CN116815448A

CN116815448A - Control method of laundry treating apparatus

Info

Publication number: CN116815448A
Application number: CN202210288171.3A
Authority: CN
Inventors: 孙俣; 金学峰; 贾东岳; 丁晓瑞; 耿雪峰; 许升
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: acquiring a washing mode of the laundry treatment apparatus; when the washing mode is a rapid washing mode, acquiring the current operation stage of the rapid washing mode; judging whether the current operation stage is a spin-drying stage or not; based on the judgment result, the electrifying operation of the optical plasma tube is selectively controlled. According to the invention, the electrifying operation of the light plasma tube is selectively controlled based on whether the current operation stage of the rapid washing mode is a spin-drying stage, and the operation of the light plasma tube is combined with the current operation stage of the rapid washing mode, so that the clothes can be washed rapidly to meet the requirements of users, and meanwhile, a better degerming effect can be obtained.

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 rapid washing mode, acquiring the current operation stage of the rapid washing mode; judging whether the current operation stage is a spin-drying stage or not; and selectively controlling the electrifying operation of the optical plasma tube based on the judging result.

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 determination result" further includes: and if the current operation stage is a spin-drying stage, controlling the electrifying operation of the optical plasma tube.

In a preferred embodiment of the above control method, the step of "controlling the power-on operation of the optical plasma tube" further includes: the optical plasma tube is controlled to operate at its highest frequency.

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 or before controlling the electrifying operation of the light plasma tube.

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 duration with a first threshold duration; if the operated duration is longer than the first threshold duration, controlling the waterproof ventilation valve to be opened; and if the operated duration is less than or equal to the first threshold duration, opening the waterproof ventilation valve is not controlled.

In a preferred technical solution of the above control method, the control method further includes: after the light plasma tube is electrified to run, calculating the difference time length between the total time length of the spin-drying stage and the running time length; comparing the difference time length with a second threshold time length; and selectively controlling the optical plasma tube to stop operating based on the comparison result.

In a preferred embodiment of the above control method, the step of "selectively controlling the optical plasma tube to stop operating based on the comparison result" further includes: if the difference time length is longer than the second threshold time length, controlling the optical plasma tube to stop running after running the second threshold time length; and if the difference time length is smaller than or equal to the second threshold time length, controlling the optical plasma tube to stop running after the difference time length is controlled to run.

In a preferred technical solution of the above control method, the control method further includes: and after the optical plasma tube is electrified and operated for a preset time, controlling the optical plasma tube to stop operation.

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 determination result" further includes: and if the current operation stage is not the spin-drying stage, not controlling the electrifying operation of the optical plasma tube.

In a preferred technical solution of the above control method, the control method further includes: before the current operation stage of the rapid washing mode is obtained, the odor concentration in the inner barrel 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 rapid 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 rapid 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 when the washing mode is a quick washing mode, judging whether the current operation stage is a spin-drying stage, and selectively controlling the electrifying operation of the light plasma tube based on a judging result. Through such control mode, when the washing mode is the quick washing mode, the electrifying operation of the light plasma tube is selectively controlled according to whether the current operation stage is the spin-drying stage or not, and the operation of the light plasma tube is combined with the current operation stage of the quick washing mode, so that the washing of clothes can be rapidly completed to meet the requirements of users, and meanwhile, the outer cylinder, the inner cylinder and the clothes positioned in the inner cylinder can be killed, and a better sterilization effect is obtained.

Further, if the current operation stage is a spin-drying stage, it is indicated that the washing water in the outer barrel is little, and the washing water does not enter the light plasma fresh air device basically to cause the light plasma fresh air device to be damped or even damaged, and at the moment, the light plasma tube is controlled to be electrified for operation. Because the inner cylinder in the spin-drying stage rotates fast relative to the outer cylinder, negative pressure can be formed at the through hole when the inner cylinder rotates, under the action of the negative pressure, air in the environment can be sucked into the shell through the air inlet, and after the light plasma tube in an electrified running state ionizes to generate gas containing ionic substances, the gas enters the outer cylinder through the air outlet and the through hole, and the outer cylinder, the inner cylinder and clothes in the inner cylinder are sterilized, so that a better sterilizing effect is obtained.

