Air supply device and dryer

Abstract

This application relates to an air supply device and a clothes dryer. The air supply device includes a base, a housing, and an air outlet mechanism. The housing and the base together form a drying chamber for placing clothes. The air outlet mechanism is located on the base and is positioned opposite the top of the drying chamber. The air outlet mechanism has multiple air outlets and is configured to deliver multiple upward hot airflows into the drying chamber in multiple directions through these outlets. These upward airflows can be blocked by the top of the drying chamber to form downward airflows. The upward hot airflows delivered by the different air outlets of the air supply device can ultimately form different circulation loops within the drying chamber, and all circulation loops can fill the drying chamber. Thus, the heat distribution in different parts of the drying chamber is more uniform. After placing clothes in the drying chamber, the different parts of the clothes receive more uniform heating, which improves the drying efficiency.

Description

Technical Field

[0001] This application relates to the field of household appliance technology, and in particular to an air supply device and a clothes dryer. Background Technology

[0002] A clothes dryer is a household appliance that uses electric heating to instantly evaporate the moisture from washed clothes. As people's living standards continue to improve, the demand for clothes dryers is also increasing. However, current clothes dryers suffer from uneven temperature distribution inside, resulting in different degrees of dryness in different parts of the clothes, thus requiring repeated drying processes. Summary of the Invention

[0003] This application addresses the problem of uneven temperature distribution inside existing clothes dryers by proposing an air supply device and a clothes dryer that achieves uniform temperature distribution in all internal areas, thus ensuring consistent drying effects on all parts of the clothes being dried.

[0004] An air supply device, comprising:

[0005] Base;

[0006] The housing, together with the base, forms a drying chamber for holding clothing; and

[0007] An air outlet mechanism is provided on the base and is disposed opposite to the top of the drying chamber. The air outlet mechanism has multiple air outlets and is configured to deliver multiple upward hot airflows to the drying chamber in multiple directions through the multiple air outlets. The multiple upward airflows can be blocked by the top of the drying chamber to form downward airflows.

[0008] In one embodiment, the air outlet mechanism includes two first air outlets arranged diagonally, each of the first air outlets having at least one air outlet portion;

[0009] The air outlet portion of any one of the first air outlet components includes a first air outlet portion, the first air outlet portion outlets air toward another first air outlet component, and the air outlet direction of the first air outlet portion intersects with a first direction;

[0010] Wherein, the first direction is the direction in which the base is opposite to the top of the drying chamber.

[0011] In one embodiment, the first air outlet further includes a second air outlet, the air outlet direction of the second air outlet intersecting the air outlet direction of the first air outlet.

[0012] In one embodiment, the angle formed between the air guide plate of the first air outlet and the plane where the base is located is an obtuse angle; the angle formed between the air guide plate of the second air outlet and the plane where the base is located is also an obtuse angle.

[0013] In one embodiment, all of the air outlets are arranged radially, and at least some of the air outlets have intersecting air outlet directions.

[0014] In one embodiment, the air outlet mechanism includes a plurality of second air outlets arranged in a ring, wherein one of the second air outlets is arranged around an adjacent second air outlet, and each second air outlet is provided with at least one air outlet portion.

[0015] In one embodiment, the air outlet directions of the air outlets between any two second air outlets intersect.

[0016] In one embodiment, all the second air outlets include a first sub-air outlet, a second sub-air outlet, and a third sub-air outlet, wherein the second sub-air outlets are arranged around the first sub-air outlets and the third sub-air outlets are arranged around the second sub-air outlets.

[0017] The air outlet direction of the air outlet portion of the first sub-air outlet component is parallel to the first direction, and the air outlet directions of the air outlet portions of the second sub-air outlet component and the third sub-air outlet component intersect with the first direction;

[0018] Wherein, the first direction is the direction in which the base is opposite to the top of the drying chamber.

[0019] In one embodiment, the air outlet portion of the second sub-air outlet is configured as a first annular grille distributed around a central axis, and the air outlet portion of the third sub-air outlet is configured as a second annular grille distributed around a central axis.

