CN112663269B - Clothes treatment device and drying judgment method thereof - Google Patents
Clothes treatment device and drying judgment method thereof Download PDFInfo
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- CN112663269B CN112663269B CN201910976810.3A CN201910976810A CN112663269B CN 112663269 B CN112663269 B CN 112663269B CN 201910976810 A CN201910976810 A CN 201910976810A CN 112663269 B CN112663269 B CN 112663269B
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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; the circulating air path is provided with a temperature sensor for detecting the temperature of the circulating air flow and used for judging the drying completion node of the clothes processing device. The temperature sensor is arranged in the circulating air path, so that the temperature of circulating air flow flowing through the circulating air path is detected, the ambient temperature 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 temperature detection to circulating air to indirectly detect the inside ambient temperature of inner tube, and then reach the effect that whether the load finishes of drying in the accurate judgement inner tube.
Description
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 washing machine performs a washing operation using a frictional force between water flow and laundry by rotating a rotary blade at the center of a washing tub in a 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 casing of the washing machine, and the inner tub is an important part of washing, and a hole is generally 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 caused to clothes, and the washing machine is not beneficial to the health of human bodies, so that the washing machine with the non-porous 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; the circulating air path is provided with a temperature sensor for detecting the temperature of the circulating air flow 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.
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.
Furthermore, a fan which provides driving force for circulating airflow to flow along a single direction is arranged in the air duct, and a temperature sensor is arranged at the air inlet end and/or the air outlet end of the air duct;
preferably, the air inlet end of the air duct is communicated with the bottom of the barrel bottom side of the outer barrel, the air outlet end of the air duct is communicated with the top of the barrel opening side of the outer barrel, and the air inlet end and the air outlet end of the air duct are respectively provided with a first temperature sensor and a second temperature sensor;
further preferably, a drying device for at least dehumidifying the air flowing through is provided in the air duct, for example: a heat pump system; a condensing module plus a heating module, etc.
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 ventilation 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; a temperature sensor for detecting the temperature of circulating airflow flowing through is arranged in a gap between the inner cylinder and the outer cylinder and/or in the air duct;
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.
Furthermore, a first one-way vent valve which can only make the airflow flow into the inner cylinder from the outer cylinder by using the pressure difference between two sides is arranged at an air inlet at the side of the opening of the inner cylinder, and a second one-way vent valve which can only make the airflow flow out of the inner cylinder to the outer cylinder by using the pressure difference between two sides is arranged at an air outlet at the bottom side of the inner cylinder; a first temperature sensor is arranged in a gap between the opening side of the inner cylinder and the opening side of the outer cylinder, and a second temperature sensor is arranged in a gap between the bottom side of the inner cylinder and the bottom side of the outer cylinder;
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.
Further, a humidity sensor for detecting the humidity of the circulating air flow is arranged on the circulating air path and used for judging a drying completion node of the clothes processing device;
preferably, the humidity sensor is arranged in the air duct or a gap between the inner cylinder and the outer cylinder;
preferably, the humidity sensor is located at the air inlet end of the air duct upstream of the fan.
The invention also discloses a drying judgment method applied to any one of the clothes treatment devices, 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 temperature of the circulating airflow is detected, and the completion of the drying of the load is judged after the temperature detection value reaches a set value.
Further, temperature detection is carried out on the circulating airflow at the air outlet of the inner barrel, and after the temperature detection value at the air outlet is larger than a set value, the completion of drying the load in the inner barrel is judged; preferably, the temperature of the circulating air flow at the air outlet of the inner cylinder is detected at intervals of a certain time, and after the difference value of two adjacent temperature detection values at the air outlet is smaller than a set change value, the load in the inner cylinder is judged to be dried.
And further, the temperatures of the circulating air flows at the air inlet of the inner barrel and the air outlet of the inner barrel are respectively detected, and 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, the fact that the drying of the load in the inner barrel is finished is judged.
Further, when the clothes processing device dries the load placed in the inner cylinder by using the circulating airflow between the inner cylinder and the air duct, the humidity of the circulating airflow is detected, the airflow temperature in the circulating air duct is detected after the humidity detection value reaches a set value, and whether the drying of the load is finished is judged according to the temperature detection value.
After the technical scheme is adopted, compared with the prior art, the invention has the following beneficial effects.
