CN118147863A - Washing machine and control method - Google Patents

Abstract

The invention relates to a washing machine and a control method, wherein the washing machine comprises an outer cylinder and an inner cylinder rotatably arranged in the outer cylinder; the water storage device is arranged at the bottom of the outer cylinder and comprises a water storage cavity, and a passage capable of being opened and closed is arranged between the water storage cavity and the outer cylinder; and a control device configured to control the plurality of drum cleaning processes to be performed before, after and/or during different washing phases of the washing program, respectively, to select different drum cleaning strategies to clean different areas of the washing machine during the plurality of drum cleaning processes, and to control the spray device to spray clean the inner drum rear wall during at least one of the plurality of drum cleaning processes. According to the invention, a plurality of cylinder cleaning processes are embedded before, after and/or during different washing stages of a washing program, so that different areas of the inner cylinder and the outer cylinder, where dirt is easy to be stored, are cleaned in different ways, dirt residues are avoided, and the effect of cleaning the whole cylinder is achieved.

Description

Washing machine and control method

Technical Field

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

Background

In the related art, a manner of cleaning a drum of a washing machine generally drives water flow through mechanical movement or cleans an outer wall of an inner drum and an inner wall of an outer drum through a manner of heating water. However, the current drum cleaning mode cannot perform omnibearing effective cleaning on different areas of the washing machine.

Disclosure of Invention

In order to overcome the problem that the drum cleaning method in the related art cannot effectively clean the drum, the first aspect of the present invention provides a washing machine, which includes:

the outer cylinder comprises an outer cylinder rear wall, and the inner cylinder comprises an inner cylinder rear wall which is opposite to the inner cylinder rear wall;

The water storage device is arranged at the bottom of the outer cylinder and comprises a water storage cavity, and a passage capable of being opened and closed is arranged between the water storage cavity and the outer cylinder;

The spray device comprises a spray header and a spray pipe, the spray header is arranged on the rear wall of the outer cylinder, and the spray pipe is used for communicating the spray header with the water storage cavity;

A control device configured to control a plurality of drum cleaning processes, respectively performed before, after and/or while different washing phases of a washing program, in which different drum cleaning strategies are selected to clean different areas of a washing machine, and to control the spray device to spray clean the inner drum rear wall during at least one of the drum cleaning processes;

Wherein: the washing program comprises a main washing stage, a main eluting water stage, a rinsing washing stage and a final dewatering stage which are sequentially executed, the barrel cleaning strategy comprises barrel cleaning parameters, and the barrel cleaning parameters comprise one or more of spray cleaning time, barrel rotating speed, barrel water inlet level and water inlet level of the water storage cavity.

In some embodiments, the spray header is disposed along a radial direction of the outer barrel rear wall, the spray header including a plurality of spray holes, the spray direction of the plurality of spray holes being toward the inner barrel rear wall.

A second aspect of the present invention provides a control method for controlling any one of the washing machines set forth in the first aspect of the present invention, the control method including:

performing a plurality of drum cleaning processes during a washing course of the washing machine, the plurality of drum cleaning processes being performed before, after and/or at different washing stages of the washing course, respectively;

In the cleaning process of the multiple drums, different drum cleaning strategies are selected to clean different areas of the washing machine;

The washing program comprises a main washing stage, a main eluting water stage, a rinsing washing stage and a final dewatering stage which are sequentially executed, the barrel cleaning strategy comprises barrel cleaning parameters, and the barrel cleaning parameters comprise one or more of spraying cleaning time, inner barrel rotating speed, inner barrel water inlet level and water inlet level of the water storage cavity.

In some embodiments, the plurality of cartridge cleaning processes are controlled to be sequentially performed in a preset order in response to a cartridge cleaning control instruction, or a part of the plurality of cartridge cleaning processes may be selected to be performed in a corresponding execution timing.

In some embodiments, the plurality of cartridge cleaning processes includes a first cartridge cleaning process for cleaning an outer sidewall of the inner cartridge;

In the cleaning process of the first cylinder, under the condition that a passage between the outer cylinder and the water storage cavity is kept to be disconnected, after the inner cylinder is filled with water to a first water level, the inner cylinder is controlled to rotate for a first duration at a first rotation speed.

In some embodiments, the first cartridge cleaning process is performed after the main wash stage and before the main wash stage;

And/or, the first drum cleaning process is performed after the rinse wash stage and before the final spin stage.

In some embodiments, the plurality of cartridge cleaning processes includes a second cartridge cleaning process for cleaning an inner wall of the outer cartridge;

in the second cylinder cleaning process, under the condition that a passage between the outer cylinder and the water storage cavity is kept to be disconnected, after the inner cylinder is filled with water to a second water level, the inner cylinder is controlled to rotate for a second duration at a second rotating speed;

The second water level is greater than the first water level.

