Clothes drying equipment

Abstract

The utility model relates to clothes drying equipment, which comprises a drum, a drying device, a drying device and a control device, and is characterized in that the drum comprises a drum cavity for accommodating clothes; the fan cover is located on the rear portion of the roller and provided with a mounting hole, and the fan cover is used for guiding hot air flow in the clothes drying equipment into the roller cavity; the first motor comprises a driving shaft which is coaxially connected with the roller; the bearing assembly comprises a bearing and a bearing seat, the bearing seat is mounted in the mounting hole, and the driving shaft is mounted on the bearing seat through the bearing. According to the clothes drying equipment, the roller is directly driven to rotate through the first motor, the driving shaft of the first motor is installed on the fan cover through the bearing seat, driving is more stable and more efficient, transmission is more stable, and the service life is longer.

Description

Technical Field

[0001] This utility model relates to the field of clothing processing equipment technology, and in particular to a clothing drying device. Background Technology

[0002] Clothes drying equipment is a widely used household appliance that can quickly dry clothes. Existing clothes drying equipment uses a power unit consisting of a motor and a belt to drive the drum to rotate. This power unit occupies a large space, is noisy, generates heat, and increases energy consumption. In addition, the belt is easily damaged, which reduces the service life of the clothes drying equipment. Utility Model Content

[0003] Based on the aforementioned deficiencies in the existing technology, the purpose of this utility model is to provide a clothes drying device that directly drives the drum to rotate via a first motor, resulting in more stable and efficient driving. Furthermore, the drive shaft of the first motor is mounted on the fan shroud via a bearing housing, leading to more stable transmission and a longer service life.

[0004] Therefore, the present invention provides the following technical solution.

[0005] This utility model provides a clothes drying device, the clothes drying device comprising:

[0006] A drum, which includes a cavity for holding clothes;

[0007] A fan hood, located at the rear of the drum and having mounting holes, is used to guide the hot airflow from the clothes drying equipment into the drum cavity;

[0008] A first motor includes a drive shaft for coaxial connection with the roller;

[0009] A bearing assembly comprising a bearing and a bearing housing, the bearing housing being mounted in the mounting hole, and the drive shaft being mounted to the bearing housing via the bearing.

[0010] Optionally, the bearing housing is a sheet metal structure.

[0011] Optionally, the bearing housing is bent to form a bearing mounting structure and a support structure, the shroud is provided with a groove, and the mounting hole is located in the groove; the bearing mounting structure is used to install the bearing in the mounting hole, and the support structure abuts against the groove wall.

[0012] Optionally, the bearing housing includes a first bearing cover and a second bearing cover, wherein the first bearing cover is bent to form a first limiting portion and the second bearing cover is bent to form a second limiting portion;

[0013] The first bearing cover is connected to the second bearing cover so that the first limiting part and the second limiting part together form a bearing mounting structure, and the bearing is clamped in the bearing mounting structure.

[0014] Optionally, both the first limiting part and the second limiting part are annular, and both have an L-shaped longitudinal section.

[0015] Optionally, the first bearing cover includes a first support portion, and the second bearing cover includes a second support portion;

[0016] The first support portion abuts against the second support portion to form a first support structure, and the first support structure abuts against the wind shield along the axial direction of the drive shaft.

[0017] Optionally, the first bearing cover is bent to form a third support portion, and the second bearing cover is bent to form a fourth support portion;

[0018] The third support portion abuts against the fourth support portion to form a second support structure, and the second support structure abuts against the wind shield along the radial direction of the drive shaft.

[0019] Optionally, the shroud has a groove, and the mounting hole is located in the groove;

[0020] The first support structure abuts against the bottom wall of the groove along the axial direction, and the second support structure abuts against the side wall of the groove along the radial direction;

[0021] And / or, the first limiting part, the first supporting part, and the third supporting part are connected in sequence;

[0022] And / or, the second limiting part, the second supporting part and the fourth supporting part are connected in sequence;

[0023] And / or, the first support portion and the second support portion are in surface-to-surface contact;

[0024] And / or, the third support portion and the fourth support portion are in surface-to-surface contact.

