Clothes dryer

Abstract

The utility model relates to a clothes dryer. The clothes dryer comprises a machine shell and a clothes dryer body, the roller is rotatably connected to the machine shell and comprises a containing cavity used for containing clothes, and a plurality of air inlet holes are formed in the bottom of the roller; the fan cover is connected to the interior of the machine shell, the fan cover covers the outer side surface wall of the barrel bottom, a first air duct is formed between the fan cover and the barrel bottom, and the first air duct communicates with the multiple air inlet holes; the motor is located behind the fan cover and comprises a driving shaft, and the driving shaft penetrates through the fan cover and is coaxially connected with the roller. According to the clothes dryer, the roller is directly driven to rotate through the motor, a belt structure is omitted, occupied space is reduced, energy can be saved, noise can be reduced, driving is more stable and more efficient, the service life is longer, the fan cover is arranged between the machine shell and the bottom of the roller, and wind heat energy loss can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of clothing treatment equipment, in particular to a dryer. Background Art

[0002] A dryer is a household appliance that can quickly dry clothes and has a wide range of applications. The dryer mainly includes a drum, a casing, a base, and a power device, a fan, an evaporator, and a condenser disposed in the base. The power device includes a motor and a belt. The motor drives the drum to rotate through the belt. The condenser is used to heat air, and the evaporator is used to cool the humid and hot air.

[0003] When the dryer starts drying, under the power of the fan, the high-temperature and dry air formed by the condenser enters the drum, takes away the water vapor of the clothes in the drum, the humid and hot air generated in the drum flows into the evaporator, is cooled to remove moisture and forms low-temperature and dry air, the low-temperature and dry air flows into the condenser, is heated to form high-temperature and dry air, and the high-temperature and dry air enters the drum under the power of the fan to dry the clothes.

[0004] The power device of the existing dryer uses a belt for transmission, which occupies a large space, has a large noise, is prone to heat generation, increases energy consumption. In addition, the belt is easily damaged, resulting in a reduced service life of the dryer. Summary of the Utility Model

[0005] Based on the above defects in the prior art, the purpose of the present utility model is to provide a dryer, which directly drives the drum to rotate through a motor, eliminates the belt structure, reduces space occupation, can save energy and reduce noise, has a more stable and efficient drive, a longer service life, and moreover, by arranging a wind hood between the casing and the bottom of the drum, the loss of hot air heat energy can be reduced.

[0006] For this reason, the present utility model provides the following technical solutions.

[0007] The present utility model provides a dryer, which comprises:

[0008] A casing;

[0009] A drum, which is rotatably connected to the casing and includes a cavity for accommodating clothes, and a plurality of air inlet holes are provided at the bottom of the drum;

[0010] A wind hood, which is connected inside the casing, the wind hood covers the outer surface of the bottom of the drum, and a first air duct is formed between the two, and the first air duct is communicated with the plurality of air inlet holes;

[0011] A motor, which is located behind the wind hood and includes a drive shaft, and the drive shaft passes through the wind hood and is coaxially connected to the drum.

[0012] Optionally, the motor further includes a stator and a rotor that cooperate with each other. The stator is connected to the rear wall of the wind cover, and the rotor is coaxially connected to the drive shaft.

[0013] Optionally, the rear wall of the wind cover is provided with a recessed portion, and the recessed portion is provided with a protruding structure;

[0014] The stator is embedded in the recessed portion, and the stator is sleeved on the protruding structure and the two are in interference fit.

[0015] Optionally, the stator and the wind cover are connected by a first fastener.

[0016] Optionally, the rotor is embedded in the recessed portion.

[0017] Optionally, the rotor is splined to the drive shaft.

[0018] Optionally, a contact portion is formed by the front end of the drive shaft extending along the radial direction of the drive shaft. The contact portion abuts against the outer surface of the bottom of the cylinder and the two are connected by a second fastener.

[0019] Optionally, the wind cover is provided with a through hole, and the drive shaft is connected to the through hole through a bearing.