In some embodiments, the second cartridge cleaning process is performed after the main wash stage and before the main wash stage;

And/or, the second drum cleaning process is performed after the rinse wash stage and before the final spin stage.

In some embodiments, the plurality of cartridge cleaning processes includes a third cartridge cleaning process for cleaning the inner cartridge rear wall;

In the cleaning process of the third cylinder, under the condition that the communication of the passage between the outer cylinder and the water storage cavity is kept, after the water level in the water storage cavity reaches a third water level, the inner cylinder is controlled to rotate at a third rotating speed, water in the water storage cavity is controlled to enter the spraying device, and the spraying device is controlled to spray and clean the rear wall of the inner cylinder for a third period of time.

In some embodiments, the third cartridge cleaning process is performed in the main wash water stage;

and/or, the third drum cleaning process is performed in the final dewatering stage.

In some embodiments, the main wash water stage and the final dewatering stage each include a first dewatering period, a second dewatering period, and a third dewatering period that are sequentially performed, the rotational speed of the first dewatering period being less than or equal to the rotational speed of the second dewatering period, the rotational speed of the second dewatering period being less than the rotational speed of the third dewatering period;

the third cartridge cleaning process is in the second dewatering period of the main wash water stage and/or the final dewatering stage.

In some embodiments, the first cartridge cleaning process is performed after the main wash stage and before the main wash stage;

The second bowl cleaning process is performed after the rinse wash stage and before the final spin stage;

the third cartridge cleaning process is performed in the main wash water stage and in the final dewatering stage.

The technical scheme of the invention can have the following beneficial effects: according to the invention, a plurality of cylinder cleaning processes are embedded before, after and/or during different washing stages of a washing program, so that different areas of the inner cylinder and the outer cylinder, where dirt is easy to be stored, are cleaned in different ways, dirt residues are avoided, and the effect of cleaning the whole cylinder is achieved.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.

Fig. 1 is a structural view of a washing machine, which is shown according to an exemplary embodiment.

Fig. 2 is a diagram illustrating a positional relationship of a showerhead and an outer tub according to an exemplary embodiment.

FIG. 3 is a schematic view of an inner barrel rear wall shown according to an exemplary embodiment.

FIG. 4 is a schematic view of an outer sidewall of an inner barrel, according to an example embodiment.

FIG. 5 is a schematic diagram showing a comparison of the water levels of the inner cartridge required for the first cartridge cleaning process and the second cartridge cleaning process, according to an example embodiment.

FIG. 6 is a schematic diagram illustrating a dewatering period during which a third drum cleaning process is performed, according to an exemplary embodiment.

Fig. 7 is a control flow diagram of a washing machine, according to an exemplary embodiment.

The reference numerals are as follows:

1. an outer cylinder; 11. a rear wall of the outer cylinder; 12. an inner wall of the outer cylinder; 2. an inner cylinder; 21. an inner barrel rear wall; 22. the outer side wall of the inner cylinder; 3. a water storage device; 31. a water storage chamber; 4. a spraying device; 41. a spray header; 42. a shower pipe; 5. a tripod; H. a second water level; l, the first water level.

Detailed Description

Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the invention. Rather, they are merely examples of apparatus and methods consistent with aspects of the invention as detailed in the accompanying claims.

A traditional washing machine barrel cleaning mode is used for sterilizing and disinfecting the barrel and softening stubborn stains by heating the water temperature to 90 ℃, and cleaning the outer surface of the inner barrel and the inner surface of the outer barrel by striking water surface splashing water flow through the inner barrel. The cylinder cleaning mode can only clean partial areas, and can not clean stubborn stains accumulated for a long time at places with smaller gaps and easy dirt collection.

In order to solve the above technical problems, the present embodiment provides a washing machine and a control method, which can perform a targeted cleaning process on different areas of the washing machine in a daily washing process, avoid long-term accumulation of stains to form stubborn stains, and realize more effective cylinder cleaning.

The technical solutions of the present embodiment are described in detail below with reference to the accompanying drawings, and the following embodiments and examples may be combined with each other without conflict.

