Clothes dryer

Abstract

The utility model provides a clothes dryer which comprises a roller, a base and a fan, the roller comprises a containing cavity and a pick-and-place opening, and the pick-and-place opening is communicated with the containing cavity; the base is located below the roller, the roller can rotate relative to the base under the action of external force, and a first air channel communicating with the containing cavity is formed in the base; the fan comprises a wind wheel and a fan motor, and at least the wind wheel is located in the first air duct; under the action of the fan motor, the wind wheel rotates to form airflow which circularly flows between the first air duct and the accommodating cavity; a first air guide structure protruding towards the wind wheel is arranged on the inner wall of the first air channel and can guide airflow to flow to the wind wheel. According to the clothes dryer, the air volume can be increased, and the drying efficiency is improved.

Description

Technical Field

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

[0002] With the development of science and technology and the improvement of living standards, the traditional method of drying clothes by hanging them out to dry can no longer meet the needs due to slow drying speed and poor drying effect. Dryers can generate dry hot air flow and use the hot air flow to take away moisture from clothes to achieve the purpose of drying clothes. This drying method is fast and effective, and dryers have become more and more popular.

[0003] However, current clothes dryers have low air volume and poor drying efficiency due to unreasonable air duct curves, small air duct widths, and tortuous air ducts, which reduces the user experience.

[0004] Therefore, there is an urgent need to provide a clothes dryer to solve at least one of the above technical problems. Summary of the Invention

[0005] In view of the above problems, an embodiment of the present application provides a dryer that can increase the drying air volume, improve the fan efficiency, and improve the dehumidification efficiency of the evaporator for hot and humid air.

[0006] In order to achieve the above objectives, the embodiments of the present application provide the following technical solutions:

[0007] An embodiment of the present application provides a clothes dryer, comprising:

[0008] The drum comprises a receiving cavity and a taking-in and putting-out opening, wherein the taking-in and putting-out opening is communicated with the receiving cavity;

[0009] A base is located below the drum, and under the action of an external force, the drum can rotate relative to the base, and a first air duct connected to the accommodating cavity is provided in the base;

[0010] a fan, comprising a fan wheel and a fan motor, wherein at least the fan wheel is located in the first air duct; under the action of the fan motor, the fan wheel rotates to form an airflow circulating between the first air duct and the accommodating cavity;

[0011] The inner wall of the first air duct is provided with a first air guide structure protruding toward the wind wheel, and the first air guide structure can guide the air flow toward the wind wheel.

[0012] The first air guide structure can reduce the gap between the inner wall of the first air duct and the wind wheel, and guide the airflow to the wind wheel so that it flows to the first air duct outlet under the driving action of the wind wheel. The first air guide structure can increase the air output of the fan, thereby improving the drying efficiency.

[0013] In some embodiments, the base has a base inner cavity, and the base further includes a waterproof cover located in the base inner cavity, an upper space is defined between the waterproof cover and the top of the base inner cavity, the upper space is formed as the first air duct, and a lower space is defined between the waterproof cover and the bottom of the base inner cavity;

[0014] The first air guide structure is located on the top of the waterproof cover and / or the inner cavity of the base;

[0015] The clothes dryer further comprises a heat exchange assembly, and in the vertical direction, at least a portion of the heat exchange assembly and the wind wheel are located in the upper space;

[0016] Under the rotation of the wind wheel, the airflow from the accommodating cavity is dehumidified and heated by the heat exchange component, and can be circulated into the accommodating cavity through the first air duct; the lower partition space is formed into a drainage channel, and the liquid generated by the dehumidification of the heat exchange component can pass through the waterproof cover and enter the drainage channel.

[0017] In some embodiments, the first air guide structure includes:

[0018] a first protruding structure protruding downward from the top of the first air duct; and / or,

[0019] A second protruding structure protrudes upward from the waterproof cover.

[0020] In some embodiments, the waterproof cover comprises:

[0021] A horizontal installation area, used to carry part of the heat exchange components;

[0022] A first air guide structure, one end of which is connected to the horizontal installation area and protrudes upward;

[0023] The second wind guide structure is connected to the other end of the second wind guide structure. The second wind guide structure is formed into an arc structure that is upwardly tilted around the outer side of the wind wheel at a relative position to the wind wheel to guide the airflow at the bottom of the wind wheel to flow out toward the outlet of the first air duct.

