Washing machine

Abstract

To provide a washing machine capable of continuing operation with a proper liquid agent even if a user does not replace liquid agents when the user feeds the liquid agent into a wrong place.SOLUTION: A washing machine comprises: a washing tub; a plurality of liquid agent storage parts that store a plurality of liquid agents, respectively; a plurality of feed valves to feed each liquid agent from the plurality of liquid agent storage parts into the washing tub; a foaming detection part to detect foaming amount in the washing tub; and a control part that discriminates the liquid agent fed into the washing tub based on the foaming amount detected by the foaming detection part and controls the feed valves.SELECTED DRAWING: Figure 3A

Description

[Technical Field]

[0001] The following disclosure relates to washing machines. [Background technology]

[0002] Patent Document 1 discloses a washing machine that allows a user to wash clothes simply by replacing the container lids even if the user puts the wrong liquid detergent or fabric softener into the wrong container. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Publication No. 2022-134157 Summary of the Invention [Problem to be solved by the invention]

[0004] The present disclosure aims to provide a washing machine that can continue to operate with the appropriate liquid agent even if the user puts the liquid agent in the wrong place, without the user having to replace the liquid agent. [Means for solving the problem]

[0005] The washing machine of the present disclosure includes a washing tub, a plurality of liquid agent storage sections each containing a plurality of liquid agents, a plurality of supply valves for supplying each liquid agent from the plurality of liquid agent storage sections to the washing tub, a foam detection section that detects the amount of foam in the washing tub, and a control section that identifies the liquid agent supplied to the washing tub based on the amount of foam detected by the foam detection section and controls each of the supply valves. [Effects of the Invention]

[0006] According to the present disclosure, it is possible to provide a washing machine that can continue to operate with the appropriate liquid agent even if the user puts the liquid agent in the wrong place, without the user having to replace the liquid agent. [Brief explanation of the drawings]

[0007] [Figure 1] FIG. 1 is a perspective view showing the outline of the appearance of a washing machine 1. [Figure 2] FIG. 2 is a perspective view showing the internal structure of the washing machine 1. [Figure 3A] 1 is an example of a block diagram of a washing machine 1. FIG. [Figure 3B] 1 is another example of a block diagram of the washing machine 1. FIG. [Figure 3C] 1 is another example of a block diagram of the washing machine 1. FIG. [Figure 4A] 10 is a flowchart showing a preferred example of processing by the control unit 50. [Figure 4B] 4B is a part of the flowchart shown in FIG. 4A. DETAILED DESCRIPTION OF THE INVENTION

[0008] Hereinafter, embodiments of a washing machine according to the present disclosure will be described with reference to the drawings. The present disclosure is not limited to the contents described in the following embodiments, and appropriate design changes can be made within the scope of the configuration of the present disclosure. In the drawings, identical or equivalent elements are designated by the same reference numerals, and redundant explanations will be omitted. The following will focus on the main parts and parts related to the present disclosure.

[0009] In the present disclosure, the term "washing machine" refers to a general device that performs various processes, such as washing, on items to be washed. Examples of processes for items to be washed include washing, drying, deodorizing, and sterilizing. The items to be washed are not particularly limited. Examples of items to be washed include cloth products. Specific examples of items to be washed include clothing such as clothes, hats, and gloves; personal belongings such as shoes, bags, handkerchiefs, and towels; curtains; bedding such as blankets, towel blankets, and futon covers; carpets; stuffed toys; and the like.

[0010] The term "vertical washing machine" refers to a washing machine in which, when installed, the rotation axis of the tub extends substantially vertically.

[0011] A "drum-type washing machine" refers to a washing machine in which, when installed, the rotation axis of the tub extends substantially horizontally or obliquely upward toward the front.

[0012] FIG. 1 is a perspective view showing the outline of the appearance of a washing machine 1 according to this embodiment. FIG. 2 is a perspective view showing the outline of the internal structure of the washing machine 1. FIG. 3A is an example of a block diagram of the washing machine 1. FIGS. 3B and 3C are other examples of block diagrams of the washing machine 1. These drawings show only the main parts. Note that, although a drum-type washing machine will be described as an example in this embodiment, a vertical washing machine may also be used.

