CN220813094U

CN220813094U - Clothes treatment barrel assembly of clothes dryer and clothes dryer

Info

Publication number: CN220813094U
Application number: CN202322498994.1U
Authority: CN
Inventors: 马德荣; 巫志远; 王健飞; 牟秋启; 许尧
Original assignee: Wuxi Meizhi Electrical Appliances Co ltd
Current assignee: Wuxi Meizhi Electrical Appliances Co ltd
Priority date: 2023-09-13
Filing date: 2023-09-13
Publication date: 2024-04-19
Anticipated expiration: 2033-09-13

Abstract

The utility model discloses a clothes treating barrel assembly of a clothes dryer and the clothes dryer, wherein the clothes treating barrel assembly comprises: the clothes treatment barrel is provided with an inner air inlet area and an outer air inlet area at the bottom, the inner air inlet area is positioned in the middle of the barrel bottom, the outer air inlet area surrounds the outer side of the inner air inlet area, and the outer air inlet area is provided with a plurality of outer air inlet holes; the outer air inlet area is also provided with a plurality of convex ribs protruding towards the inside of the clothes treatment cavity, the convex ribs are arranged at intervals in the circumferential direction of the inner air inlet area, and each convex rib extends in a spiral manner in the circumferential direction of the inner air inlet area. According to the clothes treatment barrel assembly of the clothes dryer, on one hand, the plurality of ribs can guide airflow entering the clothes treatment cavity from the outer air inlet area to flow, so that the airflow entering the clothes treatment cavity can be gathered together to form high wind pressure with high penetrating capacity, the effect of central penetrating drying is achieved, on the other hand, clothes in the clothes treatment cavity can be stirred and scattered, winding among the clothes is avoided, and the drying effect and drying efficiency are further improved.

Description

Clothes treatment barrel assembly of clothes dryer and clothes dryer

Technical Field

The utility model relates to the technical field of clothes drying equipment, in particular to a clothes treatment barrel assembly of a clothes dryer and the clothes dryer.

Background

When the clothes dryer in the related art works, the air flow penetrating force in the clothes treatment barrel is poor, so that partial areas cannot be dried effectively, the drying effect of the clothes dryer is affected, and there is room for improvement.

Disclosure of utility model

The present utility model aims to solve at least one of the technical problems existing in the prior art. An object of the present utility model is to provide a laundry treating tub assembly of a clothes dryer, which can improve a drying effect and drying efficiency.

The utility model also provides a clothes dryer with the clothes treatment barrel assembly of the clothes dryer.

A laundry treating tub assembly of a clothes dryer according to an embodiment of a first aspect of the present utility model includes: the clothes treatment barrel comprises a barrel body and a barrel bottom, wherein two axial ends of the barrel body are open, one end of the barrel body is closed by the barrel bottom to limit a clothes treatment cavity with the barrel body, the barrel bottom is provided with an inner air inlet area and an outer air inlet area, the inner air inlet area is positioned in the middle of the barrel bottom, the outer air inlet area surrounds the outer side of the inner air inlet area, and a plurality of outer air inlet holes are formed in the outer air inlet area; the outer air inlet area is further provided with a plurality of convex ribs protruding towards the inside of the clothes treatment cavity, the convex ribs are circumferentially arranged at intervals in the inner air inlet area, and each convex rib extends in a spiral mode in the circumferential direction of the inner air inlet area.

According to the clothes treatment barrel assembly of the clothes dryer, the plurality of convex ribs are arranged on the outer air inlet area, so that air flow entering the clothes treatment cavity from the outer air inlet area can be guided to flow, the air flow entering the clothes treatment cavity can be gathered together to form high air pressure with high penetrating capacity, the effect of center penetrating drying is achieved, the problem that clothes are wrapped in the center and dried thoroughly is solved, clothes in the clothes treatment cavity can be stirred and scattered, winding between the clothes is avoided, and drying effect and drying efficiency are further improved.

According to some embodiments of the present utility model, a concave portion is formed between two adjacent ribs, the plurality of outer air inlet holes are divided into a plurality of outer air inlet hole groups, and the plurality of outer air inlet hole groups are arranged at intervals in the circumferential direction of the inner air inlet area and are arranged in the concave portions in a one-to-one correspondence manner.

According to some embodiments of the utility model, a plurality of the outer air intake holes in each of the outer air intake hole groups are arranged at intervals in the extending direction of the recess.

According to some embodiments of the utility model, the laundry treating tub assembly of the clothes dryer further comprises: the air guide cover is arranged on the inner side of the barrel bottom and a ventilation cavity is defined between the air guide cover and the barrel bottom; the air guide cover covers the inner air inlet area and is provided with an outer ventilation area, the outer ventilation area is provided with a plurality of outer ventilation holes, and the outer ventilation holes are communicated with the ventilation cavity and the clothes treatment cavity.

In some embodiments, the plurality of outer vent holes are divided into a plurality of outer vent hole groups, the plurality of outer vent hole groups being spaced apart in a circumferential direction of a circumference, the plurality of outer vent holes in each of the outer vent hole groups being spaced apart in a radial direction of the circumference.

In some examples, the plurality of outer vent groups and the plurality of outer inlet vent groups are equal in number and in a one-to-one correspondence.

In some examples, in each of the outer vent groups, the flow area of the plurality of outer vents increases sequentially from inside to outside.

In some embodiments, the air guide housing further has an inner ventilation zone located in the middle of the air guide housing and the outer ventilation zone surrounds the outer side of the inner ventilation zone; wherein, interior ventilation district is equipped with a plurality of internal ventilation holes, internal ventilation hole intercommunication ventilation chamber with the clothing processing chamber.

In some examples, the wind scooper includes: the inner ventilation area is positioned on the middle cover part; the annular cover part surrounds the outside of well cover part, the inner circle of annular cover part with well cover part is connected and the outer lane with the barrel head is connected, annular cover part is from outside to interior towards being close to the direction of the uncovered opening of clothing processing chamber, outer ventilation zone is located annular cover part.

In some examples, the outer surface of the annular cover portion forms a concave arcuate surface extending from outside to inside in a direction proximate the open mouth of the garment treatment cavity.

In some examples, the wind scooper further comprises: the middle ornament is arranged at the connection position of the middle cover part and the inner ring of the annular cover part.

In some examples, a plurality of clamping holes are arranged at the connection position of the middle cover part and the inner ring of the annular cover part at intervals, a plurality of buckles are arranged on one side of the middle ornament facing the barrel bottom, and the buckles are in clamping fit with the clamping holes in a one-to-one correspondence manner.

In some examples, a limiting protrusion is arranged on one side of the buckle, a limiting hole is further formed in the connecting position of the middle cover part and the inner ring of the annular cover part, the limiting hole is communicated with the clamping hole, and the limiting hole is in plug-in fit with the limiting protrusion.

A clothes dryer according to an embodiment of a second aspect of the present utility model includes the laundry treating tub assembly of the clothes dryer according to the above-described embodiment.

According to some embodiments of the utility model, the clothes dryer further comprises: the barrel bottom is rotatably matched with the baffle; the air duct shell assembly is arranged on one side of the baffle plate, which is opposite to the clothes treatment barrel, and a first air duct and a second air duct are defined between the air duct shell assembly and the baffle plate; the clothes dryer is provided with a first ventilation mode and a second ventilation mode, the inner air inlet area is communicated with the first air duct and the clothes treatment cavity in the first ventilation mode, the inner air inlet area is communicated with the first air duct and the clothes treatment cavity in the second ventilation mode, and the outer air inlet area is communicated with the second air duct and the clothes treatment cavity.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

fig. 1 is a front view of a laundry treating tub of a clothes dryer according to some embodiments of the present utility model;

Fig. 2 is an enlarged view of the portion a shown in fig. 1;

fig. 3 is a structural cross-sectional view of the laundry treating tub shown in fig. 1;

fig. 4 is an enlarged view of the portion B shown in fig. 3;

Fig. 5 is a schematic view of the structure of the tub bottom of the laundry treating tub shown in fig. 1;

Fig. 6 is a front view of a laundry treating tub assembly of a clothes dryer according to some embodiments of the present utility model;

Fig. 7 is an enlarged view of the portion C shown in fig. 6;

Fig. 8 is a structural cross-sectional view of the laundry treating tub assembly shown in fig. 6;

fig. 9 is an enlarged view of the portion D shown in fig. 8;

FIG. 10 is a perspective view of a hood of a clothes dryer according to some embodiments of the utility model;

FIG. 11 is a front view of the air scoop shown in FIG. 10;

FIG. 12 is a side view of the wind scooper shown in FIG. 10;

FIG. 13 is a perspective view of a hood of a clothes dryer according to some embodiments of the utility model;

Fig. 14 is an enlarged view of the portion E shown in fig. 13;

FIG. 15 is a structural exploded view of a guide housing of a clothes dryer according to some embodiments of the present utility model;

FIG. 16 is an exploded view of the structure of the wind scooper shown in FIG. 15;

FIG. 17 is a schematic view of a construction of a dryer according to some embodiments of the present utility model;

FIG. 18 is a schematic view of a duct housing assembly according to an embodiment of the present application;

FIG. 19 is a schematic view of the structure of FIG. 18 from another perspective;

FIG. 20 is a schematic view of the structure of FIG. 18 from another perspective, wherein the duct housing is in a second air-supplying state;

FIG. 21 is a schematic view of the structure of FIG. 20 in a first air supply condition;

Fig. 22 is a schematic structural view of baffles of a laundry treating tub and a cabinet of a clothes dryer according to an embodiment of the present application;

FIG. 23 is a schematic structural view of a duct housing assembly according to another embodiment of the present application.

Reference numerals:

the clothes dryer 1, the laundry treating tub assembly 100,

The laundry treating tub 10, the laundry treating chamber 1a, the opening 1b,

The tub bottom 11, the inner air intake area 11a, the outer air intake area 11b, the middle part 111, the inner air intake 1112, the cavity 1113, the boss 1114, the boss 1115, the second connection hole 1116, the positioning hole 1117, the first annular part 112, the outer air intake 1122, the outer air intake group 1123, the rib 1124, the recess 1125, the second annular part 113, the fitting boss 1131,

The barrel body 12 is provided with a barrel,

The air guiding cover 14, the middle cover part 141, the inner ventilation area 1411, the inner ventilation holes 1412, the annular cover part 142, the outer ventilation area 1421, the outer ventilation holes 1422, the outer ventilation hole group 1423, the clamping holes 1424, the limiting holes 1425, the connecting posts 1426, the first connecting holes 1426a, the connecting ribs 1427, the positioning parts 1428, the reinforcing ribs 1429, the middle decoration parts 143, the buckles 1431, the fixing parts 1432, the elastic arms 1433 and the limiting protrusions 1435,

The air duct housing assembly 2,

The air duct case 21, the housing 211, the back plate 2111, the side wall 2112, the spacer rib 212, the first end 212a, the second end 212b, the escape opening 2113, the electric control component placement area 21a, the first air duct 21b, the second air duct 21c, the first inlet 21c', the second inlet 21c ", the volute tongue 213,

The drive mechanism 22, the power take-off shaft 22a, the first switch element 23', the first rotary shaft 23a, the second switch element 23 ", the second rotary shaft 23b, the transmission element 24, the driving position 24a, the connecting element 25, the first position 25a, the second position 25b, the first arcuate segment 251, the second arcuate segment 252,

And a baffle 3.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

The laundry treating tub assembly 100 of the clothes dryer 1 according to an embodiment of the present utility model is described below with reference to fig. 1 to 16.

