阅读说明：本技术 冷凝阀、洗干机及洗干机的控制方法 (Condensing valve, washing and drying machine and control method of washing and drying machine ) 是由 黄远行 庞志超 陈洽 崔斌 陈烊冰 黄海 于 2021-10-08 设计创作，主要内容包括：本发明涉及洗干机技术领域,具体涉及一种冷凝阀、洗干机及洗干机的控制方法。洗干机包括冷凝阀,冷凝阀包括阀体以及阀芯,阀体设有阀腔及与阀腔连通的进气口、进水口及出水气口,阀芯活动设置于阀腔内,阀芯能够活动至第一位置和第二位置,阀芯活动至第一位置时,进气口与出水气口截断,进水口与出水气口连通,阀芯活动至第二位置时,进水口与出水气口截断,进气口与出水气口连通。上述洗干机通过采用二位三通的冷凝阀,合并了气压平衡和冷凝的功能,使气路和水路接通或者断开,满足洗涤、烘干两种运行模式下分别通气和通水的需求,有效解决了洗干机在烘干时热汽外溢造成水盒出现凝露的问题以及洗干机在洗涤时内外气压不平衡出现无法进水的问题。(The invention relates to the technical field of washing and drying machines, in particular to a condensing valve, a washing and drying machine and a control method of the washing and drying machine. The washing and drying machine comprises a condensation valve, the condensation valve comprises a valve body and a valve core, the valve body is provided with a valve cavity and an air inlet communicated with the valve cavity, a water inlet and a water outlet, the valve core is movably arranged in the valve cavity, the valve core can move to a first position and a second position, when the valve core moves to the first position, the air inlet is cut off from the water outlet, the water inlet is communicated with the water outlet, when the valve core moves to the second position, the water inlet is cut off from the water outlet, and the air inlet is communicated with the water outlet. Above-mentioned washing and drying machine has merged the function of atmospheric pressure balance and condensation through adopting the condensate valve of two-position tee bend, makes gas circuit and water route switch-on or disconnection, satisfies the demand of ventilating respectively and logical water under washing, the two kinds of operation modes of stoving, has effectively solved washing and drying machine hot vapour overflow when drying and has caused the problem that the condensation appears in the water box and washing and drying machine when the washing problem that can't intake appears in the unbalanced atmospheric pressure.)

1. A condensate valve, comprising:

the valve body (10) is provided with a valve cavity (11), and an air inlet (12), a water inlet (13) and a water outlet (14) which are communicated with the valve cavity (11); and

the valve core (20) is movably arranged in the valve cavity (11), the valve core (20) can move to a first position and a second position, when the valve core (20) moves to the first position, the air inlet (12) and the water outlet (14) are cut off, the water inlet (13) is communicated with the water outlet (14), when the valve core (20) moves to the second position, the water inlet (13) and the water outlet (14) are cut off, and the air inlet (12) is communicated with the water outlet (14).

2. A condensate valve according to claim 1, wherein the valve member (20) is movable to the first position to close the inlet port (12) and the valve member (20) is movable to the second position to close the inlet port (13).

3. The condensate valve according to claim 2, wherein the gas inlet (12) and the water inlet (13) are arranged on one side of the valve body (10), the moving direction of the valve core (20) is perpendicular to the axial direction of the gas inlet (12) and the water inlet (13), and the water outlet (14) is arranged on the opposite side of the valve body (10).

4. A condensation valve according to any of claims 1-3, characterized in that the condensation valve (100) further comprises a control member (30), which control member (30) is arranged at least one end of the valve member (20) in the direction of movement, by means of which control member (30) the movement of the valve member (20) to the first position or the second position is controlled.

5. A condensate valve according to claim 4, characterized in that the control member (30) is an electromagnet, the valve member (20) is made of a permanent magnetic material, the control member (30) attracts the valve member (20) when energized, so that the valve member (20) moves to the first position, and the control member (30) de-energizes, so that the valve member (20) moves to the second position.

