CN116815447A

CN116815447A - Control method of laundry treating apparatus

Info

Publication number: CN116815447A
Application number: CN202210286833.3A
Authority: CN
Inventors: 孙俣; 金学峰; 贾东岳; 丁晓瑞; 耿雪峰
Original assignee: Qingdao Haier Smart Technology R&D Co Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Haier Smart Technology R&D Co Ltd; Haier Smart Home Co Ltd
Priority date: 2022-03-22
Filing date: 2022-03-22
Publication date: 2023-09-29

Abstract

The invention relates to the technical field of clothes treatment, in particular to a control method of clothes treatment equipment, and aims to solve the problem that a sterilization mode of a washing machine in the prior art is poor in effect. For this purpose, the control method of the present invention comprises: and acquiring a washing mode of the clothes treatment equipment, acquiring a current operation stage of the mixed washing mode when the washing mode is the mixed washing mode, judging whether the current operation stage is a specific stage, and selectively controlling the electrifying operation of the light plasma tube based on a first judging result. According to the invention, the power-on operation of the light plasma tube is combined with the current operation stage of the mixed washing mode, so that the better sterilization effect can be obtained while the washing effect is ensured.

Description

Control method of laundry treating apparatus

Technical Field

The invention relates to the technical field of clothes treatment, in particular to a control method of clothes treatment equipment.

Background

With the increasing level of living of people, washing machines are used more and more frequently in daily life of people. When a user needs to wash clothes, the clothes can be cleaned by only putting the clothes to be washed and the detergent into a washing cylinder of the washing machine and then running the washing machine. However, only the stain on the laundry is removed only by the washing operation, and bacteria, viruses, and the like on the laundry cannot be removed.

For this reason, the clothes are generally sterilized by ultraviolet irradiation, ozone, silver ions, and the like. However, the ultraviolet irradiation sterilization method generally has a sterilization effect only on the surface of the clothes irradiated with ultraviolet rays, and the space in the washing drum is limited, so that it is difficult to realize ultraviolet ray coverage on all the surface of the clothes. The ozone sterilization mode has good sterilization effect, but ozone is harmful to human bodies, the national indoor air quality standard has strict limitation on the content of ozone, and the ozone has strong oxidizing property, is easy to fade clothes, and is difficult to popularize in a large area. The silver ion sterilization mode is to add nano material on the surface of the inner and outer cylinders of the washing machine, and release silver ions capable of sterilizing during washing, so as to achieve the sterilization effect. However, the silver ion sterilization method requires that the clothes and silver ions are fully contacted to achieve the aim of sterilization, and the aim of sterilization cannot be achieved in places where the clothes and silver ions are not contacted.

Accordingly, there is a need in the art for a new solution to the above-mentioned problems.

Disclosure of Invention

The invention aims to solve the technical problems, namely the problem that the sterilization mode of the washing machine in the prior art is poor in effect.

The present invention provides a control method of a laundry treatment apparatus including a housing, an outer tub provided in the housing, and an inner tub provided in the outer tub, the inner tub being in communication with the outer tub, the inner tub being provided to be rotatable with respect to the outer tub, the laundry treatment apparatus being provided with a photo-plasma fresh air device including a housing provided with an air inlet and an air outlet, the air inlet being in communication with an environment, and a photo-plasma tube provided in the housing, the photo-plasma tube being provided to be capable of ionizing air when energized to generate a gas containing an ionic substance, the outer tub being provided with a through hole, the air outlet being in communication with the through hole so as to allow air in an environment to enter into the housing via the air inlet under a negative pressure formed at the through hole when the inner tub is rotated with respect to the outer tub, and to enter into the outer tub via the air outlet and the through hole after being ionized by the photo-plasma tube, the control method comprising: acquiring a washing mode of the laundry treatment apparatus; when the washing mode is a mixed washing mode, acquiring the current operation stage of the mixed washing mode; judging whether the current operation stage is a specific stage or not; selectively controlling the electrifying operation of the optical plasma tube based on the first judging result; wherein the specific stage comprises a pre-water inlet stage and/or a spin-drying stage.

In a preferred technical solution of the above control method, the step of "selectively controlling the energizing operation of the optical plasma tube based on the first determination result" further includes: if the current operation stage is a specific stage, further judging whether the specific stage is a spin-drying stage or a pre-water inlet stage; and controlling the electrifying operation of the optical plasma tube based on the second judging result.

In a preferred embodiment of the above control method, the step of controlling the power-on operation of the optical plasma tube based on the second determination result, wherein the optical plasma tube has a high gear, a medium gear, and a low gear, further includes: and if the specific stage is a spin-drying stage, controlling the light plasma tube to operate in a high-grade mode.

In the preferred technical scheme of the control method, a waterproof ventilation valve is arranged between the photoplasma fresh air device and the outer cylinder, and the control method further comprises: and controlling the waterproof ventilation valve to be opened at the same time, before or after controlling the light plasma tube to run in a high-grade mode.

In a preferred technical solution of the above control method, the control method further includes: before controlling the waterproof ventilation valve to be opened, acquiring the operated time length of the spin-drying stage; comparing the operated time length with a threshold time length; if the operated duration is longer than the threshold duration, controlling the waterproof and breathable valve to be opened; and if the operated duration is less than or equal to the threshold duration, not controlling the waterproof ventilation valve to be opened.

In a preferred embodiment of the above control method, the step of controlling the power-on operation of the optical plasma tube based on the second determination result, wherein the optical plasma tube has a high gear, a medium gear, and a low gear, further includes: if the specific stage is a pre-water inlet stage, controlling the inner cylinder to rotate; and controlling the optical plasma tube to run in a middle gear at the same time, before or after controlling the rotation of the inner cylinder.

In the preferred technical scheme of the control method, a waterproof ventilation valve is arranged between the photoplasma fresh air device and the outer cylinder, and the control method further comprises: and controlling the waterproof ventilation valve to be opened at the same time, before or after controlling the rotation of the inner cylinder.

In a preferred embodiment of the above control method, the photoplasma fresh air device is disposed above the outer tub, the laundry treatment apparatus further includes a water inlet valve, and the water inlet valve is configured to be capable of supplying water into the inner tub when opened, and the control method further includes: after the light plasma tube is controlled to operate in a middle gear for a first preset time period, controlling the water inlet valve to be opened, and controlling the clothes treatment equipment to operate in the mixed washing mode; and simultaneously or after the inlet valve is controlled to be opened, controlling the light plasma tube to operate at a low gear until the mixed washing mode operation is finished.

In a preferred technical solution of the above control method, the control method further includes: and after the optical plasma tube is controlled to operate for a second preset time period, controlling the optical plasma tube to stop operating.

In a preferred technical solution of the above control method, the control method further includes: before the current operation stage of the mixed washing mode is obtained, the odor concentration in the inner cylinder is obtained; comparing the odor concentration to a concentration threshold; if the odor concentration is greater than the concentration threshold, acquiring the current operation stage of the mixed washing mode; and if the odor concentration is less than or equal to the concentration threshold value, not acquiring the current operation stage of the mixed washing mode.

