EP3988707A1

EP3988707A1 - Air inlet structure for laundry treatment apparatus, and laundry treatment apparatus

Info

Publication number: EP3988707A1
Application number: EP20826810.2A
Authority: EP
Inventors: Zhiqiang Zhao; Sheng Xu
Original assignee: Qingdao Haier Drum Washing Machine Co Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Haier Drum Washing Machine Co Ltd; Haier Smart Home Co Ltd
Priority date: 2019-06-20
Filing date: 2020-06-08
Publication date: 2022-04-27
Also published as: CN112111953B; WO2020253565A1; CN112111953A; EP3988707A4

Abstract

Disclosed is an air intake structure of a clothes treatment device. The clothes treatment device includes: an inner drum (1) forming a sealed container when a washing procedure is executed, wherein an air duct shaft (10) which is internally hollow and forms a channel is connected with the inner drum (1), an air cavity (9) wrapping the air duct shaft (10) is formed outside the inner drum (1), the air cavity (9) communicates with the interior of the inner drum (1) through the hollow channel in the air duct shaft (10), and the air cavity (9) is connected with an air duct (7) blowing a drying airflow.

Description

TECHNICAL FIELD

The present disclosure belongs to the technical field of washing machines, and particularly relates to a clothes treatment device provided with an inner drum capable of rotating and holding water, in particular to an air intake structure of the clothes treatment device with a drying function.

BACKGROUND

In the prior art, a drum washing machine generally includes an inner drum and an outer drum in a sleeved mode. The outer drum is sealed and configured to hold water, the inner drum is configured to hold clothes and rotate so as to beat and wash clothes, and meanwhile, dewatering holes are formed in the inner drum so that water in the outer drum can flow, through the dewatering holes, into the inner drum to soak the clothes in the inner drum. Water in the inner drum can flow out, through the dewatering holes, to enter the outer drum and water on the clothes in the inner drum can be discharged, through the dewatering holes, into the outer drum during high-speed rotation of the inner drum, and thus a purpose of washing the clothes is realized.
However, as the inner drum is sleeved with the outer drum, dirt is prone to being accumulated between the inner drum and the outer drum in a using process of the washing machine, and meanwhile, as the inner drum is sleeved with the outer drum, a user cannot clean an outer wall of the inner drum and an inner wall of the outer drum, consequently bacteria in the washing machine increase, and washing efficiency of the washing machine and cleanliness of washed clothes are lowered.
Meanwhile, in the above existing washing machine, as the inner drum is sleeved with the outer drum and a washing process of the washing machine is realized by beating and washing the clothes through rotation of the inner drum, a washing capacity of the washing machine is based on the inner drum, a using ratio of an inner space of the washing machine is low, and the washing capacity of the washing machine cannot be extended on the existing basis.
Given this, it is a hotspot to research and develop a washing machine in which an inner drum and an outer drum are integrated as one, the inner drum is arranged as a sealed container and is capable of holding water and the clothes and also rotating to beat and wash the clothes. As the washing machine is not provided with the outer drum, or the outer drum and a shell of the washing machine are integrated, the inner drum of the washing machine can be extended so as to increase the washing capacity of the washing machine.
In the meantime, the above washing machine is integrated with a drying function so as to perform drying treatment on the clothes, and thus the user directly enjoys using experience of clothes drying. However, when the above washing machine is integrated with the drying function, an air duct cannot be integrated in a device and air cannot flow into the sealed rotating inner drum by means of any air intake structure in the prior art. Therefore, how to design an air intake structure suitable for the above washing machine becomes an urgent problem to be solved.
In view of the above technical defects, the present application is provided.

