Clothes dryer

Abstract

The utility model relates to a clothes dryer which comprises a roller assembly and a clothes dryer, the roller assembly comprises a first driving part and an inner barrel with a clothes containing space, and the inner barrel rotates under the driving force of the first driving part; the rear cover is provided with a first air guide channel, and the first air guide channel is communicated with the inner cylinder space; the machine shell comprises a front plate, a base and a rear plate, the front plate is provided with a second air guide channel, one end of the second air guide channel is communicated with the inner cylinder space, and the base is provided with a containing space; the second driving part is connected to the base and located in the containing space, and under the driving action of the second driving part, air sequentially flows through the first air guide channel, the inner cylinder space, the second air guide channel and the containing space to form circulating air flow; the rear cover is located between the rear plate and the inner cylinder. The clothes dryer can greatly reduce heat loss of hot air in the air duct, has a heat preservation effect on the rear cover, can reduce noise generated during operation of the clothes dryer, and further improves drying efficiency and reduces power consumption.

Description

Technical Field

[0001] The present application relates to the technical field of clothing care, and in particular to a clothes dryer. Background Art

[0002] A dryer is a commonly used device for clothing care. A dryer usually refers to a tumble dryer, which heats the clothes in the drum to evaporate the moisture in the clothes, and then discharges the moisture through condensation or exhaust.

[0003] Currently, the circulating hot air of the dryer loses a lot of heat when circulating in the air duct, which affects the drying efficiency and increases power consumption. Utility Model Content

[0004] In view of this, an embodiment of the present application provides a clothes dryer to solve at least one problem existing in the background technology.

[0005] In a first aspect, an embodiment of the present application provides a clothes dryer, comprising:

[0006] The drum assembly includes a first driving member and an inner drum having a space for accommodating clothes, wherein the inner drum rotates under the driving force of the first driving member;

[0007] a rear cover, disposed adjacent to the inner cylinder, the rear cover being provided with a first air guide passage, the first air guide passage being in communication with the space of the inner cylinder;

[0008] The housing includes a front plate, a base, and a rear plate, the front plate and the rear plate being disposed opposite each other and both connected to the base, the front plate being provided with a second air guide channel, one end of which is connected to the inner cylinder space, and the base being provided with an accommodating space, one end of which is connected to the first air guide channel and the other end of which is connected to the second air guide channel;

[0009] a second driving member, wherein, under the driving action of the second driving member, air flows through the first air guide channel, the inner cylinder space, the second air guide channel and the accommodating space in sequence, and forms a circulating airflow;

[0010] Wherein, the rear cover is located between the rear plate and the inner cylinder.

[0011] In combination with the first aspect of the present application, in an optional embodiment, the rear cover is connected to the rear plate, and the rear plate is a sheet metal part.

[0012] In combination with the first aspect of the present application, in an optional embodiment, the rear plate is covered on the first driving member and the rear cover.

[0013] In combination with the first aspect of the present application, in an optional embodiment, a thermal insulation material is connected between the rear plate and the rear cover.

[0014] In combination with the first aspect of the present application, in an optional embodiment, the first air guide channel is composed of an air intake channel and an air guide groove that are interconnected and provided on the rear cover, one end of the air intake channel is connected to the air guide groove, and the other end has a second air inlet, and the air intake channel extends along a first direction, which is perpendicular to the axis of the inner cylinder.

[0015] In combination with the first aspect of the present application, in an optional embodiment, the thermal insulation material is connected between the rear cover and the rear plate at a position corresponding to the position of the air intake passage.

[0016] In combination with the first aspect of the present application, in an optional embodiment, the air guide groove is an annular structure, and the air flow enters the air inlet channel from the accommodating space through the second air inlet, and is discharged from the air guide groove and flows into the inner cylinder space.

[0017] In conjunction with the first aspect of the present application, in an optional embodiment, the clothes dryer further includes:

[0018] A first elastic sealing member is connected to the rear cover and is located in a gap between the rear cover and the inner cylinder. The inner cylinder abuts against a surface of the first sealing member during rotation.

[0019] In conjunction with the first aspect of the present application, in an optional embodiment, the rear cover is provided with a second mounting groove of an annular structure, the second mounting groove matches the first sealing member, and the first sealing member is installed in the second mounting groove;

[0020] A protrusion with an annular structure is provided on one side of the inner cylinder close to the rear cover. The protrusion is opposite to the first sealing member and abuts against the surface of the first sealing member and can deform the first sealing member to seal between the rear cover and the inner cylinder.

