Drum washing machine cleaning control method and washing machine

Abstract

The present application relates to a cleaning control method for a drum washing machine and the washing machine itself. The method sets different water levels during different cleaning stages: a second water level and a first water level, with the first water level being higher than the second water level. The heated rinse sequence utilizes the second water level, heating the water in the second water level to a preset temperature, T0, and then rinsing and dehydrating the drum. The second water level is lower than the first water level during the rinse-and-dehydration sequence, reducing heating power consumption during drum cleaning. The high-temperature rinse principle softens dirt in the drum, and the friction and impact force between the water and the drum surface during high-speed rotation and rinsing clean the drum, flushing away dirt and achieving a thorough cleaning.

Description

Technical Field

[0001] The present application relates to the technical field of washing machines, and in particular to a drum washing machine cleaning control method and a washing machine. Background Art

[0002] With the rapid development of the washing machine industry and the continuous improvement of people's living standards, washing machines have gradually entered the homes of ordinary people, freeing people from the arduous task of laundry. However, consumers' requirements and expectations for washing machines are no longer limited to the cleaning effect of clothes. They are more concerned about the accumulation of lint and the breeding of bacteria between the inner and outer drums of some washing machines.

[0003] Currently, drum washing machines often use a self-cleaning function that combines high-temperature washing with rinsing at varying speeds. However, some drum cleaning systems use excessively high water levels, which results in significant power consumption during heating. Furthermore, excessively high water levels can cause secondary contamination of the drum by flushed debris, significantly reducing the user experience with the drum cleaning function.

[0004] In order to solve these problems, it is necessary to design a reasonable drum cleaning water level, reduce the power consumption of drum cleaning heating water, and achieve the effect of reducing the energy consumption of the drum washing machine and ensuring the drum cleaning function. Summary of the Invention

[0005] In order to overcome the problems existing in the related art, the present application provides a drum washing machine cleaning control method, which can reduce the energy consumption of the drum washing machine and ensure the drum cleaning function.

[0006] A first aspect of the present application provides a drum washing machine cleaning control method, comprising:

[0007] In the heating and rinsing program, water is added to the drum to the second water level, the water in the second water level is heated to a preset temperature T0, and the drum is rinsed and dehydrated;

[0008] In the rinsing and dehydration procedure, water is added to the drum to a first water level, and the drum is rinsed and dehydrated; wherein the first water level is higher than the second water level.

[0009] In one embodiment, before executing the heating rinsing procedure, the method further includes: executing a flushing rinsing procedure;

[0010] In the flushing and rinsing procedure, water is added to the drum to a third water level, and the drum is subjected to tangential flushing, rinsing and dehydration, wherein the third water level is lower than the second water level.

[0011] In one embodiment, the tangential flushing, rinsing and dehydrating of the drum comprises:

[0012] The inner drum rotates forward at a speed of N1 rpm / min for 1 minute, reverses for 2 minutes to flush tangentially, and stands still for 3 minutes to drain the water in the drum;

[0013] The range of N1 rpm / min is 120-150 rpm / min;

[0014] The sum of the X1 and X2 times is 30 to 50 minutes.

[0015] In one embodiment, heating the water at the second water level to a preset temperature T0 and rinsing and dehydrating the drum includes:

[0016] The water in the second water level is heated, and the inner drum rotates forward for 4 minutes and reverse for 5 minutes at a speed of N2 rpm / min until the water temperature in the second water level is greater than or equal to the preset temperature T0. After standing for 3 minutes, the water in the drum is drained;

[0017] The N2 rpm / min range is 120-150 rpm / min;

[0018] The sum of the times X4 and X5 is less than the heating time of the water at the second water level, and the heating time is 30 to 50 minutes.

[0019] In one embodiment, X3 is less than or equal to 3 minutes.

[0020] In one embodiment, the preset temperature T0 is 90-95 degrees Celsius.

[0021] In one embodiment, the distance L from the second water level to the lowest point of the drum inner tube is less than or equal to 50 mm.

