WO2024239776A1 - 处理液投入装置和洗衣机 - Google Patents

处理液投入装置和洗衣机 Download PDF

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Publication number
WO2024239776A1
WO2024239776A1 PCT/CN2024/082110 CN2024082110W WO2024239776A1 WO 2024239776 A1 WO2024239776 A1 WO 2024239776A1 CN 2024082110 W CN2024082110 W CN 2024082110W WO 2024239776 A1 WO2024239776 A1 WO 2024239776A1
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WO
WIPO (PCT)
Prior art keywords
flow path
liquid
treatment liquid
water
wall
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2024/082110
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English (en)
French (fr)
Inventor
今西佑太
松田喜彦
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qingdao Haier Washing Machine Co Ltd
Haier Smart Home Co Ltd
Aqua Co Ltd
Original Assignee
Qingdao Haier Washing Machine Co Ltd
Haier Smart Home Co Ltd
Aqua Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Qingdao Haier Washing Machine Co Ltd, Haier Smart Home Co Ltd, Aqua Co Ltd filed Critical Qingdao Haier Washing Machine Co Ltd
Publication of WO2024239776A1 publication Critical patent/WO2024239776A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/02—Devices for adding soap or other washing agents
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/08—Liquid supply or discharge arrangements

Definitions

  • the present disclosure relates to a treatment liquid input device and a washing machine.
  • Patent Document 1 An example of the treatment liquid injection device is the device disclosed in Patent Document 1.
  • a negative pressure pipe is used to suck the detergent (liquid agent) stored in the liquid storage box and mix it with water to supply it to the washing tub as the treatment liquid.
  • a flow path is formed on the top wall upper surface of the shell that accommodates the liquid storage box.
  • the treatment liquid injection device is usually arranged above the washing bucket, so in order to inject the treatment liquid into the washing bucket, the treatment liquid flowing through the flow path on the top wall upper surface needs to flow to the flow path on the lower side.
  • a method for causing the treatment liquid on the top wall upper surface to flow to the flow path on the lower side for example, it can be considered to make the treatment liquid fall in the shell. In this case, due to the splashing of the treatment liquid at the falling point, the treatment liquid is prone to foaming. Depending on the foaming state of the treatment liquid, the flow of the treatment liquid may be hindered.
  • Patent Document 1 International Publication No. 2020/113954
  • the present disclosure aims to provide a treatment liquid injection device and a washing machine having the treatment liquid injection device, which are unlikely to hinder the flow of the treatment liquid after the treatment liquid falls even if there is an area in the flow path of the treatment liquid where the treatment liquid falls from top to bottom.
  • a treatment liquid injection device comprises: a liquid containing portion; and a supply mechanism for supplying the liquid contained in the liquid containing portion together with water as the treatment liquid to a washing tub, the supply mechanism having: a flow path for the treatment liquid to flow through; and a rectifying portion, the flow path having a falling area for the treatment liquid flowing through the flow path to fall, the rectifying portion being arranged at a falling point of the treatment liquid in the falling area, the rectifying portion having a plurality of rectifying plates arranged in parallel.
  • the flow path through which the treatment liquid flows has the above-mentioned falling area.
  • the above-mentioned rectifying section is arranged at the falling point of the treatment liquid.
  • the rectifying section is composed of a plurality of rectifying plates arranged in parallel, so that the treatment liquid will fall between adjacent rectifying plates. Compared with the case where the rectifying section is not provided, this structure will suppress the splashing of the treatment liquid when it falls, so the treatment liquid is not easy to bubble. Therefore, even if the treatment liquid falls in the falling area, it is not easy to hinder the flow of the treatment liquid.
  • the supply mechanism may include: a shell, which forms a storage space for accommodating the liquid agent storage portion, the shell including: a bottom wall; a top wall, which is opposite to the bottom wall; a rear wall, which connects the bottom wall to the top wall; a first side wall, which connects the bottom wall, the top wall and the rear wall; and a second side wall, which connects the bottom wall, the top wall and the rear wall and is opposite to the first side wall, the storage space is formed by the bottom wall, the top wall, the rear wall, the first side wall and the second side wall, a loading port for loading the treatment liquid into the washing bucket is formed on the bottom wall, the flow path includes: an upper flow path, which is formed on the top wall; and a lower flow path, which is composed of a space between a lower surface of the liquid agent storage portion and the bottom wall, a hole portion is formed on the top wall for allowing the treatment liquid flowing through the upper flow path to flow to the lower flow path by falling toward the bottom wall, and the rectifying portion is is a
  • the treatment liquid flowing through the upper flow path formed in the top wall falls toward the bottom wall through the above hole.
  • the rectifying portion is arranged below the above hole, so the treatment liquid passing through the hole falls toward the rectifying portion. In this case, as described above, bubbling caused by falling is suppressed, so it is not easy to hinder the flow of the above treatment liquid from the lower flow path to the input port.
  • the hole may be formed in the top wall near the rear wall, and a length between a portion of the lower surface near the rear wall and the bottom wall may be shorter than a length between the rear wall and the liquid containing portion.
  • the rectifying portion is also arranged near the rear wall.
  • the flow path cross-sectional area of the inlet side (upstream side) of the lower flow path is narrow. Even in the case where the flow path cross-sectional area near the inlet of the lower flow path is narrow like this, the treatment liquid injection device equipped with the rectifying portion can suppress the bubbling when the treatment liquid drops from the hole, so it is not easy to hinder the flow of the treatment liquid to the lower flow path.
  • Another aspect of the present disclosure is a washing machine having a washing tub and the above-mentioned treatment liquid injection device.
  • the above-mentioned washing machine has the above-mentioned treatment liquid injection device.
  • the treatment liquid injection device even if the treatment liquid is dropped from top to bottom in the flow path, the flow of the treatment liquid is not easily obstructed. Therefore, the treatment liquid can be appropriately injected into the washing tub.
  • a treatment liquid injection device and a washing machine having the treatment liquid injection device can be provided, which are unlikely to hinder the flow of the treatment liquid after the treatment liquid falls even if there is an area in the flow path of the treatment liquid where the treatment liquid falls from top to bottom.
  • FIG. 1 is a side view of a washing machine according to one embodiment.
  • FIG. 2 is a perspective view of the washing machine shown in FIG. 1 .
  • FIG. 3 is a diagram showing a state in which the second liquid container is pulled out from the supply mechanism in the washing machine shown in FIG. 2 .
  • FIG. 4 is a diagram showing a schematic configuration of a treatment liquid feeding device.
  • FIG. 5 is a schematic diagram for explaining an example of a process in which water is supplied to the washing tub by the treatment liquid input device.
  • FIG. 6 is a schematic diagram for explaining an example of a process of taking out the first liquid from the first liquid storage unit by the processing liquid input device.
  • FIG. 7 is a schematic diagram for explaining an example of a process of injecting the first liquid agent taken out in the process shown in FIG. 6 .
  • FIG. 8 is a schematic diagram for explaining an example of a process of taking out the second liquid from the second liquid storage unit by the processing liquid input device.
  • FIG. 9 is a schematic diagram for explaining an example of a process of adding the second liquid agent taken out in the process shown in FIG. 8 .
  • FIG. 10 is a perspective view of a treatment liquid input device according to an embodiment.
  • FIG. 11 is a perspective view of a first liquid container (liquid container) according to one embodiment.
  • FIG. 12 is a perspective view of a second liquid container (liquid container) according to one embodiment.
  • FIG. 13 is a perspective view of the liquid containing portion with the cover member removed.
  • FIG. 14 is an exploded perspective view of the liquid containing portion with the cover member removed.
  • FIG. 15 is a perspective view of a supply mechanism included in the liquid container shown in FIG. 10 .
  • FIG. 16 is a perspective view of a water supply unit included in the supply mechanism shown in FIG. 15 .
  • FIG. 17 is a cross-sectional perspective view taken along line XVII-XVII of FIG. 16 .
  • FIG. 18 is a perspective view of a negative pressure generating portion included in the supply mechanism shown in FIG. 15 .
  • FIG. 19 is a cross-sectional view taken along line XIX-XIX in FIG. 18 .
  • FIG. 20 is a cross-sectional perspective view taken along line XX-XX in FIG. 18 .
  • FIG. 21 is a cross-sectional view taken along line XXI-XXI in FIG. 18 .
  • FIG. 22 is a perspective view of a housing included in the supply mechanism shown in FIG. 15 .
  • FIG. 23 is a perspective view of the housing with the top wall removed.
  • FIG. 24 is a diagram for explaining the structure of the bottom wall.
  • 25 is a diagram for explaining the arrangement relationship between the valve provided in the first liquid storage section and the valve of the first liquid delivery channel provided in the housing and connected to the first liquid storage section.
  • FIG. 26 is an exploded perspective view of the housing shown in FIG. 22 .
  • FIG. 27 is a diagram for explaining a flow path formed on the upper surface of the ceiling wall.
  • FIG. 28 is a diagram for explaining a flow path formed on the back surface of the rear wall.
  • FIG. 29 is a perspective view showing the top wall as viewed from the lower surface side.
  • FIG. 30 is a diagram for explaining the flow of liquid falling from the top wall toward the bottom wall.
  • FIG. 31 is a diagram for explaining a schematic configuration of a modified example of the treatment liquid feeding device.
  • FIG. 1 is a side view of a washing machine according to an embodiment.
  • FIG. 2 is a perspective view of the washing machine shown in FIG. 1 .
  • the X direction, Y direction, and Z direction correspond to the front-to-back direction, left-to-right direction, and height direction (or up-down direction or vertical direction) of the washing machine 1 in the setting state shown in FIG. 1 .
  • “front,” “rear,” “up,” “down,” “left,” “right,” etc., which indicate directions, are used to describe the washing machine 1.
  • the term “towards” is a term based on the installation state of washing machine 1 shown in Figs. 1 and 2 .
  • the schematic structure of the washing machine 1 is described.
  • the washing machine 1 shown in Figures 1 and 2 is a vertical washing machine.
  • the washing machine 1 has a housing 2.
  • the housing 2 constitutes the outline of the washing machine 1.
  • the housing 2 is made of metal, for example.
  • the housing 2 has a hollow body 2a with an open upper surface and a lower surface.
  • the upper surface of the body 2a is covered by an upper surface plate 2b, and a base 2c is mounted on the lower surface of the body 2a.
  • the shape of the body 2a is square (rectangular or square).
  • An inlet for washing is formed on the upper surface plate 2b.
  • the inlet is covered by an upper cover 3.
  • the upper cover 3 is mounted on the upper surface plate 2b so as to be openable and closable.
  • An operation panel 4 is provided at the front of the upper surface plate 2b.
  • a plurality of buttons for operating the washing machine 1 are arranged on the operation panel 4.
  • the operation panel 4 is electrically connected to a control unit for controlling the washing machine 1, which is provided in the washing machine 1.
  • the control unit controls the washing machine 1 according to the user's instructions inputted through the operation panel 4.
  • an outer tub 5 a and an inner tub (washing tub) 5 b are accommodated in a housing 2 .
  • the outer barrel 5a is in the shape of a bottomed cylinder.
  • the outer barrel 5a is, for example, a barrel made of resin.
  • the outer barrel 5a is elastically suspended from the housing 2 by a plurality of (for example, four) suspension rods having a vibration-proof device.
  • the outer barrel 5a is constructed so that a treatment liquid for washing can be supplied to the outer barrel 5a through a water supply path provided in the housing 2, and the treatment liquid can be discharged from the outer barrel 5a through a drainage path provided in the housing 2.
  • treatment liquid refers to a liquid corresponding to each process such as a washing process and a rinsing process of the laundry.
  • the treatment liquid in the washing process, can be a liquid containing a detergent, and in the rinsing process, the treatment liquid can be a liquid containing water or a softener.
  • the liquid flowing through the flow path is sometimes specifically referred to as a first liquid, a second liquid, and water, and the liquid flowing through the flow path is sometimes uniformly recorded as a treatment liquid.
  • the inner barrel 5b is in the shape of a bottomed cylinder.
  • the inner barrel 5b is smaller than the outer barrel 5a and is coaxially arranged on the inner side of the outer barrel 5a.
  • the inner barrel 5b is arranged on the inner side of the outer barrel 5a in a manner that it can rotate around a rotation axis extending in the Z direction.
  • the inner barrel 5b is, for example, a metal barrel.
  • the inner barrel 5b is a barrel used to wash or dehydrate the laundry put into the inner barrel 5b.