[0013] The washing machine 1 includes a washing tub 12, a plurality of liquid agent storage sections 20, a plurality of supply valves 30, a foaming detection section 41, and a control section 50. The washing machine 1 typically further includes a water supply section 14 that supplies water to the washing tub 12, a drain section 15 that drains the water from the washing tub 12, an operation display section 51 that displays various information and accepts operations from the user, a drive section 60 for driving the washing tub 12, etc. As described below, the washing machine 1 preferably further includes a notification section 52 that notifies the user of information and an input detection section 53 that detects input from the user. The washing machine 1 also preferably further includes a memory section 54, as described below.

[0014] Washing tub 12 is housed inside housing 10. Housing 10 is made of, for example, metal or synthetic resin, and is substantially rectangular in plan view. Washing machine 1 further includes door 11, and housing 10 has opening 13 inside door 11. Door 11 opens and closes opening 13. Door 11 is kept openable and closable by, for example, a hinge. With door 11 open, laundry is placed into washing tub 12 through opening 13.

[0015] The housing 10 houses a washing tub 12 for storing laundry and various other functional components. The washing tub 12 has a bottomed cylindrical shape with one end open, and is, for example, inclined diagonally upward relative to the horizontal. Examples of the bottomed cylindrical shape include a bottomed cylindrical shape and a bottomed rectangular cylindrical shape. For example, in a drum-type washing machine, the washing tub 12 is composed of an outer tub and an inner tub disposed inside the outer tub. The inner tub is rotatably supported by the outer tub, and the outer tub is swingably supported in the housing 10. The inner tub has multiple holes through which liquid agent, water, and air can flow between the space between the outer tub and the inner tub and the interior space of the inner tub.

[0016] The washing machine 1 is provided with a plurality of liquid agent storage sections 20. The number of liquid agent storage sections 20 provided in the washing machine 1 may be two or more, and may be three or more. One type of liquid agent is stored in each liquid agent storage section 20. Examples of the liquid agent include a detergent, fabric softener, and bleach. At least one of the liquid agents stored in the plurality of liquid agent storage sections 20 is a detergent.

[0017] Each liquid agent storage unit 20 is made of, for example, metal or synthetic resin and has, for example, a substantially polygonal pyramid or polygonal prism shape. The plurality of liquid agent storage units 20 are arranged horizontally, for example, on the upper part of the housing 10 (see FIGS. 1 and 2).

[0018] The plurality of liquid storage sections 20 include a first storage section 21 for storing a first liquid agent and a second storage section 22 for storing a second liquid agent (see FIG. 1 ). The first storage section 21 is a member or portion for storing the first liquid agent, and the second storage section 22 is a member or portion for storing the second liquid agent. Normally, the first liquid agent is stored in the first storage section 21, and the second liquid agent is stored in the second storage section 22; however, if the user inserts the liquid agent into the wrong place, for example, the second liquid agent may be stored in the first storage section 21, and the first liquid agent may be stored in the second storage section 22.

[0019] Each liquid agent storage unit 20 has an automatic dispensing function that dispenses the liquid agent stored therein into the washing tub 12 in response to an instruction from the control unit 50. The washing machine 1 may also include one or more liquid agent amount detection units that detect an increase in the liquid agent in each liquid agent storage unit 20. Each liquid agent storage unit 20 may also be detachable.

[0020] The washing machine 1 is provided with a plurality of supply valves 30 for supplying each liquid agent from a plurality of liquid agent storage units 20 into the washing tub. At least one supply valve 30 is arranged to be connected to one liquid agent storage unit 20. The plurality of supply valves 30 includes a first supply valve connected to a first storage unit 21 and a second supply valve connected to a second storage unit 22.

[0021] In response to an instruction from the control unit 50, the liquid agent in the first storage unit 21 flows from the first storage unit 21 through a supply path connecting the first storage unit 21 and the first supply valve toward the first supply valve. When the first supply valve is in an open state, the liquid agent flows through a supply path connecting the first supply valve and the washing tub 12 and is dispensed into the washing tub 12. The supply path connecting the first supply valve and the washing tub 12 may merge with a water supply path provided in the water supply unit 14. Similarly, in response to an instruction from the control unit 50, the liquid agent in the second storage unit 22 flows from the second storage unit 22 through a supply path connecting the second storage unit 22 and the second supply valve toward the second supply valve. When the second supply valve is in an open state, the liquid agent flows through a supply path connecting the second supply valve and the washing tub 12 and is dispensed into the washing tub 12. The supply path connecting the second supply valve and the washing tub 12 may merge with a water supply path provided in the water supply unit 14.

