Clothes treatment drum assembly of clothes dryer and clothes dryer

Abstract

A clothes treatment drum assembly (100) of a clothes dryer and a clothes dryer (1). The clothes treatment drum assembly (100) of the clothes dryer comprises: a clothes treatment drum (10); the clothes treatment drum (10) comprises a drum body (12) and a drum bottom (11); the drum bottom (11) is provided with an inner air inlet area (11a) and an outer air inlet area (11b); the inner air inlet area (11a) is located at the center of the drum bottom (11), and the outer air inlet area (11b) surrounds the outer side of the inner air inlet area (11a); and the drum bottom (11) comprises an air guide portion, the air guide portion extends from outside to inside towards an opening (1b) of a clothes treatment cavity (1a), and the outer air inlet area (11b) is provided on the air guide portion.

Description

Clothes processing drum assembly of clothes dryer and clothes dryer

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application is based on the Chinese patent application with application numbers 202311185437.2 and 202322492989.X and application date September 13, 2023, and claims the priority of the Chinese patent application. The entire content of the Chinese patent application is hereby introduced into this application as a reference. Technical Field

[0003] The present application relates to the technical field of clothes drying equipment, and in particular to a clothes processing barrel assembly of a clothes dryer and a clothes dryer. Background Art

[0004] When the clothes dryer in the related art is working, the air flow penetration in the clothes processing barrel is poor, resulting in some areas being unable to be effectively dried, affecting the drying effect of the clothes dryer, and there is room for improvement.

[0005] Summary of the Invention

[0006] The present application aims to solve at least one of the technical problems existing in the prior art. One purpose of the present application is to provide a clothes treatment drum assembly for a clothes dryer, which can ensure uniform air intake in the clothes treatment chamber, further improve the drying effect, and enhance the user experience.

[0007] The present application also provides a clothes dryer having the clothes processing tub assembly of the clothes dryer.

[0008] According to the first aspect of the present application, the clothing processing barrel assembly of the dryer includes: a clothing processing barrel, the clothing processing barrel including a barrel body and a barrel bottom, the axial ends of the barrel body are open, the barrel bottom closes the opening at one end of the barrel body to define a clothing processing chamber with the barrel body, the barrel bottom has an inner air inlet area and an outer air inlet area, the inner air inlet area is located in the middle of the barrel bottom, and the outer air inlet area surrounds the outer side of the inner air inlet area; wherein, the barrel bottom includes an air guide portion, the air guide portion extends from the outside to the inside toward the open opening of the clothing processing chamber, and the outer air inlet area is arranged on the air guide portion.

[0009] According to the clothing processing barrel assembly of the dryer in the embodiment of the present application, an air guide portion is provided at the bottom of the barrel. Under the guidance of the air guide portion, the air flow in the clothing processing chamber can be gathered toward the middle of the clothing processing chamber, so that the air flow in the middle of the clothing processing chamber forms a high wind pressure with strong penetration ability, thereby achieving the effect of center penetration drying. The air guide portion can also change the air inlet direction of the outer air inlet area, ensure the uniformity of the air inlet in the clothing processing chamber, further improve the drying effect, and help enhance the user experience.

[0010] According to some embodiments of the present application, the inner surface of the air guide portion forms a concave arc surface.

[0011] According to some embodiments of the present application, the air guide portion forms an annular structure and surrounds the outer side of the inner air inlet area.

[0012] In some embodiments, the inner air intake area is provided with a plurality of inner air intake holes, and the plurality of inner air intake holes are arranged at intervals along the circumference of a circle.

[0013] In some embodiments, the clothing processing barrel assembly of the dryer further includes: an air guide cover, which is arranged on the inner side of the barrel bottom and covers the inner air inlet area, and the air guide portion surrounds the outer side of the air guide cover; wherein a ventilation cavity is defined between the air guide cover and the barrel bottom, and the air guide cover includes a plurality of ventilation holes, which connect the ventilation cavity and the clothing processing cavity.

[0014] In some embodiments, the middle portion of the barrel bottom has a concave cavity opening toward the open opening of the clothing processing cavity, and the air guide cover is partially disposed in the concave cavity.

[0015] In some embodiments, the bottom wall of the cavity is provided with a boss protruding toward the open opening of the clothing processing cavity, and the boss is fixedly connected to the air guide cover.

[0016] In some embodiments, the air guide cover has an external ventilation area and an internal ventilation area, the internal ventilation area is located in the middle of the air guide cover, and the external ventilation area surrounds the outside of the internal ventilation area; wherein, the plurality of ventilation holes include external ventilation holes and internal ventilation holes, the plurality of external ventilation holes are arranged in the external ventilation area, and the plurality of internal ventilation holes are arranged in the internal ventilation area.

[0017] In some examples, the plurality of external ventilation holes are divided into a plurality of external ventilation hole groups, the plurality of external ventilation hole groups are spaced apart in the circumferential direction of a circle, and the plurality of external ventilation holes in each of the external ventilation hole groups are spaced apart in the radial direction of the circle.

[0018] In some examples, the plurality of external air inlet holes are divided into a plurality of external air inlet hole groups, the plurality of external air inlet hole groups are arranged at circumferential intervals in the inner air inlet area, and the plurality of external air inlet holes in each external air inlet hole group are arranged at intervals along a preset direction; wherein the number of the external air inlet hole groups and the external air inlet hole groups are equal and the positions correspond one to one.

[0019] In some examples, in each of the outer ventilation hole groups, the flow areas of the plurality of outer ventilation holes increase sequentially from the inside to the outside.

[0020] In some examples, a plurality of reinforcing ribs are provided on a side of the air guide cover facing the barrel bottom, the plurality of reinforcing ribs and the plurality of external ventilation hole groups are alternately arranged in the circumferential direction of the circle, and each of the reinforcing ribs extends radially along the circumference.

[0021] In some embodiments, the air guide cover includes: a middle cover portion, the inner ventilation area is located in the middle cover portion; an annular cover portion, the annular cover portion surrounds the outside of the middle cover portion, the inner ring of the annular cover portion is connected to the middle cover portion and the outer ring is connected to the bottom of the barrel, the annular cover portion extends from the outside to the inside toward the open opening of the clothing processing chamber, and the outer ventilation area is located in the annular cover portion.

[0022] In some examples, the outer surface of the annular cover portion forms a concave arc surface extending from the outside to the inside toward the open opening of the laundry treatment chamber.

[0023] A clothes dryer according to an embodiment of the second aspect of the present application includes the clothes processing tub assembly of the clothes dryer according to the above embodiment.

[0024] According to some embodiments of the present application, the dryer further includes: a baffle, the barrel bottom and the baffle being rotatably engaged with each other; an air duct shell assembly, the air duct shell assembly being arranged on the side of the baffle facing away from the clothing processing barrel and defining a first air duct and a second air duct between the baffle and the dryer; wherein, the dryer has a first drying mode and a second drying mode, in the first drying mode, the inner air inlet area connects the first air duct and the clothing processing chamber, and in the second drying mode, the inner air inlet area connects the first air duct and the clothing processing chamber and the outer air inlet area connects the second air duct and the clothing processing chamber.

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

[0026] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0027] FIG1 is a front view of a clothes treating tub of a clothes dryer according to some embodiments of the present application;

[0028] FIG2 is an enlarged view of portion A shown in FIG1 ;

[0029] FIG3 is a structural sectional view of the laundry treatment tub shown in FIG1 ;

[0030] FIG4 is an enlarged view of portion B shown in FIG3 ;

[0031] FIG5 is a schematic structural diagram of the bottom of the laundry treatment tub shown in FIG1 ;

[0032] FIG6 is a front view of a clothes processing tub assembly of a clothes dryer according to some embodiments of the present application;

[0033] FIG7 is an enlarged view of portion C shown in FIG6;

[0034] FIG8 is a structural sectional view of the laundry treatment tub assembly shown in FIG6;

[0035] FIG9 is an enlarged view of portion D shown in FIG8;

[0036] FIG10 is a perspective view of an air guide cover of a clothes dryer according to some embodiments of the present application;

[0037] FIG11 is a front view of the air guide cover shown in FIG10;

[0038] FIG12 is a side view of the air guide cover shown in FIG10;

[0039] FIG13 is a perspective view of an air guide cover of a clothes dryer according to some embodiments of the present application;

[0040] FIG14 is an enlarged view of portion E shown in FIG13;

[0041] FIG15 is an exploded structural view of an air guide cover of a clothes dryer according to some embodiments of the present application;

[0042] FIG16 is an exploded view of the structure of the air guide cover shown in FIG15;

[0043] FIG17 is a structural diagram of a clothes dryer according to some embodiments of the present application;

[0044] FIG18 is a schematic structural diagram of an air duct housing assembly according to an embodiment of the present application;

[0045] FIG19 is a schematic diagram of the structure shown in FIG18 from another perspective;

[0046] FIG20 is a schematic diagram of the structure shown in FIG18 from another perspective, wherein the air duct housing is in the second air supply state;

[0047] FIG21 is a schematic diagram of the structure shown in FIG20 in a first air supply state;

[0048] FIG22 is a schematic structural diagram of a clothes processing tub and a baffle of a dryer housing according to an embodiment of the present application;

[0049] FIG23 is a schematic structural diagram of an air duct housing assembly according to another embodiment of the present application.

[0050] Reference numerals: clothes dryer 1, clothes treatment barrel assembly 100, clothes treatment barrel 10, clothes treatment chamber 1a, opening 1b, barrel bottom 11, inner air inlet area 11a, outer air inlet area 11b, middle portion 111, inner air inlet hole 1112, concave cavity 1113, boss 1114, convex portion 1115, second connecting hole 1116, positioning hole 1117, first annular portion 112, outer air inlet hole 1122, outer air inlet hole group 1 123, rib 1124, recess 1125, second annular portion 113, matching protrusion 1131, barrel body 12, air guide cover 14, middle cover portion 141, inner ventilation area 1411, inner ventilation hole 1412, annular cover portion 142, outer ventilation area 1421, outer ventilation hole 1422, outer ventilation hole group 1423, card hole 1424, limit hole 1425, connecting column 1426, first connecting hole 1426a, connecting Connecting rib 1427, positioning portion 1428, reinforcing rib 1429, center trim 143, buckle 1431, fixing portion 1432, elastic arm 1433, limiting protrusion 1435, air duct housing assembly 2, air duct housing 21, cover 211, back plate 2111, side wall 2112, spacing rib 212, first end 212a, second end 212b, avoidance opening 2113, electrical control placement area 21a, first air duct 21b , second air duct 21c, first inlet 21c', second inlet 21c″, volute 213, drive mechanism 22, power output shaft 22a, first switch member 23', first rotating shaft 23a, second switch member 23″, second rotating shaft 23b, transmission member 24, drive position 24a, connecting member 25, first position 25a, second position 25b, first arc segment 251, second arc segment 252, baffle 3. DETAILED DESCRIPTION

[0051] The following describes in detail embodiments of the present application. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application and are not to be construed as limiting the present application.

[0052] The following describes a laundry treatment tub assembly 100 of a clothes dryer 1 according to an embodiment of the present application with reference to FIG. 1 to FIG. 16 .

[0053] As shown in Figures 1 to 3, the clothing processing barrel assembly 100 of the dryer 1 according to an embodiment of the present application includes a clothing processing barrel 10, which includes a barrel body 12 and a barrel bottom 11. The barrel body 12 is open at both axial ends, and the barrel bottom 11 closes the opening at one end of the barrel body 12, thereby defining a clothing processing chamber 1a with an open opening 1b between the barrel bottom 11 and the barrel body 12. The barrel bottom 11 has an inner air inlet area 11a and an outer air inlet area 11b. The inner air inlet area 11a is located in the middle of the barrel bottom 11, and the outer air inlet area 11b surrounds the outer side of the inner air inlet area 11a.

[0054] Specifically, the clothes processing tub assembly 100 is applied to the clothes dryer 1. When the clothes dryer 1 is working, air flow can enter the clothes processing chamber 1a from at least one of the inner air inlet area 11a and the outer air inlet area 11b.

