A method for controlling water inlet of a multi-cylinder washing machine

Abstract

The application discloses a water inlet control method of a multi-drum washing machine. The washing machine has at least a first washing drum and a second washing drum. When the water inlet program is executed, it is determined whether the second washing drum is executing the dehydration program. If yes, the water inlet program of the first washing drum is adjusted. If no, the first washing drum executes the water inlet program, and the water inlet program is terminated after the washing water level reaches the set water level. When the water inlet program is executed, it is determined whether the other washing drum is executing the dehydration program, so as to avoid the influence of the vibration of the other washing drum rotating at a high speed during the execution of the dehydration program on the water inlet process of any washing drum. The significant technical progress of the washing drum water inlet level detection precision is effectively improved. Meanwhile, the water inlet control method is simple, reliable and remarkable in effect, and is suitable for popularization and use.

Description

TECHNICAL FIELD

[0001] The present invention belongs to the field of washing machines and a control method of a washing machine, which has multiple washing drums that wash clothes in different ways based on the amount and type of clothes, and relates to a control method of water feeding of the multiple-drum washing machine. BACKGROUND

[0002] A washing machine performs washing, rinsing and spin-drying operations in order to remove stains attached to clothes using the interaction of a detergent and water. A dryer, as another representative clothes treating apparatus, is a home appliance for drying wet clothes and the like. Recently, a home appliance having the combined functions of a washing machine and a dryer has been widely used.

[0003] As people's quality of life improves, health awareness is gradually increasing, and more and more people separate clothes for washing. If the existing washing machine is used to wash clothes multiple times, it is difficult to meet the requirements in washing time; if two or more washing machines are purchased to wash clothes at the same time, not only is there a great waste of energy and water resources, but also a large space is occupied, which is not suitable for home use. Therefore, a multiple-drum washing machine can meet the above needs and solve the problems of energy and water waste and space waste.

[0004] However, it brings the problem of the whole machine operation control, especially in the washing process, different clothes in different drums have different water absorption capacities, and under the condition of limited water feeding time, it is easy to appear that the theoretical water feeding amount is much less than the actual required water amount. Thus, during washing and heating, dry burning danger may occur; and the washing effect of clothes will be greatly reduced due to too little washing water. The present invention is to solve the problem of optimizing washing water feeding.

[0005] For example, the Chinese patent with application number CN2014107723177 proposes a logical control of water feeding of a double-drum washing machine, mainly explaining the logical sequence between the water feeding of the two drums of the double-drum washing machine, in order to avoid the occurrence of simultaneous water feeding of the two washing drums and improve the stability of the water feeding program.

[0006] The above-mentioned solution only prevents the simultaneous execution of the water feeding program of multiple drums, so as to prevent the water flow rate of any washing drum from being affected by the water feeding of another washing drum, and thus eliminates the problem of inaccurate water feeding amount of the washing drum.

[0007] However, when any washing drum of a multiple-drum washing machine executes the water feeding program, it will also be affected by the large amplitude vibration caused by the high-speed rotation of another washing drum, especially during the dehydration program, which will cause inaccurate water level detection in the washing drum and a large deviation between the water feeding amount and the actual required target setting water level.

[0008] In view of this, the present application is proposed. SUMMARY

[0009] The present application aims to provide a multi-cylinder washing machine water inlet control method, so that the multi-cylinder washing machine can achieve the purpose of precise water inlet, and effectively solve the problem of mutual interference between different washing cylinders.

[0010] The present application solves the above technical problems by adopting the following technical solutions:

[0011] A multi-cylinder washing machine water inlet control method, the washing machine has at least a first washing cylinder and a second washing cylinder, when the first washing cylinder executes the water inlet program, it needs to determine whether the second washing cylinder is executing the dehydration program; if yes, the water inlet program of the first washing cylinder is adjusted; if no, the first washing cylinder executes the water inlet program, and terminates the water inlet program when the washing water level reaches the set water level.

[0012] Further, the adjustment of the water inlet program of the first washing cylinder includes adjustment of the start node of the water inlet program of the first washing cylinder, and / or the water inlet amount of the water inlet program, and / or the process of the water inlet program.

