CN114836948A - Washing machine and control method thereof - Google Patents

Abstract

The application discloses washing machine and control method thereof relates to the technical field of washing machines, and can enable the washing machine to use alcohol to disinfect and sterilize clothes on the premise of ensuring the use safety of the alcohol. The washing machine includes: casing, urceolus and inner tube, urceolus setting are in the casing, and the inner tube is located the urceolus in, and rotate with the urceolus and be connected, and washing machine still includes: a fan; a water inlet system for guiding the washing water into the outer tub; the alcohol spraying device is used for spraying alcohol into the inner cylinder; the alcohol concentration sensor is used for detecting the alcohol concentration in the inner barrel; a controller configured to: in the process of executing the sterilization and disinfection program, controlling the alcohol spraying device to spray alcohol into the inner cylinder; acquiring a first alcohol concentration in the inner barrel through an alcohol concentration sensor; if the first alcohol concentration is greater than or equal to the first alcohol concentration threshold value, controlling the fan and the water inlet system to work; and if the first alcohol concentration is smaller than the first alcohol concentration threshold value, controlling the inner barrel to rotate.

Description

Washing machine and control method thereof

Technical Field

The application relates to the technical field of washing machines, in particular to a washing machine and a control method thereof.

Background

With the change of living environment, the development of industrialization process and the progress of science and technology, the concept of "disinfection and sterilization" is gradually emphasized by people.

At present, washing machines are mostly provided with sterilization and disinfection functions, such as sterilization and disinfection by means of high temperature, ultraviolet rays, ozone and the like, but the sterilization and disinfection methods have little effect on virus killing.

In the related art, the washing machine with a good disinfection effect is provided, namely, the 84 disinfection solution is used for sterilizing and disinfecting clothes, since the 84 disinfection solution mainly contains hypochlorite and needs to be diluted for use during use, and the strong oxidizing property of the hypochlorite can corrode parts of the washing machine, the disinfection mode is not suitable for long-time use, and the long-time use can reduce the service life of the washing machine, thereby affecting the user experience.

Disclosure of Invention

The embodiment of the application provides a washing machine and a control method thereof, which can enable the washing machine to use alcohol to disinfect and sterilize clothes on the premise of ensuring the use safety of the alcohol.

In a first aspect, an embodiment of the present application provides a washing machine, including: casing, urceolus and inner tube, urceolus setting are in the casing, and the inner tube is located the urceolus in, and rotate with the urceolus and be connected, and washing machine still includes: the fan is arranged in the shell and provided with an air outlet, and the air outlet faces the inner cylinder and is used for blowing air into the inner cylinder; a water inlet system for guiding the washing water into the outer tub; the alcohol spraying device is used for spraying alcohol into the inner cylinder; the alcohol concentration sensor is used for detecting the alcohol concentration in the inner barrel; a controller configured to: in the process of executing the sterilization and disinfection program, controlling the alcohol spraying device to spray alcohol into the inner cylinder; acquiring a first alcohol concentration in the inner barrel through an alcohol concentration sensor; if the first alcohol concentration is greater than or equal to the first alcohol concentration threshold value, controlling the fan and the water inlet system to work; and if the first alcohol concentration is smaller than the first alcohol concentration threshold value, controlling the inner barrel to rotate.

The technical scheme provided by the embodiment of the application at least has the following beneficial effects: after the washing machine enters a sterilization and disinfection program, the spraying device is controlled to spray alcohol into the inner barrel, so that the inner barrel of the washing machine has sterilization and disinfection conditions. However, it is easily conceived that alcohol has a special property, and if the alcohol concentration in the inner tub of the washing machine is too high, explosion or combustion danger may occur. Therefore, after alcohol is sprayed in the inner barrel of the washing machine, the first alcohol concentration in the inner barrel of the washing machine needs to be obtained through the alcohol concentration sensor, and when the first alcohol concentration is larger than or equal to the first alcohol concentration threshold value, the fact that the first alcohol concentration in the inner barrel of the washing machine is high at present and the danger of combustion or explosion exists is shown, so that the fan and the water inlet system are controlled to work to reduce the alcohol concentration in the inner barrel of the washing machine. Until the alcohol concentration collected by the alcohol concentration sensor is lower than the first alcohol concentration threshold, the explosion or combustion danger does not occur, so that the inner barrel is controlled to rotate, alcohol molecules can be attached to clothes, and the purposes of sterilization and disinfection are achieved. Therefore, the clothes are sterilized and disinfected by the alcohol instead of using the corrosive disinfectant, so that the corrosion consumption of the corrosive disinfectant on the internal materials of the washing machine can be avoided, the service life of the washing machine is ensured, and the user experience is improved.

In some embodiments, the controller is further configured to: after the rotation time of the inner cylinder reaches a first time, controlling the inner cylinder to stop rotating and controlling a water inlet system to work; after the working time of the water inlet system reaches a second time, controlling the water inlet system to stop working, and acquiring a second alcohol concentration in the inner barrel through the alcohol concentration sensor; if the second alcohol concentration is greater than or equal to the second alcohol concentration threshold value, controlling the water inlet system to work; if the second alcohol concentration is less than the second alcohol concentration threshold, judging whether the number of times that the alcohol spraying device sprays alcohol is more than or equal to the target number of times that the alcohol spraying device sprays alcohol; and if the number of times of spraying the alcohol by the alcohol spraying device is less than the target number of times of spraying, controlling the alcohol spraying device to spray the alcohol into the inner cylinder again.

In some embodiments, the controller is further configured to: acquiring the weight of the laundry placed in the inner tub in response to a user's confirmation of an instruction to perform a sterilization and disinfection program; and determining the target spraying times according to the weight of the clothes.

In some embodiments, the alcohol spray device comprises: the alcohol storage box is fixedly connected with the shell; a first connecting line; a first spraying device; one end of the first connecting pipeline is communicated with the alcohol storage box, and the other end of the first connecting pipeline is communicated with the first spraying device; the first spraying device is provided with a first spraying opening, and the first spraying opening faces the inner cylinder and is used for spraying alcohol into the inner cylinder.

In some embodiments, the alcohol spray device further comprises: and the liquid level sensor is arranged in the alcohol storage box and used for detecting the alcohol liquid level in the alcohol storage box.

In some embodiments, a water intake system comprises: a water inlet pipe for introducing washing water into the outer tub; a second connecting line; a second spraying device; one end of the second connecting pipeline is communicated with the alcohol storage box, and the other end of the second connecting pipeline is communicated with the second spraying device; the second spraying device is provided with a second spraying port facing the outer barrel and used for spraying the washing water into the outer barrel.