[0022] In one embodiment, the drum inner cylinder comprises a cylindrical side wall plate and a circular rear bottom plate, wherein the circular rear bottom plate is provided with a punching hole, and the distance from the lowest point of the punching hole to the lowest point of the inner cylinder is less than or equal to 50 mm;

[0023] The second water level is located at the lowest point of the punching hole.

[0024] In one embodiment, the first water level is higher than the highest point of the punching hole.

[0025] A second aspect of the present application provides a washing machine for executing any of the above-mentioned drum washing machine cleaning control methods.

[0026] The technical solution provided in the present application may include the following beneficial effects: the cleaning control method sets different water levels in different cleaning stages, including a second water level and a first water level, and the first water level is higher than the second water level.

[0027] The heating and rinsing program adopts a second water level, heats the water in the second water level to a preset temperature T0, and rinses and dehydrates the drum. The second water level is lower than the first water level of the rinsing and dehydrating program. Compared with the prior art, which does not distinguish between water levels, in order to ensure the cleaning effect, the heating and rinsing program is set at the same water level as the rinsing and dehydrating program. The heating and rinsing program consumes a lot of electricity when heating water. The setting of the second water level lower than the first water level in this application can reduce the heating power consumption in drum cleaning, and utilizes the high-temperature rinsing principle to soften the dirt on the drum and, under the high-speed rotation and rinsing of the drum, utilizes the friction and impact force between the water and the drum surface to clean the drum, which can flush away the dirt on the drum and achieve the purpose of thorough cleaning.

[0028] The first water level is higher than the second water level. The first water level is set for the rinse and dehydration program. The higher water level can be used to rinse and drain the residue after cleaning the drum again, avoiding secondary contamination of the inner drum and achieving the purpose of thorough cleaning.

[0029] Therefore, the drum washing machine cleaning control method of the present application sets different water levels in different cleaning stages and combines the high-temperature rinsing principle, which not only ensures the cleaning effect of the drum washing machine but also reduces the energy consumption of the drum washing machine for cleaning and heating.

[0030] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The above and other objects, features and advantages of the present application will become more apparent through a more detailed description of exemplary embodiments of the present application in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the present application.

[0032] Figure 1 1 is a flow chart of a drum washing machine cleaning control method according to an embodiment of the present application;

[0033] Figure 2 1 is another flow chart of a drum washing machine cleaning control method according to an embodiment of the present application;

[0034] Figure 3 Schematic diagram of the water level shown in the embodiment of the present application;

[0035] Figure 4 This is shown in the embodiment of the present application Figure 3 A magnified view of center. DETAILED DESCRIPTION

[0036] The preferred embodiments of the present application will be described in more detail below with reference to the accompanying drawings. Although the preferred embodiments of the present application are shown in the accompanying drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments described herein. Instead, these embodiments are provided to make the present application more thorough and complete, and to fully convey the scope of the present application to those skilled in the art.

[0037] The terms used in this application are for the purpose of describing specific embodiments only and are not intended to limit this application. As used in this application and the appended claims, the singular forms "a," "an," "the," and "the" are intended to include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the term "and / or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

[0038] It should be understood that although the terms "first", "second", "third", etc. may be used in this application to describe various information, this information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this application, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0039] Example 1

[0040] With the rapid development of the washing machine industry and the continuous improvement of people's living standards, washing machines have gradually entered the homes of ordinary people, freeing people from the arduous task of laundry. However, consumers' requirements and expectations for washing machines are no longer limited to the cleaning effect of clothes. They are more concerned about washing health and preventing the accumulation of lint and bacteria between the inner and outer drums of washing machines.

[0041] Currently, drum washing machines often use a self-cleaning function that combines high-temperature washing with varying speeds. However, some drum cleaning systems use excessively high water levels, consuming significant amounts of electricity during heating. Furthermore, excessively high water levels can cause the rinsed debris to re-contaminate the drum, significantly reducing the user experience with the drum cleaning function.

[0042] In order to solve these problems, the embodiment of the present application provides a drum washing machine cleaning control method, designs a reasonable drum cleaning water level, reduces the power consumption of drum cleaning heating water, and achieves the effect of reducing the energy consumption of the drum washing machine and ensuring the drum cleaning function.