In the technical scheme of the application, the clothes treatment equipment comprises a shell, an outer cylinder arranged in the shell and an inner cylinder arranged in the outer cylinder, wherein the inner cylinder is communicated with the outer cylinder, and the inner cylinder is arranged to be rotatable relative to the outer cylinder. The clothing treatment equipment is provided with a light plasma fresh air device, the light plasma fresh air device comprises a shell and a light plasma tube arranged in the shell, an air inlet and an air outlet are arranged on the shell, and the air inlet is communicated with the environment. The light plasma tube is arranged to ionize air when energized to generate a gas containing ionic substances, the outer cylinder is provided with a through hole, and the air outlet is communicated with the through hole, so that air in the environment enters the shell through the air inlet under the action of negative pressure formed at the through hole when the inner cylinder rotates relative to the outer cylinder, and enters the outer cylinder through the air outlet and the through hole after being ionized by the light plasma tube. That is, when the inner cylinder rotates relative to the outer cylinder, a negative pressure is formed at the through hole, air in the environment is sucked into the shell under the action of the negative pressure, the light plasma tube in the shell generates hydroxyl radicals, free oxygen atoms and superoxide ion plasma substances by the pure oxygen and water in the air when being electrified, and then gas containing the ionic substances enters the outer cylinder through the gas outlet and the through hole and then enters the inner cylinder communicated with the outer cylinder. As the ionic substances can effectively remove bacteria, viruses and the like, the bacteria, viruses and the like on the outer cylinder, the inner cylinder and the clothes to be treated in the inner cylinder can be disinfected by the ionic substances in the gas. That is, the application can effectively remove bacteria, viruses and the like on the outer cylinder, the inner cylinder and the clothes to be treated in the inner cylinder through the optical plasma fresh air device, and obtain better degerming effect.

The control method of the invention comprises the following steps: and acquiring a washing mode of the clothes treatment equipment, acquiring a current operation stage of the mixed washing mode when the washing mode is the mixed washing mode, judging whether the current operation stage is a specific stage, and selectively controlling the electrifying operation of the light plasma tube based on a first judging result. Wherein the specific stage comprises a pre-water inlet stage and/or a spin-drying stage. Through the control mode, when the washing mode is the hybrid washing mode, the electrifying operation of the light plasma tube is selectively controlled according to whether the current operation stage is a specific stage or not, so that the electrifying operation of the light plasma tube is combined with the current operation stage of the hybrid washing mode, and the outer cylinder, the inner cylinder and clothes in the inner cylinder can be disinfected while the washing effect is ensured, and a good sterilization effect is obtained.

Further, if the current operation stage is a specific stage, further judging whether the specific stage is a spin-drying stage or a pre-water inlet stage, and if the specific stage is a spin-drying stage, and the hybrid washing mode is finished at this time, controlling the light plasma tube to operate in a high-grade mode, so that the light plasma tube can ionize air to generate gas containing more ionic substances. When the mixed washing mode is in a spin-drying stage, the inner cylinder rotates at a high speed relative to the outer cylinder, negative pressure can be formed at the through hole, and under the action of the negative pressure, air in the environment can enter the shell through the air inlet and enter the outer cylinder through the air outlet and the through hole after being ionized by the light plasma tube. Therefore, the gas containing more ionic substances can be introduced into the outer cylinder, so that the outer cylinder, the inner cylinder and clothes in the inner cylinder can be better disinfected, and a better sterilization effect can be obtained in a shorter time.

In one possible embodiment, a waterproof ventilation valve is arranged between the optical plasma fresh air device and the outer cylinder, and the optical plasma fresh air device and the outer cylinder can be communicated or not communicated through the waterproof ventilation valve. In the application, the waterproof ventilation valve is controlled to be opened at the same time, before or after the light plasma tube is controlled to run in a high-grade mode, and the outer cylinder is communicated with the inner cylinder, so that the light plasma fresh air device can be communicated with the outer cylinder. Because the washing water in the outer barrel is less in the spin-drying stage, the washing water does not enter the photoplasma fresh air device even if the waterproof ventilation valve is opened. In the spin-drying stage, the inner cylinder rotates at a high speed relative to the outer cylinder to form negative pressure at the through hole, under the action of the negative pressure, air in the environment can be sucked into the shell, and after the electrified light plasma tube is ionized to generate gas containing ionic substances, the gas enters the outer cylinder through the through hole and the air outlet to perform sterilization treatment on the outer cylinder, the inner cylinder and clothes in the inner cylinder, so that a good sterilization effect can be obtained.

Before the waterproof ventilation valve is controlled to be opened, the operated time length of the spin-drying stage is obtained, the operated time length is compared with the threshold time length, if the operated time length is longer than the threshold time length, the spin-drying stage is indicated to have been performed for a period of time, at the moment, the outer barrel is basically free of washing water, and at the moment, the waterproof ventilation valve is controlled to be opened, so that the outer barrel is communicated with the light plasma fresh air device. If the running time is less than or equal to the threshold time, the time for the spin-drying stage to start or be performed is short, and a small amount of washing water exists in the outer barrel at the initial stage of the spin-drying stage, if the light plasma fresh air device is arranged at the lower side or below the outer barrel, if the waterproof ventilation valve is opened at the moment, the washing water enters the light plasma fresh air device to damage the light plasma fresh air device, and at the moment, the waterproof ventilation valve is not controlled to be opened. Through such control mode, whether control whether open waterproof ventilation valve based on the long size of having run of stage spin-dry to no matter what position of light plasma new trend device setting in the urceolus, can avoid leading to its condition emergence that wets even damages because of wash water enters into in the light plasma new trend device, thereby can ensure the steady operation of light plasma new trend device better, obtain better degerming effect.

Further, if the specific stage is a pre-water inlet stage, the hybrid washing mode is not started, and at this time, the drum is controlled to rotate, the laundry can be disturbed by the rotation of the drum, and a negative pressure can be formed at the through hole when the drum rotates. And controlling the light plasma tube to operate at a medium range while, before or after controlling the rotation of the inner cylinder, and ionizing air through the light plasma tube to generate gas containing more ionic substances. Through such control mode, through the rotation of inner tube and the operation of light plasma tube with the middle grade, under the effect of the negative pressure that forms in through-hole department because of the inner tube rotates, the air in the environment can enter into the casing through the air intake, and in the urceolus is gone into through air outlet and through-hole after being ionized by light plasma tube, the gas that contains more ionic state material just has just so entered into in the urceolus, thereby just also can be before the operation mixes washing mode to urceolus, inner tube and be located the clothing of inner tube and carry out the disinfection better and handle, obtain better degerming effect, promote user experience.

In one possible embodiment, a waterproof ventilation valve is arranged between the optical plasma fresh air device and the outer cylinder, and the optical plasma fresh air device and the outer cylinder can be communicated or not communicated through the waterproof ventilation valve. The outer cylinder is free of washing water in the stage before water inflow, so that the waterproof air-permeable valve can be controlled to be opened at the same time, before or after the inner cylinder is controlled to rotate, and the outer cylinder is communicated with the inner cylinder, so that the light plasma fresh air device is communicated with the outer cylinder. Because the rotation of the inner cylinder can form negative pressure at the through hole, under the action of the negative pressure, air in the environment can be sucked into the shell, and after the electrified light plasma tube is ionized to generate gas containing ionic substances, the gas enters the outer cylinder through the through hole and the air outlet, so that a better sterilization effect is obtained.