Preferably, the step of controlling the powered operation of the optical plasma tube further comprises: the optical plasma tube is controlled to run at the highest frequency, so that the optical plasma tube can ionize air to generate gas containing more ionic substances, and the outer cylinder, the inner cylinder and clothes in the inner cylinder can be better disinfected, and a better degerming effect is obtained.

Further, a waterproof ventilation valve is arranged between the optical plasma fresh air device and the outer cylinder, and the optical plasma fresh air device can be communicated with or not communicated with the outer cylinder through the waterproof ventilation valve. 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 basically even if the waterproof ventilation valve is opened. In the application, the waterproof ventilation valve is controlled to be opened at the same time or before the electrifying operation of the optical plasma tube is controlled, and the outer cylinder is communicated with the inner cylinder, so that the optical plasma fresh air device is communicated with the outer cylinder, and the outer cylinder, the inner cylinder and clothes in the inner cylinder can be sterilized, thereby obtaining better sterilizing effect.

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 first threshold time length, if the operated time length is longer than the first 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 first 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 initial stage of the spin-drying stage, if the light plasma fresh air device is arranged at the lower side or below the outer cylinder, 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, after the optical plasma tube is electrified and operated, calculating the difference time length between the total time length and the operated time length of the spin-drying stage, comparing the difference time length with the second threshold time length, if the difference time length is longer than the second threshold time length, indicating that the operation time of the spin-drying stage is shorter, and if the remaining difference time length is longer, controlling the optical plasma tube to operate after the second threshold time length is reached, and stopping the operation. If the difference time is smaller than or equal to the second threshold time, indicating that the operation time of the spin-drying stage is longer, and the remaining difference time is shorter, at the moment, controlling the light plasma tube to stop operation after the difference time is controlled. Through such control mode, make the light plasma tube operate the duration of relatively less duration in difference time duration and the second threshold value duration, can ensure degerming effect like this, can not prolong the operation duration of quick washing mode again, satisfy the demand of user's quick washing, can also practice thrift the electric energy.

In another possible implementation manner, after the optical plasma tube is electrified and operated for a preset period of time, the optical plasma tube is operated for a longer time, more gas containing ionic substances is sent into the inner cylinder, bacteria, viruses and the like on the outer cylinder, the inner cylinder and clothes are basically killed, and at the moment, the optical plasma tube is controlled to stop operation, so that a better sterilization effect can be obtained, and electric energy can be saved.

If the current operation stage is not the spin-drying stage, for example, the current operation stage is a washing stage, in order to avoid damage to the light plasma tube in the power-on state due to the entry of washing water into the light plasma fresh air device, at this time, the power-on operation of the light plasma tube is not controlled.

Further, before the current operation stage of the rapid 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 is odorous, and more bacteria, viruses and the like possibly exist in the inner cylinder, at the moment, the current operation stage of the rapid washing mode is obtained, whether the current operation stage is a spin-drying stage is judged based on the current operation stage, and then the operation of the optical plasma tube is selectively controlled according to a judging result. If the odor concentration is smaller than or equal to the concentration threshold value, the odor is not present in the inner cylinder, and the disinfection treatment is not needed, and at the moment, the present operation stage of the rapid washing mode is not acquired. Through such control mode to can control the circular telegram operation of light plasma tube in more suitable opportunity, under the prerequisite of accomplishing clothing washing fast, ensure degerming effect, can also practice thrift the electric energy.

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 invention;

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 invention;

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

FIG. 5 is a flow chart of a control method prior to controlling the opening of the waterproof and venting valve in accordance with one embodiment of the invention;

FIG. 6 is a flow chart of a control method for controlling the shutdown of the photoplasma based on the magnitude of the difference between the total duration and the run duration of the spin-drying phase, in accordance with one embodiment of the present invention;

FIG. 7 is a control flow diagram of determining whether to acquire the current operational phase of the fast wash mode based on the magnitude of the scent concentration within the drum in accordance with one embodiment of the present invention.

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 invention provides a control method of clothes treatment equipment, which selectively controls the electrifying operation of the light plasma tube based on whether the current operation stage of the rapid washing mode is a spin-drying stage, and combines the operation of the light plasma tube with the current operation stage of the rapid washing mode, so that the rapid washing clothes can be ensured to meet the requirements of users, and meanwhile, a better sterilization effect can be obtained.

