CN112726111A

CN112726111A - Clothes treatment device and drying judgment method thereof

Info

Publication number: CN112726111A
Application number: CN201910976802.9A
Authority: CN
Inventors: 李以民; 刘海涛; 许升; 赵志强
Original assignee: Qingdao Haier Washing Machine Co Ltd; Qingdao Haier Smart Technology R&D Co Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Haier Washing Machine Co Ltd; Qingdao Haier Smart Technology R&D Co Ltd; Haier Smart Home Co Ltd
Priority date: 2019-10-15
Filing date: 2019-10-15
Publication date: 2021-04-30
Anticipated expiration: 2039-10-15
Also published as: CN112726111B

Abstract

The invention discloses a clothes treatment device and a drying judgment method thereof, wherein the clothes treatment device comprises a drying device; an inner cylinder for sealing the water container when executing the washing program, and an air duct with two ends connected with the inner cylinder respectively to form a circulation air path; and a humidity sensor for detecting the humidity of the circulating air flow is arranged on the circulating air path and used for judging the drying completion node of the clothes treatment device. The humidity sensor is arranged in the circulating air path, so that the humidity of circulating air flow flowing through the circulating air path is detected, the environment humidity in the inner cylinder is indirectly obtained, and the remarkable technical progress of accurately judging whether the drying of the load in the inner cylinder is finished is achieved. In addition, through carrying out humidity detection to circulating air to indirectly detect the inside environment humidity of inner tube, and then reach the effect that whether accurate judgement inner tube in the load dried and finishes. Meanwhile, the invention has simple structure, simple method and obvious effect and is suitable for popularization and use.

Description

Clothes treatment device and drying judgment method thereof

Technical Field

The invention belongs to the field of washing machines, and particularly relates to a clothes treatment device and a drying method thereof.

Background

Washing machines are largely classified into pulsator type, pulsator type and drum type washing machines. The pulsator type washing machine performs a washing operation by rotating a pulsator at the center of a washing tub left and right. The agitator type washing machine performs a washing operation using a frictional force between water current and laundry by rotating a rotary blade at the center of a washing tub in the left-right direction. The drum type washing machine performs a washing operation by beating laundry by rotating a drum.

An outer tub and an inner tub are provided in a cabinet of a washing machine, and the inner tub is an important part of washing, and generally, a hole is provided in a tub wall for introducing washing water into the inner tub or for dehydrating laundry in the inner tub. A large amount of dirt and bacteria are bred between the inner barrel and the outer barrel due to the long-time flowing and accumulation of the washing water, secondary pollution is generated to clothes, and the washing machine is not beneficial to the health of a human body, so that the washing machine with the imporous inner barrel is provided.

Along with the improvement of the living standard and the taste of residents, the existing washing machine not only needs to meet the washing requirement, but also needs to meet the drying requirement after the clothes are washed, so how to dry the washing machine provided with the non-porous inner cylinder is set as a hotspot for research and development.

The technical scheme introduces a water-saving drum washing machine, which comprises an outer drum, an inner drum arranged in the outer drum and a drying air path communicated with the inner drum, wherein the inner drum and the outer drum are coaxially arranged on a central shaft, the inner drum is a non-porous inner drum, and a plurality of lifting devices are arranged on the inner wall of an inner hole; the drying air path and the lifting device are respectively communicated with the hollow structure, and the lifting device is provided with a plurality of water outlets. When the drying program is started, the drying fan is started to uniformly blow hot air to the clothes through the drying air path, the hollow structure, the connecting pipeline, the lifting device and the water outlet, but the drainage pipeline and the drying air path in the patent are both connected with the hollow structure, the corresponding program is switched through the electromagnetic valve, the electromagnetic valve needs to be switched continuously when the drying air enters and exits the inner cylinder, and air inlet and air exhaust cannot be carried out simultaneously, which is not beneficial to quick drying of the clothes.

However, the prior art does not disclose how to determine the load drying end time node for the laundry processing apparatus with drying function.

The present invention has been made in view of this situation.

Disclosure of Invention

The technical problem to be solved by the present invention is to overcome the defects of the prior art, and provide a clothes treatment device and a drying judgment method thereof, so as to achieve the purpose of accurately judging the drying end time node of the clothes treatment device.

In order to solve the technical problems, the invention adopts the technical scheme that:

a laundry treating apparatus, comprising; an inner cylinder for sealing the water container when executing the washing program, and an air duct with two ends connected with the inner cylinder respectively to form a circulation air path; and a humidity sensor for detecting the humidity of the circulating air flow is arranged on the circulating air path and used for judging the drying completion node of the clothes treatment device.

Further, the inner cylinder is sleeved in the outer cylinder, the inner cylinder is provided with air holes connected with the outer cylinder, and the air holes are provided with air vent valves for opening and closing the air holes; the two ends of the air duct are respectively communicated with the gap between the inner barrel and the outer barrel, and the humidity sensor is arranged in the air duct and/or the outer barrel. Preferably, the vent valve may be any valve body capable of controlling the opening and closing of the vent hole in the prior art, for example, the vent valve adopts the following mode: when the pressure difference between the two sides of the vent valve reaches a set value, the vent hole is opened, or when the pressure difference between the two sides of the vent valve does not reach the set value, the vent hole is closed by self elastic reset.

Further, the vent valve comprises a valve plate covering the vent hole, the valve plate is hermetically connected with the periphery of the vent hole, and a notch which is arranged in a penetrating manner and is opposite to the vent hole is formed in the valve plate; the valve plate is made of elastic materials and used for sealing the opening by utilizing the elasticity of the valve plate when the valve plate is reset.

Furthermore, a fan which provides driving force for circulating airflow to flow along a single direction is arranged in the air duct, and the humidity sensor is arranged at the air inlet end of the air duct at the upstream of the fan.

Further, the air inlet end of the air duct is communicated with the bottom of the cylinder bottom side of the outer cylinder, and the air outlet end of the air duct is communicated with the top of the cylinder opening side of the outer cylinder.