In one possible embodiment, the photoplasma fresh air device is arranged above the outer drum, and the clothes treating apparatus further comprises a water inlet valve which can send water into the inner drum when the water inlet valve is opened. After the light plasma tube is controlled to operate in the middle gear for a first preset period of time, the light plasma tube is operated for a period of time, more gas containing ionic substances is fed into the inner cylinder, bacteria, viruses and the like on the outer cylinder, the inner cylinder and clothes are basically killed, at the moment, the water inlet valve is controlled to be opened, water is fed into the inner cylinder, and the clothes treatment equipment is controlled to operate in a mixed washing mode, so that clothes are washed. When or after the water inlet valve is controlled to be opened, bacteria, viruses and the like on the outer cylinder, the inner cylinder and clothes are basically killed, the operating gear of the light plasma tube is reduced, the sterilization requirement can be met, and at the moment, the light plasma tube is controlled to operate in a low gear until the operation of the mixed washing mode is finished. By such a control mode, a good washing effect can be obtained while ensuring a sterilization effect, and electric energy can also be saved.

Further, after the optical plasma tube is controlled to operate for a second preset period of time, the optical plasma tube has been operated for a period of time, more gas containing ionic substances is fed into the inner cylinder, most bacteria, viruses and the like on the outer cylinder, the inner cylinder and clothes are killed, and at the moment, the optical plasma is controlled to stop operating. Therefore, better degerming effect can be obtained, and meanwhile, electric energy is saved.

Further, before the current operation stage of the hybrid washing mode is obtained, the odor concentration in the inner cylinder is obtained, the odor concentration is compared with a concentration threshold value, if the odor concentration is larger than the concentration threshold value, the odor concentration is higher than the concentration threshold value, which indicates that the inner cylinder has peculiar smell and more bacteria, viruses and the like possibly exist in the inner cylinder, at the moment, the current operation stage of the hybrid washing mode is obtained, whether the current operation stage is a specific stage is judged based on the current operation stage, and the electrifying operation of the optical plasma tube is selectively controlled according to a judging result. If the odor concentration is less than or equal to the concentration threshold, the odor concentration indicates that no odor exists in the inner cylinder, no bacteria, viruses and the like exist or little bacteria, viruses and the like exist, and at the moment, the current operation stage of the mixed washing mode is not acquired. By adopting the control mode, the electrifying operation of the optical plasma tube can be controlled at a more proper time, and the electric energy consumption is reduced while the sterilization effect is ensured.

Drawings

The control method of the laundry management apparatus of the present invention will be described below by taking a drum washing machine as an example, with reference to the accompanying drawings, in which:

FIG. 1 is a block diagram of an optical plasma fresh air device according to one embodiment of the present invention;

FIG. 2 is a block diagram (I) of a drum washing machine provided with a photoplasma fresh air device according to an embodiment of the present application;

FIG. 3 is a block diagram (II) of a drum washing machine provided with a photoplasma fresh air device according to an embodiment of the present application;

fig. 4 is a flowchart of a control method of a drum washing machine in accordance with an embodiment of the present application;

FIG. 5 is a flow chart of a control method for determining whether to control powered operation of an optical plasma tube based on a current phase of operation of a hybrid wash mode, in accordance with an embodiment of the application;

FIG. 6 is a flow chart of a control method prior to controlling the opening of the waterproof and venting valve in accordance with an embodiment of the present application;

FIG. 7 is a control flow diagram of determining whether to acquire the current operational phase of the hybrid washing mode based on the magnitude of the odor concentration within the drum in accordance with one embodiment of the present application.

List of reference numerals:

1. a housing; 2. an inner cylinder; 3. an outer cylinder; 31. a through hole; 4. the optical plasma fresh air device; 41. a housing; 411. an air inlet; 412. an air outlet; 42. a light plasma tube; 43. a mounting base; 44. a waterproof breathable film; 45. and a control module.

Detailed Description

Preferred embodiments of the present application are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are merely for explaining the technical principles of the present application, and are not intended to limit the scope of the present application. Although the present application is described by taking a drum washing machine having a photoplasma fresh air device as an example, it is obviously applicable to other types of laundry treatment apparatuses such as pulsator washing machines, washing and drying machines, and the like.

It should be noted that, in the description of the present application, terms such as "upper," "lower," "left," "right," "inner," "outer," and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the apparatus or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present application. Furthermore, it should be noted that, in the description of the present application, unless explicitly specified and limited otherwise, the terms "connected," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application can be understood by those skilled in the art according to the specific circumstances.

In order to remove bacteria, viruses, etc. from laundry, drum washing machines generally perform sterilization treatment on laundry by means of ultraviolet irradiation, ozone, silver ions, etc. However, the ultraviolet radiation sterilization system is generally capable of only sterilizing clothes irradiated with ultraviolet radiation, and has a limited sterilization effect. The sterilization effect of the ozone sterilization mode is good, but ozone is harmful to human bodies. The silver ion degerming mode needs to be contacted with clothes to achieve the aim of degerming, and degerming effect is limited. Therefore, the present application provides a control method of a laundry treating apparatus, which selectively controls an electrifying operation of a photo-plasma tube based on whether a current operation stage of a hybrid washing mode is a specific stage, and combines the operation of the photo-plasma tube with the current operation stage of the hybrid washing mode, thereby enabling to obtain a good sterilizing effect while ensuring a washing effect.

First, possible implementations of the laundry management apparatus of the present invention are explained with reference to fig. 1 to 3.

As shown in fig. 1 to 3, the drum washing machine includes a housing 1, an outer tub 3 provided in the housing 1, and an inner tub 2 provided in the outer tub 3, the inner tub 2 being rotatable relative to the outer tub 3. The wall of the inner cylinder 2 is provided with a plurality of water holes, so that the inner cylinder 2 and the outer cylinder 3 are communicated with each other. When clothes are washed, the clothes to be washed are put into the inner cylinder 2, the drum washing machine is started, washing water circulates between the inner cylinder 2 and the outer cylinder 3 through the water through holes, and therefore the clothes to be washed can be washed better.

The optical plasma fresh air device 4 comprises a shell 41 and an optical plasma tube 42, wherein the optical plasma tube 42 is arranged into a U-shaped tube. The housing 41 has an air inlet 411 and an air outlet 412, the air inlet 411 being in communication with the environment. According to the orientation shown in fig. 1, the air outlet 412 is provided on the underside of the housing 41 and is sized to substantially conform to the underside of the housing 41 such that the housing 41 also substantially defines a downwardly opening open enclosure, and when assembled, the housing 41 is inverted over the outer side wall of the outer barrel 3 to define a relatively enclosed receiving space between the housing 41 and the outer side wall of the outer barrel 3. The installation seat 43 is arranged in the accommodating space, the light plasma tube 42 is arranged in the installation seat 43, and the light plasma tube 42 is arranged in the accommodating space, so that the light plasma tube 42 can be isolated from the external environment, dust in the environment can be prevented from being deposited on the light plasma tube 42 to influence the efficiency of ionizing air, moisture can make the light plasma tube 42 wet or even short-circuited, and the stable operation of the light plasma fresh air device 4 is ensured.