[0024] In some embodiments, the heat exchange assembly includes: a compressor, a heat exchange pipeline, and an evaporator and a condenser arranged in sequence along the flow direction of the airflow;

[0025] The evaporator and the condenser are located in the upper compartment and mounted on the waterproof cover;

[0026] The heat exchange pipeline has a heat exchange medium therein, and the heat exchange pipeline is connected to the compressor, the evaporator and the condenser respectively, so that the heat exchange medium circulates among the compressor, the evaporator and the condenser;

[0027] Under the cooperative action of the compressor and the heat exchange medium, the evaporator can absorb heat from the first air duct to dehumidify the air flow flowing through the first air duct, and the condenser can release heat into the first air duct to heat the air flow flowing through the first air duct. The liquid generated by the dehumidification of the evaporator can pass through the waterproof cover and enter the drainage channel.

[0028] In some embodiments, the waterproof cover has at least one downwardly recessed water guide groove at a position opposite to the evaporator, and the inner wall of the water guide groove has a liquid hole connected to the drainage channel.

[0029] In some embodiments, the base includes an upper cover plate and a lower cover plate, the upper cover plate and the lower cover plate together form the base cavity, and the waterproof cover is mounted on the lower cover plate;

[0030] The lower cover plate and / or the waterproof cover is provided with a supporting structure, and the supporting structure is used to support the second air guide structure to maintain the arc-shaped structure of the second air guide structure.

[0031] In some embodiments, the left side wall, the top wall, and at least a portion of the bottom wall of the first air duct are linear, so that at least a portion of the airflow path in the first air duct is linear.

[0032] The inlet of the first air duct is located below the taking and placing port, the outlet of the first air duct is located below the rear wall of the drum, the outlet of the first air duct faces the rear side of the drum, and when the base is projected along the length direction of the first air duct, the outlet of the first air duct and the inlet of the first air duct at least partially overlap.

[0033] In some embodiments, the fan is a cross-flow fan.

[0034] The clothes dryer further comprises:

[0035] a casing, wherein the casing has an inner cavity for accommodating the drum;

[0036] a support member, mounted on the housing, wherein the support member is located behind the rear wall of the drum;

[0037] a rotating shaft, one end of which is connected to the rear wall of the drum;

[0038] The direct drive motor includes a stator and a rotor rotating relative to the stator, wherein the stator is connected to the support member and the rotor is connected to the other end of the rotating shaft; under the rotation of the rotor, the rotating shaft drives the drum to rotate.

[0039] In some embodiments, the clothes dryer further comprises:

[0040] a casing, wherein the casing has an inner cavity for accommodating the drum;

[0041] a support member, mounted on the housing, wherein the support member is located behind the rear wall of the drum;

[0042] a rotating shaft, one end of which is connected to the rear wall of the drum;

[0043] The direct drive motor includes a stator and a rotor rotating relative to the stator, wherein the stator is connected to the support member and the rotor is connected to the other end of the rotating shaft; under the rotation of the rotor, the rotating shaft drives the drum to rotate.

[0044] In some embodiments, the rear wall of the drum has an air inlet;

[0045] The clothes dryer further includes a second air duct located between the support member and the rear wall of the drum, and two ends of the second air duct are respectively connected to the air inlet and the outlet of the first air duct.

[0046] In some embodiments, the diameter of the stator is within the diameter range of the rotor, and the roller, the rotating shaft, the stator, and the rotor are coaxially distributed.

[0047] In addition to the technical problems solved by the embodiments of the present application described above, the technical features that constitute the technical solutions, and the beneficial effects brought about by the technical features of these technical solutions, other technical problems that can be solved by the cleaning modules, cleaning equipment, and cleaning systems provided by the embodiments of the present application, other technical features included in the technical solutions, and the beneficial effects brought about by these technical features will be further described in detail in the specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0049] Figure 1 A schematic diagram of the internal structure of a clothes dryer provided in some embodiments of the present application;

[0050] Figure 2 A cross-sectional view of a clothes dryer base provided for some embodiments of the present application;

[0051] Figure 3 A schematic top view of the internal structure of a clothes dryer base provided in some embodiments of the present application;

[0052] Figure 4A schematic structural diagram of a waterproof cover in a clothes dryer provided in some embodiments of the present application;

[0053] Figure 5 for Figure 4 Enlarged view of point A in the middle;

[0054] Figure 6 Some embodiments of the present application provide a cross-sectional view of a clothes dryer.