As shown in fig. 1 to 3, the laundry treating tub assembly 100 of the clothes dryer 1 according to the embodiment of the present utility model includes a laundry treating tub 10, the laundry treating tub 10 including a tub body 12 and a tub bottom 11, both axial ends of the tub body 12 being open, the tub bottom 11 closing one end opening of the tub body 12, such that a laundry treating chamber 1a having an opening 1b is defined between the tub bottom 11 and the tub body 12, the tub bottom 11 having an inner air intake zone 11a and an outer air intake zone 11b, the inner air intake zone 11a being located at a middle portion of the tub bottom 11, the outer air intake zone 11b surrounding an outer side of the inner air intake zone 11 a.

Specifically, the laundry treating tub assembly 100 is applied to the clothes dryer 1, and when the clothes dryer 1 is operated, air flows may enter the laundry treating chamber 1a from at least one of the inner air intake area 11a and the outer air intake area 11b, respectively.

If the air flow only enters the clothes treating cavity 1a from the inner air inlet area 11a, the air flow enters the clothes treating cavity 1a from the middle part of the barrel bottom 11, flows towards the opening 1b close to the clothes treating cavity 1a, and then flows towards the barrel body 12 close to the clothes treating barrel 10 and the outer periphery of the barrel bottom 11 close to the clothes treating barrel 10 in sequence, and the air flow reciprocates in this way, so that the air flow in the middle part of the clothes treating cavity 1a can reach high wind speed, high wind pressure with strong penetrating capacity is formed, and the effect of center penetrating and drying is achieved.

If the air flow enters the laundry treating chamber 1a only from the outer air inlet area 11b, the air flow enters the laundry treating chamber 1a from a position near the outer periphery of the tub bottom 11, flows toward the opening 1b near the laundry treating chamber 1a, and then flows toward the center of the laundry treating tub 10, near the middle of the tub bottom 11 of the laundry treating tub 10 in sequence, and so forth.

If the air flow enters the clothes treating cavity 1a from the inner air inlet area 11a and the outer air inlet area 11b, the air flow enters the clothes treating cavity 1a from the middle part of the barrel bottom 11 and the position close to the outer periphery, and flows towards the opening 1b close to the clothes treating cavity 1a, the air inlet quantity in the clothes treating cavity 1a can be increased, and the air inlet is more uniform.

In some embodiments, the laundry treating tub 10 may be rotatably engaged with the baffle 3 of the dryer 1, and the baffle 3 may be engaged with the duct housing assembly 2 to define a first duct and a second duct, the inner air intake area 11a may correspond to the position of the first duct and communicate with the first duct and the laundry treating chamber 1a, and the outer air intake area 11b may correspond to the position of the second duct and communicate with the second duct and the laundry treating chamber 1a.

The air duct shell assembly 2 further has an air inlet cavity (not shown in the figure), the air inlet cavity is communicated with the inlet of the first air duct and the inlet of the second air duct, the air duct shell assembly 2 comprises an air duct switching mechanism, the air duct switching mechanism is arranged at the inlet of the second air duct and is used for switching on-off states of the second air duct and the air inlet cavity, so that the clothes dryer 1 can work in at least two clothes drying modes, when in one clothes drying mode, the air inlet cavity is communicated with the inlet of the first air duct only, so that air flow only enters the clothes processing cavity 1a from the inner air inlet area 11a, when in the other clothes drying mode, the air inlet cavity is communicated with the inlet of the first air duct and the inlet of the second air duct, and the air flow can enter the clothes processing cavity 1a from the inner air inlet area 11a and the outer air inlet area 11b respectively. Of course, the drying mode of the dryer 1 is not limited to the above two.

As shown in fig. 1, in some embodiments, the inner air intake area 11a is provided with a plurality of inner air intake holes 1112, that is, a plurality of inner air intake holes 1112 are provided at the middle of the tub bottom 11, and air flow may enter the laundry treating chamber 1a from the plurality of inner air intake holes 1112.

The sum of the flow areas of the inner air inlets 1112 is S1, the projection area of the barrel bottom 11 along the axial direction is S, and the ratio of S1 to S is 0.5% -5%. For example, the ratio of the sum S1 of the flow areas of the plurality of inner air inlets 1112 to the projected area S of the tub bottom 11 in the axial direction thereof may be 0.5%, 1%, 2%, 3%, 4%, 5%, etc.

If the ratio of the sum S1 of the flow areas of the inner air inlet holes 1112 to the projected area S of the tub bottom 11 along the axial direction thereof is too large, the area of the outer air inlet region 11b will be too small, when the air flows from the inner air inlet region 11a and the outer air inlet region 11b into the laundry treatment chamber 1a, the problem of uneven air inlet will easily occur, resulting in uneven drying effect, and when the air flows only from the inner air inlet region 11a into the laundry treatment chamber 1a, the air volume generated by the wind wheel of the dryer 1 is limited, which will result in the middle air flow in the laundry treatment chamber 1a failing to reach a higher wind speed, thereby failing to form a high wind pressure with a stronger penetration capability, failing to realize the effect of center penetration drying.

If the ratio of the sum S1 of the flow areas of the plurality of inner air inlets 1112 to the projected area S of the tub bottom 11 along the axial direction thereof is too small, when the air flow only enters the laundry treating chamber 1a from the inner air inlet area 11a, the air resistance of the inner air inlet area 11a will be too large, the air intake of the laundry treating chamber 1a is reduced, and the overheat protection of the compressor is caused.

According to the application, the ratio of the sum of the flow areas of the inner air inlets 1112 to the projection area of the barrel bottom 11 along the axial direction of the barrel bottom is limited in the range, so that on one hand, when air flows enter the clothes treatment cavity 1a from the inner air inlet area 11a and the outer air inlet area 11b, the air inlet of the clothes treatment cavity 1a is more uniform, the drying effect is improved, and on the other hand, when the air flows only enter the clothes treatment cavity 1a from the inner air inlet area 11a, the air flow in the middle of the clothes treatment cavity 1a can reach higher air speed, thereby forming high air pressure with stronger penetrating capacity, realizing the effect of center penetrating and drying, ensuring the air inlet of the clothes treatment cavity 1a, and ensuring that the compressor can normally work.

Therefore, according to the laundry treating tub assembly 100 of the dryer 1 of the embodiment of the present utility model, by limiting the ratio of the sum of the flow areas of the plurality of inner air inlet holes 1112 to the projected area of the tub bottom 11 in the axial direction thereof to the above-mentioned range, it is possible to balance the uniformity of the air inlet and the air speed of the dryer 1 in different drying modes, and to secure the drying effect of the dryer 1 in different drying modes.

Wherein, the sum S1 of the flow areas of the inner air inlets 1112 is 30cm ²-60cm². Specifically, the sum S1 of the flow areas of the plurality of inner air intake holes 1112 may be 30cm ²、40cm²、48cm²、55cm²、60cm² or the like.

Therefore, by limiting the flow area of the plurality of inner air inlets 1112 to the above range, it is ensured that when the air flow enters the laundry treating chamber 1a only from the inner air inlet area 11a, the air flow in the middle of the laundry treating chamber 1a can reach a higher air speed, thereby forming a high air pressure with a stronger penetration capacity, realizing the effect of center penetration drying, and ensuring the air inlet amount of the laundry treating chamber 1a, and ensuring that the compressor can normally operate.

As shown in fig. 1, in some embodiments, a plurality of inner air intake holes 1112 are arranged at circumferentially spaced intervals along a circumference, each inner air intake hole 1112 forming a circumferentially extending arcuate hole. Through setting the interior inlet 1112 to the arc hole, when the air current only gets into in the clothing processing chamber 1a from interior air inlet district 11a, can make the air current at the middle part in the clothing processing chamber 1a reach higher wind speed on the one hand to form the high wind pressure that has stronger penetrability, realize the effect of center penetration stoving, on the other hand can reduce the windage of interior air inlet district 11a, guarantee the intake of clothing processing chamber 1a, guarantee that the compressor can normally work.

In some embodiments, the area of the inner air inlet region 11a is S2, the projected area of the barrel bottom 11 along the axial direction thereof 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 intake area 11a to the projected area S of the tub bottom 11 in the axial direction thereof may be 2.5%, 5%, 7.5%, 10%, 12.5%, 15%, 17.5%, 20%, etc.

If the ratio of the area S2 of the inner air inlet area 11a to the projected area S of the tub bottom 11 along the axial direction thereof is too large, the area of the outer air inlet area 11b will be too small, when the air flow enters the laundry treatment cavity 1a from the inner air inlet area 11a and the outer air inlet area 11b, the problem of uneven air inlet will easily occur, resulting in uneven drying effect, when the air flow only enters the laundry treatment cavity 1a from the inner air inlet area 11a, the air flow generated by the wind wheel of the clothes dryer 1 is limited, which will result in the middle air flow of the laundry treatment cavity 1a not reaching higher wind speed, thus high wind pressure with stronger penetration capability cannot be formed, and the effect of center penetration drying cannot be achieved.

If the ratio of the area S2 of the inner air inlet area 11a to the projected area S of the tub bottom 11 along the axial direction thereof is too small, the number of the inner air inlet 1112 and the sum of the flow areas of the plurality of inner air inlets 1112 will be reduced, and when the air flow only enters the laundry treating chamber 1a from the inner air inlet area 11a, the wind resistance of the inner air inlet area 11a will be too large, the air inlet amount of the laundry treating chamber 1a will be reduced, and overheat protection of the compressor will be caused.

According to the application, the ratio of the area of the inner air inlet area 11a to the projected area of the barrel bottom 11 along the axial direction of the barrel bottom is limited in the range, so that on one hand, when air flows enter the clothes treatment cavity 1a from the inner air inlet area 11a and the outer air inlet area 11b, the air inlet of the clothes treatment cavity 1a is more uniform, the drying effect is improved, and on the other hand, when the air flows only enter the clothes treatment cavity 1a from the inner air inlet area 11a, the air flow in the middle of the clothes treatment cavity 1a can reach higher air speed, thereby forming high air pressure with stronger penetrating capacity, realizing the effect of center penetrating and drying, ensuring the air inlet quantity of the clothes treatment cavity 1a, and ensuring that the compressor can work normally.

Therefore, according to the laundry treating tub assembly 100 of the dryer 1 of the embodiment of the present utility model, by limiting the ratio of the area of the inner air inlet area 11a to the projected area of the tub bottom 11 in the axial direction thereof to the above range, the air inlet uniformity and the air speed of the dryer 1 in different drying modes can be balanced, and the drying effect of the dryer 1 in different drying modes can be ensured.

The area S2 of the inner intake zone 11a is 70cm ²-450cm². Specifically, the area S2 of the inner intake zone 11a may be 70cm²、100cm²、150cm²、200cm²、250cm²、300cm²、350cm²、400cm²、450cm² or the like.

Therefore, by limiting the area of the inner air inlet area 11a to the above range, a certain number of inner air inlet holes 1112 or a certain size of inner air inlet holes 1112 can be arranged in the inner air inlet area 11a, so that when air flow only enters the clothes treating cavity 1a from the inner air inlet area 11a, the air flow in the middle of the clothes treating cavity 1a can reach a higher air speed, thereby forming a high air pressure with stronger penetrating capacity, realizing the effect of central penetrating drying, ensuring the air inlet quantity of the clothes treating cavity 1a, and ensuring that the compressor can work normally.

As shown in fig. 1 and 2, in some embodiments, the outer air inlet area 11b is provided with a plurality of outer air inlet holes 1122, and air flow can enter the laundry treating chamber 1a from the plurality of outer air inlet holes 1122, and when air flow enters the laundry treating chamber 1a from the inner air inlet area 11a and the outer air inlet area 11b, air inlet uniformity of the laundry treating chamber 1a can be improved, and drying effect can be improved.