6. A washer dryer characterized in that it comprises a condensation valve (100) according to any of claims 1 to 5.

7. The washer dryer according to claim 6, further comprising a condensation duct (200), wherein one end of the condensation duct (200) is communicated with the water outlet (14), and the other end of the condensation duct (200) is communicated with the drum (300) of the washer dryer.

8. The washer dryer as claimed in claim 7, further comprising a main wash valve (410) and a pre-wash valve (420), wherein the main wash valve (410), the pre-wash valve (420) and the condensation valve (100) are connected in parallel to a water inlet header (600) of the washer dryer.

9. The washer dryer according to claim 7 or 8, characterized in that the washer dryer further comprises a breather pipe (700), the air inlet (12) communicating with a water box (500) of the washer dryer through the breather pipe (700).

10. A control method of a washer dryer for a washer dryer according to any one of claims 6 to 9, characterized in that the control method of the washer dryer comprises:

when the drying operation is carried out, the valve core (20) is controlled to move to the first position;

and when the washing machine runs, the valve core (20) is controlled to move to the second position.

Technical Field

The invention relates to the technical field of washing and drying machines, in particular to a condensing valve, a washing and drying machine and a control method of the washing and drying machine.

Background

In recent years, in order to better solve the problems of washing and airing of clothes, the washing and drying machine greatly facilitates the requirements of people on cleaning of clothes, and has the functions of washing and drying. The washing and drying machine is an intelligent novel washing machine which is added with a drying function on the basis of a full-automatic washing machine and integrates multiple functions of washing, spin-drying, drying and the like, and the condensing washing and drying machine is one of the washing and drying machines according to a drying mode.

The water-cooling condensing washing and drying machine utilizes a heater to heat air, takes away moisture on wet clothes through the hot air, then cools the wet clothes through cooling water and separates out the moisture, and the purpose of drying the clothes is achieved through continuous circulation. Generally, the water-cooling condensing type washer-dryer has a pipeline for balancing the air pressure inside and outside the washer-dryer, the pipeline communicates with the drum and the water box, the water box communicates with the outside to balance the air pressure in the drum, however, because the washer-dryer produces hot steam when drying, the hot steam in the drum can overflow into the water box through the pipeline, causing the problem of condensation of the water box, but if directly removing the pipeline, causing the problem of too large air pressure in the drum when washing the washer-dryer that water can not enter.

Disclosure of Invention

The main purposes of the invention are: the utility model provides a condensate valve, washer-dryer and washer-dryer's control method, aims at solving current washer-dryer and when drying the problem that the steam spills over the condensation, avoids the problem that the too big unable intaking of washing machine cylinder internal pressure when washing simultaneously.

In order to achieve the technical problem, the invention provides a condensation valve which comprises a valve body and a valve core, wherein the valve body is provided with a valve cavity, an air inlet, a water inlet and a water outlet which are communicated with the valve cavity, the valve core is movably arranged in the valve cavity, the valve core can move to a first position and a second position, when the valve core moves to the first position, the air inlet is cut off from the water outlet, the water inlet is communicated with the water outlet, when the valve core moves to the second position, the water inlet is cut off from the water outlet, and the air inlet is communicated with the water outlet.

Optionally, the valve core closes the air inlet when moving to the first position, and closes the water inlet when moving to the second position.

Optionally, the air inlet and the water inlet are arranged on one side of the valve body, the moving direction of the valve core is perpendicular to the axial direction of the air inlet and the water inlet, and the water outlet is arranged on the other side opposite to the valve body.

Optionally, the condensation valve further includes a control member, the control member is disposed at least one end of the valve element in the moving direction, and the valve element is controlled to move to the first position or the second position by the control member.

Optionally, the control member is an electromagnet, the valve element is made of a permanent magnetic material, the control member attracts the valve element when the control member is energized, so that the valve element moves to the first position, and when the control member is de-energized, the valve element resets and moves to the second position.

