extends in the left-right direction and is close to the front end of the drying cylinder, the line scrap filtering device is mounted in the first air duct, the fresh air inlet is arranged in the first air duct, and the drying equipment further comprises a heat pump module, an evaporator and a condenser of the heat pump module being mounted in the second air duct, and the evaporator is located upstream of the condenser.

[0016] In the case of adopting the above technical scheme, the air inlet pipe and the air outlet pipe are arranged in communication with the drying air duct and the drying cylinder respectively, in the process of executing the drying mode, the fresh air outside can enter the drying cylinder, the fresh air is relatively dry, and part of the moisture flow can be discharged outside, through such arrangement, it is very beneficial to reduce the humidity of the airflow, thereby being beneficial to improve the drying efficiency and reduce the drying time, in addition, the moisture flow is guided to the air outlet on the front panel of the box body through the air outlet pipe, which is beneficial to rapidly diffuse the discharged moisture flow in the air, avoids accumulation near the drying equipment, and is more beneficial to improve the drying efficiency.

[0017] Further, by installing the first electric valve and the second electric valve on the air inlet pipe and the air outlet pipe respectively, when the drying mode is executed, the introduction of fresh air can be selected or not, so that the control of the drying equipment is more flexible, and the use experience of the user is improved.

[0018] Still further, by arranging the air inlet and the air outlet on the length direction side and the width direction side of the shell of the wire scrap filtering device respectively, the flow direction of the airflow entering the shell can be changed, and the wire scrap filtering device is facilitated to be arranged.

[0019] Still further, by setting the mounting frame to be able to be pulled out from the air inlet of the shell, when the mounting frame is disassembled, the wire scrap filtered by the second filter screen can be scraped by the mounting frame.

[0020] Still further, by surrounding the first frame, the second frame and the connecting plate of the mounting frame, when the mounting frame is disassembled, the mounting frame can better scrape the wire scrap.

[0021] Still further, by setting the second filter screen between the air inlet and the first filter screen to be arc-shaped, the filtering area of the second filter screen is increased, and the filtering effect of the wire scrap filtering device is improved.

[0022] Still further, by setting the fresh air inlet upstream of the wire scrap filtering device, the fresh air entering the drying air duct can also be filtered by the wire scrap filtering device.

[0023] Still further, by setting the fresh air inlet downstream of the wire scrap filtering device, the air resistance is smaller, and more fresh air can be sucked.

[0024] Still further, by installing the drying air duct above the drying cylinder and setting the air outlet pipe between the drying cylinder and the drying air duct, the space utilization is more reasonable, and the layout is more optimized.

[0025] Still further, by setting the air inlet on the back plate of the cabinet away from the air outlet on the front panel of the cabinet, the influence of the humid air discharged from the air outlet on the introduced fresh air is reduced, and the drying efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0026] The preferred embodiments of the present application will be described below with reference to the accompanying drawings, in which:

[0027] Figure 1 is a structure diagram of the washing and drying integrated machine of the present application Figure 1 ;

[0028] Figure 2 is a structure diagram of the outer cylinder and the drying device of the present application

[0029] Figure 3 is a structure diagram of the washing and drying all-in-one machine of the utility model Figure 2 ;

[0030] Figure 4 is a structure diagram of the outer cylinder, exhaust pipe and second electric valve of the utility model

[0031] Figure 5 is a structure diagram of the drying device of the washing and drying all-in-one machine of the utility model Figure 1 ;

[0032] Figure 6 is a structure diagram of the drying device of the washing and drying all-in-one machine of the utility model Figure 2 ;

[0033] Figure 7 is a structure diagram of the drying device, lint filter device, water spraying pipe and second washing device of the utility model

[0034] Figure 8 is Figure 7 an enlarged diagram of A in the figure

[0035] Figure 9 is a structure diagram of the drying air duct and lint filter device of the utility model

[0036] Figure 10 is a structure diagram of the lint filter device of the utility model

[0037] Figure 11 is a structure diagram of the shell of the lint filter device of the utility model

[0038] Figure 12 is a structure diagram of the mounting rack of the lint filter device of the utility model

[0039] Figure 13 is a structure diagram of the scraping member and mounting rack of the lint filter device of the utility model

[0040] List of reference signs:

[0041] 1, box; 2, outer cylinder; 21, air outlet; 22, window pad; 23, return air inlet; 31, drying air duct; 311, first air duct; 312, second air duct; 313, upper cover; 3111, air inlet port; 3112, plug interface; 3113, blocking positioning structure; 3114, fresh air inlet; 31131, first inclined surface; 3121, air outlet port; 3122, access hole; 3123, drain port; 32, fan; 33, evaporator; 34, corrugated pipe; 35, rubber pipe; 4, lint filtering device; 41, shell; 42, mounting frame; 43, handle; 44, scraping member; 45, first annular sealing member; 46, second annular sealing member; 411, air inlet; 412, air outlet; 413, cleaning window; 414, cover plate; 415, first annular groove; 416, first clamping structure; 421, first frame; 422, second frame; 423, connecting plate; 4211, second annular groove; 4212, second inclined surface; 4213, second clamping structure; 441, annular scraper; 442, sealing plate; 51, air inlet pipe; 52, air outlet pipe; 53, first electric valve; 54, second electric valve; 61, condensate pipe; 62, one-way valve; 7, drain pipe; 8, water spraying pipe; 9, second flushing device; 91, water pipe joint. DETAILED DESCRIPTION

[0042] The preferred embodiments of the present application will be described below with reference to the drawings. Those skilled in the art will understand that these embodiments are only used to explain the technical principles of the present application, and are not intended to limit the protection scope of the present application.