The temperature sensor is arranged in the circulating air path, so that the temperature of circulating air flow flowing through the circulating air path is detected, the ambient temperature 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 temperature measuring to the circulating air flow to indirectly detect the inside ambient temperature 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 also 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 rather to illustrate it for those skilled in the art by 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 simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific 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 airflow is also installed in the air duct 4, so as to reduce the humidity of the airflow in the circulating air duct and dry the load in the inner drum 3; 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 moist and hot drying air, and the moist 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 laundry, 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; the air duct 4 of the clothes processing device is provided with a condensation heat absorber and an evaporation heat radiator which are sequentially arranged along the flowing direction of the circulating air flow, so that the air flow flowing out of the inner drum 3 firstly exchanges heat with the condensation heat absorber to condense and separate out the water vapor contained in the condensation heat absorber, then exchanges heat with the evaporation heat radiator to heat the condensation heat absorber to form high-temperature dry air flow, and finally the high-temperature dry air flow flows back into the inner drum 3 to reduce the humidity in the inner drum and improve the temperature in the inner drum 3, thereby achieving the effect of drying the load in the inner drum 3. Therefore, the effect of drying the load in the inner cylinder is realized 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 tub 3 is mounted in the outer tub 2 so as to be rotatable about an axis and form a closed water container during washing. 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 the 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 independently rotate under the action of the driving motor to wash the internal clothes are achieved. Preferably, the motor shaft of the drive motor directly forms an inner cylinder shaft, which is coaxially and fixedly connected to 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 gas, an outlet gas 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 make the air flow out from the inner cylinder to the outer cylinder by using the pressure difference between the two sides, 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 through 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.
As shown in fig. 3 to 5, in the embodiment of the present invention, the vent valve 5 disposed at the vent may be any structure that can achieve the corresponding closing or opening of the vent by using the pressure difference between two sides and the elastic deformation of the vent valve itself, for example, as follows: the vent valve 5 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 way and is opposite to the vent hole 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 endless 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.
In the embodiment of the invention, the vent valve 5 comprises a valve seat 121 and a valve plate 123, the valve seat 121 is arranged at the vent, and the valve plate 123 is arranged on the valve seat 121 and covers 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 which bulges 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 bulge part 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 outer part of the inner cylinder, 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 reversely buckled at the air outlet and protrudes towards the inner part of the inner barrel.
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 a barrel opening 201 of an outer barrel 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 which can axially extend and retract, and two ends of the sleeve-shaped sealing gasket 11 are respectively connected with the opening of the machine door 16 and the 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 wind blocking structure 12 is an elastic extension structure disposed on the sealing pad 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 opening, and the air outlet end of the air duct is connected with the drying air opening, so that the air outlet end of the air duct is communicated with the air inlet cavity 21 through the drying air opening. 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 the outer barrel from flowing back into the air duct is achieved (not noted in the attached drawings). 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 and 2, the present embodiment describes a laundry treating apparatus including; an air duct 4 which forms an inner cylinder of a closed water container when a washing program is executed, and two ends of the air duct are respectively connected with the inner cylinder 3 to form a circulating air path; the circulation air path is provided with a temperature sensor 9 for detecting the temperature of the circulation air flow, and the temperature sensor is used for judging the drying completion node of the clothes treatment device.
The temperature sensor is arranged in the circulating air path, so that the temperature of circulating air flow flowing through the circulating air path is detected, the ambient temperature 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 temperature sensor 9 is disposed in the air duct 4 and/or the outer cylinder 2, so that the temperature sensor 9 is mounted on a relatively fixed part of the casing 1 of the clothes processing device, and the temperature sensor 9 does not rotate together with the inner cylinder 3, which is convenient for the temperature sensor 9 to be connected with a power supply module and a control circuit board of the clothes processing device, so as to implement power supply connection and data transmission connection for the temperature sensor 9. Preferably, in order to improve the accuracy of temperature detection, the temperature sensor 9 is disposed at the connection between the air duct 4 and the outer cylinder 2, so that the temperature sensor 9 directly detects the temperature of the air flowing out or in from the outer cylinder 2, thereby reducing the measurement error and improving the detection accuracy.
In order to further improve the detection precision, the temperature sensor 9 can be arranged in the air outlet cavity 22 between the inner cylinder bottom and the outer cylinder bottom 203, the temperature sensor 9 is arranged as close as possible to the air outlet of the inner cylinder 3, the temperature sensor 9 directly detects the air outlet flow flowing out of the inner cylinder 3, and the temperature detection precision is obviously improved.
Meanwhile, in order to further improve the accuracy of detecting the temperature of the air flow, as shown in fig. 1, a corner which extends upwards and vertically from the horizontal position is arranged at the air inlet end of the air duct 4 of the clothes processing device, the temperature sensor 9 is arranged at the corner, so that the air flow flowing through the corner generates a turning vortex and the flow speed is delayed, and the temperature sensor 9 arranged at the corner is in more sufficient contact with the flowing air flow, so that the detection accuracy is obviously improved.
