CN111575993A - Drum washing machine and control method thereof - Google Patents

Abstract

The invention belongs to the technical field of washing machines, and aims to solve the problem that stubborn dirt is easily formed in the lower area of the pleated part of the window pad of the existing drum washing machine and is inconvenient to clean. For this purpose, the present invention provides a drum washing machine and a control method thereof, the drum washing machine includes a drum, a window pad, a drainage assembly and a cleaning assembly, the drum includes an outer tub and an inner tub rotatably arranged in the outer tub, the window pad and the drainage assembly respectively connected with the outer cylinder, the window mat includes a pleated part, the water inlet of the cleaning component is connected with the drainage component, and the drain opening of the cleaning component is connected with the pleated part and is arranged toward the lower part of the pleated part. The invention can use the drum drainage to clean the lower area of the folded part of the window mat, avoid the formation of stubborn dirt, so that the user does not need to clean it repeatedly, and effectively solves the problem that stubborn dirt is easily formed in the lower area of the folded part of the window mat of the drum washing machine. In addition, the problem of inconvenient cleaning is improved, and the user experience is improved, and it is conducive to environmental protection.

Description

Drum washing machine and control method thereof

technical field

The invention belongs to the technical field of washing machines, and specifically provides a drum washing machine and a control method thereof.

Background technique

The front-loading washing machine is designed according to the principle of hitting the clothes with a hammer. It has many advantages such as low wear, no tangling, washable cashmere, silk fabrics, and large capacity.

The existing front-loading washing machines are all provided with window pads, which are used to connect the opening of the front panel and the opening of the outer tub of the washing machine to ensure the sealing performance of the washing machine. When washing clothes, the outer tub will vibrate and displace. In order to prevent the washing machine from being damaged, the window pad is made of a flexible material and is formed with a wrinkled part, so that it has proper elastic and stretchable properties. During the washing process, the washing water will enter into the wrinkled part of the window mat, and will accumulate in the lower area of the wrinkled part, which is an arc where the wrinkled part is located at the lowest point in the vertical direction. Under the action, the dirt particles attached to the washing water will be precipitated and accumulated in this area. Because the structure of the window mat is relatively complex and the communication with the drum is not very smooth, the washing water in the lower area of the fold will be almost static. Even if the inner cylinder rotates, it cannot drive this part of the washing water to flow violently, and stubborn dirt will be formed in the long run, and since the dirt is located in the folds, it is very inconvenient to clean. It can be seen that, during the use of the current front-loading washing machine, stubborn dirt is easily formed in the lower region of the folded portion of the window pad, which is inconvenient to clean.

Therefore, there is a need in the art for a new drum washing machine and a control method thereof to solve the above problems.

SUMMARY OF THE INVENTION

In order to solve the above problems in the prior art, that is, in order to solve the problem that stubborn dirt is easily formed in the lower area of the wrinkled portion of the window pad of the existing drum washing machine and is inconvenient to clean, the present invention provides a drum washing machine, which includes a drum , window pad, drainage assembly and cleaning assembly, the drum includes an outer cylinder and an inner cylinder rotatably arranged in the outer cylinder, the window pad and the drainage assembly are respectively connected with the outer cylinder, the window pad includes a wrinkled part, and the water inlet of the cleaning assembly is connected with the drainage assembly, The water outlet of the cleaning assembly is connected to the pleated part and is disposed toward the lower part of the pleated part.

In the preferred technical solution of the above-mentioned drum washing machine, the cleaning assembly includes a pump member, a first communication member and a second communication member, the pump member is connected to the drainage assembly through the first communication member, and the pump member is connected to the wrinkle portion through the second communication member, The water outlet of the second communication member is disposed toward the lower part of the pleated part.

In the preferred technical solution of the above-mentioned drum washing machine, the second communication member includes a communication pipeline and a spray structure, two ends of the communication pipeline are respectively connected with the pump member and the spray structure, the spray structure extends into the pleated portion, and the water outlet of the spray structure faces The lower part of the pleated part is provided.

In the preferred technical solution of the above-mentioned drum washing machine, the second communication member includes a first communication line, a second communication line, a first spray structure and a second spray structure, and both ends of the first communication line are respectively connected with the pump member and the pump member and the second spray structure. The first injection structure is in communication, and the two ends of the second communication pipeline are respectively connected with the pump member and the second injection structure. The water outlets of the jetting structure are all arranged towards the lower part of the pleated part.