[0043] For example, although the embodiments described below are introduced in combination with the washer-dryer, the technical solutions of the present application are also applicable to other types of drying equipment, such as clothes dryers, etc.

[0044] It should be noted that in the description of the present application, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0045] In addition, it also needs to be explained that in the description of the present application, unless otherwise explicitly specified and limited, the terms "providing", "connecting", "mounting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0046] Specifically, the present application provides a washer-dryer, such as Figure 1As shown, the washing and drying integrated machine comprises a box body 1 and a drying cylinder and a drying device installed in the box body 1, and the drying device can deliver hot air into the drying cylinder to dry clothes in the drying cylinder.

[0047] The drying cylinder comprises an outer cylinder 2 and an inner cylinder rotatably installed in the outer cylinder 2, the drying device is directly communicated with the outer cylinder 2, the inner cylinder is used for accommodating clothes, and a plurality of through holes are arranged on the cylinder wall of the inner cylinder, the through holes can be used for ventilation when the drying mode is executed, and the through holes can be used for water passing when the washing mode is executed.

[0048] Preferably, as Figures 1 to 9 As shown, the drying device comprises a drying air duct 31, a fan 32 and a heat pump module, an air inlet port 3111 of the drying air duct 31 is communicated with one end of the drying cylinder, an air outlet port 3121 of the drying air duct 31 is communicated with a suction port of the fan 32, an air outlet port of the fan 32 is communicated with the other end of the drying cylinder, an evaporator 33 and a condenser of the heat pump module are installed in the drying air duct 31, and the evaporator 33 is located upstream of the condenser.

[0049] The heat pump module further comprises a compressor, a refrigerant pipeline for communicating the evaporator 33 and the condenser with the compressor and a throttling element installed on the refrigerant pipeline. The compressor is located outside the drying air duct 31.

[0050] Exemplarily, the drying air duct 31 is located above the outer cylinder 2, an air outlet 21 is arranged on the cylinder wall of the outer cylinder 2, the air outlet 21 is close to the rear end of the outer cylinder 2, a window pad 22 is installed at the cylinder opening of the outer cylinder 2, a return air inlet 23 is arranged on the window pad 22, the air inlet port 3111 of the drying air duct 31 is communicated with the air outlet 21 through a corrugated pipe 34, and the air outlet port of the fan 32 is communicated with the return air inlet 23 through a rubber pipe 35.

[0051] When the drying mode is executed, the fan 32 is started, the wet air in the drying cylinder is discharged through the air outlet 21, enters the drying air duct 31, is dehumidified by the evaporator 33, is heated by the condenser, and then the hot air flows back to the drying cylinder from the return air inlet 23 to complete a cycle.

[0052] It should be noted that the drying air duct 31 is not limited to being arranged above the drying cylinder, for example, the drying air duct 31 can also be arranged below or behind the outer cylinder 2, and the adjustment and change of the specific installation position of the drying air duct 31 do not deviate from the principle and range of the present application. Of course, the drying air duct 31 is preferably arranged above the drying cylinder, which is beneficial to fully utilize the space above the drying cylinder and optimize the layout.

[0053] In addition, it also needs to be explained that the skilled person in the art can also exchange the positions of the air outlet 21 and the air return port 23, that is, the front end of the drying cylinder is air outlet and the rear end is air inlet, in addition, the air outlet 21 can be arranged on the rear wall of the outer cylinder 2, etc., such flexible adjustment and change do not deviate from the principles and scope of the present application, and should be limited within the protection scope of the present application.

[0054] In addition, it also needs to be explained that the skilled person in the art can also communicate the air suction port of the fan 32 with the air outlet 21 on the drying cylinder, and then make the air exhaust port of the fan 32 communicate with the air inlet port 3111 of the drying air duct 31, or the drying air duct 31 can be arranged in two sections, the fan 32 is installed between the two sections of the air duct, or the fan 32 can be directly installed in the drying air duct 31, etc., such adjustment and change of the installation position of the fan 32 do not deviate from the principles and scope of the present application, and should be limited within the protection scope of the present application.

[0055] In addition, it also needs to be explained that the skilled person in the art can also cancel the setting of the heat pump module in actual application, and use other types of dehumidifying components and heating components to dehumidify and heat the airflow in the drying air duct 31, such flexible adjustment and change do not deviate from the principles and scope of the present application, and should be limited within the protection scope of the present application.

[0056] Preferably, as shown in the Figures 1 to 7 The washing and drying integrated machine of the present application further comprises a lint filter device 4 installed in the cabinet 1, the lint filter device 4 is installed in the drying air duct 31, and the lint filter device 4 is located upstream of the evaporator 33.

[0057] The lint filter device 4 is used to filter the airflow entering the drying air duct 31, when the airflow in the drying air duct 31 flows through the lint filter device 4, the lint and other impurities carried by the airflow are intercepted by the lint filter device 4, and the filtered lint is stored in the lint filter device 4.

[0058] Preferably, as shown in the Figures 1 to 7 The lint filter device 4 of the present application is detachably installed in the drying air duct 31, the drying air duct 31 is provided with a plug-in port 3112, and the lint filter device 4 is inserted into the drying air duct 31 through the plug-in port 3112.

[0059] When it is necessary to clean the lint in the lint filter device 4, the lint filter device 4 can be taken out of the drying air duct 31. Wherein, one pressure sensor can be arranged upstream and downstream of the lint filter device 4 respectively, the pressure difference of the two pressure sensors is used to determine whether the lint filter device 4 needs to be cleaned, when it is determined that cleaning is needed, a prompt information can be sent to the user to prompt the user to clean the lint filter device 4.