SUMMARY

An objective of the present disclosure is to provide an air intake structure of a clothes treatment device to achieve a purpose of making air flow into an inner drum when the device is in a drying procedure and the inner drum is in a rotating state in order to overcome the defects in the prior art.
In order to solve the technical problem and achieve the technical effects, a basic design thought of the technical solution adopted by the present disclosure is:
an air intake structure of a clothes treatment device, the clothes treatment device includes an inner drum forming a sealed container when a washing procedure is executed, wherein an air duct shaft which is internally hollow and forms a channel is connected with the inner drum, an air cavity wrapping the air duct shaft is formed outside the inner drum, the air cavity communicates with an interior of the inner drum through the hollow channel in the air duct shaft, and the air cavity is connected with the air duct blowing a drying airflow.
Furthermore, the air duct shaft is parallel to an axis of the inner drum, one end of the hollow channel in the air duct shaft communicates with the inner drum, and other end of the hollow channel in the air duct shaft is a sealed end; and at least an opening is arranged in the air duct shaft at its radial direction, and the opening communicates the hollow channel in the air duct shaft communicate with the air cavity.
Furthermore, the air duct shaft is coaxial with the inner drum, a plurality of openings are arranged at intervals of angles in at least one cross section of the air duct shaft, preferably, the plurality of openings are symmetrically distributed in a cross section of the air duct shaft at intervals of equal angles.
Furthermore, one end of the inner drum is open, and the other end of the inner drum is covered with an inner drum bottom, the air duct shaft is of a barrel-shaped structure coaxial with the inner drum, one end of the barrel-shaped air duct shaft is connected with an outer side of the inner drum bottom, and the other end of the barrel-shaped air duct shaft extends in a direction far away from the inner drum.
Furthermore, a cover located on an outer side of the inner drum bottom is arranged on the outer drum and/or a shell of the clothes treatment device, the cover is in a barrel shape with one side open and the other side sealed, and the open side of the cover is in contact with the inner drum bottom in a fit mode; the air cavity is defined by an internal space of the cover, the air duct shaft is located in the air cavity inside the cover, the air duct shaft is coaxial with the cover, and a circle of annular gap is formed between an outer surrounding wall of the air duct shaft and an inner surrounding wall of the cover; and preferably, the sealed side of the cover is fit with an extending end of the barrel-shaped air duct shaft in a sealed mode, and the extending end of the air duct shaft is sealed.
Furthermore, the outer side of the inner drum bottom is further connected with a motor shaft arranged coaxially, the motor shaft is arranged in the hollow channel in the air duct shaft, the other end of the motor shaft penetrates through the sealed end of the air duct shaft to be directly or indirectly connected with a rotor of a driving motor of a washing machine; an outer wall of the motor shaft and an inner wall of the air duct shaft are spaced by a gap, and the gap communicates with the air cavity and the interior of the inner drum respectively so that the gap can form a channel through which the drying airflow passes; and preferably, a position, penetrating through the sealed end of the air duct shaft, of the motor shaft is provided with a dynamic seal.
Furthermore, the motor shaft is composed of a sleeve with a hollow runner inside, one end of the hollow runner in the motor shaft communicates with the interior of the inner drum, and the other end of the hollow runner in the motor shaft communicates with a water inlet structure of the washing machine.
Another objective of the present disclosure is to provide a clothes treatment device which is provided with the above air intake structure.
Furthermore, a fan is arranged in an air duct, so that an airflow flowing to an air duct air inlet is formed in the air duct; and preferably, a heating apparatus for heating the airflow flowing through is further arranged in the air duct.
Furthermore, an inner drum is sleeved with an outer drum, one end of the air duct communicates with the outer drum, and the other end of the air duct communicates with an air cavity; at least one hole communicating with the outer drum is formed in the inner drum, and a valve which controls opening and closing is installed at each hole; preferably, the valve installed at each hole is a centrifugal valve, wherein a valve element of the centrifugal valve opens the corresponding hole under the action of a centrifugal force after a rotating speed of the inner drum reaches a set value; and preferably, a condensing apparatus for performing air-liquid separation on air flowing through is disposed in the air duct.
Furthermore, an electromagnetic heating module for heating the inner drum is installed on the outer drum.
Compared with a washing machine in the prior art, the washing machine of the present disclosure has the following beneficial effects:
Through the above arrangement, the drying airflow is subjected to uniformly distributed treatment through the air cavity and then flows into the sealed inner drum through the hollow channel in the air duct shaft, and thus a purpose of continuously and stably blowing the drying airflow into the inner drum is realized. Meanwhile, by independently arranging the air duct shaft, a diameter of the channel in the air duct shaft is increased properly so that an effect of reducing a wind resistance coefficient flowing into the inner drum can be realized, drying efficiency is improved, and working power of the fan during running is reduced. Besides, through the above arrangement, the air duct shaft rotates along with the inner drum and the air cavity does not move relative to the inner drum, so that the air duct communicates with the air intake air duct shaft arranged on the rotating inner drum through the air cavity, and an effect of making air flow into the rotating inner drum is realized.
Meanwhile, the present disclosure is simple in structure, has remarkable effects and is suitable for being applied and popularized.
In order to make a design thought of the technical solution of the present disclosure clearer and help to further understand its beneficial effects, part of specific implementations of the present disclosure are described in detail below with reference to accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