[0020] Optionally, a seal is provided between the wind cover and the bottom of the cylinder. The seal is connected to the front side wall of the wind cover to seal the gap between the wind cover and the bottom of the cylinder.

[0021] Optionally, the casing includes a front shell, a rear shell and a base, and the base includes a second air duct;

[0022] The front shell and the rear shell are respectively connected to the base. The front part of the drum is rotatably connected to the front shell and the rear part thereof is rotatably connected to the rear shell. The wind cover is connected to the base, and the first air duct is communicated with the second air duct.

[0023] Optionally, the wind cover is connected to the rear shell.

[0024] Optionally, the connection manner between the wind cover and the rear shell includes fastener connection, snap connection or buckle connection.

[0025] Optionally, the wind cover is a plastic part, the rear shell is a sheet metal part, and a heat preservation part and / or a noise reduction part are provided between the wind cover and the rear shell.

[0026] The utility model has the following technical effects:

[0027] The utility model provides a dryer which directly drives a drum to rotate through a motor, omits a belt structure, reduces space occupation, can save energy and reduce noise, has more stable and efficient driving, and longer service life. In addition, a wind hood is arranged between the machine shell and the bottom of the drum, so that a first air duct is directly formed between the wind hood and the outer side wall of the bottom of the drum. Compared with the scheme of directly forming an air duct between the outer side wall of the bottom of the drum and the rear shell of the machine shell, this scheme can prevent the high-temperature drying air formed in the dryer from directly contacting the rear shell of the machine shell during the process of passing into the cavity, and avoid the loss of heat and wind energy due to the heat conduction of the rear shell. Therefore, this scheme can shorten the drying time and reduce energy consumption. Description of the Drawings

[0028] Figure 1 is a structural sectional view of the dryer of the utility model;

[0029] Figure 2 is Figure 1 the enlarged view at A in

[0030] Figure 3 is an exploded view of the assembly structure of the drum, the wind hood and the motor of the utility model;

[0031] Figure 4 is Figure 3 the enlarged view at B in

[0032] Figure 5 is Figure 3 the enlarged view at C in

[0033] Figure 6 is a partial structural sectional view of the dryer of the utility model;

[0034] Figure 7 is a three-dimensional structural schematic diagram of the wind hood of the utility model.

[0035] Description of the Reference Numerals

[0036] 100, dryer;

[0037] 1, machine shell; 11, front shell; 12, rear shell; 13, base;

[0038] 2, drum; 21, cavity; 22, bottom of the drum; 221, air inlet hole; 23, barrel body;

[0039] 3, wind hood; 31, hood shell structure; 311, recessed part; 3111, protruding structure; 312, through hole; 313, second mounting hole; 314, annular groove; 315, first concave part; 3151, opening; 316, second concave part; 32, air inlet structure; 321, air inlet channel;

[0040] 41. First air duct; 411. First air guiding channel; 412. Second air guiding channel; 42. Second air duct; 43. Third air duct;

[0041] 5. Motor; 51. Drive shaft; 511. Contact portion; 5111. Third mounting hole; 512. Shaft body; 513. Second spline structure; 52. Stator; 521. First main body portion; 522. Connection portion; 5221. First mounting hole; 53. Rotor; 531. Axial hole; 532. First spline structure; 533. Second main body portion;

[0042] 6. Bearing;

[0043] 7. Seal;

[0044] 81. Evaporator; 82. Condenser; 83. Fan. Detailed implementation mode

[0045] In order to make the technical solutions and beneficial effects of the present utility model more obvious and understandable, the following will be described in detail 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 belongs.

[0046] In the description of the present utility model, unless otherwise clearly defined, the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "height", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of simplifying the description of the present utility model, rather than indicating that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, that is, it cannot be understood as a limitation to the present utility model.

[0047] In the present utility model, the terms "first" and "second" are only used for the purpose of clear description, and cannot be understood as the relative importance of the indicated features or the number of the indicated technical features. Therefore, the features defined with "first" and "second" can clearly include at least one such feature. In the description of the present utility model, the meaning of "a plurality" is at least two; the meaning of "several" is at least one; unless otherwise clearly defined.