[0013] Further, before the first washing cylinder starts to execute the water inlet program, it is determined whether the second washing cylinder is executing the dehydration program; if yes, the water inlet program of the first washing cylinder is suspended until the dehydration program of the second washing cylinder is completed, and then the execution is started again; if no, the first washing cylinder executes the water inlet program, and water is fed into the first washing cylinder until the washing water level reaches the set water level, and then the water inlet program is terminated.

[0014] Further, before the first washing cylinder starts to execute the water inlet program, it is determined whether the second washing cylinder is executing the dehydration program; if yes, the first washing cylinder executes the modified water inlet program, and terminates the modified water inlet program when the washing water level reaches the modified set water level; if no, the first washing cylinder executes the water inlet program, and water is fed into the first washing cylinder until the washing water level reaches the set water level, and then the water inlet program is terminated; the modified set water level is lower than the set water level.

[0015] Further, when the first washing cylinder executes the modified water inlet program, and / or after the termination of the execution of the modified water inlet program, it is detected whether the second washing cylinder has completed the dehydration program; if yes, the first washing cylinder executes the water inlet program again, and water is fed into the first washing cylinder until the washing water level reaches the set water level, and then the water inlet program is terminated.

[0016] Further, when the first washing drum is executing the modified water filling procedure, the first washing drum fills water in batches until the washing water level reaches the modified set water level; after each batch of water filling is completed, it is detected whether the second washing drum has completed the dehydration procedure; if yes, the first washing drum terminates the modified water filling procedure and starts the water filling procedure, fills water into the first washing drum, and terminates the water filling procedure after the washing water level reaches the set water level.

[0017] Further, the first washing drum has multiple water level positions with different water level heights, and the modified set water level is a water level position which is one position height lower than the set water level;

[0018] In the modified water filling procedure, if the washing water level in the first washing drum reaches the next water level position, the corresponding batch of water filling is completed.

[0019] Further, when the first washing drum is executing the water filling procedure, it is detected whether the second washing drum is about to start the dehydration procedure;

[0020] When the second washing drum is about to start the dehydration procedure, the water filling procedure of the first washing drum is terminated, the starting node of the water filling procedure of the first washing drum is adjusted, and / or the water filling amount of the water filling procedure is adjusted, and / or the process of the water filling procedure is adjusted.

[0021] Further, before the second washing drum executes the dehydration procedure, it is detected whether the first washing drum is executing the water filling procedure;

[0022] If yes, the second washing drum suspends starting the dehydration procedure until the first washing drum completes the water filling procedure and then starts the dehydration procedure.

[0023] Further, when the first washing drum is executing the water filling procedure, the vibration amount of the washing machine is detected;

[0024] It is detected whether the vibration amount of the washing machine exceeds the normal vibration value;

[0025] If yes, the starting node of the water filling procedure of the first washing drum is adjusted, and / or the water filling amount of the water filling procedure is adjusted, and / or the process of the water filling procedure is adjusted;

[0026] If no, the first washing drum executes the water filling procedure, and terminates the water filling procedure after the washing water level reaches the set water level.

[0027] Further, the water filling process of the multi-drum washing machine is as follows:

[0028] Step S1, the first washing drum executes the water filling procedure;

[0029] Step S2, it is detected whether the second drum is executing the dehydration procedure; if yes, step S3 is executed; if no, step S4 is executed;

[0030] Step S3, the first washing drum enters a modified water feeding procedure;

[0031] Step S31, water is fed into the first washing drum until the washing water level reaches a first water level;

[0032] Step S32, it is detected whether the second washing drum ends the spin-drying procedure; if not, step S33 is performed; if yes, step S4 is performed;

[0033] Step S33, water is fed into the first washing drum until the washing water level reaches a second water level;

[0034] Step S34, it is detected whether the second washing drum ends the spin-drying procedure; if not, step S35 is performed; if yes, step S4 is performed;

[0035] Step S35, water feeding into the first washing drum is stopped until the second washing drum ends the spin-drying procedure, and then step S4 is performed;

[0036] Step S4, water is fed into the first washing drum until the washing water level reaches a set water level.

[0037] The present application has the following significant technical progress after adopting the above technical solution:

[0038] 1. By judging whether the other washing drum is executing the spin-drying procedure when the washing drum executes the water feeding procedure, the influence of the vibration of the other washing drum rotating at a higher speed on the water feeding process of any washing drum is avoided, the problem that the water level detection of the water feeding end node of the washing drum is interfered by the other washing drum with excessive vibration is effectively solved, and the water level in the water feeding process of the washing drum can be accurately detected.