As shown in fig. 1 and fig. 2, in the present embodiment, the inner cylinder 3 is coaxially sleeved in the outer cylinder 2, the inner cylinder opening 301 and the outer cylinder opening 201 are separated by a gap to form an air inlet chamber 21, and the outer cylinder bottom 203 and the inner cylinder bottom 303 are separated by a gap to form an air outlet chamber 22, the air inlet end of the air duct 4 and the air outlet at the side of the inner cylinder bottom 303 are both communicated with the air outlet chamber 22, and the air outlet end of the air duct 4 and the air inlet at the side of the inner cylinder opening 301 are both communicated with the air inlet chamber 21. The temperature sensor 9 is arranged at the air inlet end of the air duct 4. The connection between the air inlet end of the air duct 4 and the outer cylinder 2 and the axial line of the outer cylinder 2 and the clearance between the inner cylinder wall 302 and the outer cylinder wall 202 are arranged in a staggered manner, so as to ensure that the temperature of the air flow flowing into the air duct 4 is as consistent as possible with that of the air flow in the inner cylinder 3.
As shown in fig. 2, in this embodiment, a first temperature sensor 91 and a second temperature sensor 92 may be respectively disposed at the air inlet end and the air outlet end of the air duct 4. The air inlet end of the air duct is communicated with the outer barrel, and the air inlet end of the air duct is arranged with the axis of the outer barrel and the gaps between the wall of the inner barrel and the wall of the outer barrel in a staggered manner, so that the temperature of the air flow flowing into the air duct is ensured to be consistent with that of the air flow in the inner barrel as much as possible.
Preferably, in order to improve the detection accuracy, the following settings may be made: the first temperature sensor 91 is provided in the gap between the inner cylinder opening 301 and the outer cylinder opening 201, and the second temperature sensor 92 is provided in the gap between the inner cylinder bottom 303 and the outer cylinder bottom 203.
The temperature sensors are respectively arranged outside the air outlet and the air inlet of the inner barrel of the clothes processing device, so that the effect of respectively detecting the outflow air flow and the inflow air flow of the inner barrel is realized, and the aim of accurately judging the drying finish time node by utilizing the temperature detection values of the inflow air flow and the outflow air flow of the inner barrel is further achieved.
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 cylinder by using a circulating airflow between the inner cylinder 3 and the air duct 4, temperature detection is performed on the circulating airflow, and it is determined that the drying of the load is completed after the temperature detection value reaches a set value. Through carrying out temperature detection to circulating air to indirectly detect the inside ambient temperature of inner tube, and then reach the effect that whether the load finishes of drying in the accurate judgement inner tube.
In this embodiment, the temperature sensor 9 may detect the relative temperature or the absolute temperature of the airflow. The drying degree of the clothes in the inner drum is judged by detecting the variation of the temperature value in unit time, and when the unit variation of the detected temperature value reaches a system set threshold, the drying program is ended; or directly comparing the temperature detection value with a set value to judge the clothes drying degree, and finishing the drying program when the detected temperature value reaches a system set threshold value.
In this embodiment, the temperature of the circulating airflow at the air outlet of the inner cylinder 3 is detected, and when the temperature detection value at the air outlet is greater than a set value, it is determined that the drying of the load in the inner cylinder 3 is completed; preferably, when the temperature detection value of the circulating air flow is greater than the maximum set value, it is determined that the laundry is about to be excessively dried, and the drying is stopped and a prompt is issued.
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 temperature of the circulating air flow is detected, and the detected value is compared with the set value to determine whether the drying of the load is completed.
In order to improve drying determination accuracy, in this embodiment, the temperature of the circulating airflow at the air outlet of the inner cylinder may be checked at intervals of a certain time, and when the difference between two adjacent temperature detection values is smaller than a set difference value, it is determined that drying of the load in the inner cylinder is completed, so that the time node of the completion of drying of the load in the inner cylinder is accurately determined by using the temperature change value.
In this embodiment, the humidity of the circulating airflow at the air inlet of the inner cylinder 3 and the humidity of the circulating airflow at the air outlet of the inner cylinder 3 can be respectively detected, and 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, it is determined that the drying of the load in the inner cylinder is completed.
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 humidity of the circulating airflow is detected, the detection of the temperature of the airflow in the circulating airflow path is started after the humidity detection value reaches the set value, and whether the drying of the load is completed is determined according to the temperature detection value.
In this embodiment, in order to discharge the water flow after the clothes are separated from the inner drum 3 of the clothes treatment device 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 heavily retained 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 washing normally closed hole is opened, so that water in the inner cylinder directly flows out through the washing normally closed hole.
In the present embodiment, washing the normally closed cells 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 clamped between the valve core and the inner cylinder to provide a reset acting force to the valve core 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 setting 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 the washing normally closed hole 7 corresponding to the hollow cavity inside the Beijing lifting rib flows out.