[0048] In the present utility model, unless otherwise clearly defined, terms such as "installation", "connection", "attachment", "fixation", "arrangement", etc. shall be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integrally formed connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can also be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0049] In the present utility model, unless otherwise clearly defined, a first feature being "on", "above", "over", "upon", "under", "beneath", "below", or "underneath" a second feature can be that the first feature is in direct contact with the second feature, or the first feature and the second feature are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "over", or "upon" a second feature can be that the first feature is directly above or obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than the horizontal height of the second feature. A first feature being "under", "beneath", or "underneath" a second feature can be that the first feature is directly below or obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than the horizontal height of the second feature.

[0050] The "front", "rear", "upper", and "lower" mentioned in the present utility model are all based on Figure 1 and Figure 3 the markings in

[0051] Next, according to Figures 1 to 7 the dryer of the present utility model will be described in detail.

[0052] In this embodiment, as Figures 1 to 4 shown, the dryer 100 includes a housing 1, a drum 2, a wind hood 3, and a motor 5. The housing 1 is used to form the support structure and the outer contour structure of the dryer 100. The drum 2 is located inside the housing 1 and is rotatably connected to the housing 1. The drum 2 includes a barrel body 23 and a barrel bottom 22. The barrel body 23 and the barrel bottom 22 together form a cavity 21 for accommodating clothes. The barrel bottom 22 is provided with a plurality of air inlet holes 221. The wind hood 3 is located inside the housing 1 and is connected to the housing 1. The wind hood 3 covers the outer surface of the barrel bottom 22, and a first air duct 41 is formed between them. The first air duct 41 is communicated with the air inlet holes 221. The high-temperature drying air formed by the dryer 100 sequentially passes through the first air duct 41 and the air inlet holes 221 and then enters the cavity 21. The motor 5 is located behind the wind hood 3. The motor 5 includes a drive shaft 51. The drive shaft 51 passes through the wind hood 3 and is coaxially connected to the drum 2. Of course, the drive shaft 51 and the drum 2 can be directly coaxially connected, or the two can be coaxially connected by means of an adapter (such as an adapter block).

[0053] By adopting the above technical solution, the drum 2 is directly driven to rotate by the motor 5, eliminating the belt structure, reducing space occupation, saving energy, reducing noise, and providing more stable and efficient driving with a longer service life. In addition, the air hood 3 is arranged between the machine shell 1 and the bottom 22 of the drum, so that a first air duct 41 is directly formed between the outer surface of the air hood 3 and the bottom 22 of the drum. Compared with the solution where the air duct is directly formed between the outer surface of the bottom 22 of the drum and the rear shell 12 of the machine shell 1, this solution can prevent the high-temperature drying air formed in the dryer 100 from directly contacting the rear shell 12 of the machine shell 1 during the process of entering the cavity 21, thereby avoiding the loss of hot air heat energy due to the heat conduction of the rear shell 12, shortening the drying time, and reducing energy consumption.

[0054] In one embodiment, as Figure 2 , Figure 3 and Figure 6 shown, the motor 5 further includes a cooperating stator 52 and rotor 53. The stator 52 is connected to the rear wall of the air hood 3, the rotor 53 is coaxially connected to the drive shaft 51, and the stator 52 and the rotor 53 cooperate to enable the rotor 53 to drive the drive shaft 51 to rotate and drive the drum 2 to rotate through the drive shaft 51. In this solution, the stator 52 is directly mounted on the rear wall of the air hood 3 without modifying the structure of the machine shell 1, reducing the processing cost.

[0055] Furthermore, as Figure 5 and Figure 6 shown, the rear wall of the air hood 3 is provided with a recess 311, and the recess 311 is provided with a protruding structure 3111. The stator 52 is embedded in the recess 311. In this way, the air hood 3 can protect the stator 52 from being damaged due to collision during the assembly of the dryer 100. In addition, the stator 52 is sleeved on the protruding structure 3111 and the two are in interference fit, facilitating the assembly of the stator 52.