[0039] 2. In the washing procedure of the washing drum, the washing water level in the washing drum is monitored to feed water when the water amount or the water level is insufficient due to the water absorption of the laundry and / or the excessively low water feeding procedure.

[0040] 3. The present application is designed to be humanized and easy to implement, and the washing drum with a shorter remaining washing time is preferentially executed to feed water to shorten the waiting time of the user.

[0041] Meanwhile, the control method of the present application is simple and reliable, has a remarkable effect, and is suitable for popularization and use. BRIEF DESCRIPTION OF DRAWINGS

[0042] The present application will be described in detail below with reference to the accompanying drawings.

[0043] Figure 1 is a structural schematic diagram of a multi-drum washing machine of the present application;

[0044] Figure 2 is a water filling process flow chart of a multi-drum washing machine according to another embodiment of the present application;

[0045] Figure 3 is a water filling process flow chart of a multi-drum washing machine according to another embodiment of the present application;

[0046] Figure 4 is a water filling process flow chart of a multi-drum washing machine according to another embodiment of the present application. DETAILED DESCRIPTION

[0047] As shown in Figure 1 , a multi-drum washing machine is provided with at least a first washing drum 1 and a second washing drum 2, which can independently perform a laundry washing step. The first washing drum 1 and the second washing drum 2 can independently perform a washing program, a rinsing program and a dehydration program on the laundry in sequence, so as to achieve the purpose of washing the laundry. Preferably, the multi-drum washing machine can also be provided with a drying device, which can perform a drying program after the dehydration program to dry the laundry in the first washing drum 1 and / or the second washing drum 2. In the present application, the washing machine is taken as an example with two washing drums, i.e., the first washing drum 1 and the second washing drum 2, but the present application is not limited to only two washing drums, and there can be a third washing drum, a fourth washing drum, etc. However, in the actual execution process, any washing drum should satisfy the technical solution of the present application, i.e., the execution of the water filling program of any washing drum should not be affected by the dehydration program of other washing drums.

[0048] In the present application, the first washing drum 1 and the second washing drum 2 are connected to the same water inlet pipeline through a pipeline, and a control device for controlling the water flow is arranged on the pipeline. Thus, before the execution of the washing process, washing water can be injected into the first washing drum 1 and / or the second washing drum 2 through the water inlet pipeline. Of course, in the present application, the first washing drum 1 and the second washing drum 2 can also be connected to different water inlet pipelines through pipelines, respectively, and control devices are arranged on the pipelines and / or the water inlet pipelines, respectively, to achieve the effect of injecting washing water into the first washing drum 1 and / or the second washing drum 2.

[0049] In the present application, water level detection devices are arranged on the first washing drum 1 and the second washing drum 2, respectively, for detecting the water level height of the washing water in the first washing drum and the second washing drum, respectively, so as to determine whether the water filling in the first washing drum and the second washing drum reaches a set value. The water level detection device can be any structure in the prior art, for example, a water level sensor structure in which a liquid guide pipe is connected to the bottom of the washing drum and an air chamber arranged outside, and the air pressure in the air chamber is detected to obtain the water level height. The water level height set value is the water level height value of the washing water in the washing drum, which is automatically obtained by the washing machine according to the selected program or manually selected by the user.

[0050] As shown in Figures 2 to 4As shown in the embodiment of the present invention, a water inlet control method for a multi-drum washing machine is introduced. Specifically, when the first washing drum is executing the water inlet program, it is necessary to determine whether the second washing drum is executing the spin-dry program. This is to avoid the situation where the water level in the washing drum is affected by the large amount of vibration generated by the high-speed rotation of the other washing drum while either washing drum is executing the water inlet program, which would cause the water level in the washing drum to be affected by the large vibration and thus result in inaccurate detection.

[0051] In this embodiment of the invention, when the first washing drum is performing the water intake program, it needs to determine whether the second washing drum is performing the spin-drying program; if so, the water intake program of the first washing drum is adjusted; if not, the first washing drum performs the water intake program, and water is introduced into the first washing drum until the washing water level reaches the set level, and then the water intake program is terminated.