[0020] In one embodiment, the angle formed between the air guide plate of the first annular grille and the plane where the base is located is an obtuse angle; the angle formed between the air guide plate of the second annular grille and the plane where the base is located is an acute angle.

[0021] In one embodiment, the air outlet mechanism includes two third air outlets arranged in parallel, the air outlet directions of the air outlet portions of the two adjacent third air outlets are the same, the circulation loops formed by the air outlet portions of the two third air outlets respectively overlap at least partially, and the two together cover the drying chamber.

[0022] In one embodiment, the air outlet portion of the third air outlet is configured as a first air outlet grille, a second air outlet grille, and a third air outlet grille arranged sequentially, wherein the air outlet directions of the first air outlet grille, the second air outlet grille, and the third air outlet grille are all different.

[0023] In one embodiment, the first air vent grille and the second air vent grille have opposite air vent directions.

[0024] In one embodiment, the angle formed between the air guide plate of the first air outlet grille and the plane where the base is located is an obtuse angle, the angle formed between the air guide plate of the second air outlet grille and the plane where the base is located is an acute angle, and the angle formed between the air guide plate of the third air outlet grille and the plane where the base is located is a right angle.

[0025] The aforementioned air supply device and dryer ensure that the rising hot airflow from different air outlets forms different circulation loops within the drying chamber, completely filling the chamber. This results in a more even distribution of heat across different parts of the drying chamber. When clothes are placed inside, the heating is more uniform, improving drying efficiency. Attached Figure Description

[0026] Figure 1 An exploded view of an air supply device equipped with a first air outlet element provided in some embodiments of this application.

[0027] Figure 2 This is a schematic diagram of the airflow direction of the air supply device provided in some embodiments of this application.

[0028] Figure 3 This is a schematic diagram of the structure of the first air outlet component of the air supply device provided in some embodiments of this application.

[0029] Figure 4 This is a cross-sectional view of the first air outlet of an air supply device provided in some embodiments of this application.

[0030] Figure 5 An exploded view of an air supply device equipped with a second air outlet element provided in some embodiments of this application.

[0031] Figure 6 This is a schematic diagram of the structure of the second air outlet component of the air supply device provided in some embodiments of this application.

[0032] Figure 7 A cross-sectional view of the second air outlet of an air supply device provided in some embodiments of this application.

[0033] Figure 8An exploded view of an air supply device equipped with a third air outlet element provided in some embodiments of this application.

[0034] Figure 9 This is a schematic diagram of the airflow direction of the air supply device provided in some embodiments of this application.

[0035] Figure 10 This is a schematic diagram of the structure of the third air outlet component of the air supply device provided in some embodiments of this application.

[0036] Figure 11 A cross-sectional view of the third air outlet of an air supply device provided in some embodiments of this application.

[0037] Explanation of reference numerals in the attached figures:

[0038] 10. Base; 20. Housing; 30. Air outlet mechanism; 31. Air outlet section; 32. First air outlet component; 321. First air outlet section; 322. Second air outlet section; 33. Second air outlet component; 331. First sub-air outlet component; 332. Second sub-air outlet component; 333. Third sub-air outlet component; 34. Third air outlet component; 341. First air outlet grille; 342. Second air outlet grille; 343. Third air outlet grille; 40. Air guide plate; X, first direction; Y, second direction; Z, third direction; 100. Air supply device; 1000. Clothes dryer. Detailed Implementation

[0039] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0040] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0041] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0042] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0043] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0044] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0045] Please see Figure 1 This application provides an air supply device 100 in some embodiments. The air supply device 100 includes a base 10, a housing 20, and an air outlet mechanism 30. The housing 20 and the base 10 together form a drying chamber for holding clothing. The air outlet mechanism 30 is disposed on the base 10 and is positioned opposite the top of the drying chamber. The air outlet mechanism 30 has multiple air outlets 31 and is configured to deliver multiple upward hot airflows into the drying chamber in multiple directions through the multiple air outlets 31. These upward airflows can be blocked by the top of the drying chamber to form downward airflows.