The outer cylinder 3 is provided with a through hole 31, and the air outlet 412 communicates with the through hole 31 so that air in the environment is caused to enter the housing 41 through the air inlet 411 by the negative pressure formed at the through hole 31 when the inner cylinder 2 rotates relative to the outer cylinder 3, and enters the outer cylinder 3 through the air outlet 412 and the through hole 31 after being ionized by the light plasma tube 42. In this way, when the inner tube 2 rotates relative to the outer tube 3, a negative pressure is generated at the through hole 31, and under the action of the negative pressure, air in the environment is sucked into the housing 41, and the light plasma tube 42 located in the housing 41 can generate hydroxyl radicals, free oxygen atoms and superoxide ion plasma substances by separating pure oxygen and water in the air when being electrified, and then gas containing the ionic substances enters the outer tube 3 through the gas outlet 412 and the through hole 31, and further enters the inner tube 2 communicated with the outer tube 3. As the ionic substances can effectively remove bacteria, viruses and the like, can decompose harmful substances such as volatilizable organic substances and the like into carbon dioxide and water, and can destroy cell membranes of bacteria so as to achieve the aim of bacteriostasis. Thus, bacteria, viruses and the like on the outer cylinder 3, the inner cylinder 2 and the clothes to be washed in the inner cylinder 2 can be killed by the ionic substances in the gas. That is, the application can effectively remove bacteria, viruses and the like on the outer cylinder 3, the inner cylinder 2 and the clothes to be washed positioned in the inner cylinder 2 through the photoplasma fresh air device 4, thereby obtaining better sterilization effect.

It should be noted that, the light plasma tube 42 may be configured in other possible forms such as a strip tube, a W-shaped tube, etc., and those skilled in the art may flexibly select a specific configuration of the light plasma tube 42 according to a specific application scenario without departing from the principles of the present application, so long as the light plasma tube 42 can ionize air to generate a gas containing ionic substances when energized.

It should be noted that, the size of the air outlet 412 may also be smaller than the size of the lower side of the housing 41, for example, the size of the air outlet 412 is approximately equal to the size of the air inlet 411, so that the housing 41 itself forms a space with a substantially rectangular cross section and is relatively closed, in which case the optical plasma tube 42 may be directly disposed in the housing 41. In this case, an air outlet pipe may be disposed at the air outlet 412, and communication between the air outlet 412 and the through hole 31 is achieved through the air outlet pipe. Obviously, in this case, the cross section of the housing 41 may also be provided in other possible shapes, such as oval, square, hexagonal, etc. The specific arrangement of the housing 41 and the air outlet 412 can be flexibly selected by those skilled in the art without departing from the principles of the present application, as long as the communication between the air outlet 412 and the through hole 31 can be realized, thereby ensuring the stable operation of the optical plasma fresh air device 4.

In one possible embodiment, the light plasma tube 42 of the present application can emit ultraviolet light with a wavelength of 170-190nm when energized, and ionize air to generate more ionic substances under the effect of the ultraviolet light with the wavelength, so that the gas containing ionic substances obtained after ionization by the light plasma tube 42 can remove more bacteria, viruses, etc., and thus a better sterilization effect can be obtained.

Obviously, the light plasma tube 42 can emit ultraviolet light of other wavelengths when energized. When the light plasma tube 42 emits ultraviolet light of other wavelengths, the ionized air generates less ionic substances than ultraviolet light of 170-190nm, but a certain sterilization effect can be obtained.

As shown in fig. 1 to 3 and according to the orientation shown in fig. 1, an air inlet 411 is provided on the upper side of the housing 41, which air inlet 411 is aligned with at least a portion of the through hole 31 when mounted, and at least a portion of the light plasma tube 42 is located between the air inlet 411 and the through hole 31. In this way, when the inner cylinder 2 rotates relative to the outer cylinder 3, the negative pressure generated by the inner cylinder can better suck air in the environment into the housing 41 through the air inlet 411. Even if the air in the environment is discharged through the through hole 31 immediately after entering the casing 41 through the air inlet 411 under the action of the negative pressure, the air can be fully contacted with the part of the light plasma tube 42 between the air inlet 411 and the through hole 31 and ionized to generate the gas containing the ionic substances, so that the situation that the air cannot be contacted with the light plasma tube 42 due to the formation of the air flow short circuit between the air inlet 411 and the through hole 31 and no ionic substances are generated can be avoided. That is, a part of the air introduced into the housing 41 is always sufficiently contacted with the optical plasma tube 42 and ionized, so that the gas introduced into the outer cylinder 3 through the through-hole 31 contains ionic substances, thereby obtaining a good sterilization effect.

It should be noted that, the air inlet 411 may be disposed on the left side or the right side of the housing 41, i.e., the air inlet 411 is not aligned with the through hole 31, in which case the light plasma tube 42 is located in the air channel formed between the air inlet 411 and the air outlet 412, i.e., at least a portion thereof is located between the air inlet 411 and the through hole 31. The specific placement orientation of air inlet 411 may be flexibly selected by those skilled in the art without departing from the principles of the present application, so long as it is ensured that air entering housing 41 via air inlet 411 is in sufficient contact with light plasma tube 42.

As shown in fig. 1 to 3, the photoplasma fresh air device 4 further includes a waterproof and breathable member, which is a waterproof and breathable membrane 44, the waterproof and breathable membrane 44 being configured to allow only gas to pass through. In the present application, the waterproof and breathable film 44 may be disposed at the through hole 31 by means of adhesion, screw connection, clamping connection, or the like. The waterproof and breathable film 44 is a novel polymer waterproof material and mainly comprises three layers: PP spunbond nonwoven fabric, PE polymer breathable film, PP spunbond nonwoven fabric. The waterproof and breathable film 44 achieves the purpose of preventing water from passing through by the following principle: in the state of water vapor, the water particles are very tiny, and can smoothly permeate the capillary tube to the other side according to the principle of capillary motion, so that the vapor permeation phenomenon occurs. After the water vapor is condensed into water drops, the particles become larger, and the water molecules cannot be smoothly separated from the water drops to permeate to the other side due to the action of the surface tension of the water drops (mutual 'pulling and counterbalance' among the water molecules), namely, the water permeation is prevented, so that the vapor permeable membrane has a waterproof function.

When the photoplasma fresh air device 4 is operated in this way, air in the environment enters the shell 41 through the air inlet 411, is ionized by the photoplasma tube 42, then passes through the waterproof breathable film 44 and enters the outer cylinder 3. Thus, even if the drum washing machine is in the washing process, more washing water splashes, and under the blocking effect of the waterproof and breathable film 44, the washing water in the outer drum 3 cannot enter the shell 41 through the through hole 31 and the air outlet 412, so that the stable operation of the optical plasma fresh air device 4 can be ensured.

The waterproof and breathable member may be an electromagnetic valve. Of course, the waterproof and breathable member may be a screw-type waterproof and breathable valve, a snap-type waterproof and breathable valve, a twist-clip type waterproof and breathable valve, a plug type waterproof and breathable valve, or other possible types. The person skilled in the art can flexibly select the specific arrangement form of the waterproof and breathable member according to the specific application scenario, as long as it allows only gas to pass through, without departing from the principle of the present application.