[0052] By means of the above method, when the first washing drum is affected by the spin-drying program of the other washing drum while performing the water intake program, the water intake program is adjusted accordingly to achieve the target water level of the water intake program, thereby ensuring that the water intake volume does not deviate significantly.

[0053] In this embodiment of the invention, adjusting the water inlet program of the first washing drum includes adjusting the start point of the water inlet program of the first washing drum, and / or the water inlet volume of the water inlet program, and / or the process of the water inlet program. The water level detection of the first washing drum during the water inlet program is not affected by excessive vibration of the other washing drum.

[0054] In this embodiment of the invention, the water intake process can be the main water intake process before the washing machine performs washing, rinsing, etc.; or it can be the water replenishment process during the washing machine's washing, rinsing, etc.

[0055] Example 1

[0056] like Figure 2 As shown in the figure, this embodiment introduces a water inlet control method for a multi-drum washing machine. The control method is as follows: when the first washing drum is executing the water inlet program, it is necessary to determine whether the second washing drum is executing the spin-drying program; if so, the start node of the water inlet program of the first washing drum is adjusted; if not, the first washing drum executes the water inlet program, water is introduced into the first washing drum, and the water inlet program is terminated when the washing water level reaches the set water level.

[0057] In this embodiment, before the first washing drum starts executing the water intake program, it is determined whether the second washing drum is executing the spin-drying program; if so, the water intake program of the first washing drum is paused until the spin-drying program of the second washing drum is completed before it starts again; if not, the first washing drum executes the water intake program until the washing water level reaches the set level and then the water intake program is terminated.

[0058] like Figure 2As shown in the embodiment, the water inlet control method of the multi-cylinder washing machine has the following specific process:

[0059] Step S1, the first washing cylinder executes the water inlet program;

[0060] Step S2, it is judged whether the second cylinder is executing the dehydration program; if yes, step S3 is executed; if no, step S4 is executed;

[0061] Step S3, the water inlet program is paused to start until the second washing cylinder executes the dehydration program to end, and then step S4 is executed;

[0062] Step S4, the first washing cylinder starts to execute the water inlet program, water is fed into the first washing cylinder, and the washing water level height reaches the set water level.

[0063] Embodiment two

[0064] As shown in the embodiment, the water inlet control method of the multi-cylinder washing machine has the following specific process: Figure 3 In the embodiment, it is judged whether the second washing cylinder is executing the dehydration program before the first washing cylinder starts to execute the water inlet program; if yes, the first washing cylinder executes the modified water inlet program, and the washing water level reaches the modified set water level to terminate the modified water inlet program; if no, the first washing cylinder executes the water inlet program, and the washing water level reaches the set water level to terminate the water inlet program; the modified set water level is lower than the set water level.

[0065] In the embodiment, it is detected whether the second washing cylinder completes the dehydration program when the first washing cylinder executes the modified water inlet program and / or after the termination of the modified water inlet program; if yes, the first washing cylinder executes the water inlet program again, water is fed into the first washing cylinder, and the washing water level reaches the set water level to terminate the water inlet program.

[0066] As shown in the embodiment, the water inlet control method of the multi-cylinder washing machine has the following specific process:

[0067] Figure 3

[0068] Step S1, the first washing cylinder executes the water inlet program;

[0069] Step S2, it is judged whether the second cylinder is executing the dehydration program; if yes, step S3 is executed; if no, step S4 is executed;

[0070] Step S3, the first washing cylinder enters the modified water inlet program; ​​

[0071] Step S31: Add water to the first washing drum until the washing water level reaches the set correction level;

[0072] Step S32: Continue until the second washing drum finishes its spin-drying process, then proceed to step S4.

[0073] Step S4: Add water to the first washing drum until the water level reaches the set level.

[0074] Example 3

[0075] like Figure 4 As shown in the figure, this embodiment introduces a water inlet control method for a multi-drum washing machine. The control method is as follows: when the first washing drum is executing the water inlet program, it is necessary to determine whether the second washing drum is executing the spin-drying program; if so, the water inlet process of the first washing drum is adjusted; if not, the first washing drum executes the water inlet program, water is introduced into the first washing drum, and the water inlet program is terminated when the washing water level reaches the set water level.