[0022] The foam detection unit 41 detects the amount of foam in the washing tub 12 based on an instruction from the control unit 50, and outputs the detected amount of foam to the control unit 50. The amount of foam can be detected, for example, as a rise in the liquid level due to foaming. As the foam detection unit 41, for example, a photoelectric sensor, an optical sensor, a capacitance sensor, an ultrasonic sensor, a camera, etc. are preferably used.

[0023] It is preferable that the washing machine 1 further includes a notification unit 52 that notifies the user of information, and an input detection unit 53 that detects an input from the user (see FIGS. 3B and 3C).

[0024] The notification unit 52 notifies the user of information by text, images, sound, light, or the like. Examples of the notification unit 52 that are preferably used include the operation display unit 51, a speaker, lighting such as an LED, a buzzer, and a communication module for communicating with an external device. The external device may be a communication terminal device owned by the user, such as a smartphone, a smart speaker, or a tablet, or may be a cloud-based device. The communication module may be connected to a communication line via a router, a gateway, or the like, and may be capable of communicating with the external device via the communication line, or may be capable of directly communicating with the external device via, for example, short-range wireless communication, without using a communication line.

[0025] The input detection unit 53 detects an input from the user. As the input detection unit 53, for example, the operation display unit 51; a communication module for communicating with an external device; or the like is preferably used.

[0026] The control unit 50 controls various components and functional units based on operation instructions to the washing machine 1. Operation instructions to the washing machine 1 are, for example, instructions from a user or the like regarding setting or changing the operation start (operation ON), operation stop (operation OFF), operation type (e.g., washing, drying, tub cleaning, deodorization, etc.), operation mode (e.g., standard mode, quick mode, dry mode, etc.), automatic liquid agent dispenser, etc.

[0027] The control unit 50 is configured with a CPU, an MPU, etc., and executes a program stored in a memory unit 54 that may be included in the washing machine 1 or in a memory device external to the washing machine 1. It is preferable that the washing machine 1 further includes a memory unit 54 (see FIG. 3C). The control unit 50 may be a microcomputer including a CPU, a memory device, etc. At least a part of the processing performed by the control unit 50 may be performed outside the washing machine 1.

[0028] It is preferable that control unit 50 controls the first supply valve connected to first storage unit 21 to supply the liquid agent in first storage unit 21 to washing tub 12 simultaneously with or before or after the supply of water into washing tub 12. Note that control unit 50 independently controls the opening and closing of multiple supply valves 30 so that multiple liquid agents are not supplied to washing tub 12 at the same time.

[0029] Control unit 50 causes foam detection unit 41 to detect the amount of foaming when a specified level of water and a specified amount of at least one liquid agent are present. Control unit 50 determines the liquid agent dispensed into washing tub 12 based on the amount of foaming detected by foam detection unit 41. Since detergents typically foam more than fabric softeners or bleaches, it is possible to determine whether the liquid agent dispensed into washing tub 12 is a detergent based on the amount of foaming in washing tub 12.

[0030] It is also preferable that the control unit 50 distinguishes between the liquid agents after the start of the washing operation. For example, it is preferable that the foam detection unit 41 detects the amount of foam after a predetermined time (e.g., 1 to 5 minutes) has elapsed since the start of the washing operation. The washing operation is an operation in which the washing tub 12 and other components are rotated in the presence of water and at least one type of liquid agent (e.g., a first liquid agent). The start of the washing operation is the point when the supply of water and liquid agent to the washing tub 12 begins and the washing tub 12 and other components begin to rotate.

[0031] When the control unit 50 determines that the liquid agent dispensed into the washing tub 12 from the first supply valve is not the first liquid agent, the control unit 50 causes the notification unit 52 to notify the user of a message prompting the user to confirm. The notification unit 52 notifies the user of a message prompting the user to confirm that the liquid agent has been dispensed incorrectly. Thereafter, the user makes an input to the washing machine 1 confirming that the liquid agent has been dispensed incorrectly (referred to as a first input) or makes an input denying that the liquid agent has been dispensed incorrectly (referred to as a second input).