  • a plurality of through holes are formed on the inner circumferential surface of the inner barrel 5b. Thus, the washing liquid can travel between the outer barrel 5a and the inner barrel 5b.
  • a rotating wing (pulsator) 6 is rotatably arranged.
  • a driving unit 7 is also contained in the housing 2.
  • the driving unit 7 is disposed at the lower part of the outer barrel 5a.
  • the driving unit 7 generates a driving force to drive the inner barrel 5b and the rotary wing 6. 6.
  • the driving unit 7 rotates the inner tub 5b and the rotary wing 6 by the power. For example, during the washing process and the rinsing process, the driving unit 7 transmits the power only to the rotary wing 6 to rotate the rotary wing 6, and during the dehydration process, the driving unit 7 transmits the power to the rotary wing 6 and the inner tub 5b to rotate the rotary wing 6 and the inner tub 5b as a whole.
  • the washing machine 1 includes a treatment liquid injecting device 10 for injecting a liquid agent into the inner tub 5b.
  • the treatment liquid injection device 10 is installed in the upper rear part of the housing 2 in such a manner that the front part of the treatment liquid injection device 10 is exposed when the upper cover 3 is opened as shown in FIG. 2.
  • the treatment liquid injection device 10 is configured so that the injection port for injecting the liquid agent into the inner barrel 5b is located on the inner barrel 5b. Thus, the liquid agent can be injected into the inner barrel 5b from the injection port.
  • the treatment liquid injection device 10 includes a first liquid agent storage part 20A, a second liquid agent storage part 20B, and a supply mechanism 30.
  • the first liquid agent storage part 20A and the second liquid agent storage part 20B store liquid agents.
  • liquid agents include liquid detergents, softeners, and the like.
  • the first liquid agent storage part 20A and the second liquid agent storage part 20B store different liquid agents.
  • the liquid agent stored in the first liquid agent storage part 20A is referred to as the first liquid agent
  • the liquid agent stored in the second liquid agent storage part 20B is referred to as the second liquid agent.
  • the first liquid agent is a liquid detergent
  • the second liquid agent is a softener.
  • the first liquid container 20A and the second liquid container 20B are contained in a housing (box) 40 included in the supply mechanism 30.
  • the first liquid container 20A and the second liquid container 20B are slidable relative to the housing 40.
  • the housing 40 has a storage space that slidably contains the first liquid container 20A and the second liquid container 20B.
  • FIG. 3 is a diagram showing a state in which the second liquid container 20B is pulled out from the supply mechanism 30 in the washing machine 1 shown in Fig. 2.
  • the first liquid container 20A can be replenished with the first liquid by pulling out the first liquid container 20A.
  • the treatment liquid loading device 10 can also remove the first liquid container 20A and the second liquid container 20B from the housing 40. That is, the first liquid container 20A and the second liquid container 20B are detachably mounted on the housing 40.
  • FIG. 4 is a diagram showing a schematic structure of the injection device 10.
  • FIG. 4 is a diagram focusing on the flow path of the treatment liquid (water containing the first liquid agent or the second liquid agent, or water (water not containing a liquid agent)) in the treatment liquid injection device 10, and corresponds to the piping diagram of the treatment liquid injection device 10.
  • the treatment liquid injection device 10 includes a water supply channel 11, a first main channel 12A, a second main channel 12B, and an injection channel 13.
  • the water supply channel 11, the first main channel 12A, the second main channel 12B, and the injection channel 13 are channels for causing the treatment liquid to flow from the water supply port 11a to the injection port 13a.
  • the water supply port 11a of the water supply flow path 11 is connected to the hose assembly part of the washing machine 1 via a hose or the like.
  • the hose assembly part is further connected to the faucet via a hose or the like.
  • water from the faucet flows into the water supply port 11a, and thus water (treatment liquid) flows into the water supply flow path 11.
  • the water flowing into the water supply flow path 11 from the water supply port 11a flows to the injection flow path 13 through the first main flow path 12A and the second main flow path 12B, and then is injected into the inner barrel 5b from the injection port 13a of the injection flow path 13.
  • upstream and “downstream” are terms referring to the flow direction of the treatment liquid from the water supply port 11a toward the injection port 13a.
  • the treatment liquid injection device 10 includes a water supply valve V1a for controlling the flow of the treatment liquid from the water supply flow path 11 into the first main flow path 12A and a water supply valve V1b for controlling the flow of the treatment liquid from the water supply flow path 11 into the second main flow path 12B.
  • the water supply valve (first valve) V1a and the water supply valve (second valve) V1b are solenoid valves.
  • the water supply valves as the first valve and the second valve are not limited to solenoid valves.
  • the treatment liquid injection device 10 includes a flow path switching unit U1 for switching the inflow of the treatment liquid flowing through the first main flow path 12A and the second main flow path 12B into the injection flow path 13.
  • the flow path switching unit U1 is a part for switching the case where the treatment liquid flows from the first main flow path 12A to the injection flow path 13, the case where the treatment liquid flows from the second main flow path 12B to the injection flow path 13, and the case where the treatment liquid flows from both the first main flow path 12A and the second main flow path 12B to the injection flow path 13.
  • an example of the flow path switching unit U1 includes a check valve (seventh valve) V2a provided in the first main flow path 12A and a check valve (eighth valve) V2b provided in the second main flow path 12B.
  • the check valve V2a causes the treated liquid to flow from the first main flow path 12A to the injection flow path 13.
  • the check valve V2b causes the treated liquid to flow from the second main flow path 12B to the injection flow path 13.
  • a check valve is shown as an example, but the seventh valve and the eighth valve are not limited to the type of valve as long as they can achieve the same function as the check valve.
  • the first main flow path 12A is connected to the first liquid taking-out flow path 14A.
  • the first liquid containing part 20A is attached to the housing 40, the first liquid containing part 20A is connected to the first liquid taking-out flow path 14A in such a manner that the first liquid can be taken out from the first liquid containing part 20A.
  • the first liquid containing part 20A is contained in the housing 40, the first liquid containing part 20A is connected to the first main flow path 12A via the first liquid taking-out flow path 14A.
  • a check valve (fifth valve) V3a is arranged in the first liquid removal flow channel 14A.
  • a check valve is shown as an example, but the fifth valve is not limited to the type of valve as long as it can achieve the same function as the above-mentioned check valve.
  • the second main flow path 12B is connected to the second liquid taking-out flow path 14B.
  • the second liquid containing part 20B is attached to the housing 40, the second liquid containing part 20B is connected to the second liquid taking-out flow path 14B in such a manner that the second liquid can be taken out from the second liquid containing part 20B.
  • the second liquid containing part 20B is contained in the housing 40, the second liquid containing part 20B is connected to the second main flow path 12B via the second liquid taking-out flow path 14B.
  • a check valve (sixth valve) V3b is arranged in the second liquid removal flow path 14B to prevent the backflow of the treatment liquid such as water in the second main flow path 12B to the second liquid container 20B, to prevent the treatment liquid in the second main flow path 12B from leaking out when the second liquid container 20B is removed, etc.
  • a check valve is shown as an example, but the type of the sixth valve is not limited as long as it can achieve the same function as the above-mentioned check valve.
  • the processing liquid The injection device 10 is provided with a negative pressure generating unit U2.
  • the negative pressure generating unit U2 has a first venturi section 15A provided at a portion of the first main flow path 12A and a second venturi section 15B provided at a portion of the second main flow path 12B.
  • the first venturi section 15A and the second venturi section 15B generate negative pressure by the Venturi effect.
  • the first venturi section 15A is arranged in the first main flow path 12A at a position upstream of the connection portion between the first liquid agent extraction flow path 14A and the first main flow path 12A.
  • the second venturi section 15B is arranged in the second main flow path 12B at a position upstream of the connection portion between the second liquid agent extraction flow path 14B and the second main flow path 12B.
  • the first venturi section 15A and the second venturi section 15B are connected by a connecting flow path 16.
  • a flow meter 17 is provided in the connecting flow path 16. The result of the flow meter 17 can be analyzed by the control unit that controls the washing machine 1.
  • the first main flow path 12A and the second main flow path 12B are connected to the injection flow path 13 by the bypass flow path 18 that bypasses the negative pressure generating unit U2.
  • the upstream side of the bypass flow path 18 is branched into two paths and connected to the first main flow path 12A and the second main flow path 12B.
  • the connection parts of the bypass flow path 18 with the first main flow path 12A and the second main flow path 12B are located upstream of the negative pressure generating unit U2.
  • an overflow valve (third valve) V4a for controlling the flow of the treatment liquid from the first main flow path 12A to the bypass flow path 18 is arranged.
  • an overflow valve (fourth valve) V4b for controlling the flow of the treatment liquid from the second main flow path 12B to the bypass flow path 18 is arranged.
  • the relief valve is exemplified as the third valve and the fourth valve, the third valve and the fourth valve are not limited to the type of valve as long as they can achieve the same function as the relief valve.
  • Fig. 5 is a schematic diagram showing the flow of water in the water flow process. In Fig. 5, the flow of water is schematically shown by arrows.
  • the water supply valves V1a and V1b are closed, thereby maintaining the state in which the first main flow path 12A, the second main flow path 12B, and the connecting flow path 16 are filled with water (filling process).
  • the filling process is performed, if the first liquid is to be injected, the first liquid removal process and the first liquid injection process are performed, and if the second liquid is to be injected, the second liquid removal process and the second liquid injection process are performed.
  • FIG. 6 is a schematic diagram showing the flow of water and the first liquid agent during the process of taking out the first liquid agent.
  • FIG. 7 is a schematic diagram showing the flow of water and the first liquid agent during the process of adding the first liquid agent.
  • the flow of water is shown by solid arrows, and the flow of the first liquid agent is shown by dotted arrows.
  • the water in the first main flow path 12A and the connecting flow path 16 flows toward the second main flow path 12B through the connecting flow path 16 and the second venturi section 15B.
  • the pressure toward the first venturi section 15A acts on the check valve V3a, thereby opening the check valve V3a.
  • the first liquid in the first liquid storage section 20A is drawn into the first liquid extraction flow path 14A, and the first liquid is extracted toward the first main flow path 12A.
  • the first main flow path 12A is temporarily filled with liquid.
  • the first liquid is taken out so that the first storage area storing the taken out first liquid is filled.
  • the first liquid stored in the first storage area is the first liquid to be put into the inner barrel 5b as described later.
  • the amount of water flowing through the connecting flow path 16 is measured by the flow meter 17 provided in the connecting flow path 16.
  • the predetermined amount of water is the amount of water filled in the first main flow path 12A during the filling process corresponding to the amount of the first liquid agent extracted (the amount until the first storage area is filled).
  • the amount of the first liquid agent extracted is set to an amount that does not flow to the flow meter 17.
  • the first liquid agent injection process is implemented by opening the water supply valve V1a.
  • water flows to the first main flow path 12A and the second main flow path 12B as in the case of the water flow process.
  • the first liquid agent in the first storage area is injected into the inner barrel 5b together with the water.
  • the first liquid agent injection process is also the same as the case of the water flow process, and water also flows into the injection flow path 13 via the bypass flow path 18.
  • the first liquid agent After the first liquid agent is added, a certain amount of water continues to flow, thereby the first liquid agent remaining in the first main flow path 12A and the like is also washed away and is added to the inner barrel 5b together with the water.
  • the portion of the first main flow path 12A and the like through which water flows is cleaned (cleaning process).
  • the first liquid agent addition process and the cleaning process are described separately, but the first liquid agent addition process and the cleaning process can also be one process.
  • the above-mentioned cleaning process for example, when the first liquid is put into the inner barrel 5b and then the second liquid in the second liquid containing part 20B is put, the first liquid is prevented from being mixed into the treatment liquid.
  • the above-mentioned cleaning process corresponds to the above-mentioned water-passing process for the second liquid.
  • FIG8 is a schematic diagram showing the flow of water and the second liquid agent during the process of taking out the second liquid agent.
  • FIG9 is a schematic diagram showing the flow of water and the second liquid agent during the process of adding the second liquid agent.
  • the flow of water is shown by solid arrows, and the flow of the first liquid agent is shown by dotted arrows.
  • the water supply valve V1a is opened after the filling process.
  • water flows from the water supply flow path 11 into the second main flow path 12B, but water does not flow from the water supply flow path 11 into the first main flow path 12A.