[0021] In conjunction with the first aspect of the present application, in an optional embodiment, a first mounting groove matching the first driving member is formed in a recessed manner on a side of the rear cover away from the inner cylinder;

[0022] The rear cover is further provided with a first through hole, the first through hole being located in the first mounting groove, and the output shaft of the first driving member passes through the first through hole and is connected to the inner cylinder.

[0023] In combination with the first aspect of the present application, in an optional embodiment, the second driving member is located in the accommodating space and is located near the first air guide channel.

[0024] The dryer provided in the embodiment of the present application is provided with a first air guide channel in the rear cover. The first air guide channel, the inner drum space, the second air guide channel and the accommodating space form an air duct for air circulation. The rear cover is located between the rear plate and the inner drum, which can greatly reduce the heat loss of the hot air in the air duct, play a role in heat preservation for the rear cover, and at the same time can also reduce the noise generated when the dryer is in operation, further improve the drying efficiency and reduce power consumption.

[0025] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0027] Figure 1 A three-dimensional diagram of the overall structure of the clothes dryer provided in an embodiment of the present application;

[0028] Figure 2 for Figure 1 Schematic diagram of the cross section at the middle BB;

[0029] Figure 3 for Figure 1 A schematic diagram of the cross section at the middle BB;

[0030] Figure 4 A schematic diagram of the three-dimensional structure of a second driving member and a heat exchange assembly mounted on the base of a clothes dryer provided in an embodiment of the present application;

[0031] Figure 5 for Figure 3 Enlarged view of point A in the middle;

[0032] Figure 6 A schematic diagram of the three-dimensional structure of the rear cover of the clothes dryer provided in an embodiment of the present application;

[0033] Figure 7 for Figure 6 A schematic diagram of the cross section at CC in the middle;

[0034] Figure 8 A schematic diagram of the exploded structure of the rear plate, rear cover and first driving member of the clothes dryer provided in an embodiment of the present application;

[0035] Figure 9 A partial structural cross-sectional view of a clothes dryer provided in an embodiment of the present application;

[0036] Figure 10 for Figure 9 Enlarged view of point B in the middle;

[0037] Figure 11 A schematic structural diagram of a rear cover and a base in a clothes dryer provided in an embodiment of the present application;

[0038] Figure 12 for Figure 11 Schematic diagram of the cross section at DD in the middle;

[0039] Figure 13 for Figure 12 Enlarged view of point E in the middle.

[0040] Reference numerals:

[0041] 100. Clothes dryer;

[0042] 10. Casing; 110. Front panel; 11a. Second air guide channel; 111. Access opening; 120. Rear panel;

[0043] 130, base; 131, first air inlet; 132, accommodating space; 133, end covers of both devices; 1331, first air outlet; 1332, second connecting member; 1333, second alignment member; 1334, rib; 1335, limiting column; 134, bottom plates of both devices; 1341, curved plate; 140, side plate;

[0044] 20. Drum assembly; 210. First driving member; 211. Output shaft; 220. Inner cylinder; 221. End plate; 2211. Air inlet hole; 222. Protrusion;

[0045] 30, rear cover; 30a, first air guide channel; 310, air inlet channel; 311, second air inlet; 320, air guide groove; 330, first mounting groove; 340, first through hole; 350, second mounting groove; 360, first connecting member; 361, plug-in slot; 370, first alignment member; 371, position-limiting through hole;

[0046] 40. Second driving member;

[0047] 50. Heat exchange assembly; 510. Evaporator; 520. Condenser; 530. Compressor;

[0048] 60. First sealing member; 610. Foam; 620. Felt; 70. Thermal insulation material; 80. Second sealing member. DETAILED DESCRIPTION

[0049] To make the technical solutions and beneficial effects of the present invention more clearly understood, the following detailed description is given by way of specific embodiments. The accompanying drawings are not necessarily drawn to scale, and local features may be enlarged or reduced to more clearly illustrate the details of the local features. 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.

[0050] In the description of the present invention, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "height", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and so on, indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of simplifying the description of the present invention, and do not indicate that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and should not be understood as a limitation to the present invention.