The sum of the flow areas of the plurality of outer air inlets 1122 is S3, the projected area of the tub bottom 11 along the axial direction thereof is S, and the ratio of S3 to S is 4% -8%. For example, the ratio of the sum S3 of the flow areas of the plurality of outer air inlets 1122 to the projected area S of the tub bottom 11 in the axial direction thereof may be 4%, 5%, 6%, 7%, 8%, etc.

If the ratio of the sum S3 of the flow areas of the plurality of outer air inlets 1122 to the projected area S of the tub bottom 11 along the axial direction thereof is too small, when the air flows enter the laundry treating chamber 1a from the inner air inlet area 11a and the outer air inlet area 11b, the problem of uneven air inlet easily occurs, resulting in uneven drying effect, and when the air flows only enter the laundry treating chamber 1a from the inner air inlet area 11a, the air quantity generated by the wind wheel of the clothes dryer 1 is limited, so that the air flow in the middle of the laundry treating chamber 1a cannot reach a higher air speed, thereby failing to form a high air pressure with a stronger penetrating capacity, failing to realize the effect of center penetrating drying.

If the ratio of the sum S3 of the flow areas of the plurality of outer air inlet holes 1122 to the projected area S of the tub bottom 11 along the axial direction thereof is too large, the area of the inner air inlet region 11a is too small, and when the air flow only enters the laundry treating chamber 1a from the inner air inlet region 11a, the wind resistance of the inner air inlet region 11a is too large, the air inlet amount of the laundry treating chamber 1a is reduced, and the overheat protection of the compressor is caused.

The application can ensure that the air inlet of the clothes treatment cavity 1a is more uniform when the air flow enters the clothes treatment cavity 1a from the inner air inlet area 11a and the outer air inlet area 11b by limiting the ratio of the sum of the flow areas of the plurality of outer air inlet holes 1122 to the projection area of the barrel bottom 11 along the axial direction of the barrel bottom, thereby improving the drying effect, and ensuring that the air flow in the middle part of the clothes treatment cavity 1a can reach higher wind speed when the air flow only enters the clothes treatment cavity 1a from the inner air inlet area 11a, thereby forming high wind pressure with stronger penetrating capacity, realizing the effect of center penetrating and drying, ensuring the air inlet of the clothes treatment cavity 1a and ensuring that the compressor can normally work.

Therefore, according to the laundry treating tub assembly 100 of the dryer 1 of the embodiment of the present utility model, by limiting the ratio of the sum of the flow areas of the plurality of outer air inlet holes 1122 to the projected area of the tub bottom 11 in the axial direction thereof to the above-mentioned range, it is possible to balance the air inlet uniformity and the air speed of the dryer 1 in different drying modes, and to secure the drying effect of the dryer 1 in different drying modes.

The total flow area S3 of the plurality of outer air inlets 1122 is 120cm ²-200cm². Specifically, the sum S3 of the flow areas of the plurality of outer air inlets 1122 may be 120cm ²、130cm²、150cm²、170cm²、190cm²、200cm² or the like.

Thus, by limiting the sum of the flow areas of the plurality of outer air inlet holes 1122 to the above-described range, it is possible to ensure uniform air inlet to the laundry treating chamber 1a when the air flow enters the laundry treating chamber 1a from the inner air inlet area 11a and the outer air inlet area 11b, and to ensure the drying effect.

As shown in fig. 1 and 2, in some embodiments, the plurality of outer air inlet holes 1122 are divided into a plurality of outer air inlet hole groups 1123, the plurality of outer air inlet hole groups 1123 are arranged at intervals in the circumferential direction of the inner air inlet region 11a, and the plurality of outer air inlet holes 1122 in each outer air inlet hole group 1123 are arranged at intervals in a preset direction. By the arrangement, a plurality of outer air inlets 1122 can be orderly arranged, and when air flows from the inner air inlet area 11a and the outer air inlet area 11b into the clothes treatment cavity 1a, the uniformity of the air inlet of the clothes treatment cavity 1a in the circumferential direction can be further ensured, and the drying effect is further improved.

It will be appreciated that the plurality of outer air inlet holes 1122 are arranged more densely near the middle of the tub bottom 11 and more sparsely far from the middle of the tub bottom 11, and thus, in order to ensure uniformity of the air inlet of the laundry treating chamber 1a in the radial direction thereof, the outer air inlet holes 1122 near the middle of the tub bottom 11 may be set smaller and the outer air inlet holes 1122 far from the middle of the tub bottom 11 may be set larger. Of course, the shape and size of the plurality of outer air inlet 1122 in each outer air inlet group 1123 may be set to be the same.

In some embodiments, the preset direction is a radial direction of the tub bottom 11, that is, the plurality of outer air inlet hole groups 1123 are arranged at intervals in the circumferential direction of the inner air inlet region 11a, and the plurality of outer air inlet holes 1122 in each outer air inlet hole group 1123 are arranged at intervals in the radial direction of the tub bottom 11.

As shown in fig. 1 and 2, in some embodiments, the preset direction is to extend in a clockwise direction from inside to outside in a radial direction of the tub bottom 11.

For example, the preset direction may be an extending direction of a straight line obliquely disposed with respect to a radial direction of the tub bottom 11 as viewed from the opening 1b of the laundry treating chamber 1a, so that the plurality of outer air inlet holes 1122 in each outer air inlet hole group 1123 are sequentially staggered from inside to outside.

For another example, the predetermined direction may be an extending direction of an arc line, as seen from the opening 1b of the laundry treating chamber 1a, and the plurality of outer air inlet holes 1122 in each outer air inlet hole group 1123 are spaced apart along the extending direction of the arc line. More specifically, the arc extends in a clockwise direction from inside to outside in a radial direction of the tub bottom 11.

Thus, by arranging the plurality of outer air inlet holes 1122 in each outer air inlet hole group 1123 at intervals in the radial direction of the tub bottom 11 from inside to outside, when the air flow enters the laundry treating chamber 1a from the inner air inlet region 11a and the outer air inlet region 11b, on the one hand, on the basis of the unchanged size of the tub bottom 11, the number of the outer air inlet holes 1122 in each outer air inlet hole group 1123 can be increased, thereby increasing the sum of the flow areas of the plurality of outer air inlet holes 1122 in each outer air inlet hole 1122, improving the air inlet quantity of the laundry treating chamber 1a, and on the other hand, the air inlet of each outer air inlet hole group 1123 can be formed in a clockwise rotating air inlet form, which is not only beneficial to break up laundry, but also makes the air inlet more uniform, and further improves the drying effect.

In some embodiments, the flow area of the single outer air inlet 1122 is smaller than the flow area of the single inner air inlet 1112, so that compared with the outer air inlet 11b, the air resistance of the inner air inlet 11a can be reduced, the air inlet quantity of the clothes treating cavity 1a at the inner air inlet 11a can be improved, overheat protection of the compressor of the clothes dryer 1 can be avoided, and the compressor can be ensured to work normally.

As shown in fig. 3 to 5, in some embodiments, the tub bottom 11 includes an air guide portion extending from outside to inside toward a direction approaching the open mouth 1b of the laundry treating chamber 1a, and the outer air inlet area 11b is provided at the air guide portion.

When the clothes dryer 1 works, air flow in the clothes treatment cavity 1a, which is close to the outer periphery of the barrel bottom 11, can flow to the middle part of the clothes treatment cavity 1a and to the opening 1b of the clothes treatment cavity 1a under the guidance of the air guide part, so that the air flow is gathered, the air flow in the middle part of the clothes treatment cavity 1a forms high air pressure with strong penetrating capacity, and the effect of center penetrating and drying is realized. The air guiding part can change the air flow direction entering the clothes treating cavity 1a from the outer air inlet area 11b, so that part of the air flow is diffused to the direction close to the barrel body 12 and the opening 1b of the clothes treating cavity 1a, and the air inlet is more uniform.

According to the clothes treatment barrel assembly 100 of the clothes dryer 1 provided by the embodiment of the utility model, the air guide part is arranged at the barrel bottom 11, and the air flow in the clothes treatment cavity 1a can be gathered towards the middle part of the clothes treatment cavity 1a under the guidance of the air guide part, so that the air flow in the middle part of the clothes treatment cavity 1a forms high air pressure with strong penetrating capacity, the effect of central penetrating drying is realized, the air guide part can also change the air inlet direction of the outer air inlet area 11b, the air inlet uniformity in the clothes treatment cavity 1a is ensured, the drying effect is further improved, and the use experience of a user is facilitated to be improved.

In some embodiments, the inner surface of the wind guide forms a concave cambered surface. So set up, on the one hand the air current in the clothing processing chamber 1a flows towards the direction that is close to the middle part of clothing processing chamber 1a and the open mouth 1b of clothing processing chamber 1a under the guide of wind-guiding portion, improves the wind speed of the air current of clothing processing chamber 1a to form the high wind pressure that has stronger penetrability, do benefit to the effect that realizes center penetration stoving, on the other hand can change the air inlet direction of outer air inlet district 11b, make the air current spread to the direction that is close to ladle body 12, thereby can be full of in the clothing processing chamber 1a, make the air inlet in the clothing processing chamber 1a more even, further improve the stoving effect of dryer 1.

The air guiding part can form an annular structure, the air guiding part surrounds the outer side of the inner air inlet area 11a, the guiding part can guide the air flow in the inner circumference of the clothes treatment cavity 1a, so that the air flow in the clothes treatment cavity 1a can gather towards the middle part of the clothes treatment cavity 1a, the air flow in the middle part of the clothes treatment cavity 1a forms high air pressure with strong penetrating capacity, the effect of central penetrating drying is achieved, and the use experience of a user is further improved.

As shown in fig. 3 to 5, in some embodiments, the tub bottom 11 includes a middle part 111 and a first annular part 112, the inner air inlet region 11a is provided at the middle part 111, the first annular part 112 surrounds the outer side of the middle part 111, the inner ring of the first annular part 112 is connected to the middle part 111, and the outer air inlet region 11b is provided at the first annular part 112.

Wherein the first annular portion 112 extends in a direction from outside to inside in a radial direction thereof toward the opening 1b of the laundry treating chamber 1 a. The first annular portion 112 may form the guide portion described above.

Thus, by providing the tub bottom 11 to include the intermediate portion 111 and the first annular portion 112, since the first annular portion 112 extends in a direction from the outside to the inside in the radial direction thereof toward the opening 1b near the laundry treating chamber 1a, the air flow in the laundry treating chamber 1a can be concentrated toward the middle portion of the laundry treating chamber 1a and the opening 1b under the guide of the first annular portion 112, so that the air flow in the middle portion of the laundry treating chamber 1a forms a high air pressure having a strong penetration ability, and the center penetration drying effect is achieved.

In addition, the first annular portion 112 can also change the direction of the air flow entering the clothes treating cavity 1a from the outer air inlet area 11b, so that the air flow is partially diffused to the direction close to the tub 12 and to the opening 1b of the clothes treating cavity 1a, and the air inlet is more uniform, thereby being beneficial to improving the use experience of users.

As shown in fig. 3, the first annular portion 112 has a dimension h in the axial direction of the laundry treating tub 10 of 10mm to 20mm. For example, the dimension h of the first annular portion 112 in the axial direction of the laundry treating tub 10 may be 10mm, 12mm, 15mm, 18mm, 20mm, etc. By limiting the size of the first annular portion 112 in the axial direction of the laundry treating tub 10 to the above-described range, the guiding effect of the first annular portion 112 can be improved, and the drying effect of the dryer 1 can be further improved.

As shown in fig. 3 and 5, in some embodiments, the tub bottom 11 further includes a second annular part 113, the second annular part 113 surrounds the outside of the first annular part 112, and an inner ring of the second annular part 113 is connected with an outer ring of the first annular part 112, and an outer ring of the second annular part 113 is connected with the tub 12.