[0056] Furthermore, the stator 52 and the air hood 3 are connected by a first fastener (not shown in the figure) to improve the firmness of their assembly. Specifically, as Figure 5As shown, the stator 52 includes a first main body portion 521 and a connecting portion 522. The first main body portion 521 cooperates with the rotor 53 to enable the rotor 53 to rotate. The first main body portion 521 and the connecting portion 522 can be integrally formed or assembled and connected. The first main body portion 521 surrounds the connecting portion 522. The thickness of the connecting portion 522 is less than the thickness of the first main body portion 521. The connecting portion 522 has an annular structure. The connecting portion 522 is sleeved on the convex structure 3111 and the two are in interference fit. The connecting portion 522 is provided with four first mounting holes 5221, and the air hood 3 is provided with four second mounting holes 313. The first mounting holes 5221 and the second mounting holes 313 are arranged in one-to-one correspondence. The first fastener is a bolt, which passes through the first mounting holes 5221 and the second mounting holes 313 and then cooperates with a nut to fix the stator 52 and the air hood 3. Moreover, configuring the thickness of the connecting portion 522 to be less than the thickness of the first main body portion 521 is beneficial to shortening the length of the first fastener. In addition, in order to facilitate the force balance at the connection between the stator 52 and the air hood 3, the four first mounting holes 5221 are evenly spaced along the circumferential direction of the stator 52. Of course, the number of the first mounting holes 5221 and the second mounting holes 313 is not limited to four, and can also be two, three or even more.

[0057] Further, as Figure 3 and Figure 6 shown, the rotor 53 is embedded in the recessed portion 311. In this way, the air hood 3 can protect the rotor 53 and prevent the rotor 53 from being damaged due to collision during the assembly of the dryer 100.

[0058] In an embodiment, the rotor 53 is splined to the drive shaft 51. In this way, the rotational force formed by the rotor 53 can be transmitted to the drive shaft 51 to cause the drive shaft 51 to rotate synchronously. Specifically, as Figures 3 to 6 shown, the rotor 53 is provided with a shaft hole 531. A first spline structure 532 is provided on the inner wall of the shaft hole 531. The rear end of the shaft body 512 of the drive shaft 51 is provided with a second spline structure 513. The first spline structure 532 and the second spline structure 513 cooperate to enable the drive shaft 51 to rotate together with the rotor 53. The first spline structure 532 and the shaft hole 531 can be integrally formed, or the first spline structure 532 can also be an independent component. The first spline structure 532 and the inner wall of the shaft hole 531 can be assembled by clamping, buckling or connecting with fasteners. In this way, the structural modification of the second main body portion 533 of the rotor 53 can be reduced, and the processing cost can be lowered.

[0059] In an embodiment, as Figure 4 and Figure 6As shown, the front end of the drive shaft 51 extends radially along the drive shaft 51 to form an abutting portion 511. The abutting portion 511 abuts against the outer surface of the bottom 22 of the drum, and the two are connected by a second fastener (not shown in the figure). Specifically, the second fastener is a rivet. The abutting portion 511 is provided with six third mounting holes 5111, and the bottom 22 of the drum 2 is provided with six fourth mounting holes (not shown in the figure). When assembling the drive shaft 51 and the drum 2, the third mounting holes 5111 are aligned with the fourth mounting holes one by one, and then the second fastener is used to cooperate with the corresponding third mounting holes 5111 and fourth mounting holes to achieve riveting. The drive shaft 51 transmits the rotational force to the drum 2 through the second fastener. Preferably, in order to evenly transmit the torque, the six third mounting holes 5111 are evenly spaced circumferentially around the drive shaft 51. Of course, the assembly method of the drive shaft 51 and the drum 2 is not limited to riveting, and can also be bolt fixing or other connection methods. Of course, the number of the third mounting holes 5111 and the fourth mounting holes is not limited to six, and can also be two, three or even more.