Further, a drying device for at least dehumidifying the flowing air flow is arranged in the air duct, for example: a heat pump system; a condensing module, a heating module, etc.; the humidity sensor is arranged at the air inlet end of the air duct at the upstream of the drying device.

Further, an inner cylinder cover which correspondingly seals the cylinder opening of the inner cylinder when the clothes processing device executes a washing program is arranged at the cylinder opening of the inner cylinder, an air inlet which is communicated with the air outlet end of the air duct is arranged on the inner cylinder cover, and a first one-way vent valve is arranged at the air inlet; the bottom side of the inner cylinder is provided with an air outlet communicated with the air inlet end of the air duct, and the air outlet is provided with a second one-way vent valve.

Furthermore, a plurality of air inlets are arranged on the side of the opening of the inner barrel, a plurality of air outlets are arranged on the side of the bottom of the inner barrel, a first one-way vent valve is correspondingly arranged at each air inlet, and a second one-way vent valve is correspondingly arranged at each air outlet.

Furthermore, all the air inlets and all the air outlets are symmetrically arranged on the inner cylinder axis.

Furthermore, a first one-way vent valve which can only make use of pressure difference between two sides to make the airflow flow into the inner cylinder from the outer cylinder is arranged at an air inlet at the opening side of the inner cylinder, and a second one-way vent valve which can only make use of pressure difference between two sides to make the airflow flow out of the inner cylinder to the outer cylinder is arranged at an air outlet at the bottom side of the inner cylinder.

Furthermore, the first one-way vent valve comprises a first valve plate correspondingly covering the air inlet, the first valve plate is provided with a protruding part protruding towards the inner part of the inner cylinder, and the valve plate is provided with a notch which extends along the radial direction of the valve plate at the protruding part and penetrates through the valve plate; the second one-way breather valve is including corresponding the second valve block that covers the gas outlet, and the second valve block has the bulge to the outside convex of inner tube, is equipped with on the second valve block along the opening that the valve block radially extended, run through the valve block in bulge department.

Furthermore, a first humidity sensor is arranged at the air outlet end of the air duct or at the gap between the opening of the outer barrel and the opening of the inner barrel, and a second humidity sensor is arranged at the air inlet end of the air duct or at the gap between the bottom of the outer barrel and the bottom of the inner barrel.

Further, the inner cylinder is coaxially sleeved in the outer cylinder, a gap is formed between the cylinder opening of the inner cylinder and the cylinder opening of the outer cylinder to form an air inlet cavity, a gap is formed between the cylinder bottom of the outer cylinder and the cylinder bottom of the inner cylinder to form an air outlet cavity, the air inlet end of the air channel and the air outlet at the bottom side of the inner cylinder are communicated with the air outlet cavity, and the air outlet end of the air channel and the air inlet at the cylinder opening side of the inner cylinder are communicated with the air inlet; the humidity sensor is arranged at the air inlet end of the air duct, and the position where the air inlet end of the air duct is communicated with the outer barrel is arranged in a staggered manner with the axis of the outer barrel and the gaps between the wall of the inner barrel and the wall of the outer barrel; preferably, the humidity sensor is located at a lower corner of the air duct.

Further preferably, be equipped with the structure of keeping out the wind that blocks the circulation air current refluence on the circulation wind path that wind channel and urceolus formed, the structure of keeping out the wind is preferred to be set up on the sealing gasket, links to each other through the sealed pad of round between urceolus nozzle and the casing opening of clothing processing apparatus and forms the passageway, and wind channel air-out end is linked together through the clearance between passageway and inner tube nozzle and the urceolus nozzle, keeps off the muscle that is equipped with at least round between wind channel air-out end and the inner tube on the sealed pad, keeps off muscle one end and links to each other with sealed pad, the other end is in free.

The invention also introduces a drying judgment method applied to the clothes treatment device, when the clothes treatment device utilizes the circulating airflow between the inner cylinder and the air duct to dry the load held in the inner cylinder, the humidity of the circulating airflow is detected, and the completion of the drying of the load is judged after the humidity detection value reaches a set value.

Further, after the humidity detection value of the circulating airflow is smaller than a set value, judging that the drying of the load in the inner cylinder is finished; preferably, when the humidity detection value of the circulating air flow is smaller than the minimum set value, it is determined that the laundry is over-dried, and the drying is stopped and a prompt is issued.

Further, after the humidity detection value of the circulating air flow is larger than the maximum set value, the humidity sensor is judged to be wrapped by the condensed water in the air duct and to be invalid, and the drying program is continued until the humidity detection value is smaller than the maximum set value, and then the detection value is used for judging whether the load drying is finished.

Further, after the clothes processing device starts to execute the drying program, timing is carried out until the drying program continues to execute the set time and is in the middle of the drying program, the circulating air flow is detected, and whether the drying of the load is finished or not is judged by comparing the detected value with the set value.

Further, the humidity in the inner cylinder is checked at certain intervals, and when the difference between two adjacent humidity detection values is smaller than a set difference value, the completion of the drying of the load in the inner cylinder is judged.

And further, respectively detecting the humidity of the air flow before the circulating air flow flows into the inner cylinder and the humidity of the air flow after the circulating air flow flows out of the inner cylinder, and judging that the drying of the load in the inner cylinder is finished after the difference between the two detection values is smaller than a set difference value.

Further, in the drying procedure, the air in the inner cylinder flows through the air duct and then flows back into the inner cylinder to form a circulating air flow, and the circulating air flow is at least subjected to dehumidification treatment when flowing through the air duct and is used for discharging water vapor contained in the circulating air flow and reducing the humidity of the circulating air flow.

Furthermore, the circulating air flow is heated when flowing through the air duct, so that the temperature of the circulating air flow is increased, and the drying of the load in the inner barrel is accelerated.

After the technical scheme is adopted, compared with the prior art, the invention has the following beneficial effects.

The humidity sensor is arranged in the circulating air path, so that the humidity of circulating air flow flowing through the circulating air path is detected, the environment humidity in the inner cylinder is indirectly obtained, and the remarkable technical progress of accurately judging whether the drying of the load in the inner cylinder is finished is achieved. Simultaneously, through carrying out humidity detection to circulating air to indirectly detect the inside environment humidity of inner tube, and then reach the effect that whether the load finishes of drying in the accurate judgement inner tube.