Wherein, the second annular portion 113 forms a closed structure, i.e. the second annular portion 113 is a non-porous structure, and the second annular portion 113 extends along a radial direction from inside to outside towards a direction close to the opening 1b of the laundry treating cavity 1a, so that the tub body 12 is in arc transition connection with the tub bottom 11, and an air flow dead angle inside the laundry treating tub 10 is avoided, thereby affecting a drying effect.

Therefore, by arranging the tub bottom 11 to comprise the middle part 111, the first annular part 112 and the second annular part 113, the tub bottom 11 is designed in a partition manner, two relatively closed air passing cavities can be defined by the middle part 111 and the first annular part 112 and the baffle 3 of the clothes dryer 1, the air tightness of the air passing cavities is ensured, and the clothes dryer 1 can realize switching of different clothes drying modes.

In addition, the second ring-shaped portion 113 is positioned at the outer side of the air passing chamber and has a non-porous structure, so that not only the air tightness of the laundry treating tub 10 can be ensured, but also the structural strength of the tub bottom 11 of the laundry treating tub 10 can be ensured.

As shown in fig. 3, a side of the second annular portion 113 facing away from the opening 1b of the laundry treating chamber 1a is provided with a fitting protrusion 1131, and the fitting protrusion 1131 forms an annular protrusion surrounding the first annular portion 112.

The clothes treating tub assembly 100 is applied to the clothes dryer 1, a first air passing cavity and a second air passing cavity are defined between the tub bottom 11 of the clothes treating tub 10 and the baffle 3, the first air passing cavity can be communicated with the first air duct and the inner air inlet area 11a, the second air passing cavity can be communicated with the second air duct and the outer air inlet area 11b, and the matching protrusions 1131 on the second annular portion 113 can be in sealing and rotating fit with the baffle 3, so that the sealing performance of the second air passing cavity can be ensured.

As shown in fig. 6 to 16, in some embodiments, the laundry treating tub assembly 100 further includes a wind scooper 14, the wind scooper 14 is provided at the inner side of the tub bottom 11, and the wind scooper 14 covers the inner air intake region 11a.

Wherein, a ventilation cavity is defined between the air guiding cover 14 and the barrel bottom 11, the air guiding cover 14 is provided with a plurality of ventilation holes which are arranged at intervals, and the ventilation holes are communicated with the ventilation cavity and the clothes treatment cavity 1a.

When the clothes dryer 1 works, air flow can enter the ventilation cavity from the inner air inlet area 11a, then enters the clothes treatment cavity 1a from the plurality of ventilation holes, and air flow flowing out of the ventilation holes can flow into the clothes treatment cavity 1a under the guidance of the air guide cover 14, so that the air flow is gathered, the air flow in the clothes treatment cavity 1a forms high air pressure with strong penetrating capacity, and the effect of center penetrating drying is realized. And the air guide cover 14 can change the flowing direction of the air flow, so that the air inlet of the clothes treatment cavity 1a is more uniform, and the drying effect is further improved.

Therefore, according to the air guide cover 14 of the clothes dryer 1 provided by the embodiment of the utility model, the air inlet form in the clothes treatment cavity 1a can be improved by arranging the air guide cover 14 at the inner air inlet area 11a, so that the drying effect is improved, and the use experience of a user is improved.

In some embodiments, the sum of the flow areas of the plurality of ventilation holes is S4, the projected area of the tub bottom 11 in the axial direction thereof is S, and the ratio of S4 to S is 0.3% -3%. For example, the ratio of the sum S4 of the flow areas of the plurality of ventilation holes to the projected area S of the tub bottom 11 in the axial direction thereof may be 0.3%, 0.5%, 1%, 1.5%, 2%, 2.5%, 3%, etc.

If the ratio of the sum S4 of the flow areas of the plurality of ventilation holes to the projection area S of the tub bottom 11 along the axial direction thereof is too large, the area of the outer air inlet area 11b is too small, when the air flow enters the laundry treatment cavity 1a from the inner air inlet area 11a and the outer air inlet area 11b, the problem of uneven air inlet easily occurs, the drying effect is uneven, when the air flow only enters the laundry treatment cavity 1a from the inner air inlet area 11a, the air quantity generated by the wind wheel of the clothes dryer 1 is limited, the air flow in the middle of the laundry treatment cavity 1a cannot reach a higher air speed, so that a high air pressure with a stronger penetrating capacity cannot be formed, and the effect of center penetrating and drying cannot be realized.

If the sum of the flow areas of the plurality of ventilation holes is S4, the ratio of the projection area of the tub bottom 11 along the axial direction thereof to S is too small, which results in the reduction of the number of the ventilation holes and the sum of the flow areas of the plurality of ventilation holes, when the air flow enters the laundry treating chamber 1a only from the inner air inlet area 11a, the wind resistance of the inner air inlet area 11a is too large, which reduces the air intake of the laundry treating chamber 1a, and causes overheat protection of the compressor.

According to the application, the ratio of the sum of the flow areas of the plurality of ventilation holes to the projection area of the barrel bottom 11 along the axial direction of the barrel bottom is limited in the range, so that on one hand, when air flows enter the clothes treatment cavity 1a from the inner air inlet area 11a and the outer air inlet area 11b, the air inlet of the clothes treatment cavity 1a is more uniform, the drying effect is improved, and on the other hand, when the air flows only enter the clothes treatment cavity 1a from the inner air inlet area 11a, the air flow in the middle of the clothes treatment cavity 1a can reach higher air speed, thereby forming high air pressure with stronger penetrating capacity, realizing the effect of center penetrating and drying, ensuring the air inlet quantity of the clothes treatment cavity 1a, and ensuring that the compressor can normally work.

Wherein, the total S4 of the flow areas of the plurality of ventilation holes is 10cm ²-80cm². Specifically, the sum S4 of the flow areas of the plurality of ventilation holes may be 10cm ²、20cm²、40cm²、60cm²、70cm²、80cm² or the like.

Therefore, by limiting the flow areas of the plurality of ventilation holes to the above range, it can be ensured that when the air flow only enters the clothes treatment cavity 1a from the inner air inlet area 11a, the air flow in the middle of the clothes treatment cavity 1a can reach a higher air speed, so that a high air pressure with a stronger penetrating capacity is formed, the effect of central penetrating drying is realized, the air inlet amount of the clothes treatment cavity 1a can be ensured, and the compressor can work normally.

As shown in fig. 3-4 and 8-9, in some embodiments, the middle part of the tub bottom 11 has a cavity 1113, the cavity 1113 is opened towards the opening 1b of the laundry treating chamber 1a, a plurality of inner air inlets 1112 are provided at the bottom wall of the cavity 1113, and the air guiding cover 14 is partially provided in the cavity 1113.

Therefore, through arranging the concave cavity 1113 in the middle of the barrel bottom 11, on one hand, the air guide cover 14 can be pre-positioned, the air guide cover 14 is conveniently and fixedly connected with the barrel bottom 11, and on the other hand, the air guide cover 14 is partially arranged in the concave cavity 1113, so that the edge of the air guide cover 14 is hidden in the concave cavity 1113, namely, the barrel bottom 11 wraps the edge of the air guide cover 14, and clothes are prevented from being clamped at the edge of the air guide cover 14 or at the joint of the air guide cover 14 and the barrel bottom 11.

Wherein, the laundry treating tub 10 may be made of a sheet metal part, and the wind scooper 14 may be made of plastic.

As shown in fig. 13 and 14, in some examples, a plurality of connection posts 1426 are provided at a side of the air guide cover 14 facing the tub bottom 11 of the laundry treating tub 10, the connection posts 1426 define a first connection hole 1426a, the tub bottom 11 of the laundry treating tub 10 is provided with a plurality of second connection holes 1116, and the air guide cover 14 and the tub bottom 11 of the laundry treating tub 10 are connected together by a plurality of fasteners, each of which is penetrated through the first connection hole 1426a and the second connection hole 1116.

In order to improve the structural strength of the connection post 1426, the circumferential wall of the connection post 1426 is provided with a plurality of connection ribs 1427, the plurality of connection ribs 1427 are arranged at intervals in the circumferential direction of the connection post 1426, and each connection rib 1427 is further connected with the tub bottom 11 of the laundry treatment tub 10.

As shown in fig. 14, a positioning portion 1428 is provided on a side of the air guide cover 14 facing the bottom 11 of the laundry treating tub 10, a positioning hole 1117 is provided on the bottom 11 of the laundry treating tub 10, and the positioning portion 1428 is in plug-in fit with the positioning hole 1117, so that pre-installation of the air guide cover 14 on the bottom 11 of the laundry treating tub 10 can be realized.

The positioning holes 1117 and the positioning portions 1428 may include a plurality of positioning portions 1428, and the plurality of positioning portions 1428 and the plurality of positioning holes 1117 are matched in a one-to-one correspondence. Through setting up a plurality of location portions 1428, on the one hand can improve the stability of preinstallation, improve the installation reliability and the installation stability of wind scooper 14, on the other hand when installing wind scooper 14, need not 360 degrees rotatory wind scooper 14, only need rotatory certain angle just can peg graft the cooperation with a plurality of location portions 1428 and a plurality of locating hole 1117, do benefit to the installation effectiveness that improves wind scooper 14.

As shown in fig. 5 and 14, in some specific examples, the positioning hole 1117 and the second connection hole 1116 are disposed adjacent to each other, the positioning portion 1428 and the connection post 1426 are disposed adjacent to each other, and the positioning portion 1428 and the connection post 1426 are connected together by at least one connection rib 1427, thereby further improving the structural strength of the positioning portion 1428 and the connection post 1426.

As shown in fig. 3-5 and 8-9, in some embodiments, the bottom wall of the cavity 1113 is provided with a boss 1114, the boss 1114 protrudes toward the opening 1b of the laundry treating chamber 1a, and the boss 1114 is fixedly connected to the air guide cover 14. By providing the boss 1114 on the bottom wall of the cavity 1113, the structural strength of the bottom 11 at the cavity 1113 can be improved, and the deformation of the bottom 11 at the cavity 1113 can be avoided.

Specifically, as shown in fig. 5, the boss 1114 has a plurality of protruding portions arranged at intervals in the circumferential direction, an inner air inlet 1112 is disposed between two adjacent protruding portions, and a protruding portion is disposed between two adjacent inner air inlets 1112, that is, the plurality of protruding portions and the plurality of inner air inlets 1112 are alternately arranged in the circumferential direction of a circumference, so that the structural strength of the tub bottom 11 at the cavity 1113 can be further improved, and the structural deformation of the tub bottom 11 at the cavity 1113 is avoided.

To further enhance the structural strength of the tub bottom 11 at the recess 1113, the boss 1114 is provided at a central position with a protrusion 1115 protruding toward the opening 1b near the laundry treating chamber 1 a.

As shown in fig. 5 and 6, in some embodiments, the air guiding cover 14 covers the inner air inlet region 11a, the air guiding cover 14 has an outer air vent region 1421, the outer air vent region 1421 may be formed in a ring shape extending along a circumferential direction, the outer air vent region 1421 is provided with a plurality of outer air vents 1422, and the outer air vents 1422 communicate with the air vent chamber and the laundry treating chamber 1a.

When the clothes dryer 1 works, air flow can enter the ventilation cavity from the inner air inlet area 11a, then enters the clothes treatment cavity 1a from the plurality of outer ventilation holes 1422, and air flow flowing out of the outer ventilation holes 1422 can flow into the clothes treatment cavity 1a under the guidance of the air guide cover 14, so that the air flow is gathered, the air flow in the clothes treatment cavity 1a forms high air pressure with strong penetrating capacity, and the effect of center penetrating drying is realized. And the air guide cover 14 can change the flowing direction of the air flow, so that the air inlet of the clothes treatment cavity 1a is more uniform, and the drying effect is further improved.