[0032] When input detection unit 53 detects a first input from the user, control unit 50 performs a switching process to switch the control of the first supply valve connected to first storage unit 21 and the second supply valve connected to second storage unit 22. In this way, when control unit 50 determines that the liquid agent dispensed into washing tub 12 from the first supply valve is not the first liquid agent, notification unit 52 notifies the user of a message prompting confirmation, and when input detection unit 53 detects a first input from the user, control unit 50 preferably performs a switching process to switch the control of the first supply valve connected to first storage unit 21 and the second supply valve connected to second storage unit 22.

[0033] It is preferable that notification unit 52 notify the user of a message regarding the replacement process simultaneously with or around the time of the replacement process. The message regarding the replacement process may, for example, inform the user that the functions of first storage unit 21 and second storage unit 22 have been swapped, and therefore the user does not need to replace the contents of these storage units. The message regarding the replacement process may also further inform the user that after draining and spin-drying, washing machine 1 will automatically recharge the liquid agent and restart the wash cycle. Furthermore, washing machine 1 preferably further includes a memory unit 54, and memory unit 54 preferably stores, simultaneously with or around the time of the replacement process, that first storage unit 21 contains the second liquid agent and second storage unit 22 contains the first liquid agent.

[0034] After performing the replacement process, the control unit 50 preferably drains the water from the washing tub 12 and performs a spin-drying operation. This is to wash away any liquid agents adhering to the laundry in the washing tub 12. For example, if a detergent is supposed to be added as the first liquid agent but a second liquid agent (e.g., fabric softener) is mistakenly added, the second liquid agent may adhere to the laundry, resulting in a decrease in washing performance. However, when the draining and spin-drying operations are performed, such a decrease in washing performance is sufficiently suppressed.

[0035] On the other hand, if the input detection unit 53 detects a second input from the user after the notification unit 52 notifies the user of a message prompting confirmation, it is preferable that the control unit 50 continue the wash operation. That is, as described above, it is preferable that the control unit 50 distinguishes the liquid after starting the wash operation, but when the input detection unit 53 detects a second input from the user, it is preferable that the control unit 50 continue the wash operation.

[0036] The above replacement process by the control unit 50 is preferably performed when the user performs a washing operation for the first time after purchasing the washing machine 1, or when an instruction is received from the user (for example, when the washing operation is performed for the first time after washing the washing machine 1 and resetting the settings).

[0037] An example of the process executed by the control unit 50 described above will be further described below with reference to Figs. 3C, 4A, and 4B. Fig. 3C is also a block diagram of the washing machine 1 described below. In the example described below, the first liquid agent is a detergent, and the second liquid agent is a fabric softener.

[0038] 4A and 4B are flowcharts showing a preferred example of processing by the control unit 50. Fig. 4B is a part of the flowchart shown in Fig. 4A. For example, if the determination is NO in step S7 of Fig. 4A, the processing by the control unit 50 proceeds to step S21 of Fig. 4B.

[0039] After the user turns on the power to the washing machine 1 (step S1), the control unit 50 receives a washing operation instruction from the user (step S2). When the control unit 50 receives the washing operation instruction, it is preferable that the control unit 50 notifies the user via the notification unit 52 to prompt the user to set automatic detergent dispensing and to dispense detergent into the first storage unit 21. The control unit 50 detects an increase in the liquid agent in the first storage unit 21, thereby determining that detergent has been dispensed into the first storage unit 21.

[0040] Thereafter, control unit 50 supplies water up to a specified water level (step S3). Simultaneously with or before or after this water supply, control unit 50 controls the opening and closing of a first supply valve connected to first storage unit 21 to dispense a predetermined amount of the liquid agent in first storage unit 21 into washing tub 12 (step S3). Control unit 50 can adjust the amount of liquid agent dispensed into washing tub 12 by adjusting the degree of opening and the opening time of the first supply valve.

[0041] After step S3, control unit 50 starts the wash operation (step S4). This starts the washing process in washing machine 1 (step S4). Control unit 50 counts the execution time from the start of the wash operation (step S5). When a predetermined time (e.g., 10 seconds to 3 minutes) has elapsed since the start of the wash operation, control unit 50 causes foam detection unit 41 to detect the amount of foam (step S6), and determines whether the amount of foam detected by foam detection unit 41 is equal to or greater than reference value X1 (step S7).