[0055] If airflow enters the laundry processing chamber 1a only from the inner air inlet area 11a, it enters the laundry processing chamber 1a from the middle of the bottom 11, flows toward the open opening 1b near the laundry processing chamber 1a, and then flows sequentially toward the barrel body 12 near the laundry processing tub 10 and the outer periphery of the bottom 11 near the laundry processing tub 10, and so on. This repetitive process allows the airflow in the middle of the laundry processing chamber 1a to reach a high wind speed, thereby forming a high wind pressure with strong penetrating ability, achieving the effect of center-penetrating drying. If airflow enters the laundry processing chamber 1a only from the outer air inlet area 11b, it enters the laundry processing chamber 1a from a position near the outer periphery of the bottom 11, flows toward the open opening 1b near the laundry processing chamber 1a, and then flows sequentially toward the center of the laundry processing tub 10 and the middle of the bottom 11 near the laundry processing tub 10, and so on. If the air flow enters the clothing processing chamber 1a from the inner air inlet area 11a and the outer air inlet area 11b, the air flow enters the clothing processing chamber 1a from the middle of the barrel bottom 11 and the position near the outer periphery, and flows toward the open port 1b near the clothing processing chamber 1a, which can increase the air intake volume in the clothing processing chamber 1a and make the air intake more uniform.

[0056] In some embodiments, the clothing processing barrel 10 can be rotatably engaged with the baffle 3 of the dryer 1, and the baffle 3 can be engaged with the air duct shell assembly 2 to define a first air duct and a second air duct, the inner air inlet area 11a can correspond to the position of the first air duct and connect the first air duct and the clothing processing chamber 1a, and the outer air inlet area 11b can correspond to the position of the second air duct and connect the second air duct and the clothing processing chamber 1a.

[0057] The air duct housing assembly 2 also has an air inlet cavity (not shown in the figure), which is connected to the inlet of the first air duct and the inlet of the second air duct. The air duct housing assembly 2 includes an air duct switching mechanism, which is provided at the inlet of the second air duct and is used to switch the on / off state of the second air duct and the air inlet cavity, so that the dryer 1 can operate in at least two drying modes. In one drying mode, the air inlet cavity is only connected to the inlet of the first air duct, so that the air flow enters the clothing processing chamber 1a only from the inner air inlet area 11a. In the other drying mode, the air inlet cavity is connected to the inlet of the first air duct and the inlet of the second air duct, and the air flow can enter the clothing processing chamber 1a from the inner air inlet area 11a and the outer air inlet area 11b respectively. Of course, the drying modes of the dryer 1 are not limited to the above two.

[0058] As shown in Figure 1, in some embodiments, the inner air inlet area 11a is provided with multiple inner air inlet holes 1112, that is, the middle part of the barrel bottom 11 is provided with multiple inner air inlet holes 1112, and air flow can enter the clothing processing chamber 1a from the multiple inner air inlet holes 1112.

[0059] The total flow area of ​​the plurality of inner air inlet holes 1112 is S1, the projected area of ​​the barrel bottom 11 along its axial direction is S, and the ratio of S1 to S is 0.5%-5%. For example, the ratio of the total flow area S1 of the plurality of inner air inlet holes 1112 to the projected area S of the barrel bottom 11 along its axial direction can be 0.5%, 1%, 2%, 3%, 4%, 5%, etc.

[0060] If the ratio of the sum S1 of the flow areas of the multiple inner air inlet holes 1112 to the projected area S of the barrel bottom 11 along its axial direction is too large, the area of ​​the outer air inlet area 11b will be too small. When the airflow enters the clothing processing chamber 1a from the inner air inlet area 11a and the outer air inlet area 11b, uneven air intake will easily occur, resulting in uneven drying effect. When the airflow only enters the clothing processing chamber 1a from the inner air inlet area 11a, due to the limited air volume generated by the wind wheel of the dryer 1, the airflow in the middle of the clothing processing chamber 1a will not be able to reach a higher wind speed, thereby failing to form a high wind pressure with strong penetration ability, and failing to achieve the effect of center penetration drying.

[0061] If the ratio of the sum S1 of the flow areas of the multiple internal air inlet holes 1112 to the projected area S of the barrel bottom 11 along its axial direction is too small, when the air flow only enters the clothing processing chamber 1a from the internal air inlet area 11a, the wind resistance of the internal air inlet area 11a will be too large, reducing the air intake of the clothing processing chamber 1a and causing the compressor to overheat protection.

[0062] The present application limits the ratio of the sum of the flow areas of multiple internal air inlet holes 1112 to the projected area of ​​the barrel bottom 11 along its axial direction within the above-mentioned range. On the one hand, it can ensure that when the air flow enters the clothing processing chamber 1a from the internal air inlet area 11a and the external air inlet area 11b, the air intake of the clothing processing chamber 1a is more uniform, thereby improving the drying effect. On the other hand, it can ensure that when the air flow enters the clothing processing chamber 1a only from the internal air inlet area 11a, the air flow in the middle of the clothing processing chamber 1a can reach a higher wind speed, thereby forming a high wind pressure with strong penetration ability, achieving the effect of center penetration drying, and ensuring the air intake volume of the clothing processing chamber 1a, thereby ensuring that the compressor can work normally.

[0063] Therefore, according to the clothing processing barrel assembly 100 of the dryer 1 in the embodiment of the present application, by limiting the ratio of the sum of the flow areas of the multiple internal air inlet holes 1112 to the projected area of ​​the barrel bottom 11 along its axial direction within the above-mentioned range, the air intake uniformity and wind speed of the dryer 1 in different drying modes can be balanced, thereby ensuring the drying effect of the dryer 1 in different drying modes.

[0064] The total flow area S1 of the plurality of inner air inlet holes 1112 is 30 cm 2 -60cm 2 Specifically, the total flow area S1 of the plurality of inner air inlet holes 1112 may be 30 cm 2 , 40cm 2 、48cm 2 , 55cm 2 、60cm 2 wait.

[0065] Therefore, by limiting the flow area of ​​multiple internal air inlet holes 1112 to the above-mentioned range, it can be ensured that when the air flow only enters the clothing processing chamber 1a from the internal air inlet area 11a, the air flow in the middle of the clothing processing chamber 1a can reach a higher wind speed, thereby forming a high wind pressure with strong penetration ability, achieving the effect of center penetration drying, and ensuring the air intake volume of the clothing processing chamber 1a, ensuring that the compressor can work normally.

[0066] As shown in FIG1 , in some embodiments, multiple inner air inlet holes 1112 are arranged at intervals along the circumference of a circle, with each inner air inlet hole 1112 forming an arc-shaped hole extending circumferentially along the circumference. By configuring the inner air inlet holes 1112 as arc-shaped holes, when air enters the clothing processing chamber 1a only from the inner air inlet area 11a, the airflow in the central portion of the clothing processing chamber 1a can reach a higher wind speed, thereby forming a high wind pressure with strong penetrating ability, achieving a center-penetrating drying effect. Furthermore, the wind resistance in the inner air inlet area 11a can be reduced, ensuring the air flow into the clothing processing chamber 1a and ensuring the normal operation of the compressor.

[0067] In some embodiments, the area of ​​the inner air inlet region 11a is S2, the projected area of ​​the barrel bottom 11 along its axial direction is S, and the ratio of S2 to S is 2.5%-20%. For example, the ratio of the area S2 of the inner air inlet region 11a to the projected area S of the barrel bottom 11 along its axial direction can be 2.5%, 5%, 7.5%, 10%, 12.5%, 15%, 17.5%, 20%, etc.

[0068] If the ratio of the area S2 of the inner air inlet area 11a to the projected area S of the barrel bottom 11 along its axial direction is too large, the area of ​​the outer air inlet area 11b will be too small. When the airflow enters the clothing processing chamber 1a from the inner air inlet area 11a and the outer air inlet area 11b, uneven air intake will easily occur, resulting in uneven drying effect. When the airflow only enters the clothing processing chamber 1a from the inner air inlet area 11a, due to the limited air volume generated by the wind wheel of the dryer 1, the airflow in the middle of the clothing processing chamber 1a will not be able to reach a higher wind speed, thereby failing to form a high wind pressure with strong penetration ability, and failing to achieve the effect of center penetration drying.

[0069] If the ratio of the area S2 of the inner air inlet area 11a to the projected area S of the barrel bottom 11 along its axial direction is too small, the number of inner air inlet holes 1112 and the total flow area of ​​multiple inner air inlet holes 1112 will be reduced. When the air flow only enters the clothing processing chamber 1a from the inner air inlet area 11a, the wind resistance of the inner air inlet area 11a will be too large, which will reduce the air intake of the clothing processing chamber 1a and cause the compressor to overheat protection.

[0070] The present application limits the ratio of the area of ​​the inner air inlet area 11a to the projected area of ​​the barrel bottom 11 along its axial direction within the above-mentioned range. On the one hand, it can ensure that when the airflow enters the clothing processing chamber 1a from the inner air inlet area 11a and the outer air inlet area 11b, the air intake of the clothing processing chamber 1a is more uniform, thereby improving the drying effect. On the other hand, it can ensure that when the airflow enters the clothing processing chamber 1a only from the inner air inlet area 11a, the airflow in the middle of the clothing processing chamber 1a can reach a higher wind speed, thereby forming a high wind pressure with strong penetration ability, achieving the effect of center penetration drying, and ensuring the air intake volume of the clothing processing chamber 1a, thereby ensuring that the compressor can work normally.

[0071] Therefore, according to the clothing processing barrel assembly 100 of the dryer 1 in the embodiment of the present application, by limiting the ratio of the area of ​​the inner air inlet area 11a to the projected area of ​​the barrel bottom 11 along its axial direction within the above-mentioned range, the air inlet uniformity and wind speed of the dryer 1 in different drying modes can be balanced, thereby ensuring the drying effect of the dryer 1 in different drying modes.

[0072] The area S2 of the inner air inlet area 11a is 70 cm 2 -450cm 2 Specifically, the area S2 of the inner air inlet area 11a can be 70cm 2 , 100cm 2 , 150cm 2 , 200cm 2 , 250cm 2 , 300cm 2 、350cm 2 , 400cm 2 , 450cm 2 wait.

[0073] Therefore, by limiting the area of ​​the inner air inlet area 11a to the above-mentioned range, a certain number of inner air inlet holes 1112 or inner air inlet holes 1112 of a certain size can be arranged in the inner air inlet area 11a to ensure that when the air flow only enters the clothing processing chamber 1a from the inner air inlet area 11a, the air flow in the middle of the clothing processing chamber 1a can reach a higher wind speed, thereby forming a high wind pressure with strong penetration ability, achieving the effect of center penetration drying, and ensuring the air intake volume of the clothing processing chamber 1a, ensuring that the compressor can work normally.

[0074] As shown in Figures 1 and 2, in some embodiments, the external air inlet area 11b is provided with a plurality of external air inlet holes 1122, and the air flow can enter the clothing processing chamber 1a from the plurality of external air inlet holes 1122. When the air flow enters the clothing processing chamber 1a from the internal air inlet area 11a and the external air inlet area 11b, the air intake uniformity of the clothing processing chamber 1a can be improved, thereby improving the drying effect.

[0075] The total flow area of ​​the plurality of external air inlet holes 1122 is S3, the projected area of ​​the barrel bottom 11 along its axial direction is S, and the ratio of S3 to S is 4%-8%. For example, the ratio of the total flow area S3 of the plurality of external air inlet holes 1122 to the projected area S of the barrel bottom 11 along its axial direction can be 4%, 5%, 6%, 7%, 8%, etc.

[0076] If the ratio of the sum S3 of the flow areas of the multiple external air inlet holes 1122 to the projected area S of the barrel bottom 11 along its axial direction is too small, when the airflow enters the clothing processing chamber 1a from the inner air inlet area 11a and the outer air inlet area 11b, uneven air intake is likely to occur, resulting in uneven drying effect. When the airflow only enters the clothing processing chamber 1a from the inner air inlet area 11a, due to the limited air volume generated by the wind wheel of the dryer 1, the airflow in the middle of the clothing processing chamber 1a cannot reach a higher wind speed, thereby failing to form a high wind pressure with strong penetration ability, and failing to achieve the effect of center penetration drying.