  • the check valve V2a and the relief valve V4a are opened, but the check valve V2a is closed.
  • the treated liquid flows from the water supply channel 11 to the injection channel 13 via the first main channel 12A and water flows from the water supply channel 11 to the injection channel 13 via the first main channel 12A and the bypass channel 18.
  • the water in the second main flow path 12B and the connecting flow path 16 flows to the first main flow path 12A through the connecting flow path 16 and the first venturi section 15A.
  • the pressure toward the second venturi section 15B acts on the check valve V3b, thereby opening the check valve V3b.
  • the second liquid in the second liquid containing section 20B is drawn into the second liquid extraction flow path 14B, so that the second liquid is extracted toward the second main flow path 12B.
  • the second liquid is extracted in such a manner that the second storage area in the second main flow path 12B that temporarily stores the extracted second liquid is filled.
  • the second liquid stored in the second storage area is the second liquid to be put into the inner barrel 5b as described later.
  • the amount of water flowing through the connecting flow path 16 is measured by the flow meter 17 provided in the connecting flow path 16.
  • the predetermined amount of water is the amount of water filled in the second main flow path 12B during the filling process corresponding to the amount of the second liquid agent extracted (the amount until the first storage area is filled).
  • the amount of the second liquid agent extracted is set to an amount that does not flow to the flow meter 17.
  • the water supply valve V1b is opened.
  • water flows to the first main flow path 12A and the second main flow path 12B, as in the case of the water flow process, and as shown by the solid and dotted arrows in FIG. 9 , the second liquid stored between the second liquid taking-out flow path 14B and the second venturi section 15B is put into the inner barrel 5b together with the water.
  • the second liquid agent After the second liquid agent is added, a certain amount of water continues to flow, thereby the second liquid agent remaining in the second main flow path 12B is also washed away and is added to the inner barrel 5b together with the water.
  • the part of the second main flow path 12B etc. through which the water flows is cleaned (cleaning process).
  • the second liquid agent addition process and the cleaning process are described separately, but the second liquid agent addition process and the cleaning process can also be one process.
  • the control of supply mechanism 30 in the above-mentioned liquid agent feeding method may be implemented by a control unit that controls washing machine 1.
  • Supply mechanism 30 may include a control unit for controlling each device of supply mechanism 30 (water supply valves V1a, V1b, etc.).
  • FIG. 10 is a three-dimensional view of the processing liquid injection device 10.
  • the processing liquid injection device 10 includes two liquid containing parts 20 and a supply mechanism 30.
  • the two liquid containing parts 20 are distinguished for description, as described above, one of the two liquid containing parts 20 is referred to as the "first liquid containing part 20A", and the other is referred to as the "second liquid containing part 20B".
  • the first liquid containing part 20A contains a first liquid
  • the second liquid containing part 20B contains a second liquid different from the first liquid.
  • the liquid containing portion 20 has a liquid tank (liquid container) 21.
  • the liquid tank 21 is a container for storing liquid.
  • the upper surface (or upper part) of the liquid tank 21 is open.
  • the liquid tank 21 has a bottom wall 211 and a front wall 212, a left side wall 213, a right side wall 214 and a rear wall 215 arranged to surround the bottom wall 211.
  • the front wall 212, the left side wall 213, the right side wall 214 and the rear wall 215 can also stand vertically from the peripheral portion of the bottom wall 211 via a bent portion.
  • An example of the material of the liquid tank 21 is resin. Examples of the above-mentioned resin are polypropylene, polyethylene terephthalate, etc.
  • the liquid tank 21 is, for example, integrally molded from the resin.
  • the liquid tank 21 constructed as described above is in the shape of a box with an open upper surface. As shown in Figures 11 and 12, the upper surface of the liquid tank 21 is closed by a cover 22. In the present embodiment, the cover 22 is freely detachable relative to the liquid tank 21. A liquid inlet for injecting liquid into the liquid tank 21 is formed near the front wall 212 in the cover 22. In one embodiment, the liquid inlet is blocked by a cover 23. The cover 23 can be assembled to the cover 22 in a manner that allows the liquid inlet to be opened and closed freely. The user can inject the liquid into the liquid tank 21 by opening the cover 23.
  • the front door 24 may be mounted on the outer surface of the front wall 212.
  • the front door 24 may include a liquid volume window 241 formed of a transparent member, for example. The user can check the amount of liquid stored in the liquid tank 21 through the liquid volume window 241.
  • the liquid volume window 241 is disposed on the left side of the front door 24.
  • FIGS. 12 to 14 illustrate the second liquid storage section 20B as the liquid storage section 20, and therefore, in the case of the first liquid storage section 20A, the liquid volume window 241 is disposed on the right side of the front door 24.
  • a configuration of the liquid containing section 20 a configuration in which the front door 24 is omitted and the front shape of the liquid containing section 20 is formed by the front wall 212 may be adopted.
  • liquid solution taking-out section 25 and foreign matter removing section 26 are provided in liquid solution tank 21 .
  • the liquid removal portion 25 has a liquid guide flow path 251 for causing the liquid in the liquid tank 21 to flow to the supply mechanism 30.
  • the liquid removal portion 25 is connected to the rear wall 215, and the liquid guide flow path 251 penetrates the rear wall 215.
  • the liquid guide flow path 251 has a first portion 251a extending forward from the rear wall 215 and a second portion 251b drooping from the front end of the first portion 251a toward the bottom wall 211.
  • the first portion 251a is, for example, in a horizontal direction when the liquid container 20 is set in the housing 40.
  • the lower end of the second portion 251b is an inlet for drawing the liquid.
  • a check valve V5 is provided in the first portion 251a.
  • the check valve V5 is a valve for preventing the liquid in the liquid container 20 from leaking from the liquid guide flow path 251 when the liquid container 20 is removed from the housing 40.
  • the foreign matter removal portion 26 is a portion for removing foreign matter so that the foreign matter is not sucked into the liquid agent guide flow path 251. Examples of foreign matter are lint, hair, etc.
  • the foreign matter removal portion 26 is mounted on the bottom wall 211 in a manner surrounding the liquid agent removal portion 25. An example of the foreign matter removal portion 26 is described based on the scheme shown in FIGS. 13 and 14.
  • the foreign matter removal part 26 has a flat filter part 261 and a cover member 262.
  • the filter part 261 is a part that removes foreign matter. In other words, the filter part 261 filters the liquid.
  • the cover member 262 is integrally provided on the filter part 261.
  • the cover member 262 covers the liquid removal part 25.
  • the shape of the cover member 262 is, for example, semi-cylindrical as shown in Figures 13 and 14.
  • the foreign matter removal part 26 is embedded in the liquid removal part 25 in such a way that the liquid removal part 25 is covered by the cover member 262.
  • the foreign matter removal part 26 is fixed to the liquid tank 21 by assembling the filter part 261 on the bottom wall 211. In such a structure, the liquid after the foreign matter is removed by the filter part 261 flows into the liquid guide flow path 251 in the liquid removal part 25 arranged on the inner side of the foreign matter removal part 26.
  • the supply mechanism 30 includes a water supply unit 31, a negative pressure generating unit 32, and a housing 40.
  • the water supply unit 31 and the negative pressure generating unit 32 are connected by a connecting pipe 33.
  • the negative pressure generating unit 32 is screwed to the housing 40.
  • the water supply unit 31 is a part that supplies water from a faucet to the negative pressure generating unit 32 and the housing 40.
  • 16 is a perspective view of the water supply unit 31.
  • FIG17 is a cross-sectional perspective view taken along line XVII-XVII of FIG16.
  • the wall portions and the like constituting each flow path in the water supply unit 31 are made of, for example, resin, and the examples of the resin are the same as those in the liquid tank 21.
  • the water supply section 31 includes a water supply pipe section 311, a first pipe section 312, and a second pipe section 313.
  • the water supply pipe section 311 extends in the X direction
  • the first pipe section 312 and the second pipe section 313 extend in the Y direction.
  • An internal space S1 is formed in the water supply section 31 to connect the water supply pipe section 311, the first pipe section 312, and the second pipe section 313.
  • the internal space S1 also functions as a storage chamber for temporarily storing water.
  • the water supply part 31 is equipped with a water supply valve V1a and a water supply valve V1b.
  • a water supply valve V1a and a water supply valve V1b are opened so that the water flowing through the water supply part 31 flows to both the first pipe part 312 and the second pipe part 313.
  • the connection end of the first pipe part 312 and the internal space S1 is closed by the water supply valve V1a.
  • the connection end of the second pipe part 313 and the internal space S1 is closed by the water supply valve V1b.
  • the water supply pipe 311 and the internal space S1 constitute the water supply flow path 11.
  • the end 311a of the water supply pipe 311 is the water supply port 11a.
  • the first pipe 312 constitutes a part of the first main flow path 12A
  • the second pipe 313 constitutes a part of the second main flow path 12B.
  • the water supply section 31 is connected to the negative pressure generating section 32 by a connecting pipe 33.
  • the first tube section 312 is connected to the third tube section 321 described later by the connecting pipe 33
  • the second tube section 313 is connected to the fourth tube section 322 described later by the connecting pipe 33.
  • the connecting pipe 33 connecting the first tube section 312 and the negative pressure generating section constitutes a part of the first main flow path 12A
  • the connecting pipe 33 connecting the second tube section 313 and the negative pressure generating section constitutes a part of the second main flow path 12B.
  • the connecting pipe 33 is, for example, a rubber tube.
  • the connecting pipe 33 is a rubber tube, which makes it easy to mount the connecting pipe 33 on the upper surface plate 2b (refer to FIG1 ).
  • Figure 18 is a perspective view of the negative pressure generating unit 32.
  • Figure 19 is a cross-sectional view taken along line XIX-XIX of Figure 18.
  • Figure 20 is a cross-sectional perspective view taken along line XX-XX of Figure 18.
  • Figure 21 is a cross-sectional view taken along line XXI-XXI of Figure 18.
  • Negative pressure generating section 32 is a section for causing water flowing in from water supply section 31 to flow toward housing 40 and generating negative pressure for extracting the first liquid from first liquid container 20A and negative pressure for extracting the second liquid from second liquid container 20B.
  • Negative pressure generating section 32 includes third tube section 321, fourth tube section 322, and fifth tube section 323.
  • the third tube portion 321 extends along the Y direction.
  • the third tube portion 321 is connected to the first tube portion 312 (see FIG. 16 ) by the connecting tube 33.
  • water from the first tube portion 312 flows to the third tube portion 321.
  • the third tube portion 321 constitutes a part of the first main flow path 12A.
  • the third pipe 321 is provided with a first venturi section 15A.
  • the first venturi section 15A has a contraction section 151 in which the flow path is partially contracted and a branch path 152 cross-connected with the contraction section 151.
  • the flow path cross-sectional area of the contraction section 151 is smaller than the flow path cross-sectional areas upstream and downstream of the contraction section 151 in the flow direction of water in the third pipe 321.
  • the contraction section 151 is formed by reducing the diameter of the third pipe 321 in the scheme shown in FIG19 , the contraction section 151 can be formed as long as it can reduce the flow path cross-sectional area, and the formation method of the contraction section 151 is not limited.
  • negative pressure is generated in the branch path 152 by water flowing through the contraction section 151.
  • the speed of the water flowing through the contraction section 151 can be adjusted in a manner to generate the desired negative pressure through the Venturi effect.
  • a part of the third pipe 321 constructed as above functions as a venturi tube.
  • the entire third pipe 321 can also be called a venturi tube.
  • the fourth pipe portion 322 is along the Y direction.
  • the fourth pipe portion 322 is connected to the second pipe portion 313 by the connecting pipe 33 (refer to Figure 16).
  • the fourth pipe portion 322 constitutes a part of the second main flow path 12B.
  • the second venturi portion 15B (not shown in Figure 19) is provided in the fourth pipe portion 322.
  • the second venturi portion 15B also has a contraction portion 151 and a branch path 152. Therefore, a part of the fourth pipe portion 322 functions as a venturi tube.
  • the entire fourth pipe portion 322 can also be called a venturi tube.
  • the first venturi section 15A and the second venturi section 15B are connected by a connecting section 324 in which the treatment liquid can flow.
  • the connecting section 324 has a first portion 324a connected to the branch path 152 of the first venturi section 15A, a second portion 324b connected to the branch path 152 of the second venturi section 15B, and a third portion 324c connected to the first portion 324a and the second portion 324b along the X direction.