[0043] The technical solutions of the embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0044] Figure 1 1 is a flow chart of a drum washing machine cleaning control method according to an embodiment of the present application;

[0045] See also Figure 1 .

[0046] The drum washing machine of the present application embodiment includes an inner drum 2, an outer drum 1 and a heating device.

[0047] The drum washing machine of the present application, like the drum washing machine of the prior art, includes an inner drum 2, an outer drum 1, and a heating device. The drum washing machine is not limited to these three structures, and corresponding structures can be configured according to actual needs. When the drum washing machine needs to be cleaned, the drum washing machine starts the drum cleaning mode and performs the following steps:

[0048] S1 heating and rinsing procedure: water is added to the drum to the second water level, the water in the second water level is heated to a preset temperature T0, and the drum is rinsed and dehydrated;

[0049] S2 is a rinsing and dehydrating procedure, in which water is added to the drum to a first water level, and the drum is rinsed and dehydrated; wherein the first water level is higher than the second water level.

[0050] In the heating and rinsing procedure of the embodiment of the present application, the heating device heats the water in the second water level to the preset temperature T0 while rinsing, or the heating device may heat the water in the second water level to the preset temperature T0 before rinsing.

[0051] The second water level set in the embodiment of the present application is lower than the first water level, and heating and high-temperature rinsing are performed at the second water level, which can solve the problem in the existing prior art that no water level distinction is set for each cleaning stage, and in order to pursue the cleaning effect, the drum cleaning water level is set too high, resulting in a large amount of electricity consumption when the drum cleaning function is heated. At the same time, the water level is too high, resulting in the flushed hair debris secondary contaminating the inner drum 2 of the washing machine, which greatly reduces the user experience of the drum cleaning function.

[0052] Beneficial effects of the embodiments of the present application: The cleaning control method sets different water levels through different cleaning stages, including a second water level and a first water level, and the first water level is higher than the second water level.

[0053] The heating and rinsing program adopts a second water level, heats the water in the second water level to a preset temperature T0, and rinses and dehydrates the drum. The second water level is lower than the first water level of the rinsing and dehydrating program. Compared with the prior art, the water level is not distinguished. In order to ensure the cleaning effect, the heating and rinsing program is set at the same water level as the rinsing and dehydrating program. The setting of the second water level in this application is lower than the first water level, which can reduce the heating power consumption in drum cleaning, and utilize the high-temperature rinsing principle to soften the dirt on the drum and utilize the friction and impact force between the water and the drum surface to clean the drum under the high-speed rotation of the drum for rinsing, which can flush away the dirt on the drum and achieve the purpose of thorough cleaning.

[0054] Therefore, the drum washing machine cleaning control method of the present application sets different water levels in different cleaning stages and combines the high-temperature rinsing principle, which not only ensures the cleaning effect of the drum washing machine but also reduces the energy consumption of the drum washing machine for cleaning and heating.

[0055] Example 2

[0056] The above embodiment introduces a method for controlling the cleaning of a drum washing machine. In order to further improve the cleaning effect, the embodiment of the present application will further invent and design a method for controlling the cleaning of a drum washing machine.

[0057] Figure 2 1 is another flow chart of a drum washing machine cleaning control method according to an embodiment of the present application;

[0058] Figure 3 Schematic diagram of the water level shown in the embodiment of the present application;

[0059] Figure 4 This is shown in the embodiment of the present application Figure 3 A magnified view of center.

[0060] See also Figure 2 , Figure 3 and Figure 4 .

[0061] Before executing the heated rinsing procedure, the method further includes: executing a flushing rinsing procedure;

[0062] S0 flushing and rinsing procedure, water is added to the drum to the third water level, the inner drum 2 rotates forward at a speed of N1 rpm / min for X1 min, reverses for X2 min, and stands for X3 min to drain the water in the inner drum 2, wherein the third water level is lower than the second water level.

[0063] For example, the third water level is at the lowest point of the inner drum 2 of the drum washing machine. When the inner drum 2 of the drum washing machine rotates at high speed, the outer surface of the inner drum 2 is just tangent to the water surface, forming a force tangential to the outer surface of the inner drum 2. The water at the third water level continuously flushes the outer surface of the inner drum 2 along the tangential direction.