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention, are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without limiting the invention to the right. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:

FIG. 1 is a schematic view illustrating a structure of a laundry treating apparatus according to an embodiment of the present invention;

FIG. 2 is a schematic view illustrating a structure of a laundry treating apparatus according to another embodiment of the present invention;

FIG. 3 is a schematic view of the structure of a breather valve in an embodiment of the invention;

FIG. 4 is a schematic cross-sectional structural view of a breather valve in an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a valve plate of the breather valve in the embodiment of the invention.

It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate it by a person skilled in the art with reference to specific embodiments.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and the following embodiments are used for illustrating the present invention and are not intended to limit the scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1 to 2, an embodiment of the present invention introduces a clothes treating apparatus, which includes an inner tub 3 for independently containing washing water when washing clothes, so as to avoid the problem that the washing water is polluted by dirt and bacteria accumulated outside the tub due to the cross flow of the washing water inside and outside the inner tub 3 during the washing process of the washing machine; and the drying system is used for drying the load in the inner barrel to obtain dried clothes and the like, so that the effect of improving the life quality of a user is achieved.

In the embodiment of the invention, the drying system comprises an air duct 4, two ends of which are communicated with the inner cylinder 3 to form a circulating air path; a fan 40 is installed in the air duct 4, so that a circulating air flow flowing along a single direction is formed in a circulating air path formed by the inner cylinder 3 and the air duct 4; a dehumidifying device 41 for dehumidifying the circulating air flow flowing through is further installed in the air duct 4, so that the effects of reducing the humidity of the air flow in the circulating air duct and drying the load in the inner cylinder 3 are achieved; meanwhile, in the embodiment of the present invention, in order to increase the drying rate of the load in the inner cylinder 3 and accelerate the vaporization of the water adsorbed in the load, a heating device 42 may be disposed in the air duct 4 to heat the circulating airflow flowing through, so as to achieve the effects of increasing the temperature in the inner cylinder 3 and heating the load in the inner cylinder 3 to accelerate the drying rate.

In the embodiment of the invention, when the clothes processing device executes a drying program, the drying system is controlled to be started, the fan 10 is used for enabling the air duct 4 and the inner cylinder 3 to form a circulating air flow in a circulating air path, the circulating air flow is fully contacted with a load in the inner cylinder 3 when flowing through the inner cylinder 3, the circulating air flow carries moisture in the load and then becomes damp and hot drying air, and the damp and hot drying air flows out of the inner cylinder 3 and flows into the air duct 4; after the damp and hot drying air flows into the air duct 4, the damp and hot drying air is contacted with the dehumidifying device 41 in the air duct 4, so that the damp and hot drying air is changed into drying air and then flows back into the inner barrel 3, and the damp and hot drying air continuously flows in a reciprocating and circulating manner. Preferably, in order to increase the drying rate, a heating device 42 may be additionally installed in the air duct 4, so that the drying air flow dehumidified by the dehumidifying device 41 contacts with the heating device 42, and is heated to form a high-temperature drying air flow, and then flows back into the air duct.

In the embodiment of the present invention, the drying system may be any existing device that can dehumidify and dry the clothes, for example: a heat pump system; the heat pump system is formed by sequentially connecting a compressor, an evaporation radiator, a throttling device and a condensation heat absorber end to form a circulating flow channel for a refrigerant medium circulating flow channel; install the condensation heat absorber and the evaporation radiator that set gradually along the circulating air flow direction of flow in clothing processing apparatus's wind channel 4 for the air current that flows out from inner tube 3 carries out the heat exchange with the condensation heat absorber earlier and carries out the condensation with its water vapor that contains and separate out, carry out the heat exchange with the evaporation radiator again and heat and form high temperature drying air current, flow back into the inner tube 3 with high temperature drying air at last, in order to realize reducing humidity in the inner tube, promote temperature in the inner tube 3, and then reach the effect of carrying out drying process to the load in the inner tube 3. Therefore, the effect of drying the load in the inner cylinder is achieved by forming the condensation heat absorber of the heat pump system into the dehumidifying device 41 and forming the evaporation heat radiator into the heating device 42.

In the embodiment of the present invention, in order to ensure that the air duct 4 which is installed in the casing 1 of the clothes processing device and is fixed in the casing 1 and can rotate around the axis is connected, the following settings are performed:

the clothes treatment device comprises a shell 1, wherein an outer cylinder 2 is arranged in the shell 1, and the upper part and the lower part of the outer cylinder 2 are respectively connected with the shell 1 of the washing machine through a damping suspension spring and a damping support rod so as to realize the purpose that the outer cylinder 2 can be arranged in the shell 1 of the washing machine in a vibrating manner. An inner cylinder 3 which is coaxially arranged is sleeved in the outer cylinder 2; the outer cylinder 2 and the inner cylinder 3 are respectively composed of a cylindrical outer cylinder side wall 202 and a cylindrical inner cylinder side wall 302, the corresponding ends of the same side of the outer cylinder 2 and the inner cylinder 3 are provided with openings which are oppositely arranged so as to respectively form an inner cylinder opening 301 and an outer cylinder opening 201, and the corresponding ends of the other side are hermetically arranged so as to respectively form an inner cylinder bottom 303 and an outer cylinder bottom 203. Meanwhile, the front end of the washing machine shell 1 is provided with a machine door 16 which can be opened outwards, so that the outer cylinder opening 201 can be correspondingly closed or opened by opening and closing the machine door 16; and an inner cylinder cover 17 which can be opened outwards is arranged on the inner cylinder 3, so that the inner cylinder opening 301 can be correspondingly closed or opened by opening and closing the inner cylinder cover 17. Thus, the inner cylinder 3 which can rotate relatively around the shaft and forms a closed water container during washing is installed in the outer cylinder 2. The two ends of the air duct 4 are respectively connected with the outer cylinder 2, and air holes communicated with the outer cylinder 2 are formed in the inner cylinder 3, and vent valves 5 are installed at the air holes and are used for opening the air holes by utilizing the pressure difference between two sides reaching a set value or closing the air holes by utilizing self elasticity reset when the pressure difference between two sides does not reach the set value, so that the purposes of forming a circulating air path between the air duct 4 and the inner cylinder 3 rotating around a shaft through the outer cylinder 2 and drying the load in the inner cylinder 3 are achieved.