[0025] Optionally, the connection method between the first bearing cover and the second bearing cover includes riveting or welding.

[0026] Optionally, the bottom of the drum is provided with a plurality of air inlet holes communicating with the drum cavity;

[0027] The clothes drying equipment also includes a rear outer shell, and the air hood is located between the rear outer shell and the bottom of the drum; a first air duct is formed between the air hood and the outer surface wall of the bottom of the drum, and the first air duct is connected to the air inlet.

[0028] And / or, the first motor includes a rotor, and the drive shaft is fixed to the rotor by screws;

[0029] And / or, the first motor includes a rotor, which is splinedly connected to the drive shaft via a connector; the connector abuts against the rear end surface wall of the inner ring of the bearing;

[0030] And / or, the front end of the drive shaft extends radially to form a first abutment portion, which abuts against and is riveted to the outer surface wall of the bottom of the roller.

[0031] This utility model has the following technical effects:

[0032] This invention provides a clothes drying device that directly drives the drum rotation via a first motor, eliminating the need for a belt structure, reducing space occupation, and achieving energy saving and noise reduction. The drive is more stable, more efficient, and has a longer service life. Furthermore, the drive shaft of the first motor is mounted to the fan shroud via a bearing housing. Compared to solutions that directly connect the bearing to the fan shroud, this solution allows the bearing housing to directly bear the load, preventing deformation of the fan shroud's mounting holes due to prolonged concentrated stress, which could lead to decreased stability in the transmission between the first motor and the drum. In other words, this solution provides more stable transmission. Attached Figure Description

[0033] Figure 1 This is a structural cross-sectional view of the clothes drying equipment of this utility model. Figure 1 ;

[0034] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0035] Figure 3 This is an exploded view of the bearing assembly in one embodiment of the present invention;

[0036] Figure 4 This is a three-dimensional structural diagram of a bearing assembly according to one embodiment of the present invention;

[0037] Figure 5 This is a rear view of the bearing assembly in another embodiment of the present invention;

[0038] Figure 6 This is a rear view of the bearing assembly in another embodiment of the present invention;

[0039] Figure 7 This is an exploded view of the assembly structure of the wind shield and base of this utility model;

[0040] Figure 8 This is a rear view of the assembly structure of the wind shield and bearing assembly of this utility model;

[0041] Figure 9for Figure 8 Enlarged view at point B

[0042] Figure 10 This is a structural cross-sectional view of the clothes drying equipment of this utility model. Figure 2 ;

[0043] Figure 11 This is a bottom view of a partial structure of the clothes drying device of this utility model;

[0044] Figure 12 for Figure 10 Enlarged view of point C in the middle.

[0045] Explanation of reference numerals in the attached figures

[0046] 100. Clothes drying equipment;

[0047] 1. Drum; 11. Cylinder cavity; 12. Bottom of drum; 121. Air inlet;

[0048] 2. Fan cover; 21. Support body; 211. Reinforcing structure; 212. Air inlet structure; 2121. Air inlet channel; 22. Cover structure; 221. Mounting hole; 2211. Second abutment part; 222. Groove; 223. First inner recess; 224. Second inner recess;

[0049] 3. First motor; 31. Drive shaft; 311. First abutment part; 312. Screw hole; 32. Rotor; 33. Screw; 34. Connecting piece; 35. Stator;

[0050] 4. Bearing assembly; 41. Bearing; 42. Bearing housing; 421. First bearing cover; 4211. First limiting part; 4212. First support part; 42121. Protrusion; 4213. Third support part; 422. Second bearing cover; 4221. Second limiting part; 4222. Second support part; 42221. Recess; 4223. Fourth support part;

[0051] 5. Housing; 51. Rear housing; 52. Base; 53. Front housing; 531. Clothing loading port;

[0052] 61. First air duct; 611. First air guide channel; 612. Second air guide channel; 62. Second air duct; 63. Third air duct;

[0053] 71. Rivet; 73. Second seal;

[0054] 8. Fan assembly; 81. Second motor; 82. Impeller;

[0055] 91. Evaporator; 92. Condenser; 93. Compressor. Detailed Implementation

[0056] To make the technical solution and beneficial effects of this utility model more apparent and understandable, a detailed description is provided below by listing specific embodiments. Unless otherwise defined, the technical and scientific terms used herein have the same meanings as those in the technical field to which this application pertains.