[0060] It should be noted that, in practical applications, those skilled in the art can place the connector 3112 on the side of the drying duct 31, or on the top surface of the drying duct 31, etc. Such adjustments and changes to the specific location of the connector 3112 do not deviate from the principle and scope of this utility model, and should all be limited to the protection scope of this utility model.

[0061] Preferably, such as Figure 1 As shown, the drying air duct 31 is provided with an interface 3112 on the side facing the front panel of the housing 1. The front panel is provided with a disassembly port opposite to the interface 3112, and the lint filter device 4 can be pulled out from the disassembly port.

[0062] When it is necessary to clean the lint filter device 4, the user can pull out the lint filter device 4 from the disassembly port on the front panel of the housing 1 for easy operation. After cleaning the lint filter device 4, the user can then insert the lint filter device 4 back in through the disassembly port.

[0063] Preferably, such as Figures 1 to 9 As shown, the drying air duct 31 of this utility model includes a first air duct 311 and a second air duct 312 that are connected to each other. The first air duct 311 extends in the front-to-back direction, and the second air duct 312 extends in the left-to-right direction and is close to the front end of the drying cylinder. The air inlet port 3111 of the drying air duct 31 is located in the first air duct 311, and the air outlet port 3121 of the drying air duct 31 is located in the second air duct 312. The lint filter device 4 is installed in the first air duct 311, and the evaporator 33 and condenser of the drying module are installed in the second air duct 312.

[0064] For example, both the first air duct 311 and the second air duct 312 are located above the outer cylinder 2. The first air duct 311 is located at the upper left of the outer cylinder 2 and extends from the rear end of the outer cylinder 2 to the front end. An air inlet port 3111 is provided on the bottom wall at the rear end of the first air duct 311. An air outlet 21 on the outer cylinder 2 is located directly below the air inlet port 3111. The air outlet 21 is connected to the upper air inlet port 3111 through a corrugated pipe 34. An insertion interface 3112 is provided at the front end of the first air duct 311. The lint filter 4 is inserted into the first air duct 311 from the front end of the first air duct 311. The left end of the second air duct 312 is connected to the first air duct 311. An air outlet port 3121 is provided at the right end of the second air duct 312. A fan 32 is located at the upper right of the outer cylinder 2. The air inlet of the fan 32 is connected to the air outlet port 3121 on the second air duct 312.

[0065] It should be noted that the first air duct 311 can be arranged above the right of the drying cylinder in actual application by those skilled in the art, and correspondingly, the fan 32 is arranged above the left of the drying cylinder, and the flexible adjustment and change do not deviate from the principles and scope of the present application, and should be limited within the protection scope of the present application.

[0066] Of course, the first air duct 311 is preferably arranged above the left of the outer cylinder 2, and a detergent dispenser is generally arranged at the left upper corner, and the first air duct 311 is preferably arranged above the detergent dispenser.

[0067] Preferably, as shown in Figures 1 to 4 , Figure 7 and Figure 8 , the washer-dryer further comprises an air inlet pipe 51 and an air outlet pipe 52, the drying air duct 31 is provided with a fresh air inlet 3114, the fresh air inlet 3114 is in communication with one end of the air inlet pipe 51, the drying cylinder is provided with a fresh air outlet, the fresh air outlet is in communication with one end of the air outlet pipe 52, and the other end of the air outlet pipe 52 is in communication with the air outlet on the front panel of the cabinet 1.

[0068] During the execution of the drying mode, the outside fresh air can be sucked into the drying air duct 31 through the air inlet pipe 51, and then enter the drying cylinder along the drying air duct 31, and part of the humid air in the drying cylinder enters the air outlet pipe 52 and is discharged from the air outlet on the front panel of the cabinet 1, and the introduction of fresh air is beneficial to improve the drying efficiency.

[0069] Preferably, as shown in Figures 1 to 4 , Figure 7 and Figure 8 , the fresh air inlet 3114 is located upstream of the lint filter device 4.

[0070] Exemplarily, the fresh air inlet 3114 is arranged in the first air duct 311, and is preferably located at the rear end of the first air duct 311, an air inlet is arranged on the back panel of the cabinet 1, the other end of the air inlet pipe 51 is in communication with the air inlet on the back panel, and the fresh air outlet is arranged on the top of the outer cylinder 2 and close to the rear end of the outer cylinder 2, and the air outlet pipe 52 is located above the outer cylinder 2.

[0071] It should be noted that the fresh air inlet can be arranged downstream of the lint filter device 4 in actual application by those skilled in the art, for example, arranged between the lint filter device 4 and the evaporator 33.

[0072] In addition, it also needs to be explained that the skilled person in the actual application, the air inlet on the box can also be set on the top plate or side plate of the box 1, or, the air inlet can also not be set on the box 1, and the other end of the air inlet pipe 51 is located between the drying cylinder and the box 1, etc. Such flexible adjustment and change do not deviate from the principles and scope of the present application, and should be limited within the protection scope of the present application. Of course, the present application preferably sets the air inlet on the back plate of the box 1.

[0073] In addition, it also needs to be explained that the fresh air outlet is not limited to being set on the top of the drying cylinder, for example, it can also be set on the side or rear wall of the drying cylinder, etc. Such adjustment and change of the specific setting position of the fresh air outlet do not deviate from the principles and scope of the present application, and should be limited within the protection scope of the present application.

[0074] Of course, the present application preferably sets the fresh air outlet on the top of the drying cylinder. The fresh air outlet can be close to the rear end of the drying cylinder, or close to the front end of the drying cylinder.

[0075] Preferably, as shown in Figure 2 and Figure 4 , the exhaust pipe 52 is located between the drying cylinder and the drying air duct 31.

[0076] Exemplarily, there is a gap between the bottom of the second air duct 312 and the top of the outer cylinder 2, and the exhaust pipe 52 is located at the gap.