[0051] In this utility model, the terms "first" and "second" are used solely for descriptive purposes and should not be construed as indicating the relative importance of the features indicated or the number of technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two or three, and "several" means at least one, such as one, two, or three, unless otherwise expressly specified.

[0052] In this utility model, unless otherwise expressly defined, the terms "install," "connect," "connect," "fix," "dispose," etc. should be understood broadly. For example, "connect" can mean fixed, removable, or integrated; it can mean mechanical or electrical; it can mean direct or indirect connection through an intermediary; it can also mean internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0053] In the present invention, unless otherwise clearly defined, when a first feature is “on,” “above,” “above,” “above,” “below,” “below,” or “below” a second feature, the first feature and the second feature may be in direct contact, or the first feature and the second feature may be in indirect contact via an intermediate medium. Moreover, when a first feature is “on,” “above,” or “above” a second feature, it may mean that the first feature is directly above or obliquely above the second feature, or simply means that the horizontal height of the first feature is higher than the horizontal height of the second feature. When a first feature is “below,” “below,” or “below” a second feature, it may mean that the first feature is directly below or obliquely below the second feature, or simply means that the horizontal height of the first feature is lower than the horizontal height of the second feature.

[0054] like Figures 1 to 3 As shown, the clothes dryer 100 includes a housing 10 and a drum assembly 20. The drum assembly 20 includes a hollow cylindrical inner drum 220 and a first driving member 210. The inner drum 220 is rotatably mounted on the housing 10 and connected to the first driving member 210. The inner drum 220 is used to accommodate clothes to be cared for. One end of the inner drum 220 has an inlet, and the other end of the drum end plate 221 is provided with multiple air inlet holes 2211. The inner drum 220 rotates under the drive of the first driving member 210, causing the clothes inside to rotate accordingly.

[0055] The housing 10 includes a front panel 110, which is provided with an access opening 111. The access opening 111 corresponds to the inlet and is in spatial communication with the inner drum 220. The front panel 110 is also provided with a door panel for opening and closing the access opening 111. The front panel 110 is also provided with a control panel (not shown). The control panel includes an input unit and a display unit. The input unit is used to receive user control commands and request the dryer 100 to execute the control commands. The display unit is used to display the usage status of the dryer 100 and information input by the input unit.

[0056] The casing 10 also includes a base 130, and a accommodating space 132 is formed inside the base 130. The base 130 located on the same side as the front panel 110 is provided with a first air inlet 131. The first air inlet 131 is connected to the accommodating space 132, and the accommodating space 132 is connected to the interior of the inner drum 220. The external air of the dryer 100 enters the internal space of the dryer 100 from the first air inlet 131.

[0057] One end of the inner drum 220 close to the rear plate 120 is a free end. The dryer 100 also includes a rear cover 30, which is adjacent to the free end of the inner drum 220 and there is a gap between the rear cover 30 and the inner drum 220. A first air guide channel 30a is provided inside the rear cover 30, and one end of the first air guide channel 30a is connected to the accommodating space 132, and the other end is connected to the internal space of the inner drum 220.

[0058] The front panel 110 is provided with a second air guide channel 11a, one end of the second air guide channel 11a is connected to the internal space of the inner cylinder 220, and the other end is connected to the accommodating space 132. The first air inlet 131, the accommodating space 132, the first air guide channel 30a, the space of the inner cylinder 220 and the second air guide channel 11a form an air duct that can circulate air. Figure 2 The hollow arrows in FIG. 1 show the circulation path of the air flow in the air duct.

[0059] Dryer 100 also includes a second drive member 40 and a heat exchange assembly 50, both mounted within the housing 132 of base 130. Second drive member 40 is a fan, which generates a circulating airflow within the air duct. The fan is preferably a cross-flow fan, which increases air velocity and air volume, thereby improving the overall drying efficiency of dryer 100.

[0060] Please refer to Figures 2 to 4 The heat exchange assembly 50 includes an evaporator 510 and a condenser 520. The evaporator 510 and the condenser 520 are installed in the accommodating space 132 of the base 130 along the direction of airflow. In other words, the air in the air duct flows through the evaporator 510 and the condenser 520 in sequence, and the evaporator 510 and the condenser 520 respectively dry and heat the air to produce dry, high-temperature air. The dryer 100 also includes a compressor 530 (not shown). The compressor 530 is connected to the evaporator 510 and the condenser 520. A working medium can flow between the compressor 530, the evaporator 510, and the condenser 520, allowing the working medium to absorb or release heat. The working medium is the medium that realizes the mutual conversion of thermal energy and mechanical energy.