[0077] If the ratio of the sum S3 of the flow areas of the multiple external air inlet holes 1122 to the projected area S of the barrel bottom 11 along its axial direction is too large, the area of ​​the inner air inlet area 11a will be too small. When the air flow only enters the clothing processing chamber 1a from the inner air inlet area 11a, the wind resistance of the inner air inlet area 11a will be too large, which will reduce the air intake of the clothing processing chamber 1a and cause the compressor to overheat protection.

[0078] The present application limits the ratio of the sum of the flow areas of multiple external air inlet holes 1122 to the projected area of ​​the barrel bottom 11 along its axial direction within the above-mentioned range. On the one hand, it can ensure that when the air flow enters the clothing processing chamber 1a from the inner air inlet area 11a and the outer air inlet area 11b, the air intake of the clothing processing chamber 1a is more uniform, thereby improving the drying effect. On the other hand, it can ensure that when the air flow enters the clothing processing chamber 1a only from the inner air inlet area 11a, the air flow in the middle of the clothing processing chamber 1a can reach a higher wind speed, thereby forming a high wind pressure with strong penetration ability, achieving the effect of center penetration drying, and ensuring the air intake volume of the clothing processing chamber 1a, thereby ensuring that the compressor can work normally.

[0079] Therefore, according to the clothing processing barrel assembly 100 of the dryer 1 in the embodiment of the present application, by limiting the ratio of the sum of the flow areas of multiple external air inlet holes 1122 to the projected area of ​​the barrel bottom 11 along its axial direction within the above-mentioned range, the air intake uniformity and wind speed of the dryer 1 in different drying modes can be balanced, thereby ensuring the drying effect of the dryer 1 in different drying modes.

[0080] The total flow area S3 of the plurality of external air inlet holes 1122 is 120 cm 2 -200cm 2 Specifically, the total flow area S3 of the plurality of external air inlet holes 1122 may be 120 cm 2 , 130cm 2 , 150cm 2 , 170cm 2 , 190cm 2 , 200cm 2 wait.

[0081] Therefore, by limiting the sum of the flow areas of multiple external air inlet holes 1122 to the above range, it can be ensured that when the air flow enters the clothing processing chamber 1a from the inner air inlet area 11a and the outer air inlet area 11b, the air intake of the clothing processing chamber 1a is uniform, thereby ensuring the drying effect.

[0082] As shown in Figures 1 and 2, in some embodiments, the plurality of external air inlet holes 1122 are divided into a plurality of external air inlet hole groups 1123. These external air inlet hole groups 1123 are spaced apart circumferentially around the inner air inlet area 11a, and the plurality of external air inlet holes 1122 within each external air inlet hole group 1123 are spaced apart along a predetermined direction. This arrangement allows for an orderly arrangement of the plurality of external air inlet holes 1122. When air enters the laundry processing chamber 1a from the inner air inlet area 11a and the outer air inlet area 11b, this further ensures uniform airflow around the circumference of the laundry processing chamber 1a, further improving the drying effect.

[0083] It is understandable that the multiple external air inlet holes 1122 are arranged more densely near the middle of the barrel bottom 11 and more sparsely away from the middle of the barrel bottom 11. Therefore, in order to ensure the uniformity of air intake into the laundry processing chamber 1a in its radial direction, the size of the external air inlet holes 1122 near the middle of the barrel bottom 11 can be set to be smaller, and the size of the external air inlet holes 1122 away from the middle of the barrel bottom 11 can be set to be larger. Of course, the shapes and sizes of the multiple external air inlet holes 1122 in each external air inlet hole group 1123 can also be set to be the same.

[0084] In some embodiments, the preset direction is the radial direction of the barrel bottom 11, that is, multiple external air inlet hole groups 1123 are arranged at circumferential intervals in the inner air inlet area 11a, and multiple external air inlet holes 1122 in each external air inlet hole group 1123 are arranged at radial intervals along the barrel bottom 11.

[0085] As shown in FIG. 1 and FIG. 2 , in some embodiments, the preset direction is extending clockwise from the inside to the outside along the radial direction of the barrel bottom 11 .

[0086] For example, as viewed from the opening 1b of the laundry processing chamber 1a, the predetermined direction may be the extension direction of a straight line arranged obliquely relative to the radial direction of the barrel bottom 11, such that the multiple external air inlet holes 1122 in each external air inlet hole group 1123 are staggered from the inside out. For another example, as viewed from the opening 1b of the laundry processing chamber 1a, the predetermined direction may be the extension direction of an arc, with the multiple external air inlet holes 1122 in each external air inlet hole group 1123 being spaced apart along the extension direction of the arc. More specifically, the arc extends clockwise from the inside out along the radial direction of the barrel bottom 11.

[0087] Therefore, by arranging the multiple external air inlet holes 1122 in each external air inlet hole group 1123 in a clockwise direction from the inside to the outside along the radial direction of the barrel bottom 11, when the air flow enters the clothing processing chamber 1a from the inner air inlet area 11a and the outer air inlet area 11b, on the one hand, on the basis of keeping the size of the barrel bottom 11 unchanged, the number of external air inlet holes 1122 in each external air inlet hole group 1123 can be increased, thereby increasing the sum of the flow areas of the multiple external air inlet holes 1122 in each external air inlet hole 1122, thereby increasing the air intake volume of the clothing processing chamber 1a, and on the other hand, each external air inlet hole group 1123 can be formed into an air intake form rotating in the clockwise direction, which is not only conducive to breaking up the clothes, but also makes the air intake more uniform, further improving the drying effect.

[0088] In some embodiments, the flow area of ​​a single external air inlet hole 1122 is smaller than the flow area of ​​a single internal air inlet hole 1112. Compared with the external air inlet area 11b, the wind resistance of the internal air inlet area 11a can be reduced, and the air intake of the clothing processing chamber 1a at the internal air inlet area 11a can be increased, thereby avoiding causing the compressor of the dryer 1 to overheat and ensure that the compressor can work normally.

[0089] As shown in FIG3-5 , in some embodiments, the barrel bottom 11 includes an air guide portion, which extends from the outside to the inside toward the open opening 1b close to the clothing processing chamber 1a, and the outer air inlet area 11b is provided in the air guide portion.

[0090] When the clothes dryer 1 is in operation, the airflow within the clothing processing chamber 1a near the outer periphery of the barrel bottom 11 can be guided by the air guide portion to flow toward the center of the clothing processing chamber 1a and toward the open opening 1b of the clothing processing chamber 1a. This concentrates the airflow, creating a high wind pressure with strong penetrating power in the center of the clothing processing chamber 1a, achieving a center-penetrating drying effect. The air guide portion can also redirect the airflow entering the clothing processing chamber 1a from the outer air inlet area 11b, causing this portion of the airflow to diffuse toward the barrel body 12 and toward the open opening 1b of the clothing processing chamber 1a, making the air intake more uniform.

[0091] According to the clothing processing barrel assembly 100 of the dryer 1 according to the embodiment of the present application, an air guide portion is provided at the bottom 11 of the barrel. Under the guidance of the air guide portion, the airflow in the clothing processing chamber 1a can be gathered toward the middle of the clothing processing chamber 1a, so that the airflow in the middle of the clothing processing chamber 1a forms a high wind pressure with strong penetration ability, thereby achieving the effect of center penetration drying. The air guide portion can also change the air inlet direction of the outer air inlet area 11b, thereby ensuring the uniformity of the air inlet in the clothing processing chamber 1a, further improving the drying effect, and helping to enhance the user experience.

[0092] In some embodiments, the inner surface of the air guide portion is formed into a concave arc surface. This arrangement, on the one hand, allows the airflow within the laundry processing chamber 1a, under the guidance of the air guide portion, to flow toward the center of the laundry processing chamber 1a and the open opening 1b of the laundry processing chamber 1a, thereby increasing the wind speed of the airflow within the laundry processing chamber 1a, thereby forming a high wind pressure with strong penetrating ability, which is conducive to achieving a center-penetrating drying effect. On the other hand, it can change the air inlet direction of the outer air inlet area 11b, causing the airflow to spread toward the barrel 12, thereby filling the laundry processing chamber 1a, making the air inlet within the laundry processing chamber 1a more uniform, and further improving the drying effect of the dryer 1.

[0093] Among them, the air guide part can form an annular structure, and the air guide part surrounds the outside of the inner air inlet area 11a. The guide part can guide the airflow in the circumferential direction of the clothing processing chamber 1a, so that the airflow in the clothing processing chamber 1a can be gathered to the middle of the clothing processing chamber 1a, so that the airflow in the middle of the clothing processing chamber 1a forms a high wind pressure with strong penetration ability, achieving the effect of center penetration drying, and further improving the user experience.

[0094] As shown in Figures 3-5, in some embodiments, the barrel bottom 11 includes a middle portion 111 and a first annular portion 112, the inner air inlet area 11a is arranged in the middle portion 111, the first annular portion 112 surrounds the outside of the middle portion 111, the inner circle of the first annular portion 112 is connected to the middle portion 111, and the outer air inlet area 11b is arranged in the first annular portion 112.

[0095] The first annular portion 112 extends radially from outside to inside toward the opening 1b of the laundry treatment chamber 1a. The first annular portion 112 may form the aforementioned guide portion.

[0096] Therefore, by setting the barrel bottom 11 to include a middle part 111 and a first annular part 112, since the first annular part 112 extends along its radial direction from the outside to the inside toward the open opening 1b close to the clothing processing chamber 1a, under the guidance of the first annular part 112, the airflow in the clothing processing chamber 1a can be gathered toward the middle part of the clothing processing chamber 1a and the open opening 1b, so that the airflow in the middle part of the clothing processing chamber 1a forms a high wind pressure with strong penetration ability, thereby achieving the effect of center penetration drying.

[0097] In addition, the first annular portion 112 can also change the direction of the airflow entering the clothing processing chamber 1a from the external air inlet area 11b, so that this part of the airflow diffuses toward the direction close to the barrel body 12 and toward the open mouth 1b of the clothing processing chamber 1a, making the air intake more uniform, which is beneficial to improving the user experience.

[0098] As shown in FIG3 , the dimension h of the first annular portion 112 in the axial direction of the laundry tub 10 is 10 mm to 20 mm. For example, the dimension h of the first annular portion 112 in the axial direction of the laundry tub 10 can be 10 mm, 12 mm, 15 mm, 18 mm, 20 mm, etc. By limiting the axial dimension of the first annular portion 112 in the laundry tub 10 to the above range, the guiding effect of the first annular portion 112 can be enhanced, further improving the drying effect of the dryer 1.

[0099] As shown in Figures 3 and 5, in some embodiments, the barrel bottom 11 also includes a second annular portion 113, which surrounds the outside of the first annular portion 112, and the inner circle of the second annular portion 113 is connected to the outer circle of the first annular portion 112, and the outer circle of the second annular portion 113 is connected to the barrel body 12.

[0100] Among them, the second annular portion 113 forms a closed structure, that is, the second annular portion 113 is a non-porous structure, and the second annular portion 113 extends along its radial direction from the inside to the outside toward the open opening 1b close to the clothing processing chamber 1a, so that the barrel body 12 and the barrel bottom 11 are connected in an arc transition, avoiding the occurrence of airflow dead corners inside the clothing processing barrel 10, affecting the drying effect.

[0101] Therefore, by setting the barrel bottom 11 to include a middle part 111, a first annular part 112 and a second annular part 113, the barrel bottom 11 is partitioned. The middle part 111 and the first annular part 112 can be used to define two relatively closed air cavities with the baffle 3 of the dryer 1 to ensure the air tightness of the air cavities, so that the dryer 1 can realize the switching of different drying modes.

[0102] In addition, the second annular portion 113 is located outside the air passage cavity and has a non-porous structure, which can not only ensure the airtightness of the laundry treatment tub 10 , but also ensure the structural strength of the tub bottom 11 of the laundry treatment tub 10 .