Accompanying drawings, which constitute a part of the present disclosure, serve to provide further understanding of the present disclosure, and exemplary embodiments and their description of the present disclosure serve to explain the present disclosure and do not constitute an inappropriate limitation on the present disclosure. Apparently, the drawings in the following description are only some embodiments, and those ordinarily skilled in the art can obtain other drawings according to these drawings without creative efforts. In the drawings:
Fig. 1 to Fig. 2 are schematic structural diagrams of a washing machine in an embodiment of the present disclosure.
Reference numbers in the drawings: 1, inner drum, 2, shell, 3, inner drum supporting piece, 4, door cover, 5, driving motor, 6, electromagnetic heating module, 7, air duct, 8, lifting rib, 9, air cavity, 10, air duct shaft, 11, motor shaft, 12, fan, 13, condensing apparatus, 14, opening, 101, inner drum opening, 102, inner drum bottom, 103, inner drum side wall.
It needs to be noted that these drawings and the text description describe a concept of the present disclosure for those skilled in the art with reference to specific embodiments instead of being intended to limit a concept scope of the present disclosure in any way.

DETAILED DESCRIPTION

In order to make objectives, technical solution and advantages of embodiments of the present disclosure clearer, the technical solution in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present disclosure, and the following embodiments serve to describe the present disclosure instead of being intended to limit the scope of the present disclosure.
It needs to be noted that in the description of the present disclosure, directions or position relations indicated by terms "up", "down", "front", "back", "left", "right", "vertical", "inner", "outer" and the like are based on directions or position relations shown in the drawings, only serve to conveniently describe the present disclosure and simplify the description rather than indicate or imply that indicated apparatuses or elements must have specific directions or be composed and operated in the specific directions and therefore cannot be constructed as limiting the present disclosure.
It needs to be noted that in the description of the present disclosure, unless otherwise clearly specified and limited, terms "install", "connect" and "joint" should be understood in a broad sense, for example, it may be fixed connection, or detachable connection, or integrated connection, or mechanical connection, or electrical connection, or direct connection, or indirect connection through an intermediate medium. Those ordinarily skilled in the art can understood specific meanings of the above terms in the present disclosure according to specific conditions.
As shown in Fig. 1 to Fig. 2, an embodiment of the present disclosure introduces a clothes treatment device. The clothes treatment device includes a shell 2, an inner drum 1 is arranged in the shell 2, an axis of the inner drum 1 extends horizontally, or inclined downwards gradually from front to rear. An inner drum opening 101 which is arranged open is formed in a front end of the inner drum 1, an inner drum bottom 102 which is sealed is formed in a rear end of the inner drum 1, an inner drum side wall 103 connects the inner drum opening 101 with the inner drum bottom 102 so to form the inner drum 1. Normally-open holes are not provided in a drum wall of the inner drum 1 so that an interior of the inner drum 1 forms a sealed container with only a front being open in the washing process. Meanwhile, a door cover 4 which is capable of being opened outwards is installed at a front end of the shell 2 of the clothes treatment device, so that a purpose of closing the inner drum opening 101 after the door cover 4 is closed and putting clothes into the inner drum 1 from the inner drum opening 101 when the door cover 4 is opened is realized. The rear end of the inner drum 1 is installed in the shell 2 of the clothes treatment device through an inner drum supporting piece, and the inner drum supporting piece is coaxial with the rear end of the inner drum 1. An upper end and a lower end of the inner drum supporting piece are bent towards the front end of the inner drum 1 respectively, bent portions at least extend to the middle of the inner drum 1, and an upper bent portion and a lower bent portion are connected with the shell 2 of the clothes treatment device respectively through damping hanging springs and damping supporting rods so that a purpose of installing the inner drum supporting piece in the shell 2 of the clothes treatment device in a vibrating mode can be realized. In the meantime, a center of the inner drum bottom 102 is coaxial with a motor shaft of a driving motor 5 of the clothes treatment device, so that the inner drum 1 is driven to rotate, and the inner drum 1 and the driving motor 5 are both fixedly installed on the inner drum supporting piece. Preferably, the inner drum bottom 102 and the driving motor 5 are arranged on the two sides of the inner drum supporting piece respectively, the driving motor 5 is fixedly connected with the inner drum supporting piece, the motor shaft 11 of the driving motor 5 penetrates through the inner drum supporting piece through a bearing to be fixedly connected with the inner drum bottom 102, and the motor shaft of 11 of the driving motor 5 can rotate relative to the inner drum supporting piece, so that a purpose that the inner drum 1 and the driving motor 5 are installed on the inner drum supporting piece and the inner drum 1 is enabled to rotate independently under the action of the driving motor 5 to wash the clothes inside is realized. Preferably, the motor shaft 11 of the driving motor 5 directly forms an inner drum shaft to be coaxially and fixedly connected with the inner drum bottom 102 of the inner drum 1.