  • the third portion 324c connects the upper end of the first portion 324a to the upper end of the second portion 324b.
  • the connecting section 324 functions as a connecting flow path 16.
  • the third portion 324c is equipped with a flow meter for measuring the flow rate of water flowing through the connection portion 324. 17.
  • the flow meter 17 may be provided in the accommodation portion 325 provided on the third portion 324c as shown in Figs. 20 and 21.
  • an internal space S2 is formed in the negative pressure generating portion 32.
  • the internal space S2 is connected to the third tube portion 321 and the fourth tube portion 322.
  • the internal space S2 is arranged on the lower side of the third tube portion 321 and the fourth tube portion 322. The connection relationship between the third tube portion 321 and the internal space S2 is described based on Figure 19.
  • the third pipe section 321 is connected to the internal space S2 by a hole section 321a formed in the third pipe section 321.
  • the hole section 321a is formed in the third pipe section 321 upstream of the first venturi section 15A.
  • an overflow valve V4a for controlling the inflow of water from the hole section 321a is arranged at the position of the hole section 321a.
  • the overflow valve V4a is arranged such that when the water supply valve V1a is opened so that water flows through the third pipe section 321, the overflow valve V4a is also opened, and when the water supply valve V1a is closed so that water does not flow through the third pipe section 321, the overflow valve V4a is also closed. In the state where the overflow valve V4a is opened, the water flowing through the third pipe section 321 also flows into the internal space S2.
  • FIG. 19 illustrates the connection relationship between the third pipe part 321 and the internal space S2, but the connection relationship between the fourth pipe part 322 and the internal space S2 is also the same. That is, the fourth pipe part 322 and the internal space S2 are connected by a hole formed in the fourth pipe part 322. The hole is formed in the fourth pipe part 322 upstream of the second venturi part 15B. In the internal space S2, at the position of the hole formed in the fourth pipe part 322 leading to the internal space S2, an overflow valve V4b for controlling the inflow of water from the hole is arranged.
  • the overflow valve 4b is arranged such that the overflow valve 4b is also opened when the water supply valve V1b is opened so that water flows through the fourth pipe part 322, and the overflow valve 4b is also closed when the water supply valve V1b is closed so that water does not flow through the fourth pipe part 322. In the state where the overflow valve 4b is opened, the water flowing through the fourth pipe part 322 also flows into the internal space S2.
  • the fifth pipe part 323 is arranged at the downstream end of the third pipe part 321 (or the fourth pipe part 322).
  • the fifth pipe part 323 is arranged between the third pipe part 321 and the fourth pipe part 322.
  • the fifth pipe part 323 is connected to the internal space S2. Therefore, the water flowing into the internal space S2 from the third pipe part 321 and the fourth pipe part 322 flows to the fifth pipe part 323.
  • the internal space S2 and the fifth pipe part 323 constitute a part of the bypass flow path 18.
  • the above-mentioned internal space S2 also functions as a storage chamber for temporarily storing the water flowing in from the third pipe part 321 and the fourth pipe part 322.
  • FIG. 22 is a perspective view of the housing 40.
  • FIG. 23 is a perspective view of the housing 40 in a state where the top wall 45 is removed.
  • FIG. 24 is a diagram for explaining the structure of the bottom wall 41.
  • FIG. 25 is a diagram for explaining the configuration relationship between the check valve V5 provided in the first liquid container 20A and the check valve V3a provided in the sixth pipe portion 46 (first liquid removal flow path) of the housing 40.
  • FIG. 26 is an exploded perspective view of the housing 40.
  • FIG. 27 is a diagram for explaining the flow path formed on the upper surface 451 of the top wall 45.
  • FIG. 28 is a diagram for explaining the flow path formed on the back surface 441 of the rear wall 44.
  • FIG. 29 is a perspective view of the top wall 45 when viewed from the lower surface 452 side.
  • FIG. 30 is a diagram for explaining the flow of the processing liquid falling from the top wall 45 toward the bottom wall 41.
  • the housing 40 accommodates the first liquid container 20A and the second liquid container 20B.
  • the housing 40 is in the shape of a box with an open front.
  • the housing 40 has a bottom wall 41, a left side wall 42, a right side wall 43, a rear wall 44, and a top wall 45.
  • the left side wall 42 and the right side wall 43 When one of the left side wall 42 and the right side wall 43 is referred to as the first side wall, the other may be referred to as the second side wall.
  • the top wall 45 is opposed to the bottom wall 41 in the Z direction.
  • the rear wall 44 connects the bottom wall 41 to the top wall 45.
  • the left side wall 42 is opposed to the right side wall 43 in the X direction.
  • the left side wall 42 and the right side wall 43 connect the bottom wall 41, the rear wall 44, and the top wall 45.
  • the bottom wall 41, the left side wall 42, the right side wall 43, the rear wall 44, and the top wall 45 form a storage space S3 for storing the first liquid storage section 20A and the second liquid storage section 20B.
  • the bottom wall 41 includes a bottom wall body 411 and a support plate 412.
  • the rear wall 44, the left side wall 42, and the right side wall 43 are continuously erected from the bottom wall body 411 in a manner surrounding the periphery other than the front edge of the bottom wall body 411.
  • the support plate 412 is arranged on the front side of the bottom wall body 411.
  • the support plate 412 supports the front side portions of the first liquid containing part 20A and the second liquid containing part 20B.
  • the support plate 412 is connected to the bottom wall body 411 at both ends of the support plate 412 in the X direction.
  • an opening 413 is formed between the portion between the two ends of the support plate 412 and the bottom wall body 411.
  • the opening 413 is an inlet 13a for injecting the treatment liquid into the inner barrel 5b.
  • the lower portion of the support plate 412 may also be tilted toward the rear. In this case, the treatment liquid is injected toward the rear from the opening 413.
  • the region where the opening 413 is formed may also be supported by a plurality of connecting pieces 414 dispersedly arranged in the X direction.
  • the bottom wall body 411 descends from the rear wall 44 toward the front so that the processing liquid flows from the rear wall 44 toward the opening 413.
  • the bottom wall body 411 descends from the rear wall 44 toward the front in three steps.
  • the bottom wall body 411 includes a first step portion 411a connected to the rear wall 44, a second step portion 411b descending from the first step portion 411a, and a third step portion 411c further descending from the second step portion 411b.
  • the connection area between the second step portion 411b and the third step portion 411c is opposite to the corner portion of the liquid tank 21 formed by the rear wall 215 and the bottom wall 211.
  • the third step portion 411c is located below the first liquid container 20A and the second liquid container 20B when the first liquid container 20A and the second liquid container 20B are contained in the housing 40.
  • two flow path defining portions 415 defining the area through which the processing liquid flows may be formed on the bottom wall body 411.
  • One of the two flow path defining portions 415 is formed near the left side wall 42, and the other is formed near the right side wall 43.
  • the flow path defining portion 415 is formed so that the processing liquid flows toward the center of the opening 413. Thus, leakage of the processing liquid from a portion other than the opening 413 is suppressed.
  • Bases 416 that support the liquid container 20 are formed at two edges of the bottom wall body 411 in the Y direction.
  • the bases 416 function as guides when the first and second liquid containers 20A, 20B are housed in the housing 40.
  • a guide portion 421 for guiding the first liquid container 20A when the first liquid container 20A is contained in the housing 40 may be formed on the left side wall 42.
  • the guide portion 421 also functions as a support portion for supporting the first liquid container 20A.
  • a guide portion 431 for guiding the second liquid container 20B when the second liquid container 20B is contained in the housing 40 may be formed on the right side wall 43.
  • the guide portion 431 also functions as a support portion for supporting the second liquid container 20B.
  • FIG. 23 shows a scheme in which the guide portion 421 and the guide portion 431 are stepped portions formed on the left side wall 42 and the right side wall 43.
  • the sixth tube portion 46 and the seventh tube portion 47 are connected to the first liquid container 20A and the second liquid container 20B when the first liquid container 20A and the second liquid container 20B are attached to the housing 40.
  • the sixth tube portion 46 and the seventh tube portion 47 are along the X direction.
  • the front end 461 of the sixth tube portion 46 and the front end 471 of the seventh tube portion 47 are located in the housing 40.
  • the sixth tube section 46 functions as the first liquid agent extraction flow path 14A.
  • a check valve V3a is disposed in the sixth tube section 46.
  • the check valve V3a is disposed along the X direction.
  • the seventh tube section 47 functions as the second liquid agent extraction flow path 14B.
  • a check valve V3b is disposed in the seventh tube section 47.
  • the check valve V3b is disposed along the X direction.
  • the check valves V3a and V3b may be spring-type valves having a valve body and a spring (elastic member).
  • the liquid guide flow path 251 of the first liquid container 20A is connected to the sixth tube 46.
  • the sixth tube 46 is equipped with a rod-shaped member 48.
  • the rod-shaped member 48 presses the check valve V5 (refer to Figures 14 and 24) in the first part 251a of the liquid guide flow path 251 forward.
  • the check valve V5 is opened, so when the first liquid container 20A is set in the housing 40, the first liquid can flow from the first liquid container 20A to the sixth tube 46.
  • the liquid guide flow path 251 of the second liquid container 20B is connected to the seventh tube 47.
  • the seventh tube 47 is equipped with a rod-shaped member 48.
  • the rod-shaped member 48 presses the check valve V5 forward.
  • the check valve V5 is opened, and when the second liquid container 20B is disposed in the housing 40, the second liquid can flow from the second liquid container 20B to the seventh tube 47.
  • Fig. 25 The arrangement relationship between the check valve V5 in the first liquid container 20A and the check valve V3a in the sixth tube portion 46 will be described using Fig. 25.
  • components near the check valves V3a and V5 are schematically shown for the purpose of describing the arrangement relationship between the check valve V5 and the check valve V3a.
  • the check valve V3a and the check valve V5 are respectively arranged along the X direction. Therefore, the check valve V3a and the check valve V5 are arranged along one direction. In the setting state of the washing machine 1, the X direction corresponds to the horizontal direction. Therefore, the check valve V3a and the check valve V5 are arranged along the horizontal direction.
  • the housing 40 has a flow path formed therein for allowing the processing liquid from the negative pressure generating section 32, the first liquid container 20A, and the second liquid container 20B to flow to the opening 413. This flow path will be described.
  • an upper surface flow path portion 50 is disposed on the top wall 45.
  • the upper surface flow path portion 50 is provided on a portion of the upper surface 451 of the top wall 45.
  • the upper surface flow path portion 50 is box-shaped.
  • the upper surface flow path portion 50 has a peripheral wall 51 surrounding a predetermined area of the upper surface 451 and a cover 52 mounted on the peripheral wall 51.
  • the interior of the upper surface flow path portion 50 is partitioned by a partition wall 513.
  • a first upper surface flow path 501, a second upper surface flow path 502, and a third upper surface flow path 503 are formed in the upper surface flow path portion 50. and a fourth upper surface flow path 504 .
  • the first upper surface flow path 501 corresponds to a first storage area for temporarily storing the first liquid when the first liquid is taken out from the first liquid storage section 20A in the first liquid taking-out process described with reference to Fig. 6. Therefore, the upper surface flow path section 50 functions as a first liquid storage section.
  • a back flow path portion 60 is disposed on the rear wall 44.
  • the back flow path portion 60 is provided on a portion of the back surface 441 of the rear wall 44.
  • the back flow path portion 60 is box-shaped.
  • the back flow path portion 60 includes a peripheral wall 61 surrounding a predetermined area of the back surface 441 and a cover 62 mounted on the peripheral wall 61.
  • the back flow path portion 60 is partitioned by a partition wall 63, thereby forming a first back flow path 601 and a second back flow path 602.
  • the second back flow path 602 corresponds to a second storage area for temporarily storing the second liquid when the second liquid is taken out from the second liquid container 20B in the second liquid taking-out process described with reference to the drawings. Therefore, the back flow path portion 60 functions as a second liquid storage portion.
  • a check valve accommodating portion 70 is disposed near the left side wall 42 in the housing 40.
  • the check valve accommodating portion 70 includes a first valve accommodating portion 71 and a second valve accommodating portion 72 along the Z direction.
  • the first valve accommodating portion 71 is a hollow body having an upper opening, and a check valve V2a is disposed inside the first valve accommodating portion 71.
  • the check valve V2a is configured to enable the treatment liquid to flow from the lower part to the upper part in the first valve accommodating portion 71.