According to an exemplary embodiment, as shown in fig. 1 to 4, the present embodiment proposes a washing machine, which may have only a laundry washing function, but may also have a drying function or other laundry care function at the same time. The washing machine of the embodiment can be a conventional washing machine placed on the ground or a wall-mounted washing machine. The washing machine comprises an outer cylinder 1 and an inner cylinder 2 rotatably arranged in the outer cylinder 1, wherein the outer cylinder 1 comprises an outer cylinder rear wall 11, the inner cylinder 2 comprises an inner cylinder rear wall 21, and the outer cylinder rear wall 11 is arranged opposite to the inner cylinder rear wall 21. The inner cylinder rear wall 21 is fixed with a tripod 5, the inner cylinder 2 is fixedly connected with a driving shaft through the tripod 5, and the driving shaft drives the inner cylinder 2 to rotate through driving the tripod 5 to rotate. The washing machine further comprises a water storage device 3 and a spraying device 4, wherein the water storage device 3 is arranged at the bottom of the outer barrel 1, the water storage device 3 comprises a water storage cavity 31, and a passage capable of being opened and closed is arranged between the water storage cavity 31 and the outer barrel 1. The shower device 4 includes a shower head 41 and a shower pipe 42, the shower head 41 is provided on the rear wall 11 of the outer tub, the shower pipe 42 communicates the shower head 41 with the water storage chamber 31, and when the washing process is performed by the washing machine, water in the water storage chamber 31 can be controlled to flow into the shower head 41, for example, a booster pump is provided on the shower pipe 42, and water in the water storage chamber 31 is sent to the shower head 41 through the booster pump.

The shower head 41 is provided with a plurality of shower holes through which water from the water storage chamber 31 is sprayed. According to the structure of the spray header 41 and the spray directions of the spray holes, the water sprayed from the spray holes sprays and cleans the inner cylinder back wall 21, or the water sprayed from the spray holes sprays and cleans the inner cylinder back wall 21 and the outer cylinder back wall 11 simultaneously, so that the inner cylinder back wall 21 which is not easy to clean and the tripod 5 area positioned on the inner cylinder back wall 21 are effectively cleaned, and the cleaning effect of the cylinder is improved. In addition, when the washing machine of the embodiment is used for implementing spray cleaning, water in the water storage cavity 31 is sprayed out from the spray header 41 through the spray pipe 42 under the action of the booster pump, after the water sprayed out from the spray header 41 enters the outer cylinder 1, under the condition that the outer cylinder 1 is communicated with the water storage cavity 31, the water in the outer cylinder 1 returns to the water storage cavity 31, so that the water recycling is realized, and the water consumption in the cylinder cleaning process is reduced.

In an example, as shown in fig. 2, the shower head 41 is disposed along the radial direction of the rear wall 11 of the outer cylinder, the shower head 41 includes a plurality of shower holes, the shower directions of the plurality of shower holes face the rear wall 21 of the inner cylinder, and the water flow sprayed from the plurality of shower holes can realize the complete cleaning of the rear wall 21 of the inner cylinder and the tripod 5 positioned at the rear wall 21 of the inner cylinder when the inner cylinder 2 rotates.

In other embodiments, the showerhead 41 is disposed on the outer tub back wall 11, the showerhead 41 comprising a plurality of spray holes having a plurality of spray directions, e.g., the plurality of spray holes forming a plurality of spray angles with respect to the inner tub 2 axis, to clean different areas of the inner tub back wall 21 and the outer tub back wall 11. The shower head 41 can also be configured to move in the circumferential and/or radial direction of the inner barrel 2 during a shower cleaning process to achieve a better cleaning effect in a rotational fit with the inner barrel 2.

The washing machine of the present embodiment further comprises a control device (not shown in the drawings) configured to control the plurality of tub cleaning processes, respectively performed before, after and/or during different washing phases of the washing program, to select different tub cleaning strategies for cleaning different areas of the washing machine during the plurality of tub cleaning processes, and to control the spray device 4 to spray clean the tub rear wall 21 during at least one of the plurality of tub cleaning processes. Wherein: the washing program includes a main washing stage, a main eluting water stage, a rinsing washing stage, and a final dehydrating stage, which are sequentially performed, the cartridge cleaning strategy includes cartridge cleaning parameters including one or more of a spray cleaning period, a rotational speed of the cartridge 2, a water inlet level of the cartridge 2, and a water inlet level of the water storage chamber 31. For example, in the cleaning process of multiple drums, the rotation speed of the inner drum 2 and the water level of the inner drum 2 are regulated and controlled to clean the outer side wall 22 of the inner drum or the inner wall 12 of the outer drum, or the spraying cleaning time of the spraying device 4, the water inlet level of the water storage cavity 31 and the rotation speed of the inner drum 2 are regulated and controlled to clean the rear wall 21 of the inner drum, the cleaning process of multiple drums is realized to clean different areas where dirt is easy to be stored in the washing machine in different manners, dirt residue is avoided, the phenomenon that intractable dirt is formed due to long-term residue is avoided, and the cleaning effect of the whole drum is achieved. And the embodiment can realize timely cleaning of dirt at different positions in the washing machine by embedding a plurality of cylinder cleaning processes before, after and/or during different washing stages of a washing program, thereby ensuring the washing effect of clothes and ensuring the health of users.