[0046] The working principle of the air supply device 100 will be explained below, taking its application in the dryer 100 as an example.

[0047] like Figure 1 As shown, the air outlet 31 can be an air vent opened on the base 10, and different air outlets have different opening directions into the drying chamber. Different air outlets can deliver rising hot airflows flowing in different directions. Taking one of the air outlets 31 as an example, the rising hot airflow delivered by this air outlet 31 can first flow towards the top of the drying chamber. When the rising hot airflow reaches the top of the drying chamber, it can be blocked by the top of the drying chamber, thereby changing the flow direction.

[0048] As the rising hot airflow continues to flow, the heat it carries gradually decreases. Therefore, after the rising hot airflow is blocked by the top of the drying chamber, part of it can flow along the top of the drying chamber, while the other part can form a descending airflow. When the descending airflow flows to the bottom of the drying chamber, it can be blocked by the bottom of the drying chamber and change direction again. Some of the descending airflow flows to the air outlet 31, thus forming a circulation loop in the drying chamber.

[0049] It should be noted that all rising airflows, after being blocked by the top of the drying chamber, will gradually form descending airflows and eventually form a circulation loop.

[0050] Because the air outlets 31 have different air outlet directions, the rising hot airflows delivered by the different air outlets 31 can ultimately form different circulation loops within the drying chamber, and all circulation loops can fill the drying chamber. In this way, the heat distribution in different parts of the drying chamber is more uniform. After placing clothes in the drying chamber, the different parts of the clothes receive more uniform heating, which can improve the drying efficiency of the clothes.

[0051] like Figure 2 As shown, in some embodiments, the air outlet mechanism 30 includes two first air outlet members 32 arranged diagonally, each first air outlet member 32 having at least one air outlet portion 31; the air outlet portion 31 of any one first air outlet member 32 includes a first air outlet portion 321, the first air outlet portion 321 discharging air toward the other first air outlet member 32, and the air outlet direction of the first air outlet portion 321 intersects with a first direction X. Wherein, the first direction X is the direction opposite to the top of the base 10 and the drying chamber.

[0052] For example, in Figure 2In the example shown, each first air outlet 32 ​​includes multiple air outlet sections 31, and the air outlet directions of all the air outlet sections 31 on the first air outlet 32 ​​may be different. However, the first air outlet section 321 of the air outlet section 31 on each first air outlet 32 ​​can outlet air towards another first air outlet 32. In this way, the airflow delivered by the first air outlet section 321 of each first air outlet 32 ​​can converge in the drying chamber and form a circulation loop in the drying chamber.

[0053] Because the two first air outlets 32 are arranged diagonally and located at the two corners of the base 10, the different first air outlets 32 can deliver air to their surroundings and at their opposite angles, and the airflow delivered by the two first air outlets 32 can converge in certain areas along the line connecting them. In other words, the drying chamber can be roughly divided into two areas, each of which is acted upon by one first air outlet 32.

[0054] In this way, the temperature of different parts of the drying chamber can be made as equal as possible while minimizing the number of first air outlet components 32.

[0055] Please see Figure 3 In some embodiments, the first air outlet 32 ​​further includes a second air outlet 322, the air outlet direction of the second air outlet 322 intersecting the air outlet direction of the first air outlet 321.

[0056] For example, the air outlet direction of the first air outlet 321 can be towards the second direction Y, and the air outlet direction of the second air outlet 322 can be towards the third direction Z. That is, the air outlet directions of the rising hot air flow delivered from the first air outlet 321 and the rising hot air flow delivered from the second air outlet 322 are different. When the rising hot air flow delivered from different air outlets 31 sinks to form a sinking air flow, it eventually forms multiple circulation loops with different flow directions.

[0057] In this way, the first air outlet 32 ​​can deliver rising hot airflow in different directions, so that multiple different parts of the drying chamber can be simultaneously filled with rising hot airflow and the circulation loop formed by its flow. In this way, when clothes are placed in the drying chamber for drying, the heat received by different parts of the clothes can be as equal as possible, reducing the probability of different parts of the clothes drying to different degrees.

