Midway clothes adding control method of double-drum washing machine and double-drum washing machine

Abstract

The invention provides a halfway clothes adding control method for a double-drum washing machine and the double-drum washing machine. The double-drum washing machine comprises two washing drums which operate independently, when a user adds clothes into one drum in a working state, a halfway clothes adding instruction is sent to the washing machine, the drum is defined as a clothes adding drum by the washing machine, and the clothes adding drum is connected with the washing machine; meanwhile, the current running state of the other washing drum is detected, whether water in the clothes adding drum can be temporarily stored or not is judged according to whether the other washing drum is in an idle state or not or according to whether the process corresponding to the working state of the other washing drum is matched with the water in the clothes adding drum or not, and when it is judged that the water in the clothes adding drum can be temporarily stored, the clothes adding drum is started. According to the clothes adding device, water in the clothes adding cylinder is temporarily stored in the other washing cylinder, after clothes adding is completed, the water temporarily stored in the other washing cylinder is sent back to the clothes adding cylinder, waste of water resources caused by the midway clothes adding process is avoided, and the use experience of a user is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of washing machines, and in particular relates to a control method for adding clothes to a double-drum washing machine during the process and the double-drum washing machine. Background Art

[0002] Washing machines are household appliances that can wash clothes on behalf of users and are loved by the majority of users. However, in actual use, users often miss clothes. If one or a few pieces of scattered laundry are washed separately, it will lead to a waste of water resources. During the washing process, the washing machine door cannot be opened and users cannot add the missed clothes into the washing machine.

[0003] In order to solve this problem, a Chinese utility model patent with application number CN201821585971.7 discloses a drum washing machine, including a washing drum, a drainage pipe and a controller, one end of the drainage pipe is connected to the washing drum, and the other end of the drainage pipe is connected to the outside, a drainage pump is arranged on the drainage pipe, and the drainage pump is connected to the controller, the drum washing machine also includes a water storage tank and a circulation pipeline, the washing drum and the water storage tank are connected through the drainage pipe and the circulation pipeline, a three-way solenoid valve is arranged between the drainage pipe and the circulation pipeline, and the three-way solenoid valve is connected to the controller; although the above scheme can temporarily store the washing water in the water storage tank to realize adding clothes midway, it is necessary to independently set up two sets of water storage structures for the double-drum washing machine, which increases the production cost of the washing machine, and causes the size of the washing machine to increase significantly, reducing the user experience.

[0004] A Chinese invention patent with application number CN201911365954.1 discloses a drum washing machine capable of adding clothes midway and a control method thereof. The drum washing machine comprises a washing drum and a washing machine door for opening and closing the washing drum, and also comprises a clothes adding door and a clothes adding channel. When the washing machine is washing, the clothes adding door can be opened and the clothes can be fed into the washing drum through the clothes adding channel. The above scheme can add clothes without opening the door by setting an independent clothes adding channel. However, the setting of the clothes adding channel in the above scheme will inevitably affect the capacity of the washing drum, and in a double-drum washing machine, it is impossible to selectively add clothes to a certain drum through a single clothes adding channel.

[0005] In view of this, the present invention is proposed. Summary of the invention

[0006] In order to solve the problems in the above-mentioned prior art solutions, the present invention provides a method for controlling the mid-cycle addition of clothes to a twin-drum washing machine. When clothes need to be added during the operation of one of the drums, the operating status of the other washing drum is detected, and when it is determined according to the operating status that the water in the drum where clothes need to be added can be temporarily stored in the other washing drum, the washing water is temporarily stored in the other washing drum, without the need to drain the water, and the washing machine can continue to operate without refilling water after adding clothes, thereby saving water resources.

[0007] The present invention also provides a double-drum washing machine, comprising a first drum and a second drum that operate independently, the first drum and the second drum being connected via a connecting pipe, a pump body being arranged on the connecting pipe, the pump body being communicatively connected to a control unit of the washing machine, and the transfer of water in the first drum and the second drum being achieved via the pump body.