[0055] Description of reference numerals:

[0056] 110, housing; 103, drainage channel; 104, first air guide structure;

[0057] 120, drum; 121, accommodating chamber; 122, access opening; 123, side wall of drum; 124, rear wall of drum; 1241, air inlet;

[0058] 130. Base; 131. First air duct; 132. Inlet of first air duct; 133. Outlet of first air duct; 134. Upper cover; 1341. First protruding structure; 135. Lower cover; 1356. Support structure;

[0059] 140. Heat exchange component; 141. Evaporator; 142. Condenser; 143. Compressor;

[0060] 150. Direct drive motor; 151. Rotating shaft;

[0061] 160. Fan; 161. Fan motor; 162. Wind wheel;

[0062] 170, support member;

[0063] 180. Waterproof cover; 181. Second protruding structure; 182. Water guide groove; 1821. Liquid hole; 183. Horizontal installation area; 184. Second air guide structure. DETAILED DESCRIPTION

[0064] To make the technical solutions and beneficial effects of the embodiments of this application more clearly understood, the following detailed description is given by way of enumerating 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.

[0065] In the description of the embodiments of the present application, the terms "center", "up", "down", "front", "back", "left", "right", "horizontal", "vertical", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings and are not to be understood as limitations on the present application.

[0066] In the embodiments of this application, the terms "first" and "second" are used only for the purpose of clarity of description and should not be understood as the relative importance of the indicated features or the number of the indicated technical features. Therefore, a feature defined as "first" or "second" can explicitly include at least one of the features. In the description of the embodiments of this application, "plurality" means at least two, for example, two, three, etc.

[0067] In the embodiments of this application, unless otherwise explicitly defined, the terms "mounted," "connected," and "fixed" should be interpreted broadly. For example, "connected" can mean fixed, removable, or integrated; it can mean direct, indirect, or internally connected between two components, or the interaction between two components. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0068] In the embodiments of the present application, unless otherwise explicitly stated, a first feature being "on" a second feature may mean that the first feature and the second feature are in direct contact, or that the first feature and the second feature are in indirect contact through an intermediary. Furthermore, a first feature being "on" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is at a higher level than the second feature.

[0069] The following combination Figures 1 to 6 The clothes dryer according to the embodiment of the present application is described in detail.

[0070] like Figure 1 and Figure 6 As shown, the clothes dryer provided in the embodiment of the present application includes: a drum 120, a base 130 and a fan 160, the drum 120 includes a accommodating chamber 121 and a take-out opening 122, and the take-out opening 122 is connected to the accommodating chamber 121; the base 130 is located below the drum 120, and under the action of an external force, the drum 120 can rotate relative to the base 130, and a first air duct 131 connected to the accommodating chamber 121 is provided in the base 130; the fan 160 includes a fan wheel 162 and a fan motor 161, at least the fan wheel 162 is located in the first air duct 131; under the action of the fan motor 161, the fan wheel 162 rotates to form an airflow circulating between the first air duct 131 and the accommodating chamber 121; Figure 2 As shown, the inner wall of the first air duct 131 is provided with a first air guiding structure 104 protruding toward the wind wheel 162 , and the first air guiding structure 104 can guide the airflow to flow toward the wind wheel 162 .

[0071] For the convenience of description, the embodiment of the present application takes the location of the access opening 122 as the "front", and the location of the rear wall of the drum 120 as the "rear". The "left" and "right" are defined based on the user of the dryer facing the access opening 122. The specific directions can be referred to as follows: Figure 1 shown.

[0072] The first air guide structure 104 can reduce the gap between the inner wall of the first air duct 131 and the wind wheel 162, and guide the airflow to the wind wheel 162 so that the airflow flows to the outlet of the first air duct 131 under the drive of the wind wheel 162. The first air guide structure 104 can increase the air output of the fan 160, thereby improving the drying efficiency.

[0073] The clothes to be dried can be placed in or taken out of the accommodating chamber 121 through the loading and unloading opening 122. The rotation of the drum 120 driven by an external force (generally driven by a motor) can drive the clothes in the accommodating chamber 121 to move, so that the clothes are fully exposed to the air flow, which is conducive to improving the drying efficiency, making the drying more uniform and achieving better drying effect.

