Laundry treating apparatus

Abstract

The utility model discloses clothes processing equipment which comprises an air duct shell assembly, a clothes processing drum and a switching device, the air duct shell assembly defines a first ventilation cavity and a second ventilation cavity which are communicated with each other, and one side of the air duct shell assembly is provided with a first through opening; a clothes processing cavity is defined by the clothes processing barrel, one end of the clothes processing barrel is provided with a clothes taking and placing opening, the other end of the clothes processing barrel is provided with a first extending part, the first extending part stretches into the first ventilation cavity from the first through opening, the first extending part is provided with a first air inlet part and a second air inlet part, and the first air inlet part surrounds the second air inlet part; the first air inlet part is used for controlling the speed of air flowing through. According to the clothes processing equipment, the switching device is arranged, the direction of the airflow flowing from the second ventilation cavity to the first ventilation cavity can be changed through the switching piece, and therefore the air speed of the first air inlet part can be controlled, and different clothes drying requirements are met.

Description

Technical Field

[0001] The utility model relates to the technical field of clothing treatment, and particularly relates to a clothing treatment device. Background Art

[0002] When the clothing treatment device in the related art is working, the air in the air duct can enter the clothing treatment cavity from the bottom of the clothing treatment cylinder through the ventilation cavity. However, due to the single air inlet mode, it cannot meet various drying requirements, and the user experience is poor. Summary of the Utility Model

[0003] The utility model aims to at least solve one of the technical problems existing in the prior art. For this purpose, an object of the utility model is to provide a clothing treatment device, which can meet different drying requirements and improve the user experience.

[0004] The clothing treatment device according to an embodiment of the utility model includes: an air duct housing assembly, which defines a first ventilation cavity and a second ventilation cavity that are communicated, and one side of the air duct housing assembly has a first through port communicated with the first ventilation cavity; a clothing treatment cylinder, which defines a clothing treatment cavity, one end has a clothing access opening, and the other end has a first extension portion, the first extension portion extends into the first ventilation cavity from the first through port, the first extension portion is provided with a first air inlet portion and a second air inlet portion, and the first air inlet portion surrounds the second air inlet portion; a switching device, which is arranged on the air duct housing assembly and includes a movable switching member for controlling the air speed flowing through the first air inlet portion.

[0005] For the clothing treatment device according to an embodiment of the utility model, by arranging the switching device, the air flow direction flowing from the second ventilation cavity to the first ventilation cavity can be changed by using the switching member, so that the air speed of the first air inlet portion can be controlled to meet different drying requirements.

[0006] According to some embodiments of the utility model, the first extension portion includes an end wall and a peripheral wall, the end wall is arranged opposite to the clothing access opening, the peripheral wall surrounds the end wall, the first air inlet portion is arranged on the peripheral wall, and the second air inlet portion is arranged on the end wall.

[0007] In some embodiments, the peripheral wall gradually extends outward in the direction close to the clothing access opening.

[0008] According to other embodiments of the utility model, the first extension portion includes a first air inlet wall, the first air inlet wall gradually extends in the direction close to the clothing access opening from inside to outside along its radial direction, and both the first air inlet portion and the second air inlet portion are arranged on the first air inlet wall.

[0009] According to some embodiments of the present utility model, the air duct housing assembly further defines an air outlet cavity, and the air outlet cavity is communicated between the first ventilation cavity and the second ventilation cavity; wherein, the switching member is movably disposed in the air outlet cavity for controlling the air velocity flowing through the first air inlet portion by changing the flow area of the air outlet cavity.

[0010] In some embodiments, the switching member is used to control the on-off of a part of the air outlet cavity. In a plane perpendicular to the clothing treatment cylinder, the ratio of the flow width of the air outlet cavity when the switching member is in the off state to the flow width of the air outlet cavity when the switching member is in the on state is greater than 1 / 10.

[0011] According to some other embodiments of the present utility model, the air duct housing assembly includes a volute, and the volute is adapted to define the second ventilation cavity. The switching member is disposed opposite to the first air inlet portion and is located downstream of the volute tongue of the volute.

[0012] In some embodiments, the volute includes a first side wall and a second side wall. The first side wall is disposed opposite to the volute tongue and the second side wall is disposed adjacent to the volute tongue; wherein, the switching member is movably disposed in the middle of the first side wall and the second side wall and is spaced apart from the first side wall and the second side wall; or, one end of the switching member is close to one of the first side wall and the second side wall and the other end is spaced from the other of the first side wall and the second side wall.

[0013] According to some embodiments of the present utility model, the first air inlet portion includes a plurality of first air inlet holes, and the plurality of first air inlet holes are circumferentially spaced apart on the first extension portion, and / or, the flow area of the first air inlet holes gradually expands along the air flow direction; and / or, the number of the first air inlet portions is one, or, the number of the first air inlet portions is multiple and the multiple first air inlet portions are axially arranged on the first extension portion.

[0014] According to some embodiments of the present utility model, the number of the second air inlet portions is multiple, and the multiple second air inlet portions are circumferentially spaced apart on a circumference. Each second air inlet portion includes a plurality of second air inlet holes spirally arranged in the radial direction of the circumference.

[0015] In some embodiments, the first extension portion includes an end wall and a peripheral wall. The end wall is disposed opposite to the clothing access opening, the peripheral wall surrounds the end wall, the first air inlet portion is disposed on the peripheral wall, and the second air inlet portion is disposed on the end wall.

[0016] In some specific embodiments, the end wall includes a first wall body, and the first wall body extends from the outside to the inside in a direction close to the clothing access opening, and the second air inlet portion is disposed on the first wall body.

[0017] In some examples, the end wall further includes a second wall body, and the first wall body is located on the outer periphery of the second wall body and connects the second wall body and the peripheral wall.

[0018] In some embodiments, the first extension portion is provided with a ventilation opening, and the laundry treatment cylinder further includes: a wind guide cover, which is arranged inside the first extension portion and defines an air passage cavity between the wind guide cover and the first extension portion. The wind guide cover is provided with a plurality of third outer air inlet portions circumferentially spaced apart on a circumference. The third outer air inlet portions communicate the air passage cavity and the laundry treatment cavity, and a plurality of the second air inlet portions are located on the outer periphery of the wind guide cover.

[0019] In some specific examples, each of the third outer air inlet portions includes a plurality of third outer air inlet holes radially spaced apart along the circumference; and / or, the number of the plurality of third outer air inlet portions is equal to the number of the plurality of second air inlet portions and their positions correspond one by one.

[0020] According to some embodiments of the present invention, the air duct housing assembly further includes: a support plate, which defines the first ventilation cavity. The support plate is provided with a first through port, a second through port, and a third through port. The first through port and the first ventilation cavity are oppositely arranged in the thickness direction of the support plate. The third through port is arranged on the cavity wall of the first ventilation cavity and communicates the inside and outside of the first ventilation cavity. A volute is arranged on the support plate and covers the second through port and the third through port. The volute and the support plate define the second ventilation cavity. The second ventilation cavity communicates the second through port and the third through port. The projection of the volute tongue of the volute on the support plate is located between the first through port and the second through port.

[0021] Additional aspects and advantages of the present invention will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present invention. Description of the Drawings

[0022] The above and / or additional aspects and advantages of the present invention will become apparent and be readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0023] Figure 1 is a schematic structural diagram of a laundry treatment device according to some embodiments of the present invention;

[0024] Figure 2 is Figure 1 an exploded view of the structure shown in

[0025] Figure 3 is Figure 1 a front view of the structure shown in

[0026] Figure 4 is Figure 3 a side view of the structure shown in

[0027] Figure 5 along Figure 4 a sectional view taken along line A-A in

[0028] Figure 6 is Figure 1 a schematic structural view of the volute and the switching device shown in , where the switching device is in the off state;

[0029] Figure 7 is Figure 1 a schematic structural view of the volute and the switching device shown in , where the switching device is in the on state;

[0030] Figure 8 is Figure 7 a side view of the volute shown in ;

[0031] Figure 9 is Figure 1 a comparison diagram of the airflow streamline when the switching device is in the off state and the on state shown in ;

[0032] Figure 10 a schematic structural view of the lid of the laundry treatment device according to some embodiments of the present utility model from one perspective;

[0033] Figure 11 is

[0034] Figure 12 a schematic structural view of the lid of the laundry treatment device according to some embodiments of the present utility model from another perspective; Figure 11 a front view of the lid of the laundry treatment device shown in ;

[0035] Figure 13 along Figure 12 a sectional view taken along line B-B in ;

[0036] Figure 14 a front view of the lid of the laundry treatment device according to some other embodiments of the present utility model;

[0037] Figure 15 is Figure 14 a side view of the lid shown in .