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 provided at the through hole 31. In the present application, the waterproof and breathable member is a waterproof and breathable film 44, and the waterproof and breathable film 44 is provided so as to allow only gas to pass therethrough. 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.

The through hole 31 may be provided not on the top side of the outer wall but at a position close to the top side and below the top side, or at a position close to the lower side of the outer wall, or at other possible positions, as long as the position of the through hole 31 is ensured to be 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 Mechanical Systems) 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 quick washing mode generally comprises a washing stage, a rinsing stage and a spin-drying stage, and when the quick washing mode is in the washing stage and the rinsing stage, more washing water is generally stored in the outer barrel. When the quick washing mode is in the spin-drying stage, little washing water is in the outer barrel.

Possible implementations of the control method of the laundry treating apparatus of the present application are explained 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 rapid washing mode, acquiring the current operation stage of the rapid washing mode;

s102: judging whether the current operation stage is a spin-drying stage, if so, executing S104; if not, executing S103;

s103: the electrifying operation of the optical plasma tube is not controlled;

s104: and controlling the electrifying operation of the optical plasma tube.

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 rapid washing pattern, a current operation stage of the rapid washing pattern is acquired.

In S102, based on the current operation stage obtained in S101, it is determined whether the current operation stage is a spin-drying stage, and if the current operation stage is not a spin-drying stage, for example, the current operation stage is a washing stage or a rinsing stage, and there is more washing water in the outer cylinder, in order to avoid damage to the light plasma tube in the energized state caused by the washing water entering the light plasma fresh air device, at this time, the energizing operation of the light plasma tube is not controlled, that is, S103 is executed.

If the current operation stage is a spin-drying stage, which means that the washing water in the outer barrel is little, and the washing water does not enter the photoplasma fresh air device basically to cause the washing water to be damped or even damaged, at this time, the photoplasma tube is controlled to be electrified for operation, namely S104 is executed.

Because the inner cylinder in the spin-drying stage rotates fast relative to the outer cylinder, negative pressure can be formed at the through hole when the inner cylinder rotates, under the action of the negative pressure, air in the environment can be sucked into the shell through the air inlet, and after the light plasma tube in an electrified running state ionizes to generate gas containing ionic substances, the gas enters the outer cylinder through the air outlet and the through hole, and the outer cylinder, the inner cylinder and clothes in the inner cylinder are sterilized, so that a better sterilizing effect is obtained.

Through the control mode, whether the current operation stage of the rapid washing mode is in the spin-drying stage or not is based on the fact that the optical plasma tube is selectively controlled to be electrified and operated, namely, the optical plasma tube is controlled to be electrified and operated when the current operation stage is in the spin-drying stage, and the optical plasma tube is not controlled to be electrified and operated when the current operation stage is not in the spin-drying stage, so that the rapid washing of clothes can be ensured to be completed to meet the user requirements, good degerming effect can be obtained, damage to the optical plasma tube can be avoided, electric energy is saved, and user experience can be effectively improved.

It should be noted that, when the current operation stage is not in the spin-drying stage, the light plasma tube may be controlled to be electrified for operation, and in this case, the through hole needs to be disposed at the top side of the outer side wall of the outer cylinder or a position close to the top side of the outer side wall, so that even if a certain amount of washing water is stored in the outer cylinder, the washing water is not easy to enter into the housing of the light plasma fresh air device.

In one possible implementation manner, controlling the operation of the optical plasma tube in S104 specifically includes: the optical plasma tube is controlled to operate at its highest frequency. For example, if the highest frequency of the light plasma tube is 8w, when the current operation stage is the spin-drying stage, the light plasma tube is controlled to operate at the frequency of 8w, so that the light plasma tube can ionize air to generate gas containing more ionic substances, and the gas sent into the inner cylinder also contains more ionic substances, thereby better sterilizing the outer cylinder, the inner cylinder and clothes in the inner cylinder and quickly obtaining better sterilizing effect in a shorter time. It is obvious that S104 may also control the operation of the light plasma tube at other frequencies, for example, the light plasma tube has a high level, a medium level and a low level, and at this time, the light plasma tube may also be controlled to operate at the medium level or the low level, so that the sterilization effect of the control manner may be reduced correspondingly.