[0061] Specifically, the compressor 530 compresses the low-temperature, low-pressure gas into a high-temperature, high-pressure gas and then passes through a throttling device (not shown in the figure) into a high-temperature, medium-pressure gas-liquid coexistence. Subsequently, the working fluid flowing through the condenser 520 changes from gas to liquid and releases heat to the surrounding environment, and then enters the evaporator 510. After entering the evaporator 510, the working fluid changes from liquid to gas and absorbs heat from the surrounding environment, and finally flows back to the compressor 530 to form a cycle.

[0062] It can be understood that the working medium absorbs heat at the evaporator 510. When the air in the air duct flows through the evaporator 510, the water vapor in the air releases heat to produce condensed water, thereby drying the air. After passing through the evaporator 510, the hot and humid air is converted into low-temperature, dry air. The working medium releases heat at the condenser 520. When the dried air flows through the condenser 520, the heat released by the condenser 520 heats the air, forming dry, high-temperature air. The air then enters the inner drum 220 through the first air guide channel 30a of the rear cover 30 to remove moisture from the clothes.

[0063] In the above-mentioned dryer 100, the inner walls of the air duct formed by the accommodating space 132 provided on the base 130, the first air guide channel 30a provided on the rear cover 30, the space in the inner drum 220 and the second air guide channel 11a provided on the front plate 110 are all made of plastic. Compared with the dryer in the prior art in which at least part of the air duct is composed of sheet metal parts, the air duct with sheet metal parts loses heat faster. The inner walls of the air duct of the dryer in the embodiment of the present application are all made of plastic, which can greatly reduce the loss of heat energy, shorten the drying time of the dryer 100, improve the condensation efficiency of the dryer 100, and also improve the drying efficiency and reduce power consumption.

[0064] It should be noted that the dryer 100 requires a sheet metal rear panel 120 to ensure its overall structural strength. In the prior art, the rear panel 120 is used as part of the air duct, resulting in heat loss within the duct. In this embodiment, a first air guide channel 30a is provided within the rear cover 30. The entire air duct of the dryer 100 is constructed of plastic, significantly reducing heat loss within the duct and ensuring drying efficiency.

[0065] In an alternative embodiment, please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 5 and Figure 6 The first air guide channel 30a is composed of an air intake channel 310 and an air guide groove 320 provided on the rear cover 30. One end of the air intake channel 310 is connected to the air guide groove 320, and the other end has a second air inlet 311. The air intake channel 310 is similar to a square structure. The air intake channel 310 is along the first direction, that is, Figure 2 The coordinate axis shown in FIG extends in the Z-axis direction, the first direction is perpendicular to the axis direction of the inner cylinder 220, and the air flow in the accommodating space 132 of the base 130 is along the axis direction of the inner cylinder 220 under the action of the cross-flow fan. Figure 2 The air flows in the X-axis direction of the coordinates shown in FIG. 3 , and the air inlet passage 310 and the cross-flow fan flow in the second direction. Figure 1 The width in the Y-axis direction of the coordinates shown in the figure matches the width in the Y-axis direction of the coordinates shown in the figure, so that the cross-flow fan guides more air volume from the second air inlet 311 into the air inlet channel 310, thereby improving the drying efficiency and reducing energy consumption; in addition, in the first direction, i.e. Figure 2 The distance of the air inlet channel 310 in the Z-axis direction of the coordinate shown in the figure is shorter, which reduces wind energy loss, increases the flow speed and flow rate of the air flow in the air duct, and thus increases the air flow speed and flow rate entering the space of the inner cylinder 220.

[0066] Figure 6 The figure shows the three-dimensional structure of the rear cover 30, combined with Figure 2 The width of the air inlet channel 310 in the first direction is Figure 2The width of the second air inlet 311 is gradually narrowed along the Z-axis of the coordinate system shown in FIG. , that is, the width at the second air inlet 311 is greater than the width at the connection between the air inlet channel 310 and the guide groove. As the air inlet channel 310 gradually narrows, the airflow velocity within the air inlet channel 310 gradually increases, thereby increasing the airflow velocity entering the space of the inner drum 220 and further improving the drying efficiency.