In the present embodiment, in order to feed water into the inner drum 3 of the rotating laundry treatment apparatus, 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. Further preferably, the inner ring-shaped supporting rib is arranged close to the inside of the roller relative to the outer ring-shaped supporting 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 as to deform itself under the action of the pressure difference between the two sides to close or open the opening 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 which is flat and can flow air to two sides in two directions as shown in fig. 4; the valve may be a one-way valve plate which is arc-shaped as shown in fig. 3 and only can make one-way flow at the protruded side, and the installation direction of the one-way valve plate can be automatically adjusted according to the flow direction of the air flow.
In this 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 hermetically attached to the inner wall of the ventilation opening; preferably, the outer ring support rib of the valve seat 121 is correspondingly sealed and 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 (13)
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: the circulating air path is provided with a temperature sensor for detecting the temperature of the circulating air flow and used for judging a drying completion node of the clothes treatment device;
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; a temperature sensor for detecting the temperature of circulating airflow flowing through is arranged in a gap between the inner cylinder and the outer cylinder and/or in the air duct;
the inner cylinder is sleeved in the outer cylinder, the inner cylinder is provided with an air vent connected with the outer cylinder, and the air vent is provided with an air vent valve for opening and closing the air vent; two ends of the air duct are respectively communicated with the gap between the inner barrel and the outer barrel, and the temperature sensor is arranged in the air duct and/or the outer barrel;
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;
the air vent valve 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;
a plurality of air inlets are arranged at the side of the opening of the inner barrel, a plurality of air outlets are arranged at 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;
all the air inlets and all the air outlets are symmetrically arranged on the inner cylinder axis.
2. The clothes treatment device according to claim 1, wherein a fan for providing a driving force for the circulating air to flow in a single direction is arranged in the air duct, and a temperature sensor is arranged at the air inlet end and/or the air outlet end of the air duct.
3. The clothes treating apparatus according to claim 1, wherein the air inlet end of the air duct communicates with the bottom of the bottom side of the outer tub, the air outlet end of the air duct communicates with the top of the mouth side of the outer tub, and the air inlet end and the air outlet end of the air duct are respectively provided with a first temperature sensor and a second temperature sensor.
4. A clothes treating apparatus as claimed in any one of claims 1 to 3, wherein the inlet port on the mouth 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 a pressure difference between both sides, and the outlet port on 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 a pressure difference between both sides; a first temperature sensor is arranged in a gap between the opening side of the inner cylinder and the opening side of the outer cylinder, and a second temperature sensor is arranged in a gap between the bottom side of the inner cylinder and the bottom side of the outer cylinder.
5. A clothes treatment apparatus as claimed in claim 4, wherein the first one-way vent valve comprises a first valve plate correspondingly covering the air inlet, the first valve plate has a protrusion protruding into the inner cylinder, and the valve plate is provided with a notch extending radially from the protrusion and penetrating 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. The laundry apparatus according to any one of claims 1 to 3, wherein a humidity sensor for detecting humidity of the circulating air flow is provided in the circulating air path, and is configured to determine a drying completion node of the laundry apparatus.
7. A laundry treating apparatus according to claim 6, wherein the humidity sensor is provided in the air duct or in the gap between the inner and outer cylinders.
8. A laundry treatment apparatus as claimed in claim 7, wherein the humidity sensor is provided at the inlet end of the duct upstream of the fan.
9. A drying judgment method applied to the clothes treatment apparatus according to any one of claims 1 to 8, characterized in that when the clothes treatment apparatus performs drying treatment on a load held in the inner drum by using a circulating airflow between the inner drum and the air duct, temperature detection is performed on the circulating airflow, and after the temperature detection value reaches a set value, it is determined that the drying of the load is completed.
10. The drying determination method of a clothes treatment apparatus according to claim 9, wherein a temperature of the circulating air flow at the air outlet of the inner drum is detected, and when the detected temperature at the air outlet is greater than a set value, it is determined that the drying of the load in the inner drum is completed.
11. The drying determination method for a clothes treatment apparatus according to claim 10, wherein the temperature of the circulating air flow at the air outlet of the inner drum is detected at intervals of a certain time, and when the difference between two adjacent temperature detection values at the air outlet is smaller than a set variation value, it is determined that the drying of the load in the inner drum is completed.
12. The drying determination method of a clothes treatment apparatus according to claim 9, wherein temperatures of the circulating airflows at the air inlet of the inner drum and the air outlet of the inner drum are respectively detected, and when a difference between a detected value of the air inlet and a detected value of the air outlet is smaller than a set value, it is determined that the drying of the load in the inner drum is completed.
13. The method of any one of claims 9 to 12, wherein when the laundry processing apparatus performs a drying process on the load placed in the inner tub using the circulating airflow between the inner tub and the air duct, the humidity of the circulating airflow is detected, and after the detected humidity value reaches a set value, the temperature of the airflow in the circulating air duct is detected, and whether or not the drying of the load is completed is determined based on the detected temperature value.
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