In the preferred technical solution of the above-mentioned drum washing machine, the water outlet of the first spray structure and the water outlet of the second spray structure are respectively arranged on both sides of the lower part of the pleated part.

In the preferred technical solution of the above-mentioned drum washing machine, the cleaning assembly includes a plurality of cleaning mechanisms, the water inlet of the cleaning mechanism is connected to the drainage assembly, and the drainage port of the cleaning mechanism is connected to the pleated portion and disposed toward the lower portion of the pleated portion.

In the preferred technical solution of the above-mentioned drum washing machine, the cleaning mechanism includes a pump member, a first communication member and a second communication member, the pump member is connected to the drainage assembly through the first communication member, and the pump member is connected to the folded portion through the second communication member, The water outlet of the second communication member is disposed toward the lower part of the pleated part.

In the preferred technical solution of the above-mentioned drum washing machine, the second communication member includes a communication pipeline and a spray structure, two ends of the communication pipeline are respectively connected with the pump member and the spray structure, the spray structure extends into the pleated portion, and the water outlet of the spray structure faces The lower part of the pleated part is provided.

In the preferred technical solution of the above-mentioned drum washing machine, the drainage assembly includes a connecting pipe and a drainage pump, the drainage pump is connected to the drum through the connecting pipe, and the water inlet of the cleaning assembly is communicated with the connecting pipe.

In the preferred technical solution of the above-mentioned drum washing machine, the connection part between the water inlet of the cleaning component and the connecting pipe is arranged on the upstream side of the drain pump.

In another aspect, the present invention also provides a control method for a drum washing machine, the drum washing machine includes a drum, a window pad, a drainage assembly and a cleaning assembly, the drum includes an outer tub and an inner tub rotatably arranged in the outer tub, the window pad and the drainage component are respectively connected with the outer cylinder, the window pad includes a folded part, the water inlet of the cleaning component is connected with the drainage component, the drainage opening of the cleaning component is connected with the folded part and is arranged towards the lower part of the folded part, the control method includes: in the drum washing machine During or after washing and/or rinsing, the cleaning assembly is run; a portion of the water in the drain assembly is circulated to the pleats and the lower portion of the pleats is rinsed.

In a preferred technical solution of the above control method, the step of "running the cleaning component" specifically includes: making the cleaning component run continuously.

In a preferred technical solution of the above control method, the step of "running the cleaning component" specifically includes: intermittently operating the cleaning component.

In a preferred technical solution of the above control method, the control method further includes: when the draining of the drum washing machine is completed, closing the cleaning assembly.

In a preferred technical solution of the above control method, at the same time as or after the step of "closing the cleaning assembly", the control method further includes: closing the drainage assembly.

Those skilled in the art can understand that, in the preferred technical solution of the present invention, the water in the drum can be discharged through the drainage assembly, and a part of the water in the drainage assembly can be diverted and circulated to the folds of the window mat through the cleaning assembly. the lower area, and rinse the lower area, so that the lower area will not accumulate dirt particles, and thus will not form stubborn dirt, the user does not need to repeatedly clean the folds of the window mat, and the folds will not be localized. Sticky and affect the shock absorption and sealing effect of the window gasket, improving the user experience. In addition, due to the secondary utilization of the drainage of the drum, additional water can not be consumed on the basis of cleaning the wrinkled part of the window mat, which is conducive to the rational application of water resources and will not cause waste of water resources. Conducive to environmental protection.

Scheme 1: A drum washing machine, characterized in that the drum washing machine includes a drum, a window pad, a drainage assembly and a cleaning assembly, the drum includes an outer cylinder and an inner cylinder rotatably arranged in the outer cylinder, and the window pad and the drainage assembly are respectively connected with the outer cylinder, the window pad includes a corrugated part, the water inlet of the cleaning component is connected with the drainage component, and the drainage port of the cleaning component is connected with the corrugated part and faces toward the corrugated part. The lower part of the corrugated part is provided.

Solution 2: The front-loading washing machine according to solution 1, wherein the cleaning assembly includes a pump member, a first communication member and a second communication member, and the pump member communicates with the drainage assembly through the first communication member connected, the pump member is connected to the corrugated portion through the second communication piece, and the water outlet of the second communication piece is disposed toward the lower portion of the corrugated portion.