[0074] In some embodiments, fan 160 is a cross-flow fan. Compared to axial flow fans in the prior art, the cross-flow fan employed in the embodiments of the present application has a multi-bladed, elongated cylindrical impeller 162, making it more compact and quieter. Furthermore, the airflow path within impeller 162 is more complex than that of an axial flow fan, allowing for the formation of vortices and a greater pressure rise than with an axial flow fan. Therefore, the use of a cross-flow fan can increase airflow velocity and volume, achieving the desired drying effect in a shorter time, improving dryer efficiency, and enhancing the user experience with less noise.

[0075] Due to the use of a cross-flow fan, the first air duct 131 of the embodiment of the present application can be larger in size to provide a larger air volume and improve drying efficiency. The dimensions include but are not limited to: the cross-sectional area perpendicular to the length direction of the first air duct, the air duct width, and the air duct length.

[0076] In some embodiments, the base 130 has a base inner cavity, and the base 130 also includes a waterproof cover 180 located in the base inner cavity, and an upper partition space is provided between the waterproof cover 180 and the top of the base inner cavity, and the upper partition space is formed as a first air duct 131, and a lower partition space is provided between the waterproof cover 180 and the bottom of the base inner cavity; the first air guide structure 104 is located on at least one of the waterproof cover 180 and the top of the base inner cavity; the dryer also includes a heat exchange component 140, and in the vertical direction, at least part of the heat exchange component 140 and the wind wheel 162 are located in the upper partition space; under the rotation of the wind wheel 162, the air flow from the accommodating cavity 121 is dehumidified and heated by the heat exchange component 140, and can be circulated to the accommodating cavity 121 through the first air duct 131; the lower partition space is formed as a drainage channel 103, and the liquid generated by the dehumidification of the heat exchange component 140 can pass through the waterproof cover 180 and enter the drainage channel 103.

[0077] That is, the waterproof cover 180 divides the inner space of the base into an upper space and a lower space, wherein the upper space serves as the first air duct 131 and the lower space serves as a drainage channel. The waterproof cover 180 can reduce the accumulation of condensed water generated by dehumidification above the waterproof cover 180.

[0078] In some embodiments, the cross flow blower may not be provided with a protective housing. In other embodiments, a protective housing may also be provided outside the cross flow blower.

[0079] like Figure 1 As shown, the drum 120 includes at least a cylindrical side wall 123 and a rear wall 124 connected to the rear side of the side wall 123 , a take-in and put-out port 122 is formed on the front side of the side wall 123 , and a plurality of air inlets 1241 communicating with the accommodating cavity 121 are distributed on the rear wall 124 .

[0080] Typically, the clothes dryer also includes a front cover located in front of the access opening 122. When the front cover is opened, the access opening 122 is exposed for accessing and placing clothes. When the front cover is closed, the front cover completely covers the access opening 122, thereby reducing the amount of dirt from the external environment from entering the accommodating chamber 121 through the access opening 122 and preventing clothes from being thrown out of the access opening 122 during operation of the clothes dryer.

[0081] like Figure 6 As shown by the middle arrow, along the direction of air flow in the first air duct 131, the fan 160 is located between the outlet 133 of the first air duct 131 and the heat exchange component 140, and the air flow flows out of the base 130 through the inlet 132 of the first air duct 131, the heat exchange component 140, the fan 160 and the outlet 133 of the first air duct 131 in sequence.

[0082] The drying process of the clothes dryer generally includes: placing the clothes to be dried into the accommodating chamber 121 through the access opening 122. Then, the fan 160 is started to drive the airflow. The humid and cold air in the accommodating chamber 121 enters the first air duct 131 of the base 130 through the access opening 122. After entering the first air duct 131, the airflow passes through the heat exchange component 140, where it is dehumidified and heated by the heat exchange component 140 to form a dry hot airflow. The dry hot airflow flows along the first air duct 131 and flows into the accommodating chamber 121 through the outlet of the first air duct 131 and the air inlet 1241 in turn. The dry hot airflow flowing into the accommodating chamber 121 removes moisture from the clothes and forms humid and cold air again, and the cycle repeats. In order to improve the drying efficiency of the clothes, while the airflow circulates between the accommodating chamber 121 and the first air duct 131, an external force drives the drum 120 to rotate. After the clothes are dried, they are removed from the accommodating chamber 121 through the access opening 122.