It will be appreciated that the photoplasma fresh air device 4 may not include a waterproof ventilation member, in which case, in order to avoid the influence of the wash water on the photoplasma fresh air device 4, the photoplasma fresh air device 4 may be disposed on the top side of the outer sidewall of the outer tub 3, or at a position close to the top side or other position higher than the level of the wash water.

As shown in fig. 1 to 3, the drum washing machine has a laundry putting port, which communicates with the inner tub 2, and is configured to be able to put laundry into the inner tub 2 therethrough. The through hole 31 is provided on the top side of the outer side wall of the outer tub 3 close to the laundry inlet (i.e., the top side of the outer side wall of the outer tub 3 to the left as viewed in fig. 2), so that communication between the outer tub 3 and the air outlet 412 can be achieved, a sterilization effect can be ensured, influence on the strength of the outer tub 3 can be reduced, and the service life of the laundry treatment apparatus can be ensured.

In this case, the through hole 31 may be provided at a position near the top side and below the top side, instead of being provided at the top side of the outer wall, and the through hole 31 may be provided at a position higher than the level of the washing water in the outer tub 3. The through hole 31 may not be provided on the outer side wall of the outer tub 3 near the laundry feed opening, but may be provided on the outer side wall of the middle portion of the outer tub 3 in the axial direction thereof, or the like. A person skilled in the art may flexibly select a specific setting position of the through hole 31 on the outer cylinder 3 according to a specific application scenario without departing from the principle of the present application, as long as communication between the air outlet 412 and the through hole 31 can be achieved.

As shown in fig. 1 to 3, the air inlet 411 communicates with the space between the housing 1 and the outer tube 3, so that when the inner tube 2 rotates relative to the outer tube 3, a negative pressure is formed at the through hole 31, and under the action of the negative pressure, air between the housing 1 and the outer tube 3 can be easily sucked into the case 41 through the air inlet 411.

It should be noted that, an air intake duct may be disposed at the air intake 411, in which case, a vent hole is disposed on the housing 1, and an end portion of the air intake duct away from the housing 41 communicates with the vent hole on the housing 1, so that communication between the air intake 411 and the environment can be achieved. Obviously, when the circulation duct is provided in the drum washing machine, the end of the air intake duct away from the housing 41 may also be communicated with the circulation duct. A person skilled in the art may flexibly select a specific arrangement of the air inlet 411 in communication with the environment without departing from the principles of the present application, as long as air in the environment can enter the housing 41 via the air inlet 411.

As shown in fig. 1 to 3, the optical plasma fresh air device 4 further includes a control module 45, where the control module 45 is connected to the optical plasma tube 42, and the control module 45 is configured to control the operation of the optical plasma tube 42, so as to ensure that the optical plasma fresh air device 4 operates better.

In this case, when the waterproof and breathable member is a solenoid valve, the solenoid valve is connected to the control module 45, and the control module 45 is provided so as to be able to control opening and closing of the solenoid valve.

The light plasma fresh air device 4 may not be provided with a control module alone, but may be a control chip of the drum washing machine itself, or a functional module or a functional unit of a general controller.

The drum washing machine includes a control panel (not shown) provided with an indicator lamp configured to display an operation state of the light plasma fresh air device 4. Specifically, for example, the indication lamp indicates that the optical plasma fresh air device 4 is in a normal operation state when the indication lamp indicates yellow, the indication lamp indicates that the optical plasma fresh air device 4 is in an operation completion state when the indication lamp indicates green, and the indication lamp indicates that the optical plasma fresh air device 4 is in an abnormal operation state when the indication lamp indicates red.

It should be noted that, the working states of the light plasma fresh air device 4 displayed by the indicator lamps with different colors are only described as an example, and obviously, the working states can also represent other working states, for example, the light plasma fresh air device 4 is in a normal operation state when the indicator lamp displays red, the light plasma fresh air device 4 is in an operation completion state when the indicator lamp displays green, and the light plasma fresh air device 4 is in an abnormal operation state when the indicator lamp displays yellow. Without deviating from the principle of the application, a person skilled in the art can flexibly select a specific implementation mode of the indicator light to display the working state of the optical plasma fresh air device 4 according to a specific application scene, so long as the working state of the optical plasma fresh air device 4 can be displayed through the indicator light.

In the present application, the drum washing machine is provided with a scent detection module provided in the inner tub, which is configured to be able to detect scent concentration in the cabinet. For example, the odor detection module may be an odor sensor, and the odor sensor is an odor identifier based on MEMS (english full name: microelectro MechanicalSystems) principle, which has advantages of high identification accuracy and high speed.

Obviously, the smell detection module can also be an olfactory cell chip, and the olfactory cell chip comprises a cell membrane, a gas sensor array, a processor and a signal transmitter, wherein the cell membrane is covered on the gas sensor array and is used for filtering smell molecules. The gas sensor array is used for detecting the filtered odor molecules and generating an electrical signal. The processor is connected with the gas sensor array and is used for processing the electric signals generated by the gas sensor array. The signal transmitter is connected with the processor and used for transmitting the electric signals processed by the processor. The specific setting form of the odor detection module can be flexibly selected by a person skilled in the art according to specific application scenes, so long as the odor concentration in the inner barrel can be detected through the odor detection module.

In the application, the mixed washing mode generally comprises a pre-water inlet stage, a washing stage, a rinsing stage and a spin-drying stage, wherein when the mixed washing mode is in the washing stage and the rinsing stage, more washing water is generally stored in the outer barrel. When the mixed washing mode is in the spin-drying stage, little washing water is in the outer barrel. When the mixed washing mode is in the stage before water inflow, no washing water exists in the outer cylinder.

In the present application, the optical plasma tube has a high-grade, a medium-grade and a low-grade, that is, the optical plasma tube can be operated at a high-grade frequency, a medium-grade frequency and a low-grade frequency, respectively, the frequency of the optical plasma tube is related to the number of ionic substances which can be generated by ionization, and the larger the frequency of the optical plasma tube is, the more ionic substances which can be generated by ionization are. Obviously, the light plasma tube can also have more or less gears such as four or five, or two, one, etc., and can be flexibly selected by a person skilled in the art according to specific application scenes.

Possible implementations of the control method of the drum washing machine of the present application are described below with reference to fig. 4 to 7.

As shown in fig. 4, in one possible embodiment, the control method of the present application includes:

S100: acquiring a washing mode of the drum washing machine;

s101: when the washing mode is a mixed washing mode, the current operation stage of the mixed washing mode is obtained;

s102: judging whether the current operation stage is a specific stage or not;

s103: based on the first judgment result, the electrifying operation of the optical plasma tube is selectively controlled.

In S100, a washing mode of the drum washing machine is acquired.

The washing mode of the drum washing machine may be preset by a user through a remote controller, a control panel on the drum washing machine, an APP communicating with the drum washing machine, or may be automatically determined by the drum washing machine according to factors such as the type of laundry, the number of laundry, the current season, and the like.

In S101, based on the washing pattern acquired in S100, if the washing pattern acquired in S100 is a hybrid washing pattern, a current operation phase of the hybrid washing pattern is acquired.