Solution 3: The front-loading washing machine according to solution 2, wherein the second communication member includes a communication pipeline and a spray structure, and both ends of the communication pipeline are communicated with the pump member and the spray structure, respectively. , the spray structure extends into the pleated portion, and the water outlet of the spray structure is disposed toward the lower portion of the pleated portion.

Option 4: The front-loading washing machine according to Option 2, wherein the second communication member includes a communication pipeline and a spray structure, and both ends of the communication pipeline are respectively communicated with the pump member and the spray structure , the spray structure extends into the pleated portion, and the water outlet of the spray structure is disposed toward the lower portion of the pleated portion.

Aspect 5: The front-loading washing machine according to Aspect 2, wherein the water outlet of the first spray structure and the water outlet of the second spray structure are respectively provided on both sides of the lower portion of the pleated portion.

Option 6: The front-loading washing machine according to Option 1, wherein the cleaning assembly includes a plurality of cleaning mechanisms, the water inlet of the cleaning mechanism is connected to the drainage assembly, and the drainage port of the cleaning mechanism is connected to the The pleated parts are connected and disposed toward the lower part of the pleated parts.

Solution 7: The front-loading washing machine according to solution 6, wherein the cleaning mechanism includes a pump member, a first communication member and a second communication member, and the pump member is connected to the drain assembly through the first communication member connected, the pump member is connected to the corrugated portion through the second communication piece, and the water outlet of the second communication piece is disposed toward the lower portion of the corrugated portion.

Option 8: The front-loading washing machine according to Option 7, wherein the second communication member includes a communication pipeline and a spray structure, and both ends of the communication pipeline are respectively communicated with the pump member and the spray structure , the spray structure extends into the pleated portion, and the water outlet of the spray structure is disposed toward the lower portion of the pleated portion.

Solution 9: The drum washing machine according to any one of solutions 1 to 8, wherein the drain assembly includes a connection pipe and a drain pump, the drain pump is connected to the drum through the connection pipe, and the drain pump is connected to the drum through the connection pipe. The water inlet of the cleaning assembly is communicated with the connecting pipe.

Aspect 10: The front-loading washing machine according to Aspect 9, characterized in that the connection part between the water inlet of the cleaning assembly and the connection pipe is arranged on the upstream side of the drain pump.

Solution 11: A control method for a drum washing machine, characterized in that the drum washing machine includes a drum, a window pad, a drainage assembly and a cleaning assembly, and the drum includes an outer tub and an inner tub rotatably arranged in the outer tub , the window pad and the drainage assembly are respectively connected with the outer cylinder, the window pad includes a wrinkled part, the water inlet of the cleaning assembly is connected to the drainage assembly, and the drainage outlet of the cleaning assembly is connected to the The corrugated portion is connected and disposed toward the lower portion of the corrugated portion, and the control method includes:

operating the cleaning assembly during or after the washing and/or rinsing of the front-loading washing machine;

A portion of the water in the drainage assembly is circulated to the pleated portion and the lower portion of the pleated portion is rinsed.

Option 12: The control method according to Option 11, wherein the step of "running the cleaning component" specifically includes:

Keep the cleaning assembly running.

Option 13: The control method according to Option 11, wherein the step of "running the cleaning component" specifically includes:

The cleaning assembly is operated intermittently.

Scheme 14: The control method according to Scheme 11, wherein the control method further comprises:

When the draining of the front-loading washing machine is finished, the cleaning assembly is turned off.

Option 15: The control method according to Option 14, characterized in that, at the same time as or after the step of "closing the cleaning assembly", the control method further comprises:

Close the drain assembly.

Description of drawings

FIG. 1 is a schematic structural diagram of a drum washing machine of the present invention.

Fig. 2 is a schematic diagram of the connection between a cleaning assembly of the present invention and a window pad.

FIG. 3 is a schematic diagram of the connection between another cleaning assembly of the present invention and the window pad.

4 is a schematic structural diagram of another drum washing machine of the present invention.

FIG. 5 is a schematic structural diagram of the injection structure of the present invention.

FIG. 6 is a schematic structural diagram of another drum washing machine of the present invention.

FIG. 7 is a schematic control flow diagram of Embodiment 6 of the drum washing machine of the present invention.