Further, the plurality of cartridge cleaning processes includes a first cartridge cleaning process for cleaning the inner cartridge outer sidewall 22, a second cartridge cleaning process for cleaning the outer cartridge inner wall 12, and a third cartridge cleaning process for cleaning the inner cartridge rear wall 21. During the first cartridge cleaning process, the control means is configured to control the inner cartridge 2 to rotate at the first rotational speed for a first period of time after the inner cartridge 2 is fed to the first water level while maintaining the passage between the outer cartridge 1 and the water storage chamber 31 open. During the second drum cleaning process, the control means is configured to control the inner drum 2 to rotate at the second rotational speed for a second period of time after the inner drum 2 is fed with water to the second water level while maintaining the passage between the outer drum 1 and the water storage chamber 31 open. In the third cylinder cleaning process, the control device is configured to control the inner cylinder 2 to rotate at a third rotation speed after the water level in the water storage cavity 31 reaches the third water level under the condition that the passage communication between the outer cylinder 1 and the water storage cavity 31 is maintained, and control the water in the water storage cavity 31 to enter the spraying device 4, and control the spraying device 4 to spray and clean the rear wall of the inner cylinder 2 for a third period of time. Wherein the second water level is greater than the first water level and the third water level is less than or equal to the depth of the water storage chamber 31. In a preferred embodiment, the control means is configured to control the first cartridge cleaning process to be performed after the main wash phase before the main wash phase, to control the second cartridge cleaning process to be performed after the rinse wash phase before the final spin phase, and to control the third cartridge cleaning process to be performed in the main wash phase and in the final spin phase.

The washing machine of this embodiment has various drainage modes, and can drain through the drain opening provided in the outer tub 1, and also drain through the drain opening provided in the water storage chamber 31.

In an example, the bottom of the outer cylinder 1 is provided with a first water outlet and a second water outlet, the first water outlet is connected with a drain pipe, the water inlet of the water storage cavity 31 is communicated with the second water outlet, the first water outlet is provided with a first drain valve, and the second water outlet is provided with a second drain valve. When the first drain valve opens the first drain port, water in the outer tube 1 is drained through the first drain port; when the second drain valve opens the second drain port, water in the outer tube 1 enters the water storage chamber 31 from the second drain port, and the first drain port and the second drain port are controlled to be opened separately. In the spray cleaning process, the first water outlet is closed, and the second water outlet is opened, so that spray water flows into the outer barrel 1 and then enters the water storage cavity 31 for recycling. When the spray cleaning is about to be finished, the first water outlet is opened, the second water outlet is closed, so that spray water flows into the outer cylinder 1 and is discharged through the first water outlet until the water in the water storage cavity 31 is discharged completely, and water accumulation in the water storage cavity 31 is prevented from breeding bacteria.

In another example, the bottom of the outer cylinder 1 is provided with a first water outlet, the water inlet of the water storage cavity 31 is communicated with the first water outlet, the bottom of the water storage cavity 31 is provided with a second water outlet, and the second water outlet is connected with a water drain pipe. The first water outlet is provided with a first water drain valve, the second water outlet is provided with a second water drain valve, and the first water outlet and the second water outlet can be opened simultaneously or independently. When the first drain valve and the second drain valve are simultaneously opened, water in the outer tub 1 is discharged through the first drain port, the water storage chamber 31, and the second drain port. Wherein, when a water outlet is opened independently, water in the outer cylinder 1 enters the water storage cavity 31 to realize the recycling of water during spray cleaning, and after the spray cleaning is finished, the water in the water storage cavity 31 is discharged by opening the second water outlet.

According to an exemplary embodiment, the present embodiment provides a control method of a washing machine, where the control method is used to control the washing machine of any one of the foregoing embodiments, and the control method includes:

The method includes performing a plurality of tub cleaning processes during a washing course of the washing machine, the plurality of tub cleaning processes being performed before, after and/or during different washing phases of the washing course, and selecting different tub cleaning strategies to clean different areas of the washing machine among the plurality of tub cleaning processes. Wherein: the washing program includes a main washing stage, a main eluting water stage, a rinsing washing stage, and a final dehydrating stage, which are sequentially performed, the cartridge cleaning strategy includes cartridge cleaning parameters including one or more of a spray cleaning period, a rotational speed of the cartridge 2, a water inlet level of the cartridge 2, and a water inlet level of the water storage chamber 31. According to the embodiment, a plurality of cylinder cleaning processes are embedded before, after and/or during different washing stages of a washing program, different areas where dirt is easy to be stored in the inner cylinder 2 and the outer cylinder 1 can be cleaned in different manners in the process of executing the washing program, so that dirt residues are avoided, the phenomenon that the dirt cannot be cleaned due to the fact that stubborn dirt is formed by long-term residues is avoided, and the effect of cleaning the whole cylinder is achieved.