[0076] In this embodiment, before the first washing drum starts executing the water intake program, it is determined whether the second washing drum is executing the spin-drying program; if so, the first washing drum executes the correction water intake program, adding water into the first washing drum until the washing water level reaches the correction set water level, and then the correction water intake program is terminated; if not, the first washing drum executes the water intake program, adding water into the first washing drum until the washing water level reaches the set water level, and then the water intake program is terminated; the correction set water level is lower than the set water level.

[0077] In this embodiment, when the first washing drum performs the correction water intake program, the first washing drum is filled with water in batches until the washing water level reaches the correction set level. After each batch of water intake is completed, the second washing drum is checked to see if the spin-drying program has been completed. If so, the first washing drum stops performing the correction water intake program and starts performing the water intake program, filling the first washing drum with water until the washing water level reaches the set level and then the water intake program is terminated.

[0078] In this embodiment, the first washing drum has multiple levels of washing water at different heights. The corrected set water level is the washing water level one level lower than the set water level. In the corrected water intake process, if the washing water level in the first washing drum reaches the next level, the corresponding batch of water intake is completed.

[0079] like Figure 4 As shown in the figure, the water inlet control method for a multi-drum washing machine in this embodiment is as follows:

[0080] Step S1: The first washing drum executes the water intake program;

[0081] Step S2, judging whether the second drum is executing the dehydration program; if yes, executing step S3; if no, executing step S4;

[0082] Step S3, the first washing drum enters the modified water filling program;

[0083] Step S31, water is filled into the first washing drum until the washing water level reaches the first water level;

[0084] Step S32, detecting whether the second washing drum executes the dehydration program; if no, executing step S33; if yes, executing step S4;

[0085] Step S33, water is filled into the first washing drum until the washing water level reaches the second water level;

[0086] Step S34, detecting whether the second washing drum executes the dehydration program; if no, executing step S35; if yes, executing step S4;

[0087] Step S35, stopping water filling into the first washing drum until the second washing drum executes the dehydration program, and then executing step S4;

[0088] Step S4, water is filled into the first washing drum until the washing water level reaches the set water level.

[0089] Embodiment Four

[0090] The embodiment is based on the above-mentioned embodiments one to three and has the following technical features:

[0091] In the embodiment, when the first washing drum executes the water filling program, it is detected whether the second washing drum is about to execute the dehydration program; when the second washing drum is about to execute the dehydration program, the water filling program of the first washing drum is stopped, the starting node of the water filling program of the first washing drum is adjusted, and / or the water filling amount of the water filling program is adjusted, and / or the process of the water filling program is adjusted.

[0092] In the embodiment, before the second washing drum executes the dehydration program, it is judged whether the first washing drum is executing the water filling program; if yes, the second washing drum suspends the dehydration program until the first washing drum completes the water filling program.

[0093] Therefore, the problem that the second washing drum starts to execute the dehydration program during the process that the first washing drum executes the water filling program, thereby affecting the detection of the water level in the first washing drum, is avoided, and the inaccuracy of the target setting of the water filling level of the washing machine is eliminated, and the accuracy of the water filling detection is improved.

[0094] Embodiment Five

[0095] The embodiment is based on the above embodiment and has the following technical features:

[0096] In the embodiment, the vibration amount of the washing machine is detected when the first washing drum performs the water feeding program.

[0097] It is judged whether the detected vibration amount of the washing machine exceeds the normal vibration value.

[0098] If yes, the start node of the water feeding program, and / or the water feeding amount of the water feeding program, and / or the process of the water feeding program of the first washing drum are adjusted.

[0099] If no, the first washing drum performs the water feeding program, and the water feeding program is terminated after the water level reaches the set water level.

[0100] Therefore, when another drum of the washing machine is performing the dehydration or other large vibration program, the water feeding program can be controlled to be paused or corrected, so that the water feeding amount can reach the target set value, and the interference between different drums of the multi-drum washing machine can be avoided.

[0101] In the embodiment, in order to detect the vibration amount of the washing machine, a position sensor, a proximity sensor or the like can be installed on the washing machine.

[0102] The above is only the preferred embodiment of the present application, and does not limit the present application in any form. Although the present application has been disclosed as the above preferred embodiment, it is not intended to limit the present application. Any skilled person in the art can make some changes or modifications to the above-mentioned technical content without departing from the technical solution of the present application, and any simple modification, equivalent change and modification of the above embodiment according to the technical essence of the present application still belong to the scope of the present application.