[0058] Specifically, such as Figure 4 As shown, in some embodiments, the angle formed between the plane containing the air guide plate 40 of the first air outlet 321 and the plane containing the base 10 is an obtuse angle; the angle formed between the plane containing the air guide plate 40 of the second air outlet 322 and the plane containing the base 10 is also an obtuse angle.

[0059] For example, the included angle α formed between the plane containing the air guide plate 40 of the first air outlet 321 and the plane containing the base 10 can be in the range of 100° to 120°. The included angle formed between the plane containing the air guide plate 40 of the second air outlet 322 and the plane containing the base 10 can also be in the range of 100° to 120°. The two included angles can be equal or unequal.

[0060] Setting the included angle to an obtuse angle allows the rising hot airflow along the air guide plate 40 to cover a larger area inside the drying chamber, thereby quickly increasing the internal temperature of the drying chamber.

[0061] Please see Figure 5 and Figure 6 In some embodiments, all air outlets 31 are arranged radially, and at least some of the air outlets 31 have intersecting air outlet directions.

[0062] For example, when the air outlet mechanism 30 is located at the center of the base 10, all the air outlets 31 of the air outlet mechanism 30 can simultaneously deliver rising hot airflow in different directions. Since some rising hot airflows can converge during their ascent, forming a single upward airflow with increased heat, it is understandable that the number of upward airflows formed by the convergence of multiple upward hot airflows is numerous, and their flow areas are different. Because the clothes are placed above the air outlet mechanism 30 for drying, and different parts of the drying chamber are filled with rising hot airflows of roughly the same temperature, different parts of the clothes receive approximately the same amount of heat, allowing for uniform heating of the clothes.

[0063] Please continue reading. Figure 6 In some embodiments, the air outlet mechanism 30 includes a plurality of second air outlet members 33 arranged in a ring, wherein one of the second air outlet members 33 is arranged around an adjacent second air outlet member 33, and each second air outlet member 33 is provided with at least one air outlet portion 31.

[0064] For example, there are two second air outlets 33, and each second air outlet 33 has multiple air outlets 31. When all the air outlets 31 deliver rising hot air, some of the rising hot air delivered by the air outlets 31 may be blocked by the side wall of the drying chamber during the rising process, thereby changing the flow direction, so as to merge with other rising hot air and form a rising hot air stream that diffuses in a rotating manner.

[0065] Because the clothes are placed above the air outlet 30, when multiple rising hot air currents converge to form a single rising hot air current, this rising hot air current can dry different parts of the clothes in a wrapping manner. Similarly, different rising hot air currents can collectively form a closed loop. Furthermore, since one of the second air outlets 33 is arranged around another second air outlet 33, all the rising hot air currents ultimately form multiple closed loops, similar to multiple concentric circles of different diameters.

[0066] With this setup, different parts of the drying chamber are filled with rising hot air currents of roughly the same temperature, ensuring that different parts of the clothes receive roughly the same amount of heat, thus heating the clothes evenly.

[0067] Specifically, in some embodiments, the air outlet directions of the air outlet 31 between any two second air outlet members 33 intersect.

[0068] For example, the number of second air outlets 33 is still two. When all air outlets 31 deliver rising hot air, the different rising hot air streams delivered by the different air outlets 31 of the second air outlet 33 can converge to form a single rising hot air stream, and its swirling and diffusion area is A.

[0069] The rising hot airflow from one of the second air outlets 33 can converge with the rising hot airflow from the other second air outlet 33 to form a single rising hot airflow, the area of ​​which is B of rotation and diffusion. Therefore, the two rising hot airflows have different effective areas. This arrangement ensures that the clothing is heated evenly.

[0070] In some embodiments, all second air outlets 33 include a first sub-air outlet 331, a second sub-air outlet 332, and a third sub-air outlet 333. The second sub-air outlet 332 is arranged around the first sub-air outlet 331, and the third sub-air outlet 333 is arranged around the second sub-air outlet 332. The air outlet direction of the air outlet portion 31 of the first sub-air outlet 331 is parallel to the first direction X, and the air outlet directions of the air outlet portions 31 of the second sub-air outlet 332 and the third sub-air outlet 333 intersect with the first direction X. Wherein, the first direction X is the direction in which the base 10 is opposite to the top of the drying chamber.