[0083] In some embodiments, as Figure 2 As shown, the first air guide structure 104 includes: a first protruding structure 1341 protruding downward from the top of the first air duct 131 , or a second protruding structure 181 protruding upward from the waterproof cover 180 .

[0084] In the embodiments shown in the drawings of this application, Figure 2 As shown, the first air guide structure 104 includes: a first protruding structure 1341 protruding downward from the top of the first air duct 131 , and a second protruding structure 181 protruding upward from the waterproof cover 180 .

[0085] A first protruding structure 1341 at the top of first air duct 131 (also the top of the base cavity) compresses the air, directing the airflow above impeller 162 toward impeller 162. A second protruding structure 181 at waterproof cover 180 directs the airflow below impeller 162 toward impeller 162. The presence of first air guide structures 104 at the top of the base cavity and waterproof cover 180 further enhances the airflow guidance effect, thereby further improving drying efficiency.

[0086] In some embodiments, as Figure 4 As shown, the waterproof cover 180 includes: a horizontal installation area 183, a first wind guide structure 104 (in Figure 4 Specifically referring to the second protruding structure 181) and the second wind-guiding structure 184, wherein the horizontal mounting area 183 is used to support part of the heat exchange component 140; one end of the first wind-guiding structure 104 is connected to the horizontal mounting area 183 and protrudes upward; the second wind-guiding structure 184 is connected to the other end of the first wind-guiding structure 104, and the second wind-guiding structure 184 is formed at a relative position to the wind wheel 162 into an arc-shaped structure that is upwardly tilted around the outer side of the wind wheel 162 to guide the airflow at the bottom of the wind wheel 162 to flow out toward the outlet direction of the first air duct 131.

[0087] The arc-shaped structure of the second air-guiding structure 184 fits the upward curve of the wind wheel 162, and the center of the circle where the arc-shaped structure is located coincides with the center of the wind wheel 162. The arc-shaped structure of the waterproof cover 180 can further guide the air at the bottom of the first air duct 131 to flow upward, ensuring that the airflow out of the wind wheel 162 flows out to the set outlet of the first air duct 131.

[0088] In some embodiments, as Figure 2 and Figure 3 As shown, the heat exchange assembly 140 includes: a compressor 143, a heat exchange pipeline, and an evaporator 141 and a condenser 142 arranged in sequence along the air flow direction; the evaporator 141 and the condenser 142 are located in the interval space on the waterproof cover 180 of the first air duct 131 and are installed on the waterproof cover 180; there is a heat exchange medium in the heat exchange pipeline, and the heat exchange pipeline is connected to the compressor 143, the evaporator 141 and the condenser 142 respectively, so that the heat exchange medium circulates among the compressor 143, the evaporator 141 and the condenser 142; under the coordinated action of the compressor 143 and the heat exchange medium, the evaporator 141 can absorb heat from the first air duct 131 to dehumidify the air flow flowing through the first air duct 131, and the condenser 142 can release heat to the first air duct 131 to heat the air flow flowing through the first air duct 131, and the liquid generated by the dehumidification of the evaporator 141 can pass through the waterproof cover 180 and enter the drainage channel 103.

[0089] The waterproof cover 180 is used to divide the inner cavity of the base into an upper partition space and a lower partition space in the vertical direction, so that the space in the first air duct 131 can be fully utilized, ensuring that the first air duct 131 has a larger space while taking into account the drainage function.

[0090] The heat exchange medium can flow between the compressor 143, the evaporator 141, and the condenser 142, so that the heat exchange medium can absorb or release heat. Specifically, the compressor 143 compresses the low-temperature, low-pressure gas into a high-temperature, high-pressure gas, and then passes through the throttling device to become a high-temperature, medium-pressure gas-liquid coexistence. Subsequently, the heat exchange medium flowing through the condenser 142 changes from gas to liquid and releases heat to the surrounding environment. Then, the working medium entering the evaporator 141 changes from liquid to gas and absorbs heat from the surrounding environment, and finally flows back to the compressor 143 to form a cycle. In other words, the heat exchange medium can absorb heat at the evaporator 141. When the air in the air duct flows through the evaporator 141, the water vapor in the air flow entering the first air duct 131 will release heat to produce condensed water, thereby drying the air. The evaporator 141 can process the air flow into low-temperature, dry air. The heat exchange medium releases heat at the condenser 142. When the airflow after drying passes through the condenser 142, the heat released at the condenser 142 can heat the airflow, thereby forming a dry and high-temperature airflow, which is used to dry clothes.