Therefore, by providing the air guide cover 14 at the inner air inlet area 11a, the air inlet form in the clothes treatment cavity 1a can be improved, the drying effect can be improved, and the use experience of a user can be improved.

In some embodiments, the plurality of outer vent holes 1422 are divided into a plurality of outer vent hole groups 1423, the plurality of outer vent hole groups 1423 being spaced apart in a circumferential direction of a circumference, the plurality of outer vent holes 1422 in each outer vent hole group 1423 being spaced apart in a radial direction of a circumference.

So set up, can make a plurality of outer ventilation holes 1422 realize orderly arranging, in the air current gets into the ventilation intracavity from interior air inlet district 11a, can get into clothing processing chamber 1a from a plurality of outer ventilation holes 1422 on the outer ventilation district 1421, further guarantee clothing processing chamber 1a at its circumference ascending air inlet homogeneity, further improve the stoving effect.

As shown in fig. 6 and 7, in some embodiments, the plurality of outer air inlet holes 1122 are divided into a plurality of outer air inlet hole groups 1123, the plurality of outer air inlet hole groups 1123 are arranged at intervals in the circumferential direction of the inner air inlet region 11a, the plurality of outer air inlet holes 1122 in each outer air inlet hole group 1123 are arranged at intervals along the preset direction, and the plurality of outer air vent groups 1423 and the plurality of outer air inlet hole groups 1123 are equal in number and correspond in position one to one.

Therefore, the number and the positions of the outer vent hole groups 1423 and the outer air inlet hole groups 1123 are equal and correspond to each other one by one, on one hand, the consistency of arrangement of the outer vent hole groups 1423 and the outer air inlet hole groups 1123 can be guaranteed, visual perception is improved, on the other hand, the vent hole groups are equivalent to the continuation structures of the outer air inlet hole groups 1123, the uniformity of air inlet of the clothes treatment cavity 1a in the circumferential direction can be further guaranteed, and the drying effect is further improved.

It will be appreciated that the plurality of outer vent holes 1422 are arranged more densely near the middle of the tub bottom 11 and more sparsely far from the middle of the tub bottom 11, and thus, in order to ensure uniformity of air intake of the laundry treating chamber 1a in the radial direction thereof, in some embodiments, in each outer vent hole group 1423, the flow area of the plurality of outer vent holes 1422 is sequentially increased from inside to outside, i.e., the size of the outer vent holes 1422 near the middle of the tub bottom 11 is set smaller, and the size of the outer vent holes 1422 far from the middle of the tub bottom 11 is set larger.

Of course, the shape and size of the plurality of outer vent holes 1422 in each outer vent group 1423 may also be set to be the same; or the flow area of the plurality of outer vent holes 1422 in each outer vent group 1423 increases sequentially from outside to inside.

As shown in fig. 14, in some embodiments, a side of the wind scooper 14 facing the tub bottom 11 is provided with a plurality of reinforcing ribs 1429, the plurality of reinforcing ribs 1429 and the plurality of outer vent groups 1423 are alternately arranged at intervals in the circumferential direction, each reinforcing rib 1429 extending in the radial direction of the circumference. By providing the plurality of reinforcing ribs 1429 on the side of the wind scooper 14 facing the tub bottom 11, the structural strength and rigidity of the wind scooper 14 can be improved, thereby improving the deformation resistance of the wind scooper 14 and being beneficial to improving the use reliability of the wind scooper 14.

As shown in fig. 1 and 2, in some embodiments, the outer air intake region 11b is further provided with a plurality of ribs 1124, the ribs 1124 being provided to protrude toward the inside of the laundry treatment chamber 1a, the plurality of ribs 1124 being arranged at intervals in the circumferential direction of the inner air intake region 11a, each rib 1124 extending spirally in the circumferential direction of the inner air intake region 11 a.

According to the clothes treating barrel assembly 100 of the clothes dryer 1 provided by the embodiment of the utility model, the plurality of convex ribs 1124 are arranged on the outer air inlet area 11b, so that the plurality of convex ribs 1124 can guide the airflow entering the clothes treating cavity 1a from the outer air inlet area 11b to flow, the airflows entering the clothes treating cavity 1a can be gathered together to form high wind pressure with strong penetrating capacity, the effect of central penetrating drying is realized, the problem that the clothes are wrapped and dried in the center and are not completely dried is solved, and the clothes in the clothes treating cavity 1a can be stirred and scattered, so that the clothes are prevented from being entangled, and the drying effect and the drying efficiency are further improved.

In some embodiments, a recess 1125 is formed between two adjacent ribs 1124, the plurality of outer air inlet holes 1122 are divided into a plurality of outer air inlet hole groups 1123, and the plurality of outer air inlet hole groups 1123 are arranged at intervals in the circumferential direction of the inner air inlet region 11a and are disposed in the plurality of recesses 1125 in one-to-one correspondence.

Thus, by disposing the plurality of outer air inlet hole groups 1123 in the plurality of concave portions 1125, not only the damage of the laundry along the hole edges of the outer air inlet holes 1122 can be avoided, but also the laundry is in contact with the plurality of ribs 1124, so that a passage through which the air flow passes is formed between the laundry and the concave portions 1125, the outer air inlet holes 1122 are prevented from being blocked by the laundry, the air flow can enter the laundry treatment chamber 1a from the outer air inlet holes 1122, the air inlet quantity of the laundry treatment chamber 1a is ensured, and the drying effect and the drying efficiency are further improved.

As shown in fig. 2 and 7, the plurality of outer air inlet holes 1122 in each outer air inlet hole group 1123 are arranged at intervals in the extending direction of the recess 1125, so that the air inlet to the laundry treating chamber 1a is more uniform, and the drying effect is further improved.

In some embodiments, the air guiding cover 14 further has an inner ventilation zone 1411, the inner ventilation zone 1411 is located at the middle of the air guiding cover 14, the outer ventilation zone 1421 surrounds the outer side of the inner ventilation zone 1411, the inner ventilation zone 1411 is provided with a plurality of inner ventilation holes 1412, and the inner ventilation holes 1412 are communicated with the ventilation cavity and the laundry treatment cavity 1a.

When the air flow only enters the clothes treating cavity 1a from the inner air inlet area 11a, the air flow firstly enters the ventilation cavity through the inner air inlet area 11a, and then at least a part of the air flow can enter the clothes treating cavity 1a through a plurality of inner ventilation holes 1412 on the inner ventilation area 1411, so that the air flow in the middle part of the clothes treating cavity 1a can reach a higher wind speed, high wind pressure with stronger penetrating capacity is formed, and the effect of center penetrating drying is realized.

As shown in fig. 6-7 and 10-11, in some embodiments, the air guiding cover 14 has an outer ventilation area 1421 and an inner ventilation area 1411, the inner ventilation area 1411 is located in the middle of the air guiding cover 14, the outer ventilation area 1421 surrounds the outer side of the inner ventilation area 1411, the plurality of ventilation holes include an outer ventilation hole 1422 and an inner ventilation hole 1412, the plurality of outer ventilation holes 1422 are provided in the outer ventilation area 1421, the plurality of inner ventilation holes 1412 are provided in the inner ventilation area 1411, and the inner ventilation hole 1412 and the outer ventilation hole 1422 are all communicated with the ventilation cavity and the laundry treating cavity 1a.

Therefore, by setting the air guide cover 14 to the structure, on one hand, when air flows enter the clothes treatment cavity 1a from the inner air inlet area 11a and the outer air inlet area 11b, the air inlet of the clothes treatment cavity 1a is more uniform, the drying effect is improved, and on the other hand, when the air flows only enter the clothes treatment cavity 1a from the inner air inlet area 11a, the air flow in the middle of the clothes treatment cavity 1a can reach higher air speed, so that high air pressure with stronger penetrating capacity is formed, the effect of central penetrating drying is realized, the air inlet quantity of the clothes treatment cavity 1a can be ensured, and the normal operation of the compressor can be ensured.

In some embodiments, the plurality of inner ventilation holes 1412 are uniformly and alternately arranged in the inner ventilation area 1411, and air intake uniformity of the laundry treating chamber 1a may be ensured.

In some embodiments, the inner ventilation holes 1412 form polygonal holes. For example, the inner ventilation holes 1412 may form triangular holes, quadrangular holes, hexagonal holes, or the like. By the arrangement, on the basis of ensuring the air inlet quantity, a part of sound waves can be blocked, and noise reduction is realized.

Of course, the inner ventilation holes 1412 may be round holes, oval holes, or the like, and may be specifically selected according to practical situations.

In some embodiments, the plurality of outer vent holes 1422 are divided into a plurality of outer vent hole groups 1423, the plurality of outer vent hole groups 1423 being circumferentially spaced apart in the inner vent zone 1411, the plurality of outer vent holes 1422 in each outer vent hole group 1423 being radially spaced apart in the inner vent zone 1411.

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 may be 0.1, 0.5, 1, 3, 5, 8, etc.

If the ratio of the sum of the flow areas of the inner ventilation holes 1412 to the sum of the flow areas of the outer ventilation holes 1422 is too large, the flow areas of the inner ventilation holes 1412 are too large, and the sum of the flow areas of the outer ventilation holes 1422 is too small, so that when the air flows from the inner air inlet area 11a and the outer air inlet area 11b into the laundry treating chamber 1a, the problem of uneven air inlet easily occurs, resulting in uneven drying effect.

If the ratio of the sum of the flow areas of the inner ventilation holes 1412 to the sum of the flow areas of the outer ventilation holes 1422 is too small, the sum of the flow areas of the inner ventilation holes 1412 is too small, and the sum of the flow areas of the outer ventilation holes 1422 is too large, so that when the air flow only enters the clothes treating cavity 1a from the inner air inlet area 11a, the air flow generated by the wind wheel of the clothes dryer 1 is limited, the air flow in the middle of the clothes treating cavity 1a cannot reach a higher air speed, and thus a high air pressure with a stronger penetrating capacity cannot be formed, and the effect of center penetrating and drying cannot be achieved.

Therefore, according to the laundry treating tub assembly 100 of the dryer 1 of the embodiment of the present utility model, by limiting 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 to the above range, it is possible to balance the intake air uniformity and the air speed of the dryer 1 in different drying modes, and to secure the drying effect of the dryer 1 in different drying modes.

In some embodiments, the sum S51 of the flow areas of the plurality of inner vent holes 1412 is 5cm ²-40cm² and the sum S52 of the flow areas of the plurality of outer vent holes 1422 is 5cm ²-40cm².

Specifically, the sum S51 of the flow areas of the inner ventilation holes 1412 and the sum S52 of the flow areas of the outer ventilation holes 1422 may be equal, which may ensure that the air intake uniformity of the laundry treating chamber 1a is ensured when the air flows from the inner air intake area 11a and the outer air intake area 11b into the laundry treating chamber 1a, and may ensure that the air flow in the middle of the laundry treating chamber 1a may reach a higher air speed when the air flows only from the inner air intake area 11a into the laundry treating chamber 1a, thereby forming a high air pressure with a stronger penetration capacity, realizing a center penetration drying effect, and may ensure the air intake of the laundry treating chamber 1a, ensuring that the compressor may normally operate.

Of course, the sum S51 of the flow areas of the plurality of inner ventilation holes 1412 and the sum S52 of the flow areas of the plurality of outer ventilation holes 1422 may be set to be unequal, and may be specifically selected according to the actual situation.