[0071] The air outlet 31 of the first sub-air outlet 331 discharges air in the first direction X. The rising hot airflow delivered by the first sub-air outlet 331 will not change its upward direction before it touches the clothes or the top of the drying chamber. That is to say, it will not merge with the rising hot airflow delivered by other sub-air outlets before it is obstructed. Therefore, the rising hot airflow delivered by the first sub-air outlet 331 can drive the surrounding rising hot airflow to circulate.

[0072] With the arrangement of the first sub-air outlet 331, the second sub-air outlet 332, and the third sub-air outlet 333, the first sub-air outlet 331 mainly delivers air to the central area of ​​the drying chamber, while the second sub-air outlet 332 and the third sub-air outlet 333 mainly deliver air to the edge area of ​​the drying chamber. Moreover, the three sub-air outlets overlap to provide all-round air supply to the interior of the drying chamber.

[0073] Please see Figure 6In some embodiments, the air outlet 31 of the second sub-air outlet 332 is configured as a first annular grille distributed around the central axis, and the air outlet 31 of the third sub-air outlet 333 is configured as a second annular grille distributed around the central axis.

[0074] Similarly, the air outlet 31 of the second sub-air outlet 332 is also constructed with a third annular grille distributed around the central axis. This simplifies the structure of the air outlet 31 and makes it easier to manufacture.

[0075] like Figure 7 As shown, in some embodiments, the included angle between the plane containing the air guide plate 40 of the first annular grille and the plane containing the base 10 is an obtuse angle; the included angle between the plane containing the air guide plate 40 of the second annular grille and the plane containing the base 10 is an acute angle.

[0076] For example, the included angle b formed between the plane containing the air guide plate 40 of the first annular grille and the plane containing the base 10 can be 100°. The included angle c formed between the plane containing the air guide plate 40 of the second annular grille and the plane containing the base 10 can be 70°.

[0077] In this way, the rising hot airflow along the air guide plate 40 can cover a larger area inside the drying chamber, thereby quickly increasing the internal temperature of the drying chamber.

[0078] In some embodiments, such as Figure 8 and Figure 9 As shown, the air outlet mechanism 30 includes two third air outlet members 34 arranged in parallel. The air outlet directions of the air outlet parts 31 of the two adjacent third air outlet members 34 are the same. The circulation loops formed by the air outlet parts 31 of the two third air outlet members 34 overlap at least partially, and the two together cover the drying chamber.

[0079] For example, two third air outlets 34 are spaced apart from each other on the base 10. Some air outlets 31 of the two third air outlets 34 have the same air outlet direction, while some air outlets 31 have opposite air outlet directions. That is, some air outlets 31 of one third air outlet 34 can deliver air to the other third air outlet 34.

[0080] Because the two third air outlets 34 are arranged in parallel, each third air outlet 34 can supply air to its surroundings and to the third air outlet 34 opposite it, and the airflow delivered by the two third air outlets 34 can converge in certain areas along the line connecting them. That is, the airflow delivered by the air outlets 31 of each third air outlet 34 can converge in the drying chamber and form a circulation loop in the drying chamber, so that the drying chamber is filled with hot airflow.

[0081] This can also be understood as dividing the drying chamber into two areas, each acted upon by a third air outlet 34. In this way, rising hot airflow can be delivered to different parts of the drying chamber, thereby improving the uniformity of heating of the clothes placed within the drying chamber.

[0082] like Figure 10 As shown, in some embodiments, the air outlet 31 of the third air outlet 34 is configured as a first air outlet grille 341, a second air outlet grille 342 and a third air outlet grille 343 arranged in sequence, and the air outlet directions of the first air outlet grille 341, the second air outlet grille 342 and the third air outlet grille 343 are all different.