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. Under the condition, before the control light plasma tube is electrified to run, the waterproof ventilation valve is controlled to be opened, and the outer cylinder is communicated with the inner cylinder, so that the outer cylinder is communicated with the light plasma fresh air device, the outer cylinder, the inner cylinder and clothes in the inner cylinder can be sterilized, and a good sterilization effect can be obtained.

The opening of the waterproof air-permeable valve can be controlled while 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.

The following describes a possible implementation manner of the control method of the present application when the current operation stage of the fast washing mode is in the spin-drying stage by providing a waterproof and breathable valve between the photoplasm fresh air device and the outer tub with reference to fig. 5 and 6.

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

s200: before controlling the opening of the waterproof and breathable valve, acquiring the running time length of the spin-drying stage;

s201: judging whether the running time is longer than a first threshold time, if so, executing S203; if not, executing S202;

s202: the opening of the waterproof ventilation valve is not controlled;

s203: and controlling the waterproof and breathable valve to be opened.

In S200, the running duration of the spin-drying stage is obtained before the waterproof and breathable valve is controlled to be opened.

In S201, based on the operated duration obtained in S200, it is determined whether the operated duration is greater than the first threshold duration, if the operated duration is less than or equal to the first threshold duration, it is indicated that the spin-drying stage is just started or the spin-drying stage is performed for a relatively short period of time, because a small amount of washing water still exists at the initial stage of the spin-drying stage, if the light plasma fresh air device is disposed at the lower side or below the outer cylinder, if the water-proof air-permeable valve is opened at this time, these washing water will enter into the light plasma fresh air device to cause damage thereof, and at this time, the water-proof air-permeable valve is not controlled to be opened, i.e. S202 is performed.

If the running time is longer than the first threshold time, the spin-drying stage is performed for a period of time, and at the moment, the outer barrel is basically free of washing water, and at the moment, the waterproof air-permeable valve is controlled to be opened, that is, S203 is executed, so that the outer barrel is communicated with the light plasma fresh air device.

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.

It should be noted that, before the waterproof and air-permeable valve is controlled to be opened, the running duration of the spin-drying stage may not be obtained, but the waterproof and air-permeable valve may be directly controlled to be opened.

In order to better control the shutdown of the optical plasma tube, as shown in fig. 6, in another possible embodiment, the control method of the present invention further comprises:

s300: calculating the difference time between the total time length of the spin-drying stage and the running time length;

s301: judging whether the difference time length is greater than a second threshold time length, if so, executing S302; if not, executing S303;

s302: stopping the operation after controlling the optical plasma tube to operate for a second threshold time;

s303: and stopping the operation after controlling the operation difference time of the optical plasma tube.

In S300, based on the operated duration of the spin-drying stage acquired in S200, a difference duration between the total duration of the spin-drying stage and the operated duration is calculated.

In S301, based on the difference time duration calculated in S300, it is determined whether the difference time duration is greater than a second threshold time duration, if the difference time duration is greater than the second threshold time duration, which indicates that the time of the spin-drying stage is shorter, and the remaining difference time duration is longer, at this time, the operation is stopped after the optical plasma tube is controlled to operate for the second threshold time duration, that is, S302 is executed.

If the difference time is less than or equal to the second threshold time, the operation time of the spin-drying stage is longer, and the remaining difference time is shorter, at this time, the operation is stopped after the difference time is controlled to operate the optical plasma tube, that is, S303 is executed.

Through the control mode, the light plasma tube is enabled to be relatively smaller in the operation difference time length and the second threshold time length, so that the sterilization effect can be ensured, the operation time length of a rapid washing mode can not be prolonged, the rapid washing requirement of a user is met, and the electric energy can be saved.

It should be noted that, the light plasma tube may be controlled to be energized to the end of the spin-drying stage, that is, the light plasma tube may be controlled to stop at the end of the spin-drying stage. On the premise of not deviating from the principle of the application, a person skilled in the art can flexibly select specific time for controlling the optical plasma tube to stop running according to specific application scenes, so long as a better degerming effect can be obtained on the premise of not affecting quick washing.

A possible implementation of the control method of the present application for determining whether to acquire the current operation phase of the rapid washing mode based on the magnitude of the odor concentration in the inner tub will be described below with reference to fig. 7.

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

s400: before the current operation stage of the rapid washing mode is obtained, the odor concentration in the inner barrel 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 a rapid washing mode;

s403: the current run phase of the fast wash mode is not acquired.