[0038] Reference numerals:

[0039] laundry treatment device 1,

[0040] Air duct housing assembly 2, first ventilation chamber 201, first through port 2011, second ventilation chamber 202, second through port 2021, air passing chamber 203, first region 203a, second region 203b, third through port 204, volute 21, volute tongue 211, first side wall 2121, second side wall 2122, support plate 22

[0041] Clothing treatment cylinder 3, clothing access opening 301, second air inlet part 302, second air inlet hole 3021, first air inlet part 303, first air inlet hole 3031, cylinder body 31, cylinder cover 32, first extension part 321, end wall 3211, first wall body 32111, second wall body 32112, ventilation opening 32113, peripheral wall 3212, abutting projection 32121, first air inlet wall 3213, second air inlet wall 3214, recess 32140, second extension part 322, air guiding cover 33, air passing chamber 3301, third external air inlet part 3302, third external air inlet hole 33021, third internal air inlet part 3303, third internal air inlet hole 33031, middle cover part 331, annular cover part 332

[0042] Switching device 4, switching member 41, mounting shaft 411, driving member 42, fixing seat 43, through hole 44, air wheel 5 Detailed implementation manners

[0043] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation of the present invention.

[0044] Reference is made below to Figures 1 - 15 Describe a clothing treatment device 1 according to an embodiment of the present invention. The clothing treatment device 1 here can be a clothes dryer or a washing and drying integrated machine.

[0045] As Figures 1 - 4 shown, the clothing treatment device 1 according to an embodiment of the present invention includes an air duct housing assembly 2 and a clothing treatment cylinder 3. The air duct housing assembly 2 defines a first ventilation chamber 201 and a second ventilation chamber 202. The first ventilation chamber 201 and the second ventilation chamber 202 are communicated. One side of the air duct housing assembly 2 has a first through port 2011, and the first through port 2011 is communicated with the first ventilation chamber 201.

[0046] The laundry treatment drum 3 defines a laundry treatment cavity. One end of the laundry treatment drum 3 has a laundry access opening 301 and the other end has a first extension portion 321. The first extension portion 321 extends into the first ventilation cavity 201 from the first through opening 2011, and the first extension portion 321 defines a part of the laundry treatment cavity. Among them, the first extension portion 321 is provided with a first air inlet portion 303 and a second air inlet portion 302. The first air inlet portion 303 surrounds the second air inlet portion 302, and both the first air inlet portion 303 and the second air inlet portion 302 communicate with the first ventilation cavity 201 and the laundry treatment cavity.

[0047] By providing the first extension portion 321, without changing the external dimensions of the laundry treatment device 1, the volume of the laundry treatment cavity can be increased, thereby increasing the maximum drying capacity of the laundry treatment device 1. Without changing the axial dimension of the laundry treatment drum 3, the external dimension of the laundry treatment device 1 in the axial direction of the laundry treatment drum 3 can be reduced, which is conducive to realizing the structural miniaturization design of the laundry treatment device 1.

[0048] When the laundry treatment device 1 is working, the laundry treatment drum 3 rotates, and the air wheel 5 provided in the second ventilation cavity 202 also rotates. Under the action of the air wheel 5, the air in the air duct (not shown in the figure) enters the first ventilation cavity 201 through the second ventilation cavity 202. The air entering the first ventilation cavity 201 can enter the laundry treatment cavity from the first air inlet portion 303 and the second air inlet portion 302 to dry the laundry, and then be discharged from the laundry treatment cavity to the air duct, and so on.

[0049] Since when the laundry treatment drum 3 rotates, under the action of centrifugal force, the laundry is easily attached to the inner wall of the laundry treatment drum 3. By arranging the first air inlet portion 303 to surround the second air inlet portion 302, the air entering the laundry treatment cavity from the first air inlet portion 303 can directly contact the laundry attached to the inner wall of the laundry treatment drum 3, so as to directly dry this part of the laundry, reduce the probability that some areas of the laundry cannot be dried, improve the drying effect of the laundry treatment device 1, and improve the user experience.

[0050] Such as Figure 4 and Figure 5 As shown, the laundry treatment device 1 further includes a switching device 4. The switching device 4 is provided in the air duct housing assembly 2. The switching device 4 includes a movable switching member 41 for controlling the air speed flowing through the first air inlet portion 303. Among them, the switching member 41 can rotate relative to the air duct housing assembly 2 or move relative to the air duct housing assembly 2. By changing the attitude of the switching member 41 in the air duct housing assembly 2, the air speed flowing through the first air inlet portion 303 can be adjusted.

[0051] According to the clothing treatment device 1 of the embodiment of the present utility model, by providing a switching device 4, the air flow direction flowing from the second ventilation chamber 202 to the first ventilation chamber 201 can be changed by using the switching member 41, so that the wind speed of the first air inlet part 303 can be controlled to meet different drying requirements.

[0052] As Figures 1 - 5 shown, according to some embodiments of the present utility model, the first extension part 321 includes an end wall 3211 and a peripheral wall 3212. The end wall 3211 is disposed opposite to the clothing access opening 301, the peripheral wall 3212 surrounds the end wall 3211, the first air inlet part 303 is disposed on the peripheral wall 3212, and the second air inlet part 302 is disposed on the end wall 3211, so that the first air inlet part 303 surrounds the second air inlet part 302.

[0053] When the clothing treatment device 1 works, the air flow in the second ventilation chamber 202 flows through the first ventilation chamber 201 and enters the clothing treatment chamber from the first air inlet part 303 and the second air inlet part 302 respectively. Specifically, the air flow can directly impact the peripheral wall 3212 and flow along the tangential direction of the peripheral wall 3212 to the gap between the air duct housing assembly 2 and the peripheral wall 3212, and then can enter the clothing treatment chamber through the first air inlet part 303, or can flow to the gap between the end wall 3211 and the air duct housing assembly 2 and the end wall 3211, and then can enter the clothing treatment chamber through the second air inlet part 302.

[0054] Therefore, in the above technical solution, by arranging the first air inlet part 303 on the peripheral wall 3212 and arranging the second air inlet part 302 on the end wall 3211, the air flow can enter the clothing treatment chamber from different directions, which is convenient for using the switching member 41 to change the air flow direction flowing from the second ventilation chamber 202 to the first ventilation chamber 201, so that the wind speed of the first air inlet part 303 can be controlled to meet different drying requirements.

[0055] As Figures 10 - 13 shown, in some embodiments, the peripheral wall 3212 gradually extends outwards along the direction close to the clothing access opening 301. On the one hand, no matter the air flow flows along the axial direction of the first extension part 321 or along the radial direction of the first extension part 321, the air flow can enter the clothing treatment chamber through the first air inlet part 303. On the other hand, the wind speed of the air flow flowing through the first air inlet part 303 can be increased, so that the air flow can flow along the inner wall of the clothing treatment cylinder 3 faster, so as to be able to dry the clothes attached to the inner wall of the clothing treatment cylinder 3.

[0056] Wherein, the included angle between the peripheral wall 3212 and the central axis of the clothing treatment cylinder 3 can be 20°-70°. For example, the included angle between the peripheral wall 3212 and the central axis of the clothing treatment cylinder 3 can be 30°, 40°, 45°, 50°, 60°, etc.

[0057] AsFigures 14 - 15 As shown, according to some other embodiments of the present utility model, the first extension portion 321 includes a first air inlet wall 3213, and the first air inlet wall 3213 extends gradually from inside to outside along its radial direction towards the direction close to the clothing access opening 301.

[0058] For example, the contour line of the first air inlet wall 3213 can form an arc, or the contour line of the first air inlet wall 3213 can form an inclined line inclined with respect to the central axis of the clothing treatment cylinder 3, or a part of the contour line of the first air inlet wall 3213 can form an arc and the other part can form an inclined line inclined with respect to the central axis of the clothing treatment cylinder 3.

[0059] Wherein, both the first air inlet portion 303 and the second air inlet portion 302 are provided on the first air inlet wall 3213. Since the first air inlet portion 303 surrounds the second air inlet portion 302, based on the structure of the first air inlet wall 3213, the first air inlet portion 303 is arranged close to the outer peripheral edge of the first air inlet wall 3213, and the second air inlet portion 302 is arranged close to the middle region of the first air inlet wall 3213.

[0060] When the clothing treatment device 1 works, the air flow in the second ventilation cavity 202 flows through the first ventilation cavity 201 and enters the clothing treatment cavity from the first air inlet portion 303 and the second air inlet portion 302 respectively. Specifically, the air flow can directly impact the first air inlet wall 3213, flow along the tangential direction of the first air inlet wall 3213 to the gap between the air duct housing assembly 2 and the first air inlet wall 3213, and then can enter the clothing treatment cavity through the first air inlet portion 303 or can enter the clothing treatment cavity through the second air inlet portion 302.

[0061] Therefore, in the above technical solution, by setting the first air inlet wall 3213 as the above structure, the air flow can enter the clothing treatment cavity from different directions, which is convenient for using the switching member 41 to change the air flow direction flowing from the second ventilation cavity 202 to the first ventilation cavity 201, so that the wind speed of the first air inlet portion 303 can be controlled to meet different drying requirements.