In the embodiment of the invention, the center of the bottom 303 of the inner barrel is coaxially arranged with a motor shaft of a driving motor of the washing machine so as to drive the inner barrel 1 to rotate, and the inner barrel 1 and the driving motor are both fixedly arranged on the outer barrel 3. Preferably, the inner cylinder bottom 303 and the driving motor are respectively arranged at two sides of the outer cylinder bottom 203, the driving motor is fixedly connected with the outer cylinder 2, a motor shaft of the driving motor passes through the outer cylinder bottom 203 through a bearing and is coaxially and fixedly connected with the inner cylinder bottom 303, and a motor shaft of the driving motor can rotate relative to the outer cylinder 2, so that the purposes that the inner cylinder 3 and the driving motor are arranged on the outer cylinder 2 and the inner cylinder 3 can rotate to wash the internal clothes under the action of the driving motor alone are achieved. Preferably, a motor shaft of the driving motor directly forms an inner cylinder shaft, and the inner cylinder shaft is coaxially and fixedly connected with the inner cylinder bottom 303 of the inner cylinder 3.

As shown in fig. 1 to 2, in the embodiment of the present invention, a certain gap is provided between an inner cylinder opening 301 of the inner cylinder 3 and an outer cylinder opening 201 of the outer cylinder 2 to form an air inlet cavity 21, and a certain gap is provided between an inner cylinder bottom 303 of the inner cylinder 3 and an outer cylinder bottom 203 of the outer cylinder 2 to form an air outlet cavity 22; the air inlet end of the air duct 4 is connected with the air outlet cavity 22, and the air outlet end of the air duct 4 is connected with the air inlet cavity 21.

In the embodiment of the invention, one side of the opening 301 of the inner cylinder is provided with an air inlet which is communicated between the inner cylinder and the outer cylinder and the inner cylinder 3 and forms a ventilation opening, and the air inlet can be arranged on the inner cylinder 3 or the inner cylinder cover 17; preferably, in order to improve the intake air uniformity, an intake port is provided in the middle of the inner cylinder opening 301 side. The air inlet is provided with a first one-way vent valve 51 which can only make the air flow into the inner cylinder from the outer cylinder by using the pressure difference between two sides, so that the air inlet can be opened only in one direction, and the air flow at the air inlet cavity 21 between the inner cylinder and the outer cylinder can flow into the inner cylinder 3. In the embodiment of the invention, one side of the inner cylinder bottom 303 is provided with an air outlet which is communicated between the inner cylinder and the outer cylinder and the inner cylinder 3 and forms a ventilation port, and the air outlet is arranged on the inner cylinder bottom 303; preferably, in order to improve the uniform distribution of the outlet air, an air outlet is arranged in the middle of the inner cylinder bottom 303. The air outlet of the inner cylinder bottom 303 is provided with a second one-way vent valve 52 which can only utilize the pressure difference at two sides to make the air flow out from the inner cylinder to the outer cylinder, so that the air outlet can only be opened in one way and the air in the inner cylinder 3 can flow out to the air outlet cavity 22 between the inner cylinder and the outer cylinder.

In the embodiment of the present invention, in order to improve the uniformity of the flow of the circulating air flow, the following settings may be performed: a plurality of air inlets are arranged at the inner cylinder opening 301 side of the inner cylinder 3, a plurality of air outlets are arranged at the inner cylinder bottom 303 side of the inner cylinder 3, the first one-way vent valve 51 is correspondingly arranged at each air inlet, and the second one-way vent valve 52 is correspondingly arranged at each air outlet. Preferably, each air inlet and each air outlet are arranged symmetrically with respect to the axis of the inner barrel 3. Further preferably, a first air inlet is arranged at the center of the inner cylinder cover 17, and at least one circle of second air inlets distributed at intervals are arranged in the middle of the inner cylinder cover 17. Meanwhile, because the water inlet of the inner barrel 3 of the clothes treatment device can be arranged at the center of the inner barrel bottom 303 and flows into the inner barrel by using the hollow flow channel of the inner barrel shaft, the air outlets arranged at the inner barrel bottom 303 can be arranged at intervals along at least one concentric circle in the middle of the inner barrel bottom 303 and are staggered with the water inlet at the center of the inner barrel bottom 303.

In the embodiment of the present invention, the vent valve 5 disposed at the vent may be any structure that can achieve the corresponding sealing or opening of the vent by using the pressure difference between two sides and the elastic deformation thereof, for example, as follows: the air vent valve 5 comprises a valve plate covering the air vent, the valve plate is hermetically connected with the periphery of the air vent, and a notch which is arranged in a penetrating way and is opposite to the air vent is arranged on the valve plate; the valve plate is made of elastic materials and used for sealing the opening by utilizing the elasticity of the valve plate when the valve plate is reset.

Through installing the breather valve in clothing processing apparatus's inner tube venthole department, provide the circulating route for the stoving wind on the one hand, on the other hand the breather valve can be balanced the inside and outside pressure of inner tube, makes the flow of stoving wind more smooth and easy, and when washing machine carried out the washing procedure, the inner tube can utilize the breather valve to adjust pressure, makes the intake and exhaust of washing water more smooth.

As shown in fig. 3 to 5, in the embodiment of the present invention, the vent valve 5 includes a valve seat 121 and a valve plate 123, the valve seat 121 is installed at the vent, and the valve plate 123 is installed on the valve seat 121 to cover the whole vent; in order to avoid the falling or abrasion of the valve plate 123 caused by the collision friction of the valve plate 123 in the clothes washing and drying process, the valve plate is arranged on one side wall surface of the valve seat 121 far away from the inner part of the inner barrel. The valve plate 123 is provided with a notch 124, the valve plate 123 is made of elastic materials such as rubber, and the notch 124 is closed under the action of the elastic force of the valve plate before the pressure difference between the two sides of the valve plate does not reach a set value; after the pressure difference on the two sides of the valve plate reaches a set value, the pressure difference acting force overcomes the self elasticity of the valve plate to cause the valve plate to deform and the opening to be opened, so that the two sides of the valve plate can generate air flow passing through the valve plate under the effect of the pressure difference.