Besides, the clothes treatment device in the embodiment of the present disclosure may be any clothes treatment device which has a door cover to close the inner drum opening 101 so as to make an inner drum form a sealed container in the prior art, so that when the clothes treatment device executes a dewatering procedure, the inner drum 1 is controlled to rotate at a high speed, then water separated from the clothes in the inner drum is smoothly discharged out of the inner drum, and a purpose of normally executing the dewatering procedure by the clothes treatment device with the holeless inner drum is realized. Therefore, the clothes treatment device in the embodiment of the present disclosure is not limited to a structure in the drawings, for example, the clothes treatment device may be an existing ordinary clothes treatment device which only needs to be changed by arranging the inner drum 1 of the clothes treatment device as free of dewatering holes and closing the inner drum opening 101 by the door cover 4 to form the sealed container. Preferably, in the embodiment of the present disclosure, in order to realize an effect of heating washing water in the inner drum 1, the electromagnetic heating module 6 is arranged on a washing machine and performs electromagnetic heating on the inner drum made of a metal material in a non-contact mode, so that a temperature of the washing water in the inner drum 1 increases and a washing effect on the clothes is improved.
Meanwhile, the inner drum 1 is arranged to form the sealed container after being closed by the door cover during washing of the clothes treatment device, so that the clothes makes contact with only the washing water in the sealed inner drum in the washing process, a situation that washing water between the inner drum and the outer drum flows into the inner drum to contaminate the clothes is avoided, washing cleanliness of the clothes treatment device is greatly improved, and a situation that the clothes are not completely washed by the clothes treatment device due to contamination by the washing water between the inner drum and the outer drum is avoided.
In the embodiment of the present disclosure, in order to discharge water separated from the clothes in the inner drum 1 of the clothes treatment device and realize normal washing with water sealed in the inner drum 1 in working process of the clothes treatment device, an arrangement is as follows.
Washing normally-closed holes are formed in the inner drum, so that the washing normally-closed holes are closed when a rotating speed of the inner drum 1 is lower than a set value during normal washing and rinsing of the inner drum, then the inner drum 1 directly forms a water holding drum containing washing and rinsing water, and the clothes are washed or rinsed with the washing or rinsing water reserved in the inner drum 1. When the inner drum 1 executes a dewatering and draining process, the rotating speed of the inner drum 1 is higher than the set value, the washing normally-closed holes are opened, and then the water in the inner drum can directly flow out through the washing normally-closed holes 6.
The washing normally-closed holes include: holes formed in the inner drum 1; and valves which controls opening and closing are installed at the holes. Preferably, the valves are centrifugal valves, so that valve elements of the centrifugal valves open under the action of the centrifugal force after the rotating speed of the inner drum 1 reaches the set value, and the valve elements of the centrifugal valves are restored to close the holes under the action of an external elastic force or self-action when the rotating speed of the inner drum 1 does not reach the set value. Preferably, in order to realize concealed arrangement of the centrifugal valves, at least one lifting rib 8 is arranged on an inner wall of the inner drum 1 and is hollow, a hole is formed in an inner drum side wall 103 where the lifting rib 8 is buckled correspondingly, the centrifugal valves are installed in a hollow portion in the lifting rib 8, and a through hole is formed in a surface of the lifting rib 8, so that the washing water in the inner drum 1 can flow into the lifting rib 8 and is then discharged through opened holes.
In the embodiment of the present disclosure, the clothes treatment device further has a drying function, an air duct 7 is installed in the shell 2 of the clothes treatment device, a fan 12 is arranged in the air duct 7, and thus an airflow flowing towards air duct air outlet is formed in the air duct 7.