[0062] As Figure 5 shown, according to some embodiments of the present utility model, the air duct housing assembly 2 further defines an air outlet cavity 203, and the air outlet cavity 203 communicates between the first ventilation cavity 201 and the second ventilation cavity 202. The switching member 41 is movably arranged in the air outlet cavity 203, and the switching member 41 is used to control the wind speed of the first air inlet portion 303 by changing the flow area of the air outlet cavity 203.

[0063] For example, the laundry treatment device 1 has a first air inlet mode and a second air inlet mode. In the first air inlet mode, the switching member 41 is in an off state, so that the flow area of the air passage chamber 203 reaches the minimum, and the air flow speed can be increased. In the second air inlet mode, the switching member 41 is in a conducting state, so that the flow area of the air passage chamber 203 reaches the maximum, and the air volume can be increased.

[0064] Among them, the switching between the first air inlet mode and the second air inlet mode can be selected according to the weight or humidity of the clothes in the laundry drum 3, or according to the drying time in the drying program, or according to the type of clothes in the laundry drum 3, etc.

[0065] Taking the selection according to the weight or humidity of the clothes in the laundry drum 3 as an example, when the weight of the clothes in the laundry drum 3 is small or the humidity is low, the clothes will stick to the inner wall of the laundry drum 3 under the action of centrifugal force.

[0066] If the laundry treatment device 1 operates in the second air inlet mode, at this time the switching member 41 is in a conducting state, the flow area of the air passage chamber 203 reaches the maximum, and the air in the second ventilation chamber 202 can enter the laundry treatment chamber from the first air inlet part 303 and the second air inlet part 302, so that more air in the second ventilation chamber 202 enters the middle area of the laundry treatment chamber from the second air inlet part 302, and it also makes the air flow speed through the first air inlet part 303 relatively small, the air volume entering the laundry treatment chamber from the first air inlet part 303 relatively small, and because the clothes are almost sticking to the inner wall of the laundry drum 3, the air volume blown to the clothes is relatively small, and the heat exchange is uneven, resulting in the clothes being not easily dried.

[0067] If the laundry treatment device 1 operates in the first air inlet mode, at this time the switching member 41 is in an off state, the flow area of the air passage chamber 203 reaches the minimum, the air flow speed through the first air inlet part 303 is relatively large, and because the clothes are almost sticking to the inner wall of the laundry drum 3, the air volume blown to the clothes per unit time is relatively large, so that the clothes can be quickly dried.

[0068] Therefore, by using the switching member 41 to change the flow area of the air passage chamber 203, the flow direction and flow speed from the air passage chamber 203 to the first ventilation chamber 201 can be changed, and then the air flow speed of the first air inlet part 303 can be controlled to realize different air inlet modes and meet different drying requirements.

[0069] In some embodiments, the switching member 41 is used to control the on / off of a part of the air passage cavity 203. In a plane perpendicular to the laundry treatment drum 3, the ratio of the air flow width of the air passage cavity 203 when the switching member 41 is in the off state to the filtering width of the air passage cavity 203 when the switching member 41 is in the on state is greater than 1 / 10. For example, the ratio of the air flow width of the air passage cavity 203 when the switching member 41 is in the off state to the filtering width of the air passage cavity 203 when the switching member 41 is in the on state can be 1 / 9, 1 / 7, 1 / 5, 1 / 3, 1 / 2, etc.

[0070] For example, the switching member 41 can be a complete switching board, so that a part of the air passage cavity 203 can be blocked by a complete switching board.

[0071] Specifically, as Figures 5 - 7 shown, the air passage cavity 203 includes a first region 203a and a second region 203b. The first region 203a is always in the on state. The switching board is movably arranged in the second region 203b to control the on / off of the second region 203b. In a plane perpendicular to the laundry treatment drum 3, the ratio of the air flow width L1 of the first region 203a to the air flow width L of the air passage cavity 203 is greater than 1 / 10.

[0072] When the switching board moves to the off state as Figure 6 shown, the switching board disconnects the second region 203b, and the first region 203a is in the on state. At this time, the air flow area of the air passage cavity 203 reaches the minimum. When the switching board moves to the on state as Figure 7 shown, the switching board connects the second region 203b, and the first region 203a is in the on state. At this time, the air flow area of the air passage cavity 203 reaches the maximum.

[0073] It should be noted that when the switching board moves to the off state as Figure 6 shown, the switching board can be in contact and cooperation with the inner wall of the air passage cavity 203, that is, the second region 203b is completely closed at this time; of course, when the switching board moves to the off state as Figure 6 shown, there can also be a gap between the switching board and the inner wall of the air passage cavity 203, that is, the second region 203b is not completely closed at this time, so that most of the air flow in the second ventilation cavity 202 can enter the first ventilation cavity 201 through the first region 203a.

[0074] More specifically, as Figure 5As shown in the figure, the air passage cavity 203 has a first side wall 2121 and a second side wall 2122 which are oppositely arranged. The first region 203a is arranged close to the first side wall 2121 of the air passage cavity 203, and the second region 203b is arranged close to the second side wall 2122 of the air passage cavity 203. When the switching plate disconnects the second region 203b and the first region 203a is in the conducting state, the air flow in the second ventilation cavity 202 can enter the first ventilation cavity 201 through the first region 203a. Specifically, the air flow can flow along the first side wall 2121, directly impact the first extension portion 321, and flow tangentially along the first extension portion 321 to the gap between the air duct housing assembly 2 and the first extension portion 321, and then can enter the laundry treatment cavity through the first air inlet portion 303.

[0075] Among them, the air duct housing assembly 2 includes a volute 21. The first side wall 2121 is oppositely arranged with the volute tongue 211 of the volute 21, and the second side wall 2122 is adjacently arranged with the volute tongue 211, that is, the first region 203a is arranged away from the volute tongue 211, and the second region 203b is arranged close to the volute tongue 211.

[0076] Of course, the air passage cavity 203 may also include a first region 203a, a second region 203b and a third region. The second region 203b is located between the first region 203a and the third region. The first region 203a is arranged close to the first side wall 2121 of the air passage cavity 203, and the third region is arranged close to the second side wall 2122 of the air passage cavity 203. The first region 203a and the third region are always in the conducting state. The switching plate is movably arranged in the second region 203b for controlling the on-off of the second region 203b. In a plane perpendicular to the laundry treatment cylinder 3, the ratio of the total flow width of the first region 203a and the third region to the flow width of the flow passage cavity 203 is greater than 1 / 10.

[0077] When the switching plate disconnects the second region 203b and the first region 203a and the third region are in the conducting state, the air flow in the second ventilation cavity 202 can enter the first ventilation cavity 201 through the first region 203a and the third region. Specifically, the air flow can flow along the first side wall 2121 and the second side wall 2122, directly impact the first extension portion 321, and flow tangentially along the first extension portion 321 to the gap between the air duct housing assembly 2 and the first extension portion 321, and then can enter the laundry treatment cavity through the first air inlet portion 303.

[0078] Therefore, in the above technical solution, by selecting the setting position of the switching plate, the air passage direction of the air flow passing through the air passage cavity 203 can be controlled, so that the air speed and air volume flowing through the first air inlet portion 303 and the second air inlet portion 302 can be adjusted, and further different drying requirements can be met.

[0079] Such as Figure 6 andFigure 7 As shown, the switching plate has a mounting shaft 411. The switching device 4 further includes a driving member 42, which is connected to the mounting shaft 411. The driving member 42 is used to drive the mounting shaft 411 to rotate, so as to drive the switching plate to switch between the off state and the on state.

[0080] Among them, the mounting shaft 411 can extend along the arrangement direction of the first region 203a and the second region 203b, that is, the rotation axis of the switching plate extends along the arrangement direction of the first region 203a and the second region 203b. Of course, the mounting shaft 411 can also extend along the direction parallel to the axial direction of the laundry treatment cylinder 3. The driving member 42 can be arranged outside the air duct housing assembly 2 to reduce the occupied space of the driving member 42 at the air passage chamber 203.

[0081] In the embodiment where the mounting shaft 411 extends along the arrangement direction of the first region 203a and the second region 203b, a fixing seat 43 is provided at the air passage chamber 203. The fixing seat 43 is located between the first region 203a and the second region 203b. The air duct housing assembly 2 has a through hole 44. The mounting shaft 411 passes through the through hole 44. One end of the mounting shaft 411 extending into the air duct housing assembly 2 is rotatably connected to the fixing seat 43, and one end of the mounting shaft 411 located outside the air duct housing assembly 2 is connected to the driving member 42, thereby ensuring the installation reliability and stability of the switching plate.

[0082] For another example, the switching member 41 can include a plurality of rotatable switching plates, and a part of the air passage chamber 203 can be blocked by the plurality of switching plates.