The plurality of cartridge cleaning processes of the present embodiment may be automatically performed by default in performing the washing process, or may be performed according to a control instruction of a user. For example, when a user starts a washing program of the washing machine, a display panel of the washing machine or a mobile terminal of the user prompts whether to perform the drum cleaning simultaneously, if the user selects yes, a plurality of drum cleaning processes are automatically performed during the execution of the washing program, and if the user selects no, a plurality of drum cleaning processes are not performed during the execution of the washing program of the washing machine. In other realizable modes, after each washing program with set times is preset in advance, a plurality of cylinder cleaning processes are synchronously executed when the next washing program with set times is executed, so that the waste of water resources caused by frequently executing the plurality of cylinder cleaning processes is avoided while the cylinder cleaning effect is ensured, meanwhile, the long-term accumulation of dirt caused by long-time non-execution of the cylinder cleaning processes is avoided, the cylinder cleaning difficulty is increased, and the set times are 5-10 times, for example.

In some embodiments, the control method further comprises: in response to the drum cleaning control instruction, the drum cleaning processes are controlled to be sequentially executed according to a preset sequence, or part of the drum cleaning processes in the drum cleaning processes can be selected to be executed in corresponding execution time, one or more of the drum cleaning processes can be selected to be executed according to the requirement by a user, so that the drum cleaning requirement of the user in various types is met, and the use of the user is improved.

In some embodiments, the plurality of cartridge cleaning processes includes a first cartridge cleaning process for cleaning the inner cartridge outer sidewall 22. In the first cylinder cleaning process, under the condition that the passage between the outer cylinder 1 and the water storage cavity 31 is kept disconnected, water is controlled to enter the inner cylinder 2, and at the moment, water flowing into the outer cylinder 1 from the inner cylinder 2 cannot enter the water storage cavity 31. When the inner cylinder 2 is filled with water to the first water level, the inner cylinder 2 is controlled to rotate at the first rotation speed for a first period of time. After the first cartridge cleaning process is completed, the water in the outer cartridge 1 is drained. Wherein the first time period is, for example, 1min to 10min. Illustratively, the first rotational speed is greater than or equal to 100 revolutions per minute, and preferably, the first rotational speed is greater than or equal to 100 revolutions per minute and less than or equal to 400 revolutions per minute. The first water level reaches, for example, the position of the lifting rib at the lowest position in the stationary state of the inner drum 2. The first water level is illustratively 1/15 to 1/10 of the diameter of the inner cylinder 2, for example, and is referred to as the water level L shown in FIG. 5. According to the embodiment, the inner cylinder outer side wall 22 and the water surface achieve the effect of rapid flushing through high-speed rotation, so that the surface of the inner cylinder outer side wall 22 is cleaned, and scale residues are reduced.

The washing machine of the present embodiment may perform only one first tub cleaning process or may perform a plurality of first tub cleaning processes in the washing course. In an example, the first tub cleaning process is performed once in the washing program, and the first tub cleaning process may be performed before the main wash washing stage, or before the main wash water stage after the main wash washing stage, or before the rinse washing stage after the main wash water stage, or before the final dehydration stage after the rinse washing stage. In another example, the two first cartridge cleaning processes are performed in a wash program, and the two first cartridge cleaning processes may be performed nested in any two of before the main wash stage, before the main wash stage after the main wash stage, before the rinse wash stage after the main wash stage, and before the final spin-drying stage after the rinse wash stage. In a preferred embodiment, the first cartridge cleaning process is performed after the main wash stage and before the main wash stage; and/or the first bowl cleaning process is performed after the rinse wash stage and before the final spin stage. The main wash water stage or the final dehydration stage is performed immediately after the first drum cleaning process is performed to remove the soil generated in the first drum cleaning process from the laundry.

In some embodiments, the plurality of cartridge cleaning processes includes a second cartridge cleaning process for cleaning the outer cartridge inner wall 12. In the second cylinder cleaning process, under the condition that the passage between the outer cylinder 1 and the water storage cavity 31 is kept disconnected, water is controlled to enter the inner cylinder 2, and at the moment, water flowing into the outer cylinder 1 from the inner cylinder 2 cannot enter the water storage cavity 31. When the inner cylinder 2 is filled with water to the second water level, the inner cylinder 2 is controlled to rotate for a second time period at the second rotating speed, and after the second cylinder cleaning process is finished, the water in the outer cylinder 1 is drained. Wherein: the second period of time is, for example, 1min to 10min. The second water level is greater than the first water level, and illustratively, the second rotational speed is greater than or equal to 100 revolutions per minute, and preferably, the second rotational speed is greater than or equal to 100 revolutions per minute and less than or equal to 400 revolutions per minute. The second water level is greater than or equal to the rinsing water level, and illustratively, the second water level height is, for example, 1/5 to 1/2 of the diameter of the inner tub 2, and the first water level is referred to as the water level H shown in fig. 5. Because the clearance between the outer cylinder 1 and the inner cylinder 2 is smaller, the scouring water flow generated in the high-speed rotation process of the inner cylinder 2 at a lower water level cannot scour the inner cylinder wall 12, so that the higher water level is matched with the high-speed rotation of the inner cylinder 2, and the water surface is beaten under the action of lifting ribs of the outer cylinder 1 and the inner cylinder 2, so that the water flow is agitated, and the inner cylinder wall 12 is cleaned in a targeted manner.