[0057] In the description of this utility model, unless otherwise expressly defined, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "height", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the purpose of simplifying the description of this utility model and do not indicate that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. That is, they should not be construed as limitations on this utility model.

[0058] In this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating the relative importance of the indicated features or the number of indicated technical features. Therefore, a feature specified as "first" or "second" can explicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two; "several" means at least one; unless otherwise expressly defined.

[0059] In this utility model, unless otherwise explicitly defined, the terms "installation," "connection," "linking," "fixing," and "setting," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral molding; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can also refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0060] In this utility model, unless otherwise explicitly defined, the terms "above," "on top of," "above," "over," "below," "below," "below," or "below" for "first feature above second feature" can refer to direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. Furthermore, "above," "above," and "over" for "first feature above second feature" can mean the first feature is directly above or diagonally above the second feature, or simply indicates that the horizontal height of the first feature is higher than the horizontal height of the second feature. Similarly, "below," "below," and "below" for "first feature below second feature" can mean the first feature is directly below or diagonally below the second feature, or simply indicates that the horizontal height of the first feature is lower than the horizontal height of the second feature.

[0061] In this utility model, "front," "rear," "upper," and "lower" all refer to... Figure 1 The markings in the text shall prevail.

[0062] The following is based on Figures 1 to 12 This invention provides a detailed description of the clothing drying equipment.

[0063] In this embodiment, such as Figures 1 to 4 , Figure 8 , Figure 9 As shown, the clothes drying equipment 100 includes a drum 1, a fan shroud 2, a first motor 3, and a bearing assembly 4. The drum 1 includes a drum cavity 11 for accommodating clothes. The fan shroud 2 is located at the rear of the drum 1 and is used to guide hot airflow from the clothes drying equipment 100 into the drum cavity 11 to dry the clothes in the drum cavity 11. The fan shroud 2 has a mounting hole 221. The first motor 3 includes a drive shaft 31, which is coaxially connected to the drum 1. The drive shaft 31 and the drum 1 can be directly coaxially connected, or they can be coaxially connected by means of an adapter (such as an adapter block). The bearing assembly 4 includes a bearing 41 and a bearing housing 42. The bearing housing 42 is installed in the mounting hole 221. The inner ring of the bearing 41 is fitted onto the outer circumference of the drive shaft 31 with an interference fit. The outer ring of the bearing 41 is installed in the bearing housing 42. Thus, the drive shaft 31 is installed in the bearing housing 42 via the bearing 41.

[0064] In the above technical solution, the first motor 3 directly drives the drum 1 to rotate, eliminating the need for a belt structure, reducing space occupation, saving energy and reducing noise, and providing a more stable, efficient, and longer service life. Furthermore, the drive shaft 31 of the first motor 3 is mounted on the fan shroud 2 via a bearing housing 42. Compared to technical solutions that directly connect the bearing 41 to the fan shroud 2, this solution allows the bearing housing 42 to directly bear the load, preventing deformation of the mounting hole 221 of the fan shroud 2 due to prolonged concentrated force, which would otherwise lead to decreased stability in the transmission between the first motor 3 and the drum 1. In other words, this solution provides a more stable transmission.

[0065] In one embodiment, the hood 2 is made of plastic and has good heat insulation properties. During the process of the hood 2 introducing hot airflow into the cylinder cavity 11, it can reduce heat loss and improve drying efficiency.

[0066] In one embodiment, the bearing housing 42 is a sheet metal structure with high structural strength, which is beneficial to transmission stability.