[0083] As Figures 5 - 7 shown, in some embodiments, the air duct housing assembly 2 includes a volute 21. The volute 21 is adapted to define a second ventilation chamber 202. The switching member 41 is disposed opposite to the first air inlet portion 303, and the switching member 41 is located downstream of the volute tongue 211 of the volute 21, so as to avoid the switching member 41 blocking the volute tongue 211 in the air flow direction and affecting the air flow in the second ventilation chamber 202 flowing into the first ventilation chamber 201.

[0084] In some examples, the volute 21 includes a first side wall 2121 and a second side wall 2122. The first side wall 2121 is disposed opposite to the volute tongue 211, and the second side wall 2122 is disposed adjacent to the volute tongue 211.

[0085] In some specific examples, the switching member 41 is movably disposed in the middle of the first side wall 2121 and the second side wall 2122, and the switching member 41 is spaced apart from the first side wall 2121 and the second side wall 2122.

[0086] That is to say, the air passage cavity 203 includes a first region 203a, a second region 203b, and a third region. The second region 203b is located between the first region 203a and the third region. The first region 203a is disposed adjacent to the first side wall 2121 of the air passage cavity 203, and the third region is disposed adjacent to the second side wall 2122 of the air passage cavity 203. The first region 203a and the third region are always in a conducting state. The switching member 41 is movably disposed in the second region 203b and is used to control the on-off of the second region 203b.

[0087] In some other specific examples, one end of the switching member 41 is close to one of the first side wall 2121 and the second side wall 2122, and the other end of the switching member 41 is spaced apart from the other of the first side wall 2121 and the second side wall 2122.

[0088] That is to say, the air passage cavity 203 includes a first region 203a and a second region 203b. The first region 203a is always in a conducting state. The switching plate is movably disposed in the second region 203b and is used to control the on-off of the second region 203b. One of the first region 203a and the second region 203b is disposed close to the volute tongue 211 and the other is disposed away from the volute tongue 211.

[0089] Thus, the switching member 41 can control the on-off of a part of the air passage cavity 203 close to or away from the volute tongue 211, so that the laundry treating apparatus 1 can supply air to the laundry treating cavity in different air inlet modes.

[0090] Specifically, as Figures 10 - 13 shown, the first extension portion 321 includes an end wall 3211 and a peripheral wall 3212. The end wall 3211 is disposed opposite to the laundry loading and unloading opening 301, and the peripheral wall 3212 surrounds the end wall 3211. The first air inlet portion 303 is disposed on the peripheral wall 3212, and the second air inlet portion 302 is disposed on the end wall 3211, so that the first air inlet portion 303 surrounds the second air inlet portion 302.

[0091] The air duct housing assembly 2 includes a volute 21. The volute 21 is adapted to define a second ventilation cavity 202. The switching member 41 is disposed opposite to the peripheral wall 3212, so that the switching member 41 is disposed opposite to the first air inlet portion 303. And the switching member 41 is located downstream of the volute tongue 211 of the volute 21, avoiding the switching member 41 from blocking the volute tongue 211 in the air flow direction and affecting the air flow in the second ventilation cavity 202 from flowing into the first ventilation cavity 201.

[0092] As Figures 14 - 15As shown, the first extension part 321 includes a first air inlet wall 3213. The first air inlet wall 3213 extends gradually from the inside to the outside along its radial direction towards the direction close to the clothing access opening 301. Both the first air inlet part 303 and the second air inlet part 302 are arranged on the first air inlet wall 3213, and the first air inlet part 303 surrounds the second air inlet part 302.

[0093] The air duct housing assembly 2 includes a volute 21. The volute 21 is adapted to define a second ventilation cavity 202. The switching member 41 is arranged on the outer periphery of the first air inlet wall 3213 and is arranged opposite to the first air inlet wall 3213, so that the switching member 41 is arranged opposite to the first air inlet part 303, and the switching member 41 is located downstream of the volute tongue 211 of the volute 21, avoiding the switching member 41 blocking the volute tongue 211 in the air flow direction and affecting the air flow in the second ventilation cavity 202 from flowing into the first ventilation cavity 201.

[0094] Hereinafter, an embodiment in which the first extension part 321 includes an end wall 3211 and a peripheral wall 3212 will be taken as an example for description. Figure 9 The figure shows a comparison diagram of the air flow streamlines when the switching device is in the off state and the on state. Among them, the area where the red streamlines are located represents the area with the maximum wind speed, and the area where the blue streamlines are located represents the area with the minimum wind speed.

[0095] As Figure 9 shown in the right figure of Figure 6 When the switching member 41 rotates to the off state as shown in

[0096] As Figure 9 shown in the left figure of Figure 7 When the switching member 41 rotates to the on state as shown in

[0097] Therefore, by arranging the switching member 41 as described above, when the switching member 41 closes a part of the air passage cavity 203, the wind speed of the airflow flowing along the peripheral wall 3212 can be increased. In this way, more airflow enters the laundry treatment cavity from the first air inlet portion 303 on the peripheral wall 3212 along the circumferential direction of the first extension portion 321, enabling the airflow to better contact the laundry attached to the inner wall of the laundry treatment cylinder 3, which is more conducive to the drying requirements when there is a large circumferential load or when wool is attached to the wall, resulting in a faster drying rate.

[0098] As Figure 5 , Figures 12 - 13 and Figures 14 - 15 shown, in some embodiments, the first air inlet portion 303 includes a plurality of first air inlet holes 3031, and the flow-through area of the first air inlet holes 3031 gradually expands along the airflow direction. The first air inlet holes 3031 have a pressurizing effect on the air, so that the air flowing into the cylinder body 31 has a strong penetration ability, and thus the effect of penetrating and drying the laundry can be achieved.

[0099] In some embodiments, the first air inlet portion 303 includes a plurality of first air inlet holes 3031 arranged at circumferential intervals on the end wall 3211. Air enters the laundry treatment cavity through the plurality of first air inlet holes 3031 to dry the laundry in the laundry treatment cavity.

[0100] In some embodiments, the first air inlet holes 3031 form polygonal holes. For example, the first air inlet holes 3031 can form triangular holes, quadrilateral holes, hexagonal holes, etc. With such an arrangement, on the basis of ensuring the air intake volume, a part of the sound waves can be blocked to achieve noise reduction. Of course, the first air inlet holes 3031 can also be circular holes, elliptical holes, etc., and can be specifically selected according to actual situations.

[0101] In some embodiments, the number of the first air inlet portions 303 is one, and air enters the laundry treatment cavity through the first air inlet portion 303 to dry the laundry in the inner cavity of the cylinder body 31.

[0102] In some embodiments, the number of the first air inlet portions 303 is multiple, and the multiple first air inlet portions 303 are arranged axially on the first extension portion 321. Air can enter the laundry treatment cavity through the multiple first air inlet portions 303 to dry the laundry in the laundry treatment cavity.

[0103] As Figure 13 shown, in this embodiment, the multiple first air inlet portions 303 are arranged axially on the first extension portion 321. The first air inlet portion 303 includes a plurality of first air inlet holes 3031 arranged at circumferential intervals on the end wall 3211, and the first air inlet holes 3031 in adjacent two first air inlet portions 303 are arranged staggeredly axially of the cylinder cover 32, so as to reasonably arrange the multiple second air inlet holes 3021 in a limited space, which is convenient for increasing the air intake volume.

[0104] As Figures 10 - 15 shown, according to some embodiments of the present utility model, the number of the second air inlet parts 302 is multiple, and the multiple second air inlet parts 302 are arranged at intervals in the circumferential direction of a circle. Each second air inlet part 302 includes multiple second air inlet holes 3021, and the multiple second air inlet holes 3021 are arranged in a radial spiral pattern on the circle.

[0105] A part of the air entering the first ventilation cavity 201 can enter the clothing treatment cavity along the direction towards the clothing access opening 301 through the multiple second air inlet parts 302 to dry the clothes in the clothing treatment cavity. Another part of the air entering the first ventilation cavity 201 can also enter the clothing treatment cavity through the multiple first air inlet parts 303 to dry the clothes in the clothing treatment cavity.

[0106] Since the multiple second air inlet parts 302 are arranged opposite to the clothing access opening 301, the multiple second air inlet parts 302 will be exposed from the clothing access opening 301, so that the multiple second air inlet holes 3021 are arranged in a radial spiral pattern on the circle. This is convenient for improving the aesthetic degree of the arrangement of the second air inlet parts 302 on the end wall 3211, and further improving the aesthetic degree of the clothing treatment device 1. In addition, when the clothing treatment cylinder 3 rotates, the multiple second air inlet holes 3021 arranged in a radial spiral pattern on the circle can not only form a spiral air flow to enhance the drying effect, but also form a dynamic visual effect to further improve the aesthetic degree of the clothing treatment device 1.

[0107] Therefore, by arranging the multiple second air inlet holes 3021 as described above, the multiple second air inlet holes 3021 can be arranged in an orderly manner. When the air flow enters the clothing treatment cavity from the second air inlet part 302, the air inlet uniformity of the clothing treatment cavity in its circumferential direction can be further ensured, and the drying effect can be further improved.