[0103] As shown in FIG. 3 , a matching protrusion 1131 is provided on a side of the second annular portion 113 facing away from the opening 1 b of the laundry treatment chamber 1 a . The matching protrusion 1131 forms an annular protrusion surrounding the first annular portion 112 .

[0104] The clothing processing barrel assembly 100 is applied to the dryer 1, and a first air passage cavity and a second air passage cavity are defined between the barrel bottom 11 of the clothing processing barrel 10 and the baffle 3. The first air passage cavity can be connected to the above-mentioned first air duct and the inner air inlet area 11a, and the second air passage cavity can be connected to the above-mentioned second air duct and the outer air inlet area 11b. The mating protrusion 1131 on the second annular portion 113 can be sealed and rotatably mated with the baffle 3, thereby ensuring the sealing of the second air passage cavity.

[0105] As shown in Figures 6-16, in some embodiments, the laundry processing tub assembly 100 further includes an air scoop 14, which is disposed on the inner side of the tub bottom 11 and covers the inner air inlet area 11a. A ventilation cavity is defined between the air scoop 14 and the tub bottom 11, and the air scoop 14 has a plurality of spaced-apart ventilation holes that connect the ventilation cavity to the laundry processing chamber 1a.

[0106] When the clothes dryer 1 is in operation, air flows from the inner air inlet area 11a into the ventilation cavity, then enters the clothing processing cavity 1a through the multiple ventilation holes. The airflow exiting the ventilation holes is guided by the air guide 14 into the clothing processing cavity 1a, thereby converging the airflow and creating a high pressure within the clothing processing cavity 1a with strong penetrating power, achieving a centrally penetrated drying effect. Furthermore, the air guide 14 can redirect the airflow, making the airflow into the clothing processing cavity 1a more uniform, further improving the drying effect.

[0107] Therefore, according to the embodiment of the present application, the air guide cover 14 of the dryer 1 is provided at the inner air inlet area 11a, so as to improve the air inlet form in the clothing processing chamber 1a, improve the drying effect, and improve the user experience.

[0108] In some embodiments, the total flow area of ​​the plurality of ventilation holes is S4, the projected area of ​​the barrel bottom 11 along its axial direction is S, and the ratio of S4 to S is 0.3%-3%. For example, the ratio of the total flow area S4 of the plurality of ventilation holes to the projected area S of the barrel bottom 11 along its axial direction can be 0.3%, 0.5%, 1%, 1.5%, 2%, 2.5%, 3%, etc.

[0109] If the ratio of the sum of the flow areas S4 of the multiple ventilation holes to the projected area S of the barrel bottom 11 along its axial direction is too large, the area of ​​the outer air inlet area 11b will be too small. When the airflow enters the clothing processing chamber 1a from the inner air inlet area 11a and the outer air inlet area 11b, uneven air intake will easily occur, resulting in uneven drying effect. When the airflow only enters the clothing processing chamber 1a from the inner air inlet area 11a, due to the limited air volume generated by the wind wheel of the dryer 1, the airflow in the middle of the clothing processing chamber 1a will not be able to reach a higher wind speed, thereby failing to form a high wind pressure with strong penetration ability, and failing to achieve the effect of center penetration drying.

[0110] If the sum of the flow areas of multiple ventilation holes is S4, and the ratio of the projected area of ​​the barrel bottom 11 along its axial direction to S is too small, the number of ventilation holes arranged and the sum of the flow areas of multiple ventilation holes will be reduced. When the air flow only enters the clothing processing chamber 1a from the inner air inlet area 11a, the wind resistance of the inner air inlet area 11a will be too large, which will reduce the air intake of the clothing processing chamber 1a and cause the compressor to overheat protection.

[0111] The present application limits the ratio of the sum of the flow areas of multiple ventilation holes to the projected area of ​​the barrel bottom 11 along its axial direction within the above-mentioned range. On the one hand, it can ensure that when the air flow enters the clothing processing chamber 1a from the inner air inlet area 11a and the outer air inlet area 11b, the air intake of the clothing processing chamber 1a is more uniform, thereby improving the drying effect. On the other hand, it can ensure that when the air flow enters the clothing processing chamber 1a only from the inner air inlet area 11a, the air flow in the middle of the clothing processing chamber 1a can reach a higher wind speed, thereby forming a high wind pressure with strong penetration ability, achieving the effect of center penetration drying, and ensuring the air intake volume of the clothing processing chamber 1a, thereby ensuring that the compressor can work normally.

[0112] The total flow area of ​​the multiple ventilation holes S4 is 10cm 2 -80cm 2 Specifically, the total flow area S4 of the plurality of ventilation holes can be 10cm 2 , 20cm 2 , 40cm 2 、60cm 2 , 70cm 2 , 80cm 2 wait.

[0113] Therefore, by limiting the flow area of ​​multiple ventilation holes within the above-mentioned range, it can be ensured that when the air flow enters the clothing processing chamber 1a only from the inner air inlet area 11a, the air flow in the middle of the clothing processing chamber 1a can reach a higher wind speed, thereby forming a high wind pressure with strong penetration ability, achieving the effect of center penetration drying, and ensuring the air intake volume of the clothing processing chamber 1a, ensuring that the compressor can work normally.

[0114] As shown in Figures 3-4 and 8-9, in some embodiments, a concave cavity 1113 is provided in the middle of the barrel bottom 11, and the concave cavity 1113 opens toward the open opening 1b of the clothing processing chamber 1a. A plurality of internal air inlet holes 1112 are provided on the bottom wall of the concave cavity 1113, and the air guide cover 14 is partially provided in the concave cavity 1113.

[0115] Therefore, by setting a concave cavity 1113 in the middle of the barrel bottom 11, on the one hand, the air guide cover 14 can be pre-positioned to facilitate the fixed connection between the air guide cover 14 and the barrel bottom 11; on the other hand, part of the air guide cover 14 is set in the concave cavity 1113, so that the edge of the air guide cover 14 is hidden in the concave cavity 1113, that is, the barrel bottom 11 wraps the edge of the air guide cover 14 to prevent the edge of the air guide cover 14 or the connection between the air guide cover 14 and the barrel bottom 11 from getting stuck on clothes.

[0116] The clothes processing tub 10 can be made of sheet metal, and the air guide cover 14 can be made of plastic.

[0117] As shown in Figures 13 and 14, in some examples, the air guide cover 14 is provided with a plurality of connecting columns 1426 on the side facing the bottom 11 of the clothing processing barrel 10, and the connecting columns 1426 define a first connecting hole 1426a. The bottom 11 of the clothing processing barrel 10 is provided with a plurality of second connecting holes 1116. The air guide cover 14 and the bottom 11 of the clothing processing barrel 10 are connected together by a plurality of fasteners, and each fastener is passed through the first connecting hole 1426a and the second connecting hole 1116.

[0118] In order to improve the structural strength of the connecting column 1426, a plurality of connecting ribs 1427 are provided on the peripheral wall of the connecting column 1426. The plurality of connecting ribs 1427 are arranged at intervals in the circumferential direction of the connecting column 1426, and each connecting rib 1427 is also connected to the bottom 11 of the clothing processing barrel 10.

[0119] As shown in Figure 14, a positioning portion 1428 is provided on the side of the air guide cover 14 facing the bottom 11 of the clothing processing barrel 10, and a positioning hole 1117 is provided on the bottom 11 of the clothing processing barrel 10. The positioning portion 1428 is plugged into and matched with the positioning hole 1117, so that the air guide cover 14 can be pre-installed on the bottom 11 of the clothing processing barrel 10.

[0120] The positioning holes 1117 and the positioning portions 1428 can each include a plurality of them, and the plurality of positioning portions 1428 can be evenly and spaced apart in the circumferential direction of a circle, and the plurality of positioning portions 1428 can be matched with the plurality of positioning holes 1117 in a one-to-one correspondence. By providing a plurality of positioning portions 1428, on the one hand, the stability of pre-installation can be improved, and the installation reliability and installation stability of the air scoop 14 can be improved. On the other hand, when installing the air scoop 14, there is no need to rotate the air scoop 14 360 degrees. Instead, the plurality of positioning portions 1428 can be plugged into the plurality of positioning holes 1117 by simply rotating it a certain angle, which helps to improve the installation efficiency of the air scoop 14.

[0121] As shown in Figures 5 and 14, in some specific examples, the positioning hole 1117 and the second connecting hole 1116 are arranged adjacent to each other, the positioning portion 1428 and the connecting column 1426 are arranged adjacent to each other, and the positioning portion 1428 and the connecting column 1426 are connected together by at least one connecting rib 1427, thereby further improving the structural strength of the positioning portion 1428 and the connecting column 1426.

[0122] As shown in Figures 3-5 and 8-9, in some embodiments, a boss 1114 is provided on the bottom wall of the concave cavity 1113. The boss 1114 protrudes toward the open opening 1b of the laundry processing chamber 1a and is fixedly connected to the air guide cover 14. By providing the boss 1114 on the bottom wall of the concave cavity 1113, the structural strength of the barrel bottom 11 at the concave cavity 1113 can be improved, thereby preventing deformation of the barrel bottom 11 at the concave cavity 1113.

[0123] Specifically, as shown in Figure 5, the circumference of the boss 1114 has multiple protrusions arranged at intervals, an internal air inlet hole 1112 is provided between two adjacent protrusions, and a protrusion is provided between two adjacent internal air inlet holes 1112. That is to say, multiple protrusions and multiple internal air inlet holes 1112 are alternately arranged in the circumference of a circle, thereby further improving the structural strength of the barrel bottom 11 at the concave cavity 1113 and avoiding deformation of the structure of the barrel bottom 11 at the concave cavity 1113.

[0124] In order to further improve the structural strength of the barrel bottom 11 at the concave cavity 1113, a convex portion 1115 is provided at the center of the boss 1114 and protrudes toward the open opening 1b close to the clothing processing chamber 1a.

[0125] As shown in Figures 5 and 6, in some embodiments, the air guide cover 14 covers the inner air inlet area 11a, and the air guide cover 14 has an external ventilation area 1421. The external ventilation area 1421 can form a ring extending circumferentially along a circle. The external ventilation area 1421 is provided with a plurality of external ventilation holes 1422, and the external ventilation holes 1422 connect the ventilation chamber and the clothing processing chamber 1a.

[0126] When the clothes dryer 1 is in operation, air can enter the ventilation cavity from the inner air inlet area 11a, and then enter the clothing processing cavity 1a through the multiple outer vents 1422. The airflow flowing out of the outer vents 1422 can be guided by the air guide 14 into the clothing processing cavity 1a, thereby converging the airflow and creating a high wind pressure with strong penetrating ability within the clothing processing cavity 1a, achieving a central penetration drying effect. The air guide 14 can also change the flow direction of the airflow, making the airflow into the clothing processing cavity 1a more uniform, further improving the drying effect.

[0127] Therefore, by providing an air guide cover 14 at the inner air inlet area 11a, the air inlet form in the clothing processing chamber 1a can be improved, the drying effect can be enhanced, and the user experience can be improved.

[0128] In some embodiments, the plurality of external ventilation holes 1422 are divided into a plurality of external ventilation hole groups 1423 , the plurality of external ventilation hole groups 1423 are spaced apart in the circumferential direction of a circle, and the plurality of external ventilation holes 1422 in each external ventilation hole group 1423 are spaced apart in the radial direction of a circle.

[0129] Such an arrangement can enable multiple external ventilation holes 1422 to be arranged in an orderly manner. When the air flow enters the ventilation cavity from the inner air inlet area 11a, it can enter the clothing processing cavity 1a from the multiple external ventilation holes 1422 on the outer ventilation area 1421, further ensuring the uniformity of the air intake of the clothing processing cavity 1a in its circumferential direction, and further improving the drying effect.

[0130] As shown in Figures 6 and 7, in some embodiments, the multiple external air inlet holes 1122 are divided into multiple external air inlet hole groups 1123, and the multiple external air inlet hole groups 1123 are arranged at circumferential intervals in the inner air inlet area 11a. The multiple external air inlet holes 1122 in each external air inlet hole group 1123 are arranged at intervals along a preset direction, and the number of multiple external air inlet hole groups 1423 and the multiple external air inlet hole groups 1123 are equal and the positions correspond one to one.