The invention also provides a washing and drying machine, which comprises the condensation valve.

Optionally, the washing and drying machine further comprises a condensation pipe, one end of the condensation pipe is communicated with the water outlet, and the other end of the condensation pipe is communicated with the roller of the washing and drying machine.

Optionally, the washing and drying machine further comprises a main washing valve and a prewashing valve, wherein the main washing valve, the prewashing valve and the condensing valve are connected in parallel to a water inlet main port of the washing and drying machine.

Optionally, the washing and drying machine further comprises a breather pipe, and the air inlet is communicated with the water box of the washing and drying machine through the breather pipe.

The invention also provides a control method of a washing and drying machine, which is used for the washing and drying machine, and the control method of the washing and drying machine comprises the steps of controlling the valve core to move to the first position when the washing and drying machine runs and dries; and when the washing machine runs, the valve core is controlled to move to the second position.

The invention has the beneficial effects that: the condensation valve of the washing and drying machine comprises a valve body and a valve core, wherein the valve core is arranged in a valve cavity of the valve body and can move to a first position and a second position; when the valve core moves to the second position, the air inlet is communicated with the water outlet to form an air path, the air path is used for balancing the air pressure inside and outside, and the water inlet is cut off from the water outlet. This two-position three-way condensing valve of washing and drying machine, overall structure is simple, the function of atmospheric pressure balance and condensation has been merged, move about to two different positions through control valve core, realize two-position three-way effect, make gas circuit and water route switch-on or disconnection, satisfy the washing, the demand of ventilating respectively and logical water under two kinds of operation modes of stoving, effectively solved the washing and drying machine when the stoving hot vapor overflow cause the problem that the condensation appears in the water box and the washing and drying machine when the washing problem that the unbalanced atmospheric pressure appears unable intaking.

According to the control method of the washing and drying machine, selection is carried out according to different operation modes of the washing and drying machine, when the washing and drying machine is operated and dried, the valve core is controlled to move to the first position, so that the water path of the washing and drying machine is communicated, the air path is not communicated, no water vapor overflows and condenses, and the problem of water box overflow is avoided; when the washing machine runs and washes, the control valve core moves to the second position, so that the air channel of the washing and drying machine is communicated and the water channel is not communicated, the inside of the washing and drying machine is communicated with the external atmosphere through the air channel, and the problem that water cannot enter due to overlarge internal air pressure is avoided. The two-position three-way condensing valve and the control method are adopted in the washing and drying machine, the structure is simple, the control is convenient, the combination of the condensing device and the air pressure balancing device of the existing water-cooling condensing type washing and drying machine is equivalent, the advantages of the condensing device and the air pressure balancing device are both concentrated, the respective defects are avoided, the control requirements of the washing and drying machine under two operation modes of drying and washing are conveniently met, the problem that condensation occurs to a water box due to the fact that hot steam overflows when the washing and drying machine is used for drying is effectively solved, and the problem that water cannot enter the washing and drying machine due to the fact that the internal air pressure and the external air pressure are unbalanced when the washing and drying machine is used for washing is solved.

Drawings

The advantages of the above and/or additional aspects of the present invention will become apparent and readily appreciated from the following description of the embodiments taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic view of a condensate valve of the present invention in a first state;

FIG. 2 is a schematic view of the condensing valve of FIG. 1 in a second state;

FIG. 3 is a top plan view of the washer dryer with the condensing valve of FIG. 1;

FIG. 4 is a schematic diagram of a washer dryer having the condensing valve of FIG. 1;

FIG. 5 is a top plan view of another washer dryer having the condensing valve of FIG. 1;

wherein the correspondence between the reference numbers and the names of the components in fig. 1 to 5 is:

100. a condensing valve;

10. a valve body; 11. a valve cavity; 12. an air inlet; 13. a water inlet; 14. a water outlet port;