[0008] In order to achieve the above object, the first aspect of the present invention provides a method for controlling adding clothes to a double-drum washing machine, wherein the double-drum washing machine includes two drums that operate independently of each other, and includes the following steps:

[0009] S1, the washing machine receives a command to add laundry to one of the drums in the working state, defines it as the adding drum, and detects the operating state of the other washing drum;

[0010] S2, judging that another washing drum can temporarily store the water in the clothes adding drum according to the running status, pausing the current working process of the clothes adding drum, and discharging the water in the clothes adding drum into another washing drum;

[0011] S3. The washing machine receives the instruction to complete the mid-process adding of clothes, and returns the water temporarily stored in the other washing drum to the adding drum, and the adding drum continues the current working process.

[0012] The above scheme detects the operating status of the other washing drum, and determines according to the operating status that the water in the adding drum can be temporarily stored. There is no need to drain the excess water in the adding drum, but the water is transferred to the other washing drum for temporary storage. After the adding of clothes is completed, part of the water temporarily stored in the other washing drum is sent back to the adding drum. There is no need to drain the water in the adding drum to the outside of the washing machine, thus avoiding the waste of water resources caused by re-filling of water after adding clothes.

[0013] Further, in step S1, the operating state of the other washing drum includes an idle state and a working state;

[0014] In step S2, the other washing tub is in an idle state, and it is determined that the water in the clothes adding tub can be temporarily stored.

[0015] Furthermore, in step S1, after detecting that the other washing tub is in a working state, continue to detect the current working process of the other washing tub, the working process includes: washing process, rinsing process, drainage process, and dehydration process;

[0016] In step S2, the other washing drum and the adding clothes drum are in the same working process, and it is determined that the current process of the other washing drum is compatible with the water in the adding clothes drum, and the water in the adding clothes drum can be temporarily stored.

[0017] In the above scheme, the working process of the other washing drum is the same as the working process of the clothes adding drum, and the mixing of water in the two drums will not affect the normal operation of the other washing drum; the water returned to the clothes adding drum after adding clothes is completed is still the water corresponding to the current working process, and will not affect the normal operation of the clothes adding drum, thereby improving the user experience.

[0018] Further, the laundry program includes a plurality of washing processes, a rinsing process, a draining process and a dehydration process arranged in a preset order;

[0019] Step S2 also includes: the working process of the other washing drum is different from the working process of the adding drum, locating the position of the current working process of the other washing drum in the laundry program, and confirming whether there is a process in the subsequent process that is compatible with the water in the adding drum;

[0020] If it exists, the user is reminded to confirm whether to wait; otherwise, it is determined that the other washing drum cannot store the water in the adding drum.

[0021] Further, the user confirms to wait, suspends the current working process of the adding drum, waits for the other washing drum to run to a process compatible with the water in the adding drum, suspends the working process of the other washing drum, discharges the water in the adding drum into the other washing drum, and enters step S3;

[0022] Otherwise, it is determined that the other washing tub cannot store the water in the adding laundry tub.

[0023] Furthermore, in step S2, it is determined that the other washing drum cannot store the water in the clothes adding drum, the current working process of the clothes adding drum is suspended, the water is directly drained until the water level in the clothes adding drum reaches the clothes adding water level, and the clothes adding drum door is opened.

[0024] In the above scheme, since the two drums operate independently of each other, the operating stage of the adding drum may not match that of the other washing drum. At this time, it can be judged according to the stage of the operating process of the other washing drum whether there is any process compatible with the water in the adding drum in the entire washing program, and then the user can choose to wait for the other washing drum to run to a matching process before adding clothes midway, or choose not to wait. At this time, it is judged that the other washing drum cannot store the water in the adding drum, and the washing machine directly drains the water in the adding drum to meet the adding clothes demand, so that the user can choose the corresponding midway adding method according to the actual usage situation, further improving the user experience.

[0025] Furthermore, the washing machine receives an instruction to complete the mid-cycle adding of clothes, and replenishes water and detergent according to the ratio of the discharged water to the total water volume in the adding drum, and continues the current working process of the adding drum.

[0026] In the above scheme, when the user chooses to add clothes directly, in order to save water resources to the greatest extent, it is only necessary to discharge the water level in the clothes adding drum to the water level that meets the door opening requirements, and there is no need to drain all the water; correspondingly, after adding clothes midway, it is necessary to refill water into the clothes adding drum, and add detergent according to the amount of water replenished to ensure that the concentration of detergent in the water in the clothes adding drum remains consistent before and after adding clothes midway, so as to avoid a decrease in washing effect after adding clothes midway.