Claims

1. A water inlet control method for a multi-drum washing machine, the washing machine having at least a first washing drum and a second washing drum, characterized in that: When the first washing drum is executing the water inlet program, it needs to determine whether the second washing drum is executing the spin-drying program. If so, the water inlet program of the first washing drum is adjusted. If not, the first washing drum executes the water inlet program until the washing water level reaches the set level and then the water inlet program is terminated. Before the first washing drum starts the water intake program, it is determined whether the second washing drum is currently performing a spin-drying program. If so, the first washing drum performs a corrective water intake program until the washing water level reaches the corrective set level, at which point the corrective water intake program is terminated. If not, the first washing drum performs the water intake program, adding water to the first washing drum until the washing water level reaches the set level, at which point the water intake program is terminated. The corrective set level is lower than the set level. When the first washing drum is performing the correction water intake program, the first washing drum is filled with water in batches until the washing water level reaches the correction set level. After each batch of water intake is completed, it is determined whether the second washing drum has completed the spin-drying program. If so, the first washing drum stops performing the correction water intake program and starts performing the water intake program, filling the first washing drum with water until the washing water level reaches the set level and then stops the water intake program.

2. The water inlet control method for a multi-drum washing machine as described in claim 1, characterized in that: The adjustment of the water inlet program of the first washing drum includes adjusting the start point of the water inlet program of the first washing drum, and / or the water inlet volume of the water inlet program, and / or the process of the water inlet program.

3. The water inlet control method for a multi-drum washing machine as described in claim 2, characterized in that: Before the first washing drum starts the water intake program, it is determined whether the second washing drum is running the spin-drying program. If so, the water intake program of the first washing drum is paused until the spin-drying program of the second washing drum is completed. If not, the first washing drum starts the water intake program, adding water to the first washing drum until the water level reaches the set level, at which point the water intake program is terminated.

4. The water inlet control method for a multi-drum washing machine as described in claim 1, characterized in that: When the first washing drum is performing the corrected water intake program and / or after the corrected water intake program is terminated, it is detected whether the second washing drum has completed the spin-drying program; if so, the first washing drum performs the water intake program again, and water is introduced into the first washing drum until the washing water level reaches the set level, and then the water intake program is terminated.

5. The water inlet control method for a multi-drum washing machine as described in claim 1, characterized in that: The first washing drum has multiple water level settings with different heights. The corrected water level is set to a water level one setting lower than the set water level. During the water intake process, if the water level in the first washing drum reaches the next water level height, the water intake for the corresponding batch is complete.

6. The water inlet control method for a multi-drum washing machine as described in any one of claims 1 to 5, characterized in that: While the first washing drum is performing the water intake program, a check is performed to determine whether the second washing drum should begin the spin-drying program. When the second washing drum is about to start the spin-drying program, the water inlet program of the first washing drum is stopped, and the start point of the water inlet program of the first washing drum, and / or the water inlet volume, and / or the process of the water inlet program are adjusted.

7. The water inlet control method for a multi-drum washing machine as described in any one of claims 1 to 5, characterized in that: Before the second washing drum starts the spin-drying process, it is determined whether the first washing drum is currently running the water intake process; If so, the second washing drum will pause the spin-drying process until the first washing drum completes the water intake process before resuming the spin-drying process.

8. The water inlet control method for a multi-drum washing machine as described in any one of claims 1 to 5, characterized in that: The amount of vibration of the washing machine is detected when the first washing drum is running the water intake program; Determine if the vibration level of the washing machine exceeds the normal vibration value; If so, the start point of the water inlet program of the first washing drum, and / or the water inlet volume of the water inlet program, and / or the process of the water inlet program shall be adjusted; If not, the first washing drum will execute the water intake program until the washing water level reaches the set level, at which point the water intake program will terminate.

9. A multi-drum washing machine, comprising at least a first washing drum and a second washing drum capable of independently performing the washing steps of clothes; characterized in that: The water inlet control method for a multi-drum washing machine as described in any one of claims 1 to 8 is applied.

10. The multi-drum washing machine as described in claim 9, characterized in that: The first and second washing drums are each equipped with a water level detection device to detect the water level in the first and second washing drums respectively.

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