In S102, based on the current operation phase acquired in S101, it is determined whether the current operation phase is a specific phase. Wherein the specific stage comprises a pre-water inlet stage and a spin-drying stage.

It should be noted that, the specific stage may include only a pre-water-intake stage or a spin-drying stage.

In S103, the electrifying operation of the optical plasma tube is selectively controlled based on the first determination result in S102.

Through the control mode, when the washing mode is the hybrid washing mode, the electrifying operation of the light plasma tube is selectively controlled according to whether the current operation stage is a specific stage or not, so that the electrifying operation of the light plasma tube is combined with the current operation stage of the hybrid washing mode, and the outer cylinder, the inner cylinder and clothes in the inner cylinder can be disinfected while the washing effect is ensured, and a better degerming effect is obtained.

As shown in fig. 5, in one possible embodiment, the control method of the present invention further includes:

s200: acquiring a washing mode of the drum washing machine;

s201: when the washing mode is a mixed washing mode, the current operation stage of the mixed washing mode is obtained;

s202: judging whether the current operation stage is a specific stage, if so, executing S205; if not, executing S204;

s204: the electrifying operation of the optical plasma tube is not controlled;

s205: judging whether the specific stage is a spin-drying stage, if so, executing S206; if not, then S207 is performed;

s206: controlling the light plasma tube to run in a high-grade mode;

S207: controlling the inner cylinder to rotate;

s208: the light plasma tube is controlled to operate in a mid-range.

In S200, similar to S100, a washing mode of the drum washing machine is acquired.

In S201, based on the washing pattern acquired in S200, if the washing pattern acquired in S200 is a hybrid washing pattern, a current operation phase of the hybrid washing pattern is acquired.

In S202, based on the current operation stage obtained in S201, it is determined whether the current operation stage is a specific stage, if the current operation stage is not a specific stage, that is, the current operation stage is not a spin-drying stage and a pre-water inlet stage, that is, the current operation stage may be a washing stage, a rinsing stage, or the like, when the hybrid washing mode is in these operation stages, the washing water in the outer tub is more, the washing water is more likely to be sputtered into the housing of the optical plasma fresh air device, if the optical plasma tube is controlled to perform the power-on operation at this time, the optical plasma tube may be damaged, and if the optical plasma tube is not controlled to perform the power-on operation at this time, S204 is performed.

If the current operation phase is a specific phase, it is further judged whether the specific phase is a spinning phase, i.e., S205 is performed.

If the specific stage is a spin-drying stage in which the washing water is substantially not present in the tub and the hybrid washing mode is already being operated toward the end, the light plasma tube is controlled to operate at a high level, that is, to perform S206, so that the light plasma tube can ionize the air to generate a gas containing more ionic substances. When the mixed washing mode is in a spin-drying stage, the inner cylinder rotates at a high speed relative to the outer cylinder, negative pressure can be formed at the through hole, and under the action of the negative pressure, air in the environment can enter the shell through the air inlet and enter the outer cylinder through the air outlet and the through hole after being ionized by the light plasma tube. Therefore, the gas containing more ionic substances can be introduced into the outer cylinder, so that the outer cylinder, the inner cylinder and clothes in the inner cylinder can be better disinfected, and a better sterilization effect can be obtained in a shorter time.

It should be noted that if the specific stage is a spin-drying stage, the light plasma tube may be controlled to run in a middle or low stage, however, if the light plasma tube is controlled to run in a high stage, a better sterilization effect is obtained, but the electric energy consumed in the running process of the light plasma fresh air device is increased. If the control plasma pipes are all operated in low gear, the sterilizing effect which can be obtained correspondingly is weakened.

If the specific stage is a pre-water inlet stage, at which the hybrid washing mode has not been started, the drum is controlled to rotate, that is, S207 is performed, the laundry can be disturbed by the rotation of the drum, and a negative pressure can be formed at the through hole when the drum rotates.

In step S208, after the inner cylinder is controlled to rotate, the optical plasma tube is controlled to operate at a medium range, and the air is ionized by the optical plasma tube to generate a gas containing more ionic substances.

After the inner cylinder is controlled to rotate, the optical plasma tube can be controlled to operate in a high-grade or low-grade mode, and accordingly the sterilization effect of the control mode is weakened.

Through the rotation of inner tube and the operation of light plasma tube with the middle grade like this, under the effect of the negative pressure that forms in through-hole department because of the inner tube rotates, the air in the environment can enter into the casing through the air intake, and in the urceolus is entered into through air outlet and through-hole after being ionized by light plasma tube, the gas that contains more ionic substance just also has entered into in the urceolus, thereby just also can be before the operation mixes washing mode to urceolus, inner tube and be located the clothing of inner tube and disinfect better, obtain better degerming effect, promote user experience.

It should be noted that, the optical plasma tube may be controlled to operate in a middle gear at the same time or before the inner tube is controlled to rotate. On the premise of not deviating from the principle of the application, a person skilled in the art can flexibly select and control the specific time for the light plasma tube to run in the middle range according to specific application scenes, so long as a better degerming effect can be obtained in the stage before water inflow.

Through the control mode, the electrifying operation of the light plasma tube is not controlled when the current operation stage is not a specific stage, the light plasma tube is controlled to operate in a high-grade mode when the specific stage is a spin-drying stage, the inner cylinder is controlled to rotate when the specific stage is a water inlet front stage, and then the light plasma tube is controlled to operate in a medium-grade mode, so that the washing water can be prevented from entering the light plasma fresh air device to damage the light plasma fresh air device while a good sterilization effect is obtained.

The light plasma tube may be controlled to operate in a medium or low stage when the specific stage is a spin-drying stage, and may be controlled to operate in a high or low stage when the specific stage is a pre-water-intake stage. Of course, the light plasma tube may be controlled to be energized only in the spin-drying stage, or may be energized only in the pre-water-intake stage. On the premise of not deviating from the principle of the application, a person skilled in the art can flexibly select specific time and operating gear of the electrifying operation of the optical plasma tube according to specific application scenes, so long as a better degerming effect can be obtained.

In one possible embodiment, a waterproof ventilation valve is provided between the photoplasma fresh air device and the outer cylinder, through which the photoplasma fresh air device can be connected or disconnected from the outer cylinder. When the mixed washing mode is in the spin-drying stage, after the control light plasma tube runs in a high-grade mode, namely after the execution of S206, since the washing water in the outer cylinder is relatively less in the spin-drying stage, no washing water enters the light plasma fresh air device even if the waterproof ventilation valve is opened, at the moment, the waterproof ventilation valve is controlled to be opened, and the outer cylinder is communicated with the inner cylinder, so that the light plasma fresh air device is communicated with the outer cylinder. In the spin-drying stage, the inner cylinder rotates at a high speed relative to the outer cylinder to form negative pressure at the through hole, under the action of the negative pressure, air in the environment can be sucked into the shell, and after the electrified light plasma tube is ionized to generate gas containing ionic substances, the gas enters the outer cylinder through the through hole and the air outlet, and the outer cylinder, the inner cylinder and clothes in the inner cylinder are sterilized, so that a better sterilizing effect is obtained.

The opening of the waterproof air-permeable valve can also be controlled at the same time or before the electrifying operation of the light plasma tube is controlled. On the premise of not deviating from the principle of the application, a person skilled in the art can flexibly select the specific moment for controlling the opening of the waterproof and breathable valve according to the specific application scene, so long as a better degerming effect can be obtained.