[0027] A second aspect of the present invention provides a twin-drum washing machine having the mid-cycle adding-clothes control method according to the above-mentioned solution.

[0028] A specific twin-drum washing machine comprises a first drum and a second drum which are independently operated and a connecting pipe which connects the first drum and the second drum, and a bidirectional pump is arranged on the connecting pipe.

[0029] Alternatively, as an alternative to the above solution, a double-drum washing machine includes a first drum and a second drum that operate independently of each other, the first drum is connected to the second drum through a first connecting pipe and a second connecting pipe, a first pump body and a second pump body are respectively provided on the first connecting pipe and the second connecting pipe, and the pumping directions of the first pump body and the second pump body are opposite.

[0030] The beneficial effects of the present invention are:

[0031] 1. When the user needs to add clothes to the adding drum during its operation, the state of the other washing drum can be detected. When it is determined that the other washing drum can temporarily store the water in the adding drum, the water in the adding drum is discharged into the other washing drum for storage. After the adding of clothes is completed, the water is returned to the adding drum, thereby avoiding the waste of water resources in the process of adding clothes.

[0032] 2. When the other washing drum is in working state, but the current process is not compatible with the water in the adding drum, continue to detect whether there is a process in the subsequent process of the other washing drum that is compatible with the water in the adding drum. If there is, the user can choose to add clothes midway when the other washing drum executes the process that is compatible with the water in the adding drum, which further improves the water-saving effect.

[0033] 3. When the user chooses not to wait for the other washing drum to execute the process that is compatible with the water in the adding drum, or when the other washing drum cannot temporarily store the water in the adding drum, the washing machine directly drains the water into the adding drum to reach the door opening water level, and the user can then put the clothes into the adding drum; after the door of the adding drum is closed, the washing machine replenishes water and detergent according to the ratio of the discharged water to the total water volume in the adding drum, to ensure normal washing needs after adding clothes, and the washing effect will not be reduced due to adding clothes. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 This is a first flow chart of the method for controlling adding clothes midway in a twin-drum washing machine according to the present invention.

[0035] Figure 2 This is a second flow chart of the method for controlling adding clothes midway in a double-drum washing machine according to the present invention.

[0036] Figure 3 This is a third flow chart of the method for controlling adding clothes midway in a twin-drum washing machine according to the present invention. DETAILED DESCRIPTION

[0037] Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Those skilled in the art will appreciate that the following embodiments are only used to explain the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0038] In the description of the present invention, unless otherwise clearly specified and limited, the terms "setting" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0039] In the description of the present invention, it should be noted that the directions or positional relationships indicated by terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “vertical”, “inside” and “outside” are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0040] The present invention provides a method for controlling the mid-time addition of clothes to a double-drum washing machine, wherein the double-drum washing machine comprises two washing drums which operate independently of each other, such as Figures 1 to 3 As shown, the method for adding clothes midway comprises the following steps:

[0041] S1, the washing machine receives a command to add laundry to one of the drums in the working state, defines it as the adding drum, and detects the operating state of the other washing drum;

[0042] S2, judging that another washing drum can temporarily store the water in the clothes adding drum according to the running status, pausing the current working process of the clothes adding drum, and discharging the water in the clothes adding drum into another washing drum;

[0043] S3. The washing machine receives the instruction to complete the mid-process adding of clothes, and returns the water temporarily stored in the other washing drum to the adding drum, and the adding drum continues the current working process.

[0044] In the above scheme, the user needs to add clothes during the washing process. The washing machine can determine whether it can temporarily store the washing water in the adding drum according to the working status of the other washing drum. When it is confirmed that the washing water can be temporarily stored, part or all of the water in the adding drum will be discharged into the other washing drum, and the user can safely open the door and add clothes. After completing adding clothes, the washing machine can also return the washing water temporarily stored in the other washing drum to the adding drum, avoiding the direct discharge of washing water when adding clothes in the middle of the process, resulting in a waste of water resources and detergent, thereby improving the user experience.

[0045] The following is a further detailed description with reference to specific embodiments.

[0046] Embodiment 1

[0047] As an embodiment of the present invention, this embodiment provides a method for controlling adding clothes to a twin-drum washing machine, which is specifically as follows.