In the embodiment of the invention, the opening 124 formed on the valve plate 123 can be a narrow slit in any shape and penetrating through two sides of the valve plate; preferably, the notch 124 on the valve plate 123 is in a cross shape, and the center of the cross shape is overlapped with the center of the ventilation opening.

In the embodiment of the present invention, in order to ensure that the first one-way vent valve 51 at the air inlet provided on the inner cylinder opening 301 side is opened in one direction toward the inner direction of the inner cylinder 3, the following means are provided: the first one-way breather valve 51 comprises a first valve plate correspondingly covering the air inlet, the first valve plate is provided with a bulge part protruding towards the inner part of the inner cylinder 1, and the valve plate is provided with a notch which extends along the radial direction of the valve plate and penetrates through the valve plate; preferably, the first valve plate is in a bowl shape which is reversely buckled at the air inlet and protrudes towards the inner part of the inner cylinder.

In the embodiment of the present invention, in order to ensure that the second one-way breather valve 52 at the air outlet provided at the inner cylinder bottom 303 side is opened in one direction toward the outside of the inner cylinder 3, the following arrangement is made: the second one-way vent valve comprises a second valve plate correspondingly covering the air outlet, the second valve plate is provided with a protruding part protruding towards the outside of the inner cylinder 1, and the second valve plate is provided with a notch which extends along the radial direction of the valve plate at the protruding part and penetrates through the valve plate; preferably, the second valve plate is in a bowl shape which is inverted at the air outlet and protrudes into the inner cylinder.

The valve plates at the air inlet and the air outlet are arranged into the bowl shape protruding towards the air flow direction, so that the valve plates can overcome the pressure difference at two sides of the flow guide direction by utilizing the shape of the valve plates, deformation cannot be generated, the opening cannot be opened by the pressure difference at two sides of the valve plates in the backflow direction, and the effects of one-way ventilation and one-way on-off air flow control of the ventilation valve are achieved.

As shown in fig. 1 to 2, in the embodiment of the present invention, a housing 1 of the clothes treating apparatus is provided with a gasket 11 for connecting a door opening and an outer cylinder opening 201 to form a passage; the sealing gasket 11 is cylindrical, and two ends of the cylindrical sealing gasket are respectively in sealing connection with the machine door opening and the outer cylinder opening 201 to form a channel for a user to take and place loads in the inner cylinder 3 after the machine door 16 is closed and opened. The sealing gasket 11 is in a sleeve shape capable of axially extending and retracting, and two ends of the sleeve-shaped sealing gasket 11 are respectively connected with the opening of the machine door 16 and the cylinder opening 201 of the outer cylinder in a sealing way; the wind blocking structure 12 is arranged between the outer cylinder opening 201 and the inner cylinder opening 301, one end of the wind blocking structure is connected with the sealing gasket 11, and the other end of the wind blocking structure is freely arranged; preferably, the choke structure 12 is an elastic extension structure disposed on the gasket 11. The arrangement of the choke structure 12 prevents drying air from forming external circulation in the space between the inner barrel 3 and the outer barrel 2, so that the drying air can accurately enter the inner barrel 3 through the air inlet, meanwhile, due to the arrangement of the choke structure 12, air flow is concentrated in the space of the air inlet cavity 21 among the choke structure 12, the machine door 17 and the outer barrel opening 201, the pressure difference inside and outside the inner barrel 3 is improved due to the gathering of the drying air, the drying air can enter the inner barrel 3 conveniently, and the drying efficiency of clothes is improved. The choke structure 12 is arranged in the gap between the inner cylinder and the outer cylinder, so that the gap between the inner cylinder and the outer cylinder is divided into the air inlet cavity 21 and the air outlet cavity 22 which are independent by the choke structure 12, and the flowability of circulating air flow is improved.

In the embodiment of the invention, the sealing gasket 11 is provided with a drying air port, and the air outlet end of the air duct is connected with the drying air port, so that the air outlet end of the air duct is communicated with the air inlet cavity 21 through the drying air port. The drying air ports are arranged above the sealing gasket 11, and at least one drying air port is arranged to improve the conveying capacity of drying air. Preferably, in order to avoid the backflow of air flow in the circulation air path, a wind shielding structure for blocking the backflow of the circulation air flow can be arranged on the circulation air path formed by the air duct 4 and the outer barrel 2, the wind shielding structure is preferably arranged on the sealing gasket 11, at least one circle of blocking ribs arranged on one side of the sealing gasket 11 close to the inner barrel 3 in a relative drying manner is arranged on the sealing gasket 11, one end of each blocking rib is connected with the sealing gasket 11, the other end of each blocking rib is in a free state, each blocking rib radially protrudes and extends along a channel enclosed by the sealing gasket 11, each blocking rib can incline towards one side under the action of pressure difference between two sides, so that the circulation air flows through gaps formed after the inclination and the backflow of the protruded air flow is blocked, and the purpose of blocking the air flow in. Preferably, the free end of the blocking rib is in contact with a machine door extending into the opening of the outer barrel, so that the backflow prevention effect of the circulating airflow is further improved.

In the embodiment of the present invention, during the drying process of the clothes processing apparatus, the drying end node needs to be accurately determined to avoid the occurrence of load damage and the like caused by excessive drying of the load placed in the inner drum for drying process, and in view of this, a sensor needs to be disposed on the clothes processing apparatus to perform parameter detection on the airflow in the circulation air path, so as to determine whether the drying process is completed according to the detected parameters.

As shown in fig. 1 to 2, the present embodiment describes a laundry treating apparatus including; an inner cylinder 3 for forming a closed water container when executing a washing program, and an air duct 4 with two ends connected with the inner cylinder 3 respectively to form a circulation air path; the circulating air path is provided with a humidity sensor 8 for detecting the humidity of the circulating air flow, and the humidity sensor is used for judging the drying completion node of the clothes treatment device.