[0077] Preferably, as shown in Figure 3 and Figure 4 , the washing and drying integrated machine of the present application further comprises a first electric valve 53 and a second electric valve 54 respectively installed on the air inlet pipe 51 and the exhaust pipe 52, and the first electric valve 53 and the second electric valve 54 are respectively used to control the on-off of the air inlet pipe 51 and the exhaust pipe 52.

[0078] Among them, the first electric valve 53 and the second electric valve 54 are in communication connection with the controller of the washing and drying integrated machine. During the execution of the drying mode, if the introduction of fresh air is selected, the first electric valve 53 and the second electric valve 54 are opened, and if the introduction of fresh air is not selected, the first electric valve 53 and the second electric valve 54 are kept in the closed state.

[0079] Preferably, as shown in Figure 3 , Figure 7 and Figure 9 , the washing and drying integrated machine of the present application further comprises a condensate water pipe 61, and the drying air duct 31 is provided with a drain port 3123 at a position corresponding to the evaporator 33. The drain port 3123 is in communication with the drain pipe 7 of the washing and drying integrated machine through the condensate water pipe 61, and the drain pipe 7 is in communication with the outer cylinder 2.

[0080] Exemplarily, the drain port 3123 is arranged on the second air duct 312 and located on the bottom wall of the second air duct 312, when the moisture flow flows through the evaporator 33, the water carried by the moisture flow is condensed into condensed water on the surface of the evaporator 33, the condensed water drops to the bottom wall of the second air duct 312 and enters the condensed water pipe 61 through the drain port 3123, and then enters the drain pipe 7 through the condensed water pipe 61 and is drained out through the drain.

[0081] Preferably, as shown in Figure 3 The washing and drying integrated machine further comprises a one-way valve 62 arranged on the condensed water pipe 61.

[0082] By arranging the one-way valve on the condensed water pipe 61, the odor or sewage in the floor drain can be prevented from flowing back into the drying air duct 31 along the condensed water pipe 61.

[0083] Preferably, as shown in Figure 5 and Figure 6 The drying air duct 31 of the utility model is provided with an access hole 3122 corresponding to the evaporator 33 and the condenser, and the drying device further comprises an upper cover 313 used for closing the access hole 3122.

[0084] Exemplarily, the access hole 3122 is arranged on the second air duct 312 and located on the top of the second air duct 312, and the evaporator 33 and the condenser are located below the access hole 3122, when the evaporator 33 or the condenser needs to be repaired, the upper cover 313 is opened to expose the evaporator 33 and the condenser, so that the repair is facilitated, and after the repair is completed, the access hole 3122 is closed again through the upper cover 313.

[0085] In addition, it also needs to be explained that the person skilled in the art can make the upper cover 313 pivotally connected with the drying air duct 31 in the actual application, or the upper cover 313 is fixedly connected with the drying air duct 31 by using screws and other fasteners, etc., and the adjustment and change of the specific connection mode of the upper cover 313 and the drying air duct 31 also do not deviate from the principles and ranges of the utility model, and should be limited within the protection scope of the utility model.

[0086] Preferably, the top plate of the cabinet 1 is provided with an opening corresponding to the access hole 3122, and the cabinet 1 further comprises a top cover used for closing the opening.

[0087] By arranging the opening on the top plate of the cabinet 1, when the evaporator 33 or the condenser needs to be repaired, the entire top plate does not need to be disassembled, only the top cover needs to be opened, and then the upper cover 313 on the drying air duct 31 is opened through the opening on the top plate, so that the operation is more convenient.

[0088] The size of the opening on the top plate is larger than that of the inspection hole 3122 on the drying air duct 31, so that the maintenance work is more convenient.

[0089] Preferably, as shown in the drawings, the washing and drying integrated machine further comprises a first flushing device. Figures 5 to 7 The first flushing device is arranged at the corner of the drying air duct 31 close to the air inlet port 3111, and is used for flushing the inner wall of the drying air duct 31 at the corner.

[0090] The airflow in the drying cylinder is discharged from the air outlet 21, first flows upward, impacts on the top wall of the drying air duct 31, and then flows in the horizontal direction. The corner refers to the position where the airflow vertically flows to the horizontal direction. The corner of the drying air duct 31 is prone to accumulate lint. The first flushing device is arranged to flush the inner wall of the drying air duct 31 at the corner, so that the lint at the corner is flushed away, which is beneficial to ensure the smoothness of the airflow, thereby improving the drying efficiency.

[0091] Exemplarily, the first flushing device is in communication with the first air duct 311, and is used for flushing the inner wall of the first air duct 311 at the corner.

[0092] It should be noted that the specific structure of the first flushing device is not limited in the utility model. For example, the first flushing device can be arranged as a water spraying pipe, or can be arranged as a water spraying channel formed on the drying air duct. The adjustment and change of the specific structure of the first flushing device do not deviate from the principle and scope of the utility model, and should be limited within the protection scope of the utility model.

[0093] Preferably, as shown in the drawings, the first flushing device comprises a water spraying pipe 8. Figures 5 to 7 The water spraying pipe 8 is inserted into the drying air duct 31, and a water spraying port is arranged on the water spraying pipe 8 and faces the inner wall of the drying air duct 31.

[0094] Exemplarily, a part of the water spraying pipe 8 is inserted into the first air duct 311, and the part of the water spraying pipe 8 inserted into the first air duct 311 is located above the air inlet port 3111. The air inlet port 3111 is arranged on the bottom wall of the first air duct 311. One end of the water spraying pipe 8 located outside the first air duct 311 is in communication with a water source (a faucet, etc.) through a water supply pipe. An electromagnetic valve is arranged on the water supply pipe. When it is necessary to flush the inner wall of the first air duct 311 at the corner, the electromagnetic valve is opened, water is supplied to the water spraying pipe 8, water is sprayed to the inner wall of the first air duct 311 through the water spraying port, and the water and the lint flow into the outer cylinder 2 through the air inlet port 3111 of the first air duct 311, and finally are discharged through the drain pipe 7.