[0067] Furthermore, if Figure 2 and Figure 3 As shown, the base 130 includes two end covers 133 and two bottom plates 134. The evaporator 510 and the condenser 520 are both mounted on the bottom plates 134 and are located in the accommodating space 132. The accommodating space 132 has a first air outlet 1331 at one end close to the rear cover 30. The first air outlet 1331 is located on the two end covers 133. The first air outlet 1331 matches the second air inlet 311, and the airflow in the accommodating space 132 enters the air inlet channel 310 along the first direction through the first air outlet 1331 and the second air inlet 311. It can be understood that the airflow guided by the cross-flow fan is along the first direction, which is the vertical direction of the dryer 100 when in use, that is, Figure 2 The airflow flows in the Z-axis direction of the coordinates shown in FIG. 2 . The airflow enters the rear cover 30 and continues to flow vertically within the air inlet passage 310 before being discharged through the air guide groove 320 and entering the inner drum 220. It can also be understood that the airflow within the accommodating space 132 enters the air inlet passage 310 without any obstruction, thereby increasing the flow velocity and flow rate of the airflow within the air duct, further increasing the flow velocity and flow rate of the airflow entering the inner drum 220, and improving the drying efficiency of the clothes in the inner drum 220.

[0068] Furthermore, in the first direction, an arc-shaped plate 1341 is provided on the bottom plates 134 of the two devices from the position corresponding to the cross-flow fan to the first air outlet 1331. The airflow flowing along the axial direction of the inner cylinder 220 in the accommodating space 132 flows to the surface of the arc-shaped plate 1341 under the action of the cross-flow fan, and flows along the first direction under the guidance of the arc-shaped plate 1341 and enters the air inlet channel 310 through the first air outlet 1331 and the second air inlet 311. The airflow from the accommodating space 132 is consistent with the flow direction in the air inlet channel 310, and the first air outlet 1331 matches the second air inlet 311. There is no obstruction to the airflow during the flow process, thereby ensuring the flow speed and flow rate of the airflow from the accommodating space 132 into the first air guide channel 30a of the rear cover 30, and further improving the speed and flow rate of the airflow entering the space of the inner cylinder 220.

[0069] In an optional embodiment, a cross-flow fan is located in the accommodating space 132 near the second air inlet 311. On the one hand, the cross-flow fan is located near the second air inlet 311, that is, near the space of the inner drum 220, to increase the speed of the airflow entering the space of the inner drum 220. On the other hand, the cross-flow fan can change the direction of the airflow in the accommodating space 132, so that the airflow near the first air outlet 1331 in the accommodating space 132 flows in the first direction, and the airflow entering the second air inlet 311 continues to flow in the first direction, thereby ensuring the airflow speed of the airflow from the accommodating space 132 into the air inlet channel 310, further ensuring the drying efficiency.

[0070] In an alternative embodiment, if Figure 2 、 Figure 3 、 Figure 5 and Figure 6 As shown, the air guide groove 320 is an annular structure. After entering the air inlet channel 310 through the first air outlet 1331 and the second air inlet 311, the airflow is discharged along the air guide groove 320 and then flows into the inner drum 220. After the airflow is discharged from the annular air guide groove 320, it flows through the surface area of ​​the rear cover 30 surrounded by the air guide groove 320. In other words, the airflow discharged from the air guide groove 320 not only enters the inner drum 220 from the position corresponding to the air guide groove 320, but also enters the inner drum 220 from the position corresponding to the area of ​​the rear cover 30 surrounded by the air guide groove 320. This improves the uniformity of the airflow entering the inner drum 220, further improving the uniformity of the drying of the clothes in the inner drum 220.

[0071] In an alternative embodiment, please refer to Figure 3 and Figure 7 The first driving member 210 is a motor. A first mounting slot 330 is recessed on the side of the rear cover 30 away from the inner cylinder 220. This slot is used to mount the motor. The rear cover 30 also has a first through-hole 340, which is located within the first mounting slot 330. The motor's output shaft 211 is inserted into the first through-hole 340 and connected to the inner cylinder 220. Driven by the motor, the output shaft 211 rotates, driving the inner cylinder 220 to rotate synchronously.