As shown in fig. 6, in one possible embodiment, the control method of the present invention further includes:

s300: before controlling the opening of the waterproof and breathable valve, acquiring the running time length of the spin-drying stage;

s301: judging whether the running time is longer than a threshold time, if so, executing S302; if not, executing S303;

s302: controlling the opening of the waterproof ventilation valve;

s303: the opening of the waterproof air-permeable valve is not controlled.

In S300, the run time length of the spin-drying stage is obtained before the waterproof and breathable valve is controlled to be opened.

Obviously, the running time of the spin-drying stage may not be acquired before the waterproof and breathable valve is controlled to be opened.

In S301, based on the operated duration obtained in S300, it is determined whether the operated duration is greater than a threshold duration, if the operated duration is greater than the threshold duration, which indicates that a period of time has elapsed during the spin-drying stage, at which time the tub has substantially no wash water, and at which time the waterproof and breathable valve is controlled to be opened, that is, S302 is performed, so that the tub is communicated with the optical plasma fresh air device.

If the running duration is less than or equal to the threshold duration, which indicates that the spin-drying stage is just started or the spin-drying stage is performed for a relatively short time, because a small amount of washing water still exists in the outer barrel at the initial stage of the spin-drying stage, if the light plasma fresh air device is arranged at the lower side or below the outer barrel, if the waterproof ventilation valve is opened at this time, the washing water enters the light plasma fresh air device to cause damage, and at this time, the opening of the waterproof ventilation valve is not controlled, i.e. S303 is executed.

Through the control mode, whether the waterproof ventilation valve is opened or not is controlled based on the size of the running time of the spin-drying stage, so that no matter what direction the light plasma fresh air device is arranged in the outer cylinder, the situation that the light plasma fresh air device is damped or even damaged due to the fact that washing water enters the light plasma fresh air device can be avoided, stable running of the light plasma fresh air device can be better ensured, and better sterilization effect is obtained.

In one possible embodiment, a waterproof ventilation valve is arranged between the optical plasma fresh air device and the outer cylinder, and the optical plasma fresh air device and the outer cylinder can be communicated or not communicated through the waterproof ventilation valve. When the mixed washing mode is in the pre-water inlet stage, after the inner cylinder is controlled to rotate, that is, after the step S207 is executed, the outer cylinder is in the pre-water inlet stage, and no washing water exists, so that the waterproof air-permeable valve can be controlled to be opened, and the outer cylinder is communicated with the inner cylinder, so that the optical plasma fresh air device is communicated with the outer cylinder. Because the rotation of the inner cylinder can form negative pressure at the through hole, under the action of the negative pressure, air in the environment can be sucked into the shell, and after the electrified light plasma tube is ionized to generate gas containing ionic substances, the gas enters the outer cylinder through the through hole and the air outlet, so that a better sterilization effect is obtained.

It should be noted that, the opening of the waterproof and breathable valve may be controlled simultaneously with or before the rotation of the inner cylinder. On the premise of not deviating from the principle of the application, a person skilled in the art can flexibly select the specific moment for controlling the opening of the waterproof and breathable valve according to the specific application scene, so long as a better degerming effect can be obtained.

In one possible embodiment, the photoplasma fresh air device is arranged above the outer cylinder. The drum washing machine of the present application further includes a water inlet valve configured to supply water into the drum when the water inlet valve is opened. When the drum washing machine is used for washing clothes, the water inlet valve is opened to feed washing water into the inner drum, and when the water is not required to be fed into the inner drum, the water inlet valve is closed. In this case, after the light plasma tube is controlled to operate in the middle gear for the first preset period of time, that is, after the first preset period of time is executed S208, the light plasma tube has been operated for a period of time, more gas containing ionic substances has been fed into the inner cylinder, bacteria, viruses and the like on the outer cylinder, the inner cylinder and the laundry have been basically killed, at this time, the water inlet valve is controlled to be opened, water is fed into the inner cylinder, and the laundry treatment apparatus is controlled to operate in the hybrid washing mode, and laundry is started to be washed. After the water inlet valve is controlled to be opened, bacteria, viruses and the like on the outer cylinder, the inner cylinder and clothes are basically killed, the operation gear of the photoplasma tube is reduced, the sterilization requirement can be met, and at the moment, the photoplasma tube is controlled to operate in a low gear until the operation of the mixed washing mode is finished. By such a control method, the washing effect and the sterilization effect are ensured, and at the same time, the electric energy can be saved.

It should be noted that, the light plasma tube may be controlled to operate in a low gear while the inlet valve is controlled to be opened. Of course, the light plasma tube may be continuously controlled to operate in a medium range while or after the inlet valve is controlled to be opened. Obviously, the light plasma tube can be controlled to operate in a middle gear or a low gear for a preset period of time after the operation of the mixed washing mode is finished. On the premise of not deviating from the principle of the application, a person skilled in the art can flexibly select and control the operation gear and the operation time length of the optical plasma tube according to specific application scenes, so long as a better degerming effect can be obtained.

In one possible implementation manner, after the light plasma tube is controlled to operate for a second preset period of time, that is, after the light plasma tube is controlled to operate for the second preset period of time in S206 and S208, the light plasma tube has been operated for a period of time, more gas containing ionic substances has been sent into the inner cylinder, and bacteria, viruses and the like on the outer cylinder, the inner cylinder and clothes have been basically killed, at this time, the light plasma is controlled to stop operating. Therefore, better sterilization effect can be obtained, and meanwhile, electric energy is saved.

A possible implementation of the control method of the present application for determining whether to acquire the current operation phase of the hybrid washing mode based on the magnitude of the scent concentration in the drum is explained below with reference to fig. 7.

As shown in fig. 7, in one possible embodiment, the control method of the present invention further includes:

s400: before the current operation stage of the mixed washing mode is obtained, the odor concentration in the inner cylinder is obtained;

s401: judging whether the odor concentration is greater than a concentration threshold, if so, executing S402; if not, executing S403;

s402: acquiring the current operation stage of the mixed washing mode;

s403: the current run phase of the hybrid washing mode is not acquired.

In S400, before the current operation stage of the hybrid washing mode is obtained, the odor concentration in the inner tub is obtained through the odor detection module.

In S401, based on the odor concentration in the inner tub obtained in S400, it is determined whether the odor concentration is greater than a concentration threshold, if the odor concentration is greater than the concentration threshold, it is indicated that there is an odor in the inner tub, and there may be more bacteria, viruses, and the like, at this time, the current operation stage of the hybrid washing mode is obtained, that is, S402 is executed. And then judging whether the current operation stage is a specific stage or not based on the obtained current operation stage, and selectively controlling the electrified operation or the non-electrified operation of the optical plasma tube according to a judgment result.

If the odor concentration is less than or equal to the concentration threshold, it indicates that no odor exists in the inner cylinder, no bacteria, viruses, etc., or only few bacteria, viruses, etc., exist in the inner cylinder, and at this time, the current operation stage of the hybrid washing mode is not acquired, that is, S403 is performed. Under the condition, the outer cylinder, the inner cylinder and clothes in the inner cylinder do not need to be disinfected, and the electrified operation of the light plasma tube is not further controlled.