[0064] The flushing and rinsing program sets the third water level to match the inner drum 2 speed N1 rpm / min, and performs forward rotation X1min and reverse rotation X2min. For example, forward rotation is clockwise rotation and reverse rotation is counterclockwise rotation. In the embodiment of the present application, the range of N1 rpm / min is 120-150 rpm / min;

[0065] The sum of X1 and X2 time is 30 to 50 minutes.

[0066] For example, in the flushing and rinsing program, the forward rotation is X1 min and the reverse rotation is X2 min. It can be forward rotation for X1 min and then reverse rotation for X2 min, or it can be forward rotation and reverse rotation alternately. The sum of the forward rotation time is X1 min, and the sum of the reverse rotation time is X2 min. Both methods fall within the scope of protection of this application.

[0067] The flushing and rinsing program can use the water surface and the lowest point of the washing inner drum 2 to form a tangential flushing. Under the high-speed rotation of the drum, the dirt on the back of the inner drum 2 is flushed down. After the flushing process is completed, it is allowed to stand and the dirt is settled and discharged.

[0068] S1: Heating and rinsing procedure: Water is filled into the drum to the second water level SW2. The heating device heats the water in the drum. The inner drum 2 rotates forward at a speed of N2 rpm / min for 4 minutes and reverse for 5 minutes. The water temperature in the drum is detected. If the water temperature is greater than or equal to the preset temperature T0, the water in the inner drum 2 is drained after standing for 3 minutes. If the water temperature is less than the preset temperature T0, heating is continued until the water temperature is greater than or equal to the preset temperature T0. After standing for 3 minutes, the water in the inner drum 2 is drained and the rinsing and dehydration procedure is performed.

[0069] The heating and rinsing program sets the second water level and the inner drum 2 speed to N2 rpm / min. The heating device heats the water in the drum, and the inner drum 2 rotates forward for X4 minutes and reversely for X5 minutes. For example, forward rotation is clockwise rotation and reverse rotation is counterclockwise rotation. In this embodiment of the application, the range of N2 rpm / min is 120-150 rpm / min;

[0070] The sum of the times X4 and X5 is less than the heating time of the water at the second water level, and the heating time is 30 to 50 minutes.

[0071] For example, in the heating and rinsing program, the forward rotation time is X4 minutes and the reverse rotation time is X5 minutes. It can be forward rotation for X4 minutes and then reverse rotation for X5 minutes, or it can be forward rotation and reverse rotation alternately. The sum of the forward rotation time is X4 minutes, and the sum of the reverse rotation time is X5 minutes. Both methods fall within the scope of protection of this application.

[0072] For example, if the water temperature is lower than the preset temperature T0, heating is continued until the water temperature is greater than or equal to the preset temperature T0. After standing for X3 minutes, the water in the inner drum 2 is drained and the rinsing and dehydration program is performed. In this step, when the water in the drum is heated, the inner drum 2 can rotate at the same time or at different times. Both processing methods fall within the scope of protection of this application.

[0073] The second water level SW2 is located less than or equal to 50 mm from the lowest point L of the inner drum 2. This water level reduces the power consumption of heating washing during drum cleaning. The heating rinsing program sets the second water level to match the inner drum 2 speed of N2rpm / min, and heats the water through the heating device. The high-temperature boiling and washing principle is used to soften the dirt attached to the drum, and the inner drum 2 rotates and stirs the water flow to flush the dirt. After the flushing process is completed, it is allowed to stand to allow the dirt to settle and be discharged.

[0074] S2 is a rinsing and dehydration procedure, in which water is added to the drum to a first water level for rinsing and dehydration. The number of rinsing and dehydration is P, where P is an integer greater than 1.

[0075] The first water level is higher than the second water level. The first water level is set for the rinse and dehydration program. The higher water level is used to rinse and drain the residue after cleaning the drum again, avoiding secondary contamination of the inner drum 2 and achieving the purpose of thorough cleaning.

[0076] The embodiment of the present application does not limit the number of rinse and dehydration times. The user can set it according to actual conditions. The number of rinse and dehydration times is set within the protection scope of this application.