  • the second valve accommodating portion 72 is a hollow body having an upper opening, and a check valve V2b is disposed inside the first valve accommodating portion 71.
  • the check valve V2b is configured to enable the treatment liquid to flow from the lower part to the upper part in the second valve accommodating portion 72.
  • the check valves V2a and V2b may be, for example, float-type check valves.
  • the check valve accommodation portion 70 may include a connecting portion 73 that connects the first valve accommodation portion 71 and the second valve accommodation portion 72.
  • the connecting portion 73 connects the first valve accommodation portion 71 and the second valve accommodation portion 72 at a portion above the portion where the check valves V2a and V2b are arranged.
  • the lower end of the connecting portion 73 is closed.
  • the upper end of the connecting portion 73 is open.
  • the first upper surface flow path 501 connects the third tube portion 321 (refer to FIG. 18 ) of the negative pressure generating portion 32 to the first back flow path 601.
  • the first back flow path 601 connects the first upper surface flow path 501, the sixth tube portion 46, and the first valve accommodating portion 71.
  • the first upper surface flow path 501, the first back flow path 601, and the first valve accommodating portion 71 constitute a part of the first main flow path 12A.
  • An example of the connection relationship between the third tube portion 321, the first upper surface flow path 501, the first back flow path 601, the sixth tube portion 46, and the first valve accommodating portion 71 is described below. illustrate.
  • the first upper surface flow path 501 is connected to the third tube portion 321 by a connecting pipe 54a (refer to Figures 26, 27 and 29).
  • the connecting pipe 54a is provided near the right edge of the top wall 45.
  • the connecting pipe 54a is connected to the third tube portion 321 (refer to Figure 18) when the negative pressure generating portion 32 is fixed to the housing 40.
  • a hole portion 501a connected to the connecting pipe 54a is formed in the first upper surface flow path 501 in the top wall 45.
  • the first upper surface flow path 501 and the first back surface flow path 601 are connected by a guide tube 55a (refer to FIG. 29) formed on the top wall 45 and a guide tube 64a (refer to FIG. 28) formed on the rear wall 44.
  • the guide tube 55a extends downward from the hole 501b in the first upper surface flow path 501 formed in the top wall 45.
  • the hole 501b is formed in the top wall 45 near the rear edge.
  • the guide tube 64a is along the Z direction, the upper part of the guide tube 64a is connected to the guide tube 55a, and the lower part of the guide tube 64a is connected to the first back surface flow path 601. In the scheme shown in FIG.
  • the lower part of the guide tube 64a is located above the rear end 462 of the sixth pipe part 46 protruding backward from the back side 441 of the rear wall 44.
  • a hole 601a is formed at the position of the lower part of the guide tube 64a.
  • the first back surface flow path 601 communicates with the guide tube 64a.
  • the first top surface flow path 501 communicates with the first back surface flow path 601. Therefore, in this case, the guide tube 55a and the guide tube 64a also constitute a part of the first main flow path 12A.
  • the rear end 462 of the sixth tube portion 46 protrudes from the back surface 441 into the first back flow path 601. At least one notch may be formed at the rear end 462 to allow the first back flow path 601 to communicate with the sixth tube portion 46. With this configuration, the sixth tube portion 46 communicates with the first back flow path 601.
  • an example is shown in which the rear end 462 of the sixth tube portion 46 protrudes backward from the back surface 442, but a hole portion connected to the rear end 462 may also be formed in the rear wall 44.
  • a hole portion 601b is formed in the rear wall 44 at a position corresponding to the lower portion of the first valve accommodation portion 71.
  • the first back surface flow path 601 communicates with the first valve accommodation portion 71 through the hole portion 601b.
  • the second upper surface flow path 502 connects the seventh tube portion 47 and the second back surface flow path 602.
  • the second back surface flow path 602 connects the second upper surface flow path 502, the seventh tube portion 47, and the second valve accommodation portion 72.
  • the second upper surface flow path 502, the second back surface flow path 602, and the second valve accommodation portion 72 constitute a part of the second main flow path 12B.
  • the second upper surface flow path 502 is connected to the fourth pipe 54b by the connecting pipe 54b (see FIGS. 26, 27 and 28).
  • the connecting pipe 54b is provided near the right edge of the top wall 45.
  • the connecting pipe 54b is arranged at the rear edge of the top wall 45 closer to the top wall 45 than the connecting pipe 54a.
  • a hole portion 502b connected to the connecting pipe 54b is formed in the second upper surface flow path 502 in the top wall 45.
  • the second upper surface flow path 502 is connected to the second back surface flow path 602 by a guide tube 55b (refer to FIG. 29 ) formed on the top wall 45 and a guide tube 64b (refer to FIG. 23 and FIG. 28 ) formed on the rear wall 44.
  • the guide tube 55b extends downward from a hole portion 502b (refer to FIG. 27 ) in the second upper surface flow path 502 formed in the top wall 45.
  • the hole portion 502b is formed in the top wall 45 near the corner portion formed by the rear edge portion and the right side edge portion.
  • the guide tube 64b has an opening connected to the guide tube 55b, and the portion opposite to the opening is closed. Therefore, the guide tube 64b is in the shape of a bottomed tube.
  • a hole portion 602b is formed in the rear wall 44 near the bottom of the guide tube 64b (refer to FIG. 28 ).
  • the guide tube 64b is connected to the second back surface flow path 602 through the hole portion 602b.
  • the second upper surface flow path 502 is connected to the second back surface flow path 602.
  • the rear end 472 of the seventh tube portion 47 protrudes from the back surface 442 into the second back flow path 602. At least one notch may be formed at the rear end 472 to allow the second back flow path 602 to communicate with the seventh tube portion 47. With this configuration, the seventh tube portion 47 communicates with the second back flow path 602.
  • an example is shown in which the rear end 472 protrudes backward from the back surface 442, but a hole portion connected to the rear end 472 may also be formed in the rear wall 44.
  • a hole portion 602b is formed in the rear wall 44 at a position corresponding to the lower portion of the second valve accommodation portion 72.
  • the second back surface flow path 602 communicates with the second valve accommodation portion 72 through the hole portion 602b.
  • the third upper surface flow path 503 connects the fifth pipe portion 323 (see FIG. 18 ) and the storage space S3 in the housing 40 .
  • the third upper surface flow path 503 constitutes a part of the bypass flow path 18 .
  • the third upper surface flow path 503 is connected to the fifth tube portion 323 by a connecting pipe 54c (refer to Figures 26, 27 and 29).
  • the connecting pipe 54c is arranged near the right edge of the top wall 45.
  • the connecting pipe 54c is arranged between the connecting pipe 54a and the connecting pipe 54b.
  • a hole portion 503a (refer to Figure 27) connected to the connecting pipe 54c is formed in the third upper surface flow path 503 in the top wall 45.
  • At least one hole portion 503b is formed in the third upper surface flow path 503.
  • three hole portions 503b are formed in the top wall 45.
  • the hole portion 503b is located on the first step portion 411a of the bottom wall 41.
  • the third upper surface flow path 503 is connected to the storage space S3 in the shell 40, so the processing liquid flowing through the third upper surface flow path 503 flows into the shell 40 from the hole portion 503b.
  • the fourth upper surface flow path 504 is formed along the rear edge of the top wall 45.
  • the fourth upper surface flow path 504 connects the check valve accommodation portion 70 and the accommodation space S3 in the housing 40.
  • the fourth upper surface flow path 504 constitutes a part of the input flow path 13 (a second part of the input flow path 13).
  • three holes 504a1, 504a2, 504a3 and a hole 504b are formed in the fourth upper surface flow path 504 in the top wall 45.
  • the holes 504a1, 504a2, 504a3 are connected to the upper openings of the first valve accommodating portion 71, the connecting portion 73 and the second valve accommodating portion 72.
  • the fourth upper surface flow path 504 is connected to the check valve accommodating portion 70.
  • a guide tube 55d may also be formed at the lower part of the holes 504a1, 504a2, 504a3 (refer to FIG. 29 ).
  • the guide tube 55d is connected to the upper openings of the first valve accommodating portion 71, the connecting portion 73 and the second valve accommodating portion 72, thereby the holes 504a1, 504a2, 504a3 are connected to the first valve accommodating portion 71, the connecting portion 73 and the second valve accommodating portion 72.
  • the hole 504b penetrates the top wall 45. Therefore, the fourth upper surface flow path 504 is connected to the storage space S3 via the hole portion 504b, so the processing liquid flowing through the fourth upper surface flow path 504 falls from the hole portion 504b into the housing 40.
  • a guide cylinder 56 (see Figure 29) may also be formed at the lower part of the hole portion 504b. Thus, the processing liquid easily falls from the hole portion 504b directly below.
  • the treatment liquid flows into the housing 40 from the hole portion 503b formed in the third upper surface flow path 503 and the hole portion 504b formed in the fourth upper surface flow path 504.
  • the treatment liquid that flows in like this flows along the bottom wall 41 (specifically, the bottom wall body 411) of the housing 40 as shown by the arrow in FIG. 30, and then is poured into the inner barrel 5b from the opening 413.
  • a space (falling area) S3a is formed between each of the first liquid container 20A and the second liquid container 20B and the rear wall 44.
  • the treatment liquid falls from the top wall 45 toward the bottom wall 41 in the space S3a. Therefore, the space S3a constitutes a part of the input flow path 13.
  • the space S3a (particularly the area below the holes 503b and 504b) functions as a falling area for the treatment liquid to fall in the input flow path 13.
  • the lower surface 211 a of the first liquid container 20A and the lower surface 211 a of the second liquid container 20B The lower surface 211a faces the bottom wall 41, and a space S3b is generated between the lower surface 211a and the bottom wall 41. Therefore, the treatment liquid flowing into the storage space S3 from the top wall 45 flows toward the opening 413 in the space S3b. Therefore, the space S3b between the first liquid storage part 20A and the second liquid storage part 20B and the rear wall 44 and the bottom wall 41 of the housing 40 functions as a part (first part) of the injection flow path of the treatment liquid.
  • the above-mentioned lower surface 211a is the outer surface of the bottom wall 211 of the liquid tank 21.
  • the first rectifying portion 81 and the second rectifying portion 82 are arranged on the first step portion 411a of the bottom wall body 411.
  • the first rectifying portion 81 is arranged below the hole portion 504b
  • the second rectifying portion 82 is arranged below the hole portion 503b.
  • the first rectifying portion 81 and the second rectifying portion 82 are portions for suppressing the bubbling of the processing liquid due to splashing caused by the falling processing liquid colliding with the first step portion 411 a .
  • the first rectifying section 81 has a plurality of rectifying plates 811.
  • the plurality of rectifying plates 811 are arranged in parallel in the Y direction.
  • the second rectifying section 82 has a plurality of rectifying plates 821.
  • the plurality of rectifying plates 821 are arranged in parallel in the Y direction.
  • the interval between two adjacent rectifying plates 811 among the plurality of rectifying plates 811 is set to an interval that can suppress the splashing of the falling processing liquid, etc.
  • the interval between two adjacent rectifying plates 821 among the plurality of rectifying plates 821 is set to an interval that can suppress the splashing of the falling processing liquid, etc.
  • Each rectifying plate 811 and each rectifying plate 821 are integrally formed on the bottom wall 41 and the rear wall 44.
  • Each rectifying plate 811 and each rectifying plate 821 also function as a rib.
  • An example of the material of each rectifying plate 811 and each rectifying plate 821 is resin.
  • the water supply valves V1a and V1b are opened, whereby water flows from the water supply pipe section 311 to both the first pipe section 312 and the second pipe section 313 .
  • the first pipe part 312 is connected to the third pipe part 321
  • the second pipe part 313 is connected to the fourth pipe part 322 . Therefore, water flowing from the water supply pipe part 311 into the first pipe part 312 and the second pipe part 313 flows to the third pipe part 321 and the fourth pipe part 322 .
  • the third pipe portion 321 communicates with the first upper surface flow path 501 via the connecting pipe 54a and the hole portion 501a (see FIG. 27 ). Therefore, water flowing into the third pipe portion 321 flows into the first upper surface flow path 501 .
  • the fourth pipe portion 322 is connected to the second upper surface flow path 502 by the connecting pipe 54b and the hole portion 502a (see FIG. 27). Therefore, the water flowing into the fourth pipe portion 322 will flow into the second upper surface flow path 502 .