[0072] The motor is embedded in the first mounting groove 330 of the rear cover 30, which can improve the overall structural compactness of the dryer 100; in addition, the use of a direct drive motor can improve the energy efficiency of the motor and thus reduce power consumption.

[0073] refer to Figure 1 、 Figure 2 and Figure 8The housing 10 also includes a rear plate 120, which is a sheet metal component. The rear cover 30 is located between the rear plate 120 and the inner cylinder 220. The rear plate 120 covers the rear cover 30 and the first drive member 210, which not only reduces heat loss but also reduces noise generated during machine operation. The rear plate 120 is connected and fixed to the bottom plate 134 of the two devices. Of course, the rear plate 120 is also connected and fixed to the side plate 140 of the housing 10. The fixing method is not specifically limited in this embodiment of the application, for example, screws. Figure 8 The figure shows a schematic exploded view of the structure of the rear plate 120 and the rear cover 30 in which the first driving member 210 is embedded.

[0074] It can be understood that the rear cover 30 is located inside the dryer 100, and the rear plate 120 is used to contact the outside of the dryer 100. The rear plate 120 can ensure the structural strength of the dryer 100. The first air guide channel 30a in the rear cover 30 made of plastic material as part of the air duct can greatly reduce the heat loss in the air duct. The embodiment of the present application can not only ensure the structural strength of the dryer, but also reduce the heat loss during the drying process of the dryer, improve the drying efficiency of the dryer 100, and reduce power consumption at the same time.

[0075] In an alternative embodiment, if Figure 2 As shown, a thermal insulation material 70 is connected between the rear plate 120 and the rear cover 30. The thermal insulation material 70 not only reduces the temperature loss of the entire machine, but also reduces the noise generated during the operation of the dryer 100, thereby improving the user experience. The specific material of the thermal insulation material 70 is not limited in this embodiment of the application, for example, thermal insulation sponge.

[0076] Specifically, the heat-insulating material 70 is connected to a position corresponding to the air intake passage 310 of the rear cover 30 to insulate the hot air flowing through the air intake passage 310 .

[0077] During the operation of the clothes dryer 100 , the inner drum 220 is in a rotating state, and there is a gap between the free end of the inner drum 220 and the rear cover 30 , which easily causes heat loss.

[0078] Based on this, Figure 7 、 Figure 9 and Figure 10 As shown, a first seal 60 is connected to the side of the rear cover 30 close to the inner cylinder 220. The inner cylinder 220 abuts against the surface of the first seal 60 during rotation and the first seal 60 is deformed to ensure the sealing effect between the rear cover 30 and the inner cylinder 220. The first seal 60 is connected to the rear cover to simplify the sealing process, thereby saving costs.

[0079] Preferably, the first sealing member 60 comprises foam 610 and felt 620. The felt 620 is connected to the foam 610, which is in turn connected to the rear cover 30. The inner cylinder 220 abuts the surface of the felt 620, causing both the foam 610 and the felt 620 to deform. The porous structure of the foam 610 provides excellent cushioning and shock absorption, as well as excellent thermal insulation. The porous structure of the foam 610 also absorbs sound waves, reducing noise transmission. The felt 620 has a certain degree of elasticity, and both the felt 620 and the foam 610 have thermal insulation properties. This not only improves the seal between the inner cylinder 220 and the rear cover 30, but also significantly reduces heat loss within the air duct, providing thermal insulation. Of course, the first sealing member 60 can also be made of other materials, such as sponge or rubber strips.

[0080] Furthermore, the rear cover 30 is provided with a second mounting groove 350 of an annular structure, and the first sealing member 60 is installed in the second mounting groove 350. The inner cylinder 220 is provided with an annular protrusion 222 at a position corresponding to the second mounting groove 350. The protrusion 222 abuts against the surface of the first sealing member 60 and deforms it to ensure a sealing effect.

[0081] Furthermore, the shape of the protrusion 222 gradually narrows from the inner drum 220 to the seal, so as to reduce the contact area between the protrusion 222 and the first seal 60, thereby reducing the friction between the protrusion 222 and the first seal 60 when the inner drum 220 rotates, further improving the drying efficiency of the dryer 100.

[0082] Furthermore, the end of the protrusion 222 contacting the seal is an arc-shaped structure, so as to ensure smooth rotation of the inner drum 220 relative to the first seal 60, further reducing the power consumption of the dryer 100.