[0095] Preferably, as shown in the drawings, the first flushing device comprises a water spraying pipe 8. Figures 5 to 7As shown, the washing and drying integrated machine further comprises a second flushing device 9 installed in the second air duct 312, and the second flushing device 9 is used for flushing the evaporator 33.

[0096] The evaporator 33 is also prone to lint accumulation, and the second flushing device 9 is arranged to flush the evaporator 33, which is beneficial to ensure the heat exchange efficiency of the airflow and the evaporator 33, thereby improving the efficiency of condensation and dehumidification, and further improving the drying efficiency.

[0097] Exemplarily, the second flushing device 9 comprises a strip-shaped shell, the shell is located above the evaporator 33 and extends in the front-rear direction, a plurality of water spray holes are arranged on the bottom wall of the shell, the top of the shell is provided in an open manner, the top of the shell is sealingly connected with the inner top wall of the second air duct 312, the second air duct 312 is provided with a water inlet at a position corresponding to the shell, a water pipe joint 91 is installed on the water inlet, the water pipe joint 91 is communicated with a water source (a faucet, etc.) through a water supply pipe, an electromagnetic valve is arranged on the water supply pipe, when it is necessary to flush the evaporator 33, the electromagnetic valve is opened to supply water to the second flushing device 9, and water is sprayed towards the evaporator 33 through the plurality of water spray holes on the second flushing device 9, the water and the lint flow into the condensate pipe 61 through the drain port 3123 of the second air duct 312, flow into the drain pipe 7 through the condensate pipe 61, and finally flow out through the drain pipe 7.

[0098] It should be noted that the second flushing device 9 is not limited to the structure of the shell described above, for example, the second flushing device 9 can also be arranged as a flushing water pipe or a flushing channel formed on the second air duct 312, and the adjustment and change of the specific structure of the second flushing device 9 do not deviate from the principles and scope of the present application, and should be limited within the protection scope of the present application.

[0099] Preferably, as Figures 9 to 11 As shown, the lint filter device 4 of the present application comprises a shell 41 and a first filter screen installed on the shell 41, a first side of the shell 41 is provided with an air inlet 411, a second side of the shell 41 is provided with an air outlet 412, one of the first side and the second side is a lengthwise side of the shell 41, and the other of the first side and the second side is a widthwise side of the shell 41, and the first filter screen is installed at the air outlet 412.

[0100] Exemplarily, the shell 41 of the lint filtering device 4 is a rectangular shell 41 and extends in the front-rear direction, the first side is the rear end surface of the shell 41 (i.e. the side surface of the shell 41 in the length direction), and the second side is the right side surface of the shell 41 (i.e. the side surface of the shell 41 in the width direction), the second side is opposite to the second air duct 312, the air flow entering the first air duct 311 first enters the shell 41 through the air inlet 411 at the rear end of the shell 41, and then is discharged through the air outlet 412 at the right side of the shell 41 and enters the second air duct 312, is dehumidified by the evaporator 33 and heated by the condenser in the second air duct 312, and is finally discharged from the air outlet port 3121 at the right end of the second air duct 312 and enters the fan 32, and is finally blown into the drying cylinder by the fan 32.

[0101] Preferably, the lint filtering device 4 of the utility model further comprises a second filter screen installed in the shell 41, and the second filter screen is located between the air inlet 411 and the first filter screen.

[0102] By installing the second filter screen between the air inlet 411 and the first filter screen, the filtering effect of the lint filtering device 4 is improved.

[0103] Preferably, the mesh number of the first filter screen is greater than that of the second filter screen. That is, coarse filtering is first performed by the second filter screen, and then fine filtering is performed by the first filter screen.

[0104] Preferably, the second filter screen is arc-shaped and protrudes towards the first filter screen.

[0105] That is, the center of the second filter screen is located on the side of the second filter screen away from the first filter screen, which is beneficial to improve the filtering area of the second filter screen.

[0106] It should be noted that the shape of the second filter screen is not limited to being arc-shaped, for example, it can also be straight or V-shaped, and the like. Adjustment and change of the specific shape of the second filter screen do not deviate from the principles and scope of the utility model, and should be limited within the protection scope of the utility model.

[0107] Of course, the utility model preferably sets the second filter screen as arc-shaped, which is more beneficial to improve the filtering area of the second filter screen, thereby improving the filtering effect of the lint filtering device 4.

[0108] Preferably, the second filter screen extends from the connection between the first side and the second side of the shell 41 towards the third side of the shell 41, and the third side is opposite to the second side.

[0109] Preferably, the second filter screen is connected with the third side of the shell 41.

[0110] Preferably, as Figures 10 to 12As shown, the line debris filtering device 4 further comprises a mounting rack 42 detachably mounted in the shell 41, the mounting rack 42 can be pulled out from the air inlet 411 of the shell 41, and the second filter screen is arranged on the mounting rack 42.

[0111] By setting the mounting rack 42 to be able to be pulled out from the air inlet 411 of the shell 41, the second filter screen is facilitated to be cleaned, and in addition, in the process of pulling out the mounting rack 42 and the second filter screen, the line debris filtered by the second filter screen will also come out together with the mounting rack 42, thereby achieving the effect of scraping the line debris.