FIG. 8 is a schematic control flow diagram of Embodiment 7 of the drum washing machine of the present invention.

FIG. 9 is a schematic control flow diagram of Embodiment 8 of the drum washing machine of the present invention.

Reference numerals: 1, drum; 2, window pad; 3, cleaning assembly; 4, drainage assembly; 31, pump member; 32, first communication part; 33, second communication part; 34, spray structure; area; 331, the first connection pipeline; 332, the second communication pipeline; 333, the first spray structure; 334, the second spray structure; 341, the water spray port; 342, the first conveying part; 343, the second conveying Department; 41, drain pump; 42, connecting pipe; 43, drain pipe; 44, drain valve.

Detailed ways

Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principle of the present invention, and are not intended to limit the protection scope of the present invention. Those skilled in the art can adjust it as needed to adapt to specific applications.

It should be noted that, in the description of the present invention, the terms "upper", "lower", "left", "right", "vertical", "inside", etc. indicate the direction or the positional relationship of the terms based on the drawings. The direction or positional relationship shown is only for the convenience of description, rather than indicating or implying that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed to indicate or imply relative importance.

In addition, it should be noted that, in the description of the present invention, unless otherwise expressly specified and limited, the terms "arrangement" and "connection" should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection, Or integrally connected; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal communication between the two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

Based on the problem that stubborn dirt is easily formed in the lower area of the wrinkled portion of the window pad of the existing drum washing machine and is inconvenient to clean as pointed out in the background art, the present invention provides a drum washing machine and a control method thereof, aiming at utilizing drum drainage to clean the window. The lower area of the wrinkled part of the pad is cleaned to avoid the formation of stubborn dirt, so that the user does not need to clean it repeatedly, which improves the user experience and is environmentally friendly.

Specifically, referring to FIG. 1 , the drum washing machine of the present invention includes a drum 1 , a window pad 2 , a cleaning assembly 3 and a drainage assembly 4 . The drum 1 includes an outer cylinder and an inner cylinder rotatably arranged in the outer cylinder. One end of the window pad 2 is connected to the outer cylinder, and the other end is connected to the door opening (not shown in the figure) of the front panel of the drum washing machine. The window pad 2 Including a folded part for buffering and sealing, the drainage assembly 4 is connected with the outer cylinder, the cleaning assembly 3 includes a water inlet and a drainage outlet, the water inlet is connected with the drainage assembly 4, and the drainage outlet is connected with the folded part of the window pad 2 and faces the folded part lower settings. The washing water in the outer tub can be discharged through the drainage assembly 4, and the cleaning assembly 3 can make a part of the washing water in the drainage assembly 4 enter through the water inlet and discharge through the drainage outlet, thereby cleaning the lower part of the wrinkled part.

The cleaning assembly 3 of the present invention has various embodiments, and the cleaning assembly 3 will be described below with reference to the accompanying drawings and through specific embodiments.

Example 1

Referring to FIG. 1 , the cleaning assembly 3 includes a pump member 31 , a first communication member 32 and a second communication member 33 , the pump member 31 is connected to the drain assembly 4 through the first communication member 32 , and the pump member 31 is connected to the window through the second communication member 33 . The corrugated parts of the pad 2 are connected, and the water outlet of the second communication member 33 is disposed toward the lower part of the corrugated part. The pump member 31 makes the wash water pass through the second communication member 33 under a certain pressure and discharge, thereby cleaning the lower portion of the pleated portion.

Embodiment 2

1 and 2, the cleaning assembly 3 includes a pump member 31, a first communication member 32 and a second communication member 33. The pump member 31 is connected to the drainage assembly 4 through the first communication member 32, and the pump member 31 is connected through the second communication member. 33 is connected with the folded portion of the window pad 2, the drain port of the second communication member 33 is arranged toward the lower part of the folded portion, the second communication member 33 includes a communication pipeline and a spray structure 34, and the two ends of the communication pipeline are respectively connected with the pump member 31. Connected to the spray structure 34, the spray structure 34 extends into the inside of the pleated part, and the water outlet of the spray structure 34 is arranged toward the lower part of the pleated part, and the scouring effect on the lower part of the pleated part can be further enhanced by the spray structure 34.