The humidity sensor is arranged in the circulating air path, so that the humidity of circulating air flow flowing through the circulating air path is detected, the environment humidity in the inner cylinder is indirectly obtained, and the remarkable technical progress of accurately judging whether the drying of the load in the inner cylinder is finished is achieved.

In this embodiment, the humidity sensor 8 is disposed in the air duct 4 and/or the outer cylinder 2, so that the humidity sensor 8 is mounted on a relatively fixed component of the casing 1 of the clothes processing device, and the humidity sensor 8 does not rotate together with the inner cylinder 3, so that the humidity sensor 8 is conveniently connected with a power supply module and a control circuit board of the clothes processing device, and power supply connection and data transmission connection of the humidity sensor 8 are realized. Preferably, in order to improve the accuracy of humidity detection, the humidity sensor 8 is arranged at the air inlet end of the air duct 4 connected with the outer barrel 2, so that the humidity sensor 8 directly detects the humidity of the air flow flowing out of the outer barrel 2, thereby reducing the measurement error and improving the detection precision.

In order to further improve the detection precision, the humidity sensor can be arranged in the air outlet cavity 22 between the inner cylinder bottom 303 and the outer cylinder bottom 203, so that the humidity sensor 8 is arranged as close as possible to the air outlet of the inner cylinder 3, the humidity sensor 8 directly detects the air outlet flow flowing out of the inner cylinder 3, and the humidity detection precision is obviously improved.

In the embodiment, the inner cylinder 3 is coaxially sleeved in the outer cylinder 2, a gap is formed between the inner cylinder opening 301 and the outer cylinder opening 201 to form an air inlet cavity 21, and a gap is formed between the outer cylinder bottom 203 and the inner cylinder bottom 303 to form an air outlet cavity 22, air outlets on the sides of the air inlet end of the air duct 4 and the inner cylinder bottom 303 are communicated with the air outlet cavity 22, and air inlets on the sides of the air outlet end of the air duct 4 and the inner cylinder opening 301 are communicated with the air inlet cavity 21; the humidity sensor 8 is arranged at the air inlet end of the air duct 4. The position where the air inlet end of the air duct 4 is communicated with the outer cylinder 2 and the axial line of the outer cylinder 2, and the gaps between the inner cylinder wall 302 and the outer cylinder wall 202 are arranged in a staggered manner, so that the humidity of the air flow flowing into the air duct 4 is consistent with that of the air flow in the inner cylinder 3 as much as possible.

Simultaneously, in order to further promote the precision to the air current humidity detects, set up one with 4 air inlet ends in the wind channel of clothing processing apparatus and become the vertical corner that extends that makes progress by the level, humidity transducer 8 is in the corner to the air current that makes the corner of flowing through produces the diversion vortex, delays the velocity of flow, makes the humidity transducer 8 that is in the corner more abundant with the contact of the air current of flowing through, so that detect the precision and obtain showing and promote.

In this embodiment, a drying determination method applied to the clothes processing apparatus is further introduced, when the clothes processing apparatus performs drying processing on a load held in the inner drum 3 by using a circulating airflow between the inner drum 3 and the air duct 4, humidity detection is performed on the circulating airflow, and it is determined that the drying of the load is completed after the humidity detection value reaches a set value. Through carrying out humidity detection to circulating air to indirectly detect 3 internal environment humidity in the inner tube, and then reach the effect that whether the load finishes of drying in the accurate judgement inner tube.

In this embodiment, the humidity sensor 8 may detect the relative humidity or the absolute humidity of the airflow. Judging the drying degree of the clothes in the inner drum by detecting the variation of the humidity value in unit time, and finishing the drying program when the unit variation of the detected humidity value reaches a system set threshold; or directly comparing the humidity detection value with a set value to judge the clothes drying degree, and finishing the drying program when the detected humidity value reaches a system set threshold value.

In this embodiment, after the humidity detection value of the circulating airflow is smaller than the set value, it is determined that the drying of the load in the inner cylinder 3 is completed. And after the humidity detection value of the circulating air flow is smaller than the minimum set value, judging that the clothes are over-dried, stopping drying and giving a prompt. And after the humidity detection value of the circulating air flow is larger than the maximum set value, judging that the humidity sensor 8 is wrapped by the condensed water in the air duct and fails, and continuing the drying process until the humidity detection value is smaller than the maximum set value, and then judging whether the load drying is finished by using the detection value.

In this embodiment, after the laundry processing apparatus starts to execute the drying program, the time is counted until the drying program continues to execute the set time and the laundry processing apparatus is in the middle of the drying program, the detection of the start of the circulation airflow is performed, and the detection value is compared with the set value to determine whether the drying of the load is completed.

In order to improve the drying judgment accuracy, in this embodiment, the humidity of the circulating airflow may be checked at intervals of a certain time, and when the difference between two adjacent humidity detection values is smaller than a set difference value, the drying of the load in the inner cylinder is judged to be completed, so that the time node of the drying completion of the load in the inner cylinder is accurately judged by using the humidity change value.

As shown in fig. 2, in this embodiment, a first humidity sensor 81 and a second humidity sensor 82 may be respectively disposed at the air outlet end and the air inlet end of the air duct 4 to respectively detect humidity of the airflow flowing into the inner barrel 3 and the airflow flowing out of the inner barrel. Set up a humidity transducer 8 respectively through 3 air outlets of inner tube and the air intake outside at clothing processing apparatus to the effect of the difference detection of realization outflow and inflow air current to inner tube 3, and then reach and utilize 3 inflows of inner tube and outflow air current humidity detection value to carry out accurate judgement to stoving finish time node.

Meanwhile, in this embodiment, the first humidity sensor 81 and the second humidity sensor 82 may be respectively disposed in the air inlet chamber 21 on the outer tub opening 201 side and the air outlet chamber 22 on the outer tub bottom 203 side, and may be correspondingly mounted on the outer tub 2.