[0131] Therefore, by making the number of multiple external ventilation hole groups 1423 and the multiple external air inlet hole groups 1123 equal and their positions correspond one to one, on the one hand, the consistency of the arrangement of the multiple external ventilation hole groups 1423 and the multiple external air inlet hole groups 1123 can be ensured, which is conducive to improving the visual experience. On the other hand, the multiple ventilation hole groups are equivalent to the continuation structure of the multiple external air inlet hole groups 1123, which can further ensure the uniformity of the air intake of the clothing processing chamber 1a in its circumferential direction, and further improve the drying effect.

[0132] It can be understood that the multiple external ventilation holes 1422 are arranged more densely near the middle of the barrel bottom 11 and more sparsely away from the middle of the barrel bottom 11. Therefore, in order to ensure the uniformity of air intake into the clothing processing chamber 1a in its radial direction, in some embodiments, in each external ventilation hole group 1423, the flow area of ​​the multiple external ventilation holes 1422 increases successively from the inside to the outside, that is, the size of the external ventilation holes 1422 near the middle of the barrel bottom 11 can be set to be smaller, and the size of the external ventilation holes 1422 away from the middle of the barrel bottom 11 can be set to be larger.

[0133] Of course, the shapes and sizes of the multiple external ventilation holes 1422 in each external ventilation hole group 1423 can also be set to be the same; or, the flow areas of the multiple external ventilation holes 1422 in each external ventilation hole group 1423 increase sequentially from the outside to the inside.

[0134] As shown in FIG14 , in some embodiments, a plurality of reinforcing ribs 1429 are provided on the side of the air scoop 14 facing the barrel bottom 11. These ribs 1429 and the plurality of external vent groups 1423 are arranged alternately circumferentially, with each rib 1429 extending radially along the circumference. Providing these ribs 1429 on the side of the air scoop 14 facing the barrel bottom 11 improves the structural strength and rigidity of the air scoop 14, thereby enhancing its ability to resist deformation and improving its reliability.

[0135] As shown in Figures 1 and 2, in some embodiments, the outer air inlet area 11b is further provided with a plurality of ribs 1124, which protrude into the clothing processing chamber 1a. The plurality of ribs 1124 are arranged at intervals in the circumferential direction of the inner air inlet area 11a, and each rib 1124 extends in a circumferential spiral in the inner air inlet area 11a.

[0136] According to the clothing processing barrel assembly 100 of the dryer 1 according to the embodiment of the present application, a plurality of ribs 1124 are arranged on the outer air inlet area 11b. On the one hand, the plurality of ribs 1124 can guide the airflow from the outer air inlet area 11b into the clothing processing chamber 1a, so that the airflow entering the clothing processing chamber 1a can be gathered together to form a high wind pressure with strong penetrating ability, thereby achieving the effect of center-penetrating drying and solving the problem of the center of the clothes being wrapped but not dried thoroughly. On the other hand, the clothes in the clothing processing chamber 1a can be moved and dispersed to avoid entanglement between the clothes, thereby further improving the drying effect and drying efficiency.

[0137] In some embodiments, a recess 1125 is formed between two adjacent ribs 1124 , and the multiple external air inlet holes 1122 are divided into multiple external air inlet hole groups 1123 . The multiple external air inlet hole groups 1123 are arranged at circumferential intervals in the inner air inlet area 11a and are arranged one-to-one in the multiple recesses 1125 .

[0138] Therefore, by arranging multiple external air inlet hole groups 1123 in multiple recesses 1125, not only can the hole edges of the external air inlet holes 1122 be prevented from scratching the clothes, but the clothes can also contact the multiple ribs 1124, so that a channel for air flow is formed between the clothes and the recesses 1125, preventing the clothes from blocking the external air inlet holes 1122, allowing the air flow to enter the clothing processing chamber 1a from the external air inlet holes 1122, ensuring the air intake of the clothing processing chamber 1a, and further improving the drying effect and drying efficiency.

[0139] As shown in FIG. 2 and FIG. 7 , the multiple external air inlet holes 1122 in each external air inlet hole group 1123 are arranged at intervals in the extension direction of the recess 1125 , so that the air intake into the clothing processing chamber 1 a is more uniform, further improving the drying effect.

[0140] In some embodiments, the air guide cover 14 also has an inner ventilation area 1411, which is located in the middle of the air guide cover 14, and an outer ventilation area 1421 surrounds the outside of the inner ventilation area 1411. The inner ventilation area 1411 is provided with a plurality of inner ventilation holes 1412, which connect the ventilation cavity and the clothing processing cavity 1a.

[0141] When the air flow enters the clothing processing chamber 1a only from the inner air inlet area 11a, the air flow first enters the ventilation chamber through the inner air inlet area 11a, and then at least a part of the air flow can enter the clothing processing chamber 1a through the multiple inner ventilation holes 1412 on the inner ventilation area 1411, so that the air flow in the middle of the clothing processing chamber 1a can reach a higher wind speed, thereby forming a high wind pressure with strong penetration ability, and achieving the effect of center penetration drying.

[0142] As shown in Figures 6-7 and Figures 10-11, in some embodiments, the air guide cover 14 has an external ventilation area 1421 and an internal ventilation area 1411, the internal ventilation area 1411 is located in the middle of the air guide cover 14, and the external ventilation area 1421 surrounds the outside of the internal ventilation area 1411, and the multiple ventilation holes include external ventilation holes 1422 and internal ventilation holes 1412, multiple external ventilation holes 1422 are arranged in the external ventilation area 1421, and multiple internal ventilation holes 1412 are arranged in the internal ventilation area 1411, and the internal ventilation holes 1412 and the external ventilation holes 1422 are both connected to the ventilation chamber and the clothing processing chamber 1a.

[0143] Therefore, by setting the air guide cover 14 into the above-mentioned structure, on the one hand, when the air flow enters the clothing processing chamber 1a from the inner air inlet area 11a and the outer air inlet area 11b, the air intake of the clothing processing chamber 1a is more uniform, thereby improving the drying effect. On the other hand, it can be ensured that when the air flow only enters the clothing processing chamber 1a from the inner air inlet area 11a, the air flow in the middle of the clothing processing chamber 1a can reach a higher wind speed, thereby forming a high wind pressure with strong penetration ability, achieving the effect of center penetration drying, and ensuring the air intake volume of the clothing processing chamber 1a, thereby ensuring that the compressor can work normally.

[0144] In some embodiments, a plurality of inner ventilation holes 1412 are evenly and spaced apart in the inner ventilation area 1411, which can ensure uniform air intake into the clothing processing chamber 1a.

[0145] In some embodiments, the inner ventilation holes 1412 are formed into polygonal holes. For example, the inner ventilation holes 1412 can be formed into triangular holes, quadrilateral holes, hexagonal holes, etc. This arrangement can block some sound waves while ensuring the amount of air entering, thereby achieving noise reduction.

[0146] Of course, the inner ventilation hole 1412 can also be a circular hole, an elliptical hole, etc., and the specific selection can be made according to actual conditions.

[0147] In some embodiments, the multiple external ventilation holes 1422 are divided into multiple external ventilation hole groups 1423, and the multiple external ventilation hole groups 1423 are arranged at circumferential intervals in the inner ventilation area 1411, and the multiple external ventilation holes 1422 in each external ventilation hole group 1423 are arranged at radial intervals along the inner ventilation area 1411.

[0148] Such an arrangement can enable multiple external ventilation holes 1422 to be arranged in an orderly manner. When the air flow enters the ventilation cavity from the inner air inlet area 11a, it can enter the clothing processing cavity 1a from the multiple external ventilation holes 1422 on the outer ventilation area 1421, further ensuring the uniformity of the air intake of the clothing processing cavity 1a in its circumferential direction, and further improving the drying effect.

[0149] In some embodiments, the ratio of the sum of the flow areas of the plurality of inner ventilation holes 1412 to the sum of the flow areas of the plurality of outer ventilation holes 1422 is 0.1-8. For example, the ratio of the sum of the flow areas of the plurality of inner ventilation holes 1412 to the sum of the flow areas of the plurality of outer ventilation holes 1422 can be 0.1, 0.5, 1, 3, 5, 8, etc.

[0150] If the ratio of the sum of the flow areas of the multiple inner ventilation holes 1412 to the sum of the flow areas of the multiple outer ventilation holes 1422 is too large, the flow areas of the multiple inner ventilation holes 1412 will be too large, and the sum of the flow areas of the multiple outer ventilation holes 1422 will be too small. In this way, when the air flow enters the clothing processing chamber 1a from the inner air inlet area 11a and the outer air inlet area 11b, uneven air intake is likely to occur, resulting in uneven drying effect.

[0151] If the ratio of the sum of the flow areas of the multiple inner ventilation holes 1412 to the sum of the flow areas of the multiple outer ventilation holes 1422 is too small, the sum of the flow areas of the multiple inner ventilation holes 1412 will be too small, and the sum of the flow areas of the multiple outer ventilation holes 1422 will be too large. In this way, when the air flow only enters the clothing processing chamber 1a from the inner air inlet area 11a, due to the limited air volume generated by the wind wheel of the dryer 1, the air flow in the middle of the clothing processing chamber 1a will not be able to reach a higher wind speed, thereby failing to form a high wind pressure with strong penetrating ability, and failing to achieve the effect of center penetration drying.

[0152] Therefore, according to the clothing processing barrel assembly 100 of the dryer 1 according to the embodiment of the present application, by limiting the ratio of the sum of the flow areas of the multiple inner ventilation holes 1412 to the sum of the flow areas of the multiple outer ventilation holes 1422 within the above-mentioned range, the air intake uniformity and wind speed of the dryer 1 in different drying modes can be balanced, thereby ensuring the drying effect of the dryer 1 in different drying modes.

[0153] In some embodiments, the total flow area S51 of the plurality of inner ventilation holes 1412 is 5 cm 2 -40cm 2 The total flow area S52 of the plurality of external ventilation holes 1422 is 5 cm 2 -40cm 2 .

[0154] Specifically, the sum S51 of the flow areas of the multiple inner ventilation holes 1412 and the sum S52 of the flow areas of the multiple outer ventilation holes 1422 can be equal, which can not only ensure the uniformity of the air intake of the clothing processing chamber 1a when the air flow enters the clothing processing chamber 1a from the inner air inlet area 11a and the outer air inlet area 11b, but also ensure that when the air flow enters the clothing processing chamber 1a only from the inner air inlet area 11a, the air flow in the middle of the clothing processing chamber 1a can reach a higher wind speed, thereby forming a high wind pressure with strong penetration ability, achieving the effect of center penetration drying, and ensuring the air intake volume of the clothing processing chamber 1a, ensuring that the compressor can work normally.

[0155] Of course, the sum S51 of the flow areas of the multiple inner ventilation holes 1412 and the sum S52 of the flow areas of the multiple outer ventilation holes 1422 may also be set to be unequal, and the specific selection can be made according to actual conditions.

[0156] As shown in Figures 10 to 16, in some embodiments, the air guide cover 14 of the dryer 1 includes a middle cover portion 141 and an annular cover portion 142. The middle cover portion 141 is provided with an inner ventilation area 1411, and the annular cover portion 142 surrounds the outer side of the middle cover portion 141. The inner circle of the annular cover portion 142 is connected to the middle cover portion 141, and the annular cover portion 142 is provided with an outer ventilation area 1421. The annular cover portion 142 extends outward along the axial direction of the middle cover portion 141.

[0157] The inner ventilation area 1411 is provided with a plurality of inner ventilation holes 1412, and the outer ventilation area 1421 is provided with a plurality of outer ventilation holes 1422. In other words, the middle cover portion 141 is provided with a plurality of inner ventilation holes 1412 arranged at intervals, and the annular cover portion 142 is provided with a plurality of outer ventilation holes 1422 arranged at intervals. Airflow enters the ventilation cavity from the inner air inlet area 11a. A portion of the airflow can enter the clothing treatment cavity 1a through the plurality of inner ventilation holes 1412 in the middle cover portion 141, while another portion of the airflow can enter the clothing treatment cavity 1a through the plurality of outer ventilation holes 1422 in the annular cover portion 142.