20. a valve core;

30. a control member;

200. a condenser tube;

300. a drum;

410. a main wash valve; 420. pre-washing the valve;

500. a water box;

600. a water inlet main port;

700. a breather pipe;

800. a housing;

900. an air duct.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the description of the present invention, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

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; the communication may be direct, indirect via an intermediate medium, or internal to both elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

An embodiment of the present invention provides a two-position three-way condensation valve 100 for a washing and drying machine, which can realize the respective ventilation or water-passing functions of the washing and drying machine under the action of the two-position three-way condensation valve 100, so as to meet the requirements of the washing and drying machine in different operation modes. As shown in fig. 1 and 2, the condensation valve 100 includes a valve body 10 and a valve core 20, and is movable inside the valve body 10 by controlling the valve core 20 to connect or disconnect the air path and the water path.

The valve body 10 is provided with a valve cavity 11, and an air inlet 12, a water inlet 13 and an air outlet 14 which are communicated with the valve cavity 11, the valve core 20 is movably arranged in the valve cavity 11, and the valve core 20 can move to a first position and a second position. In a specific embodiment, when the valve core 20 moves to the first position (the position shown in fig. 1), the air inlet 12 is blocked from the water outlet 14, the water inlet 13 is communicated with the water outlet 14 through the valve cavity 11 to form a water path passing through the condensation valve 100, at this time, the water path is connected, the air path is disconnected, condensed water can be conducted through the water path for cooling to separate out moisture, and meanwhile, the air path is disconnected to avoid water vapor from overflowing and condensing; when the valve core 20 moves to the second position (the position shown in fig. 2), the water inlet 13 is cut off from the water outlet 14, the air inlet 12 is communicated with the water outlet 14 through the valve cavity 11 to form an air path passing through the condensation valve 100, at the moment, the air path is connected and the water path is disconnected, and the air pressure inside the washing and drying machine and the air pressure outside the washing and drying machine can be balanced through the air path.

The condensation valve 100 of the washing and drying machine comprises a valve body 10 and a valve core 20, wherein the valve core 20 is arranged in a valve cavity 11 of the valve body 10 and can move to a first position and a second position, when the valve core 20 moves to the first position, a water inlet 13 is communicated with a water outlet 14 to form a water path, the water path is used for conducting condensed water, and a gas inlet 12 and the water outlet 14 are cut off, so that water vapor is prevented from overflowing and condensing; when the valve core 20 moves to the second position, the air inlet 12 is communicated with the water outlet 14 to form an air path, the air path is used for balancing the air pressure between the inside and the outside, and the water inlet 13 is cut off from the water outlet 14. This two-position three-way condensing valve 100 of washing and drying machine, overall structure is simple, the function of atmospheric pressure balance and condensation has been merged, move about to two different positions through control valve core 20, realize two-position three-way effect, make gas circuit and water route switch-on or disconnection, satisfy the washing, the demand of ventilating respectively and logical water under two kinds of operational modes of stoving, effectively solved the washing and drying machine when drying hot vapor overflow cause the problem that condensation appears in water box 500 and the washing and drying machine when the washing problem that unable intaking appears in the atmospheric pressure unbalance.