Embodiment 3

1 and 3, the cleaning assembly 3 includes a pump member 31, a first communication member 32 and a second communication member 33. The pump member 31 is connected to the drainage assembly 4 through the first communication member 32, and the pump member 31 is connected through the second communication member. 33 is connected to the wrinkled part of the window pad 2, the drain port of the second communication member 33 is arranged towards the lower part of the wrinkled part, and the second communication member 33 includes a first communication pipeline 331, a second communication pipeline 332, and a first spray structure 333 and the second jet structure 334 . Two ends of the first connecting pipe 331 are respectively connected to the pump structure 31 and the first spray structure 333 , and two ends of the second connecting pipe 332 are respectively connected to the pump structure 31 and the second spray structure 334 . Both the first spray structure 333 and the second spray structure 334 protrude into the pleated portion, and the water outlets of the first spray structure 333 and the second spray structure 334 are both disposed toward the lower portion of the pleated portion. The window pad 2 is in the shape of a ring, and its arc region at the lowest point in the vertical direction is the lower region 301 of the wrinkled portion of the window pad 2 . The left and right sides or both are arranged on the left or right side of the lower region 301 . Therefore, the water outlet of the first spray structure 333 and the water outlet of the second spray structure 334 are located on two sides or the same side of the lower area 301 respectively. When the first spray structure 333 and the second spray structure 334 are arranged on the same side, the flow rate and flow of the washing water can be increased, thereby enhancing the scouring effect on the lower area 301, and effectively improving the cleaning ability. When the spray structures 334 are arranged on different sides, the left and right sides of the lower area 301 can be washed by the washing water at the same time, even if the lower area 301 is washed in both directions, it has a better cleaning effect.

Embodiment 4

Referring to FIGS. 1 and 4 , the cleaning assembly 3 includes a plurality of cleaning mechanisms for cleaning the folds of the window pad 2 , the cleaning mechanism includes a pump member 31 , a first communication member 32 and a second communication member 33 , and the pump member 31 passes through The first communicating piece 32 is connected with the drainage assembly 4, the pump member 31 is connected with the corrugated part of the window pad 2 through the second communicating piece 33, and the water outlet of the second communicating piece 33 is disposed toward the lower part of the corrugated part. The pump member 31 makes the washing water pass through the second communication member 33 under a certain pressure and is discharged, so that the lower portion of the pleated portion can be washed and cleaned. In the present invention, the number of cleaning mechanisms can be adjusted arbitrarily, for example, the number of cleaning mechanisms is two (this is the structure shown in FIG. 4 ). Of course, the number of cleaning mechanisms can also be three, four, etc. , those skilled in the art can flexibly set the number of cleaning mechanisms according to the specific structure of the drum washing machine in practical applications. This adjustment and change to the number of cleaning mechanisms does not constitute a limitation to the present invention, and should be limited to the present invention. within the scope of protection of the invention.

Embodiment 5

Referring to FIGS. 1 , 2 and 4 , the cleaning assembly 3 includes a plurality of cleaning mechanisms for cleaning the folds of the window pad 2 , and the cleaning mechanism includes a pump member 31 , a first communication member 32 and a second communication member 33 . The pump member 31 is connected with the drainage assembly 4 through the first communication piece 32 , and is connected with the corrugated portion of the window pad 2 through the second communication piece 33 . The water outlet of the second communication member 33 is provided toward the lower part of the corrugated portion. The second communication member 33 includes a communication pipeline and a spray structure 34. Both ends of the communication pipeline are connected to the pump member 31 and the spray structure 34 respectively. The spray structure 34 extends into the inside of the pleated portion, and the water outlet of the spray structure 34 faces toward The lower part of the pleated part is provided. The scouring effect on the lower part of the corrugated structure can be further improved by the spray structure 34 .