[0158] According to the clothing processing barrel assembly 100 of the dryer 1 according to the embodiment of the present application, by adopting the above-mentioned air guide cover 14, the airflow entering the clothing processing chamber 1a from the multiple internal ventilation holes 1412 on the middle cover part 141 can be gathered together to form a high wind pressure with strong penetration ability, thereby achieving the effect of center penetration drying, and solving the problem of the center of the clothes being wrapped but not dried thoroughly. The airflow entering the clothing processing chamber 1a from the multiple external ventilation holes 1422 on the annular cover part 142 can change the air intake direction under the guidance of the annular cover part 142, so that the airflow can fill the clothing processing chamber 1a, thereby making the air intake in the clothing processing chamber 1a more uniform, further improving the drying effect of the dryer 1.

[0159] In some embodiments, the inner ring of the annular cover portion 142 is connected to the middle cover portion 141, and the outer ring of the annular cover portion 142 is connected to the bottom 11 of the drum. The annular cover portion 142 extends from the outside to the inside toward the open opening 1b of the laundry processing chamber 1a. The airflow entering the laundry processing chamber 1a through the multiple external ventilation holes 1422 on the annular cover portion 142 can be redirected by the annular cover portion 142, allowing the airflow to fill the laundry processing chamber 1a. This makes the airflow in the laundry processing chamber 1a more uniform, further improving the drying effect of the dryer 1.

[0160] As shown in Figure 12, in some embodiments, the outer surface of the annular cover portion 142 forms a concave arc surface. Specifically, the outer surface of the annular cover portion 142 forms a concave arc surface extending from the outside to the inside toward the opening 1b of the laundry treatment chamber 1a.

[0161] With such a configuration, on the one hand, the air flow in the clothing processing chamber 1a can flow toward the open opening 1b close to the clothing processing chamber 1a under the guidance of the annular cover portion 142, thereby increasing the wind speed of the air flow in the middle of the clothing processing chamber 1a, thereby forming a high wind pressure with strong penetrating ability, which is conducive to achieving the effect of center penetration drying. On the other hand, the air inlet direction of the external ventilation hole 1422 can be changed so that the air flow can fill the clothing processing chamber 1a, thereby making the air inlet in the clothing processing chamber 1a more uniform, further improving the drying effect of the dryer 1.

[0162] The middle cover portion 141 and the annular cover portion 142 are integrally formed. By integrally forming the middle cover portion 141 and the annular cover portion 142, not only the number of parts can be reduced and the connection structure for connecting the middle cover portion 141 and the annular cover portion 142 is omitted, but also the molding is more convenient, which is conducive to improving the connection reliability of the middle cover portion 141 and the annular cover portion 142 and improving production efficiency.

[0163] As shown in Figures 10-12 and 14-16, in some embodiments, the air guide cover 14 further includes a center decorative piece 143, which is disposed at the connection between the center cover portion 141 and the inner circle of the annular cover portion 142. The material of the center decorative piece 143 can be different from the material of the center cover portion 141 and the annular cover portion 142, and the color of the center decorative piece 143 can also be different from the color of the center cover portion 141 and the annular cover portion 142.

[0164] Therefore, by setting the middle decorative part 143, on the one hand, it can play a decorative effect and enhance the overall visual experience of the clothing processing barrel assembly 100; on the other hand, it can cover the connection position of the middle cover part 141 and the annular cover part 142, for example, it can cover the burrs and other uneven structures at the connection position, so that the outer surface of the middle cover part 141 and the outer surface of the annular cover part 142 are transitionally connected through the middle decorative part 143, thereby avoiding the connection position of the middle cover part 141 and the annular cover part 142 from scratching the clothes.

[0165] As shown in Figures 14 to 16, in some embodiments, a plurality of spaced-apart clip holes 1424 are provided at the connection position between the middle cover portion 141 and the inner circle of the annular cover portion 142, and a plurality of clips 1431 are provided on the side of the middle decorative part 143 facing the barrel bottom 11, and the plurality of clips 1431 are snap-fitted with the plurality of clip holes 1424 in a one-to-one correspondence.

[0166] The middle decorative member 143 may form a closed annular structure, with multiple buckles 1431 spaced apart along the circumference of the middle decorative member 143. Of course, the middle decorative member 143 may also be configured as at least one open annular structure depending on the connection between the middle cover portion 141 and the inner ring of the annular cover portion 142. The specific configuration can be selected based on actual circumstances.

[0167] In the present application, the connection between the middle cover portion 141 and the inner ring of the annular cover portion 142 and the middle decorative piece 143 is connected by a snap-fit ​​connection, which does not require the use of operating tools, making the operation simpler and facilitating connection efficiency. Furthermore, the connection between the middle cover portion 141 and the inner ring of the annular cover portion 142 and the middle decorative piece 143 can be detachably snap-fitted as needed, thereby facilitating cleaning and preventing the accumulation of lint, dust, or bacteria, thereby avoiding secondary contamination of clothing.

[0168] As shown in Figures 14 and 16, in some embodiments, the buckle 1431 includes a fixing portion 1432 and at least two elastic arms 1433. One end of the fixing portion 1432 is connected to the center trim 143, and the other end of the fixing portion 1432 is provided with at least two elastic arms 1433 disposed opposite each other, with a gap between each elastic arm 1433 and the fixing portion 1432. During installation of the center trim 143, the elastic arms 1433 can deform toward the fixing portion 1432. After passing through the locking hole 1424, the elastic arms 1433 return to their original shape, preventing the buckle 1431 from falling out of the locking hole 1424 and ensuring reliable and stable installation of the center trim 143.

[0169] As shown in Figures 14 and 16, in some embodiments, a stopper protrusion 1435 is provided on one side of buckle 1431. A stopper hole 1425 is also provided at the connection between middle cover portion 141 and the inner ring of annular cover portion 142. Stopper hole 1425 communicates with locking hole 1424, and stopper hole 1425 engages with stopper protrusion 1435. By providing stopper protrusion 1435 and stopper hole 1425, buckle 1431 can be positioned, further ensuring the installation reliability and stability of middle decorative component 143.

[0170] In the embodiment where the buckle 1431 includes a fixing portion 1432 and at least two elastic arms 1433 , the limiting protrusion 1435 and the elastic arms 1433 may be disposed on two adjacent sides of the fixing portion 1432 .

[0171] The following describes a clothes dryer 1 according to an embodiment of the present application with reference to the accompanying drawings.

[0172] The clothes dryer 1 according to the embodiment of the present application includes the clothes processing tub assembly 100 of the clothes dryer 1 according to the above embodiment. Since the clothes processing tub assembly 100 of the clothes dryer 1 according to the embodiment of the present application has the above technical effects, the clothes dryer 1 according to the embodiment of the present application also has the above technical effects. That is, by adopting the clothes processing tub assembly 100 of the above dryer 1, the air intake uniformity and wind speed of the clothes dryer 1 in different drying modes can be balanced, thereby ensuring the drying effect of the clothes dryer 1 in different drying modes.

[0173] In some embodiments, the dryer 1 further includes a baffle 3 and an air duct shell assembly 2, the barrel bottom 11 is rotatably engaged with the baffle 3, the air duct shell assembly 2 is arranged on the side of the baffle 3 facing away from the clothing processing barrel 10, and a first air duct and a second air duct are defined between the air duct shell assembly 2 and the baffle 3, the dryer 1 has a first drying mode and a second drying mode, in the first drying mode, the inner air inlet area 11a connects the first air duct and the clothing processing chamber 1a, in the second drying mode, the inner air inlet area 11a connects the first air duct and the clothing processing chamber 1a and the outer air inlet area 11b connects the second air duct and the clothing processing chamber 1a.

[0174] Please refer to Figures 18 to 21. An embodiment of the present application provides a dryer, which includes a housing, a circulation air duct, an impeller, a clothing processing barrel 1 arranged in the housing (refer to Figure 22), a baffle 3 arranged behind the clothing processing barrel 1, and an air duct shell assembly 2 of any embodiment of the present application.

[0175] Referring to Figure 22 , a laundry treatment tub 1 includes a laundry treatment chamber 1a for placing laundry. The front of the laundry treatment tub 1 is open and defines a laundry inlet. For example, referring to Figure 22 , the laundry treatment tub 1 includes a tub body 12 and a tub bottom 11 , which covers the rear end of the tub body 12. A circulating air duct communicates with the laundry treatment chamber 1a to form an air circulation path, that is, air circulates within the laundry treatment chamber 1a.

[0176] Please refer to FIG. 18 to FIG. 17 . The air duct housing assembly 2 includes an air duct housing 21 and an air duct switching mechanism disposed on the air duct housing 21 .

[0177] The front side of the air duct shell 21 is open, and the baffle 3 is arranged between the air duct shell 21 and the clothes processing tub 1. The air duct shell 21 is covered on the baffle 3 of the box body and forms a sealing fit with the baffle 3 to reduce the chance of air leakage from the fitting point between the two.

[0178] For example, a sealing member is attached to the surface of the air duct housing 21 that contacts the baffle 3, so as to improve the sealing performance of the joint between the air duct housing 21 and the baffle 3. The specific material of the sealing member is not limited, for example, including but not limited to felt.

[0179] The air duct housing 21 has an air duct, which is located on the circulating air duct and communicates with the clothes processing chamber 1a, that is, the air flow of the circulating air duct will flow through the interior of the air duct housing assembly 2. That is, the air duct housing 21 is used to guide the flow of the circulating air flow of the dryer.

[0180] The impeller is rotatably installed in the air duct, and the air duct housing 21 takes in air from the axial front side of the impeller and discharges air along the circumference of the impeller. In other words, the cooperation between the impeller and the air duct roughly forms the structure of a centrifugal fan.

[0181] It should be noted that the clothes dryer is equipped with a condensing device for cooling and dehumidifying, a wind wheel and a heating element for heating the dehumidified gas on the circulating air duct. The wind wheel is used to make the airflow in the circulating air duct form a directional flow.

[0182] The drying process and principle of the dryer: the dry hot air flow enters the clothing processing chamber 1a from the downstream of the circulating air duct. In the clothing processing chamber 1a, the dry hot air flow flows through the surface of the wet clothes, exchanges heat and moisture with the wet clothes, absorbs moisture in the clothes, and turns into humid hot air flow. The humid hot air flow enters the upstream of the circulating air duct, and is condensed and dehumidified by the condensing device in the circulating air duct to form a low-temperature dry air flow. The low-temperature dry air flow is heated by the heating element to form a dry hot air flow. The dry hot air flows through the air duct of the air duct shell 21 and enters the clothing processing chamber 1a again. The cycle runs like this to achieve continuous and efficient drying of clothes.

[0183] Referring to Figures 18, 20, and 21, the air duct includes a first air duct 21b and a second air duct 21c. The aforementioned barrier arrangement means that the first air duct 21b and the second air duct 21c do not cross-flow with each other, and airflow entering the first air duct 21b does not flow into the second air duct 21c, and airflow entering the second air duct 21c does not enter the first air duct 21b.

[0184] The air duct switching mechanism is arranged on the air duct housing 21, and includes a driving mechanism 22, a first switch member 23' and a second switch member 23". The first switch member 23' is connected to the second switch member 23" via a connecting member 25 to form a linkage whole. The driving mechanism 22 is directly or indirectly connected to the linkage whole, that is, the first switch member 23' and the second switch member 23" move together.

[0185] The drive mechanism 22 is used to drive the linked overall movement so that the air duct selectively opens or closes the second air duct 21c. In this way, the first switch member 23' and the second switch member 23" can be driven by a single drive mechanism 22 to move simultaneously, so that the air duct housing 21 has different air supply states.

[0186] It should be noted that the selective opening or closing of the second air duct 21c means that the air duct shell 21 has at least two air supply states, namely the first air supply state and the second air supply state, and the air duct switching mechanism enables the air duct shell 21 to switch between the above-mentioned two air supply states.