In some embodiments, the washing machine further comprises: one end of the third connecting pipeline is communicated with the water inlet pipe, and the other end of the third connecting pipeline is communicated with the alcohol storage box; the water drainage pipe is communicated with the alcohol storage box; the first valve is arranged on the third connecting pipeline and used for controlling the washing water to enter the alcohol storage box; and the second valve is arranged on the drain pipe and is used for controlling the liquid in the alcohol storage box to flow out.

In some embodiments, the controller is further configured to: acquiring the number of times that the alcohol spraying device sprays alcohol; and after the number of times of spraying alcohol by the alcohol spraying device reaches the target number of times of spraying, controlling the first valve and the second valve to be opened.

In some embodiments, the controller is further configured to: receiving a selection instruction of a user for a sterilization and disinfection program;

responding to a selection instruction of a user for the sterilization and disinfection program, and acquiring a third alcohol concentration in the inner barrel through the alcohol concentration sensor; if the third alcohol concentration is greater than or equal to the first alcohol concentration threshold value, controlling the fan and the water inlet system to work; if the third alcohol concentration is smaller than the first alcohol concentration threshold value, sending out prompt information, wherein the prompt information is used for prompting a user to add alcohol into the alcohol spraying device.

In a second aspect, an embodiment of the present application provides a control method of a washing machine, including: in the process of executing a sterilization and disinfection program, acquiring a first alcohol concentration in the inner barrel through an alcohol concentration sensor; if the first alcohol concentration is greater than or equal to the first alcohol concentration threshold value, controlling the fan and the water inlet system to work;

and if the first alcohol concentration is smaller than the first alcohol concentration threshold value, controlling the alcohol spraying device to spray alcohol into the inner cylinder.

In a third aspect, an embodiment of the present application provides a controller, including: one or more processors; one or more memories; wherein the one or more memories are used for storing computer program code comprising computer instructions, which when executed by the one or more processors, cause the controller to perform the control method of the washing machine provided by the second aspect.

In a fourth aspect, the present application provides a computer-readable storage medium, where the computer-readable storage medium includes computer instructions, which, when controlled on a computer, cause the computer to execute the method provided in the second aspect and possible implementation manners.

In a fifth aspect, embodiments of the present invention provide a computer program product directly loadable into a memory and containing software code, which when loaded and executed by a computer is able to carry out the method as provided in the second aspect and possible implementations.

It should be noted that all or part of the computer instructions may be stored on the computer readable storage medium. The computer readable storage medium may be packaged with or separately from a processor of the controller, which is not limited in this application.

For the beneficial effects described in the second aspect to the fifth aspect in the present application, reference may be made to the beneficial effect analysis of the first aspect, which is not described herein again.

Drawings

Fig. 1 is a schematic structural diagram of a washing machine according to an embodiment of the present disclosure;

fig. 2 is a schematic perspective view of a washing machine according to an embodiment of the present disclosure;

fig. 3 is a second schematic structural diagram of a washing machine according to an embodiment of the present application;

fig. 4 is a third schematic structural diagram of a washing machine according to an embodiment of the present invention;

fig. 5 is a second schematic perspective view of a washing machine according to an embodiment of the present application;

fig. 6 is a third schematic perspective view of a washing machine according to an embodiment of the present invention;

fig. 7 is a fourth schematic structural diagram of a washing machine according to an embodiment of the present application;

fig. 8 is a schematic diagram of a circuit connection structure of a washing machine according to an embodiment of the present disclosure;

fig. 9 is a fourth schematic perspective view of a washing machine according to an embodiment of the present disclosure;

fig. 10 is a second schematic diagram of a circuit connection structure of a washing machine according to an embodiment of the present application;

FIG. 11 is a schematic structural view of an alcohol storage case according to an embodiment of the present application;

FIG. 12 is a third schematic view of a circuit connection structure of a washing machine according to an embodiment of the present invention

Fig. 13 is a flowchart illustrating a control method of a washing machine according to an embodiment of the present disclosure;

fig. 14 is a second flowchart of a control method of a washing machine according to an embodiment of the present application;

fig. 15 is a flowchart illustrating a logic process of a washing machine according to an embodiment of the present disclosure.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified.

In the description of the present application, it is to be noted that the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, unless explicitly stated or limited otherwise. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art. In addition, when a pipeline is described, the terms "connected" and "connected" are used in this application to have a meaning of conducting. The specific meaning is to be understood in conjunction with the context.

In the embodiments of the present application, words such as "exemplary" or "for example" are used to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary" or "e.g.," is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the word "exemplary" or "such as" is intended to present concepts related in a concrete fashion.

With the development of times, the washing machine gradually enters every family, and brings convenience to daily life of people. Along with the continuous improvement of living standard of people, people also put forward higher requirements on washing of the washing machine, namely, besides certain expectation on cleaning performance, the washing machine is expected to provide effective disinfection function for clothes, especially underwear and infant clothes, and disinfection is very needed.

In the related art, there is a washing machine having a sterilization function, which sterilizes and sterilizes laundry using 84 disinfectant, however, since the main component of the 84 disinfectant is hypochlorite, parts of the washing machine are corroded due to strong oxidation of the hypochlorite, and some special laundry materials (for example, silk, wool, etc.) are not suitable for sterilization using 84 disinfectant. Accordingly, the related art washing machine has certain limitations.

Based on this, the embodiment of the application provides a control method of a washing machine, after the washing machine enters a sterilization and disinfection program, the spraying device is controlled to spray alcohol into the inner cylinder, so that the inner cylinder of the washing machine has sterilization and disinfection conditions. However, it is easily conceived that alcohol has a special property, and if the alcohol concentration in the inner tub of the washing machine is too high, explosion or combustion danger may occur. Therefore, after alcohol is sprayed in the inner barrel of the washing machine, the first alcohol concentration in the inner barrel of the washing machine needs to be obtained through the alcohol concentration sensor, and when the first alcohol concentration is larger than or equal to the first alcohol concentration threshold value, the fact that the first alcohol concentration in the inner barrel of the washing machine is high at present and the danger of combustion or explosion exists is shown, so that the fan and the water inlet system are controlled to work to reduce the alcohol concentration in the inner barrel of the washing machine. Until the alcohol concentration collected by the alcohol concentration sensor is lower than the first alcohol concentration threshold, the explosion or combustion danger does not occur, so that the inner barrel is controlled to rotate, alcohol molecules can be attached to clothes, and the purposes of sterilization and disinfection are achieved. Therefore, the clothes are sterilized and disinfected by the alcohol instead of using the corrosive disinfectant, so that the corrosion consumption of the corrosive disinfectant on the internal materials of the washing machine can be avoided, the service life of the washing machine is ensured, and the user experience is improved.