[0067] Furthermore, the bearing housing 42 is bent to form the bearing mounting structure and support structure. The bearing housing 42 is a sheet metal structure; the bending process improves its structural strength. For example... Figure 2 and Figure 7As shown, the shroud 2 has a groove 222, and the mounting hole 221 is located in the groove 222. The bearing mounting structure is used to install the bearing 41 in the mounting hole 221. The support structure abuts against the groove wall of the groove 222. In this way, part of the load and its own weight borne by the bearing seat 42 are transmitted to the hole wall of the mounting hole 221 through the bearing mounting structure, and the remaining part of the force is transmitted to the groove wall of the groove 222 through the support structure, so as to avoid excessive concentrated force on the mounting hole 221.

[0068] In one implementation, such as Figures 2 to 4 As shown, the bearing housing 42 includes a first bearing cover 421 and a second bearing cover 422. The first bearing cover 421 is bent to form a first limiting portion 4211, and the second bearing cover 422 is bent to form a second limiting portion 4221. The first bearing cover 421 and the second bearing cover 422 are connected so that the first limiting portion 4211 and the second limiting portion 4221 together form a bearing mounting structure, in which the bearing 41 is clamped. In this design, the bearing housing 42 is configured as a split structure. When assembling the bearing 41, the first bearing cover 421 and the second bearing cover 422 are first aligned and clamped to hold the bearing 41, and then the first bearing cover 421 and the second bearing cover 422 are connected, making the assembly of the bearing 41 convenient. In addition, since the bearing mounting structure is a clamping structure, the first limiting portion 4211 and the second limiting portion 4221 each need to be bent at least twice, further improving the structural strength of the bearing housing 42, which is a sheet metal structure.

[0069] Furthermore, such as Figures 2 to 4 As shown, both the first limiting part 4211 and the second limiting part 4221 are annular, which helps to balance the force on the first limiting part 4211 and the second limiting part 4221. In addition, the longitudinal sections of the first limiting part 4211 and the second limiting part 4221 are both L-shaped, and together they form an annular clamping groove with a longitudinal section roughly U-shaped, which helps to stably clamp the bearing 41. Of course, the shape of the first limiting part 4211 and the second limiting part 4221 is not limited to annular; they can also be composed of multiple limiting blocks arranged in a circumferential array, as long as the central axis of the bearing mounting structure and the bearing 41 coincide.

[0070] In one implementation, such as Figure 2 and Figure 3As shown, the first bearing cover 421 includes a first support portion 4212, and the second bearing cover 422 includes a second support portion 4222. The first support portion 4212 and the second support portion 4222 abut against each other to form a first support structure. The first support structure abuts against the fan cover 2 along the axial direction of the drive shaft 31. Thus, a portion of the force exerted by the bearing seat 42 on the fan cover 2 is applied to the fan cover 2 along the axial direction of the drive shaft 31. The abutment between the first support portion 4212 and the second support portion 4222 includes, but is not limited to, surface-to-surface contact, point-to-surface contact, line-to-surface contact, and point-to-point contact. Preferably, in order to better distribute the force exerted by the bearing seat 42 on the fan cover 2 along the axial direction of the drive shaft 31, the first support portion 4212 and the second support portion 4222 are in surface-to-surface contact. "Surface-to-surface contact" means that the first support portion 4212 and the second support portion 4222 are in contact through at least two flat surfaces.

[0071] Furthermore, such as Figure 2 and Figure 3 As shown, the first bearing cover 421 is bent to form the third support portion 4213, and the second bearing cover 422 is bent to form the fourth support portion 4223. The third support portion 4213 and the fourth support portion 4223 abut against each other to form a second support structure. The second support structure abuts against the fan cover 2 radially along the drive shaft 31. In this way, part of the force exerted by the bearing seat 42 on the fan cover 2 is applied to the fan cover 2 radially along the drive shaft 31. That is, the first support structure and the second support structure together constitute the support structure of the bearing seat 42. By setting the support structure, the force exerted by the bearing seat 42 on the fan cover 2 is dispersed, thereby improving the service life of the fan cover 2 and ensuring transmission stability. The third support portion 4213 and the fourth support portion 4223 abut against each other in ways including but not limited to surface contact, point-to-surface contact, line-to-surface contact, and point-to-point contact. Preferably, in order to better disperse the force applied by the bearing housing 42 to the wind cover 2 along the radial direction of the drive shaft 31, the third support portion 4213 and the fourth support portion 4223 are in surface contact. "Surface contact" means that the third support portion 4213 and the fourth support portion 4223 are in contact through at least two flat surfaces.