[0187] In the first air supply state, the air flow in the air duct is delivered from the first air duct 21b, and there is almost no air flow in the second air duct 21c.

[0188] In the second air supply state, the air flow in the air duct is supplied from the first air duct 21b and the second air duct 21c.

[0189] It can be seen from the above that the air supply volume of the first air duct 21b in the first air supply state is greater than the air supply volume in the second air supply state.

[0190] It can be understood that the first air duct 21b and the second air duct 21c supply air to unused parts of the clothing processing barrel 1. In this way, according to actual conditions, air can be selectively supplied to different parts of the clothing processing barrel 1 and the air supply volume of different parts can be adjusted to adjust the drying speed of the unused parts.

[0191] The duct housing assembly 2 of the present embodiment uses a duct switching mechanism to switch the air supply state of the duct housing 21, enabling selective air flow to different parts of the clothing processing chamber 1a. This allows targeted air flow to be increased in areas where clothing drying is difficult, thereby reducing variations in drying levels between different parts and improving the uniformity of the drying effect. A single drive mechanism 22 simultaneously drives the first and second switch elements 23', 23" to adjust the air supply state of the duct housing 21. This reduces the number of drive mechanisms 22 and reduces costs. Only one drive mechanism 22 needs to be controlled, simplifying the control method and increasing product reliability.

[0192] The specific structure of the driving mechanism 22 is not limited. Exemplarily, the driving mechanism 22 is a motor.

[0193] In some embodiments, as shown in FIG22 , the bottom 11 of the laundry processing tub 1 is provided with an inner air inlet area 11a and an outer air inlet area 11b. The inner air inlet area 11a connects the first air duct 21b with the laundry processing chamber 1a. In other words, the airflow from the first air duct 21b enters the laundry processing chamber 1a through the inner air inlet area 11a. The outer air inlet area 11b connects the second air duct 21c with the laundry processing chamber 1a. In other words, the airflow from the second air duct 21c enters the laundry processing chamber 1a through the outer air inlet area 11b.

[0194] The specific arrangement of the first air duct 21b and the second air duct 21c is not limited, for example, left-right arrangement, up-down arrangement, etc.

[0195] For example, referring to Figures 18, 20, and 21, the second air duct 21c surrounds the first air duct 21b. Accordingly, referring to Figure 22, the outer air inlet area 11b surrounds the inner air inlet area 11a. When the air duct housing 21 is in the first air supply state, air enters the laundry processing chamber 1a from the inner air inlet area 11a, and almost no air enters the laundry processing chamber 1a from the outer air inlet area 11b. When the air duct housing 21 is in the second air supply state, air enters the laundry processing chamber 1a from both the inner air inlet area 11a and the outer air inlet area 11b.

[0196] For example, when the humidity of the clothes in the inner air inlet area 11a corresponding to the clothing processing chamber 1a is higher than that of the clothes in other parts, the air duct switching mechanism can be activated so that the air flow is only sent out from the first air duct 21b. At this time, the air intake volume of the inner air inlet area 11a is large, which can speed up the rapid drying of the clothes in the inner air inlet area 11a. When the humidity difference of clothes at various parts in the clothing processing chamber 1a is not large, the air duct switching mechanism can be activated so that airflow is sent out from the first air duct 21b and the second air duct 21c at the same time; when clothes are attached to the inner wall of the clothing processing chamber 1a, the airflow enters the inner air inlet area 11a through the first air duct 21b, and enters the outer air inlet area 11b through the second air duct 21c. The airflow in the inner air inlet area 11a meets the airflow in the outer air inlet area 11b, and the airflow in the outer air inlet area 11b is squeezed by the airflow in the inner air inlet area 11a and deflected toward the inner wall of the clothing processing chamber 1a, thereby increasing the contact efficiency between the clothes attached to the inner wall of the clothing processing chamber 1a and the airflow in the clothing processing chamber 1a, which helps to dry the clothes attached to the inner wall of the clothing processing chamber 1a.

[0197] The air duct switching mechanism includes a transmission member 24. The power output shaft of the drive mechanism 22 drives the switch members 23' and 23" to swing through the transmission member 24. The arrangement of the transmission member 24 can achieve transmission with a large center distance, a long transmission distance, a large stroke, and is easy to manufacture and has low cost.

[0198] In some embodiments, the power output shaft 22a of the driving mechanism 22 and the rotation axes of the switch members 23', 23" are arranged in parallel, which can make the transmission more stable.

[0199] In some embodiments, the air duct housing 21 includes a cover 211, which includes a back plate 2111 and a side wall 2112 arranged along the edge of the back plate 2111. The drive mechanism 22, the first switch element 23', and the second switch element 23" are all located on the same side of the back plate 2111, which does not increase the size of the air duct housing 21 in the front-to-back direction, making the overall structure of the air duct housing 21 more compact.

[0200] In some embodiments, referring to Figures 18 and 20, the first switch member 23' and the second switch member 23" are located on the same side of the driving mechanism 22, so that the driving mechanism 22 will not interfere with the movement of the first switch member 23' and the second switch member 23" in the air duct shell 21, and the driving mechanism 22 will not collide with the first switch member 23' and the second switch member 23" to affect the air supply to the air duct shell 21, and it is beneficial to arrange the driving mechanism 22 close to the side wall 2112, so that the overall structure of the air duct shell 21 is more compact.

[0201] The specific structure of the air duct switching mechanism is not limited.

[0202] In some embodiments, the first switch member 23' is rotatably connected to the air duct housing 21 via a first rotating shaft 23a, and the second switch member 23" is rotatably connected to the air duct housing 21 via a second rotating shaft 23b. The first switch member 23' and the second switch member 23" can rotate around the first rotating shaft 23a and the second rotating shaft 23b, respectively, and the first rotating shaft 23a and the second rotating shaft 23b have a simple structure, are easy to produce, and are convenient to assemble, and do not occupy the assembly space inside the air duct housing 21.

[0203] In some embodiments, the first rotating shaft 23a, the second rotating shaft 23b, and the power output shaft 22a of the driving structure 22 are parallel to each other, so that the first switch 23', the second switch 23" and the driving mechanism 22 can move more smoothly.

[0204] In some embodiments, the air duct shell 21 includes a partition, which separates the area enclosed by the side wall 2112 on the surface of the back panel 2111 into at least the air duct and the electrical control placement area 21a. The electrical control placement area 21a and the air duct are separated, and the driving mechanism 22 is arranged in the electrical control placement area 21a.

[0205] It should be noted that the separation does not mean complete isolation, and it can be understood that the airflow in the air duct will not flow through the electrical component placement area 21a.

[0206] The partition portion separates the space inside the air duct shell 21 into at least the air duct and the electrical control placement area 21a, and the driving mechanism 22 is arranged in the electrical control placement area 21a. In this embodiment, the driving mechanism 22 is not arranged on the back side of the back plate 2111, so the driving mechanism 22 will not increase the size of the air duct shell 21 along the front and rear directions, making the overall structure of the air duct shell 21 more compact; the air duct shell 21 protects the driving mechanism 22 to prevent other external objects from scratching the driving mechanism 22, and there is no need to make an additional protective cover for the driving mechanism 22; at the same time, it can save mold investment costs, reduce assembly processes, and make assembly simpler.

[0207] In some embodiments, a portion of the partition protrudes toward the air duct to form a volute tongue 213. The volute tongue 213 is designed in an arc-shaped streamlined shape to facilitate cutting and guiding the airflow. The driving mechanism 22 drives the linkage overall movement in any manner.

[0208] In some embodiments, referring to Figures 18, 20, and 21, the power output shaft 22a of the drive mechanism 22 is connected to the first switch member 23' via the transmission member 24, and the transmission member 24 passes through the avoidance opening 2113. The drive mechanism 22 drives the first switch member 23' to move via the transmission member 24, and then drives the connecting member 25 and the second switch member 23" to move, thereby achieving a single drive mechanism 22 driving the first switch member 23' and the second switch member 23" to move simultaneously. The avoidance opening 2113 can provide movement space for the transmission member 24 to prevent the transmission member 24 from getting stuck. The transmission member 24 has a long transmission distance and a large stroke, and is easy to manufacture and has a low cost.

[0209] In some embodiments, the air duct housing 21 includes a spacing rib 212. The spacing rib 212 is disposed in the air duct. Specifically, the rear end of the spacing rib 212 is fixedly connected to the back plate 2111, for example, by welding or the like, or they can be integrally formed.

[0210] Referring to Figures 18 and 20 , the circumferential inner surface of the spacing rib 212 defines a first air duct 21b. The first and second ends 212a, 212b of the spacing rib are spaced apart and define the inlet of the first air duct 21b. Both the first and second ends 212a, 212b of the spacing rib are located near the impeller, and airflow from the impeller enters the first air duct 21b through the inlet.

[0211] The circumferential outer surface of the spacing rib 212 and the inner surface of the side wall 2112 define a second air channel 21c. The first end 212a and / or the second end 212b of the spacing rib 212 are spaced apart from the corresponding side wall 2112 to form an inlet of the second air channel 21c.

[0212] In this embodiment, the arrangement of the spacing ribs 212 enables the second air duct 21c to substantially surround the first air duct 21b, resulting in a simple structure. It should be noted that the front ends of the spacing ribs 212 are substantially flush with the sidewalls 2112. When the air duct housing 21 is mounted on the baffle 3, the spacing ribs 212 also abut against the baffle 3. This prevents cross-flow between the first air duct 21b and the second air duct 21c.

[0213] In some embodiments, the profile of the spacing ribs 212 is curved to reduce the flow resistance of the airflow.

[0214] It should be noted that the second air duct 21c may have only one entrance. For example, in some embodiments, the first end 212a of the spacing rib 212 is spaced apart from the side wall 2112 to form an entrance, and the second end 212b of the spacing rib 212 is connected to the side wall 2112; or the second end 212b of the spacing rib 212 is spaced apart from the side wall 2112 to form an entrance, and the first end of the spacing rib 212 is connected to the side wall 2112.

[0215] The second air duct 21c may also have two inlets. For example, referring to Figures 18 and 20, the first end 212a of the spacing rib is spaced apart from the side wall 2112 to form the first inlet 21c' of the second air duct 21c, and the second end 212b of the spacing rib 212 is spaced apart from the side wall 2112 to form the second inlet 21c" of the second air duct 21c. That is, in this embodiment, the number of inlets of the second air duct 21c is two. This form of air inlet allows the airflow in the air duct to enter the second air duct 21c from the first inlet 21c' and the second inlet 21c", thereby facilitating the rapid entry of the airflow into the second air duct 21c and improving the uniformity of the air volume distribution in the second air duct 21c.

[0216] The first switch element 23 ′ is used to open or close the first inlet 21 c ′, and the second switch element 23 ″ is used to open or close the second inlet 21 c ″.

[0217] For example, when the first switch 23' closes the first inlet 21c' and the second switch 23" closes the second inlet 21c", air flows into the first air duct 21b, and the air duct housing assembly 2 only supplies air from the first air duct 21b.

[0218] For example, when the first switch 23' opens the first inlet 21c' and the second switch 23" opens the second inlet 21c", air flows into the first air duct 21b and the second air duct 21c at the same time, and the air duct shell assembly 2 delivers air to the first air delivery area 21b and the second air duct 21c at the same time.

[0219] For example, please refer to Figures 18 and 20, one end of the first switch member 23' can be detachably abutted against the first end 212a of the spacing rib 212, and one end of the second switch member 23" can be detachably abutted against the second end 212b of the spacing rib 212, and the swinging direction of the first switch member 23' is opposite to the swinging direction of the second switch member 23", that is, in the process of the driving mechanism 22 driving the linked overall movement, the first switch member 23' and the second switch member 23" swing in opposite directions, so that the first switch member 23' and the second switch member 23" do not make contact during the movement, thereby affecting the switching of the air supply state of the air duct shell assembly 2; in addition, the first inlet 21c' and the second inlet 21c" can be opened or closed at the same time, and the first switch member 23' and the second switch member 23" abut against the spacing rib 212, which plays a limiting role and does not affect the airflow entering the first air duct 21b.