[0048] In this embodiment, if Figure 1 As shown, when the user needs to add clothes during the washing process, he first sends an instruction to add clothes midway to the washing machine. After receiving the instruction, the washing machine defines the washing drum that needs to add clothes midway as the adding drum, detects the operating status of the other washing drum and judges whether it can temporarily store the water in the adding drum according to the operating status of the other washing drum. If it is detected that the other washing drum is in an idle state, it is judged that the other washing drum can temporarily store the water in the adding drum, and the washing machine discharges the water in the adding drum into the other washing drum. After the adding of clothes is completed, the water in the other washing drum is sent back to the adding drum for further washing, thereby avoiding the direct discharge of water in the adding drum and causing waste of water resources.

[0049] If it is detected that the other washing drum is in operation, it is determined that the other washing drum cannot temporarily store the water in the adding drum. At this time, the washing machine suspends the current working process of the adding drum, and then opens the drain valve to drain the washing water in the adding drum. After the user finishes adding clothes, the washing machine re-fills water and detergent into the adding drum to continue the current working process.

[0050] Since the above solution seriously wastes water resources, in order to reduce the waste of water resources, the washing machine opens the drain valve to drain the water until the water level in the clothes adding drum reaches the preset door opening water level. At this time, the water in the clothes adding drum is not completely emptied, but is discharged to the water level at which the user can safely open the door, reducing the amount of water discharged when adding clothes in the middle.

[0051] Furthermore, during the drainage process, the washing machine measures the drainage volume according to parameters such as the change in the weight of the clothes adding drum and the flow rate of the drainage pump, and after the user completes adding clothes midway, water and detergent are added to the clothes adding drum according to the ratio of the drainage volume to the total water volume in the clothes adding drum, to ensure that the detergent concentration and the total water volume in the clothes adding drum remain unchanged before and after adding clothes midway, and the washing effect will not be reduced due to adding clothes midway; because users usually miss a small amount of clothes when adding clothes midway, even if the number of added clothes is not calculated and the original amount of washing water and detergent is directly used, it can fully meet the washing needs.

[0052] Embodiment 2

[0053] As another embodiment of the present invention, this embodiment further makes the following improvements on the basis of the first embodiment.

[0054] In this embodiment, if Figure 2 As shown, when the user needs to add clothes midway, the washing machine detects the operating status of the other washing drum, and when it detects that the other washing drum is in working state, it will not directly determine that the other washing drum cannot temporarily store the water in the adding drum, but will further determine the working progress of the other washing drum, and determine whether it can temporarily store the water in the adding drum according to the current working progress of the other washing drum.

[0055] Specifically, it is detected that the working process of the other washing drum at least includes a washing process, a rinsing process, a draining process, and a dehydration process; since there is a difference in the water in the other washing drum in each process, it is possible to judge whether the other washing drum can temporarily store the water in the clothes adding drum based on whether the working process of the other washing drum is compatible with the water in the clothes adding drum.

[0056] Taking the example of a user adding clothes midway during the washing process of the adding drum, the washing machine detects the operating status of the other washing drum. After detecting that the other washing drum is in working status, it continues to detect the current working process of the other washing drum. If it is detected that the other washing drum is also in the washing process, it is determined that the current working process of the other washing drum is compatible with the water in the adding drum; and then it is determined that the other washing drum can temporarily store the water in the adding drum; at this time, the washing machine suspends the current working processes of the adding drum and the other washing drum, and then discharges part or all of the water in the adding drum into the other washing drum. In the process of draining water to the other washing drum, the washing machine records the drainage volume of the adding drum. After the user finishes adding clothes, the washing machine returns the discharged water to the adding drum according to the drainage volume, and then controls the adding drum and the other washing drum to continue the current working process, thereby achieving the addition of clothes midway and avoiding the waste of water resources.

[0057] Embodiment 3

[0058] As another embodiment of the present invention, this embodiment further makes the following improvements on the basis of the second embodiment.

[0059] In this embodiment, if Figure 3 As shown, when it is detected that the current working process of the other washing drum is incompatible with the water in the clothes adding drum, it is further determined whether there is a process in the subsequent working process of the other washing drum that is compatible with the water in the clothes adding drum, and the user is prompted when it is detected that there is a process in the subsequent working process of the other washing drum that is compatible with the water in the clothes adding drum.