Referring to FIGS. 1 and 5, those skilled in the art can also understand that the above-mentioned cleaning assembly 3 is that the pump member 31 is a pump for conveying washing water, which can be a centrifugal pump, a positive displacement pump and a power pump, preferably For a circulating pump, the first communication member 32 and the second communication member 33 are used to transmit washing water, which can be flexible hoses, elbows or joints, etc., preferably a hose, and the second communication member 33 can be individually extended into the pleats. In the inner part, the lower part of the pleated part is directly cleaned by the second communicating piece 33. At this time, the drain port of the second communicating piece 33 can be set to be flat, thereby improving the cleaning effect of the pleated part. The second communication member 33 can also be connected with the spray structure 34, and the washing water is sprayed out through the spray structure 34, so that the washing water has a scouring effect on the lower part of the pleated part, so as to improve the cleaning effect. The spray structure 34 may be a spray head disposed on the second communication member 33 or a spray port formed on the second communication member 33. In practical applications, the spray structure 34 is preferably a spray head. Continuing to refer to FIG. The first conveying part 342 and the second conveying part 343, the second conveying part 343 is provided with a water spout 341, the first conveying part 342 is connected to the second communicating piece 33, and the water discharged from the second communicating piece 33 is sequentially After passing through the first conveying part 342 and the second conveying part 343 and spraying from the water spout 341 , the lower part of the wrinkled part of the window mat 2 is cleaned. In addition, the water spout 341 is preferably arranged in an elongated shape, so that the water sprayed from the water spout 341 can be sprayed out in a wide range and quickly, thereby improving the cleaning effect on the lower part of the wrinkled portion of the window pad 2 .

In the present invention, the drainage assembly 4 is used to lead and discharge the washing water in the outer tub. The drum washing machine of the present invention may be an upper drainage drum washing machine or a lower drainage drum washing machine. Specifically, when the drum washing machine is an upper drainage drum washing machine, the drainage assembly 4 includes a drainage pump 41, a connecting pipe 42 and a drainage pipe 43 (this is the structure shown in FIG. 1). Two ends of the connecting pipe 42 are respectively connected to the drain pump 41 and the outer cylinder, and the first communicating member 32 is connected to the connecting pipe 42 . When washing or rinsing is completed, the washing water in the outer tub can be drained by the drain pump 41 , and when the lower part of the pleated part of the window pad 2 needs to be cleaned, the washing water in the connecting pipe 42 can be passed through the connecting pipe 42 in turn by the action of the pump member 31 . The first communication member 32 , the pump member 31 and the second communication member 33 are then sprayed out, thereby circulating the wash water and cleaning the lower portion of the pleated portion of the window pad 2 . When the front-loading washing machine is a lower-draining front-loading washing machine, the draining components are the connecting pipe 42, the draining pipe 43 and the draining valve 44 (the structure shown in FIG. 6 is exactly this structure). Two ends of the connecting pipe 42 are respectively connected to the drain valve 44 and the outer cylinder, and the first communication member 32 is connected to the connecting pipe 42 . When washing or rinsing is finished, the washing water in the outer tub can be drained through the drain valve 44 , and when it is necessary to clean the lower part of the wrinkled portion of the window pad 2 , the washing water in the connecting pipe 42 can be passed through in sequence by the action of the pump member 31 . The first communication member 32 , the pump member 31 and the second communication member 33 are then sprayed out, thereby circulating the wash water and cleaning the lower portion of the pleated portion of the window pad 2 .

For the above-mentioned drainage assembly 4, the connection part between the connecting pipe 42 and the first communication member 32 is located on the upstream side of the drainage pump 41 or the drainage valve 44. In practical applications, the first communication member 32 and the first communication member 32 can be vertically connected to each other. The connection part of the connection pipe 42 is higher than the position of the drain pump 41 or the drain valve 44 , so that the washing water in the cleaning assembly 3 can naturally flow to the drain pump 41 after the lower part of the wrinkled part of the window mat 2 is cleaned. Or in the drain valve 44, under the action of the drain pump 41 or the drain valve 44, the outer cylinder is discharged through the drain pipe 43, so as to avoid the accumulation of washing water in the cleaning component 3, thereby preventing the accumulated washing water from breeding bacteria, odor or The formation of stubborn dirt blocks the cleaning component 3 and the drain component 4.

Those skilled in the art can also understand that the on-off of the connecting pipe 42 and the drain pipe 43 can be controlled by controlling the opening and closing of the drain pump 41 or the drain valve 44. Specifically, when the drain pump 41 or the drain valve 44 is opened, the outer cylinder The washing water inside can be drained out of the outer tub through the connecting pipe 42 and the drain pipe 43 in sequence, and the drain pump 41 or the drain valve 44 can be opened at the end of washing or rinsing of the drum washing machine to discharge the washing water in the outer tub and the cleaning assembly 3 . When the drain pump 41 or the drain valve 44 is closed, the washing water in the outer tub can only flow into the connecting pipe 42 and cannot be discharged from the outer tub through the drain pipe 43 . Since the connecting pipe 42 is communicated with the bottom of the outer tub, and the connecting part of the connecting pipe 42 and the outer tub is at a lower position in the vertical direction, it is possible to make the outer tub lower when the washing water level in the outer tub is low. The washing water in the tub can still enter the connecting pipe 42 . On the one hand, the cleaning component 3 can be extracted, and on the other hand, after washing or rinsing is completed, the washing water in the outer tub can be fully discharged to avoid residues.