[0083] For example, the third air outlet grille 343 can deliver air in the second direction Y, the first air outlet grille 341 can deliver air in the third direction Z, and the second air outlet grille 342 can deliver air in the fourth direction. In this way, different air outlet grilles can deliver air in different directions, so that different parts of the drying chamber can be filled with hot airflow, thereby improving the heat uniformity of the clothes placed in the drying chamber.

[0084] Specifically, please refer to Figure 9 and Figure 10 In some embodiments, the air outlet directions of the first air outlet grille 341 and the second air outlet grille 342 are opposite.

[0085] For example, the first air outlet grille 341 can supply air in a third direction Z, and the second air outlet grille 342 can supply air in the opposite direction to the third direction Z. In this way, the range of the rising hot airflow delivered by the two third air outlets 34 can cover the entire drying chamber. This allows for the temperature in different parts of the drying chamber to be as equal as possible while minimizing the number of third air outlets 34.

[0086] In some embodiments, such as Figure 11 As shown, the angle formed between the air guide plate 40 of the first air outlet grille 341 and the plane where the base 10 is located is an obtuse angle, the angle formed between the air guide plate 40 of the second air outlet grille 342 and the plane where the base 10 is located is an acute angle, and the angle formed between the air guide plate 40 of the third air outlet grille 343 and the plane where the base 10 is located is a right angle.

[0087] For example, the included angle d formed between the plane containing the air guide plate 40 of the first air outlet grille 341 and the plane containing the base 10 can be 120°. The included angle e formed between the plane containing the air guide plate 40 of the second air outlet grille 342 and the plane containing the base 10 can be 60°.

[0088] In this way, the rising hot airflow along the air guide plate 40 can cover a larger area inside the drying chamber, thereby quickly increasing the internal temperature of the drying chamber.

[0089] Furthermore, some embodiments of this application also provide a clothes dryer 1000. The clothes dryer 1000 includes the air supply device 100 from any of the above embodiments. Please refer to the relevant description above for information regarding the air supply device 100.

[0090] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0091] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. An air supply device, characterized in that, include: Base (10); The housing (20), together with the base (10), forms a drying chamber for placing clothes; as well as An air outlet mechanism (30) is provided on the base (10) and is disposed opposite to the top of the drying chamber. The air outlet mechanism (30) has multiple air outlets (31). The air outlet mechanism (30) is configured to deliver multiple upward hot airflows to the drying chamber in multiple directions through the multiple air outlets (31). The multiple upward hot airflows can be blocked by the top of the drying chamber to form a downward airflow. All of the air outlets (31) are arranged radially, and the air outlet directions of at least some of the air outlets (31) intersect. The air outlet mechanism (30) includes a plurality of second air outlets (33) arranged in a ring, one of which is arranged around an adjacent second air outlet (33). Each second air outlet (33) is provided with at least one air outlet (31), and the air outlet directions of the air outlets (31) between any two second air outlets (33) intersect.

2. The air supply device according to claim 1, characterized in that, All of the second air outlets (33) include a first sub-air outlet (331), a second sub-air outlet (332) and a third sub-air outlet (333), wherein the second sub-air outlet (332) is arranged around the first sub-air outlet (331) and the third sub-air outlet (333) is arranged around the second sub-air outlet (332); The air outlet direction of the air outlet portion (31) of the first sub-air outlet (331) is parallel to the first direction, and the air outlet direction of the air outlet portion (31) of the second sub-air outlet (332) and the third sub-air outlet (333) intersects with the first direction. The first direction is the direction in which the base (10) is opposite to the top of the drying chamber.

3. The air supply device according to claim 2, characterized in that, The air outlet (31) of the second sub-air outlet (332) is configured as a first annular grille distributed around the central axis, and the air outlet (31) of the third sub-air outlet (333) is configured as a second annular grille distributed around the central axis.

4. The air supply device according to claim 3, characterized in that, The angle formed between the plane containing the air guide plate (40) of the first annular grille and the plane containing the base (10) is an obtuse angle; the angle formed between the plane containing the air guide plate (40) of the second annular grille and the plane containing the base (10) is an acute angle.

5. A clothes dryer, characterized in that, Includes the air supply device (100) as described in any one of claims 1-4.

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