[0060] Specifically, when processing clothes, the washing machine usually works according to the set process, that is, the washing process, the rinsing process, the dehydration process and the drainage process are arranged in a certain order, and the washing machine executes them in sequence to complete the washing of the clothes; when the washing machine detects that another washing drum is in a working process and the current working process of the other washing drum is not compatible with the water in the clothes adding drum, the working process of the other washing drum is called up, and the current working process is located in the working process, and then it is determined whether there is a process that is compatible with the water in the clothes adding drum in the subsequent unexecuted working processes of the other washing drum. If so, a prompt is issued to the user for the user to choose whether to wait for the other washing drum to run to a process that matches the water in the clothes adding drum before executing the clothes adding.

[0061] Furthermore, if the user chooses to wait, the washing machine controls the adding drum to pause the current working process. At the same time, the other washing drum continues to work until it reaches a process that matches the water in the adding drum. The working process of the other washing drum is paused and the user is reminded to add clothes midway. After the user completes adding clothes, the adding drum and the other washing drum continue the unfinished working process until the washing is completed.

[0062] Conversely, if time is urgent and the user chooses not to wait, the washing machine will directly drain at least part of the water in the adding drum, and then add corresponding water and detergent according to the proportion of drainage after the adding is completed.

[0063] It should be noted that in the above scheme, the ways in which the washing machine sends prompts to the user include local prompts and remote prompts, wherein the local prompt is to send prompts to the user through an alarm device provided in the washing machine. The alarm device may be a conventional prompt device such as a speaker and a prompt light. The type of prompt sound and the prompt mode of the prompt light adopt the conventional implementation mode in the field, which will not be elaborated here; the remote prompt is that the washing machine prompts the user through a mobile terminal and a cloud server connected to it; the prompt mode may be through text messages or an APP installed on the mobile terminal that is interconnected with the washing machine. The APP obtains the permissions of some mobile terminals and can send prompts to the user through the mobile terminal by sending prompt sounds, vibrations, flashing display screens, etc. In addition, the washing machine also controls the adding clothes drum and the other washing drum accordingly based on the user's choice.

[0064] The present invention further provides a twin-drum washing machine, which adopts the mid-cycle adding clothes control method as described in the above embodiment, and the details are as follows.

[0065] Embodiment 4

[0066] As another embodiment of the present invention, this embodiment provides a twin-drum washing machine, which adopts the mid-cycle adding clothes control method as described in the third embodiment.

[0067] In this embodiment, the twin-drum washing machine includes a first drum and a second drum that operate independently of each other. The first drum and the second drum are connected by a connecting pipe. A bidirectional pump is provided on the connecting pipe. The bidirectional pump is communicatively connected to the control unit of the washing machine to control the pumping direction of the bidirectional pump.

[0068] When the user needs to add clothes midway, the washing machine first defines the first drum or the second drum for midway adding as the adding drum, and then performs midway adding; since the other washing drum can also temporarily store water when it is idle, in order to ensure that the water can be completely sent back to the adding drum after the midway adding is completed, the two ends of the connecting pipe are connected to the first drum and the second drum from the bottom of the first drum and the second drum respectively; that is, the two-way pump works to discharge the water in the adding drum into the other washing drum for temporary storage. After the user completes the midway adding, the two-way pump works in one direction to pump the water temporarily stored in the other washing drum back into the adding drum.

[0069] Embodiment 5

[0070] As another embodiment of the present invention, this embodiment differs from the fourth embodiment in that the structure of the connecting pipe connecting the first cylinder and the second cylinder is different.

[0071] In this embodiment, the first cylinder and the second cylinder are connected through a first connecting pipe and a second connecting pipe which are independent of each other. Pump bodies are respectively provided on the first connecting pipe and the second connecting pipe, and the pumping directions of the two pump bodies are opposite.

[0072] Specifically, one end of the first connecting tube is connected to the first drum from the bottom of the first drum, and the other end is connected to the second drum, and the first connecting tube is provided with a first pump body for pumping water in the first drum to the second drum; one end of the second connecting tube is connected to the first drum, and the other end is connected to the second drum from the bottom of the second drum, and the second connecting tube is provided with a second pump body for pumping water in the second drum to the first drum; taking the example that the user needs to add clothes to the first drum, at this time the first drum is the clothes adding drum, the washing machine controls the first pump body to work to pump at least part of the water in the clothes adding drum to another washing drum, and after the user finishes adding clothes, the washing machine controls the second pump body to work to pump the water in the other washing drum back to the clothes adding drum.