  • the overflow valve V4a and the overflow valve V4b are opened. Therefore, a part of the water flowing through the third pipe section 321 flows into the fifth pipe section 323 via the internal space S1. Similarly, a part of the water flowing through the fourth pipe section 322 flows into the fifth pipe section 323 via the internal space S1.
  • the fifth pipe section 323 is connected to the third upper surface flow path 503 by the connecting pipe 54c and the hole section 503a (refer to Figure 27). Therefore, the water flowing into the fifth pipe section 323 flows into the third upper surface flow path 503.
  • the water flowing into the first upper surface flow path 501 from the third pipe portion 321 flows from the hole portion 501a toward the hole portion 501b as shown by the solid arrow in FIG27.
  • the water flowing into the hole portion 501b flows into the first back surface flow path 601 through the hole portion 501b.
  • the water flowing into the first back surface flow path 601 flows toward the hole portion 601b as shown by the solid arrow in FIG28.
  • the hole portion 601b is connected to the first valve accommodating portion 71. Therefore, the water flowing into the hole portion 601b flows into the first valve accommodating portion 71.
  • the water flowing into the second upper surface flow path 502 from the fourth pipe portion 322 flows from the hole portion 502a to the hole portion 502b.
  • the water flowing into the hole portion 502b flows into the second back surface flow path 602 through the hole portion 502b.
  • the water flowing into the second back surface flow path 602 flows toward the hole portion 602b.
  • the hole portion 602b is connected to the second valve accommodating portion 72. Therefore, the water flowing into the hole portion 602b will flow into the second valve accommodating portion 72.
  • the water flowing into the third upper surface flow path 503 from the fifth tube portion 323 flows from the hole portion 503 a to the hole portion 503 b , and then flows into the storage space S3 from the hole portion 503 b .
  • the check valve V2a When water flows from the first back flow path 601 into the first valve housing 71, the check valve V2a The check valve V2b is opened by water pressure. As a result, water flows from the lower part to the upper part of the first valve accommodating part 71, and the water flows into the fourth upper surface flow path 504 through the upper opening of the first valve accommodating part 71 and the hole 504a1. Similarly, when water flows into the second valve accommodating part 72 from the second back flow path 602, the check valve V2b is opened by water pressure. As a result, water flows from the lower part to the upper part of the second valve accommodating part 72, and the water flows into the fourth upper surface flow path 504 through the upper opening of the second valve accommodating part 72 and the hole 504a2.
  • the first valve accommodating part 71 and the second valve accommodating part 72 are connected by the connecting part 73. Therefore, when water flows from the lower part to the upper part in the first valve accommodating part 71 and the second valve accommodating part 72, the water also flows into the connecting part 73.
  • the water in the connecting part 73 flows into the fourth upper surface flow path 504 through the holes 504a1, 504a2, and 504a3.
  • the water supply valves V1a and V1b are closed, so that the flow path through which water flows during the water supply process is kept filled with water.
  • first back flow path 601 water flows toward the first top flow path 501, so the check valve V3a opens.
  • the first liquid in the first liquid container 20A flows into the first back flow path 601 through the sixth tube 46.
  • the first liquid that has flowed into the first back flow path 601 flows into the first top flow path 501. 501.
  • the first liquid agent is filled in the first upper surface flow path 501.
  • both water supply valves V1a and V1b are opened.
  • the first liquid injected during the first liquid injection process is the first liquid filled in the first upper surface flow path 501 during the first liquid extraction process. Therefore, the flow path of the first liquid from the sixth tube portion 46 to the first venturi portion 15A has a length that allows the first liquid to be injected to be fully extracted. For example, as shown in the figure, by forming the first upper surface flow path 501 that turns back multiple times, the first liquid to be injected can be fully extracted.
  • the second back flow path 602 water flows toward the second upper flow path 502, so the check valve V3b opens.
  • the second liquid in the second liquid container 20B flows into the second back flow path 602 through the seventh tube 47.
  • the second back flow path 602 is filled with the second liquid.
  • both water supply valves V1a and V1b are opened.
  • the second back flow path 602 has a length that can fully take out the second liquid agent to be put in. For example, as shown in FIG28, by forming the second back flow path 602 that turns back multiple times, the amount of the second liquid agent to be put in can be ensured.
  • an opening 413 (injection port 13b) for injecting the treatment liquid into the inner barrel 5b is formed on the bottom wall 41 of the housing 40.
  • the lower surfaces 211a of the first liquid container 20A and the second liquid container 20B face the bottom wall body 411.
  • the space S3b between the lower surfaces 211a of the first liquid container 20A and the second liquid container 20B and the bottom wall 41 functions as a lower flow path (a part of the injection flow path 13 in this embodiment) for allowing the treatment liquid to flow to the above-mentioned opening 413.
  • a fourth upper surface flow path 504 (upper flow path) is formed on the top wall 45 of the outer shell 40, so that the treated water flowing through the fourth upper surface flow path 504 flows to the above-mentioned lower flow path through the hole portion 504b and falls toward the bottom wall 41.
  • a first rectifying portion 81 is disposed below the hole 504b in the bottom wall 41.
  • the first rectifying portion 81 has a plurality of rectifying plates 811 disposed in parallel. Therefore, the processing liquid falling from the hole 504b will fall between the adjacent rectifying plates 811. In this case, compared with a case where the rectifying plates 811 are not disposed, the splashing of the processing liquid is suppressed, so that the processing liquid is not easy to bubble. As a result, the flow of the processing liquid is not easily blocked downstream of the first rectifying portion 81.
  • the flow of the processing liquid is not easily blocked, thereby suppressing the accumulation of the processing liquid in the storage space S3. Therefore, leakage from the housing 40 and mixing of the processing liquid into the first liquid storage section 20A and the second liquid storage section 20B can be prevented.
  • the hole portion 504b is formed near the rear wall 44, and the length between the portion of the lower surface 211a near the rear wall 44 and the bottom wall 41 (specifically, the bottom wall body 411) is shorter than the length between the rear wall 44 and the first liquid storage portion 20A (or the second liquid storage portion 20B).
  • the space S3a which is the falling area for the treatment liquid to fall, is larger than the inlet side of the lower flow path formed by the space S3b. Therefore, the treatment liquid falling from the hole portion 504b will pass through the area with a small flow path cross-sectional area (the area where the flow path shrinks) when flowing to the opening 413.
  • the above-mentioned structure with the first rectifying section 81 is effective. This is explained in a manner of comparison with the case where the first rectifying section 81 is not configured.
  • the treatment liquid that flows toward the opening 413 after falling from the hole portion 504b passes through an area with a small flow path cross-sectional area, the treatment liquid will be retained in front of the area (e.g., space S3a). If the treatment liquid bubbles, the flow of the treatment liquid is easily hindered in the area with a small flow path cross-sectional area, so that more treatment liquid is easily retained. Therefore, as described above, leakage of liquid or mixing of the treatment liquid into the first liquid container 20a and the second liquid container 20B may occur.
  • the bubbling of the processing liquid is suppressed by the first rectifying section 81. Since the bubbling of the processing liquid is suppressed, the flow of the processing liquid is not easily hindered, so the retention of the processing liquid can be suppressed. As a result, liquid leakage and mixing of the processing liquid into the first liquid container 20a and the second liquid container 20B can be prevented.
  • the first liquid container 20A and the second liquid container 20B are arranged in the housing 40 by sliding backward, and the bottom wall 41 has an area that descends toward the opening 413.
  • the flow path of the treatment liquid is once narrowed between the corner behind the lower part of the first liquid container 20A and the second liquid container 20B and the bottom wall body 411. That is, in the scheme shown in FIG. 30 , the treatment liquid falling from the hole 504b will pass through the area where the flow path is contracted (the area with a small cross-sectional area of the flow path) when flowing toward the opening 413. Therefore, the structure with the first rectifying portion 81 is more effective when the first liquid container 20A and the second liquid container 20B are arranged in the housing 40 by sliding backward and the bottom wall 41 has an area that descends toward the opening 413.
  • the treatment liquid input device 10 When the treatment liquid input device 10 is provided with a bypass flow path 18, the treatment liquid (water) will also fall from the hole portion 503b to the bottom wall 41.
  • a second rectifying portion 82 is arranged at the falling point of the treatment liquid from the hole portion 503b.
  • the effect related to the second rectifying portion 82 is the same as that of the first rectifying portion 81. That is, the treatment liquid passing through the hole portion 503b falls toward the second rectifying portion 82.
  • splashing when falling is suppressed, so that the treatment liquid is not easy to bubble.
  • the space S3b between the lower surface 211a and the bottom wall 41 is effectively utilized as a lower flow path for allowing the treatment liquid to flow to the opening 413. Therefore, for example, there is no need for a water injection hose for injecting the treatment liquid, so that the treatment liquid injection device 10 can be space-saving.
  • a partition wall is not provided to separate the storage space accommodating the first liquid storage section 20A and the second liquid storage section 20B from the bottom wall 41.
  • the bottom wall 41 itself constitutes the bottom of the storage space S3. Therefore, the lower surface 211a faces the bottom wall 41 (specifically, the bottom wall body 411).
  • the partition wall is not provided in the washing machine 10, so compared with the case where the storage space is formed by the partition wall, space saving can be achieved.
  • space saving of the treatment liquid input device 10 can be achieved, the capacity of the inner drum 5b in the washing machine 1 can be increased.
  • the size of the washing machine 1 can be miniaturized while maintaining the capacity of the inner drum 5b.
  • the first liquid containing section 20A and the second liquid containing section 20B can be contained in the containing space S3 by, for example, sliding the first liquid containing section 20A and the second liquid containing section 20B from the front surface of the shell 40 toward the rear wall 44.
  • the first liquid container 20A can be attached to and detached from the sixth tube portion 46 by sliding the first liquid container 20A relative to the housing 40. Specifically, by sliding the first liquid container 20A from the front surface of the housing 40 to the rear, the liquid guide flow path 251 included in the first liquid container 20A can be connected to the sixth tube portion 46. Conversely, by sliding the first liquid container 20A to the front, the connection between the liquid guide flow path 251 included in the first liquid container 20A and the sixth tube portion 46 can be released, and the first liquid container 20A can be removed from the housing 40. Therefore, the first liquid container 20A can be easily installed in the housing 40 and removed from the housing 40.
  • the second liquid container 20B can be attached to and detached from the seventh tube portion 47 by sliding the first liquid container 20A relative to the housing 40.
  • the second liquid container 20B can be connected to the seventh tube portion 47 by sliding the second liquid container 20B from the front surface of the housing 40 to the rear.
  • the second liquid container 20B can be disconnected from the seventh tube portion 47 by sliding the second liquid container 20B forward, and the second liquid container 20B can be removed from the housing 40. Therefore, the first liquid container 20A can be easily installed in the housing 40 and removed from the housing 40.
  • the space S3b between the lower surface 211a of the first liquid container 20A and the second liquid container 20B and the bottom wall 41 is the lower flow path of the treatment liquid. Therefore, even if the first liquid container 20A is removed from the housing 40, for example, the first liquid remaining between the check valve V5 in the first liquid container 20A and the check valve V3a in the sixth pipe 46 drips onto the bottom wall 41, the first liquid container 20A is removed from the housing 40. 41, the first liquid attached to the bottom wall 41 will also be washed away when, for example, water is added as a treatment liquid into the inner barrel 5b.
  • the second liquid remaining between the check valve V5 in the second liquid containing part 20B and the check valve V3b in the seventh pipe part 47 drips onto the bottom wall 41 when the second liquid containing part 20B is removed from the outer shell 40
  • the second liquid attached to the bottom wall 41 will also be washed away when, for example, water is added as a treatment liquid into the inner barrel 5b. Therefore, the first liquid and the second liquid are prevented from remaining on the bottom wall 41 and solidifying.
  • the outer shell 40 can be easily maintained.
  • one of the first liquid agent or the second liquid agent is a detergent
  • the detergent adheres to the bottom wall 41 of the housing 40 and is left unattended it will become a major cause of the generation of bacteria, mold, and odor.
  • the space S3b between the lower surface of the first liquid agent storage part 20A and the second liquid agent storage part 20B and the bottom wall 41 functions as a lower flow path (a part of the input flow path 13 in this embodiment) for the treatment liquid to flow through, the detergent adhered to the bottom wall 41 will be washed away during each washing. Therefore, the generation of bacteria, mold, and odor can be suppressed.
  • a fourth upper surface flow path 504 (upper flow path) is formed on the top wall 45, so that the treated water flowing through the fourth upper surface flow path 504 falls toward the bottom wall 41 through the hole portion 504b.