Fig. 1 shows a schematic structural diagram of a washing machine provided in an embodiment of the present application, and as shown in fig. 1, the washing machine 100 provided in the embodiment of the present application can sterilize clothes, so as to ensure the service life of the washing machine 100, and the sterilization mode of the washing machine 100 can be applied to clothes made of various materials, thereby satisfying the multifunctional requirement of a user on the washing machine 100 and improving the user experience.

Fig. 2 shows a schematic perspective view of a washing machine according to an embodiment of the present application, and as shown in fig. 1 and 2, the washing machine 100 includes: a housing 10 (not shown in fig. 2 for ease of viewing), an outer cylinder 20, an inner cylinder 30, an alcohol storage cartridge 40, a first connecting line 50, and a first spraying device 60.

Wherein the tub 20 is disposed inside the casing 10, and the casing 10 is used to protect and shield internal components (e.g., controller, circuit structure, etc.) of the washing machine 100.

In a possible implementation, the material of the housing 10 may be a metal material.

Alternatively, the housing 10 may be made of an aluminum alloy, which is rustproof and has a certain hardness, so that the internal components may be protected from damage when the washing machine is impacted by external force. In addition, since the aluminum alloy is light in weight, the overall weight of the washing machine 100 can be reduced, the transportation is facilitated, and the transportation cost of the washing machine 100 is reduced.

As shown in fig. 1 and 2, the inner cylinder 30 is located in the outer cylinder 20, the inner cylinder 30 is used for accommodating clothes, the inner cylinder 30 is coaxially arranged with the outer cylinder 20, and the inner cylinder 30 is rotatably connected with the outer cylinder 20. That is, the inner cylinder 30 can rotate in its axial direction.

In addition, an alcohol storage case 40 is used to store alcohol, and the alcohol storage case 40 is fixedly connected to the housing 10. Alternatively, the alcohol storage cartridge 40 may be disposed within the housing 10 and fixedly attached to the housing 10. Alternatively, the alcohol storage box 40 may be disposed outside the housing 10 and fixedly connected to the housing 10.

The fixed connection may be a detachable fixed connection, such as a threaded connection, a pin connection, or the like, and the fixed connection may also be a non-detachable fixed connection, such as an adhesive connection, a welding connection, or the like, which is not limited in this application.

Alternatively, the alcohol storage box 40 may have a regular cubic structure, such as a square, a triangular prism, etc., and the alcohol storage box 40 may also have an irregular cubic structure, which is not limited in this application and can be set as required.

In addition, one end of the first connection pipe 50 is communicated with the alcohol storage box 40, and the other end of the first connection pipe 50 is communicated with the first spraying device 60, so that the alcohol in the alcohol storage box 40 can flow to the first spraying device 60. The first spraying device 60 has a first spraying port 601, and the first spraying port 601 faces the inside of the inner cylinder 30 and sprays alcohol into the inner cylinder 30.

One or more first spray openings 601 may be provided, which is not limited in this application. It can be understood that, in order to improve the spraying effect of the first spraying device 60, if the first spraying openings 601 are plural, the plural first spraying openings 601 are arranged in an array and all face the inside of the inner cylinder 30, so that the alcohol sprayed by the first spraying device 60 is uniformly distributed.

It will be appreciated that the washing machine 100 generally includes a motor drivingly connected (e.g., belt drive, gear drive, etc.) to the drum 30. When the motor is started, the rotating shaft of the motor rotates to rotate the inner tub 30 of the washing machine 100, thereby turning over the laundry in the inner tub 30. This application embodiment is through setting up first spray set 60 to the clothing that makes first spray set 60 spray in the first mouth of spraying sprays to inner tube 30, because the clothing in the inner tube 30 can drive the clothing upset, thereby can improve the disinfection area of clothing, strengthens the disinfection effect of clothing.

Fig. 3 is a schematic structural diagram of another washing machine according to an embodiment of the present disclosure, and in some embodiments, as shown in fig. 3, a clothes placing opening 11 is formed in a housing 10, and an inner drum 30 faces the clothes placing opening 11. The clothes inlet 11 is used for a user to conveniently put clothes into the washing machine 100; or to facilitate the user to take out the laundry from the washing machine 100. The first spraying port 601 is disposed at the clothes placing port 11, and is used for spraying alcohol into the inner cylinder 30. Thus, by arranging the first spraying port 601 at the clothes placing port 11, when the inner cylinder 30 rotates, the first spraying port 601 does not rotate along with the inner cylinder 30, thereby improving the spraying uniformity of the clothes and enhancing the sterilizing and disinfecting effect of the clothes.

Fig. 4 shows a schematic structural diagram of another washing machine provided in an embodiment of the present application, and in other embodiments, as shown in fig. 4, the washing machine 100 further includes: the door body 12 is movably connected (e.g., hinged) with the casing 10, the door body 12 can cover the clothes placing opening 11, so as to prevent water or clothes in the inner cylinder 30 from being thrown out of the casing 10 through the clothes placing opening 11 during washing, and the first spraying opening 601 can also be arranged on the door body 12, so that when the inner cylinder 30 rotates, the first spraying opening 601 cannot rotate along with the inner cylinder 30, and thus the uniformity of alcohol spraying of the first spraying opening is improved.

Fig. 5 shows a schematic perspective view of a washing machine according to an embodiment of the present application, in order to improve the spraying effect of the first spraying port 601, in some embodiments, as shown in fig. 5, the washing machine 100 further includes: a pressure pump 51, the pressure pump 51 is disposed on the first connecting pipeline 50, and is used for conveying the alcohol in the alcohol storage box 40 to the first spraying device 60. Thus, the alcohol flowing to the first spray port 601 is sprayed from the first spray port 601 by the pressure pump 51, and the volume of the alcohol droplets sprayed from the first spray port 601 can be reduced, thereby improving the uniformity of the alcohol sprayed from the first spray port 601 and improving the spraying effect of the first spray port 601.

Since alcohol is flammable, when the washing machine 100 sprays alcohol to sterilize the laundry, the alcohol in the washing machine 100 has a high solubility, and thus danger is likely to occur. Therefore, in order to improve the safety of the washing machine 100, fig. 6 illustrates a schematic perspective view of the washing machine according to the embodiment of the present application. In some embodiments, as shown in fig. 6, the washing machine 100 further includes: a water inlet pipe 70, a second connecting pipe 52 and a second spraying device 61.