[0091] The evaporator 141 and the condenser 142 are both installed in Figure 4 The waterproof cover 180 may be provided with a structure in the horizontal installation area 183 that has a limiting effect on at least one of the condenser 142 and the evaporator 141. These structures may be raised structures on the periphery of the condenser 142 or the evaporator 141 to ensure the stability of the installation of the evaporator 141 and the condenser 142.

[0092] In some embodiments, as Figure 4 and Figure 5 As shown, at a position of the horizontal installation area 183 opposite to the evaporator 141 , there is at least one downwardly recessed water guide groove 182 , and an inner wall of the water guide groove 182 has a liquid hole 1821 communicating with the drainage channel 103 .

[0093] The recessed water channel 182 will not become clogged due to the placement of the evaporator 141. Condensed water from the evaporator 141 can flow downward along the outer surface of the condenser 142 into the water channel 182. The bottom wall of the water channel 182 can be sloped, with the liquid hole 1821 typically located at the lowest position to better guide the condensed water into the drainage channel 103. The water in the drainage channel 103 can be collected in a water storage box or directly discharged into the sewer through a pipe.

[0094] In some embodiments, as Figure 2 As shown, the base 130 includes an upper cover plate 134 and a lower cover plate 135, which together form an inner cavity of the base, and the waterproof cover 180 is installed on the lower cover plate 135; at least one of the lower cover plate 135 and the waterproof cover 180 is provided with a support structure 1356, and the support structure 1356 is adjacent to the first air duct outlet 133 for supporting the second air guide structure 184 to maintain the arc structure of the second air guide structure 184.

[0095] At least a portion of the upper cover plate 134 is formed as the top of the inner cavity of the base, and at least a portion of the lower cover plate 135 is formed as the bottom of the inner cavity of the base.

[0096] If the dryer is Figure 1 In the floor-mounted configuration shown, the top of the lower cover 135 is used to form at least the first air duct 131, and the bottom of the lower cover 135 can contact a support surface to support the dryer. The support surface includes but is not limited to the ground, furniture surface, or appliance surface.

[0097] In some embodiments, the lower cover plate 135 may further include a structure that has a limiting effect on the evaporator 141 and the waterproof cover 180 .

[0098] In some embodiments, combined Figure 2 and Figure 3As shown, the left side wall, top wall, and at least a portion of the bottom wall of the first air duct 131 are linear, so that at least a portion of the airflow path within the first air duct 131 is linear. Based on the above description, the bottom wall of the first air duct 131 is formed by the waterproof cover 180. Since the waterproof cover 180 has an arc-shaped structure, the horizontal installation area 183 of the waterproof cover 180 forms the linear bottom wall of the first air duct 131.

[0099] Continue to refer Figure 2 and Figure 3 As shown, in the embodiment illustrated in the drawings of this application, the curvature of the right side wall of the first air duct 131 varies significantly. Compared to the right side wall, the curvature of the left side wall, top wall, and part of the bottom wall of the first air duct 131 varies less. Therefore, the left side wall, top wall, and part of the bottom wall of the first air duct 131 are considered to be linear. If at least one of the left side wall, top wall, and part of the bottom wall of the first air duct 131 has a slight curvature, the degree of curvature will have a minimal effect on the airflow path, and the flow path of most of the airflow in the front-to-back direction will remain linear. In this case, the left side wall, top wall, and at least part of the bottom wall of the first air duct 131 can also be understood as being linear as a whole.

[0100] The first air duct 131 of this shape in the embodiment of the present application can reduce the resistance during the flow of air. Compared with the zigzag air duct, the straight first air duct 131 can provide a larger air volume and a faster wind speed, which is conducive to improving the drying efficiency.

[0101] Without limitation, the length direction of the first air duct 131 is substantially parallel to the axis of the drum 120 .