In this embodiment, the air inlet end and the air outlet end of the air duct 4 are respectively provided with the temperature sensors, and then the following drying determination can be performed: and respectively detecting the temperatures of the circulating air flows at the air inlet of the inner cylinder 3 and the air outlet of the inner cylinder 3, and judging that the drying of the load in the inner cylinder is finished after the difference value between the detection value of the air inlet and the detection value of the air outlet is smaller than a set value.

Meanwhile, in this embodiment, when the laundry processing apparatus performs the drying process on the load held in the inner tub 3 by using the circulating airflow between the inner tub 3 and the air duct 4, the temperature of the circulating airflow is detected, the detection of the humidity of the airflow in the circulating air duct is started after the temperature detection value reaches the set value, and whether the drying of the load is completed is determined according to the humidity detection value.

In this embodiment, in order to discharge the water flow after the clothes in the inner drum 3 of the clothes treatment device are separated and realize the normal washing of the inner drum 3 with sealed water in the working process of the washing machine, the following settings are performed:

the inner cylinder 3 is provided with a washing normally closed hole 7, so that in the normal washing and rinsing processes of the inner cylinder 1, when the rotating speed of the inner cylinder 3 is lower than a set value, the washing normally closed hole 7 is closed, the inner cylinder directly forms a water containing cylinder for containing washing and rinsing water, and the clothes are washed or rinsed by using the washing and rinsing water remained in the inner cylinder; when the rotation speed of the inner cylinder is higher than a set value in the process of performing dehydration and drainage by the inner cylinder, the normally closed washing hole is opened, so that water in the inner cylinder directly flows out through the normally closed washing hole.

In the present embodiment, washing the normally closed cell 7 includes: holes, which are arranged on the inner cylinder 3 and are arranged in a penetrating way so as to allow water flow to pass through; the centrifugal valve is arranged on the inner barrel 3 and correspondingly arranged at the hole, the valve core of the centrifugal valve is used for plugging the hole, and the valve core of the centrifugal valve is opened under the action of centrifugal force after the rotating speed of the inner barrel reaches a set value. Preferably, the centrifugal valve further comprises an elastic member, and the elastic member is clamped between the valve core and the inner cylinder to provide a reset acting force for the valve core so as to push the valve core to block the hole. The centrifugal valve can be any valve body structure which can open the hole under the action of centrifugal force in the prior art.

Preferably, in order to realize the hidden arrangement of the washing normally closed hole 7, the washing normally closed hole 7 is arranged at the lifting rib 13 which is radially protruded on the inner wall of the inner cylinder 3, the hollow part inside the lifting rib 13 is arranged and communicated with the hollow part inside the inner cylinder, so that washing water can flow into the lifting rib by wall and flows out from the washing normally closed hole 7 corresponding to the hollow cavity inside the lifting rib.

In the present embodiment, in order to feed water into the inner drum 3 of the rotating clothes treatment device, a water feeding structure 6 having the following structure is provided: the center of the inner drum bottom 303 of the inner drum 3 is connected with a motor shaft arranged on a central shaft, the motor shaft is composed of a hollow sleeve, one end of the hollow sleeve is connected with a water inlet pipe of the clothes processing device, and the other end of the hollow sleeve is communicated with the inside of the inner drum.

As shown in fig. 3 to 5, the specific structure of the vent valve 5 in the embodiment of the present invention is as follows: comprises a valve plate 123, and the valve plate 123 is provided with a notch 124 through which gas only flows; the valve plate 123 is assembled on a mounting structure, the mounting structure comprises a valve seat 121 mounted on the inner cylinder 1, the valve seat 121 comprises a disc-shaped main body with a plurality of hollow parts 122, and the periphery of the disc-shaped valve seat 121 is fixed with the wall surface of a ventilation opening on the inner cylinder 1 in a sealing manner; one side of the valve seat 121 far away from the inner cylinder 1 is covered and laid with a valve plate 123, and the valve plate 123 is provided with a notch 124 through which air flows. The valve plate 123 is spaced from the disc-shaped valve seat 121 to leave a space for the valve plate 123 to deform.

Through the arrangement, the valve plate 123 can be fixedly assembled on the inner barrel 3, and the fixed installation of the valve plate 123 is realized; meanwhile, due to the blocking effect of the valve seat 121, the direct contact between the valve plate and the clothes and water flow in the cylinder is avoided, and the valve plate 123 is prevented from being directly impacted and damaged.

In this embodiment, the valve seat 121 includes two rings of annular brace rods that are coaxially arranged and have different diameters, and the outer ring of annular brace rods and the inner ring of annular brace rods are connected through a plurality of connecting rods that extend in the radial direction, and the connecting rods are evenly arranged at equal intervals and angles, and both ends of each connecting rod are connected with the inner periphery of the outer ring of annular brace rods and the outer periphery of the inner ring of annular brace rods respectively. Preferably, the inner ring annular support rib is arranged close to the inner part of the roller relative to the outer ring annular support rib, so that the connecting rib extends in an inward inclined manner.

In this embodiment, the outer ring support rib has a certain extension width along the axial direction, and one side of the outer ring support rib close to the inside of the roller is connected with the connecting rib, and one side of the outer ring support rib far away from the inner cylinder 1 is paved and covered with the valve plate 123.

In this embodiment, the valve plate 123 is made of an elastic material, so that the valve plate can deform under the action of the pressure difference between the two sides to close or open the notch 124 formed on the valve plate 123; preferably, the notch 124 on the valve plate 123 is in a cross shape, and the center of the cross shape is overlapped with the center of the ventilation opening.

In this embodiment, the valve plate 123 may be a two-way valve plate that is flat and can flow two-way airflow to two sides; the valve plate can also be an arc-shaped one-way valve plate which can only protrude out of the side and flow in one direction as shown in fig. 3 to 5, and the installation direction of the one-way valve plate can be automatically adjusted according to the flow direction of the air flow.