As shown in fig. 10 to 16, in some embodiments, the air guide cover 14 of the clothes dryer 1 includes a middle cover part 141 and an annular cover part 142, the middle cover part 141 is provided with an inner ventilation zone 1411, the annular cover part 142 surrounds the outer side of the middle cover part 141, an inner ring of the annular cover part 142 is connected with the middle cover part 141, the annular cover part 142 is provided with an outer ventilation zone 1421, and the annular cover part 142 extends outwards along the axial direction of the middle cover part 141.

Wherein the inner ventilation zone 1411 is provided with a plurality of inner ventilation holes 1412 and the outer ventilation zone 1421 is provided with a plurality of outer ventilation holes 1422. That is, the middle cover 141 is provided with a plurality of inner ventilation holes 1412 spaced apart, and the annular cover 142 is provided with a plurality of outer ventilation holes 1422 spaced apart. From the inner intake zone 11a, a portion of the air flow enters the ventilation chamber 1a through the plurality of inner ventilation holes 1412 in the middle hood 141, and another portion of the air flow enters the laundry treating chamber 1a through the plurality of outer ventilation holes 1422 in the annular hood 142.

According to the clothes treating tub assembly 100 of the clothes dryer 1 of the embodiment of the utility model, by adopting the air guide cover 14, the air flows entering the clothes treating cavity 1a from the plurality of inner ventilation holes 1412 on the middle cover portion 141 can be gathered together to form high air pressure with strong penetrating capacity, the effect of central penetrating drying is realized, the problem that the clothes are wrapped and dried thoroughly is solved, and the air flows entering the clothes treating cavity 1a from the plurality of outer ventilation holes 1422 on the annular cover portion 142 can change the air inlet direction under the guidance of the annular cover portion 142, so that the air flows can be filled in the clothes treating cavity 1a, the air inlet in the clothes treating cavity 1a is more uniform, and the drying effect of the clothes dryer 1 is further improved.

In some embodiments, an inner ring of the annular cover part 142 is connected with the middle cover part 141, and an outer ring of the annular cover part 142 is connected with the tub bottom 11, and the annular cover part 142 extends from outside to inside in a direction approaching the opening 1b of the laundry treating chamber 1 a. The air flow entering the clothes treating cavity 1a from the plurality of outer vent holes 1422 on the annular cover part 142 can change the air inlet direction under the guidance of the annular cover part 142, so that the air flow can be filled in the clothes treating cavity 1a, the air inlet in the clothes treating cavity 1a is more uniform, and the drying effect of the clothes dryer 1 is further improved.

As shown in fig. 12, in some embodiments, the outer surface of the annular cap portion 142 forms a concave arcuate 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 direction approaching the opening 1b of the laundry treating chamber 1 a.

By the arrangement, on one hand, the air flow in the clothes treatment cavity 1a can flow towards the direction close to the opening 1b of the clothes treatment cavity 1a under the guidance of the annular cover part 142, the air speed of the air flow in the middle of the clothes treatment cavity 1a is improved, so that high air pressure with high penetrating capacity is formed, the effect of central penetrating drying is realized, on the other hand, the air inlet direction of the outer vent 1422 can be changed, the air flow can be filled in the clothes treatment cavity 1a, the air inlet in the clothes treatment cavity 1a is more uniform, and the drying effect of the clothes dryer 1 is further improved.

Wherein the middle cap portion 141 and the annular cap portion 142 are integrally formed. Through with well cover portion 141 and annular cover portion 142 integrated into one piece, not only can reduce part quantity, save the connection structure who is used for connecting well cover portion 141 and annular cover portion 142, the shaping is more convenient moreover, is favorable to improving the connection reliability of well cover portion 141 and annular cover portion 142, is favorable to improving production efficiency.

As shown in fig. 10-12 and 14-16, in some embodiments, the wind scooper 14 further includes a middle ornament 143, where the middle ornament 143 is disposed at a connection position between the middle housing portion 141 and the inner ring of the annular housing portion 142. The material of the middle ornament 143 may be different from the material of the middle cover 141 and the annular cover 142, and the color of the middle ornament 143 may be different from the color of the middle cover 141 and the annular cover 142.

Therefore, by arranging the middle ornament 143, on one hand, the overall visual perception of the laundry treatment tub assembly 100 is improved, and on the other hand, the connection position of the middle cover 141 and the annular cover 142 can be covered, for example, uneven structures such as burrs at the connection position can be covered, so that the outer surface of the middle cover 141 and the outer surface of the annular cover 142 are in transitional connection through the middle ornament 143, and the connection position of the middle cover 141 and the annular cover 142 is prevented from scratching the laundry.

As shown in fig. 14-16, in some embodiments, a plurality of fastening holes 1424 are arranged at a connection position between the middle cover 141 and the inner ring of the annular cover 142, a plurality of fastening buckles 1431 are arranged at a side of the middle ornament 143 facing the barrel bottom 11, and the fastening buckles 1431 are in a one-to-one fastening fit with the fastening holes 1424.

Wherein, the middle ornament 143 may form a closed ring structure, and a plurality of the buckles 1431 are arranged at intervals in the circumferential direction of the middle ornament 143. Of course, the middle ornament 143 may be provided in at least one open loop structure according to the state of the connection position of the inner ring of the middle cover 141 and the annular cover 142, and may be specifically selected according to practical situations.

In the application, the connecting position of the inner ring of the middle cover part 141 and the annular cover part 142 is connected with the middle ornament 143 in a clamping manner, and the connecting is carried out without using an operation tool, so that the operation is simpler, and the connecting efficiency is improved. And, can also realize the detachably joint with well gadget 143 with the hookup location of the inner circle of well cover portion 141 and annular cover portion 142 as required and link to each other to the convenient clearance prevents accumulation of filth, dust or bacterium, avoids causing secondary pollution to the clothing.

As shown in fig. 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 with the middle ornament 143, the other end of the fixing portion 1432 is provided with at least two elastic arms 1433 disposed opposite to each other, and a gap is provided between each elastic arm 1433 and the fixing portion 1432.

In the process of installing the middle ornament 143, the elastic arm 1433 can deform towards the direction close to the fixing portion 1432, and after the elastic arm 1433 passes through the clamping hole 1424, the elastic arm 1433 recovers deformation, so that the buckle 1431 can be prevented from being separated from the clamping hole 1424, and the installation reliability and stability of the middle ornament 143 are ensured.

As shown in fig. 14 and 16, in some embodiments, a limiting protrusion 1435 is disposed on one side of the buckle 1431, and a limiting hole 1425 is further disposed at a connection position between the middle cover portion 141 and the inner ring of the annular cover portion 142, where the limiting hole 1425 is communicated with the clamping hole 1424, and the limiting hole 1425 is in plug-in fit with the limiting protrusion 1435. By providing the limiting projection 1435 and the limiting hole 1425, the buckle 1431 can be limited, and the installation reliability and stability of the middle ornament 143 can be further ensured.

In an embodiment in which 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 at two adjacent sides of the fixing portion 1432.

A dryer 1 according to an embodiment of the present utility model will be described below with reference to the accompanying drawings.

The clothes dryer 1 according to the embodiment of the present utility model includes the laundry treating tub assembly 100 of the clothes dryer 1 according to the above-described embodiment. Since the laundry treating tub assembly 100 of the clothes dryer 1 according to the embodiment of the present utility model has the above-described technical effects, the clothes dryer 1 according to the embodiment of the present utility model also has the above-described technical effects, i.e., by adopting the laundry treating tub assembly 100 of the clothes dryer 1 described above, the uniformity of the intake air and the wind speed of the clothes dryer 1 in different drying modes can be balanced, and the drying effect of the clothes dryer 1 in different drying modes can be ensured.

In some embodiments, the dryer 1 further includes a baffle 3 and an air duct housing assembly 2, the tub bottom 11 is rotatably engaged with the baffle 3, the air duct housing assembly 2 is provided at a side of the baffle 3 facing away from the laundry treating tub 10, and a first air duct and a second air duct are defined between the air duct housing assembly 2 and the baffle 3, the dryer 1 has a first drying mode in which the inner air intake zone 11a communicates with the first air duct and the laundry treating chamber 1a, and a second drying mode in which the inner air intake zone 11a communicates with the first air duct and the laundry treating chamber 1a, and the outer air intake zone 11b communicates with the second air duct and the laundry treating chamber 1a.

Referring to fig. 18 to 21, an embodiment of the present application provides a clothes dryer including a cabinet, a circulation duct, an impeller, a laundry treating tub 1 (refer to fig. 22) disposed in the cabinet, a baffle 3 disposed at the rear of the laundry treating tub 1, and a duct housing assembly 2 according to any embodiment of the present application.

Referring to fig. 22, the laundry treating tub 1 has a laundry treating chamber 1a for placing laundry therein, and a front side of the laundry treating tub 1 is opened and defines a laundry putting opening. For example, referring to fig. 22, the laundry treating tub 1 includes a tub body 12 and a tub bottom 11, the tub bottom 11 covering a rear end of the tub body 12. The circulation duct communicates with the laundry treating chamber 1a to form an air flow circulation flow path, that is, an air flow circulates in the laundry treating chamber 1 a.

Referring to fig. 18 to 17, the duct case assembly 2 includes a duct case 21 and a duct switching mechanism provided on the duct case 21. The front side of the air duct shell 21 is open, the baffle plate 3 is arranged between the air duct shell 21 and the clothes treating barrel 1, the air duct shell 21 is covered on the baffle plate 3 of the box body and forms sealing fit with the baffle plate 3, so that the probability of outward air leakage of air flow from the fit position of the air duct shell 21 and the clothes treating barrel 1 is reduced.

Illustratively, a sealing member is attached to a surface of the air duct housing 21, which contacts the baffle 3, so that the sealing performance of the matching position of the air duct housing 21 and the baffle 3 is better. The specific material of the seal is not limited, and includes, for example, but is not limited to, felt.

The air duct case 21 has an air duct which is located on the circulation air duct and communicates with the laundry treating chamber 1a, that is, the air flow of the circulation air duct flows through the inside of the air duct case assembly 2. I.e., the duct housing 21, serves to guide the flow of the circulating air flow of the dryer.

The impeller is rotatably installed in the air duct, and the air duct case 21 is air-taken from the axial front side of the impeller, and air-taken in along the circumferential direction of the impeller, that is, the cooperation of the impeller and the air duct, approximately forms a centrifugal fan structure.

The dryer is provided with a condensing device for cooling and dehumidifying, a wind wheel and a heating element for heating dehumidified gas on the circulating air channel, wherein the wind wheel is used for enabling air flow in the circulating air channel to form directional flow.

Clothes drying process and principle of clothes dryer: the drying hot air flow enters the clothes treatment cavity 1a from the downstream of the circulating air duct, in the clothes treatment cavity 1a, the drying hot air flow flows through the surface of wet clothes to perform heat-moisture exchange with the wet clothes, moisture in the clothes is absorbed and changed into wet hot air flow, the wet hot air flow enters the upstream of the circulating air duct, a condensing device in the circulating air duct condenses and dehumidifies to form low-temperature drying air flow, the low-temperature drying air flow is heated by a heating element to form drying hot air flow, and the drying hot air flows through the air duct of the air duct shell 21 and then enters the clothes treatment cavity 1a again, so that the continuous and efficient drying of the clothes is realized.

Referring to fig. 18, 20 and 21, the air duct includes a first air duct 21b and a second air duct 21c. Wherein, the blocking arrangement means that the first air duct 21b and the second air duct 21c do not cross air, the air flow entering the first air duct 21b does not flow into the second air duct 21c, and the air flow entering the second air duct 21c does not enter the first air duct 21 b.