[0077] Exemplarily, the second water level is located at a distance less than or equal to 50 mm from the lowest point L of the inner cylinder 2 .

[0078] The beneficial effects of the embodiments of the present application: The cleaning control method sets different water levels through different cleaning stages, and the three different water level settings are the first water level, the second water level, and the third water level. The second water level is located less than or equal to 50 mm from the lowest point L of the inner drum. The first water level is higher than the second water level, and the second water level is higher than the third water level.

[0079] Then the third water level is lower than the second water level, and the third water level is located at the lowest point of the inner drum. The flushing and rinsing program sets the third water level with the N1 rpm / min inner drum speed, which can use the water surface and the lowest point of the washing inner drum to form a tangential flushing. Under the high-speed rotation of the drum, the dirt on the back of the inner drum is flushed down. After the flushing process is completed, it is allowed to stand to allow the dirt to settle and be discharged.

[0080] The second water level is located less than or equal to 50 mm from the lowest point L of the inner drum. The second water level is lower than the first water level, which reduces the power consumption of heating washing during drum cleaning. The heating rinsing program sets the second water level to match the inner drum speed of N2 rpm / min, and heats the water through the heating device. The high-temperature boiling and washing principle is used to soften the hair attached to the drum, and the inner drum rotates and stirs the water flow to flush away the dirt. After the flushing process is completed, it is allowed to stand to allow the dirt to settle and be discharged.

[0081] The first water level is higher than the second water level. The first water level is set for the rinse and dehydration program. The higher water level can be used to rinse and drain the residue after cleaning the drum again, avoiding secondary contamination of the inner drum and achieving the purpose of thorough cleaning.

[0082] Therefore, the drum washing machine cleaning control method of the present application can reduce the energy consumption of the washing machine and ensure the effectiveness of the drum cleaning function and avoid the problem of secondary contamination of the inner drum by setting three water levels, combining the corresponding inner drum speed, and the high-temperature boiling and washing principle of the heating device.

[0083] Example 3

[0084] The above embodiment 2 introduces the cleaning control method of the drum washing machine. The embodiment of this application will further introduce the cleaning control method of the drum washing machine in combination with actual applications.

[0085] The drum washing machine cleaning control method of the embodiment of the present application includes the following steps:

[0086] S0 flushing and rinsing program: fill the drum with water to the third water level, rotate the inner drum 2 forward at a speed of N1 rpm / min for X1 minute, reverse for X2 minutes, stand for X3 minutes to drain the water in the inner drum 2, and perform the heating and rinsing program;

[0087] Exemplarily, the rotation speed N1 rpm / min is 150 rpm / min, which is a high speed. In conjunction with the third water level, the inner drum 2 rotates at a high speed, and the rotating inner drum 2 hits the water surface. The friction between the water and the surface of the inner drum 2 and the water droplets splashed after the inner drum 2 hits the water surface are used to clean the outer surface of the inner drum 2 and the inner surface of the outer drum 1, and the dirt on the outer surface of the inner drum 2 and the inner surface of the outer drum 1 can be washed away. The water in the inner drum 2 is drained after standing for X3 minutes, X3 is less than or equal to 3 minutes, and the time X1 and X2 are 30 minutes.

[0088] S1: Heating and rinsing procedure: water is poured into the drum to the second water level SW2. The heating device heats the water in the drum. The inner drum 2 rotates forward at a speed of N2 rpm / min for 4 minutes and reverse for 5 minutes. The water temperature in the drum is detected. If the water temperature is greater than or equal to the preset temperature T0, the water in the inner drum 2 is drained after standing for 3 minutes, and the rinsing and dehydration procedure is performed. If the water temperature is less than the preset temperature T0, heating is continued until the water temperature is greater than or equal to the preset temperature T0. The water in the inner drum 2 is drained after standing for 3 minutes, and the rinsing and dehydration procedure is performed.