[0108] It can be understood that the multiple second air inlet holes 3021 are arranged more densely at the position close to the middle of the cylinder cover 32 and more sparsely at the position far from the middle of the cylinder cover 32. Therefore, in order to ensure the air inlet uniformity of the clothing treatment cavity in its radial direction, the size of the second air inlet holes 3021 close to the middle of the cylinder cover 32 can be set smaller, and the size of the second air inlet holes 3021 far from the middle of the cylinder cover 32 can be set larger. Of course, the shapes and sizes of the multiple second air inlet holes 3021 in each second air inlet part 302 can also be set to be the same.

[0109] Among them, the second air inlet hole 3021 forms a polygonal hole. For example, the second air inlet hole 3021 can form a triangular hole, a quadrilateral hole, a hexagonal hole, etc. With such a setting, on the basis of ensuring the air intake volume, a part of the sound waves can be blocked to achieve noise reduction. Of course, the second air inlet hole 3021 can also be a circular hole, an elliptical hole, etc., and can be specifically selected according to the actual situation.

[0110] It should be noted that the arrangement rule of multiple second air inlet holes 3021 can be different from that of multiple first air inlet holes 3031.

[0111] For example, as Figure 12 shown, multiple second air inlet holes 3021 are divided into multiple second air inlet parts 302, and the multiple second air inlet parts 302 are arranged at intervals in the circumferential direction of a circle. Each second air inlet part 302 includes multiple second air inlet holes 3021, and the multiple second air inlet holes 3021 are arranged in a spiral in the radial direction of the circle. And multiple first air inlet holes 3031 are divided into multiple first air inlet parts 303, and the multiple first air inlet parts 303 are arranged axially on the first extension part 321. Each first air inlet part 303 includes multiple first air inlet holes 3031 arranged at intervals in the circumferential direction of the first extension part 321.

[0112] Of course, the arrangement rule of multiple second air inlet holes 3021 can be the same as that of multiple first air inlet holes 3031.

[0113] For example, as Figure 14 shown, multiple second air inlet holes 3021 are divided into multiple second air inlet parts 302, and the multiple second air inlet parts 302 are arranged at intervals in the circumferential direction of a circle. Each second air inlet part 302 includes multiple second air inlet holes 3021, and the multiple second air inlet holes 3021 are arranged in a spiral in the radial direction of the circle. And multiple first air inlet holes 3031 are divided into one first air inlet part 303. Each first air inlet part 303 includes multiple first air inlet holes 3031 arranged at intervals in the circumferential direction of the first extension part 321, and the multiple first air inlet holes 3031 of each first air inlet part 303 correspond to the positions of the multiple second air inlet parts 302 one by one. Specifically, each first air inlet hole 3031 can be located on the spiral line where the multiple second air inlet holes 3021 in the corresponding second air inlet part 302 are located.

[0114] Alternatively, multiple first air inlet parts 303 are arranged axially on the first extension part 321. The multiple first air inlet holes 3031 are divided into multiple first air inlet parts 303. Each first air inlet part 303 includes multiple first air inlet holes 3031 that are circumferentially spaced apart on the first extension part 321. Moreover, the multiple first air inlet holes 3031 of each first air inlet part 303 correspond one-to-one in position to the multiple second air inlet parts 302. Specifically, each first air inlet hole 3031 can be located on the helix where the multiple second air inlet holes 3021 in the corresponding-position second air inlet part 302 are located.

[0115] As Figures 10 - 13 shown, in some embodiments, the first extension part 321 includes an end wall 3211 and a peripheral wall 3212. The end wall 3211 is disposed opposite to the clothing access opening 301, and the peripheral wall 3212 surrounds the end wall 3211.

[0116] Among them, the first air inlet part 303 is disposed on the peripheral wall 3212, and the second air inlet part 302 is disposed on the end wall 3211, so that the first air inlet part 303 surrounds the second air inlet part 302.

[0117] In some specific embodiments, the end wall 3211 includes a first wall body 32111. The first wall body 32111 extends from the outside to the inside in the direction approaching the clothing access opening 301, and the second air inlet part 302 is disposed on the first wall body 32111. This facilitates increasing the area of the first wall body 32111, and further facilitates increasing the area of the second air inlet part 302 on the first wall body 32111, so as to be able to increase the air intake volume and enable air to uniformly enter the first chamber from the second air inlet part 302. In addition, the first wall body 32111 extends from the outside to the direction approaching the clothing access opening 301 to avoid the length of the clothing treatment cylinder 3 being too long in the axial direction of the cylinder body 31, and further avoid the size of the clothing treatment device 1 being too large.

[0118] As Figures 10 - 13 shown, in some specific embodiments, the end wall 3211 further includes a second wall body 32112. The first wall body 32111 is located on the outer periphery of the second wall body 32112, and the first wall body 32111 connects the second wall body 32112 and the peripheral wall 3212, so that the second wall body 32112 is located inside the first wall body 32111 to form a plane inside the second wall body 32112, avoiding a conical angle being formed at the inner end of the second wall body 32112 and avoiding the conical angle from hooking the clothing in the inner cavity of the cylinder body 31.

[0119] Among them, the first wall body 32111 and the peripheral wall 3212 are connected with an arc transition, so that the transition between the first wall body 32111 and the peripheral wall 3212 is smooth, avoiding a sharp included angle between the first wall body 32111 and the peripheral wall 3212 and avoiding the included angle from hooking the clothing in the inner cavity of the cylinder body 31.

[0120] Of course, the first wall 32111 and the second wall 32112 are connected with an arc transition so that a smooth transition is achieved between the first wall 32111 and the second wall 32112, avoiding a sharp angle between the first wall 32111 and the second wall 32112 and preventing the angle from snagging the clothes in the inner cavity of the drum body 31.

[0121] As Figures 10 - 15 shown, in some embodiments, a ventilation opening 32113 is provided on the first extension 321. The laundry treatment drum 3 further includes a wind guide cover 33. The wind guide cover 33 is disposed inside the first extension 321, and an air passage cavity 3301 is defined between the wind guide cover 33 and the first extension 321. The wind guide cover 33 is provided with a plurality of third outer air inlet parts 3302. The plurality of third outer air inlet parts 3302 are circumferentially spaced apart on a circumference. The third outer air inlet part 3302 communicates the air passage cavity 3301 and the laundry treatment cavity. A plurality of second air inlet parts 302 are located on the outer periphery of the wind guide cover 33.

[0122] Specifically, as Figure 10 、 Figure 12 and Figure 13 shown, in some examples, the first extension 321 includes an end wall 3211 and a peripheral wall 3212. The end wall 3211 is disposed opposite to the laundry access opening 301. The peripheral wall 3212 surrounds the end wall 3211. The end wall 3211 includes a first wall 32111 and a second wall 32112. The first wall 32111 extends from the outside to the inside in a direction approaching the laundry access opening 301. The first wall 32111 is located on the outer periphery of the second wall 32112. The first wall 32111 connects the second wall 32112 and the peripheral wall 3212, so that the second wall 32112 is located inside the first wall 32111. The first air inlet part 303 is provided on the peripheral wall 3212, and the second air inlet part 302 is provided on the first wall 32111, so that the first air inlet part 303 surrounds the second air inlet part 302.

[0123] Wherein, a ventilation opening 32113 is provided on the second wall 32112. The wind guide cover 33 is disposed inside the end wall 3211, and an air passage cavity 3301 is defined between the wind guide cover 33 and the second wall 32112, so that a plurality of second air inlet parts 302 are located on the outer periphery of the wind guide cover 33. The wind guide cover 33 is provided with a plurality of third outer air inlet parts 3302. The plurality of third outer air inlet parts 3302 are circumferentially spaced apart on a circumference. The third outer air inlet part 3302 communicates the air passage cavity 3301 and the laundry treatment cavity.

[0124] As Figures 14 - 15 shown, in some other examples, the first extension 321 includes a first air inlet wall 3213. The first air inlet wall 3213 extends from the inside to the outside along its radial direction in a direction approaching the laundry access opening 301.

[0125] Furthermore, the first extension portion 321 also includes a second air inlet wall 3214, the first air inlet wall 3213 surrounds the outer periphery of the second air inlet wall 3214, the second air inlet wall 3214 is provided with a vent 32113, the air guide cover 33 is arranged on the inner side of the end wall 3211, and an air cavity 3301 is defined between the air guide cover 33 and the second air inlet wall 3214, the air guide cover 33 is provided with a plurality of third external air inlet portions 3302, the plurality of third external air inlet portions 3302 are arranged at circumferential intervals on a circle, and the third external air inlet portions 3302 are connected to the air cavity 3301 and the clothing processing cavity.

[0126] The second air inlet wall 3214 extends in a direction away from the clothing access opening 301 to form a convex portion on the outer surface of the first extension portion 321 , and a concave portion 32140 for accommodating the air guide cover 33 is formed on the inner surface of the first extension portion 321 .