[0083] In an alternative embodiment, if Figure 5 and Figure 7 As shown, the rear cover 30 is sealed and connected to the first air outlet 1331 of the two end covers 133 .

[0084] Specifically, a first connecting member 360 is provided at the bottom of the rear cover 30, and a second connecting member 1332 matching the first connecting member 360 is provided on the base 130, and a second sealing member 80 is connected between the first connecting member 360 and the second connecting member 1332, so that the rear cover 30 is sealed and connected to the base 130.

[0085] As an example, the bottom of the rear cover 30, near the two end caps 133, is provided with a plug-in slot 361, which serves as the first connector 360. The surfaces of the two end caps 133 are provided with ribs 1334, which match the plug-in slot 361 and serve as the second connector 1332. The ribs 1334 are inserted into the plug-in slot 361. Also as an example, the first connector 360 is the rib 1334, and the second connector 1332 is the plug-in slot 361. Of course, the first connector 360 and the second connector 1332 may also have other specific connection structures, which are not specifically limited in this embodiment of the present application.

[0086] A second sealing member 80 is connected between the rib 1334 and the insertion groove 361. This second sealing member 80 ensures a seal between the rear cover 30 and the two end caps 133, significantly reducing air leakage within the air duct. The second sealing member 80 may be a rubber sealing strip, but other sealing materials are also possible. The shape of the second sealing member 80 can be determined based on the specific shapes of the insertion groove 361 and rib 1334. Furthermore, the number of insertion grooves 361 and ribs 1334 can be adjusted based on actual needs and is not specifically limited in this embodiment.

[0087] In order to ensure the maximum air flow in the rear cover 30, the plug-in groove 361 located at the bottom of the rear cover 30 is also located at the bottom of the side wall of the air intake channel 310. It can be understood that the rear cover 30 has a thinner side wall of the air intake channel 310 so that the air intake channel 310 has a larger space. Inserting the rib 1334 into the plug-in groove 361 can greatly increase the flow path of the airflow in the plug-in groove 361, while also ensuring the sealing of the accommodating space 132 and the first air guide channel 30a.

[0088] Furthermore, the rear cover 30 and the two device end covers 133 can be fixed by means of, but not limited to, screws or hooks, so as to improve the connection firmness between the rear cover 30 and the two device end covers 133.

[0089] In an alternative embodiment, if Figures 11 to 13 As shown, the rear cover 30 is provided with at least two first alignment members 370, and the two device end covers 133 are provided with second alignment members 1333 matching the first alignment members 370, so as to improve the assembly convenience of the rear cover 30 and the two device end covers 133, thereby improving the assembly efficiency.

[0090] Specifically, the first alignment member 370 is a limiting through-hole 371 provided in the rear cover 30, and the second alignment member 1333 is a limiting post 1335 provided in the two device end covers 133. The limiting post 1335 is inserted into the limiting through-hole 371 to achieve alignment between the rear cover 30 and the two device end covers 133 during assembly. Preferably, the rear cover 30 is provided with two first alignment members 370, and the two device end covers 133 are provided with two second alignment members 1333. The two first alignment members 370 are respectively located at different positions on the rear cover 30, and the two second alignment members 1333 are respectively located at different positions on the two device end covers 133.

[0091] The first aligning member 370 and the second aligning member 1333 are not limited to the limiting through hole 371 and the limiting post 1335, but may also be other aligning structures. For example, the first aligning member 370 is the limiting post 1335, and the second aligning member 1333 is the limiting through hole 371. Also for example, the first aligning member 370 is a limiting groove, and the second aligning member 1333 is a limiting protrusion 222. The shape of the limiting protrusion 222 is determined according to specific circumstances and is not specifically limited in this embodiment of the application.

[0092] In an alternative embodiment, reference Figure 1 and Figure 8 The rear cover 30 is not only connected to the two end covers 133 of the base 130, but also connected to the rear plate 120. The rear plate 120 is a sheet metal structure. The connection of the rear cover 30 to the rear plate 120 can improve the overall structural strength of the dryer 100.

[0093] The rear panel 120 is connected and fixed to the base 130 and the side panels 140, and the front panel 110 is connected and fixed to the side panels 140 and the bottom panel to form the housing 10 of the clothes dryer 100. The rear panel 120 integrally covers the rear cover 30, which not only reduces noise and maintains heat, but also simplifies the overall structure of the clothes dryer 100, improving its appearance.