[0073] The above description is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technician familiar with this patent can make some changes or modifications to equivalent embodiments of equivalent changes by using the technical content suggested above without departing from the scope of the technical solution of the present invention. The implementation scheme in the above embodiment can also be further combined or replaced. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the scope of the solution of the present invention.

Claims

1. A method for controlling the adding of clothes in a double-drum washing machine, wherein the double-drum washing machine comprises two washing drums which operate independently of each other. It is characterized in that The steps include: S1, the washing machine receives a command to add laundry to one of the drums in the working state, defines it as the adding drum, and detects the operating state of the other washing drum; S2, judging that another washing drum can temporarily store the water in the clothes adding drum according to the running status, pausing the current working process of the clothes adding drum, and discharging the water in the clothes adding drum into another washing drum; S3. The washing machine receives the instruction to complete the mid-process adding of clothes, and returns the water temporarily stored in the other washing drum to the adding drum, and the adding drum continues the current working process.

2. The method for controlling adding clothes to a double-drum washing machine according to claim 1, It is characterized in that In step S1, the operating state of another washing drum includes an idle state and a working state; In step S2, the other washing tub is in an idle state, and it is determined that the water in the clothes adding tub can be temporarily stored.

3. The method for controlling adding clothes to a double-drum washing machine according to claim 2, It is characterized in that In step S1, after detecting that the other washing tub is in working state, continue to detect the working process of the other washing tub currently in which the working process includes: washing process, rinsing process, drainage process, and dehydration process; In step S2, the other washing drum and the adding clothes drum are in the same working process, and it is determined that the current process of the other washing drum is compatible with the water in the adding clothes drum, and the water in the adding clothes drum can be temporarily stored.

4. The method for controlling adding clothes to a double-drum washing machine according to claim 3, It is characterized in that The laundry program includes a plurality of washing processes, a rinsing process, a draining process and a dehydration process arranged in a preset order; Step S2 also includes: the working process of the other washing drum is different from the working process of the adding drum, locating the position of the current working process of the other washing drum in the laundry program, and confirming whether there is a process in the subsequent process that is compatible with the water in the adding drum; If it exists, prompt the user to confirm whether to wait.

5. The method for controlling adding clothes to a double-drum washing machine according to claim 4, It is characterized in that The user confirms the waiting, suspends the current working process of the adding drum, waits for the other washing drum to run to a process compatible with the water in the adding drum, suspends the working process of the other washing drum, discharges the water in the adding drum into the other washing drum, and enters step S3; Otherwise, it is determined that the other washing tub cannot store the water in the adding laundry tub.

6. A method for controlling adding clothes to a twin-drum washing machine according to any one of claims 1 to 5, It is characterized in that In step S2, it is determined that the other washing drum cannot store the water in the adding drum, the current working process of the adding drum is suspended, and the water is directly drained until the water level in the adding drum reaches the adding water level, and then the adding drum door is unlocked.

7. The method for controlling adding clothes to a double-drum washing machine according to claim 6, It is characterized in that The washing machine receives the instruction to complete the mid-process adding of clothes, and replenishes water and detergent according to the ratio of the discharged water to the total water volume in the adding drum, and continues the current working process of the adding drum.

8. A twin-drum washing machine, It is characterized in that A method for controlling adding clothes midway as described in any one of claims 1 to 7 is adopted.

9. The twin-tub washing machine according to claim 8, It is characterized in that The double-drum washing machine comprises a first drum and a second drum which are independently operated and a connecting pipe which connects the first drum and the second drum, and a bidirectional pump is arranged on the connecting pipe.

10. The twin-tub washing machine according to claim 8, It is characterized in that The double-drum washing machine comprises a first drum and a second drum which operate independently of each other. The first drum is connected to the second drum through a first connecting pipe and a second connecting pipe. A first pump body and a second pump body are respectively arranged on the first connecting pipe and the second connecting pipe. The pumping directions of the first pump body and the second pump body are opposite.

Images