Those skilled in the art can also understand that, in the present invention, by connecting the drain assembly 4 and the cleaning assembly 3 with the outer tub, the washing water can circulate in the outer tub and the cleaning assembly 3, and the washing water can be directly flushed through the cleaning assembly 3 The lower area 301 of the wrinkled part drives the washing water retained in the lower area 301 to flow, continuously cleans the lower area 301, the cleaning effect is good, the formation of stubborn dirt can be avoided, and the wrinkles of the window mat in the prior art are effectively solved. It is easy to form stubborn dirt and inconvenient cleaning in the interior.

On the other hand, the present invention also provides a control method for a drum washing machine. The control method is realized based on the structure of the drum washing machine. It will not be repeated here. The control method of the present invention includes: washing in the drum washing machine and During/or rinsing or after washing and/or rinsing, run the cleaning assembly; circulate a portion of the water in the drain assembly to the pleats and rinse the lower portion of the pleats. It should be noted that, when washing clothes in a drum washing machine, it is necessary to perform several times of drainage, specifically drainage after washing, drainage after rinsing, drainage after dehydration, etc. For the cleaning effect, the amount of water in the outer tub should be large, so that there is enough water to clean the folds of the window mat, so during the washing and/or rinsing process or after the washing and/or rinsing process (ie, during the drainage process) It is best to wash the folds of the window mat. In a possible situation, the step of "operating the cleaning assembly" specifically includes: making the cleaning assembly run continuously, that is, the cleaning assembly continues to run after being started without interruption, so as to maintain the cleaning of the folds of the window pad. In another possible situation, the step of "operating the cleaning assembly" specifically includes: operating the cleaning assembly intermittently, that is, the cleaning assembly is turned on for a period of time and stopped for a period of time when cleaning the wrinkled portion of the window pad, and so on alternately. . Those skilled in the art can flexibly set the specific operation mode of the cleaning assembly in practical applications, as long as the lower region of the pleated portion of the window pad can be cleaned.

Preferably, the control method of the present invention further includes: when the draining of the drum washing machine is completed, closing the cleaning assembly. That is, at the end of washing and/or rinsing, the cleaning assembly is turned off, thereby stopping the cleaning of the wrinkled portion of the window mat. Further, at the same time as or after the step of "closing the cleaning assembly", the control method of the present invention further comprises: closing the drainage assembly. That is, the water, lint, dirt particles and the like can be smoothly drained through the drain assembly at the same time or after the cleaning assembly stops cleaning the wrinkled portion of the window pad.

The following describes the cleaning method of the cleaning component for the lower portion of the wrinkled portion of the window pad in the invention with reference to the accompanying drawings, taking the top-draining drum washing machine as an example of the present invention, and combining with specific embodiments.

Embodiment 6:

Referring to Fig. 7, during the laundry washing or rinsing process, clean the lower area of the pleated part of the window pad, and turn on the circulation pump when the front-loading washing machine is in the washing or rinsing state (the drain pump is in the closed state at this time), so that the circulation pump continues to work . After washing or rinsing, the front-loading washing machine starts to drain, and the front-loading washing machine discharges water by turning on the drain pump. After draining, turn off the circulation pump and then turn off the drain pump.

Embodiment 7:

Referring to FIG. 8, during the washing or rinsing process of the front-loading washing machine, the lower area of the wrinkled portion of the window pad is cleaned, and the circulating pump is turned on when the front-loading washing machine is in the washing or rinsing state (the drain pump is in the off state at this time), so that the circulating pump is turned on. Work intermittently. After washing or rinsing, the front-loading washing machine starts to drain, and drains the water by turning on the drain pump. After draining, turn off the circulation pump and then turn off the drain pump.