Among them, the water inlet pipe 70 is used to introduce the washing water into the tub 20, i.e., the water inlet pipe 70 is generally communicated with a faucet, and the washing water in the faucet is introduced into a detergent box of the washing machine 100, and finally the mixed water (the washing water is mixed with the detergent) is introduced into the tub 20.

In addition, one end of the second connecting pipeline 52 is communicated with the water inlet pipe 70, and the other end is communicated with the second spraying device 61; as shown in fig. 7, the second spray means 61 has a second spray port 611, and the second spray port 611 faces the outer tub 20 for spraying the washing water into the outer tub 20.

The materials of the second connecting pipeline 52 and the water inlet pipe 70 can refer to the description of the first connecting pipeline 50, which is not described in detail in this application.

In one possible implementation, as shown in fig. 7, the inner cylinder 30 is located between the clothes placing opening 11 and the second spraying device 61. The second spray port 611 is oriented in the same direction as the first spray port 601, and the second spray port 611 is used to spray the washing water to the inner wall surface of the outer tub 20.

In another possible implementation, the second spray port 611 is located on the circumferential wall surface of the outer tub 20, and the second spray port 611 faces the circumferential inner wall surface of the outer tub 20 for spraying the washing water to the circumferential inner wall surface of the outer tub 20.

Fig. 8 is a schematic diagram illustrating a circuit connection structure of a washing machine according to an embodiment of the present application, and in some embodiments, the washing machine 100 further includes: a controller 80, as shown in fig. 8, the controller 80 is electrically connected to both the first spraying device 60 and the second spraying device 61; the controller 80 is configured to: the controller 80 controls the first spraying device 60 to be opened; or, after the controller 80 controls the first spraying device 60 to be closed, the second spraying device 61 is controlled to be opened; or the controller 80 controls the second spray device 61 to be closed.

Wherein the controller 80 controls the turning on or off of the first spray device 60 may be triggered by a manual operation of a user. In this way, the user can control the opening or closing of the first spraying device 60 and the second spraying device 61 through the controller 80, and the experience effect of the user is improved.

It is understood that the related art washing machine 100 is generally provided with a plurality of washing options, a user selects any one of the washing options, and the controller 80 of the washing machine 100 performs a corresponding washing process according to the washing option selected by the user, which may include, for example: large clothes washing, down clothes washing, quick washing and the like. This can improve the intellectualization of the washing machine 100 and improve the user experience.

In order to enhance the volatilization of alcohol molecules in the inner tub 30, fig. 9 shows a schematic perspective view of a washing machine according to an embodiment of the present application, and in some embodiments, as shown in fig. 9, the washing machine 100 further includes: the fan 90 is arranged in the housing 10, the fan 90 has an air outlet 91, and the air outlet 91 faces the inside of the inner barrel 30 and is used for blowing air into the inner barrel 30. Thus, the fan 90 can blow air into the inner tub 30 to blow the alcohol molecules in the inner tub 30 into the outer tub 20, thereby increasing the volatilization of the alcohol molecules, reducing the time required for the volatilization of the alcohol in the inner tub 30, and reducing the time required for the sterilization process of the washing machine 100.

It will be understood that, in a possible implementation, the air outlet 91 is also provided at the clothes placing opening 11. Thus, if the inner cylinder 30 is located between the clothes placing opening 11 and the second spraying device 61, the air blown out from the air outlet 91 can directly bring the alcohol molecules in the inner cylinder 30 to the second spraying device 61, and the alcohol molecules are mixed into the washing water sprayed from the second spraying opening 611 to be taken away from the inner cylinder 30. Thereby taking away the alcohol molecules in the inner tub 30 in time and improving the safety of the washing machine 100.

In another possible implementation manner, the air outlet 91 may also be disposed on the door body 12, and reference may be made to the description of the first spraying port 601 on the door body 12, which is not repeated herein.

In order to further improve the intelligence of the washing machine 100, fig. 10 shows another schematic circuit connection structure of the washing machine provided in the embodiment of the present application, and in some embodiments, as shown in fig. 10, the controller 80 is further electrically connected to the fan 90; the controller 80 is further configured to: after the first spraying device 60 is controlled to be closed, the second spraying device 61 and the fan 90 are controlled to be opened. Therefore, after the controller 80 controls the first spraying device 60 to be closed, the second spraying device 61 and the fan 90 can be automatically and precisely opened, after the washing machine 100 disinfects the clothes, the user does not need to perform additional operation, the washing machine 100 automatically and timely discharges alcohol molecules in the inner barrel 30, and the safety of the washing machine 100 is improved.

Since alcohol is flammable and explosive and has high risk of being stored in the alcohol storage case 40 for a long time, fig. 11 illustrates a structural view of an alcohol storage case provided in an embodiment of the present application, and in some embodiments, as shown in fig. 11, the washing machine 100 further includes: a third connecting line 53, a drain 71, a first valve (not shown in fig. 11) and a second valve (not shown in fig. 11). Wherein, one end of the third connecting pipeline 53 is communicated with the water inlet pipe 70, and the other end of the third connecting pipeline 53 is communicated with the alcohol storage box 40; the drain pipe 71 communicates with the alcohol storage box 40; a first valve is provided on the third connection pipe 53 for controlling the washing water to enter the alcohol storage box 40; a second valve is provided on the drain pipe 71 for controlling the outflow of the liquid in the alcohol storage cartridge 40.

Thus, when the washing machine 100 sterilizes the laundry, the washing water in the water inlet pipe 70 flows into the alcohol storage box 40, and the residual alcohol in the alcohol storage box 40 is discharged out of the washing machine 100 along the water outlet pipe 71, thereby improving the safety of the washing machine 100.

Fig. 12 is a schematic diagram illustrating an electrical connection structure of another washing machine according to an embodiment of the present disclosure, and in some embodiments, as shown in fig. 12, the controller 80 is further electrically connected to both the first valve 531 and the second valve 711 and is configured to control the first valve 531 and the second valve 711 to open or close; the controller 80 is further configured to: after controlling both the first and second showers 60 and 61 to be closed, both the first and second valves 531 and 711 are controlled to be opened.

In this manner, when the alcohol molecules in the drum 30 are discharged, the controller 80 automatically controls the first valve 531 and the second valve 711 to be opened to allow the washing water to enter the alcohol storage box 40 and discharge the alcohol in the alcohol storage box 40 to the outside of the washing machine 100.

It will be appreciated that in order to reduce the waste of alcohol, in some embodiments a level sensor is provided in the alcohol storage cartridge 40 for indicating the maximum level of alcohol that the cartridge 40 can hold. Therefore, a user can pour alcohol according to the liquid level sensor, and waste of alcohol caused by excessive introduced alcohol is avoided.