  • the hole portion 504b is formed in the top wall 45 near the rear wall 44, so the treatment liquid falling to the bottom wall 41 will flow from the rear wall 44 to the opening 413. Therefore, as described above, even if the first liquid agent or the second liquid agent is attached to the bottom wall 41, it is easy to make the attached first liquid agent or the second liquid agent flow to the opening 413.
  • the third upper surface flow path 503 is also a top wall flow path formed on the top wall 45.
  • the water (treatment liquid) flowing through the third upper surface flow path 503 also falls to the bottom wall 41 through the hole portion 503b. Therefore, the first liquid or the second liquid adhering to the bottom wall 41 can also be made to flow by the water falling from the third upper surface flow path 503 through the hole portion 503 b .
  • the treatment liquid injection device 10 includes the bypass flow path 18. Therefore, it is possible to suppress abnormal noise in the first venturi section 15A and the second venturi section 15B. This point will be described in comparison with a case where the bypass flow path 18 is not provided.
  • a certain amount of water (for example, 15 liters) is poured into the inner tub 5b to wash clothes and the like.
  • the water to be poured into the inner tub 5b flows through the first main channel 12A and the second main channel 12B.
  • the first main channel 12A and the second main channel 12B are provided with a first venturi section 15A and a second venturi section 15B. In the first venturi section 15A and the second venturi section 15B, the flow path is contracted.
  • the treatment liquid injection device 10 is provided with a bypass flow path 18.
  • the bypass flow path 18 branches from the first main flow path 12A and the second main flow path 12B upstream of the first venturi section 15A and the second venturi section 15B and is connected to the injection flow path 13. Therefore, a portion of the water flowing through the first main flow path 12A and the second main flow path 12B bypasses the first venturi section 15A and the second venturi section 15B (in other words, the negative pressure generating unit U2 shown in FIG. 4) and flows into the injection flow path 13, and then is injected into the inner barrel 5b.
  • the amount of water used to be injected into the inner barrel 5b can be ensured while reducing the amount of water flowing through the first venturi section 15A and the second venturi section 15B. Since the amount of water flowing through the first venturi section 15A and the second venturi section 15B can be reduced, the generation of abnormal noise in the first venturi section 15A and the second venturi section 15B can be suppressed.
  • the treatment liquid injecting device 10 can increase the amount of water flowing from the water supply flow path 11 to the first main flow path 12A and the second main flow path 12B while suppressing the generation of abnormal noise. Therefore, the time for storing water in the inner tub 5b can be shortened, thereby shortening the time required for washing.
  • the flow of water to the first main flow path 12A and the second main flow path 12B under the control of the water supply valves V1a and V1b can be controlled.
  • the generation of negative pressure in the first venturi section 15A and the second venturi section 15B can be controlled, so that as shown in the example, the first liquid agent can be taken out and the second liquid agent can be taken out.
  • the first liquid can be removed from the first liquid storage portion 20A while preventing water from flowing from the first liquid removal flow path 14A into the first liquid storage portion 20A
  • the second liquid can be removed from the second liquid storage portion 20B while preventing water from flowing from the second liquid removal flow path 14B into the second liquid storage portion 20B.
  • the first liquid is removed from the first liquid storage section 20A into the first main flow path 12A.
  • the second liquid removal process described with reference to FIG8 the second liquid is removed from the second liquid storage section 20B into the second main flow path 12B. Therefore, the first main flow path 12A and the second main flow path 12B need to be long enough to remove the first liquid and the second liquid material in an amount necessary for washing and temporarily store them therein.
  • the first upper surface flow path 501 formed on the upper surface 451 of the top wall 45 is a first storage area for temporarily storing the first liquid taken out from the first liquid storage section 20A
  • the second rear surface flow path 602 formed on the rear surface 441 of the rear wall 44 is a second storage area for temporarily storing the second liquid taken out from the second liquid storage section 20B. That is, in the treatment liquid injection device 10 of the present embodiment, the first storage area for the taken out first liquid and the second storage area for the taken out second liquid are arranged on two different surfaces among the plurality of surfaces of the housing 40.
  • the size of the housing 40 can be reduced compared to the case where the first storage area and the second storage area are arranged on the same surface (for example, the upper surface 451 of the ceiling wall 45). As a result, a compact processing liquid input device 10 can be realized.
  • the back surface 441 is generally considered as a dead space. Therefore, in the scheme where one of the first storage area and the second storage area is arranged on the back surface 441, the dead space can be effectively utilized and the size of the housing 40 can be reduced.
  • the distance between the check valve V5 and the check valve V3a can be shortened compared to, for example, a case in which the arrangement direction of the check valve V5 and the arrangement direction of the check valve V3a intersect.
  • An example of a case in which the arrangement direction of the check valve V5 and the arrangement direction of the check valve V3a intersect is a case in which the check valve V5 is arranged in the X direction and the check valve V3a is arranged in the Z direction.
  • the first liquid When the first liquid is taken out from the first liquid container 20A, the first liquid remains in the area between the check valve V5 and the check valve V3a. Therefore, even if the first liquid drops onto the bottom wall 41 when the first liquid container 20A is removed from the housing 40, the amount of the first liquid adhering to the bottom wall 41 can be reduced. As a result, the workload of the maintenance of the housing 40 can be reduced.
  • the support plate 412 constituting a part of the bottom wall 41 forms an opening 413.
  • the treatment liquid is fed into the inner barrel 5b from the opening 413 (inlet 13b) toward the rear.
  • the treatment liquid is fed into the inner circumferential surface side of the inner barrel 5b.
  • the number of liquid container sections provided in the process liquid feeding device may be one.
  • An example of a process liquid feeding device in which the number of liquid container sections is one will be described as a modified example.
  • Fig. 31 is a diagram showing a schematic configuration of a process liquid feeding device 10A of a modified example.
  • the treatment liquid injection device 10A includes a liquid container 20.
  • the treatment liquid injection device 10A includes a supply mechanism that takes out the liquid from the liquid container 20 and supplies it to the inner barrel 5b as the treatment liquid together with water.
  • the supply mechanism includes a housing that contains the liquid container 20.
  • the supply mechanism and the housing of the modified example are also referred to as a supply mechanism 30 and a housing 40.
  • the same reference numerals are given to the same elements as those in the above-mentioned embodiment, and repeated descriptions are omitted.
  • the supply mechanism 30 of the treatment liquid injection device 10A includes a water supply flow path 11, a main flow path (intermediate flow path) 12, and an injection flow path 13.
  • the main flow path 12 connects the water supply flow path 11 and the injection flow path 13.
  • the supply mechanism 30 includes a water supply valve V1 for controlling the flow of water from the water supply flow path 11 to the main flow path 12.
  • the flow path 12 is provided with a venturi section 15.
  • the supply mechanism 30 is provided with a liquid agent extraction flow path 14 connected to the liquid agent storage section 20 and used to extract the liquid in the liquid agent storage section 20.
  • the liquid agent extraction flow path 14 is connected to the venturi section 15.
  • a flow meter 17 may also be provided in the connecting flow path 19.
  • FIG. 31 shows an example of a scheme in which the liquid agent extraction flow path 14 and the venturi section 15 are connected via the connecting flow path 19, but the connecting flow path 19 shown in FIG. 31 may also be a part of the liquid agent extraction flow path 14.
  • the main flow path 12 and the injection flow path 13 are also connected by the bypass flow path 18 bypassing the venturi section 15.
  • the bypass flow path 18 is connected to the main flow path 12 upstream of the venturi section 15 in the main flow path 12.
  • the bypass flow path 18 is provided with a relief valve V4 for controlling the flow of water from the main flow path 12.
  • the treatment liquid injection device 10A has a bypass flow path 18.
  • the overflow valve V4 is opened. Therefore, part of the water flowing from the water supply flow path 11 into the main flow path 12 passes through the bypass flow path 18 and bypasses the venturi portion 15 to flow into the injection flow path 13.
  • the downstream side of the main flow path 12 or the upstream side of the injection flow path 13 is set as the upper flow path formed on the top wall 45 of the housing 40, and the downstream side (injection port 13a side) of the injection flow path 13 is set as the lower flow path between the liquid container 20 and the bottom wall 41, so that the treatment liquid flows from the upper flow path to the lower flow path, and the treatment liquid is made to fall from the top wall 45 toward the bottom wall 41.
  • the first rectifying part 81 is also arranged at the falling position of the treatment liquid. As a result, the treatment liquid injection device 10A also suppresses the bubbling of the treatment liquid accompanying the falling, so it is not easy to hinder the flow of the treatment liquid.
  • a portion of the water flowing from the water supply flow path 11 into the main flow path 12 also passes through the bypass flow path 18 and bypasses the Venturi section 15 to flow into the injection flow path 13. Therefore, the amount of water flowing through the Venturi section 15 can be reduced while ensuring the amount of water for injection into the inner barrel 5b. Since the amount of water flowing through the Venturi section 15 can be reduced, the generation of abnormal noise in the Venturi section can be suppressed.
  • a portion of the bypass flow path 18 can also be formed on the top wall 45. In this case, the area of the bypass flow path 18 formed on the top wall 45 functions as an upper flow path. In the case of causing water (treatment liquid) to fall from the upper flow path that is a portion of the bypass flow path 18 to the bottom wall 41, a portion of the upper flow path 45 can be configured at the falling position.
  • the second rectifying unit 82 .
  • the supply mechanism only needs to have a flow path that can take out the liquid from the liquid container and allow the processing liquid to flow, and a part of the flow path has an area for the processing liquid to fall from top to bottom.
  • the supply mechanism does not need to have a bypass flow path.
  • An example of a supply mechanism may include: a water supply passage having a water supply port for supplying water, for flowing water supplied through the water supply port; a liquid agent extraction passage for extracting liquid from a liquid agent storage portion; an injection passage having an injection port for injecting a treatment liquid into a washing tub; and an intermediate passage for causing a treatment liquid including water flowing through the water supply passage and liquid extracted by the liquid agent extraction passage to flow to the injection passage.
  • the downstream side of the intermediate passage or the upstream side of the injection passage may be set as the upper passage, and the space between the lower surface of the liquid agent storage portion described in the above embodiment and the bottom wall of the housing may be set as the lower passage (a part of the injection passage).
  • an example of the supply mechanism may include two of the above-mentioned intermediate flow paths and two of the above-mentioned liquid removal flow paths.
  • one of the two above-mentioned liquid removal flow paths may be a first liquid removal flow path for removing the above-mentioned first liquid
  • the other may be a second liquid removal flow path for removing the above-mentioned second liquid
  • one of the two above-mentioned intermediate flow paths may be a first intermediate flow path for allowing the above-mentioned water flowing through the above-mentioned water supply flow path and the above-mentioned first liquid removed from the above-mentioned first liquid removal flow path to flow toward the above-mentioned injection flow path
  • the other may be a second intermediate flow path for allowing the above-mentioned water flowing through the above-mentioned water supply flow path and the above-mentioned second liquid removed from the above-mentioned second liquid removal flow path to flow toward the above-mentioned injection flow path.
  • downstream side of the first intermediate flow path and the second intermediate flow path can be set as the upper flow path or the upstream side of the injection flow path can be set as the upper flow path, and the space between the lower surface of the liquid holding portion described in the above embodiment and the bottom wall of the outer shell can be set as the lower flow path (part of the injection flow path).
  • the supply mechanism may also have a water supply valve for controlling the flow of water from the water supply flow path to the first intermediate flow path and the second intermediate flow path.
  • a flow path switching unit switches the flow of the treatment fluid from the first intermediate flow path and the second intermediate flow path to the input flow path.
  • the number of liquid agent storage sections may be three or more.
  • the element functioning as the water supply section and the negative pressure generating section may be integrally provided in the housing.
  • a treatment liquid feeding device comprising:
  • the supply mechanism supplies the liquid contained in the liquid containing portion together with water as a treatment liquid to the washing tub,
  • the supply mechanism comprises:
  • the flow path has a falling area for the treatment liquid flowing through the flow path to fall from top to bottom
  • the flow path has a portion where the flow path is narrowed downstream of the falling area
  • the rectifying portion is disposed at a falling location of the treatment liquid in the falling area
  • the rectifying portion includes a plurality of rectifying plates arranged in parallel.