Embodiment 8:

Referring to FIG. 9 , the lower area of the pleated portion of the window pad is cleaned within a period of time (for example, time T) before the washing or rinsing of the laundry by the front-loading washing machine, and the circulation pump is turned on for a period of time before the washing or rinsing of the laundry by the front-loading washing machine is completed. (The drain pump is turned off at this time). Draining starts after washing or rinsing, and drains the water by turning on the drain pump. After draining, turn off the circulation pump and then turn off the drain pump. Of course, it is also possible to clean the lower area of the pleated portion of the window mat within the time T after the washing or rinsing is finished.

It can be understood by those skilled in the art that the embodiments of the present invention for cleaning the lower region of the wrinkled portion of the window pad are not limited to the above three, and the cleaning process for the window pad of the present invention can be performed when the washing machine washes or rinses the clothes as required. During the period of time before or after the washing or rinsing of the laundry by the washing machine, and, during the cleaning process, the circulating pump may run intermittently or continuously.

So far, the technical solutions of the present invention have been described with reference to the preferred embodiments shown in the accompanying drawings, however, those skilled in the art can easily understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims (10)

1. A drum washing machine, characterized in that the drum washing machine comprises a drum, a window pad, a drainage assembly and a cleaning assembly, the drum includes an outer cylinder and an inner cylinder rotatably arranged in the outer cylinder, the window pad and The drainage assemblies are respectively connected with the outer cylinder, the window pad includes a folded portion, the water inlet of the cleaning assembly is connected with the drainage assembly, and the water outlet of the cleaning assembly is connected with the folded portion and faces the folded portion. The lower part of the pleated part is arranged. 2 . The front-loading washing machine according to claim 1 , wherein the cleaning assembly comprises a pump member, a first communication member and a second communication member, and the pump member communicates with the drainage assembly through the first communication member. 3 . connected, the pump member is connected to the corrugated portion through the second communication piece, and the water outlet of the second communication piece is disposed toward the lower portion of the corrugated portion. 3 . The front-loading washing machine according to claim 2 , wherein the second communication member comprises a communication pipeline and a spray structure, and both ends of the communication pipeline are respectively communicated with the pump member and the spray structure. 4 . , the spray structure extends into the pleated portion, and the water outlet of the spray structure is disposed toward the lower portion of the pleated portion. 4. The front-loading washing machine according to claim 2, wherein the second communication member comprises a first communication line, a second communication line, a first spray structure and a second spray structure, and the first communication The two ends of the pipeline are respectively communicated with the pump member and the first injection structure, the two ends of the second communication pipeline are respectively communicated with the pump member and the second injection structure, and the first injection Both the structure and the second spray structure protrude into the pleated portion, and the water outlet of the first spray structure and the drain port of the second spray structure are both disposed toward the lower portion of the pleated portion. 5 . The front-loading washing machine according to claim 4 , wherein the drain port of the first spray structure and the drain port of the second spray structure are respectively disposed on both sides of the lower portion of the pleated portion. 6 . 6 . The front-loading washing machine according to claim 1 , wherein the cleaning assembly comprises a plurality of cleaning mechanisms, a water inlet of the cleaning mechanism is connected to the drainage assembly, and a water outlet of the cleaning mechanism is connected to the The pleated parts are connected and disposed toward the lower part of the pleated parts. 7 . The front-loading washing machine according to claim 6 , wherein the cleaning mechanism comprises a pump member, a first communication member and a second communication member, and the pump member is connected to the drainage assembly through the first communication member. 8 . connected, the pump member is connected to the corrugated portion through the second communication piece, and the water outlet of the second communication piece is disposed toward the lower portion of the corrugated portion. 8 . The front-loading washing machine according to claim 7 , wherein the second communication member comprises a communication pipeline and a spray structure, and two ends of the communication pipeline are respectively communicated with the pump member and the spray structure. 9 . , the spray structure extends into the pleated portion, and the water outlet of the spray structure is disposed toward the lower portion of the pleated portion. 9 . The front-loading washing machine according to claim 1 , wherein the drain assembly comprises a connection pipe and a drain pump, the drain pump is connected to the drum through the connection pipe, and the drain pump is connected to the drum. 10 . The water inlet of the cleaning assembly is communicated with the connecting pipe. 10 . The front-loading washing machine according to claim 9 , wherein the connection part between the water inlet of the cleaning assembly and the connecting pipe is arranged on the upstream side of the drainage pump. 11 .

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