[0072] Furthermore, such as Figure 2 , Figure 7 and Figure 9 As shown, the first support structure abuts against the bottom wall of the groove 222 along the axial direction of the drive shaft 31, and the second support structure abuts against the side wall of the groove 222 along the radial direction of the drive shaft 31. The first limiting part 4211 is connected to the mounting hole 221, and the second limiting part 4221 is located outside the rear side of the mounting hole 221. Furthermore, to ensure balanced force distribution on the groove wall of the groove 222, the groove 222 is annular, and the circumferential outer wall of the bearing seat 42 is circular. Of course, the shape of the groove 222 is not limited to annular; the shape of the groove 222 also includes, but is not limited to, square, rectangle, polygon, ellipse, and triangle, such as... Figure 5 and Figure 6 As shown, the circumferential outer wall of the bearing housing 42 is not limited to a circle. The shape of the circumferential outer wall of the bearing housing 42 may include, but is not limited to, a square, a rectangle, a polygon, an ellipse, or a triangle, as long as the shape of the groove 222 matches that of the circumferential outer wall of the bearing housing 42.

[0073] In one embodiment, the first limiting part 4211, the first supporting part 4212 and the third supporting part 4213 are connected in sequence, and the second limiting part 4221, the second supporting part 4222 and the fourth supporting part 4223 are connected in sequence, and the overall structure of the bearing seat 42 is simple.

[0074] In one embodiment, the connection method between the first bearing cover 421 and the second bearing cover 422 includes, but is not limited to, riveting or welding. Riveting includes using rivets or rivetless connection (TOX riveting). Preferably, the connection method between the first bearing cover 421 and the second bearing cover 422 is TOX riveting, which is convenient to operate, eliminates the need for rivets or welding materials, and reduces material costs. Specifically, when the first bearing cover 421 and the second bearing cover 422 are opposite each other and clamp the bearing 41, as... Figure 2 As shown, the first support portion 4212 and the second support portion 4222 abut against each other. High pressure is applied to the area where the two need to be connected. Under the action of high pressure, the first support portion 4212 undergoes plastic deformation in the direction toward the second support portion 4222 to form a protrusion 42121, and the second support portion 4222 undergoes plastic deformation in the direction away from the first support portion 4212 to form a recess 42221. The connection between the first bearing cover 421 and the second bearing cover 422 is achieved through the cooperation of the protrusion 42121 and the recess 42221.

[0075] In one implementation, such as Figure 2 As shown, the first motor 3 includes a rotor 32, and the drive shaft 31 is fixed to the rotor 32 by screws 33, which makes assembly convenient.

[0076] In one implementation, such as Figure 2 As shown, the rotor 32 is splinedly connected to the drive shaft 31 via the connector 34, so that the rotational force output by the rotor 32 can be transmitted to the drive shaft 31 via the connector 34. The connector 34 abuts forward against the rear end surface wall of the inner ring of the bearing 41. The front end of the mounting hole 221 extends radially inward to form a second abutment portion 2211, which abuts rearward against the bearing housing 42 to further prevent axial movement of the bearing assembly 4. In addition, the rear end of the drive shaft 31 is provided with a threaded hole 312, and a screw 33 is screwed into the threaded hole 312 so that the nut of the screw 33 presses forward against the connector 34, thereby causing the connector 34 to abut forward against the inner ring of the bearing 41.

[0077] In one implementation, such as Figure 2 As shown, the first motor 3 includes a stator 35, which is mounted on the rear wall of the shroud 2 by fasteners. The stator 35 cooperates with the rotor 32 so that the rotor 32 drives the drive shaft 31 to rotate.