[0042] If the amount of foaming is equal to or greater than the reference value X1 in step S7 (YES), the control unit 50 determines that the liquid agent in the first storage unit 21 that was added to the washing tub 12 in step S3 is the first liquid agent (detergent) and counts the execution time from that point (step S8). The control unit 50 then continues the washing operation until a preset washing operation time is completed, and determines whether the preset washing operation time has been completed (step S9). If the control unit 50 determines that the washing operation time has been completed (YES), the control unit 50 ends the washing operation (step S10). This ends the washing cycle in the washing machine 1 (step S10). The control unit 50 opens the drain valve provided in the drain unit 15 to drain the water (step S11), and then performs a normal rinsing cycle and a spin-drying cycle (step S12). This starts the normal rinsing cycle and a spin-drying cycle in the washing machine 1 (step S12).

[0043] If the amount of foaming is less than the reference value X1 in step S7 (NO), the control unit 50 determines that the liquid agent in the first storage unit 21 that was dispensed into the washing tub 12 in step S3 is not the first liquid agent (detergent). That is, the control unit 50 determines that the liquid agents that should be dispensed into the first storage unit 21 and the second storage unit 22 are incorrect. In this case, the control unit 50 notifies the user via the notification unit 52 to prompt the user to check whether the liquid agent has been dispensed in the wrong place, for example, whether fabric softener has been dispensed into the detergent case (step S21 in FIG. 4B). The user makes the check based on this notification.

[0044] If the user confirms that the second liquid agent (fabric softener) has been added to the first storage unit 21 (YES in step S21), for example, by operating the operation display unit 51 (e.g., by pressing a first button on the operation display unit 51), the control unit 50 performs a switching process to switch the control of the first supply valve connected to the first storage unit 21 and the second supply valve connected to the second storage unit 22. That is, the control unit 50 changes the control content so that the second supply valve can open and close in response to an instruction to add the first liquid agent, and the first supply valve can open and close in response to an instruction to add the second liquid agent (step S22). Simultaneously with or around step S22, the control unit 50 notifies the user via the notification unit 52 that the functions of the liquid agent storage units 21, 22 have been switched, so that the contents of the liquid agent storage units 21, 22 can be used as is without switching them, and notifies the user that the washing machine will drain and spin, automatically add detergent, and restart the wash cycle (step S23).

[0045] After step S22, control unit 50 opens a drain valve provided in drain unit 15 to drain water (step S24), and starts a spin-drying operation (step S25). This starts the spin-drying process in washing machine 1 (step S25). In FIG. 4B, step S24 is described after step S23, but step S24 may be performed simultaneously with step S23 or before step S23.

[0046] The control unit 50 counts the execution time from the start of the spin operation in step S25 (step S26). The control unit 50 continues the spin operation until a predetermined time (e.g., 1 to 3 minutes) has elapsed since the start of the spin operation, and determines whether the predetermined time has elapsed (step S27). If the control unit 50 determines that the predetermined time has elapsed (YES), it ends the spin operation (step S28). This ends the spin process in the washing machine 1 (step S28). Thereafter, simultaneously with or around the time of supplying water to the specified water level, the control unit 50 controls the opening and closing of the second supply valve connected to the second storage unit 22 to dispense a predetermined amount of the liquid agent from the second storage unit 22 into the washing tub (step S29). The specified water level of the target water supply target and the amount of liquid agent to be dispensed in step S29 are the same as those in step S3.

[0047] After step S29, the control unit 50 starts the wash operation (step S30). This starts the washing cycle in the washing machine 1 (step S30). The control unit 50 counts the execution time from the start of the wash operation (step S31). Thereafter, the control unit 50 continues the wash operation until a preset wash operation time is completed, and determines whether the preset wash operation time is completed (step S32). If the control unit 50 determines that the wash operation time is completed (YES), the control unit 50 ends the wash operation (step S33). This ends the washing cycle in the washing machine 1 (step S33). Thereafter, the control unit 50 opens the drain valve provided in the drain unit 15 to drain the water (step S11 in FIG. 4A), and then performs a normal rinse operation and a spin operation (step S12). Note that if the wash operation time has not yet completed (NO) in step S32, the control unit 50 continues the wash operation until the wash operation time is completed.