[0112] Preferably, as Figures 10 to 12 As shown, the mounting rack 42 of the line debris filtering device 4 comprises a first frame 421, a second frame 422 and a connecting plate 423, the first end of the first frame 421 is connected with the first end of the second frame 422, the second end of the first frame 421 and the second end of the second frame 422 are connected through the connecting plate 423, the first frame 421 is located at the air inlet 411, the second filter screen is arranged on the second frame 422, and the connecting plate 423 is arranged opposite to the second side of the shell 41.

[0113] Preferably, the shape of the second frame 422 is preferably the same as that of the second filter screen, and in the case that the second filter screen is arranged in a circular arc shape, the second frame 422 is preferably also circular arc-shaped, and the second filter screen extends from the first end of the second frame 422 to the second end of the second frame 422.

[0114] Exemplarily, the first frame 421, the second frame 422 and the connecting plate 423 are connected end to end, and the line debris filtered by the second filter screen is all located in the mounting rack 42, and when the mounting rack 42 is pulled out from the shell 41, it is more conducive to scraping all the line debris filtered by the second filter screen, thereby improving the effect of removing the line debris.

[0115] Preferably, as Figure 10 and Figure 12 As shown, the connecting plate 423 of the mounting rack 42 is attached to the inner wall of the third side of the shell 41.

[0116] That is, the second end of the second frame 422 is connected with the third side of the shell 41, that is, the second filter screen is connected with the third side of the shell 41.

[0117] Preferably, as Figures 10 to 12 As shown, the shell 41 of the line debris filtering device 4 is provided with a first clamping structure 416, the first frame 421 is provided with a second clamping structure 4213, and the first clamping structure 416 and the second clamping structure 4213 are clamped and matched.

[0118] Exemplarily, the first clamping structure 416 is a clamping hole arranged on the shell 41, and the second clamping structure 4213 is a clamping hook arranged on the first frame 421, the clamping hook is matched with the clamping hole, and the top and the bottom of the shell 41 are each provided with a clamping hole, and correspondingly, the top and the bottom of the first frame 421 are each provided with a clamping hook.

[0119] It should be noted that the first clamping structure 416 and the second clamping structure 4213 are not limited to the structure matched by the clamping hole and the clamping hook, for example, a structure matched by a clamping groove and a clamping hook, or a structure matched by two clamping hooks, and the like, and adjustment and change of the specific structure forms of the first clamping structure 416 and the second clamping structure 4213 do not deviate from the principles and ranges of the present application, and should be limited within the protection scope of the present application.

[0120] Preferably, the radius of the second filter screen is R, and the size of the second filter screen along the length direction of the shell 41 is L, and 1.0≤R / L≤3.0.

[0121] Exemplarily, the connecting plate 423 of the mounting frame 42 is attached to the third side surface of the shell 41, and the two ends of the connecting plate 423 are connected with the second end of the first frame 421 and the second end of the second frame 422 respectively, and then, as shown in Figure 12 , the size L of the second filter screen along the length direction of the shell 41 is the length of the connecting plate 423.

[0122] By limiting R / L between 1.0 and 3.0, the second filter screen can have a better filtering effect. For example, R / L can be set to 1.0, 1.5, 2.0, 2.5 or 3.0. Further preferably, 2.0≤R / L≤2.5.

[0123] Preferably, as shown in Figure 10 and Figure 11 , at least a part of the shell 41 of the thread filter device 4 of the present application is transparent.

[0124] By setting a part of the shell 41 to be transparent, it is convenient to observe whether the threads inside the shell 41 are cleaned.

[0125] Preferably, as shown in Figure 10 and Figure 11 , the shell 41 of the thread filter device 4 of the present application is provided with a cleaning window 413, and the shell 41 further comprises a cover plate 414 for closing the cleaning window 413, and the cover plate 414 is transparent.

[0126] Exemplarily, the cover plate 414 is pivotally connected with the shell 41, when it is needed to clean the thread scraps inside the shell 41, the cover plate 414 can be opened, and the thread scraps inside the shell 41 can be cleaned through the cleaning window 413 on the shell 41.

[0127] Preferably, as shown in the drawings, Figure 9 the fourth side of the shell 41 of the thread scrap filtering device 4 is provided with a handle 43, and the fourth side is opposite to the first side.

[0128] By providing the handle 43 on the shell 41, the thread scrap filtering device 4 is more convenient to pull out from the drying air duct 31.

[0129] Preferably, as shown in the drawings, Figure 10 , Figure 11 and Figure 13 the thread scrap filtering device 4 further comprises a scraping member 44, the scraping member 44 is connected with the mounting frame 42 and located on the side of the mounting frame 42 away from the air inlet 411 of the shell 41, and the scraping member 44 can scrape the thread scraps inside the shell 41 during the extraction of the mounting frame 42.

[0130] The mounting frame 42 can only scrape the thread scraps filtered by the second filter screen, by providing the scraping member 44, the thread scraps filtered by the first filter screen can also be scraped by the scraping member 44 during the extraction of the mounting frame 42, which is beneficial to improve the cleaning efficiency of the thread scrap filtering device 4.

[0131] Exemplarily, the scraping member 44 is connected with the connecting plate 423 of the mounting frame 42, the connecting plate 423 connects the first frame 421 and the second frame 422, and then continues to extend forward by a length for connecting the scraping member 44. Of course, the connecting plate 423 can not continue to extend forward, and the scraping member 44 can be directly connected with the connecting plate 423 at the position where the connecting plate 423 is connected with the second frame 422.

[0132] It should be noted that the person skilled in the art can set the scraping member 44 as a scraping plate, a scraping block or a scraping frame and the like in actual application, and the adjustment and change of the specific structure form of the scraping member 44 do not deviate from the principles and scope of the present application, and should be limited within the protection scope of the present application.