[0089] For example, if the water temperature is lower than the preset temperature T0, the heating device continues to heat the water in the drum, and the inner drum 2 rotates forward for X44 minutes and reversely for X55 minutes at a speed of N2 rpm / min until the water temperature is greater than or equal to the preset temperature T0. After standing for X3 minutes, the water in the inner drum 2 is drained and the rinsing and dehydration program is performed.

[0090] For example, during the continued heating stage, the inner drum 2 continues to rotate forward for X44 minutes and reverse for X55 minutes. It can be forward rotation for X44 minutes and then reverse rotation for X55 minutes, or it can be forward rotation and reverse rotation alternately, with the sum of the forward rotation time being X44 minutes and the sum of the reverse rotation time being X55 minutes.

[0091] The speed range of N2rpm / min is 120~150rpm / min, which is a high speed. In conjunction with the second water level, the water is heated by the heating device. The high-temperature boiling and washing principle is used to soften the hair debris attached to the drum tripod. When the inner drum 2 rotates at a high speed, the rotating inner drum 2 hits the water surface. The friction between the water and the surface of the inner drum 2 and the water droplets splashed after the inner drum 2 hits the water surface are used to clean the inner surface of the inner drum 2, and the dirt on the inner surface of the inner drum 2 can be washed away.

[0092] Exemplarily, the sum of X4 and X5 is less than the heating time of the heating device, and the sum of X4, X5, X44, and X55 is less than the heating time of the heating device, and the heating time is 30 to 50 minutes.

[0093] Exemplarily, the preset temperature T0 ranges from 90 to 95 degrees Celsius, and the embodiment of the present application exemplarily adopts 90 degrees Celsius.

[0094] S2 is a rinsing and dehydration procedure, in which water is added to the drum to a first water level for rinsing and dehydration. The number of rinsing and dehydration is P, where P is an integer greater than 1.

[0095] Beneficial effects of the embodiments of the present application: The embodiments of the present application can further ensure the cleaning effect by further limiting the rotation speed of the inner drum of the drum washing machine when the cleaning mode is started, as well as further limiting the rotation time and heating time.

[0096] Example 4

[0097] Example 3 The embodiment of the present application further limits the inner drum rotation speed when the drum washing machine starts the cleaning mode, as well as the rotation time and heating time. In order to further improve the cleaning effect and cleaning efficiency, the embodiment of the present application will further limit the water level during cleaning.

[0098] Figure 2 1 is another flow chart of a drum washing machine cleaning control method according to an embodiment of the present application;

[0099] See also Figure 2 .

[0100] The drum washing machine cleaning control method of the embodiment of the present application includes the following steps:

[0101] S0 flushing and rinsing program, water is added to the drum to the third water level, the inner drum 2 rotates forward at a speed of N1 rpm / min for X1 min, reverses for X2 min, stands still for X3 min to drain the water in the inner drum 2, and performs the heating and rinsing program.

[0102] For example, the third water level of the embodiment of the present application is located at the lowest point of the inner drum 2. This position can utilize the principle of tangential flushing formed by the liquid surface of the water and the lowest point of the washing inner drum 2. When the drum rotates at high speed, the dirt on the back of the inner drum 2 and the inner surface of the outer drum 1 is flushed down. After the flushing process is completed, it is allowed to stand and the dirt is settled and discharged.

[0103] In the S1 heating and rinsing procedure, water is poured into the drum to the second water level SW2. The heating device heats the water in the drum. The inner drum 2 rotates forward at a speed of N2 rpm / min for X4 minutes and reverse for X5 minutes until the water temperature is greater than or equal to the preset temperature T0. After standing for X3 minutes, the water in the inner drum 2 is drained.

[0104] For example, the inner cylinder 2 includes a cylindrical side wall plate and a circular rear bottom plate. The circular rear bottom plate is provided with a punching hole. The distance from the lowest point of the punching hole to the lowest point of the inner cylinder 2 is less than or equal to 50 mm.

[0105] The second water level SW2 is located at the lowest point of the punching hole, which can prevent dirt from entering the inner tube 2 through the punching hole and causing secondary pollution to the inner tube 2. In addition, the second water level is set, and the rotating inner tube 2 hits the water surface. The friction between the water and the surface of the inner tube 2 and the water droplets splashed after the inner tube 2 hits the water surface are used to clean the inner surface of the inner tube 2, which can flush down the dirt on the inner surface of the inner tube 2. After the flushing process is completed, it is allowed to stand to allow the dirt to settle and be discharged.