[0127] When the clothes processing device 1 is working, part of the airflow entering the first ventilation cavity 201 can enter the air cavity 3301 from the vent 32113, and then enter the clothes processing cavity through the third outer air inlet 3302. The airflow flowing out of the third outer air inlet 3302 can flow into the clothes processing cavity under the guidance of the air guide cover 33, thereby concentrating the airflow, so that the airflow in the clothes processing cavity forms a high wind pressure with strong penetration ability, and achieves the effect of central penetration drying. In addition, the air guide cover 33 can change the flow direction of the airflow, so that the air intake of the clothes processing cavity is more uniform, and the drying effect is further improved.

[0128] Therefore, by providing the air guide cover 33, the air intake form in the clothing processing chamber can be improved, the air intake pressure in the central area of ​​the drum cover 32 can be increased, and the effect of center penetration drying can be achieved, which is convenient for improving the drying effect and enhancing the user experience.

[0129] In some embodiments, the side of the middle area of ​​the first extension portion 321 facing away from the clothing access port 301 is used to install a rotating shaft (not shown in the figure), which is used to cooperate with the driving device of the clothing processing device 1 to drive the clothing processing drum 3 to rotate and achieve uniform drying of the clothes.

[0130] In some embodiments, a plurality of vents 32113 are provided in a middle area of ​​the first extension portion 321 (such as the second wall 32112 or the second air inlet wall 3214 described above), and the plurality of vents 32113 are arranged at intervals in the circumferential direction around a circle. A rotating shaft is provided on the side of the middle area of ​​the first extension portion 321 that is away from the clothing access port 301, and the rotating shaft is used to cooperate with a driving device so that the driving device drives the clothing processing drum 3 to rotate, so that the clothing processing device 1 can dry the clothing evenly. The plurality of vents 32113 are arranged circumferentially around the rotating shaft, so as to reserve a position for the rotating shaft while maximizing the ventilation area, thereby facilitating increasing the air intake into the inner cavity of the drum body 31.

[0131] As Figure 10 and Figure 12 shown, in some specific examples, each third outer air inlet part 3302 includes a plurality of third outer air inlet holes 33021 arranged at circumferential radial intervals. With such an arrangement, the plurality of third outer air inlet holes 33021 can be arranged in an orderly manner. When air flows into the air passing cavity 3301 from the air vent 32113, it can enter the inner cavity of the cylinder body 31 from the plurality of third outer air inlet holes 33021, further ensuring the uniformity of air inlet in the circumferential direction of the inner cavity of the cylinder body 31 and further improving the drying effect.

[0132] Among them, the third outer air inlet holes 33021 form polygonal holes. For example, the third outer air inlet holes 33021 can form triangular holes, quadrilateral holes, hexagonal holes, etc. With such an arrangement, on the basis of ensuring the air inlet volume, a part of the sound waves can be blocked to achieve noise reduction. Of course, the third outer air inlet holes 33021 can also be round holes, oval holes, etc., and can be specifically selected according to the actual situation.

[0133] As Figure 10 and Figure 12 shown, in some specific examples, the number of the plurality of third outer air inlet parts 3302 is equal to the number of the plurality of second air inlet parts 302 and their positions correspond one by one. On the one hand, this can ensure the consistency of the arrangement of the plurality of third outer air inlet parts 3302 and the plurality of second air inlet parts 302, which is beneficial to enhancing the visual experience. On the other hand, the plurality of third outer air inlet parts 3302 are equivalent to a continuous structure of the plurality of second air inlet parts 302, which can further ensure the uniformity of air inlet in the circumferential direction of the inner cavity of the cylinder body 31 and further improve the drying effect.

[0134] In some embodiments, the second air inlet part 302 includes a plurality of second air inlet holes 3021 arranged in a circumferential radial spiral pattern, and the third outer air inlet part 3302 includes a plurality of third outer air inlet holes 33021 arranged in a circumferential radial spiral pattern. It can be understood that the second air inlet holes 3021 and the third outer air inlet holes 33021 near the middle of the cylinder cover 32 are arranged more densely, and are arranged more sparsely at positions far from the middle of the cylinder cover 32. Therefore, the uniformity of air inlet in the radial direction of the inner cavity of the cylinder body 31 is ensured.

[0135] In some examples, in each third outer air inlet part 3302, the flow-through areas of the plurality of third outer air inlet holes 33021 increase sequentially from the inside to the outside, that is, the sizes of the third outer air inlet holes 33021 near the middle of the cylinder cover 32 can be set smaller, and the sizes of the third outer air inlet holes 33021 far from the middle of the cylinder cover 32 can be set larger.

[0136] Of course, the shapes and sizes of the multiple third external air inlet holes 33021 in each third external air inlet part 3302 can also be set to be the same; or, the flow-through areas of the multiple third external air inlet holes 33021 in each third external air inlet part 3302 increase sequentially from outside to inside.

[0137] As Figures 10 - 13 shown, in some specific embodiments of the present invention, the air guide cover 33 includes a middle cover part 331 and an annular cover part 332. The annular cover part 332 surrounds the outside of the middle cover part 331. The inner ring of the annular cover part 332 is connected to the middle cover part 331 and the outer ring abuts against the end wall 3211. The annular cover part 332 extends from outside to inside in the direction close to the clothing access opening 301, and the third external air inlet part 3302 is arranged on the annular cover part 332. The air flow entering the inner cavity of the cylinder body 31 from the multiple third external air inlet parts 3302 on the annular cover part 332 can change the air inlet direction under the guidance of the annular cover part 332, so that the air flow can fill the inner cavity of the cylinder body 31, thereby making the air inlet in the inner cavity of the cylinder body 31 more uniform and further improving the drying effect of the clothing treatment device 1.

[0138] As Figure 12 and Figure 13 shown, in some embodiments, the middle cover part 331 is provided with a third internal air inlet part 3303. The third internal air inlet part 3303 includes multiple third internal air inlet holes 33031 arranged at intervals. The air flow entering the inner cavity of the cylinder body 31 from the multiple third internal air inlet holes 33031 on the middle cover part 331 can gather together to form a high air pressure with strong penetration ability, realizing the effect of central penetration drying, and solving the problem of incomplete drying of the clothes wrapped in the center. The air flow entering the inner cavity of the cylinder body 31 from the multiple third external air inlet parts 3302 on the annular cover part 332 can change the air inlet direction under the guidance of the annular cover part 332, so that the air flow can fill the inner cavity of the cylinder body 31, thereby making the air inlet in the inner cavity of the cylinder body 31 more uniform and further improving the drying effect of the clothing treatment device 1.

[0139] As Figure 12 and Figure 13 shown, in some embodiments, the outer surface of the annular cover part 332 forms a concave arc surface. Specifically, the outer surface of the annular cover part 332 forms a concave arc surface extending from outside to inside in the direction close to the open end of the clothing treatment cavity. On the one hand, this can make the air flow in the air passage 3301 flow in the direction close to the clothing access opening 301 under the guidance of the annular cover part 332, improving the air speed of the air flow in the middle of the inner cavity of the cylinder body 31, thereby forming a high air pressure with strong penetration ability, which is conducive to realizing the effect of central penetration drying. On the other hand, it can change the air inlet direction of the third external air inlet holes 33021, so that the air flow can fill the inner cavity of the cylinder body 31, thereby making the air enter the inner cavity of the cylinder body 31 more evenly and further improving the drying effect of the clothing treatment device 1.

[0140] In addition, when part of the air can flow towards the middle cover part 331 along the outer surface of the annular cover part 332, the concave arc surface of the outer surface of the annular cover part 332 has an aggregating effect on the air, so as to increase the air intake volume of the third inner air inlet part 3303 at the middle cover part 331. Furthermore, the air flow can be aggregated together at the middle cover part 331, so that the air enters the inner cavity of the cylinder body 31 from the third inner air inlet hole 33031 with a higher air pressure, achieving the effect of central penetration drying.

[0141] In some examples, the middle cover part 331 and the annular cover part 332 are integrally formed. By integrally forming the middle cover part 331 and the annular cover part 332, not only can the number of components be reduced, and the connecting structure for connecting the middle cover part 331 and the annular cover part 332 can be omitted, but also the molding is more convenient, which is beneficial to improving the connection reliability between the middle cover part 331 and the annular cover part 332 and is beneficial to improving production efficiency.

[0142] As Figure 1 and Figure 2 shown, according to some embodiments of the present invention, the laundry treatment cylinder 3 includes a cylinder body 31 and a cylinder cover 32. One axial end of the cylinder body 31 has an open end, and the other end of the cylinder body 31 has a laundry access opening 301. The cylinder cover 32 closes the open end to define a laundry treatment cavity with the cylinder body 31, and the structure is simple and convenient for molding.

[0143] Wherein, the cylinder cover 32 has a first extension part 321 extending in a direction away from the laundry access opening 301. The laundry treatment cylinder 3 defines a laundry treatment cavity, and the laundry treatment cavity may include the inner cavity of the cylinder body 31 and the inner cavity of the cylinder cover 32. The inner cavity of the cylinder cover 32 includes a first air inlet cavity, and the first extension part 321 defines the first air inlet cavity.