The embodiments provided in the present application will be described in detail below with reference to the accompanying drawings.

As shown in fig. 13, an embodiment of the present application provides a control method of a washing machine, which is applied to a controller in the above washing machine, and the method includes the following steps:

s101, controlling an alcohol spraying device to spray alcohol into the inner cylinder in the process of executing the sterilization and disinfection program.

In some embodiments, after the washing machine detects that the user puts the clothes into the washing tub through the weight sensor, the voice prompt function of the washing machine is triggered, and then the washing machine sends out voice prompt information which is used for prompting the user to select a washing program.

Illustratively, the voice prompt functionality may be implemented as: the voice prompt device sends out voice prompt contents of 'please select washing program'. If the user needs to sterilize and disinfect the clothes, an instruction for selecting a sterilization and disinfection program is issued to the washing machine.

Wherein, the user can send the instruction for selecting the sterilization and disinfection program to the washing machine through at least one of the following ways:

the first way is as follows: the user can select the sterilization and disinfection program through the man-machine interactive display.

Alternatively, the display may be a touch screen display, and the user selects the washing course by clicking on the screen, or the display may be a non-touch screen display, and the user may select the washing course by physical keys disposed beside the display.

For example, when the display of the washing machine is a touch screen type display, after the voice prompt device gives a voice prompt of "please select the washing program", the user may select the sterilization program by clicking the "sterilization program" on the display screen.

For example, when the display of the washing machine is a non-touch screen type display, after the voice prompt device gives a voice prompt of "please select a washing program", the user may select the sterilization program by pressing the physical button "sterilization program".

And (2) a second way: the user can select the sterilization and disinfection program through voice.

For example, after the voice prompt device issues a voice prompt of "please select a washing program", the user selects the washing program by voice, such as issuing a voice "select a disinfection program", and select a disinfection program.

Optionally, after the user selects the sterilization program, in response to the operation of the user selecting the sterilization program, the inner drum of the washing machine rotates, so that the clothes are turned over, and the alcohol spraying device is controlled to spray alcohol into the inner drum.

In some embodiments, when the alcohol spraying device sprays alcohol into the inner barrel, the alcohol spraying time is determined by the alcohol spraying flow rate of the first spraying port.

Optionally, a flow rate sensor is arranged on the first spraying port, when the first spraying port sprays alcohol, the flow rate sensor can collect alcohol spraying flow rate, then the collected alcohol spraying flow rate is sent to the controller, and after the controller receives the alcohol spraying flow rate, the alcohol spraying flow rate and the total amount of alcohol to be sprayed are determined according to the alcohol spraying flow rate, and the alcohol spraying duration is determined.

S102, acquiring a first alcohol concentration in the inner barrel through an alcohol concentration sensor.

In some embodiments, the alcohol concentration sensor obtains a first alcohol concentration in the inner barrel after the alcohol spray device sprays alcohol into the inner barrel.

Alternatively, the alcohol concentration sensor may obtain the alcohol concentration a plurality of times within a preset time period (for example, 3 seconds) after the alcohol spraying device sprays the alcohol into the inner cylinder, and calculate an average value of the alcohol concentrations obtained a plurality of times, and use the average value as the first alcohol concentration. Thus, the first alcohol concentration can reflect the alcohol concentration of the inner cylinder more accurately.

S103, judging whether the first alcohol concentration is larger than or equal to a first alcohol concentration threshold value or not.

Wherein the first alcohol concentration threshold is less than the lower limit of the explosion limit of alcohol in air.

If the first alcohol concentration is greater than or equal to the first alcohol concentration threshold, it means that there is a high risk that the first alcohol concentration in the inner tub of the washing machine is too high, so step S104 is performed to reduce the alcohol concentration in the inner tub of the washing machine. If the first alcohol concentration is less than the first alcohol concentration threshold, which indicates that the alcohol concentration in the inner tub of the washing machine is within the safe range, step S105 is performed to perform a sterilization operation on the laundry in the inner tub of the washing machine.

And S104, controlling the fan and the water inlet system to work.

It should be noted that the fan can blow the air containing alcohol molecules in the inner drum of the washing machine, so that the air enters the outer drum of the washing machine. Meanwhile, the water inlet system guides the washing water into the outer barrel, alcohol molecules are dissolved in the washing water after encountering the washing water in the outer barrel, and then are discharged out of the washing machine along with the washing water, so that the alcohol concentration in the inner barrel of the washing machine is reduced.

And S105, controlling the inner cylinder to rotate.

It should be noted that the rotation of the inner tub of the washing machine can make the alcohol molecules in the inner tub adhere to the surface of the clothes, so as to achieve the purpose of sterilization.

Steps S101-S105 bring at least the following beneficial effects: after the washing machine enters a sterilization and disinfection program, the spraying device is controlled to spray alcohol into the inner barrel, so that the inner barrel of the washing machine has sterilization and disinfection conditions. However, it is easily conceived that alcohol has a special property, and if the alcohol concentration in the inner tub of the washing machine is too high, explosion or combustion danger may occur. Therefore, after alcohol is sprayed in the inner barrel of the washing machine, the first alcohol concentration in the inner barrel of the washing machine needs to be obtained through the alcohol concentration sensor, and when the first alcohol concentration is larger than or equal to the first alcohol concentration threshold value, the fact that the first alcohol concentration in the inner barrel of the washing machine is high at present and the danger of combustion or explosion exists is shown, so that the fan and the water inlet system are controlled to work to reduce the alcohol concentration in the inner barrel of the washing machine. Until the alcohol concentration collected by the alcohol concentration sensor is lower than the first alcohol concentration threshold, the explosion or combustion danger does not occur, so that the inner barrel is controlled to rotate, alcohol molecules can be attached to clothes, and the purposes of sterilization and disinfection are achieved. Therefore, the clothes are sterilized and disinfected by the alcohol instead of using the corrosive disinfectant, so that the corrosion consumption of the corrosive disinfectant on the internal materials of the washing machine can be avoided, the service life of the washing machine is ensured, and the user experience is improved.

In some embodiments, based on the embodiment shown in fig. 13, as shown in fig. 14, after the washing machine performs steps S101 to S105, the following steps are further performed:

and S106, controlling the inner barrel to stop rotating and controlling the fan and the water inlet system to work after the rotating time of the inner barrel reaches the first time.

Optionally, the first time period may be set before the system leaves the factory, for example: 2 minutes, 3 minutes, etc.