[0106] S2 is a rinsing and dehydration procedure, in which water is added to the drum to a first water level for rinsing and dehydration. The number of rinsing and dehydration is P, where P is an integer greater than 1.

[0107] For example, the first water level is higher than the highest point of the punching hole. This water level can have enough water to rinse the drum washing machine, rinse and drain the residue after the drum is cleaned, avoid secondary contamination of the inner drum 2, and achieve the purpose of thorough cleaning.

[0108] The embodiment of the present application also includes a washing machine, which includes an inner drum 2, an outer drum 1 and a heating device (not shown in the figure). The washing machine can execute any of the drum washing machine cleaning control methods mentioned in this embodiment and embodiments 1-3 above.

[0109] Beneficial effects of the embodiments of the present application: The drum washing machine cleaning control method of the present application ensures the cleaning effect of the inner and outer drums of the drum washing machine and avoids the problem of secondary contamination of the inner drum by setting different water levels in different cleaning stages and combining the corresponding inner drum speed.

[0110] The embodiments of the present application have been described above. The above description is illustrative and not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is selected to best explain the principles of the embodiments, their practical applications, or improvements to the technology in the market, or to enable other persons skilled in the art to understand the embodiments disclosed herein.

Claims

1. A drum washing machine cleaning control method, characterized in that: include: S1, heating and rinsing program, filling water into the drum to the second water level, heating the water in the second water level to a preset temperature T0, and rinsing and dehydrating the drum; S2, rinsing and dehydrating program, filling water into the drum to a first water level, and rinsing and dehydrating the drum; wherein the first water level is higher than the second water level; the inner drum of the drum includes a cylindrical side wall plate and a circular rear bottom plate, the circular rear bottom plate is provided with a punched hole, and the distance from the lowest point of the punched hole to the lowest point of the inner drum is less than or equal to 50 mm; The second water level is located at the lowest point of the punching hole.

2. The drum washing machine cleaning control method according to claim 1, characterized in that: Before executing the heating rinsing procedure, the method further includes: executing a flushing rinsing procedure; In the flushing and rinsing procedure, water is added to the drum to a third water level, and the drum is subjected to tangential flushing, rinsing and dehydration, wherein the third water level is lower than the second water level.

3. The drum washing machine cleaning control method according to claim 2, characterized in that: The tangential flushing, rinsing and dehydrating of the drum comprises: The inner drum rotates forward at a speed of N1 rpm / min for 1 minute, reverses for 2 minutes to flush tangentially, and stands still for 3 minutes to drain the water in the drum; The range of N1 rpm / min is 120~150rpm / min; The sum of the X1 and X2 times is 30 to 50 minutes.

4. The drum washing machine cleaning control method according to claim 1, characterized in that: The step of heating the water at the second water level to a preset temperature T0 and rinsing and dehydrating the drum comprises: The water in the second water level is heated, and the inner drum rotates forward for 4 minutes and reverse for 5 minutes at a speed of N2 rpm / min until the water temperature in the second water level is greater than or equal to the preset temperature T0. After standing for 3 minutes, the water in the drum is drained; The range of N2 rpm / min is 120~150rpm / min; The sum of the times X4 and X5 is less than the heating time of the water at the second water level, and the heating time is 30 to 50 minutes.

5. The drum washing machine cleaning control method according to claim 3 or 4, characterized in that: The X3 is less than or equal to 3 minutes.

6. The drum washing machine cleaning control method according to claim 1, characterized in that: The preset temperature T0 is 90-95 degrees Celsius.

7. The drum washing machine cleaning control method according to claim 1, characterized in that: The distance L from the second water level to the lowest point of the drum inner tube is less than or equal to 50 mm.

8. The drum washing machine cleaning control method according to claim 1, characterized in that: The first water level is higher than the highest point of the punching hole.

9. A washing machine, characterized in that: Used to execute the drum washing machine cleaning control method according to any one of claims 1 to 8.

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