In S400, the odor concentration in the inner tub is obtained by the above-mentioned odor detection module before the current operation stage of the quick washing mode is obtained, that is, before S101 is performed.

In S401, based on the odor concentration in the inner cylinder 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 cylinder at present, and there may be more bacteria, viruses, and the like, and the disinfection process is required, and at this time, the current operation stage of the rapid washing mode is obtained, that is, S402 is executed. And judging whether the optical plasma tube is a spin-drying stage or not based on the obtained current operation stage, and selectively controlling the electrified operation of the optical plasma tube according to a judging 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 rapid washing mode is not acquired, that is, S403 is executed. 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 optical plasma tube can be controlled to be electrified to run at a more proper time, and the sterilization effect is ensured and the electric energy can be saved on the premise of rapidly finishing clothes washing.

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

In summary, in the preferred technical scheme of the present invention, when the washing mode is the fast washing mode, the current operation stage of the fast washing mode is obtained, whether the current operation stage is a spin-drying stage is determined, and the energizing operation of the light plasma tube is selectively controlled based on the determination result, so that the operation of the light plasma tube is combined with the current operation stage of the fast washing mode, thereby ensuring that the washing of the clothes is completed fast to meet the user requirement and obtaining a better sterilization effect. If the current operation stage is a spin-drying stage, controlling the electrified operation of the photoplasma tube so as to perform sterilization treatment on the outer cylinder, the inner cylinder and clothes positioned in the inner cylinder, thereby obtaining a better sterilization effect. If the current operation stage is not the spin-drying stage, the electrifying operation of the optical plasma tube is not controlled. Through such control mode, can be when guaranteeing to accomplish the washing of clothing in order to satisfy the user's demand fast, obtain better degerming effect, can also avoid damaging the light plasma tube, promote user experience. The waterproof ventilation valve is controlled to be opened at the same time or before the electrified operation of the light plasma tube is controlled, and the waterproof ventilation valve is controlled to be opened or not opened based on the size of the operated time length of the spin-drying stage before the waterproof ventilation valve is controlled to be opened, so that the phenomenon that washing water enters the light plasma fresh air device to cause the washing water to be damped or even damaged can be better avoided. The operation of the optical plasma tube is stopped after the operation difference time length or after the second threshold time length is controlled based on the difference time length between the total time length and the operated time length of the spin-drying stage, or the optical plasma tube is controlled to stop after the operation of the optical plasma tube is performed for a preset time length, so that the sterilization effect can be ensured, the operation time length of a rapid washing mode can not be prolonged, the requirement of a user for rapid washing can be met, and the electric energy can be saved.

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 rapid washing mode, acquiring the current operation stage of the rapid washing mode;

judging whether the current operation stage is a spin-drying stage or not;

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

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 determination result further comprises:

And if the current operation stage is a spin-drying stage, controlling the electrifying operation of the optical plasma tube.

3. The control method according to claim 2, wherein the step of controlling the electrifying operation of the optical plasma tube further comprises:

the optical plasma tube is controlled to operate at its highest frequency.

4. The control method according to claim 2, characterized in that 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 or before controlling the electrifying operation of the light plasma tube.

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 duration with a first threshold duration;

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

and if the operated duration is less than or equal to the first threshold duration, opening the waterproof ventilation valve is not controlled.

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

after the light plasma tube is electrified to run, calculating the difference time length between the total time length of the spin-drying stage and the running time length;

comparing the difference time length with a second threshold time length;

and selectively controlling the optical plasma tube to stop operating based on the comparison result.

7. The control method according to claim 6, wherein the step of selectively controlling the light plasma tube to stop operation based on the comparison result further comprises:

if the difference time length is longer than the second threshold time length, controlling the optical plasma tube to stop running after running the second threshold time length;

and if the difference time length is smaller than or equal to the second threshold time length, controlling the optical plasma tube to stop running after the difference time length is controlled to run.

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

and after the optical plasma tube is electrified and operated for a preset time, controlling the optical plasma tube to stop operation.

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

And if the current operation stage is not the spin-drying stage, not controlling the electrifying operation of the optical plasma tube.

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

before the current operation stage of the rapid washing mode is obtained, the odor concentration in the inner barrel 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 rapid 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 rapid washing mode.