In the embodiment of the present disclosure, a drying mode of the clothes treatment device may adopt a direct-discharging mode, an air inlet of the air duct 7 communicates with the outside atmosphere, a heating apparatus for heating the airflow flowing through is disposed in the air duct 7, thus outside air is drawn into the inner drum under the action of the fan 12, the airflow is heated when flowing through the heating apparatus, then the airflow blowing into the inner drum 1 is a high-temperature drying airflow, the high-temperature drying airflow acts on the clothes and is then discharged through the opened holes in the rotating inner drum 1, and clothes drying is completed (not shown in the drawings).
Alternatively, as shown in Fig. 2, the drying mode of the clothes treatment device adopts a circular drying mode, the inner drum supporting piece is arranged as the outer drum 3, the inner drum 1 is sleeved with the outer drum 3, and then the outer drum 3 forms a sealed container when the clothes treatment device runs in drying. The air inlet of the air duct 7 communicates with the outer drum 3, a condensing apparatus 13 which performs air-liquid separation on the airflow is disposed in the air duct 7, thus air in the outer drum 3 is drawn into the air duct under the action of the fan, and the airflow is subjected to air-liquid separation when flowing through the condensing apparatus to form a dry drying airflow; and the dry drying airflow is blown into the inner drum 1, acts on the clothes and is then discharged to the outer drum 3 through the opened holes in the rotating inner drum 1, and thus circular flowing is completed and the clothes in the inner drum 1 are dried along with flowing of a circular airflow.
Preferably, in order to improve the drying efficiency, the heating apparatus may be further arranged in the air duct 7 and performs heating treatment on the airflow flowing through the air duct, thus the drying airflow flowing into the inner drum is heated, and the drying efficiency of the clothes is improved; and more preferably, in order to improve heating efficiency, the heating apparatus is located in a position, downstream of the fan, in the air duct (not shown in the drawings).
In the embodiment of the present disclosure, in order to guarantee to make air flow into the rotating inner drum 1 while the clothes treatment device runs in drying, an arrangement is as follows: an air intake structure of the clothes treatment device, wherein the clothes treatment device includes an inner drum 1 forming the sealed contained when the washing procedure is executed. The inner drum 1 is connected with an air duct shaft 10 which is internally hollow and forms a channel, an air cavity 9 wrapping the air duct shaft is formed outside the inner drum 1, the hollow channel in the air duct shaft 10 communicates with the air cavity 9 and the interior of the inner drum 1 respectively, and the air cavity 9 is connected with the air outlet of the air duct 7 blowing the drying airflow.
Through the above arrangement, the drying airflow is subjected to uniformly distributed treatment through the air cavity and then flows into the sealed inner drum through the hollow channel in the air duct shaft, and thus a purpose of continuously and stably blowing the drying airflow into the inner drum is realized. Meanwhile, by independently arranging the air duct shaft, a diameter of the channel in the air duct shaft is increased properly so that an effect of reducing a wind resistance coefficient flowing into the inner drum can be realized, thus drying efficiency is improved, and working power of the fan during running is reduced.
In the embodiment of the present disclosure, the air duct shaft is parallel to an axis of the inner drum, one end of the hollow channel in the air duct shaft communicates with the inner drum, and other end of the hollow channel in the air duct shaft is airtight; and at least one opening is formed in the air duct shaft in its radial direction, and each opening makes the hollow channel in the air duct shaft communicate with the air cavity.
In the embodiment of the present disclosure, the air duct shaft 10 is coaxial with the inner drum 1, a plurality of openings 14 are formed in at least one cross section of the air duct shaft 10 at intervals of angles, preferably, the plurality of openings 14 are symmetrically distributed in a cross section of the air duct shaft at intervals of equal angles. More preferably, the plurality of openings 14 are distributed in a side wall of the air duct shaft 10 at intervals of equal angles, each of the openings 14 is in a square shape, and each of the square openings 14 makes the hollow channel in the air duct shaft 10 communicate with the air cavity 9.
In the embodiment of the present disclosure, one end of the inner drum 1 is open, and the other end of the inner drum 1 is covered with the inner drum bottom 102, and the air duct shaft 10 is arranged coaxially and protruding out of an outer side of the inner drum bottom 102. By making the air duct shaft coaxial with the inner drum, a center of gravity of the inner drum is guaranteed to be on the axis, and thus a purpose of stable running of the inner drum is realized.