[0060] In one embodiment, as Figure 6 and Figure 7 shown, the wind hood 3 is provided with a through hole 312, and the drive shaft 51 is connected to the through hole 312 through a bearing 6. The central axis of the through hole 312 coincides with the central axis of the drive shaft 51. The inner ring of the bearing 6 is in interference fit with the drive shaft 51, and the outer ring of the bearing 6 is in interference fit with the through hole 312. The wind hood 3 supports the drive shaft 51 through the bearing 6.

[0061] In one embodiment, since the drum 2 will rotate relative to the wind hood 3, there needs to be a gap between the drum 2 and the wind hood 3 to avoid friction between the two. However, the existence of this gap will cause the first air duct 41 to communicate with the external space of the wind hood 3. In this solution, in order to prevent the high-temperature and dry air in the first air duct 41 from leaking from the gap between the wind hood 3 and the bottom 22 of the drum, as Figure 1 and Figure 2 shown, a seal 7 is provided between the wind hood 3 and the bottom 22 of the drum. The seal 7 is connected to the front side wall of the wind hood 3. The seal 7 and the wind hood 3 are both fixed. The seal 7 is used to seal the gap between the wind hood 3 and the bottom 22 of the drum to avoid heat energy loss.

[0062] Furthermore, as Figure 6 and Figure 7 shown, the front side surface of the wind hood 3 is provided with an annular groove 314. The seal 7 is annular. As Figure 2 shown, one end of the seal 7 is installed in the annular groove 314, and the other end abuts against the outer surface of the bottom 22 of the drum 2 to achieve sealing. The seal 7 can be a rubber part, or a combination of sponge and felt. The sponge is installed in the annular groove 314, and the felt abuts against the outer surface of the bottom 22 of the drum 2. The seal 7 achieves sealing through deformation.

[0063] In one embodiment, as Figure 1 shown, the casing 1 includes a front casing 11, a rear casing 12 and a base 13. The front casing 11 is provided with a clothing inlet (not shown in the figure). When using the dryer 100, the user puts clothes into the drum 2 from the clothing inlet. The front casing 11 and the rear casing 12 are respectively connected to the base 13 (for example, by screws). The front part of the drum 2 is rotatably connected to the front casing 11, and the rear part of the drum 2 is rotatably connected to the rear casing 12. The drum 2 is supported by the front casing 11 and the rear casing 12. The air hood 3 is connected to the base 13, and the two can be fixed by screws. The air hood 3 is located between the rear casing 12 and the bottom 22 of the drum 2. On the one hand, the rear casing 12 can cover the air hood 3 and the motor 5, improving the aesthetic appearance of the outer contour of the dryer 100. On the other hand, the rear casing 12 wraps the air hood 3, which can reduce the loss of heat in the first air duct 41 and reduce the noise generated when the dryer 100 operates. Of course, the casing 1 also includes side plates and a top plate, and its structure can refer to any existing dryer, which will not be elaborated here.

[0064] As Figure 1 shown, the base 13 includes a second air duct 42. A third air duct 43 is formed between the front wall of the drum 2 and the front casing 11. The second air duct 42, the first air duct 41, the cavity 21, the third air duct 43 and the second air duct 42 are communicated in sequence to form a circulating air flow channel. The dryer 100 includes an evaporator 81, a condenser 82, a compressor (not shown in the figure) and a fan 83. The evaporator 81, the condenser 82, the compressor and the fan 83 are all arranged in the second air duct 42, and the evaporator 81 and the condenser 82 are arranged in sequence along the air flow direction.

[0065] When the dryer 100 is turned on to the drying mode, the motor 5 drives the drum 2 to rotate, and the fan 83 starts, so that the air flow in the second air duct 42 flows towards the first air duct 41. And during this process, the compressor works, so that the condenser 82 heats the air to form high-temperature dry air. The high-temperature dry air flows into the first air duct 41 under the power of the fan 83, and then enters the cavity 21 of the drum 2 through the air inlet hole 221, absorbs the moisture in the clothes to form humid and hot air. The humid and hot air flows through the third air duct 43 and the second air duct 42 in sequence. In the second air duct 42, the humid and hot air is first cooled by the evaporator 81 to form low-temperature dry air, and then heated by the condenser 82 to form high-temperature dry air. The high-temperature dry air then enters the cavity 21 of the drum 2 through the first air duct 41 and the air inlet hole 221 in sequence. Through the circulation of the air flow, the clothes are dried.