The washing machine of the present embodiment may perform only one second drum cleaning process in the washing course, or may perform a plurality of second drum cleaning processes. In one example, the second drum cleaning process is performed once in the wash program, and the second drum cleaning process may be performed before the main wash stage, or before the main wash stage after the main wash stage, or before the rinse wash stage after the main wash stage, or before the final spin stage after the rinse wash stage. In another example, the two second drum cleaning processes are performed in a wash program, and the two second drum cleaning processes may be performed nested in any two of before the main wash stage, before the main wash stage after the main wash stage, before the rinse wash stage after the main wash stage, and before the final spin-drying stage after the rinse wash stage. In a preferred embodiment, the second cartridge cleaning process is performed after the main wash stage and before the main wash stage; and/or the second bowl cleaning process is performed after the rinse wash stage and before the final spin stage. The main wash water stage or the final dehydration stage is performed immediately after the second drum cleaning process is performed to remove the soil generated in the second drum cleaning process from the laundry.

In some embodiments, the plurality of cartridge cleaning processes includes a third cartridge cleaning process for cleaning the inner cartridge rear wall 21. In the third cylinder cleaning process, under the condition that the passage communication between the outer cylinder 1 and the water storage cavity 31 is kept, the water inlet of the inner cylinder 2 is controlled, the water entering the inner cylinder 2 flows into the outer cylinder 1 and then enters the water storage cavity 31, when the water level in the water storage cavity 31 reaches a third water level, the third water level is for example, greater than 1/2 of the depth of the water storage cavity 31 and smaller than or equal to the depth of the water storage cavity 31, then the inner cylinder 2 is controlled to rotate at a third rotating speed, the water in the water storage cavity 31 is controlled to enter the spraying device 4, the spraying device 4 is controlled to spray and clean the inner cylinder rear wall 21 for a third period of time, and the water sprayed out by the spraying head 41 of the spraying device 4 enters the outer cylinder 1 and flows back into the water storage device 3 through the outer cylinder 1, so that the water recycling is realized, and the water loss in the third cylinder cleaning process is reduced. After the third cartridge cleaning process is completed, the water in the water storage chamber 31 and the outer cartridge 1 is controlled to be discharged. Wherein: the third period of time is, for example, 1min to 10min. Illustratively, the third rotational speed is greater than or equal to 100 revolutions per minute, and preferably, the third rotational speed is greater than or equal to 100 revolutions per minute and less than or equal to 400 revolutions per minute.

The washing machine of the present embodiment may perform the third tub cleaning process only once in the washing course, or may perform the third tub cleaning process a plurality of times. In an example, the third drum cleaning process is performed once in the washing program, and the third drum cleaning process may be performed in the main wash water stage, or in the rinsing-dehydration stage between two adjacent rinsing processes, or in the final-dehydration stage. In another example, the second drum cleaning process is performed twice in the washing program, and the second drum cleaning process may be nested in any two of the main wash water stage, the rinse-spin-dry stage between two adjacent rinse processes, and the final spin-dry stage. In a preferred embodiment, the cleaning process is performed in the main wash water stage and/or in the final dewatering stage in the third cartridge. Since the spray cleaning is mainly performed on the inner cylinder rear wall 21 and the tripod 5, and the spray water directly flows into the water storage chamber 31 and is not accumulated in the outer cylinder 1, the condition of contaminating the laundry does not occur, and therefore, the third cylinder cleaning process can be directly embedded into the main water-eluting stage and/or the final dewatering stage, and the laundry is dewatered simultaneously while the inner cylinder rear wall 21 and the tripod 5 are cleaned, thereby reducing the time consumed in the cylinder cleaning process.