[0094] It should be understood that the above embodiments are exemplary and are not intended to encompass all possible implementations of the claims. Various modifications and variations may be made to the above embodiments without departing from the scope of the present disclosure. Similarly, the various technical features of the above embodiments may be arbitrarily combined to form additional embodiments of the present application that may not be explicitly described. Therefore, the above embodiments merely illustrate several implementations of the present application and do not limit the scope of protection of the patent application.

Claims

1. A clothes dryer, characterized in that: include: A drum assembly (20) comprises a first driving member (210) and an inner drum (220) having a space for accommodating clothes, wherein the inner drum (220) rotates under the driving force of the first driving member (210); A rear cover (30) is provided adjacent to the inner cylinder (220), the rear cover (30) being provided with a first air guide passage (30a), the first air guide passage (30a) being in spatial communication with the inner cylinder (220); A housing (10) comprising a front panel (110), a base (130) and a rear panel (120), wherein the front panel (110) and the rear panel (120) are arranged opposite to each other and are both connected to the base (130), the front panel (110) is provided with a second air guide channel (11a), one end of the second air guide channel (11a) is connected to the space of the inner cylinder (220), and the base (130) is provided with an accommodating space (132), one end of the accommodating space (132) is connected to the first air guide channel (30a), and the other end is connected to the second air guide channel (11a); a second driving member (40), wherein, under the driving action of the second driving member (40), air flows sequentially through the first air guide channel (30a), the space of the inner cylinder (220), the second air guide channel (11a), and the accommodating space (132), thereby forming a circulating airflow; The rear cover (30) is located between the rear plate (120) and the inner cylinder (220), and the rear plate (120) is a sheet metal part.

2. The clothes dryer according to claim 1, characterized in that The rear cover (30) is connected to the rear plate (120).

3. The clothes dryer according to claim 2, characterized in that The rear plate (120) covers the first driving member (210) and the rear cover (30).

4. The clothes dryer according to claim 1, wherein: A heat-insulating material (70) is connected between the rear plate (120) and the rear cover (30).

5. The clothes dryer according to claim 4, characterized in that The first air guide channel (30a) is composed of an air intake channel (310) and an air guide groove (320) that are connected to each other and provided on the rear cover (30); one end of the air intake channel (310) is connected to the air guide groove (320), and the other end has a second air intake port (311); the air intake channel (310) extends along a first direction, which is perpendicular to the axial direction of the inner cylinder (220).

6. The clothes dryer according to claim 5, characterized in that The heat-insulating material (70) is connected between the rear cover (30) and the rear plate (120) at a position corresponding to the air intake passage (310).

7. The clothes dryer according to claim 5, characterized in that The air guide groove (320) is an annular structure, and air flows from the accommodating space (132) through the second air inlet (311) into the air inlet channel (310), and is discharged from the air guide groove (320) and flows into the space of the inner cylinder (220).

8. The clothes dryer according to claim 1, wherein: Also includes: A first elastic sealing member (60) is connected to the rear cover (30) and is located in a gap between the rear cover (30) and the inner cylinder (220); the inner cylinder (220) abuts against a surface of the first sealing member (60) during rotation.

9. The clothes dryer according to claim 8, characterized in that The rear cover (30) is provided with a second mounting groove (350) of an annular structure, the second mounting groove (350) matches the first sealing member (60), and the first sealing member (60) is installed in the second mounting groove (350); A protrusion (222) with an annular structure is provided on one side of the inner cylinder (220) close to the rear cover (30), the protrusion (222) is opposite to the first sealing member (60), and the protrusion (222) abuts against the surface of the first sealing member (60) and can deform the first sealing member (60) to seal between the rear cover (30) and the inner cylinder (220).

10. The clothes dryer according to claim 1, wherein A first mounting groove (330) matching the first driving member (210) is formed in a recessed manner on one side of the rear cover (30) away from the inner cylinder (220); The rear cover (30) is further provided with a first through hole (340), the first through hole (340) being located in the first mounting groove (330), and the output shaft of the first driving member (210) passing through the first through hole (340) and connected to the inner cylinder (220).

11. The clothes dryer according to claim 1, wherein The second driving member (40) is located in the accommodating space (132) and is located near the first air guide channel (30a).

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