[0066] It should be understood that the working principles of the compressor, the evaporator 81, and the condenser 82 can refer to the working principles of the corresponding structures in any existing dryer. Here, the corresponding heat release and heat absorption principles are briefly described. Specifically, the compressor compresses the low-temperature and low-pressure gas into a high-temperature and high-pressure gas. The high-temperature and high-pressure gas becomes a high-temperature and medium-pressure gas-liquid coexistence substance (working medium) through a throttling device. The working medium flows between the compressor, the evaporator 81, and the condenser 82. The working medium first flows through the condenser 82, where it changes from a gas to a liquid and releases heat to the surroundings, so that the condenser 82 heats the low-temperature dry air into high-temperature dry air. Then, the working medium flows through the evaporator 81, where it changes from a liquid to a gas and absorbs heat from the surroundings, so that the evaporator 81 cools the humid air into low-temperature dry air.

[0067] Further, the air hood 3 is connected to the rear shell 12. The rear shell 12 of the dryer 100 is a sheet metal part. Connecting the air hood 3 to the rear shell 12 can reinforce the air hood 3 and improve the structural strength of the whole machine.

[0068] Further, the connection method between the air hood 3 and the rear shell 12 includes fastening connection, snap connection, or buckling connection, which is convenient for assembly.

[0069] In one embodiment, the air hood 3 is a plastic part. Compared with the sheet metal part, the plastic part has better heat preservation performance and reduces the heat energy loss of the first air duct 41. There is a heat preservation part and / or a noise reduction part between the air hood 3 and the rear shell 12. The heat preservation part and / or the noise reduction part can be arranged at Figure 1 the position indicated by the arrow a in the figure. Among them, the heat preservation part can further reduce the heat energy loss of the first air duct 41, thereby shortening the drying time. The noise reduction part can reduce the noise generated during the operation of the dryer 100 and improve the user experience.

[0070] In one embodiment, as Figure 1 、 Figure 2 、 Figure 5 、 Figure 6 and Figure 7 shown, the air hood 3 includes a hood shell structure 31 and an air inlet structure 32. The concave part 311, the through hole 312, the second mounting hole 313, and the annular groove 314 are all arranged on the hood shell structure 31. On the side of the hood shell structure 31 facing the drum 2, there are also a first concave part 315 and a second concave part 316. The first concave part 315 surrounds the second concave part 316, and the depth of the first concave part 315 is greater than the depth of the second concave part 316. The hood shell structure 31 covers the outer surface of the bottom 22 of the drum 2. The first concave part 315 and the outer surface of the bottom 22 of the drum 2 form a first air guiding channel 411, and the second concave part 316 and the outer surface of the bottom 22 of the drum 2 form a second air guiding channel 412. The first air guiding channel 411 and the second air guiding channel 412 are connected to each other and jointly form the first air duct 41. As Figure 1 and Figure 7As shown, the air inlet structure 32 is provided with an air inlet passage 321. An opening 3151 is provided on the side of the first concave portion 315 facing the air inlet passage 321. The second air duct 42 is communicated with the first air guiding passage 411 through the air inlet passage 321.

[0071] During the drying process, the high-temperature drying air in the second air duct 42 enters the first air guiding passage 411 through the air inlet passage 321. Part of the air flow in the first air guiding passage 411 first flows along the first air guiding passage 411, then flows to the second air guiding passage 412 and then enters the drum 2. There is also part of the air flow directly enters the second air guiding passage 412 through the first air guiding passage 411, and then enters the drum 2. In this solution, by improving the structure of the wind hood 3, it is beneficial for the air flow in the first air duct 41 to flow evenly into the drum 2, improving the drying effect.