In some embodiments, the main wash water stage and the final dehydration stage each include a first dehydration period T1, a second dehydration period T2, and a third dehydration period T3 sequentially performed, the rotation speed of the first dehydration period T1 is less than or equal to the rotation speed of the second dehydration period T2, the rotation speed of the second dehydration period T2 is less than the rotation speed of the third dehydration period T3, and the third drum cleaning process is in the main wash water stage and/or the second dehydration period T2 of the final dehydration stage. Referring to the schematic diagram of the dehydration period in which the third drum cleaning process is performed as shown in fig. 6, the first dehydration period T1 pre-dehydrates the laundry to remove most of the moisture in the laundry, and simultaneously, the laundry in the inner drum 2 is attached to reduce eccentricity so that the rotation speed of the inner drum 2 can be increased to the rotation speeds of the second and third dehydration periods T2 and T3. The third dehydrating period T3 dehydrates at a higher rotational speed to remove residual moisture from the laundry. Because the clothes in the first dehydration period T1 have more water, the motor power is higher in the high-speed rotation process of the inner cylinder 2, and if the third cylinder cleaning process is executed in the first dehydration period T1, the motor load is increased, and the dehydration effect and the clothes adherence effect in the first dehydration period are affected. If the rotation speed of the third dehydration period T3 is higher, the third drum cleaning process is performed at this stage, which results in a large amount of spray water being splashed, and the spray water just before being sprayed to the inner drum rear wall 21 can remove the dirt on the inner drum rear wall 21, so that the spray water is splashed under the centrifugal force of the high-speed rotation of the inner drum 2, and the effective cleaning of the inner drum rear wall 21 cannot be realized. Therefore, the third cylinder cleaning process is synchronously performed in the second dehydration period T2, the power burden of the motor is small in the dehydration period, the rotation speed of the inner cylinder 2 is moderate, and the optimal cleaning effect on the rear wall 21 of the inner cylinder can be obtained.

According to an exemplary embodiment, the first drum cleaning process is performed after the main wash washing stage and before the main wash water stage, so as to avoid that stains on the laundry before the main wash washing stage have an influence on the cleaning effect, and that dirt washed away during the first drum cleaning process has an influence on the laundry after rinsing. The second drum cleaning process is performed before the final dehydration stage after the rinsing and washing stage to avoid the influence of stains on the laundry before the main washing and washing stage on the cleaning effect, and the influence of the cleaning effect due to the adhesion of the laundry and the foam in the drum to the inner wall 12 of the outer drum under the sloshing action of the water flow of the higher water level before the rinsing. The third cartridge cleaning process is performed in the main wash water stage and in the final dehydration stage, and the time consumed for the cartridge cleaning process can be reduced while ensuring the cleaning effect.

Fig. 7 is a control flow diagram of a washing machine according to an exemplary embodiment, a washing program of the washing machine including the steps of:

s71, starting a washing program;

S72, operating a main washing stage;

s73, executing a first barrel cleaning process after the main washing stage is finished;

s74, operating a main eluting stage;

S75, performing a third barrel cleaning process in a main eluting water stage;

s76, running a rinsing and washing stage;

s77, executing a second cylinder cleaning process after the rinsing and washing phases are finished;

S78, entering a final dehydration stage;

s79, the third drum cleaning process is performed again in the final dehydration stage.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

Logic and/or steps represented in the flowcharts or otherwise described herein, e.g., a ordered listing of executable instructions for implementing logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection (electronic device) having one or more wires, a portable computer diskette (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). In addition, the computer readable medium may even be paper or other suitable medium on which the program is printed, as the program may be electronically captured, via, for instance, optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner, if necessary, and then stored in a computer memory.

It is to be understood that portions of the present application may be implemented in hardware, software, firmware, or a combination thereof. In the above-described embodiments, the various steps or methods may be implemented in software or firmware stored in a memory and executed by a suitable instruction execution system. As with the other embodiments, if implemented in hardware, may be implemented using any one or combination of the following techniques, as is well known in the art: discrete logic circuits having logic gates for implementing logic functions on data signals, application specific integrated circuits having suitable combinational logic gates, programmable Gate Arrays (PGAs), field Programmable Gate Arrays (FPGAs), and the like.

Those of ordinary skill in the art will appreciate that all or a portion of the steps carried out in the method of the above-described embodiments may be implemented by a program to instruct related hardware, where the program may be stored in a computer readable storage medium, and where the program, when executed, includes one or a combination of the steps of the method embodiments.

In addition, each functional unit in the embodiments of the present application may be integrated in one processing module, or each unit may exist alone physically, or two or more units may be integrated in one module. The integrated modules may be implemented in hardware or in software functional modules. The integrated modules may also be stored in a computer readable storage medium if implemented in the form of software functional modules and sold or used as a stand-alone product.

The above-mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk, or the like. While embodiments of the present application have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the application, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the application.