[0133] Preferably, as shown in the drawings, Figure 10 and Figure 13 the scraping member 44 comprises an annular scraping plate 441 and a sealing plate 442, the annular scraping plate 441 is attached to the inner wall of the shell 41 of the thread scrap filtering device 4, and the sealing plate 442 is connected with the annular scraping plate 441 and seals one end of the annular scraping plate 441 away from the air inlet 411.

[0134] Exemplarily, the cross section of the shell 41 is rectangular, the shape surrounded by the annular scraper 441 is also a rectangular ring, four surfaces of the annular scraper 441 are respectively attached to four inner walls of the shell 41, and the sealing plate 442 is integrally arranged with the annular scraper 441. Wherein, the sealing plate 442 can be regarded as the fourth side of the shell 41, and the handle 43 of the wire scrap filtering device 4 is arranged on the outer side wall of the sealing plate 442.

[0135] Preferably, as shown in the drawings, the wire scrap filtering device 4 is provided with a first annular sealing member 45 at one end close to the plug-in interface 3112 of the drying air duct 31, and is provided with a second annular sealing member 46 at the other end, the first annular sealing member 45 and the second annular sealing member 46 are both sealingly attached to the inner wall of the drying air duct 31, and the outer diameter of the first annular sealing member 45 is larger than that of the second annular sealing member 46. Figures 7 to 10

[0136] That is to say, the second annular sealing member 46 at the inner end is smaller in size, so that the friction between the wire scrap filtering device 4 and the drying air duct 31 is reduced during the installation and dismounting of the wire scrap filtering device 4, and more labor-saving.

[0137] Exemplarily, the first annular sealing member 45 is arranged at one end of the shell 41 close to the plug-in interface 3112 of the drying air duct 31, and the second annular sealing member 46 is arranged at one end of the mounting frame 42 away from the plug-in interface 3112, specifically, the second annular sealing member 46 is arranged on the first frame 421, and the first annular sealing member 45 and the second annular sealing member 46 are both sealingly attached to the inner wall of the first air duct 311. Of course, in the case where the mounting frame 42 is not arranged, the second annular sealing member 46 can also be arranged on the shell 41 of the wire scrap filtering device 4.

[0138] It should be noted that the specific structure of the first annular sealing member 45 and the second annular sealing member 46 is not limited in the utility model, for example, it can be arranged as an annular sealing gasket, an annular sealing ring or an annular structure composed of multiple sealing strips.

[0139] Preferably, as shown in the drawings, the wire scrap filtering device 4 is provided with a first annular sealing member 45 at one end close to the plug-in interface 3112 of the drying air duct 31, and is provided with a second annular sealing member 46 at the other end, the first annular sealing member 45 and the second annular sealing member 46 are both sealingly attached to the inner wall of the drying air duct 31, and the outer diameter of the first annular sealing member 45 is larger than that of the second annular sealing member 46. Figure 10 Figure 11 Exemplarily, the first annular sealing member 45 is arranged at one end of the shell 41 close to the plug-in interface 3112 of the drying air duct 31, and the second annular sealing member 46 is arranged at one end of the mounting frame 42 away from the plug-in interface 3112, specifically, the second annular sealing member 46 is arranged on the first frame 421, and the first annular sealing member 45 and the second annular sealing member 46 are both sealingly attached to the inner wall of the first air duct 311. Of course, in the case where the mounting frame 42 is not arranged, the second annular sealing member 46 can also be arranged on the shell 41 of the wire scrap filtering device 4.

[0140] Exemplarily, the first annular sealing member 45 is arranged at one end of the shell 41 close to the plug-in interface 3112 of the drying air duct 31, and the second annular sealing member 46 is arranged at one end of the mounting frame 42 away from the plug-in interface 3112, specifically, the second annular sealing member 46 is arranged on the first frame 421, and the first annular sealing member 45 and the second annular sealing member 46 are both sealingly attached to the inner wall of the first air duct 311. Of course, in the case where the mounting frame 42 is not arranged, the second annular sealing member 46 can also be arranged on the shell 41 of the wire scrap filtering device 4.

[0141] Preferably, as shown in the drawings, the wire scrap filtering device 4 is provided with a first annular sealing member 45 at one end close to the plug-in interface 3112 of the drying air duct 31, and is provided with a second annular sealing member 46 at the other end, the first annular sealing member 45 and the second annular sealing member 46 are both sealingly attached to the inner wall of the drying air duct 31, and the outer diameter of the first annular sealing member 45 is larger than that of the second annular sealing member 46. Figure 10 Figure 12 ​​​As shown in the drawings, the line debris filtering device 4 is provided with a second annular groove 4211, and the second annular sealing member 46 is a second annular sealing ring arranged in the second annular groove 4211.

[0142] Exemplarily, the first frame 421 of the mounting frame 42 of the line debris filtering device 4 is provided with the second annular groove 4211, and the second annular sealing ring is arranged in the second annular groove 4211.

[0143] Preferably, as shown in the drawings, Figure 7 and Figure 8 As shown in the drawings, the inner wall of the drying air duct 31 is provided with a blocking positioning structure 3113 away from the plug-in port 3112, and the blocking positioning structure 3113 is in abutting fit with the line debris filtering device 4 to position the line debris filtering device 4 at a set installation position.

[0144] Exemplarily, the blocking positioning structure 3113 is arranged on the inner wall of the first air duct 311, and when the end of the line debris filtering device 4 abuts against the blocking positioning structure 3113 during the process of inserting the line debris filtering device 4 into the first air duct 311, the line debris filtering device 4 cannot continue to advance, indicating that the line debris filtering device 4 is installed in place.