[0072] In one embodiment, as Figure 1 shown, the fan 83 is a cross-flow fan. Compared with an axial-flow fan, the cross-flow fan has a higher pressure rise and less noise, can improve the air flow velocity and air volume, and improve the drying efficiency. Further, the central axis of the fan 83 is located in the horizontal plane and is perpendicular to the central axis of the drum 2. The vertical upward projection of the fan 83 at least partially falls into the air inlet passage 321. In this way, the air flow blown by the fan 83 can better enter the air inlet passage 321, which is beneficial to the improvement of the air flow velocity.

[0073] It should be understood that the above embodiments are all exemplary and do not cover all possible implementation manners included in the claims. Without departing from the scope of the present disclosure, various deformations and changes can also be made on the basis of the above embodiments. Similarly, the various technical features of the above embodiments can also be arbitrarily combined to form additional embodiments of the present invention that may not be clearly described. Therefore, the above embodiments only represent several implementation manners of the present invention and do not limit the protection scope of the present invention patent.

Claims

1. A dryer, characterized in that, The dryer (100) includes: a cabinet (1); a drum (2) rotatably connected to the cabinet (1) and including a cavity (21) for accommodating clothes, and a plurality of air inlet holes (221) are provided on the bottom (22) of the drum (2); an air hood (3) connected inside the cabinet (1), the air hood (3) covering the outer surface of the bottom (22) of the drum and forming a first air duct (41) therebetween, and the first air duct (41) communicating with the plurality of air inlet holes (221); a motor (5) located behind the air hood (3) and including a drive shaft (51), the drive shaft (51) passing through the air hood (3) and being coaxially connected to the drum (2).

2. The clothes dryer according to claim 1, characterized in that, The motor (5) further includes a stator (52) and a rotor (53) that cooperate with each other, the stator (52) being connected to the rear wall of the air hood (3), and the rotor (53) being coaxially connected to the drive shaft (51).

3. The dryer according to claim 2, wherein A recessed portion (311) is provided on the rear wall of the air hood (3), and a protruding structure (3111) is provided in the recessed portion (311); The stator (52) is embedded in the recessed portion (311), and the stator (52) is sleeved on the protruding structure (3111) and the two are in interference fit.

4. The dryer according to claim 3, characterized in that, The stator (52) and the air hood (3) are connected by a first fastener.

5. The dryer according to claim 3, characterized in that, The rotor (53) is embedded in the recessed portion (311).

6. The dryer according to claim 2, characterized in that, The rotor (53) and the drive shaft (51) are spline-connected.

7. The clothes dryer according to any one of claims 1-6, characterized in that, A contact portion (511) is formed by the front end of the drive shaft (51) extending radially along the drive shaft (51), the contact portion (511) contacting the outer surface of the bottom (22) of the drum and the two being connected by a second fastener.

8. The dryer according to any one of claims 1 to 6, characterized in that, The air hood (3) is provided with a through hole (312), and the drive shaft (51) is connected to the through hole (312) through a bearing (6).

9. The dryer according to any one of claims 1-6, characterized in that, A seal (7) is provided between the air hood (3) and the bottom (22) of the drum, and the seal (7) is connected to the front side wall of the air hood (3) for sealing the gap between the air hood (3) and the bottom (22) of the drum.

10. The dryer according to any one of claims 1-6, characterized in that, The cabinet (1) includes a front shell (11), a rear shell (12) and a base (13), and the base (13) includes a second air duct (42); The front shell (11) and the rear shell (12) are respectively connected to the base (13), the front part of the drum (2) is rotatably connected to the front shell (11) and the rear part thereof is rotatably connected to the rear shell (12), the air hood (3) is connected to the base (13), and the first air duct (41) communicates with the second air duct (42).

11. The dryer according to claim 10, characterized in that, The air hood (3) is connected to the rear shell (12).

12. The dryer according to claim 11, characterized in that, The connection manner between the air hood (3) and the rear shell (12) includes fastener connection, snap connection or buckle connection.

13. The dryer according to claim 10, characterized in that, The air hood (3) is a plastic part, the rear shell (12) is a sheet metal part, and a heat insulation part and / or a noise reduction part is provided between the air hood (3) and the rear shell (12).

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