[0102] In some embodiments, as Figure 2 As shown, the inlet 132 of the first air duct 131 is located below the access opening 122, and the outlet 133 of the first air duct 131 is located below the rear wall of the drum 120. The outlet 133 of the first air duct 131 faces the rear side of the drum 120. When the base 130 is projected along the length of the first air duct 131, the outlet 133 of the first air duct 131 at least partially overlaps with the inlet 132 of the first air duct 131. In other words, the outlet 133 and inlet 132 of the first air duct 131 are substantially aligned. This structure can further reduce changes in the airflow direction, thereby reducing airflow resistance.

[0103] In some embodiments, the dryer further includes: a casing 110, a support member 170, a rotating shaft 151 and a direct drive motor 150, the casing 110 having an inner cavity for accommodating the drum 120; the support member 170 is installed on the casing 110, and the support member 170 is located on the rear side of the rear wall of the drum 120; one end of the rotating shaft 151 is connected to the rear wall of the drum 120; the direct drive motor 150 includes a stator and a rotor rotating relative to the stator, the stator is connected to the support member 170, and the rotor is connected to the other end of the rotating shaft 151; under the rotation of the rotor, the rotating shaft 151 drives the drum 120 to rotate.

[0104] The housing 110 is used to form at least the exterior appearance of the clothes dryer. The support member 170 is also located within the interior of the housing 110 and is mounted thereto. The support member 170 serves as a mounting support for the direct-drive motor 150 and the drum 120. It is understood that a support structure 1356 may also be provided on the front side of the drum 120 to enhance the stability of the drum 120 and ensure reliable and stable rotation.

[0105] In the prior art, the motor driving the drum 120 is mounted on the base 130. However, in the embodiment of the present application, the direct-drive motor 150 is mounted on the support 170, eliminating the need for mounting on the base 130. This saves space on the base 130, and this space savings allows for an increase in the size of the first air duct 131. Furthermore, the direct-drive motor 150 eliminates the need for a transmission mechanism such as a belt to transmit external driving force to the drum 120, resulting in a more compact structure, reduced power loss, and easier control of the rotation of the drum 120.

[0106] The support member 170 may be a sheet metal member, but is not limited thereto.

[0107] In some embodiments, the clothes dryer further includes a second air duct located between the support member 170 and the rear wall of the drum 120 , with both ends of the second air duct respectively connected to the air inlet 1241 of the rear wall of the drum 120 and the outlet of the first air duct 131 .

[0108] The second air duct is located at the rear of the drum 120 to more smoothly guide the airflow flowing out of the first air duct 131 to the accommodating cavity 121 in the drum 120 .

[0109] In some embodiments, the diameter of the stator is within the diameter range of the rotor, and the roller 120, the rotating shaft 151, the stator, and the rotor are coaxially distributed. This can improve the coaxiality of the direct drive motor 150 and the roller 120, and improve the stability and reliability of the rolling rotation.

[0110] Among them, other structures and working principles of the dryer can adopt the solutions of the existing technology and will not be described in detail here.

[0111] The various embodiments or implementation methods in this specification are described in a progressive manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts between the various embodiments can be referenced to each other.

[0112] Throughout this specification, references to "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" mean that a specific feature, structure, material, or characteristic described in conjunction with an embodiment or example is included in at least one embodiment or example of the present application. In this specification, illustrative references to the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0113] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A clothes dryer, characterized in that: The clothes dryer comprises: The drum comprises a receiving cavity and a taking-in and putting-out opening, wherein the taking-in and putting-out opening is communicated with the receiving cavity; A base is located below the drum, and under the action of an external force, the drum can rotate relative to the base, and a first air duct connected to the accommodating cavity is provided in the base; a fan, comprising a fan wheel and a fan motor, wherein at least the fan wheel is located in the first air duct; under the action of the fan motor, the fan wheel rotates to form an airflow circulating between the first air duct and the accommodating cavity; The inner wall of the first air duct is provided with a first air guide structure protruding toward the wind wheel, and the first air guide structure can guide the air flow toward the wind wheel.