In this embodiment, the valve element 20 closes the air inlet 12 when moving to the first position, and closes the water inlet 13 when moving to the second position. The valve core 20 is used as a valve port of the selective control valve, when the valve core 20 moves to a first position, the air inlet 12 is sealed by the valve core 20, so that a channel between the air inlet 12 and the water outlet 14 is cut off, and the water inlet 13 is not sealed by the valve core 20, so that the water inlet 13 and the water outlet 14 are communicated through the valve cavity 11, a water channel for conducting condensed water is further formed, the normal operation of the condensation work of the washing and drying machine is ensured, and the air channel is cut off at the moment, so that the phenomenon that the water box 500 is condensed due to the fact that generated hot steam overflows through the air channel can be avoided; similarly, when the valve core 20 moves to the second position, the valve core 20 seals the water inlet 13, so that the passage between the water inlet 13 and the water outlet 14 is cut off, and the air inlet 12 is not sealed by the valve core 20, so that the air inlet 12 and the water outlet 14 are communicated through the valve cavity 11, and an air path for balancing the internal air pressure and the external air pressure is formed, thereby ensuring that the washing and drying machine normally feeds water, wherein the area of the outer contour of the valve core 20 is larger than the area of the cross sections of the air inlet 12 and the water inlet 13, so as to completely seal the air inlet 12 or the water inlet 13. Of course, in other embodiments, other on-off modes may be adopted, as long as the first position is to connect the water inlet 13 with the water outlet 14, the air inlet 12 is to be cut off from the water outlet 14, and the second position is to connect the air inlet 12 with the water outlet 14.

Further, in the present embodiment, the air inlet 12 and the water inlet 13 are opened on one side of the valve body 10, the moving direction of the valve core 20 is perpendicular to the axial direction of the air inlet 12 and the water inlet 13, and the water outlet 14 is opened on the opposite side of the valve body 10. Specifically, an air inlet 12 and an water inlet 13 are respectively arranged at positions close to two ends on one side wall of the valve body 10, an air outlet 14 is arranged at a middle position on the other side wall opposite to the valve body 10, and the valve core 20 reciprocates along the direction from the air inlet 12 to the water inlet 13, wherein the length of the valve core 20 in the moving direction is smaller than that of the valve cavity 11 in the direction, and the length of the valve core 20 in the moving direction is smaller than the distance from the water inlet 13 to a far end in the direction and the distance from the air inlet 12 to a far end in the direction. Due to the structural arrangement of the condensation valve 100, when the valve core 20 reciprocates between the first position and the second position in the valve cavity 11, the air inlet 12 or the water inlet 13 can be conveniently and respectively sealed, so that only one of the air inlet 12 and the water inlet 13 is communicated with the water outlet 14, and the structure is simple and reasonable to arrange and convenient to control.

In the present embodiment, the condensation valve 100 further includes a control member 30, the control member 30 is disposed at least one end of the valve element 20 in the moving direction, and the valve element 20 is controlled to move to the first position or the second position by the control member 30. By arranging the control member 30 at one end of the valve core 20 in the moving direction, the valve core 20 can be driven by the control member 30 to move up and down in the valve cavity 11 to the first position and the second position in a reciprocating manner, so that the water path and the air path are respectively connected and disconnected.

Further, in the present embodiment, the control member 30 is an electromagnet, the valve element 20 is made of a permanent magnetic material, the control member 30 attracts the valve element 20 when being powered on, so that the valve element 20 moves to the first position, and when the control member 30 is powered off, the valve element 20 moves to the second position. Because the control member 30 is an electromagnet, when the electromagnet is electrified with 220V strong current, strong magnetism is generated, and the valve core 20 is made of a permanent magnetic material, the control member 30 can attract the valve core 20 after being electrified, and the magnetism disappears after the control member 30 is powered off, so that the attraction between the control member 30 and the valve core 20 disappears, and the purpose of driving the valve core 20 to reciprocate up and down in the valve cavity 11 can be achieved by electrifying and powering off the control member 30. Specifically, the control member 30 is only provided with one and is located at one end of the valve core 20 in the moving direction, for example, at one end closer to the air inlet 12, wherein the control member 30 is arranged at the outer side of the valve body 10, when strong electricity is supplied to the control member 30, the control member 30 generates strong magnetism, under the attraction action of the control member 30, the valve core 20 moves towards the end where the control member 30 is located until the air inlet 12 is completely closed, at this time, the water inlet 13 is communicated with the water outlet 14, and the air inlet 12 is cut off from the water outlet 14; when the control member 30 is powered off, the control member 30 is demagnetized, the interaction between the control member 30 and the valve core 20 disappears, the valve core 20 is movably reset under the action of gravity until the water inlet 13 is completely sealed, at the moment, the air inlet 12 is communicated with the water outlet 14, and the water inlet 13 is cut off from the water outlet 14. In another embodiment, a spring may be disposed between the other end of the valve core 20 in the moving direction and the inner wall of the valve body 10, and when the control member 30 is powered off, the valve core 20 is driven to return to the second position under the action of gravity and the elastic force of the spring, wherein the sum of the elastic force of the spring and the gravity should be smaller than the attraction force of the electromagnet on the valve core 20 during operation. Of course, in other embodiments, one control member 30 may be disposed at each end of the valve core 20 in the moving direction, and the valve core 20 may be controlled to move between the first position and the second position by two control members 30, however, the configuration is more complicated than the configuration in which only one control member 30 is disposed.