[0048] On the other hand, after step S21, if the user denies that a liquid agent other than the first liquid agent (detergent) has been put into the first storage compartment 21 (if NO in step S21), for example, by operating the operation display unit 51 (for example, by pressing a second button on the operation display unit 51 that is different from the first button), the control unit 50 continues the wash operation and counts the execution time from the time the notification unit 52 notified in step S21 (step S34). Thereafter, the control unit 50 continues the wash operation until a preset wash operation time is completed, and determines whether the preset wash operation time is completed (step S35). If the control unit 50 determines that the wash operation time is completed (if YES), the control unit 50 ends the wash operation (step S36). This ends the washing process in the washing machine 1 (step S36). Thereafter, the control unit 50 opens the drain valve provided in the drain unit 15 to drain the water (step S11 in FIG. 4A), and then performs the normal rinse and spin operations (step S12). If the washing operation time has not yet completed in step S35 (NO), the control unit 50 continues the washing operation until the washing operation time is completed.

[0049] In the washing machine 1 of this embodiment, if the user puts the liquid agent in the wrong place, the user can continue the wash operation by switching the control of the supply valve 30, for example, by operating a button on the operation display unit 51, without having to replace the contents of the liquid agent storage unit 20. The washing machine 1 can also efficiently restart the wash operation. Therefore, the washing machine 1 can perform the wash operation with the appropriate liquid agent without the user having to take the time and effort to replace the liquid agent, and it is also possible to prevent loss of wash time and deterioration of cleaning performance.

[0050] Although the embodiments of the present disclosure have been described above, the present disclosure is not limited to the above embodiments and can be implemented in various forms without departing from the spirit of the present disclosure. Furthermore, the components disclosed in the above embodiments can be modified as appropriate. For example, some of the components shown in one embodiment may be added to the components of another embodiment, or some of the components shown in one embodiment may be deleted from the embodiment.

[0051] Furthermore, the drawings mainly show each component in a schematic manner to facilitate understanding of the invention, and the thickness, length, number, spacing, etc. of each component shown in the drawings may differ from the actual ones due to the convenience of creating the drawings. Furthermore, the configurations of each component shown in the above embodiment are merely examples and are not particularly limited, and it goes without saying that various modifications are possible within a scope that does not substantially deviate from the effects of the present disclosure. [Explanation of symbols]

[0052] 1: Washing machine 10: Housing 11: Door 12: Washing machine tub 13: Opening 14: Water supply section 15: Drainage section 20, 21, 22: Liquid storage section 30: Supply valve 41: Foam detection unit 50: Control unit 51: Operation display section 52:Notification section 53: Input detection unit 54: Storage section 60: Drive unit

Claims

1. A washing machine and a plurality of liquid agent storage sections each storing a plurality of liquid agents; A plurality of supply valves for supplying each liquid agent from the plurality of liquid agent storage units into the washing tub; A foaming detection unit that detects the amount of foaming in the washing tub; a control unit that identifies the liquid agent put into the washing tub based on the amount of foaming detected by the foaming detection unit and controls each of the supply valves. washing machine.

2. the plurality of liquid agent storage sections include a first storage section for storing a first liquid agent and a second storage section for storing a second liquid agent; The control unit controls a first supply valve connected to the first storage unit simultaneously with or before or after the supply of water into the washing tub, to supply the liquid agent in the first storage unit into the washing tub. The washing machine according to claim 1.

3. a notification unit that notifies a user of information; an input detection unit that detects an input from the user, When the control unit determines that the liquid agent dispensed into the washing tub from the first supply valve is not the first liquid agent, the notification unit notifies the user of a message prompting confirmation, When the input detection unit detects a first input from the user, the control unit performs a switching process to switch the control of a first supply valve connected to the first storage unit and a second supply valve connected to the second storage unit. The washing machine according to claim 2.

4. The notification unit notifies the user of a message regarding the replacement process simultaneously with or before or after the replacement process. The washing machine according to claim 3.

5. Further comprising a storage unit, The memory unit stores that the first storage unit stores the second liquid agent and the second storage unit stores the first liquid agent simultaneously with or before or after the replacement process. The washing machine according to claim 3 or 4.

6. After performing the replacement process, the control unit drains the water in the washing tub and performs a spin-drying operation. The washing machine according to claim 3 or 4.

7. The control unit distinguishes the liquid agent after starting the washing operation, When the input detection unit detects a second input from the user, the control unit continues the washing operation. The washing machine according to claim 3.

Images