In the embodiment, the inner cylinder 3 is provided with a ventilation opening, the valve seat 121 is correspondingly covered and assembled in the ventilation opening, and the periphery of the valve seat 121 is in sealing fit with the inner wall of the ventilation opening; preferably, the outer ring support rib of the valve seat 121 is correspondingly and hermetically attached to the inner wall of the ventilation opening; preferably, the inner side and the outer side of the outer ring support rib are respectively provided with outward bent flanges, and the flanges are correspondingly attached to the inner side and the outer side of the inner cylinder 3, so that the valve seat 121 is tightly assembled on the inner cylinder 3.

In the water filling process of the washing machine, the valve plate 123 in this embodiment allows the interior of the inner tub without the dewatering holes to exchange air with the outside, so as to adjust the pressure inside the drum, and achieve the purpose of smooth water intake into the drum or smooth water discharge to the outside.

Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A laundry treating apparatus, comprising; an inner cylinder for sealing the water container when executing the washing program, and an air duct with two ends connected with the inner cylinder respectively to form a circulation air path; the method is characterized in that: and a humidity sensor for detecting the humidity of the circulating air flow is arranged on the circulating air path and used for judging the drying completion node of the clothes treatment device.

2. The clothes treating apparatus according to claim 1, wherein the inner cylinder is fitted in the outer cylinder, the inner cylinder is provided with a vent hole connected to the outer cylinder, and a vent valve for opening and closing the vent hole is installed at the vent hole; two ends of the air duct are respectively communicated with the gap between the inner barrel and the outer barrel, and the humidity sensor is arranged in the air duct and/or the outer barrel;

preferably, the vent hole is opened when the pressure difference between two sides of the vent valve reaches a set value, or the vent hole is closed by self elastic reset when the pressure difference between two sides of the vent valve does not reach the set value;

preferably, the vent valve comprises a valve plate covering the vent hole, the valve plate is hermetically connected with the periphery of the vent hole, and a notch which is arranged in a penetrating manner and is opposite to the vent hole is formed in the valve plate; the valve plate is made of elastic materials and used for sealing the opening by utilizing the elasticity of the valve plate when the valve plate is reset.

3. The clothes treating apparatus according to claim 2, wherein a fan for providing a driving force for the circulating air to flow in a single direction is provided in the air duct, and the humidity sensor is provided at an air inlet end of the air duct upstream of the fan;

preferably, the air inlet end of the air duct is communicated with the bottom of the bottom side of the outer barrel, and the air outlet end of the air duct is communicated with the top of the opening side of the outer barrel.

4. A clothes treating apparatus according to any one of claims 1 to 3, wherein an inner cylinder cover is installed at the opening of the inner cylinder to correspondingly close the opening of the inner cylinder when the clothes treating apparatus performs a washing procedure, the inner cylinder cover is provided with an air inlet communicated with the air outlet of the air duct, and the air inlet is provided with a first one-way vent valve; the bottom side of the inner cylinder is provided with an air outlet communicated with the air inlet end of the air duct, and the air outlet is provided with a second one-way vent valve;

preferably, a plurality of air inlets are arranged on the side of the opening of the inner cylinder, a plurality of air outlets are arranged on the side of the bottom of the inner cylinder, a first one-way vent valve is correspondingly arranged at each air inlet, and a second one-way vent valve is correspondingly arranged at each air outlet;

further preferably, each air inlet and each air outlet are symmetrically arranged on the inner cylinder axis.

5. A clothes treating apparatus as claimed in claim 4, wherein the inlet port of the inlet side of the inner cylinder is provided with a first one-way vent valve for allowing the air flow from the outer cylinder to the inner cylinder only by the pressure difference between both sides, and the outlet port of the bottom side of the inner cylinder is provided with a second one-way vent valve for allowing the air flow from the inner cylinder to the outer cylinder only by the pressure difference between both sides;

preferably, the first one-way vent valve comprises a first valve plate correspondingly covering the air inlet, the first valve plate is provided with a protruding part protruding towards the inner part of the inner cylinder, and the valve plate is provided with a notch which extends along the radial direction of the valve plate at the protruding part and penetrates through the valve plate;

the second one-way breather valve is including corresponding the second valve block that covers the gas outlet, and the second valve block has the bulge to the outside convex of inner tube, is equipped with on the second valve block along the opening that the valve block radially extended, run through the valve block in bulge department.

6. A clothes treatment apparatus as claimed in any one of claims 2 to 5, wherein a first humidity sensor is provided at the air outlet end of the air duct or at the gap between the mouth of the outer cylinder and the mouth of the inner cylinder, and a second humidity sensor is provided at the air inlet end of the air duct or at the gap between the bottom of the outer cylinder and the bottom of the inner cylinder.

7. A drying judgment method applied to the clothes treatment device of any one of claims 1 to 6, characterized in that when the clothes treatment device performs drying treatment on the load held in the inner drum by using the circulating airflow between the inner drum and the air duct, the humidity of the circulating airflow is detected, and after the humidity detection value reaches a set value, the drying of the load is judged to be completed.

8. The drying determination method of a clothes treatment apparatus according to claim 7, wherein after the humidity detection value of the circulating air flow is less than a set value, it is determined that the drying of the load in the inner cylinder is completed;

preferably, after the humidity detection value of the circulating air flow is larger than the maximum set value, the humidity sensor is judged to be wrapped by the condensed water in the air duct and to be invalid, and the drying program is continued until the humidity detection value is smaller than the maximum set value, and then the detection value is used for judging whether the load drying is finished.

9. The drying judgment method of a clothes treating apparatus according to claim 8, wherein after the clothes treating apparatus starts to execute the drying program, the timing is performed, until the drying program continues to execute the set time and after the drying program is in the later period, the circulating air flow is detected, and the detected value is compared with the set value to judge whether the drying of the load is completed;

preferably, the humidity in the inner cylinder is checked at certain intervals, and when the difference between two adjacent humidity detection values is smaller than a set difference value, the completion of the drying of the load in the inner cylinder is judged.

10. The drying determination method for a clothes treating apparatus according to any one of claims 7 to 9, wherein humidity detection is performed on the air flow before the circulating air flow flows into the inner cylinder and the air flow after the circulating air flow flows out of the inner cylinder, and when a difference between the two detection values is smaller than a set difference value, it is determined that the drying of the load in the inner cylinder is completed.