[0078] In one implementation, such as Figure 2 As shown, the front end of the drive shaft 31 extends radially to form a first abutment portion 311. The first abutment portion 311 abuts against the outer surface wall of the bottom 12 of the roller 1 and is riveted together with rivets 71, making assembly quick and secure. Of course, the connection method between the drive shaft 31 and the bottom 12 is not limited to riveting; it can also be bolted or other connection methods.

[0079] In one implementation, such as Figure 1 and Figure 2 As shown, the bottom 12 of the drum 1 is provided with multiple air inlets 121 communicating with the drum cavity 11. The clothes drying equipment 100 also includes a rear outer shell 51, which is a sheet metal part. The fan hood 2 is located between the rear outer shell 51 and the bottom 12 of the drum 1. A first air duct 61 is formed between the fan hood 2 and the outer surface wall of the bottom 12, and the first air duct 61 communicates with the air inlets 121. In this solution, the first air duct 61 is directly formed between the fan hood 2 and the outer surface wall of the bottom 12. Compared with the prior art, which forms an air duct between the outer surface wall of the bottom 12 and the rear outer shell 51, this solution can avoid the high-temperature dry air (hot airflow) generated in the clothes drying equipment 100 from directly contacting the rear outer shell 51 during the process of entering the drum cavity 11, thus avoiding heat loss and shortening the drying time and reducing energy consumption. In addition, the rear outer shell 51 covers the fan hood 2, which can reduce the heat loss in the first air duct 61 and reduce the noise generated when the clothes drying equipment 100 is operating.

[0080] In one implementation, such as Figure 1 As shown, the housing 5 of the clothes drying equipment 100 also includes a base 52 and a front housing 53. The front housing 53 has a clothes inlet 531. When using the clothes drying equipment 100, the user puts clothes into the drum 1 through the clothes inlet 531. The front housing 53 and the rear housing 51 are respectively connected to the base 52 by fasteners. The front part of the drum 1 is rotatably connected to the front housing 53, and the rear part of the drum 1 is rotatably connected to the rear housing 51. The drum 1 is supported by the front housing 53 and the rear housing 51. Of course, the housing 5 also includes side plates and a top plate, the structure of which can refer to any existing clothes dryer and will not be described in detail here. The base 52 includes a second air duct 62, and a third air duct 63 is formed between the front wall of the drum 1 and the front housing 53. The second air duct 62, the first air duct 61, the drum cavity 11, the third air duct 63 and the second air duct 62 are connected in sequence to form a circulating airflow channel. Figure 1 , Figure 10 and Figure 11As shown, the clothes drying equipment 100 includes a fan assembly 8, an evaporator 91, a condenser 92, a compressor 93, and a fan assembly 8. The fan assembly 8 includes a second motor 81 and an impeller 82. The evaporator 91, the condenser 92, and the compressor 93 are all located in the second air duct 62. Furthermore, the evaporator 91 and the condenser 92 are arranged sequentially along the airflow direction.

[0081] When the clothes drying equipment 100 starts the drying mode, the first motor 3 drives the drum 1 to rotate, and the fan assembly 8 starts, causing the airflow in the second air duct 62 to flow towards the first air duct 61. During this process, the compressor 93 works, causing the condenser 92 to heat the air to form high-temperature dry air. The high-temperature dry air flows into the first air duct 61 under the power of the fan assembly 8, and then enters the drum cavity 11 of the drum 1 through the air inlet 121, absorbing the moisture in the clothes to form humid and hot air. The humid and hot air flows through the third air duct 63 and the second air duct 62 in sequence. In the second air duct 62, the humid and hot air is first cooled by the evaporator 91 to form low-temperature dry air, and then heated by the condenser 92 to form high-temperature dry air. The high-temperature dry air then enters the drum cavity 11 of the drum 1 in sequence through the first air duct 61 and the air inlet 121. Through the circulation of airflow, the clothes are dried.