In the embodiment of the present disclosure, the air duct shaft 10 is of a barrel-shaped structure coaxial with the inner drum 1, one end of the barrel-shaped air duct shaft 10 is connected with the outer side of the inner drum bottom 102, and the other end of the barrel-shaped air duct shaft extends in a direction far away from the inner drum 1. A cover located on the outer side of the inner drum bottom 102 is arranged on the outer drum 3 and/or the shell 2 of the clothes treatment device, the cover is in a barrel shape with one side open and the other side sealed, and the open side of the cover is in contact with the inner drum bottom 102 in a fit mode; and the air cavity 9 is defined by an internal space of the cover. Through the above arrangement, the air duct shaft rotates along with the inner drum, the cover defining the air cavity does not rotate along with the inner drum, and thus the purpose of making air flow into the rotating inner drum is realized.
Meanwhile, in the embodiment of the present disclosure, the air duct shaft 10 is located in the air cavity 9 in the cover and is coaxial with the cover, a circle of annular gap is formed between an outer surrounding wall of the air duct shaft 10 and an inner surrounding wall of the cover, thus intake airflow flowing into the air cavity is uniformly distributed through the annular gap and then flows into the radial openings of the rotating air duct shaft, and an effect of making air uniformly flow into the inner drum is realized. Preferably, the sealed side of the cover is in sealed fit with the extending end of the barrel-shaped air duct shaft, the extending end of the air duct shaft is airtight, and thus the inside and the outside of the air duct shaft communicate only through the radial openings.
In the embodiment of the present disclosure, the outer side of the inner drum bottom 102 is further connected with the motor shaft 11 coaxially arranged, the motor shaft 11 is arranged in the hollow channel in the air duct shaft 10, the other end of the motor shaft 11 penetrates through the sealed end of the air duct shaft 10 to be directly or indirectly connected with a rotor of the driving motor 5 of the washing machine, an outer wall of the motor shaft 11 and an inner wall of the air duct shaft 10 are spaced by a gap, and the gap communicates with the air cavity 9 and the interior of the inner drum 1 respectively, and thus the gap forms a channel through which the drying airflow flows. Preferably, a position, penetrating through the sealed end of the air duct shaft 10, of the motor shaft 11 is provided with a dynamic seal, so that it is guaranteed that the airflow blowing into the air cavity does not flow out from penetrating-out positions of the motor shaft, and airtightness of the circular air duct is improved. More preferably, the other end of the motor shaft 11 sequentially penetrates through the sealed end of the air duct shaft 10 and the air cavity 9, a penetrating-out position of the motor shaft 11 penetrating through the air duct shaft 10 and a penetrating-out position of the motor shaft 11 penetrating through the air cavity 9 are provided with dynamic seals respectively, so that relative isolation of the interior of the air cavity is guaranteed.
In the embodiment of the present disclosure, the motor shaft 11 is composed of a sleeve with a hollow runner inside, one end of the hollow runner in the motor shaft 11 communicates with the interior of the inner drum 1, and the other end of the hollow runner in the motor shaft communicates with a water inlet structure of the washing machine, so that an effect that water can enter the inner drum of the washing machine from the hollow motor shaft is realized.
In the embodiment of the present disclosure, in order to realize effects that the motor shaft 11 and the air duct shaft 10 are connected with the inner drum bottom at the same time, the motor shaft 11 is internally hollow to enable water to enter the inner drum 1, and the air duct shaft 10 is internally hollow to enable the drying airflow to enter the inner drum 1, a through hole which is coaxial with and opposite to and communicates with the hollow runner of the motor shaft 11 may be formed in a center of the inner drum bottom 102, and a plurality of hollow-out holes which are distributed at intervals and communicate with the gap between the outer wall of the motor shaft 11 and the inner wall of the air duct shaft 10 are distributed on the periphery of the through hole.
The above description is only preferred embodiments of the present disclosure and do not limit the present disclosure in any form. Although the present disclosure is already disclosed in the above preferred embodiments but not limited by the above. Any person skilled in the art and knowing the present patent very well can, without departing from the scope of the technical solution of the present disclosure, make some changes or modifications as equivalent changed embodiments through the provided technical contents, and any simple changes, equivalent changes and modifications made for the above embodiments according to the technical essence of the present disclosure without departing from the contents of the technical solution of the present disclosure fall within the scope of the solution of the present disclosure.