It should be understood that after the rotation time of the inner cylinder reaches the first time, a large amount of alcohol molecules are already attached to the surface of the clothes, and the alcohol molecules have fully completed the disinfection and sterilization effect, so that the fan and the water inlet system are controlled to work, the alcohol molecules after the disinfection and sterilization are discharged out of the inner cylinder of the washing machine, and the alcohol concentration in the inner cylinder of the washing machine is reduced. The specific process of the fan and the water inlet system may be referred to as step S104, and is not described herein again.

S107, after the working time of the fan and the water inlet system reaches a second time, controlling the fan and the water inlet system to stop working, and acquiring a second alcohol concentration in the inner barrel through the alcohol concentration sensor.

The second duration may be set by the system before factory shipment, such as: 2 minutes, 3 minutes, etc.

It will be appreciated that after the blower and water inlet system are deactivated, a substantial amount of alcohol molecules in the washing machine drum have been removed from the washing machine drum with the wash water, at which point the alcohol concentration in the washing machine drum is theoretically low, but to ensure safety, the second alcohol concentration in the drum at this point is again taken by the alcohol concentration sensor.

S108, judging whether the second alcohol concentration is larger than or equal to a second alcohol concentration threshold value or not.

Wherein the second alcohol concentration threshold is smaller than the lower limit of the explosion limit of alcohol in the air, and the second alcohol concentration threshold is smaller than the first alcohol concentration threshold.

Optionally, if the second alcohol concentration is greater than or equal to the second alcohol concentration threshold, it indicates that the alcohol concentration in the inner tub may not be within the safe range due to the alcohol being added again into the inner tub, so step S109 is executed to continue to reduce the alcohol concentration in the inner tub of the washing machine.

If the second alcohol concentration is smaller than the second alcohol concentration threshold, the alcohol concentration in the inner barrel cannot exceed the safe range due to the fact that the alcohol is added into the inner barrel again with high probability, and therefore the washing machine can carry out the next alcohol spraying operation.

And S109, controlling the fan and the water inlet system to work.

The specific process of the fan and the water inlet system may be referred to as step S104, and is not described herein again.

In some embodiments, with continuing reference to fig. 14, the method for controlling a washing machine may further include the following steps in case that the second alcohol concentration is less than the second alcohol concentration threshold:

s110, judging whether the number of times of spraying alcohol by the alcohol spraying device is larger than or equal to the target number of times of spraying.

Optionally, after the washing machine finishes one alcohol spraying operation, if the number of times that the alcohol spraying device sprays alcohol is less than the target number of times, the steps S101-S110 are executed again, and the clothes are continuously sterilized and disinfected. If the number of times of spraying alcohol by the alcohol spraying device is greater than or equal to the target number of times of spraying, it is indicated that the sterilization and disinfection process of the laundry has been completed, and thus step S111 is performed to discharge the residual alcohol in the alcohol storage box.

In some embodiments, after a user issues an instruction to the washing machine to select a sterilization and disinfection program, the washing machine acquires the weight of laundry placed in the drum in response to the instruction, and determines a target number of showers according to the weight of the laundry. Therefore, the proper spraying times can be determined more accurately according to the actual conditions of the clothes in the washing machine.

Alternatively, the weight of the laundry may be calculated by inertia, moment of the laundry and average power of a motor of the washing machine during a start-up phase of the washing machine.

Alternatively, the weight of the laundry may be obtained by a weight sensor. It will be appreciated that weight sensors typically measure the weight of an external load by generating an output voltage as a strain gauge which, when loaded, produces a strain proportional to the load. Therefore, the value obtained by the weight sensor may not be the true weight of the laundry, and a certain conversion is required to obtain the weight of the laundry.

As a possible implementation manner, the washing machine pre-configures a corresponding relationship between the weight of the clothes and the target spraying times; thus, the target spraying times are determined according to the corresponding relation and the weight of the clothes.

For example, the correspondence between the laundry weight and the target number of showers may be referred to as the following table 1.

TABLE 1

Weight of clothes	Number of target showers
		[0,300g)	1 time of
[300g,600g)	2 times (one time)
		[600g,1200g)	3 times of
[1200g,1500g)	4 times (twice)
		……	……

As exemplified in connection with table 1, if the weight of the laundry is 1000g, the target number of showers is determined to be 3 times.

And S111, controlling the first valve and the second valve to be opened.

It should be noted that the first valve is used to control the washing water to enter the alcohol storage case. The second valve is used for controlling the liquid in the alcohol storage box to flow out. The first valve and the second valve are controlled to be opened, so that residual alcohol in the alcohol storage box is discharged.

Steps S106-S111 bring at least the following advantageous effects: after the inner drum of the washing machine is controlled to rotate for a first time, alcohol molecules are fully mixed in the inner drum of the washing machine, and a large number of alcohol molecules can be attached to the surface of clothes to finish the task of sterilization and disinfection. Because of the particularity of alcohol, the operation of the fan and the water inlet system needs to be controlled after the sterilization and disinfection task is completed, so that alcohol molecules are discharged out of the washing machine. At this time, in order to ensure safety, a second alcohol concentration in the inner barrel of the washing machine needs to be obtained through the alcohol concentration sensor, if the second alcohol concentration is greater than or equal to a second alcohol concentration threshold value, the alcohol concentration in the inner barrel of the washing machine is not in a safe range, and therefore the alcohol concentration in the inner barrel of the washing machine is continuously reduced. If the second alcohol concentration is smaller than the second alcohol concentration threshold value, the alcohol concentration in the inner drum of the washing machine is in a safe range, and the first alcohol spraying work is finished. After the first alcohol spraying work is finished, the situation that the sterilization and disinfection are insufficient due to too many clothes may exist, so whether the number of times that the alcohol spraying device sprays alcohol is larger than or equal to the target number of times is judged, and if the number of times that the alcohol spraying device sprays alcohol is smaller than the target number of times, the alcohol spraying work is executed again. And if the number of times of spraying the alcohol by the alcohol spraying device is more than or equal to the target number of times of spraying, discharging the residual alcohol in the alcohol storage box. Therefore, the purpose of fully sterilizing and disinfecting the clothes can be achieved.

In some embodiments, after the user selects the sterilization and disinfection program, in response to the selection operation of the user, the washing machine obtains a third alcohol concentration in the inner drum of the washing machine to detect the residual alcohol content in the inner drum of the washing machine, so as to avoid danger caused by the alcohol concentration in the inner drum of the washing machine exceeding a first alcohol concentration threshold value.