[0144] As Figure 13 shown, in some embodiments of the present invention, the laundry treatment cylinder 3 includes a cylinder body 31 and a cylinder cover 32. The laundry treatment cylinder 3 defines a laundry treatment cavity, and the laundry treatment cavity includes the inner cavity of the cylinder body 31, a first air inlet cavity and a second air inlet cavity. The cylinder cover 32 has a first extension part 321 extending in a direction away from the laundry access opening 301, and the first extension part 321 defines the first air inlet cavity.

[0145] The drum lid 32 further has a second extension portion 322 extending in a direction away from the clothing access opening 301. The second extension portion 322 is a non-porous structure. The second extension portion 322 is located between the first extension portion 321 and the drum body 31, and the first extension portion 321 extends in a direction away from the clothing access opening 301 relative to the second extension portion 322. The second extension portion 322 defines a second air inlet cavity, and the second air inlet cavity is communicated between the first air inlet cavity and the inner cavity of the drum body 31. A clothing treatment cavity is defined between the drum lid 32 and the drum body 31. By providing the second extension portion 322, the volume of the clothing treatment cavity can be increased, thereby facilitating an increase in the maximum drying capacity of the clothing treatment device 1. At the same time, by increasing the volume of the clothing treatment cavity, it is convenient to increase the contact area between the clothing in the clothing treatment cavity and the air, and thus it is convenient to improve the efficiency during the drying treatment.

[0146] As Figures 1 - 4 shown, in some embodiments, the air duct housing assembly 2 further includes a support plate 22. The support plate 22 defines a first ventilation cavity 201. The first through opening 2011 is provided on the support plate 22, and the first through opening 2011 and the first ventilation cavity 201 are oppositely arranged in the thickness direction of the support plate 22. The support plate 22 is further provided with a second through opening 2021 and a third through opening 204. The third through opening 204 is provided on the cavity wall of the first ventilation cavity 201, and the third through opening 204 communicates the inside and outside of the first ventilation cavity 201.

[0147] Furthermore, the air duct housing assembly 2 further includes a volute 21. The volute 21 is provided on the support plate 22, and the volute 21 can cover the second through opening 2021 and the third through opening 204. The volute 21 and the support plate 22 define a second ventilation cavity 202, and the second ventilation cavity 202 communicates the second through opening 2021 and the third through opening 204.

[0148] In the above technical solution, by setting the air duct housing assembly 2 to include the support plate 22 and the volute 21, on the one hand, each component is separately processed, formed, and then assembled, which is beneficial to improving production efficiency. On the other hand, the sealing performance of the first ventilation cavity 201 can be better ensured.

[0149] Among them, the support plate 22 can be an integrally formed part. The support plate 22 in the embodiment of the present utility model itself defines a first ventilation cavity 201 having a first through opening 2011. The first ventilation cavity 201 forms a part of the ventilation cavity close to the air inlet of the clothing treatment cavity that connects the outlet of the ventilation duct and the air inlet of the clothing treatment cavity. Since the first ventilation cavity 201 is partially defined by the integrally formed support plate 22, the sealing performance of the first ventilation cavity 201 is better, and the assembly cost of the air duct housing assembly 2 can also be reduced.

[0150] For example, the support plate 22 can be a metal part, so that the high-strength metal material can endow the support plate 22 with higher strength, thus having sufficient strength to support the laundry drum 3 and connect with the laundry drum 3.

[0151] In some embodiments, the volute 21 can be a plastic part, which can reduce the production and processing difficulty. Meanwhile, due to the characteristics of low density and high strength of the plastic material, the volute 21 has sufficient strength to ensure the stability of the volute 21, and at the same time makes the weight of the volute 21 lighter, realizing the lightweight of the laundry equipment 1.

[0152] As Figure 5 shown, in some examples, the projection of the volute tongue 211 on the support plate 22 is located between the first through port 2011 and the second through port 2021. The air in the air duct can enter the second ventilation cavity 202 from the second through port 2021, then pass through the volute tongue 211 and enter the first ventilation cavity 201. The air flow entering the first ventilation cavity 201 can enter the laundry drum 3 from the second air inlet part 302 and the first air inlet part 303 to dry the laundry.

[0153] In the above technical solution, by arranging the volute tongue 211 between the first through port 2011 and the second through port 2021, the air flow in the second ventilation cavity 202 can smoothly enter the first ventilation cavity 201, preventing the air flow from being unable to discharge from the second ventilation cavity 202.

[0154] Since the third through port 204 is arranged on the cavity wall of the first ventilation cavity 201, and the projection of the cavity wall of the first ventilation cavity 201 in the plane where the first through port 2011 is located is within the first through port 2011, therefore, the projection of the third through port 204 in the plane where the first through port 2011 is located is within the first through port 2011.

[0155] To ensure the sealing performance of the first ventilation cavity 201 and the second ventilation cavity 202, a structure needs to be designed to cover the third through port 204. When the third through port 204 is designed too large, it will affect the production cost of the structure covering the third through port 204, and make the assembly and sealing cost between this structure and the support plate 22 higher.

[0156] Moreover, when the projected area of the third through - opening 204 in the plane where the first through - opening 2011 is located is greater than half of the area of the first through - opening 2011, the third through - opening 204 will cover the central position of the first through - opening 2011. That is to say, the support plate 22 structure cannot cover the central position of the first through - opening 2011. When the air duct housing assembly 2 needs to bear the role of supporting the laundry drum 3, the laundry drum 3 cannot be directly connected to the support plate 22, and the high - strength support plate 22 cannot be used to support the laundry drum 3, which may cause the laundry drum 3 to be unstable. When the laundry drum 3 is connected to other structures covering the central position of the first through - opening 2011, in order to improve the strength of the structure connected to the laundry drum 3, this part of the structure needs to be designed with a reinforcement structure or needs to use high - strength metal materials to ensure its support stability for the laundry drum 3, thus increasing the overall production cost of the air duct housing assembly 2.

[0157] Therefore, in some embodiments, the projected area of the third through - opening 204 in the plane where the first through - opening 2011 is located is less than half of the area of the first through - opening 2011, so that the volute 21 does not cover the central position of the first through - opening 2011.

[0158] In some embodiments, the projection of the third through - opening 204 in the plane of the first through - opening 2011 extends along a first direction (such as Figure 2 the left - right direction shown), and a second direction (such as Figure 2 the up - down direction shown) is the radial direction of the first through - opening 2011 and is perpendicular to the first direction. Since the first through - opening 2011 is formed as a circular hole, the first through - opening 2011 and the first ventilation cavity 201 are relatively arranged in the thickness direction of the support plate 22. Therefore, the intersection line of the cavity wall of the first ventilation cavity 201 and the plane where the first through - opening 2011 is located surrounds the first through - opening 2011.

[0159] The cavity wall of the first ventilation cavity 201 includes a side wall and a rear wall. The side wall surrounds the rear wall and is connected to the edge of the first through - opening 2011. The third through - opening 204 includes a part provided on the side wall of the first ventilation cavity 201 and a part provided on the rear wall of the first ventilation cavity 201. The part of the third through - opening 204 provided on the side wall of the first ventilation cavity 201 mainly affects the dimension of the third through - opening 204 in the first direction, and the part of the third through - opening 204 provided on the rear wall of the first ventilation cavity 201 mainly affects the dimension of the third through - opening 204 in the second direction.

[0160] When the dimension of the projection of the third vent 204 in the first direction is less than 0.2 times the diameter of the first vent 2011, the opening area of the third vent 204 is too small, which affects the ventilation performance at the third vent 204, and further affects the drying performance of the laundry treatment device. When the dimension of the projection of the third vent 204 in the first direction is greater than 0.8 times the diameter of the first vent 2011, it causes the opening area of the third vent 204 on the side wall of the first ventilation cavity 201 to be too large, which affects the connection length between the corresponding structure of the side wall of the first ventilation cavity 201 and the main part of the support plate 22, and further affects the strength of the corresponding structure of the side wall of the first ventilation cavity 201. The strength of the corresponding structure of the side wall of the first ventilation cavity 201 cannot stably support the external structure, and the overall stability of the air duct housing assembly 2 is low. Therefore, in some embodiments, the dimension of the projection of the third vent 204 in the first direction is 0.2 - 0.8 times the diameter of the first vent 2011, that is, the distance between the two ends of the part of the third vent 204 provided on the side wall of the first ventilation cavity 201 in the circumferential direction of the first vent 2011 is 0.2 - 0.8 times the diameter of the first vent 2011, so as to ensure the stability of the air duct housing assembly 2 without affecting the drying performance.