The air duct switching mechanism is disposed on the air duct case 21 and includes a driving mechanism 22, a first switching member 23' and a second switching member 23 ", the first switching member 23' is connected with the second switching member 23" through a connecting member 25 to form a linkage unit, and the driving mechanism 22 is directly or indirectly connected with the linkage unit, that is, the first switching member 23' and the second switching member 23 "move together.

The driving mechanism 22 is used for driving the linkage overall movement so that the air duct selectively opens or closes the second air duct 21c. In this way, the first switch piece 23', the second switch piece 23″ can be driven to move simultaneously by the single driving mechanism 22, so that the duct case 21 has different blowing states.

It should be noted that the selective opening or closing of the second air duct 21c means that the air duct housing 21 has at least two air supply states, i.e., a first air supply state and a second air supply state, and the air duct switching mechanism can enable the air duct housing 21 to switch between the two air supply states.

In the first air-blowing state, the air flow in the duct is blown out from the first duct 21b, and the second duct 21c has little air volume.

In the second air supply state, the air flow in the duct is sent out from the first duct 21b and the second duct 21 c.

As can be seen from the above, the air supply amount of the first air duct 21b in the first air supply state is larger than that in the second air supply state.

It will be appreciated that the first air duct 21b and the second air duct 21c supply air to the unused portions of the laundry treating tub 1, and thus, according to practical situations, supply air to different portions of the laundry treating tub 1 and adjust the air supply amounts of the different portions, so as to adjust the drying speed of the unused portions.

According to the air duct shell assembly 2 provided by the embodiment of the application, the air supply state of the air duct shell 21 is switched through the air duct switching mechanism, so that the selective air supply of different parts of the clothes treatment cavity 1a is realized, and the air supply quantity can be increased in a targeted manner for the areas where clothes are difficult to dry easily, so that the difference of the drying degrees among different parts is reduced, and the uniformity of the drying effect is improved. The single driving mechanism 22 drives the first switch piece 23' and the second switch piece 23″ to move simultaneously to enable the air duct shell 21 to have different air supply states, so that the number of the driving mechanisms 22 can be reduced, the cost can be reduced, only one driving mechanism 22 needs to be controlled, the control mode is simple, and the reliability of products is improved.

The specific structure of the driving mechanism 22 is not limited, and the driving mechanism 22 is an electric motor, for example.

In some embodiments, referring to fig. 22, the tub bottom 11 of the laundry treating tub 1 is provided with an inner air intake zone 11a and an outer air intake zone 11b. The inner air intake area 11a communicates with the first air duct 21b and the laundry treating chamber 1a, that is, the air sent from the first air duct 21b flows through the inner air intake area 11a into the laundry treating chamber 1a. The outer air inlet region 11b communicates the second air duct 21c with the laundry treating chamber 1a, that is, the air flow sent from the second air duct 21c enters the laundry treating chamber 1a through the outer air inlet region 11b.

The specific arrangement of the first air channel 21b and the second air channel 21c is not limited, and may be, for example, left-right arrangement, up-down arrangement, or the like.

For example, referring to fig. 18, 20 and 21, the second air duct 21c surrounds the first air duct 21b. Accordingly, referring to fig. 22, the outer intake zone 11b surrounds the inner intake zone 11 a. In the first air supply state of the air duct case 21, the laundry treating chamber 1a is supplied with air from the inner air intake area 11a, and almost no air is introduced into the laundry treating chamber 1a from the outer air intake area 11 b. In the second air supply state, the air duct case 21 is in the second air supply state, and the laundry treating chamber 1a is simultaneously supplied with air from the inner air inlet area 11a and the outer air inlet area 11 b.

For example, when the humidity of the laundry in the inner air intake area 11a corresponding to the laundry treatment chamber 1a is higher than that of the laundry in other parts, the air duct switching mechanism may be operated to send the air flow only from the first air duct 21b, and at this time, the air intake amount of the inner air intake area 11a is higher, so that the rapid drying of the laundry in the inner air intake area 11a can be accelerated. When the difference of the humidity of the clothes at each position in the clothes treatment cavity 1a is not large, the air duct switching mechanism can be operated, so that the air flow is simultaneously sent out from the first air duct 21b and the second air duct 21 c; when the clothes are attached to the inner wall of the clothes treatment cavity 1a, air flows into the inner air inlet area 11a through the first air duct 21b and into the outer air inlet area 11b through the second air duct 21c, the air flow of the inner air inlet area 11a meets the air flow of the outer air inlet area 11b, the air flow of the outer air inlet area 11b is extruded by the air flow of the inner air inlet area 11a so as to deflect towards the inner wall of the clothes treatment cavity 1a, and therefore the contact efficiency of the clothes attached to the inner wall of the clothes treatment cavity 1a and the air flow in the clothes treatment cavity 1a is improved, and drying of the clothes attached to the inner wall of the clothes treatment cavity 1a is facilitated.

The air duct switching mechanism comprises a transmission member 24, and the power output shaft of the driving mechanism 22 drives each switch member 23', 23″ to swing through the transmission member 24. The transmission piece 24 can realize transmission with larger center distance, and has long transmission distance, large travel, convenient processing and manufacturing and low cost.

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, so that the transmission is smoother.

In some embodiments, the air duct housing 21 includes a housing 211, the housing 211 includes a back plate 2111 and a side wall 2112 disposed along an edge of the back plate 2111, and the driving mechanism 22, the first switch member 23', and the second switch member 23″ are all located on the same side of the back plate 2111, so that the size of the air duct housing 21 in the front-rear direction is not increased, and the overall structure of the air duct housing 21 is more compact.

In some embodiments, referring to fig. 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 does not interfere with the movement of the first switch member 23', the second switch member 23" in the air duct housing 21, the driving mechanism 22 and the first switch member 23', the second switch member 23 "do not collide to affect the air supply to the air duct housing 21, and the driving mechanism 22 is advantageously arranged close to the side wall 2112, so that the overall structure of the air duct housing 21 is more compact.

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

In some embodiments, the first switch member 23' is rotatably coupled to the air duct housing 21 by a first rotation shaft 23a, and the second switch member 23″ is rotatably coupled to the air duct housing 21 by a second rotation shaft 23 b. The first switch member 23' and the second switch member 23″ can rotate about the first rotation shaft 23a and the second rotation shaft 23b, respectively, and the first rotation shaft 23a and the second rotation shaft 23b have simple structures, are easy to produce, are convenient to assemble, and do not occupy an assembly space in the duct case 21.

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 movement of the first switch member 23', the second switch member 23″ and the driving mechanism 22 is smoother.

In some embodiments, the air duct housing 21 includes a partition portion, where the partition portion partitions the area surrounded by the side wall 2112 on the surface of the back plate 2111 into at least an air duct and an electric control component placement area 21a, where the electric control component placement area 21a and the air duct are separately disposed, and the driving mechanism 22 is disposed in the electric control component placement area 21a.

It should be noted that the separation is not completely isolated, and it is understood that the air flow in the air duct does not flow through the electrical control placement area 21a.

The space in the air duct shell 21 is at least divided into an air duct and an electric control part placement area 21a by the dividing part, and the driving mechanism 22 is arranged in the electric control part placement area 21a, in the embodiment, the driving mechanism 22 is not arranged on the back side of the back plate 2111, so that the driving mechanism 22 does not increase the size of the air duct shell 21 along the front-back direction, and the overall structure of the air duct shell 21 is more compact; the air duct shell 21 plays a role in protecting the driving mechanism 22, so that other external objects are prevented from rubbing the driving mechanism 22, and the driving mechanism 22 is not required to be additionally provided with a protective cover for protection; meanwhile, the die investment cost can be saved, and the assembly process is reduced, so that the assembly is simpler.

In some embodiments, portions of the partitions project toward the air chute to form the volute tongue 213. The volute tongue 213 is of arcuate streamline design to facilitate cutting and to direct airflow. The manner in which the drive mechanism 22 drives the linked overall motion is not limited.

In some embodiments, referring to fig. 18, 20 and 21, the power output shaft 22a of the driving mechanism 22 is connected to the first switch member 23' by a transmission member 24, and the transmission member 24 passes through the escape opening 2113. The driving mechanism 22 drives the first switch piece 23 'to move through the transmission piece 24, and then drives the connecting piece 25 and the second switch piece 23 "to move, so that the first switch piece 23' and the second switch piece 23" are driven by a single driving mechanism 22 to move simultaneously, the avoidance port 2113 can provide a movement space for the transmission piece 24, the transmission piece 24 is prevented from moving and clamping stagnation, the transmission distance of the transmission piece 24 is long, the travel is large, the processing and the manufacturing are convenient, and the cost is low.

In some embodiments, the air duct housing 21 includes spacer ribs 212.

The spacer rib 212 is disposed in the air duct, and specifically, the rear end of the spacer rib 212 and the back plate 2111 are fixedly connected together, for example, may be connected together by welding or the like, or may be integrally formed.

Referring to fig. 18 and 20, the circumferential inner surface of the spacing rib 212 defines a first air channel 21b, and the first end 212a and the second end 212b of the spacing rib are spaced apart and define an inlet of the first air channel 21b. The first end 212a and the second end 212b of the spacer rib are both adjacent to the impeller, and air flow from the impeller enters the first air duct 21b from the inlet of the first air duct 21b.

The circumferential outer surface of the spacer rib 212 and the inner surface of the side wall 2112 define a second air channel 21c, with the first end 212a and/or the second end 212b of the spacer rib 212 being spaced from the corresponding side wall 2112 to form an inlet to the second air channel 21 c.

In this embodiment, the spacer ribs 212 are arranged in such a manner that the second air duct 21c substantially surrounds the first air duct 21b, and the structure is simple. The front ends of the ribs 212 are substantially flush with the side walls 2112, and when the duct case 21 is covered on the baffle 3, the ribs 212 also abut against the baffle 3, so that no air is blown between the first duct 21b and the second duct 21 c.

In some embodiments, the spacer ribs 212 are curved in profile to reduce the flow resistance of the airflow.

It should be noted that there may be only one inlet of the second air duct 21c, for example, in some embodiments, the first end 212a of the spacer rib 212 is spaced from the side wall 2112 to form an inlet, and the second end 212b of the spacer rib 212 is connected to the side wall 2112; or the second end 212b of the spacer rib 212 is spaced from the side wall 2112 to form an inlet, and the first end of the spacer rib 212 is connected to the side wall 2112.

The number of inlets of the second air duct 21c may be two. For example, referring to fig. 18 and 20, a first end 212a of the spacer rib is spaced from the side wall 2112 by a first inlet 21c' forming a second air channel 21c, and a second end 212b of the spacer rib 212 is spaced from the side wall 2112 by a second inlet 21c″ forming a second air channel 21 c. I.e. in this embodiment the number of inlets of the second wind tunnel 21c is two. The air inlet mode can enable air flow in the air channel to enter the second air channel 21c from the first inlet 21c' and the second inlet 21c ", so that the air flow can conveniently and quickly enter the second air channel 21c, and the uniformity of air distribution of the second air channel 21c is improved.

The first switch member 23 'is used to open or close the first inlet 21c', and the second switch member 23 "is used to open or close the second inlet 21 c".

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

For example, when the first switch member 23 'opens the first inlet 21c' and the second switch member 23 "opens the second inlet 21 c", the air flow simultaneously enters the first air duct 21b and the second air duct 21c, and the air duct case assembly 2 simultaneously supplies air to the first sub-air supply area 21b and the second air duct 21c.