2. The clothes dryer according to claim 1, characterized in that The base has an inner cavity, and the base further includes a waterproof cover located in the inner cavity of the base, an upper space is defined between the waterproof cover and the top of the inner cavity of the base, the upper space is formed as the first air duct, and a lower space is defined between the waterproof cover and the bottom of the inner cavity of the base; The first air guide structure is located on the top of the waterproof cover and / or the inner cavity of the base; The clothes dryer further comprises a heat exchange assembly, and in the vertical direction, at least a portion of the heat exchange assembly and the wind wheel are located in the upper space; Under the rotation of the wind wheel, the airflow from the accommodating cavity is dehumidified and heated by the heat exchange component, and can be circulated into the accommodating cavity through the first air duct; the lower partition space is formed into a drainage channel, and the liquid generated by the dehumidification of the heat exchange component can pass through the waterproof cover and enter the drainage channel.

3. The clothes dryer according to claim 2, characterized in that The first air guide structure includes: a first protruding structure protruding downward from the top of the first air duct; and / or, A second protruding structure protrudes upward from the waterproof cover.

4. The clothes dryer according to claim 2, wherein: The waterproof cover comprises: A horizontal installation area, used to carry part of the heat exchange components; A first air guide structure, one end of which is connected to the horizontal installation area and protrudes upward; The second wind guide structure is connected to the other end of the second wind guide structure. The second wind guide structure is formed into an arc structure that is upwardly tilted around the outer side of the wind wheel at a relative position to the wind wheel to guide the airflow at the bottom of the wind wheel to flow out toward the outlet of the first air duct.

5. The clothes dryer according to claim 2, characterized in that The heat exchange assembly includes: a compressor, a heat exchange pipeline, and an evaporator and a condenser arranged in sequence along the flow direction of the airflow; The evaporator and the condenser are located in the upper compartment and mounted on the waterproof cover; The heat exchange pipeline has a heat exchange medium therein, and the heat exchange pipeline is connected to the compressor, the evaporator and the condenser respectively, so that the heat exchange medium circulates among the compressor, the evaporator and the condenser; Under the cooperative action of the compressor and the heat exchange medium, the evaporator can absorb heat from the first air duct to dehumidify the air flow flowing through the first air duct, and the condenser can release heat into the first air duct to heat the air flow flowing through the first air duct. The liquid generated by the dehumidification of the evaporator can pass through the waterproof cover and enter the drainage channel.

6. The clothes dryer according to claim 5, characterized in that The waterproof cover is provided with at least one downwardly recessed water guide groove at a position opposite to the evaporator, and the inner wall of the water guide groove is provided with a liquid hole communicated with the drainage channel.

7. The clothes dryer according to claim 4, characterized in that The base includes an upper cover plate and a lower cover plate, the upper cover plate and the lower cover plate together form the base cavity, and the waterproof cover is installed on the lower cover plate; The lower cover plate and / or the waterproof cover is provided with a supporting structure, and the supporting structure is used to support the second air guide structure to maintain the arc-shaped structure of the second air guide structure.

8. The clothes dryer according to claim 1, wherein: The left side wall, the top wall and at least a portion of the bottom wall of the first air duct are linear, so that at least a portion of the airflow path in the first air duct is linear.

9. The clothes dryer according to claim 1 or 8, characterized in that: The inlet of the first air duct is located below the taking and placing port, the outlet of the first air duct is located below the rear wall of the drum, the outlet of the first air duct faces the rear side of the drum, and when the base is projected along the length direction of the first air duct, the outlet of the first air duct and the inlet of the first air duct at least partially overlap.

10. The clothes dryer according to any one of claims 1 to 8, characterized in that: The fan is a cross-flow fan.

11. The clothes dryer according to claim 1, wherein The clothes dryer further comprises: a casing, wherein the casing has an inner cavity for accommodating the drum; a support member, mounted on the housing, wherein the support member is located behind the rear wall of the drum; a rotating shaft, one end of which is connected to the rear wall of the drum; The direct drive motor includes a stator and a rotor rotating relative to the stator, wherein the stator is connected to the support member and the rotor is connected to the other end of the rotating shaft; under the rotation of the rotor, the rotating shaft drives the drum to rotate.

12. The clothes dryer according to claim 11, characterized in that The rear wall of the drum is provided with an air inlet; The clothes dryer further includes a second air duct located between the support member and the rear wall of the drum, and two ends of the second air duct are respectively connected to the air inlet and the outlet of the first air duct.

13. The clothes dryer according to claim 12, characterized in that The diameter of the stator is within the diameter range of the rotor, and the roller, the rotating shaft, the stator and the rotor are coaxially distributed.

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