[0082] It should be understood that the working principles of compressor 93, evaporator 91, and condenser 92 can be referenced from the working principles of corresponding structures in any existing clothes drying equipment. Here, the corresponding heat release and heat absorption principles are briefly explained. Specifically, compressor 93 compresses low-temperature, low-pressure gas into high-temperature, high-pressure gas. The high-temperature, high-pressure gas is transformed into a high-temperature, medium-pressure gas-liquid mixture (working fluid) through a throttling device. The working fluid flows between compressor 93, evaporator 91, and condenser 92. The working fluid first flows through condenser 92, where it changes from gas to liquid and releases heat to the surroundings, so that condenser 92 heats the low-temperature dry air into high-temperature dry air. Then, the working fluid flows through evaporator 91, where it changes from liquid to gas and absorbs heat from the surroundings, so that evaporator 91 cools the humid, hot air into low-temperature dry air.

[0083] In one implementation, such as Figure 1 , Figure 2 , Figure 7 and Figure 8As shown, the hood 2 includes a supporting body 21 and a cover structure 22. The cover structure 22 is connected above the supporting body 21, and the supporting body 21 is supported on the base 52. The cover structure 22 and the outer wall of the roller 1 form a first air duct 61. The supporting body 21 includes a reinforcing structure 211 and an air inlet structure 212. The reinforcing structure 211 is used to increase the contact area between the supporting body 21 and the base 52 to ensure that the supporting body 21 can stably support the rotation of the roller 1. The air inlet structure 212 is provided with an air inlet channel 2121. In this solution, the hood 2 has the dual functions of forming an air duct and supporting the rotation of the roller 1. Furthermore, by adding a reinforcing structure 211 to the supporting body 21, the structural strength of the hood 2 is improved, thereby increasing the load capacity of the hood 2 and extending its service life.

[0084] like Figure 12 As shown, the casing structure 22 has a first recess 223 and a second recess 224 on the side facing the roller 1. The first recess 223 surrounds the second recess 224, and the depth of the first recess 223 is greater than the depth of the second recess 224. The first recess 223 and the outer wall of the roller 1 form a first air guide channel 611, and the second recess 224 and the outer wall of the roller 1 form a second air guide channel 612. The first air guide channel 611 and the second air guide channel 612 are connected to form a first air duct 61. The first recess 223 has an opening (not shown in the figure) on the side facing the air inlet channel 2121, and the first air guide channel 611 is connected to the air inlet channel 2121 through the opening.

[0085] During the drying process, such as Figure 10 and Figure 12 As shown, the high-temperature dry air in the second air duct 62 enters the first air guide duct 611 through the air inlet duct 2121. Part of the airflow in the first air guide duct 611 flows along the first air guide duct 611 first, then flows to the second air guide duct 612 and enters the drum 1. Another part of the airflow enters the first air guide duct 611 and then directly enters the second air guide duct 612 before entering the drum 1. In this design, by improving the structure of the cover structure 22, it is beneficial for the airflow in the first air duct 61 to flow evenly into the drum 1, thus improving the drying effect.

[0086] In one implementation, such as Figure 1 and Figure 12As shown, since the roller 1 rotates relative to the shroud 2, a gap is required between the roller 1 and the shroud 2 to avoid friction between them. However, the existence of this gap will cause the first air duct 61 to connect with the external space of the shroud 2. In this solution, in order to prevent the high-temperature dry air in the first air duct 61 from leaking out from the gap between the shroud 2 and the bottom of the cylinder 12, a second sealing element 73 is provided between the shell structure 22 of the shroud 2 and the bottom of the cylinder 12. The second sealing element 73 is connected to the front side wall of the shroud 2. The second sealing element 73 and the shroud 2 are both fixed. The second sealing element 73 is used to seal the gap between the shroud 2 and the bottom of the cylinder 12 to avoid heat loss.

[0087] It should be understood that the above embodiments are exemplary and are not intended to encompass all possible implementations included in the claims. Various modifications and changes can be made to the above embodiments without departing from the scope of this disclosure. Similarly, the various technical features of the above embodiments can be arbitrarily combined to form other embodiments of this utility model that may not be explicitly described. Therefore, the above embodiments only illustrate several implementations of this utility model and do not limit the scope of protection of this utility model patent.