In another embodiment of the present invention, referring to fig. 3 and 4 together, a washing and drying machine includes the above-mentioned condensation valve 100. This washing and drying machine is through setting up condensate valve 100, under the effect of this 100 two-position tee bend of condensate valve, move about respectively to primary importance and second place through control valve core 20, with switch-on or disconnection respectively with gas circuit and water route, and then realize that washing and drying machine washes and changes between ventilating and leading to water respectively under two kinds of operational mode with drying, guarantee that washing and drying machine passes through inside and outside atmospheric pressure of gas circuit balance drum 300 when the washing mode, avoid appearing the too big unable problem of intaking of drum 300 atmospheric pressure, and washing and drying machine switches on the comdenstion water through the water route when the drying mode and dries with normal water-cooling condensation formula, the phenomenon of the outer excessive condensation of steam appears is avoided in the disconnection of gas circuit simultaneously.

It should be noted that, when the water-cooled condensing washing and drying machine is in the washing mode, the air pressure inside the drum 300 is increased due to the foam generated in the drum 300, and particularly, when the foam of the laundry in the drum 300 is too much, the air pressure inside the drum 300 is too high to allow water to enter, and further, the water tank 500 overflows out of the washing and drying machine. At present, the common solution is to utilize the pipeline to pass through drum 300 and water box 500 and be connected external atmosphere, atmospheric pressure in the balanced drum 300, but, when water-cooling condensation formula washer-dryer is when the stoving mode of operation, high temperature steam can overflow to in the water box 500 through this pipeline, cause the serious condensation of water box 500, through set up above-mentioned two-position three-way's condensate valve 100 in the washer-dryer, the control of cooperation drainage pump, the unbalanced problem of atmospheric pressure in the drum 300 during both can solving the washing, the problem of water box 500 condensation during can solving again drying.

In this embodiment, the washing and drying machine includes a condensation duct 200, one end of the condensation duct 200 is communicated with the water outlet 14, and the other end of the condensation duct 200 is communicated with the drum 300 of the washing and drying machine. The condensation duct 200 is connected to the water outlet 14 and the drum 300 to conduct the condensed water using the condensation duct 200 or to balance the air pressure in the drum 300. Specifically, when the valve core 20 is located at the first position, the water inlet 13 and the water outlet 14 are connected to the condenser pipe 200 to the drum 300 to form a water path passing through the two-position three-way condenser valve 100 for conducting condensed water, and when the valve core 20 is located at the second position, the water inlet 12 and the water outlet 14 are connected to the condenser pipe 200 to the drum 300 to form a gas path passing through the two-position three-way condenser valve 100 for balancing the air pressure inside the drum 300 and the outside.