[0161] When the dimension of the projection of the third vent 204 in the second direction is greater than 0.4 times the diameter of the first vent 2011, the third vent 204 will be close to or cover the central position of the first vent 2011, and then the structure of the support plate 22 cannot cover the central position of the first vent 2011 or the peripheral position of the central position. When the air duct housing assembly 2 needs to bear the function of supporting the laundry treatment drum 3, structures such as the bearing seat 111 cannot be provided at the corresponding position of the center of the first vent 2011 on the support plate 22 for connecting with the laundry treatment drum 3. Thus, the laundry treatment drum 3 cannot be directly connected to the support plate 22, and the high-strength support plate 22 cannot be used to support the laundry treatment drum 3, resulting in unstable setting of the laundry treatment drum 3. When the dimension of the projection of the third vent 204 in the second direction is less than 0.1, it will cause the opening area of the third vent 204 to be too small, which affects the ventilation performance at the third vent 204, and will also cause the area covered by the structure of the support plate 22 to be too large, with some redundant structures, affecting the production cost of the air duct housing assembly 2. Therefore, in some embodiments, the dimension of the projection of the third vent 204 in the second direction is 0.1 - 0.4 times the diameter of the first vent 2011.

[0162] In some embodiments, a sealing ring (not shown in the figure) is provided between the drum lid 32 and the air duct housing assembly 2, and the sealing ring surrounds the outside of the first vent 2011, that is, it surrounds the outside of the second air inlet part 302 and the first air inlet part 303 at the same time, so as to achieve the sealing between the air duct housing assembly 2 and the laundry treatment drum 3. The sealing ring is fixed on the air duct housing assembly 2, and the drum lid 32 is provided with an annular abutting protrusion 32121 for movable cooperation with the sealing ring.

[0163] According to some embodiments of the present utility model, the laundry treatment device 1 further includes a mounting base (not shown in the figure), the mounting base defines an air duct to communicate the laundry treatment chamber and the second through port 2021, and a heating element is provided in the air duct.

[0164] During the operation of the laundry treatment device 1, the wet and cold air flow in the laundry treatment chamber passes through the air duct defined by the mounting base, is heated and dehumidified in the air duct, passes through the second through port 2021, and enters the second ventilation chamber 202, the third through port 204, and the first ventilation chamber 201 under the drive of the air turbine 5. The dry and hot air flow in the first ventilation chamber 201 then enters the laundry treatment chamber through the second air inlet portion 302 and the first air inlet portion 303 for drying the laundry.

[0165] According to some embodiments of the present utility model, the laundry treatment device 1 further includes a heat pump system, the heat pump system includes an evaporator, a condenser, and a compressor, and the heating element includes the evaporator and the condenser. In the laundry treatment chamber, the dry and hot air passes through the wet clothes, the moisture remaining on the clothes absorbs heat, and the air becomes humid and hot air. The humid and hot air enters the air duct, and the humid and hot air is converted into dry and cold air after passing through the condenser, and the water vapor in the air condenses into water droplets and is discharged. At this time, the dry and cold air continues to be heated by the compressor and the evaporator.

[0166] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0167] In the description of the present utility model, the "first feature" and the "second feature" may include one or more of such features. In the description of the present utility model, the meaning of "a plurality" is two or more. In the description of the present utility model, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through other features therebetween. In the description of the present utility model, the first feature being "above", "above", and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature.

[0168] Other components and operations of the laundry treatment apparatus 1 according to the embodiments of the present utility model are known to those of ordinary skill in the art and will not be described in detail herein.

[0169] In the description of this specification, the descriptions with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0170] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the claims and their equivalents.

Claims

1. A clothes processing device, characterized in that: include: An air duct shell assembly, wherein the air duct shell assembly defines a first ventilation cavity and a second ventilation cavity in communication with each other, and one side of the air duct shell assembly has a first opening in communication with the first ventilation cavity; A clothes processing drum, the clothes processing drum defines a clothes processing cavity and has a clothes taking-in and putting-out opening at one end and a first extension portion at the other end, the first extension portion extends from the first opening into the first ventilation cavity, the first extension portion is provided with a first air inlet portion and a second air inlet portion, the first air inlet portion surrounds the second air inlet portion; A switching device is provided on the air duct housing assembly and comprises a movable switching member for controlling the wind speed flowing through the first air inlet portion.

2. The clothes processing device according to claim 1, characterized in that: The first extension portion includes an end wall and a peripheral wall, the end wall is arranged opposite to the clothing access opening, the peripheral wall surrounds the end wall, the first air inlet portion is arranged on the peripheral wall, and the second air inlet portion is arranged on the end wall.

3. The clothes processing device according to claim 2, characterized in that: The peripheral wall gradually extends outwards in a direction close to the clothing taking and placing opening.

4. The clothes processing device according to claim 1, characterized in that: The first extension portion includes a first air inlet wall, and the first air inlet wall gradually extends from the inside to the outside along its radial direction toward the direction close to the clothing access opening. The first air inlet portion and the second air inlet portion are both arranged on the first air inlet wall.

5. The clothes processing device according to any one of claims 1 to 4, characterized in that: The air duct housing assembly further defines an air passage cavity, and the air passage cavity is connected between the first ventilation cavity and the second ventilation cavity; The switching element may be movably disposed in the air passage cavity, and is used to control the wind speed flowing through the first air inlet portion by changing the flow area of ​​the air passage cavity.

6. The clothes processing device according to claim 5, characterized in that: The switching element is used to control the on and off of a part of the air passage cavity. In a plane perpendicular to the clothing processing drum, the ratio of the flow width of the air passage cavity when the switching element is in an off state to the flow width of the air passage cavity when the switching element is in an on state is greater than 1 / 10.

7. The clothes processing device according to any one of claims 1 to 4, characterized in that: The air duct shell assembly includes a volute, which is suitable for defining the second ventilation cavity. The switching member is arranged opposite to the first air inlet portion and is located downstream of the volute tongue of the volute.

8. The clothes processing device according to claim 7, characterized in that: The volute comprises a first side wall and a second side wall, the first side wall is arranged opposite to the volute tongue and the second side wall is arranged adjacent to the volute tongue; Wherein, the switching member can be movably arranged in the middle of the first side wall and the second side wall and spaced apart from the first side wall and the second side wall; or, one end of the switching member is close to one of the first side wall and the second side wall and the other end is spaced apart from the other of the first side wall and the second side wall.

9. The clothes processing device according to claim 1, characterized in that: The first air inlet portion includes a plurality of first air inlet holes, the plurality of first air inlet holes are arranged at intervals in the circumferential direction of the first extension portion, and / or the flow area of ​​the first air inlet holes gradually expands along the airflow direction; And / or, the number of the first air inlet portion is one, or the number of the first air inlet portions is multiple and the multiple first air inlet portions are arranged axially in the first extension portion.

10. The clothes processing device according to claim 1, characterized in that: There are multiple second air inlets, which are arranged at intervals in the circumferential direction of a circle, and each of the second air inlets includes multiple second air inlet holes which are arranged in a radial direction of the circle in a spiral manner.

11. The clothes processing device according to claim 10, characterized in that: The first extension portion includes an end wall and a peripheral wall, the end wall is arranged opposite to the clothing access opening, the peripheral wall surrounds the end wall, the first air inlet portion is arranged on the peripheral wall, and the second air inlet portion is arranged on the end wall.

12. The clothes processing device according to claim 11, characterized in that: The end wall includes a first wall body, the first wall body extends from the outside to the inside in a direction close to the clothing access opening, and the second air inlet portion is arranged on the first wall body.

13. The clothes treating device according to claim 12, characterized in that: The end wall further includes a second wall body, wherein the first wall body is located at the outer periphery of the second wall body and connects the second wall body and the peripheral wall.

14. The clothes treating device according to claim 10, characterized in that: The first extension portion is provided with a vent, and the laundry processing tub further comprises: An air guide hood is arranged on the inner side of the first extension portion and defines an air passage cavity between the air guide hood and the first extension portion. The air guide hood is provided with a plurality of third outer air inlets arranged at circumferential intervals on a circle. The third outer air inlets connect the air passage cavity and the clothing processing cavity. A plurality of the second air inlets are located on the outer periphery of the air guide hood.

15. The clothes treating device according to claim 14, characterized in that: Each of the third outer air inlet portions comprises a plurality of third outer air inlet holes arranged at intervals in the radial direction along the circumference; And / or, the number of the plurality of third external air inlets and the plurality of the second air inlets are equal and their positions correspond one to one.

16. The clothes treating device according to claim 1, characterized in that: The air duct shell assembly also includes: A support plate, wherein the support plate defines the first ventilation cavity, and the support plate is provided with the first opening, the second opening, and the third opening, wherein the first opening and the first ventilation cavity are arranged opposite to each other in the thickness direction of the support plate, and the third opening is arranged on the cavity wall of the first ventilation cavity and communicates with the inside and outside of the first ventilation cavity; A volute, wherein the volute is arranged on the support plate and covers the second opening and the third opening, the volute and the support plate define the second ventilation cavity, the second ventilation cavity connects the second opening and the third opening, and the projection of the volute tongue of the volute on the support plate is located between the first opening and the second opening.

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