Claims

1. A clothes drying device, characterized in that, The clothes drying equipment (100) includes: A drum (1) includes a tubular cavity (11) for receiving clothing; A fan hood (2) is located at the rear of the drum (1) and has a mounting hole (221). The fan hood (2) is used to introduce the hot airflow in the clothes drying equipment (100) into the drum cavity (11). A first motor (3) includes a drive shaft (31) for coaxial connection with the roller (1); The bearing assembly (4) includes a bearing (41) and a bearing housing (42), the bearing housing (42) being mounted in the mounting hole (221), and the drive shaft (31) being mounted in the bearing housing (42) via the bearing (41).

2. The clothes drying equipment according to claim 1, characterized in that, The bearing housing (42) is a sheet metal structure.

3. The clothes drying equipment according to claim 2, characterized in that, The bearing housing (42) is bent to form a bearing mounting structure and a support structure. The shroud (2) is provided with a groove (222), and the mounting hole (221) is located in the groove (222). The bearing mounting structure is used to install the bearing (41) in the mounting hole (221), and the support structure abuts against the groove wall of the groove (222).

4. The clothes drying equipment according to claim 2 or 3, characterized in that, The bearing housing (42) includes a first bearing cover (421) and a second bearing cover (422), wherein the first bearing cover (421) is bent to form a first limiting part (4211) and the second bearing cover (422) is bent to form a second limiting part (4221); The first bearing cover (421) is connected to the second bearing cover (422) so that the first limiting part (4211) and the second limiting part (4221) together form a bearing mounting structure, and the bearing (41) is clamped in the bearing mounting structure.

5. The clothes drying equipment according to claim 4, characterized in that, Both the first limiting part (4211) and the second limiting part (4221) are annular, and both have an L-shaped longitudinal section.

6. The clothes drying equipment according to claim 4, characterized in that, The first bearing cover (421) includes a first support portion (4212), and the second bearing cover (422) includes a second support portion (4222); The first support part (4212) abuts against the second support part (4222) to form a first support structure, and the first support structure abuts against the wind cover (2) along the axial direction of the drive shaft (31).

7. The clothes drying equipment according to claim 6, characterized in that, The first bearing cover (421) is bent to form a third support part (4213), and the second bearing cover (422) is bent to form a fourth support part (4223); The third support part (4213) abuts against the fourth support part (4223) to form a second support structure, and the second support structure abuts against the wind cover (2) radially along the drive shaft (31).

8. The clothes drying equipment according to claim 7, characterized in that, The wind shield (2) is provided with a groove (222), and the mounting hole (221) is located in the groove (222); The first support structure abuts against the bottom wall of the groove (222) along the axial direction, and the second support structure abuts against the side wall of the groove (222) along the radial direction; And / or, the first limiting part (4211), the first supporting part (4212) and the third supporting part (4213) are connected in sequence; And / or, the second limiting part (4221), the second supporting part (4222) and the fourth supporting part (4223) are connected in sequence; And / or, the first support portion (4212) and the second support portion (4222) are in surface-to-surface contact; And / or, the third support portion (4213) and the fourth support portion (4223) are in surface-to-surface contact.

9. The clothes drying equipment according to claim 4, characterized in that, The connection method between the first bearing cover (421) and the second bearing cover (422) includes riveting or welding.

10. The clothes drying equipment according to any one of claims 1-3, characterized in that, The bottom (12) of the roller (1) is provided with a plurality of air inlet holes (121) communicating with the cylinder cavity (11); The clothes drying equipment (100) also includes a rear outer shell (51), and the air hood (2) is located between the rear outer shell (51) and the bottom (12) of the drum (1); a first air duct (61) is formed between the air hood (2) and the outer surface wall of the bottom (12), and the first air duct (61) is connected to the air inlet (121); And / or, the first motor (3) includes a rotor (32), and the drive shaft (31) is fixed to the rotor (32) by screws (33); And / or, the first motor (3) includes a rotor (32) which is splinedly connected to the drive shaft (31) via a connector (34); the connector (34) abuts against the rear end surface wall of the inner ring of the bearing (41); And / or, the front end of the drive shaft (31) extends radially to form a first abutment portion (311), which abuts against and is riveted to the outer surface wall of the bottom (12) of the roller (1).

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