As an example, referring to fig. 18 and 20, one end of the first switch member 23 'is detachably abutted against the first end 212a of the spacer rib 212, one end of the second switch member 23 "is detachably abutted against the second end 212b of the spacer 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, the first switch member 23 'and the second switch member 23 "swing reversely during the driving of the driving mechanism 22 to move integrally, so that the first switch member 23' and the second switch member 23" do not contact during the movement, thereby influencing the switching of the air supply state of the air duct housing assembly 2; in addition, the first inlet 21c 'and the second inlet 21c″ can be simultaneously opened or closed, and the first switch member 23' and the second switch member 23″ are abutted against the spacing rib 212 to play a limiting role, and the air flow is not influenced to enter the first air duct 21b.

When the duct case 21 is in the second air supply state, referring to fig. 18 and 20, the first and second switching members 23 'and 23″ open the first and second inlets 21c' and 21c″ of the second duct 21c, and the first and second switching members 23 'and 23″ are disposed substantially along the direction in which the air flow flows to reduce resistance of the first and second switching members 23' and 23″ to the air flow.

When the duct case 21 needs to be switched 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 fig. 20, drives the transmission member 24 to rotate a same angle in the counterclockwise direction of fig. 20, the second switch member 23″ connected to the transmission member 24 also rotates a same angle in the counterclockwise direction of fig. 20, the first switch member 23 'rotates in the opposite direction to the second switch member 23″ in such a manner that the first switch member 23' rotates a same angle in the clockwise direction of fig. 20, such that one end of the first switch member 23 'abuts against the side wall 2112, the other end abuts against the first end 212a of the spacer rib 212, the first inlet 21c' of the second duct 21c is closed, one end of the second switch member 23″ abuts against the side wall 2112, the other end abuts against the second end 212b of the spacer rib 212, the second inlet 21c″ of the second duct 21c is closed, and the air flow is guided to the inlet of the first duct 21 b. The state after the switch is shown in fig. 21.

In this embodiment, the first switch member 23' and the second switch member 23″ occupy a smaller space, have a smaller flow resistance to the air flow, and can switch the air supply state only by swinging a smaller angle.

The manner in which the opposite direction of oscillation of the first switch member 23' and the second switch member 23″ is achieved is not limited.

In some embodiments, the connection position between the connecting piece 25 and the first switch piece 23 'is a first position 25a, the connection position between the connecting piece and the second switch piece 23″ is a second position 25b, the first position 25a is located at a side of the swing center of the first switch piece 23' away from the spacer rib 212, and the second position 25b is located at a side of the swing center of the second switch piece 23″ near the spacer rib 212. Thus, when the driving mechanism 22 drives the linkage integral movement, the first switch piece 23' and the second switch piece 23″ can realize synchronous reverse swing, and the scratch generated in the movement process is avoided, so that the switching of the air supply state is influenced.

In some embodiments, the connection position of the transmission member 24 and the first switch member 23 'is a 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 linkage integral movement, the transmission member 24 and the connection member 25 will not affect each other, and stability of the linkage integral movement is increased.

The shape of the connection member 25 is not limited. For example, in some embodiments, referring to fig. 18, the connecting member 25 is linear.

In other embodiments, referring to fig. 23, the connecting member 25 has an arc shape, the driving position 24a is located at a side of the swing center of the first switch member 23' near the spacing rib 212, and the arc opening of the connecting member 25 is disposed in a direction away from the spacing rib 212. The connecting piece 25 is arc-shaped, reduces the resistance when driving the linkage integral motion, and the synchronous motion of the first switch piece 23' and the second switch piece 23″ is convenient for, and the arc-shaped opening of the connecting piece 25 avoids the arrangement with the driving position 24a, avoids the motion interference with the transmission piece 24.

The connecting member 25 includes a first arc-shaped section 251 and a second arc-shaped section 252, the first arc-shaped section 251 is connected with the second switch member 23 ", the second arc-shaped section 252 is connected with the first switch member 23', the bending direction of the first arc-shaped section 251 is opposite to the bending direction of the second arc-shaped section 252, the arc-shaped opening of the first arc-shaped section 251 is arranged towards the direction of the spacing rib 212, and the opening of the second arc-shaped section 252 is arranged towards the direction away from the spacing rib 212. Thus, the first arc-shaped section 251 does not interfere with the movement of the second switching member 23 ", the second arc-shaped section 252 does not interfere with the movement of the first switching member 23', and the design of the first arc-shaped section 251 and the second arc-shaped section 252 facilitates the transmission of force and more smoothly realizes the switching of the air supply state.

It will be appreciated that in some embodiments, the default air supply state of the air duct case 21 at the start-up of the dryer may be any one of the first air supply state and the second air supply state. That is, each time the dryer is turned on, the duct case 21 is restored to the default air supply state.

In another embodiment, the air duct case 21 is set to the initial air supply state at the end of the previous drying process of the dryer.

Illustratively, the dryer includes a first drying mode and a second drying mode.

First clothes drying mode: the air duct switching mechanism closes the inlet of the second air duct 21c, the air duct shell 21 is in a first air supply state, and the clothes treatment cavity 1a is supplied with air from the inner air inlet area 11 a;

Second clothes drying mode: the air duct switching mechanism opens the inlet of the second air duct 21c, and the air duct case 21 is in the second air supply state, and the laundry treating chamber 1a is supplied with air from the inner air intake area 11a and the outer air intake area 11 b.

When the humidity difference of the clothes at each part in the clothes treatment cavity 1a is not large, the air duct switching mechanism moves to enable the air duct shell 21 to be in the second air supply state, the air duct shell 21 relatively uniformly outputs air, and the clothes treatment cavity 1a is supplied with air from the inner air inlet area 11a and the outer air inlet area 11b, so that each part has almost air quantity, and the clothes are uniformly dried.

When the humidity of the clothes at the inner air inlet area 11a corresponding to the clothes treatment cavity 1a is higher than that of the clothes at other parts, the air duct switching mechanism moves to enable the air duct shell 21 to be in the first air supply state, at this time, the air duct shell 21 only outputs air from the first air duct 21b, the clothes treatment cavity 1a only supplies air from the inner air inlet area 11a, at this time, the air quantity corresponding to the inner air inlet area 11a is much higher than that in the second clothes drying mode, and the drying speed of the clothes at the inner air inlet area 11a can be accelerated.

It should be noted that, in the same clothes drying procedure, there may be only one clothes drying mode all the time, for example, the clothes are not obviously knotted, wrapped in the clothes treating tub 1, and the clothes are dried uniformly, so that the clothes dryer always operates in the first clothes drying mode. For another example, during the first half of the time, the first clothes drying mode is operated, and during the second half of the time, the second clothes drying mode is operated; or in the first half period, the first clothes drying mode and the second clothes drying mode are switched to run reciprocally until the drying program is finished.

Other constructions and operations of the dryer 1 according to the embodiment of the present utility model are known to those skilled in the art, and will not be described in detail herein.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.

Claims

1. A laundry treating tub assembly of a clothes dryer, comprising:

The clothes treatment barrel comprises a barrel body and a barrel bottom, wherein two axial ends of the barrel body are open, one end of the barrel body is closed by the barrel bottom to limit a clothes treatment cavity with the barrel body, the barrel bottom is provided with an inner air inlet area and an outer air inlet area, the inner air inlet area is positioned in the middle of the barrel bottom, the outer air inlet area surrounds the outer side of the inner air inlet area, and a plurality of outer air inlet holes are formed in the outer air inlet area;

The outer air inlet area is further provided with a plurality of convex ribs protruding towards the inside of the clothes treatment cavity, the convex ribs are circumferentially arranged at intervals in the inner air inlet area, and each convex rib extends in a spiral mode in the circumferential direction of the inner air inlet area.

2. The laundry treatment tub assembly of the dryer according to claim 1, wherein a recess is formed between adjacent two of the ribs, the plurality of outer air inlet holes are divided into a plurality of outer air inlet hole groups, and the plurality of outer air inlet hole groups are arranged at intervals in a circumferential direction of the inner air inlet area and are disposed in the plurality of recesses in one-to-one correspondence.

3. The laundry treatment tub assembly of the dryer of claim 2, wherein a plurality of the outer air intake holes of each of the outer air intake hole groups are arranged at intervals in an extending direction of the recess.

4. The laundry treatment drum assembly of the clothes dryer of claim 2, further comprising:

The air guide cover is arranged on the inner side of the barrel bottom and a ventilation cavity is defined between the air guide cover and the barrel bottom;

The air guide cover covers the inner air inlet area and is provided with an outer ventilation area, the outer ventilation area is provided with a plurality of outer ventilation holes, and the outer ventilation holes are communicated with the ventilation cavity and the clothes treatment cavity.

5. The laundry treating tub assembly of the dryer of claim 4, wherein a plurality of said outer vent holes are divided into a plurality of outer vent hole groups, the plurality of outer vent hole groups being spaced apart in a circumferential direction of a circumference, the plurality of outer vent holes in each of the outer vent hole groups being spaced apart in a radial direction of the circumference.

6. The laundry treating tub assembly of the dryer of claim 5, wherein a plurality of outer vent groups and a plurality of said outer inlet vent groups are equal in number and in one-to-one correspondence.

7. The laundry treating tub assembly of the dryer of claim 5, wherein in each of the outer vent groups, a flow area of a plurality of the outer vents increases sequentially from inside to outside.

8. The laundry treatment drum assembly of the dryer of claim 4, characterized in that the air guiding hood further has an inner ventilation zone, which is located in the middle of the air guiding hood and the outer ventilation zone surrounds the outer side of the inner ventilation zone;

Wherein, interior ventilation district is equipped with a plurality of internal ventilation holes, internal ventilation hole intercommunication ventilation chamber with the clothing processing chamber.

9. The laundry treatment drum assembly of the clothes dryer of claim 8, wherein the air guide cover comprises:

The inner ventilation area is positioned on the middle cover part;

The annular cover part surrounds the outside of well cover part, the inner circle of annular cover part with well cover part is connected and the outer lane with the barrel head is connected, annular cover part is from outside to interior towards being close to the direction of the uncovered opening of clothing processing chamber, outer ventilation zone is located annular cover part.

10. The laundry treatment tub assembly of the clothes dryer of claim 9, wherein an outer surface of the annular cover portion forms a concave arcuate surface extending from outside to inside in a direction proximate to the open mouth of the laundry treatment chamber.

11. The laundry treatment drum assembly of the clothes dryer of claim 9, wherein the air guide housing further comprises:

The middle ornament is arranged at the connection position of the middle cover part and the inner ring of the annular cover part.

12. The clothes treating tub assembly of the clothes dryer of claim 11, wherein a plurality of spaced clamping holes are formed at a connection position of the middle cover portion and the inner ring of the annular cover portion, a plurality of buckles are formed at a side of the middle ornament facing the tub bottom, and the plurality of buckles are in one-to-one corresponding clamping fit with the plurality of clamping holes.

13. The clothes treating tub assembly of the clothes dryer of claim 12, wherein one side of the buckle is provided with a limiting protrusion, a limiting hole is further formed at a connection position of the middle cover portion and the inner ring of the annular cover portion, the limiting hole is communicated with the clamping hole, and the limiting hole is in plug-in fit with the limiting protrusion.

14. Laundry dryer, characterized in that it comprises a laundry treatment drum assembly according to any one of claims 1-13.

15. The clothes dryer of claim 14, further comprising:

the barrel bottom is rotatably matched with the baffle;

The air duct shell assembly is arranged on one side of the baffle plate, which is opposite to the clothes treatment barrel, and a first air duct and a second air duct are defined between the air duct shell assembly and the baffle plate;

The clothes dryer is provided with a first ventilation mode and a second ventilation mode, the inner air inlet area is communicated with the first air duct and the clothes treatment cavity in the first ventilation mode, the inner air inlet area is communicated with the first air duct and the clothes treatment cavity in the second ventilation mode, and the outer air inlet area is communicated with the second air duct and the clothes treatment cavity.