Optionally, if the third alcohol concentration is greater than or equal to the first alcohol concentration threshold, the residual alcohol concentration in the barrel is higher, the risk is higher, and therefore the fan and the water inlet system are controlled to work, and alcohol in the inner barrel is discharged.

Optionally, if the third alcohol concentration is less than the first alcohol concentration threshold, a prompt message is sent, and the prompt message is used for prompting a user to add alcohol into the alcohol spraying device.

As a possible implementation, the prompting message is broadcast in the form of voice. For example: the voice prompt device sends out voice 'please put in alcohol solution'.

As another possible implementation, the prompting message is displayed in text form. For example: the text "please put in alcohol solution" is displayed through the display.

In some embodiments, where the alcohol spraying device is configured with a level sensor, after the user places the alcohol solution into the alcohol storage cartridge, the level sensor obtains the current level of the alcohol solution in the alcohol storage cartridge, which is then sent to the controller. After receiving the current liquid level, the controller sends out a prompt message to prompt a user to put in excessive alcohol solution and take out the excessive alcohol solution if the current liquid level is greater than the alcohol liquid level threshold.

In some embodiments, the correspondence between the preset laundry weight and the target spraying times of the washing machine in table 1 is configured in advance before the washing machine is shipped. Or may be determined according to the operation state of the washing machine. Exemplarily, taking the correspondence between the weight of the laundry and the target number of spraying times as determined according to the operation state of the washing machine, and assuming that the weight of the laundry put into the washing machine is 1000g as an example, the specific configuration process of the correspondence is as follows:

the explosion limit of alcohol is: 3.5 to 18.0 percent (volume fraction), and if the volume fraction is larger than the limit, explosion is caused. To avoid explosion, the alcohol concentration in the cartridge is controlled to be less than 3.5%. The total mass m of alcohol dosed at each time needs to be controlled to be less than or equal to the mass m of 75% alcohol _{75％CH3CH2OH(aq)} 。

Optionally, m _{75％CH3CH2OH(aq)} The calculation of (d) can be obtained by the following formula:

first, V is obtained by the following formula (1) _CH3CH2OH(g) 。

V _CH3CH2OH(g) ＝V _{Volume of cylinder} X (3.5% -C%) formula (1)

Wherein, C% is the third alcohol concentration in the inner cylinder of the washing machine, namely the residual alcohol concentration in the inner cylinder of the washing machine, which is obtained after the user selects the sterilization and disinfection program. V _{Volume of cylinder} Is the volume of the washing machine.

To obtain V _CH3CH2OH(g) Then, substituting into the formula (2) to obtain n _CH3CH2OH(g) 。

V _CH3CH2OH(g) ＝V _m ×n _CH3CH2OH(g) Formula (2)

Wherein, V _m Is the molar volume of gas, and is taken at 23 ℃ and 0.1MPa atmospheric pressure as

22.4L/mol。

To obtain n _CH3CH2OH(g) Then, substituting into the formula (3) to obtain m _CH3CH2OH(l) 。

m _CH3CH2OH(l) ＝M _CH3CH2OH ×n _CH3CH2OH Formula (3)

Wherein M is _CH3CH2OH Is the relative mass of CH3CH2OH and is 46.

To obtain m _CH3CH2OH(l) Then, substituting into the formula (4) to obtain m _{75％CH3CH2OH(aq)} 。

Illustratively, assuming 10g of alcohol is required for every 1000g of laundry, the initial concentration C% of alcohol in the drum is 1%, and m is calculated from the above steps _{75％CH3CH2OH(aq)} It is 4.5g, i.e. the maximum amount of alcohol is 4.5g per dose. Then, the washing machine needs to be thrown 3 times at a minimum to make the total alcohol throw amount 10 g. That is, when the weight of the laundry is 1000g, the corresponding target spraying times is 3 times.

The whole operation of the washing machine to perform the sterilization and disinfection process will be described with reference to the logic flow chart shown in fig. 15.

After the user starts the sterilization and disinfection program, the washing machine acquires a third alcohol concentration in the inner barrel through the alcohol concentration sensor. And if the third alcohol concentration is less than the first alcohol concentration threshold value, controlling the fan and the water inlet system to work. And if the third alcohol concentration is greater than or equal to the first alcohol concentration threshold value, sending out a voice or text prompt to prompt the user to put in the alcohol solution.

After the user puts in the alcohol solution, the user clicks on start and the program starts running.

After the program starts to run, the washing machine acquires the weight of the clothes, and determines the target spraying times according to the weight of the clothes.

After the target spraying times are determined, the inner barrel of the washing machine rotates, and the alcohol spraying device is controlled to spray alcohol into the inner barrel.

The washing machine obtains a first alcohol concentration in the inner barrel through the alcohol concentration sensor. And if the first alcohol concentration is less than the first alcohol concentration threshold value, controlling the fan and the water inlet system to work. And if the first alcohol concentration is greater than or equal to the first alcohol concentration threshold value, controlling the inner barrel to rotate for a first time length.

And after the rotation time of the inner barrel reaches the first time, controlling the inner barrel to stop rotating and controlling the fan and the water inlet system to work.

And after the working time of the fan and the water inlet system reaches the second time, controlling the fan and the water inlet system to stop working, and acquiring the second alcohol concentration in the inner barrel through the alcohol concentration sensor. And if the second alcohol concentration is greater than the second alcohol concentration threshold value, controlling the fan and the water inlet system to work.

And if the second alcohol concentration is greater than or equal to the second alcohol concentration threshold value, judging whether the number of times of spraying alcohol by the alcohol spraying device is greater than or equal to the target spraying number. If the number of times of spraying the alcohol by the alcohol spraying device is less than the target number of times of spraying, the inner cylinder is repeatedly rotated, and the process after the alcohol spraying device sprays the alcohol into the inner cylinder is controlled. And if the number of times of spraying the alcohol by the alcohol spraying device is more than or equal to the target number of times of spraying, controlling the first valve and the second valve to be opened so as to discharge the residual alcohol in the alcohol storage box.

And after the residual alcohol in the alcohol storage box is discharged, the sterilization and disinfection program is finished.

It can be seen that the foregoing describes the solution provided by the embodiments of the present application primarily from a methodological perspective. In order to implement the functions, the embodiments of the present application provide corresponding hardware structures and/or software modules for performing the respective functions. Those of skill in the art will readily appreciate that the various illustrative modules and algorithm steps described in connection with the embodiments disclosed herein may be implemented as hardware or combinations of hardware and computer software. Whether a function is performed as hardware or computer software drives hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.

Embodiments of the present invention also provide a computer-readable storage medium, where the computer-readable storage medium includes computer-executable instructions, and when the computer-executable instructions are executed on a computer, the computer is caused to execute the method provided in the foregoing embodiments.