Claims

An air intake structure of a clothes treatment device, wherein the clothes treatment device comprises an inner drum forming a sealed container when a washing procedure is executed, characterized in that an air duct shaft with a hollow channel inside is connected with the inner drum, an air cavity wrapping the air duct shaft is formed outside the inner drum, the air cavity communicates with an interior of the inner drum through the hollow channel in the air duct shaft, and the air cavity is connected with an air duct blowing a drying airflow.
The air intake structure of the clothes treatment device according to claim 1, characterized in that the air duct shaft is parallel to an axis of the inner drum, one end of the hollow channel in the air duct shaft communicates with the inner drum, and an other end of the hollow channel in the air duct shaft is a sealed end; and at least an opening is arranged in the air duct shaft at its radial direction, and the opening communicates the hollow channel in the air duct shaft communicate with the air cavity.
The air intake structure of the clothes treatment device according to claim 2, characterized in that the air duct shaft is coaxial with the inner drum, a plurality of openings are arranged at intervals of angles in at least a cross section of the air duct shaft; and
preferably, the plurality of openings are symmetrically distributed in the cross section of the air duct shaft at intervals of equal angles.
The air intake structure of the clothes treatment device according to claim 3, characterized in that the air duct shaft is of a barrel-shaped structure arranged on an outer side of an inner drum bottom and arranged coaxially, a cover located on the outer side of the inner drum bottom is arranged on the outer drum and/or a shell of the clothes treatment device, the air cavity is defined by an internal space of the cover, the air duct shaft is located in the air cavity in the cover and is coaxial with the cover, and a circle of annular gap is formed between an outer surrounding wall of the air duct shaft and an inner surrounding wall of the cover.
The air intake structure of the clothes treatment device according to claim 4, characterized in that the outer side of the inner drum bottom is connected with a motor shaft arranged coaxially, the motor shaft is arranged in the hollow channel in the air duct shaft, another end of the motor shaft penetrates through the sealed end of the air duct shaft to be directly or indirectly connected with a rotor of a driving motor of a washing machine;
an outer wall of the motor shaft and an inner wall of the air duct shaft are spaced by a gap, and the gap communicates with the air cavity and the interior of the inner drum respectively so that the gap can form a channel through which the drying airflow passes; and

preferably, a position, penetrating through the sealed end of the air duct shaft, of the motor shaft is provided with a dynamic seal.
The air intake structure of the clothes treatment device according to claim 5, characterized in that the motor shaft is composed of a sleeve with a hollow runner inside, one end of the hollow runner in the motor shaft communicates with the interior of the inner drum, and another end of the hollow runner in the motor shaft communicates with a water inlet structure of the washing machine.
A clothes treatment device, characterized by being provided with the air intake structure according to any of claims 1-7.
The clothes treatment device according to claim 7, characterized in that a fan is arranged in the air duct, so that an airflow flowing to an air duct air inlet is formed in the air duct; and
preferably, a heating apparatus for heating the airflow flowing through is arranged in the air duct.
The clothes treatment device according to claim 8, characterized in that the inner drum is sleeved with an outer drum, one end of the air duct communicates with the outer drum, and another end of the air duct communicates with the air cavity; at least a hole communicating with the outer drum is formed in the inner drum, and a valve which controls opening and closing is installed at the hole;
preferably, the valve installed at the hole is a centrifugal valve, a valve element of the centrifugal valve opens the hole under an action of a centrifugal force after a rotating speed of the inner drum reaches a set value; and

preferably, a condensing apparatus for performing air-liquid separation on air flowing through is disposed in the air duct.
The clothes treatment device according to claim 9, characterized in that an electromagnetic heating module for heating the inner drum is installed on the outer drum.