[0145] It should be noted that those skilled in the art can set the blocking positioning structure 3113 as a blocking positioning plate, a blocking positioning rib, or a blocking positioning block, etc. in actual application, and the adjustment and change of the specific structure form of the blocking positioning structure 3113 do not deviate from the principles and scope of the present application, and should be limited within the protection scope of the present application.

[0146] Preferably, as shown in the drawings, Figure 7 and Figure 8 As shown in the drawings, the blocking positioning structure 3113 is an annular positioning rib formed on the inner wall of the drying air duct 31.

[0147] Exemplarily, a ring of annular positioning ribs is arranged along the inner wall of the first air duct 311, and the annular positioning ribs protrude from the inner wall of the first air duct 311 to the inside of the first air duct 311, and the outer shell 41 or the mounting frame 42 of the line debris filtering device 4 abuts against the annular positioning ribs during the installation of the line debris filtering device 4.

[0148] Preferably, as shown in the drawings, Figure 7 , Figure 8 and Figure 12 As shown in the drawings, the side of the annular positioning rib facing the plug-in port 3112 of the drying air duct 31 is provided with a first inclined surface 31131, and the line debris filtering device 4 is provided with a second inclined surface 4212, and the first inclined surface 31131 abuts against the second inclined surface 4212.

[0149] Exemplarily, the second inclined surface 4212 is arranged on the first frame 421 of the mounting frame 42 of the wire debris filtering device 4, and the first inclined surface 31131 in the first air duct 311 abuts against the second inclined surface 4212 on the mounting frame 42 of the wire debris filtering device 4 during the process of mounting the wire debris filtering device 4.

[0150] Those skilled in the art will appreciate that a combination of features of different embodiments implies within the scope of the application and forms different embodiments, although some embodiments herein include certain features rather than others included in other embodiments. For example, in the claims of the application, any of the claimed embodiments can be used in any combination.

[0151] So far, the technical scheme of the utility model has been described in combination with the preferred embodiments shown in the drawings, but those skilled in the art can easily understand that the protection scope of the utility model is obviously not limited to these specific embodiments. Those skilled in the art can make equivalent changes or replacements to the related technical features without deviating from the principles of the utility model, and the technical schemes after the changes or replacements will fall within the protection scope of the utility model.

Claims

1. A drying apparatus, characterized by, The drying equipment comprises a box body (1) and a drying cylinder, a drying air duct (31), a thread chip filtering device (4), an air inlet pipe (51) and an air outlet pipe (52) installed in the box body (1), the drying air duct (31) is connected with the drying cylinder, the thread chip filtering device (4) is installed in the drying air duct (31), a fresh air inlet (3114) is arranged on the drying air duct (31), the fresh air inlet (3114) is communicated with one end of the air inlet pipe (51), a fresh air outlet is arranged on the drying cylinder, the fresh air outlet is communicated with one end of the air outlet pipe (52), and the other end of the air outlet pipe (52) is communicated with an air outlet on a front panel of the box body (1).

2. The drying apparatus according to claim 1, characterized by The drying equipment further comprises a first electric valve (53) and a second electric valve (54) installed on the air inlet pipe (51) and the air outlet pipe (52) respectively, and the first electric valve (53) and the second electric valve (54) are used for controlling the on-off of the air inlet pipe (51) and the air outlet pipe (52) respectively.

3. The drying apparatus according to claim 1, characterized by The thread chip filtering device (4) comprises a shell (41) and a first filter screen installed on the shell (41), a first side of the shell (41) is provided with an air inlet (411), a second side of the shell (41) is provided with an air outlet (412), one of the first side and the second side is a length direction side of the shell (41), and the other of the first side and the second side is a width direction side of the shell (41), and the first filter screen is installed at the air outlet (412).

4. The drying apparatus according to claim 3, characterized in that, The thread chip filtering device (4) further comprises a second filter screen between the air inlet (411) and the first filter screen.

5. The drying apparatus according to claim 4, characterized in that, The thread chip filtering device (4) further comprises a mounting frame (42) detachably installed in the shell (41), the mounting frame (42) can be pulled out from the air inlet (411), and the second filter screen is arranged on the mounting frame (42).

6. The drying apparatus according to claim 5, characterized in that, The mounting frame (42) comprises a first frame (421), a second frame (422) and a connecting plate (423), a first end of the first frame (421) is connected with a first end of the second frame (422), a second end of the first frame (421) and a second end of the second frame (422) are connected through the connecting plate (423), the first frame (421) is located at the air inlet (411), the second filter screen is arranged on the second frame (422), and the connecting plate (423) is arranged opposite to the second side.

7. The drying apparatus according to claim 4, wherein The second filter screen is in a circular arc shape and protrudes towards the first filter screen.

8. The drying apparatus according to claim 1, wherein The fresh air inlet (3114) is located upstream or downstream of the thread chip filtering device (4); and / or The fresh air outlet is arranged at the top of the drying cylinder.

9. The drying apparatus according to claim 1, wherein The other end of the air inlet pipe (51) is communicated with an air inlet on a back panel of the box body (1); and / or The drying air duct (31) is located above the drying cylinder, and the exhaust pipe (52) is located between the drying cylinder and the drying air duct (31).

10. The drying apparatus according to any one of claims 1 to 9, characterized in that, The drying air duct (31) comprises a first air duct (311) and a second air duct (312) in communication, the first air duct (311) and the second air duct (312) are both located above the drying cylinder, the first air duct (311) extends in the front-rear direction, the second air duct (312) extends in the left-right direction and is close to the front end of the drying cylinder, the lint filtering device (4) is installed in the first air duct (311), the fresh air inlet (3114) is arranged in the first air duct (311), and the drying equipment further comprises a heat pump module, an evaporator (33) and a condenser of the heat pump module are installed in the second air duct (312), and the evaporator (33) is located upstream of the condenser.