Through the control mode, the electrified operation of the optical plasma tube can be controlled at a more proper time, so that the sterilization effect is ensured, and meanwhile, the electric energy is saved.

Note that, the odor concentration in the inner tub may not be acquired until the current operation stage of the hybrid washing mode is acquired. Instead, the current operation phase of the hybrid washing mode is directly acquired after the washing mode is determined to be the hybrid washing mode.

In summary, in the preferred technical solution of the present invention, when the washing mode is the hybrid washing mode, the current operation stage of the hybrid washing mode is obtained, whether the current operation stage is a specific stage is determined, and the energizing operation of the optical plasma tube is selectively controlled based on the first determination result, so that the operation of the optical plasma tube is combined with the current operation stage of the hybrid washing mode, and a better sterilization effect can be obtained while the washing effect is ensured. When the current operation stage is not a specific stage, the optical plasma tube is not controlled to be electrified for operation. When the current operation stage is a specific stage, further judging whether the specific stage is a spin-drying stage or a pre-water inlet stage, if the specific stage is the spin-drying stage, controlling the light plasma tube to operate in a high grade, and if the specific stage is the pre-water inlet stage, controlling the inner cylinder to rotate, and controlling the light plasma tube to operate in a medium grade. Through the control mode, the washing water can be prevented from entering the light plasma fresh air device to damage the light plasma fresh air device while a good sterilization effect is obtained. When the mixed washing mode is in the spin-drying stage, after the light plasma tube is controlled to run in a high-grade mode, the waterproof air-permeable valve is controlled to be opened, and before the waterproof air-permeable valve is controlled to be opened, the waterproof air-permeable valve is further controlled to be opened or not opened according to the running time length of the spin-drying stage, so that the situation that the washing water enters the light plasma fresh air device to cause the washing water to be damped or even damaged can be better avoided. When the mixed washing mode is in a pre-water inlet stage, after the light plasma tube is controlled to operate for a first preset time period in a middle range, the water inlet valve is controlled to be opened, the drum washing machine is controlled to operate the mixed washing mode, and after the water inlet valve is controlled to be opened, the light plasma tube is controlled to operate to the end of the mixed washing mode in a low range, so that electric energy can be saved while the washing effect and the degerming effect are ensured.

Although the steps are described in the above-described sequential order in the above-described embodiments, it will be appreciated by those skilled in the art that in order to achieve the effects of the present embodiments, the steps need not be performed in such order, and may be performed simultaneously (in parallel) or in reverse order, and such simple variations are within the scope of the present application.

Thus far, the technical solution of the present application has been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of protection of the present application is not limited to these specific embodiments. Equivalent modifications and substitutions for related technical features may be made by those skilled in the art without departing from the principles of the present application, and such modifications and substitutions will fall within the scope of the present application.

Claims

1. A control method of a laundry treatment apparatus, characterized in that the laundry treatment apparatus includes a housing, an outer tub provided in the housing, and an inner tub provided in the outer tub, the inner tub being in communication with the outer tub, the inner tub being provided rotatably with respect to the outer tub,

The clothes treatment equipment is provided with a light plasma fresh air device, the light plasma fresh air device comprises a shell and a light plasma tube arranged in the shell, the shell is provided with an air inlet and an air outlet, the air inlet is communicated with the environment, the light plasma tube can ionize air when being electrified so as to generate gas containing ionic substances,

the outer cylinder is provided with a through hole, the air outlet is communicated with the through hole, so that air in the environment enters the shell through the air inlet under the action of negative pressure formed at the through hole when the inner cylinder rotates relative to the outer cylinder and enters the outer cylinder through the air outlet and the through hole after being ionized by the light plasma tube,

the control method comprises the following steps:

acquiring a washing mode of the laundry treatment apparatus;

when the washing mode is a mixed washing mode, acquiring the current operation stage of the mixed washing mode;

judging whether the current operation stage is a specific stage or not;

selectively controlling the electrifying operation of the optical plasma tube based on the first judging result;

wherein the specific stage comprises a pre-water inlet stage and/or a spin-drying stage.

2. The control method according to claim 1, wherein the step of selectively controlling the electrifying operation of the optical plasma tube based on the first determination result further comprises:

if the current operation stage is a specific stage, further judging whether the specific stage is a spin-drying stage or a pre-water inlet stage;

and controlling the electrifying operation of the optical plasma tube based on the second judging result.

3. The control method according to claim 2, wherein the optical plasma tube has a high gear, a medium gear, and a low gear, and the step of controlling the optical plasma tube to be operated by energization based on the second determination result further comprises:

and if the specific stage is a spin-drying stage, controlling the light plasma tube to operate in a high-grade mode.

4. A control method according to claim 3, wherein a waterproof ventilation valve is provided between the photoplasma fresh air device and the outer tub, the control method further comprising:

and controlling the waterproof ventilation valve to be opened at the same time, before or after controlling the light plasma tube to run in a high-grade mode.

5. The control method according to claim 4, characterized in that the control method further comprises:

Before controlling the waterproof ventilation valve to be opened, acquiring the operated time length of the spin-drying stage;

comparing the operated time length with a threshold time length;

if the operated duration is longer than the threshold duration, controlling the waterproof and breathable valve to be opened;

and if the operated duration is less than or equal to the threshold duration, not controlling the waterproof ventilation valve to be opened.

6. The control method according to claim 2, wherein the optical plasma tube has a high gear, a medium gear, and a low gear, and the step of controlling the optical plasma tube to be operated by energization based on the second determination result further comprises:

if the specific stage is a pre-water inlet stage, controlling the inner cylinder to rotate;

and controlling the optical plasma tube to run in a middle gear at the same time, before or after controlling the rotation of the inner cylinder.

7. The control method according to claim 6, wherein a waterproof ventilation valve is provided between the photoplasma fresh air device and the outer tub, the control method further comprising:

and controlling the waterproof ventilation valve to be opened at the same time, before or after controlling the rotation of the inner cylinder.

8. The control method according to claim 6, wherein the photoplasma fresh air device is arranged above the outer cylinder, the clothes treating apparatus further comprises a water inlet valve which is arranged to be capable of supplying water into the inner cylinder when the water inlet valve is opened,

The control method further includes:

after the light plasma tube is controlled to operate in a middle gear for a first preset time period, controlling the water inlet valve to be opened, and controlling the clothes treatment equipment to operate in the mixed washing mode;

and simultaneously or after the inlet valve is controlled to be opened, controlling the light plasma tube to operate at a low gear until the mixed washing mode operation is finished.

9. The control method according to claim 2, characterized in that the control method further comprises:

and after the optical plasma tube is controlled to operate for a second preset time period, controlling the optical plasma tube to stop operating.

10. The control method according to claim 1, characterized in that the control method further comprises:

before the current operation stage of the mixed washing mode is obtained, the odor concentration in the inner cylinder is obtained;

comparing the odor concentration to a concentration threshold;

if the odor concentration is greater than the concentration threshold, acquiring the current operation stage of the mixed washing mode;

and if the odor concentration is less than or equal to the concentration threshold value, not acquiring the current operation stage of the mixed washing mode.