Claims (12)

1. A washing machine, comprising:

the outer cylinder comprises an outer cylinder rear wall, and the inner cylinder comprises an inner cylinder rear wall which is opposite to the inner cylinder rear wall;

The water storage device is arranged at the bottom of the outer cylinder and comprises a water storage cavity, and a passage capable of being opened and closed is arranged between the water storage cavity and the outer cylinder;

The spray device comprises a spray header and a spray pipe, the spray header is arranged on the rear wall of the outer cylinder, and the spray pipe is used for communicating the spray header with the water storage cavity;

A control device configured to control a plurality of drum cleaning processes, respectively performed before, after and/or while different washing phases of a washing program, in which different drum cleaning strategies are selected to clean different areas of a washing machine, and to control the spray device to spray clean the inner drum rear wall during at least one of the drum cleaning processes;

Wherein: the washing program comprises a main washing stage, a main eluting water stage, a rinsing washing stage and a final dewatering stage which are sequentially executed, the barrel cleaning strategy comprises barrel cleaning parameters, and the barrel cleaning parameters comprise one or more of spray cleaning time, barrel rotating speed, barrel water inlet level and water inlet level of the water storage cavity.

2. The washing machine as claimed in claim 1, wherein the shower head is provided in a radial direction of the rear wall of the outer tub, the shower head including a plurality of shower holes, the shower direction of the plurality of shower holes being toward the rear wall of the inner tub.

3. A control method of a washing machine, characterized in that the control method is for controlling the washing machine according to claim 1 or 2, the control method comprising:

performing a plurality of drum cleaning processes during a washing course of the washing machine, the plurality of drum cleaning processes being performed before, after and/or at different washing stages of the washing course, respectively;

In the cleaning process of the multiple drums, different drum cleaning strategies are selected to clean different areas of the washing machine;

The washing program comprises a main washing stage, a main eluting water stage, a rinsing washing stage and a final dewatering stage which are sequentially executed, the barrel cleaning strategy comprises barrel cleaning parameters, and the barrel cleaning parameters comprise one or more of spraying cleaning time, inner barrel rotating speed, inner barrel water inlet level and water inlet level of the water storage cavity.

4. A control method of a washing machine according to claim 3, further comprising:

in response to the cartridge cleaning control instruction, the plurality of cartridge cleaning processes are controlled to be sequentially performed in a preset order, or a part of the cartridge cleaning processes among the plurality of cartridge cleaning processes may be selected to be performed in a corresponding execution timing.

5. The control method of a washing machine as claimed in claim 3 or 4, wherein the plurality of drum cleaning processes includes a first drum cleaning process for cleaning an outer sidewall of the inner drum;

In the cleaning process of the first cylinder, under the condition that a passage between the outer cylinder and the water storage cavity is kept to be disconnected, after the inner cylinder is filled with water to a first water level, the inner cylinder is controlled to rotate for a first duration at a first rotation speed.

6. The control method of a washing machine according to claim 5, wherein the first drum cleaning process is performed after the main wash stage and before the main wash stage;

And/or, the first drum cleaning process is performed after the rinse wash stage and before the final spin stage.

7. The control method of a washing machine as claimed in claim 5, wherein the plurality of tub cleaning processes includes a second tub cleaning process for cleaning an inner wall of the outer tub;

in the second cylinder cleaning process, under the condition that a passage between the outer cylinder and the water storage cavity is kept to be disconnected, after the inner cylinder is filled with water to a second water level, the inner cylinder is controlled to rotate for a second duration at a second rotating speed;

The second water level is greater than the first water level.

8. The control method of a washing machine according to claim 7, wherein the second drum cleaning process is performed after the main wash stage and before the main wash stage;

And/or, the second drum cleaning process is performed after the rinse wash stage and before the final spin stage.

9. The control method of a washing machine as claimed in claim 7, wherein the plurality of drum cleaning processes includes a third drum cleaning process for cleaning the inner drum rear wall;

In the cleaning process of the third cylinder, under the condition that the communication of the passage between the outer cylinder and the water storage cavity is kept, after the water level in the water storage cavity reaches a third water level, the inner cylinder is controlled to rotate at a third rotating speed, water in the water storage cavity is controlled to enter the spraying device, and the spraying device is controlled to spray and clean the rear wall of the inner cylinder for a third period of time.

10. The control method of a washing machine according to claim 9, wherein the third drum cleaning process is performed in the main wash water stage;

and/or, the third drum cleaning process is performed in the final dewatering stage.

11. The control method of a washing machine according to claim 9, wherein the main wash water stage and the final dehydration stage each include a first dehydration period, a second dehydration period, and a third dehydration period that are sequentially performed, a rotational speed of the first dehydration period being less than or equal to a rotational speed of the second dehydration period, a rotational speed of the second dehydration period being less than a rotational speed of the third dehydration period;

the third cartridge cleaning process is in the second dewatering period of the main wash water stage and/or the final dewatering stage.

12. The control method of a washing machine according to claim 9, wherein the first tub cleaning process is performed after the main wash phase and before the main wash water phase;

The second bowl cleaning process is performed after the rinse wash stage and before the final spin stage;

the third cartridge cleaning process is performed in the main wash water stage and in the final dewatering stage.