[0220] When the air duct housing 21 is in the second air supply state, please refer to Figures 18 and 20, the first switch member 23' and the second switch member 23" open the first inlet 21c' and the second inlet 21c" of the second air duct 21c, and the first switch member 23' and the second switch member 23" are arranged roughly along the direction of air flow to reduce the resistance of the first switch member 23' and the second switch member 23" to the air flow.

[0221] When the air duct housing 21 needs to switch from the second air supply state to the first air supply state, the power output shaft of the driving mechanism 22 rotates a certain angle in the counterclockwise direction of Figure 20, driving the transmission member 24 to rotate the same angle in the counterclockwise direction of Figure 20. The second switch member 23" connected to the transmission member 24 can also rotate the same angle in the counterclockwise direction of Figure 20. The first switch member 23' and the second switch member 23" rotate in opposite directions, that is, the first switch member 23' rotates the same angle clockwise in Figure 20, so that one end of the first switch member 23' abuts against the side wall 2112 and the other end abuts against the first end 212a of the spacing rib 212, closing the first inlet 21c' of the second air duct 21c, and one end of the second switch member 23" abuts against the side wall 2112 and the other end abuts against the second end 212b of the spacing rib 212, closing the second inlet 21c" of the second air duct 21c and directing the airflow to the inlet of the first air duct 21b. Please refer to Figure 21 for the state after switching.

[0222] In this embodiment, the first switch element 23 ′ and the second switch element 23 ″ occupy a small space, have a small flow resistance to the airflow, and only need to swing a small angle to achieve the switching of the air supply state.

[0223] There is no limitation on the manner of achieving the opposite swing directions of the first switch member 23 ′ and the second switch member 23 ″.

[0224] In some embodiments, the connection position of the connecting member 25 and the first switch member 23' is a first position 25a, and the connection position of the connecting member and the second switch member 23" is a second position 25b. The first position 25a is located on the side of the swing center of the first switch member 23' away from the spacing rib 212, and the second position 25b is located on the side of the swing center of the second switch member 23" close to the spacing rib 212. In this way, when the driving mechanism 22 drives the linked overall movement, the first switch member 23' and the second switch member 23" can achieve synchronous reverse swing, avoiding scratches during the movement process, which affects the switching of the air supply state.

[0225] In some embodiments, the connection position between the transmission member 24 and the first switch member 23' is the driving position 24a, and the driving position 24a and the first position 25a are located on opposite sides of the swing center of the first switch member 23', so that when the transmission member 24 drives the overall linkage movement, the transmission member 24 and the connecting member 25 will not affect each other, thereby increasing the smoothness of the overall linkage movement.

[0226] The shape of the connecting member 25 is not limited. For example, in some embodiments, referring to FIG. 18 , the connecting member 25 is linear.

[0227] In other embodiments, as shown in FIG. 23 , the connecting member 25 is arcuate, with the driving position 24a located on the side of the first switch member 23' near the center of swing, near the spacing rib 212. The arcuate opening of the connecting member 25 faces away from the spacing rib 212. The arcuate shape of the connecting member 25 reduces resistance to the overall movement of the linkage, facilitating the synchronous movement of the first switch member 23' and the second switch member 23". The arcuate opening of the connecting member 25 is positioned away from the driving position 24a to prevent motion interference with the transmission member 24.

[0228] The connecting member 25 includes a first arc segment 251 and a second arc segment 252. The first arc segment 251 is connected to the second switch member 23", and the second arc segment 252 is connected to the first switch member 23'. The bending direction of the first arc segment 251 and the bending direction of the second arc segment 252 are opposite. The arc opening of the first arc segment 251 is set in the direction of the spacing rib 212, and the opening of the second arc segment 252 is set in the direction away from the spacing rib 212. In this way, the first arc segment 251 will not interfere with the movement of the second switch member 23", and the second arc segment 252 will not interfere with the movement of the first switch member 23'. In addition, the design of the first arc segment 251 and the second arc segment 252 facilitates the transmission of force and more smoothly realizes the switching of the air supply state.

[0229] It is understood that in some embodiments, the default air supply state of the air duct housing 21 when the clothes dryer is turned on can be any one of the first air supply state and the second air supply state. In other words, each time the clothes dryer is turned on, the air duct housing 21 first returns to the default air supply state.

[0230] In another embodiment, the air supply state of the air duct housing 21 at the end of the last drying process of the clothes dryer is used as the initial air supply state of this time.

[0231] Exemplarily, the clothes dryer includes a first clothes drying mode and a second clothes drying mode.

[0232] First clothes drying mode: The air duct switching mechanism closes the entrance of the second air duct 21c, the air duct housing 21 is in the first air supply state, and the clothes processing chamber 1a takes in air from the inner air inlet area 11a;

[0233] Second clothes drying mode: the air duct switching mechanism opens the entrance of the second air duct 21c, the air duct housing 21 is in the second air supply state, and the clothes processing chamber 1a takes in air from the inner air inlet area 11a and the outer air inlet area 11b.

[0234] When the humidity of clothes in different parts of the clothing processing chamber 1a is not much different, the air duct switching mechanism moves so that the air duct shell 21 is in the second air supply state, the air duct shell 21 discharges air relatively evenly, and the clothing processing chamber 1a takes in air from the inner air inlet area 11a and the outer air inlet area 11b, so that each part has a similar air volume and the clothes are dried evenly.

[0235] When the humidity of the clothes at the inner air inlet area 11a corresponding to the clothing processing chamber 1a is higher than the humidity of the clothes at other parts, the air duct switching mechanism moves so that the air duct shell 21 is in the first air supply state. At this time, the air duct shell 21 only discharges air from the first air duct 21b, and the clothing processing chamber 1a only takes in air from the inner air inlet area 11a. At this time, the air volume corresponding to the inner air inlet area 11a is much larger than the air volume in the second drying mode, which can speed up the drying speed of the clothes in the inner air inlet area 11a.

[0236] It should be noted that during the same drying cycle, there may always be only one drying mode. For example, if the clothes do not show obvious tangles or entanglements in the clothes processing tub 1 and the clothes are dried relatively evenly, the dryer will always operate in the first drying mode. For another example, the dryer may operate in the first drying mode during the first half of the drying cycle and in the second drying mode during the second half of the drying cycle; or, the dryer may operate in the second drying mode during the first half of the drying cycle and switch between the first and second drying modes during the second half of the drying cycle until the drying cycle ends.

[0237] Other structures and operations of the clothes dryer 1 according to the embodiment of the present application are well known to those skilled in the art and will not be described in detail here.

[0238] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0239] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and intent of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A clothes treatment barrel assembly of a clothes dryer, wherein: include: A clothes treatment barrel, the clothes treatment barrel comprising a barrel body and a barrel bottom, the barrel body being open at both axial ends, the barrel bottom closing an opening at one end of the barrel body to define a clothes treatment chamber with the barrel body, the barrel bottom having an inner air inlet area and an outer air inlet area, the inner air inlet area being located in the middle of the barrel bottom, and the outer air inlet area surrounding the outer side of the inner air inlet area; Wherein, the bottom of the barrel includes an air guide portion, the air guide portion extends from the outside to the inside in a direction close to the open opening of the clothing processing chamber, and the external air inlet area is arranged on the air guide portion.

2. The laundry treatment tub assembly of a clothes dryer according to claim 1, wherein: The inner surface of the air guide portion forms a concave arc surface.

3. The laundry treatment tub assembly of a clothes dryer according to claim 1 or 2, wherein: The air guide portion forms an annular structure and surrounds the outer side of the inner air inlet area.

4. The laundry treatment tub assembly of a clothes dryer according to claim 3, wherein: The inner air inlet area is provided with a plurality of inner air inlet holes, and the plurality of inner air inlet holes are arranged at intervals along the circumference of a circle.

5. The laundry treatment tub assembly of a clothes dryer according to claim 3 or 4, wherein: Also includes: An air guide cover, the air guide cover is arranged on the inner side of the barrel bottom and covers the inner air inlet area, and the air guide portion surrounds the outer side of the air guide cover; A ventilation cavity is defined between the air guide cover and the barrel bottom, and the air guide cover includes a plurality of ventilation holes, which connect the ventilation cavity and the clothing processing cavity.

6. The laundry treatment tub assembly of a clothes dryer according to claim 5, wherein: The middle part of the barrel bottom is provided with a concave cavity opening toward the open opening of the clothing processing cavity, and the air guide cover is partially arranged in the concave cavity.

7. The laundry treatment tub assembly of a clothes dryer according to claim 6, wherein: The bottom wall of the concave cavity is provided with a boss protruding toward the open opening of the clothing processing cavity, and the boss is fixedly connected to the air guide cover.

8. The laundry treatment tub assembly of a clothes dryer according to any one of claims 5 to 7, wherein: The air guide cover has an outer ventilation area and an inner ventilation area, the inner ventilation area is located in the middle of the air guide cover, and the outer ventilation area surrounds the outer side of the inner ventilation area; Wherein, the plurality of ventilation holes include external ventilation holes and internal ventilation holes, the plurality of external ventilation holes are arranged in the external ventilation area, and the plurality of internal ventilation holes are arranged in the internal ventilation area.

9. The laundry treatment tub assembly of a clothes dryer according to claim 8, wherein: The plurality of outer ventilation holes are divided into a plurality of outer ventilation hole groups, the plurality of outer ventilation hole groups are arranged at intervals in the circumferential direction of a circle, and the plurality of outer ventilation holes in each outer ventilation hole group are arranged at intervals in the radial direction of the circle.

10. The laundry treatment tub assembly of a clothes dryer according to claim 9, wherein: The multiple external air inlet holes are divided into multiple external air inlet hole groups, and the multiple external air inlet hole groups are arranged at intervals in the circumferential direction of the inner air inlet area, and the multiple external air inlet holes in each external air inlet hole group are arranged at intervals along a preset direction; wherein the number of the external air inlet hole groups and the external air inlet hole groups are equal and the positions correspond one to one.

11. The laundry treatment tub assembly of a clothes dryer according to claim 9 or 10, wherein: In each of the outer ventilation hole groups, the flow areas of the plurality of outer ventilation holes increase sequentially from the inside to the outside.

12. The laundry treatment tub assembly of a clothes dryer according to any one of claims 9 to 11, wherein: A plurality of reinforcing ribs are provided on one side of the air guide cover facing the barrel bottom. The plurality of reinforcing ribs and the plurality of external ventilation hole groups are alternately arranged in the circumferential direction of the circle, and each of the reinforcing ribs extends radially along the circle.

13. The laundry treatment tub assembly of a clothes dryer according to any one of claims 8 to 12, wherein: The air guide cover comprises: a middle cover portion, wherein the inner ventilation area is located in the middle cover portion; An annular cover portion, the annular cover portion surrounds the outer side of the middle cover portion, the inner circle of the annular cover portion is connected to the middle cover portion and the outer circle is connected to the bottom of the barrel, the annular cover portion extends from the outside to the inside toward the open opening of the clothing processing chamber, and the external ventilation area is located in the annular cover portion.

14. The laundry treatment tub assembly of a clothes dryer according to claim 13, wherein: The outer surface of the annular cover portion forms a concave arc surface extending from the outside to the inside toward the open opening of the laundry processing chamber.

15. A clothes dryer, wherein: A clothes treating tub assembly comprising a clothes drying machine according to any one of claims 1-14.

16. The clothes dryer according to claim 15, wherein: The clothes dryer further comprises: a baffle, the barrel bottom and the baffle being rotatably matched; an air duct housing component, the air duct housing component being arranged on a side of the baffle plate facing away from the laundry processing tub and defining a first air duct and a second air duct between the air duct housing component and the baffle plate; Wherein, the dryer has a first drying mode and a second drying mode. In the first drying mode, the inner air inlet area is connected to the first air duct and the clothing processing chamber. In the second drying mode, the inner air inlet area is connected to the first air duct and the clothing processing chamber and the outer air inlet area is connected to the second air duct and the clothing processing chamber.

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