The embodiment of the present invention further provides a computer program product, which can be directly loaded into the memory and contains software codes, and after being loaded and executed by the computer, the computer program product can implement the method provided by the above embodiment.

Those skilled in the art will recognize that, in one or more of the examples described above, the functions described in this invention may be implemented in hardware, software, firmware, or any combination thereof. When implemented in software, the functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A storage media may be any available media that can be accessed by a general purpose or special purpose computer.

Through the above description of the embodiments, it is clear to those skilled in the art that, for convenience and simplicity of description, the foregoing division of the functional modules is merely used as an example, and in practical applications, the above function distribution may be completed by different functional modules according to needs, that is, the internal structure of the device may be divided into different functional modules to complete all or part of the above described functions.

In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the modules or units is only one logical function division, and there may be other division ways in actual implementation. For example, various elements or components may be combined or may be integrated into another device, or some features may be omitted, or not implemented. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form. Units described as separate parts may or may not be physically separate, and parts displayed as units may be one physical unit or a plurality of physical units, may be located in one place, or may be distributed to a plurality of different places. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit. The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a readable storage medium. Based on such understanding, the technical solutions of the embodiments of the present application may be essentially or partially contributed to by the prior art, or all or part of the technical solutions may be embodied in the form of a software product, where the software product is stored in a storage medium and includes several instructions to enable a device (which may be a single chip, a chip, or the like) or a processor (processor) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a U disk, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk.

The above description is only an embodiment of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions within the technical scope of the present disclosure should be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (10)

1. The utility model provides a washing machine, includes casing, urceolus and inner tube, the urceolus sets up in the casing, the inner tube is located in the urceolus, and with the urceolus rotates to be connected, its characterized in that, washing machine still includes:

the fan is arranged in the shell and provided with an air outlet, and the air outlet faces the inner barrel and is used for blowing air into the inner barrel;

a water inlet system for introducing washing water into the outer tub;

the alcohol spraying device is used for spraying alcohol into the inner barrel;

the alcohol concentration sensor is used for detecting the alcohol concentration in the inner barrel;

a controller configured to:

in the process of executing a sterilization and disinfection program, controlling the alcohol spraying device to spray alcohol into the inner barrel;

acquiring a first alcohol concentration in the inner barrel through the alcohol concentration sensor;

if the first alcohol concentration is greater than or equal to a first alcohol concentration threshold value, controlling the fan and the water inlet system to work;

and if the first alcohol concentration is smaller than the first alcohol concentration threshold value, controlling the inner barrel to rotate.

2. The washing machine as claimed in claim 1,

the controller further configured to:

after the rotation time of the inner cylinder reaches a first time, controlling the inner cylinder to stop rotating, and controlling the fan and the water inlet system to work;

after the working time of the water inlet system reaches a second time, controlling the fan and the water inlet system to stop working, and acquiring a second alcohol concentration in the inner barrel through the alcohol concentration sensor;

if the second alcohol concentration is greater than or equal to a second alcohol concentration threshold value, controlling the fan and the water inlet system to work;

if the second alcohol concentration is less than the second alcohol concentration threshold, judging whether the number of times of spraying alcohol by the alcohol spraying device is greater than or equal to a target spraying number of times;

and if the number of times of spraying the alcohol by the alcohol spraying device is less than the target number of times of spraying, controlling the alcohol spraying device to spray the alcohol into the inner barrel again.

3. A washing machine according to claim 2,

the controller further configured to:

acquiring the weight of the laundry placed in the drum in response to a user's confirmation of an instruction to perform a sterilization and disinfection program;

and determining the target spraying times according to the weight of the clothes.

4. A washing machine according to claim 3, wherein the alcohol spray device comprises:

the alcohol storage box is fixedly connected with the shell;

a first connecting line;

a first spraying device;

one end of the first connecting pipeline is communicated with the alcohol storage box, and the other end of the first connecting pipeline is communicated with the first spraying device;

the first spraying device is provided with a first spraying opening, and the first spraying opening faces the inside of the inner barrel and is used for spraying alcohol into the inner barrel.

5. The washing machine as claimed in claim 4, wherein the alcohol spray device further comprises:

and the liquid level sensor is arranged in the alcohol storage box and used for detecting the alcohol liquid level in the alcohol storage box.

6. The washing machine as claimed in claim 4, wherein the water inlet system comprises:

a water inlet pipe for introducing washing water into the outer tub;

a second connecting line;

a second spraying device;

one end of the second connecting pipeline is communicated with the alcohol storage box, and the other end of the second connecting pipeline is communicated with the second spraying device;

the second spraying device is provided with a second spraying port, and the second spraying port faces the outer barrel and is used for spraying the washing water into the outer barrel.

7. The washing machine as claimed in claim 6, further comprising:

one end of the third connecting pipeline is communicated with the water inlet pipe, and the other end of the third connecting pipeline is communicated with the alcohol storage box;

a drain pipe in communication with the alcohol storage bin;

a first valve provided on the third connection pipe for controlling the washing water to enter the alcohol storage box;

and the second valve is arranged on the drain pipe and is used for controlling the liquid in the alcohol storage box to flow out.

8. The washing machine as claimed in claim 7, wherein the controller is further configured to:

acquiring the number of times of spraying alcohol by the alcohol spraying device;

and after the number of times of spraying alcohol by the alcohol spraying device reaches the target number of times of spraying, controlling the first valve and the second valve to be opened.

9. A washing machine according to any one of claims 1 to 8,

the controller further configured to:

receiving a selection instruction of a user for a sterilization and disinfection program;

responding to a selection instruction of the user for a sterilization and disinfection program, and acquiring a third alcohol concentration in the inner barrel through the alcohol concentration sensor;

if the third alcohol concentration is greater than or equal to the first alcohol concentration threshold value, controlling the fan and the water inlet system to work;

if the third alcohol concentration is smaller than the first alcohol concentration threshold value, sending a prompt message, wherein the prompt message is used for prompting the user to add alcohol into the alcohol spraying device.

10. A control method applied to a washing machine according to any one of claims 1 to 9, characterized in that the method comprises:

in the process of executing a sterilization and disinfection program, acquiring a first alcohol concentration in the inner barrel through an alcohol concentration sensor;

if the first alcohol concentration is greater than or equal to a first alcohol concentration threshold value, controlling the fan and the water inlet system to work;

and if the first alcohol concentration is less than the first alcohol concentration threshold value, controlling the alcohol spraying device to spray alcohol into the inner barrel.

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