In this embodiment, the washing and drying machine further includes a main wash valve 410 and a pre-wash valve 420, and the main wash valve 410, the pre-wash valve 420 and the condensation valve 100 are connected in parallel to the water inlet header 600 of the washing and drying machine. Namely, for the washing and drying machine, the water inlet valve part of the washing and drying machine consists of three valves, namely a main washing valve 410, a prewashing valve 420 and a condensing valve 100, and water inlets 13 of the three valves are connected in parallel to a water inlet main port 600, namely the on-off water of the three valves is separately controlled, so that the water inlet requirements of the washing and drying machine under different operation modes are met.

In this embodiment, the washing and drying machine further includes a housing 800, the drum 300 is installed in the housing 800, the condensation valve 100 is disposed at a water outlet position at the rear of the housing 800, and the water inlet 13 of the condensation valve 100 is communicated with the water inlet header 600 of the drainage pump. In addition, the washing and drying machine further comprises an air duct 900, wherein the air duct 900 is communicated with the air inlet, so that when the valve core 20 is located at the first position, air pressure balance inside and outside the roller 300 is realized through the air duct 900, the air inlet, the water outlet 14 and the condensation pipe 200.

In another embodiment, as shown in fig. 5, the washer dryer further comprises a ventilation pipe 700, and the air inlet 12 communicates with the water tank 500 of the washer dryer through the ventilation pipe 700. Thus, since the air inlet 12 of the condensation valve 100 is connected to the air pipe 700 to the water box 500, the air pressure balance ventilation can be kept as far away from the electrical components as possible, and the interference with the normal operation of the electrical components can be avoided.

In another embodiment of the present invention, a control method for a washing and drying machine of the above washing and drying machine is provided, the control method for a washing and drying machine includes controlling the valve core 20 to move to a first position during drying operation; when the washing operation is performed, the control valve core 20 moves to the second position.

In a specific embodiment, when drying is performed, the control member 30 is electrified to generate a magnetic field to rapidly attract the valve core 20 to move upwards to the first position, the water path is connected, the drainage pump is opened at the moment, condensed water from the water inlet 13 enters the drum 300 from the water outlet port 14 along the condensation pipe 200, the air inlet 12 is closed by the valve core 20 at the moment, the air path is not communicated, no water vapor overflows and condenses during drying, and the problem that the water box 500 overflows due to hot vapor overflowing during drying is solved; when the washing machine runs, the control part 30 is powered off and does not generate a magnetic field, the valve core 20 moves downwards to the second position under the action of gravity and elasticity, the air passage is communicated, the air pressure in the roller 300 is communicated with the external atmosphere through the air passage, the problem that water cannot enter due to overlarge air pressure in the roller 300 during washing is solved, the water inlet 13 is closed by the valve core 20 at the moment, the water passage is not communicated, and the drainage pump is closed.

The control method of the washing and drying machine is selected according to different operation modes of the washing and drying machine, and when the washing and drying machine is operated and dried, the valve core 20 is controlled to move to the first position, so that the water path of the washing and drying machine is communicated, the air path is not communicated, no water vapor overflows and condenses, and the problem of water overflowing of the water box 500 is avoided; when the washing machine runs and washes, the control valve core 20 moves to the second position, so that the air channel of the washing and drying machine is communicated, the water channel is not communicated, the inside of the washing and drying machine is communicated with the external atmosphere through the air channel, and the problem that water cannot enter due to overlarge internal air pressure is solved. The two-position three-way condensing valve 100 and the control method are adopted in the washing and drying machine, the structure is simple, the control is convenient, the combination of the condensing device and the air pressure balancing device of the existing water-cooling condensing type washing and drying machine is equivalent, the advantages of the condensing device and the air pressure balancing device are both concentrated, the defects of the condensing device and the air pressure balancing device are avoided, the control requirements of the washing and drying machine under two operation modes of drying and washing are conveniently met, the problem that condensation occurs to the water box 500 due to the fact that hot steam overflows when the washing and drying machine is used for drying is effectively solved, and the problem that water cannot enter due to the fact that the internal air pressure and the external air pressure of the washing and drying machine are unbalanced when the washing is carried out is solved.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.