  • the supply mechanism comprises: a housing having a storage space for storing the liquid agent storage portion,
  • the housing has:
  • a first side wall connecting the bottom wall, the top wall and the rear wall;
  • a second side wall connects the bottom wall, the top wall and the rear wall and is opposite to the first side wall.
  • the accommodating space is formed by the bottom wall, the top wall, the rear wall, the first side wall and the second side wall.
  • the bottom wall is provided with an inlet for injecting the treatment liquid into the washing tub.
  • the lower surface of the liquid agent storage portion faces the bottom wall
  • the space between the lower surface and the bottom wall is a flow path for the treatment liquid to flow toward the inlet.
  • the flow path has:
  • the lower flow path is formed by the space between the lower surface of the liquid containing part and the bottom wall,
  • the top wall is provided with a hole for allowing the treatment liquid flowing through the upper flow path to flow toward the lower flow path by falling toward the bottom wall.
  • the rectifying portion is disposed below the hole portion in the bottom wall.
  • the hole is formed in the top wall near the rear wall
  • a length between a portion of the lower surface close to the rear wall and the bottom wall is shorter than a length between the rear wall and the liquid container.
  • a washing machine comprising:
  • the treatment liquid feeding device as described in any one of [1] to [3].

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)

Abstract

提供一种即使处理液的流路中存在使处理液从上向下落下的区域在处理液落下之后也不易阻碍处理液的流动的处理液投入装置和具备该处理液投入装置的洗衣机。一个实施方式的处理液投入装置具备：液剂容纳部（20）；以及供给机构（30），将容纳于液剂容纳部（20）的液剂与水一起作为处理液供给至洗涤桶（5b）。供给机构具有：流路，供处理液流过；以及整流部（81，82），流路具有供流过流路的处理液从上向下落下的落下区域，流路在落下区域的下游具有流路收缩的部分，整流部配置于落下区域中处理液的落下地点，整流部具有并列配置的多个整流板。

Description

处理液投入装置和洗衣机 技术领域
本公开涉及处理液投入装置和洗衣机。
背景技术
近年来，出售有具备处理液投入装置的洗衣机。上述处理液投入装置的例子是专利文献1所公开的装置。在专利文献1所公开的装置中，利用负压管来吸引蓄于液体储存盒的洗涤剂(液剂)并将其与水混合而作为处理液供给至洗涤桶。
在专利文献1所记载的处理液投入装置中，在容纳液体储存盒的外壳的顶壁上表面形成有流路。处理液投入装置通常配置于洗涤桶的上方，因此为了向洗涤桶投入处理液，需要使流经顶壁上表面的流路的处理液流向下侧的流路。作为使顶壁上表面的处理液流向下侧的流路的方法，例如可以考虑使处理液在外壳内落下。在该情况下，由于处理液在落下地点处的迸溅，处理液容易起泡。根据处理液的起泡状态，可能会阻碍处理液的流动。
现有技术文献
专利文献
专利文献1：国际公开第2020/113954号
发明内容
发明所要解决的问题
本公开的目的在于提供一种即使处理液的流路中存在使处理液从上向下落下的区域，也不易在处理液落下之后阻碍处理液的流动的处理液投入装置和具备上述处理液投入装置的洗衣机。
用于解决问题的方案
本公开的一个方面的处理液投入装置具备：液剂容纳部；以及供给机构，将容纳于上述液剂容纳部的液剂与水一起作为处理液供给至洗涤桶，上述供给机构具有：流路，供上述处理液流过；以及整流部，上述流路具有供流过上述流路的上述处理液落下的落下区域，上述整流部配置于上述落下区域中上述处理液的落下地点，上述整流部具有并列配置的多个整流板。
在上述处理液投入装置中，供处理液流过的流路具有上述落下区域。上述整流部配置于处理液的落下地点。整流部由并列配置的多个整流板构成，因此处理液会向邻接的整流板之间落下。与未设置整流部的情况相比，该构成会抑制处理液落下的情况下的迸溅，因此处理液不易起泡。因此，即使处理液在落下区域落下之后，也不易阻碍处理液的流动。
也可以是，上述供给机构具有：外壳，形成有容纳上述液剂容纳部的容纳空间，上述外壳具有：底壁；顶壁，与上述底壁对置；后壁，使上述底壁与上述顶壁相连；第一侧壁，使上述底壁、上述顶壁以及上述后壁相连；以及第二侧壁，使上述底壁、上述顶壁以及上述后壁相连，并与上述第一侧壁对置，上述容纳空间由上述底壁、上述顶壁、上述后壁、上述第一侧壁以及上述第二侧壁形成，在上述底壁形成有用于将上述处理液投入至上述洗涤桶的投入口，上述流路具有：上部流路，形成于上述顶壁；以及下部流路，由上述液剂容纳部的下表面与上述底壁之间的空间构成，在上述顶壁形成有用于使流过上述上部流路的上述处理液通过向上述底壁落下而流向上述下部流路的孔部，上述整流部配置于上述底壁中上述孔部的下方。
在上述构成中，流过形成于顶壁的上部流路的处理液经过上述孔部向底壁落下。整流部配置于上述孔部的下方，因此经过了孔部的处理液会向整流部落下。在该情况下，如上所述，会抑制由于落下而导致的起泡，因此不易阻碍上述处理液从下部流路至投入口的流动。
也可以是，上述孔部形成于上述顶壁中靠上述后壁处，上述下表面中靠上述后壁处的部分与上述底壁之间的长度比上述后壁与上述液剂容纳部之间的长度短。
在如上所述孔部形成于上述顶壁中靠上述后壁处的情况下，整流部也配置于靠后壁处。在下表面中靠后壁处的部分与底壁之间的长度比后壁与液剂容纳部之间的长度短的情况下，下部流路的入口侧(上游侧)的流路截面积狭窄。即使在像这样下部流路的入口附近的流路截面积狭窄的情况下，具备整流部的处理液投入装置也能抑制处理液从孔部落下的情况下的起泡，因此不易阻碍处理液向下部流路的流动。
本公开的另一方面的洗衣机具备洗涤桶和上述处理液投入装置。上述洗衣机具备上述处理液投入装置。在上述处理液投入装置中，即使在流路内使处理液从上向下落下的情况下，也不易阻碍处理液的流动。因此，能适当地向洗涤桶投入处理液。
发明效果
根据本公开，能提供一种即使处理液的流路中存在使处理液从上向下落下的区域，也不易在处理液落下之后阻碍处理液的流动的处理液投入装置和具备上述处理液投入装置的洗衣机。
附图说明
图1是一个实施方式的洗衣机的侧视图。
图2是图1所示的洗衣机的立体图。
图3是表示在图2所示的洗衣机中将第二液剂容纳部从供给机构拉出的状态的附图。
图4是表示处理液投入装置的概略构成的附图。
图5是用于说明由处理液投入装置将水供给至洗涤桶的情况下的一个过程的例子的示意图。
图6是用于说明由处理液投入装置从第一液剂容纳部取出第一液剂的过程的例子的示意图。
图7是用于说明将图6所示的过程中取出的第一液剂投入的过程的例子的示意图。
图8是用于说明由处理液投入装置从第二液剂容纳部取出第二液剂的过程的例子的示意图。
图9是用于说明将图8所示的过程中取出的第二液剂投入的过程的例子的示意图。
图10是一个实施方式的处理液投入装置的立体图。
图11是一个实施方式的第一液剂容纳部(液剂容纳部)的立体图。
图12是一个实施方式的第二液剂容纳部(液剂容纳部)的立体图。
图13是卸下了罩构件的状态的液剂容纳部的立体图。
图14是卸下了罩构件的状态的液剂容纳部的分解立体图。
图15是图10所示的液剂容纳部所具备的供给机构的立体图。
图16是图15所示的供给机构所具备的供水部的立体图。
图17是沿着图16的XVII-XVII线的剖视立体图。
图18是图15所示的供给机构所具备的负压产生部的立体图。
图19是图18中的XIX-XIX线的剖视图。
图20是图18中的XX-XX线的剖视立体图。
图21是图18中的XXI-XXI线的剖视图。
图22是图15所示的供给机构所具备的外壳的立体图。
图23是卸下了顶壁的状态的外壳的立体图。
图24是用于说明底壁的构成的附图。
图25是用于说明第一液剂容纳部所具备的阀与设于外壳中与第一液剂容纳部连结的第一液剂取出流路的阀的配置关系的附图。
图26是图22所示的外壳的分解立体图。
图27是用于说明形成于顶壁的上表面的流路的附图。
图28是用于说明形成于后壁的背面的流路的附图。
图29是从下表面侧观察顶壁的情况下的立体图。
图30是用于说明从顶壁朝向底壁落下的液体的流动的附图。
图31是用于说明处理液投入装置的变形例的概略构成的附图。
附图标记说明
1：洗衣机；5b：内桶(洗涤桶)；10、10A：处理液投入装置；11：供水
流路；12：主流路；12A：第一主流路；12B：第二主流路；13：投入流路；14：液剂取出流路；14A：第一液剂取出流路；14B：第二液剂取出流路；16：连结流路；20：液剂容纳部；20A：第一液剂容纳部；20B：第二液剂容纳部；41：底壁；42：左侧壁(第一侧壁或第二侧壁)；43：右侧壁(第二侧壁或第一侧壁)；44：后壁；45：顶壁；46：第六管部(第一液剂取出流路)；47：第七管部(第二液剂取出流路)；54a：连结管(第一主流路)；54b：连结管(第二主流路)；71：第一阀容纳部(第一主流路)；72：第二阀容纳部(第二主流路)；81：第一整流部(整流部)；311：供水管部(供水流路)；312：第一管部(第一主流路)；313：第二管部(第二主流路)；321：第三管部(第一主流路)；322：第四管部(第二主流路)；324：连结部(连结流路)；501：第一上表面流路(第一主流路)；502：第二上表面流路(第二主流路)；504：第四上表面流路(上部流路)；504b：孔部；601：第一背面流路(第一主流路)；602：第二背面流路(第二主流路)；811：整流板；S1：内部空间(供水流路)；S3a：空间(落下区域)；S3b：空间(下部流路)。
具体实施方式
以下，参照附图对本公开的实施方式进行说明。对相同的元件标注相同的附图标记，省略重复的说明。附图的尺寸比例并不一定与说明的内容一致。
图1是一个实施方式的洗衣机的侧视图。图2是图1所示的洗衣机的立体图。以下，有时也将图1所示的相互正交的X方向、Y方向以及Z方向用于洗衣机1的说明。X方向、Y方向以及Z方向与图1所示的洗衣机1的设置状态下的前后方向、左右方向以及高度方向(或上下方向或者垂直方向)对应。在以下的说明中，“前”、“后”、“上”、“下”、“左”、“右”等表示方 向的用语是基于图1和图2所示的洗衣机1的设置状态的用语。
对洗衣机1的概略构成进行说明。图1和图2所示的洗衣机1是立式洗衣机。洗衣机1具备箱体2。箱体2构成洗衣机1的轮廓。箱体2例如为金属制。箱体2具有上表面和下表面开放的中空的躯干部2a。躯干部2a的上表面由上表面板2b覆盖，在躯干部2a的下表面装配有底座2c。在从Z方向观察的情况下，躯干部2a的形状为方形(矩形或正方形)。
在上表面板2b形成有洗涤物的投入口。投入口由上盖3覆盖。上盖3开闭自如地装配于上表面板2b。在上表面板2b的前部设有操作面板部4。在操作面板部4配置有用于操作洗衣机1的多个按钮等。操作面板部4电连接于洗衣机1所具备的控制洗衣机1的控制部。控制部根据由操作面板部4输入的用户的指示来控制洗衣机1。
如图1所示，在箱体2内容纳有外桶5a和内桶(洗涤桶)5b。
外桶5a呈有底圆筒状。外桶5a例如是树脂制的桶。外桶5a通过具有防振装置的多根(例如四根)吊棒而弹性地悬吊于箱体2。外桶5a构成为：能经过设于箱体2内的供水路向外桶5a供给洗涤用的处理液，并且能经过设于箱体2内的排水路从外桶5a排出上述处理液。在本说明书中，“处理液”是指与洗涤物的清洗过程和漂洗过程等各过程相应的液体。因此，在清洗过程中，处理液可以是包含洗涤剂的液体，而在漂洗过程中，处理液可以是包含水或柔顺剂的液体。以下，为了便于说明，有时将流经流路的液体具体称为第一液剂、第二液剂以及水，有时也将流经流路的液体统一记载为处理液。
内桶5b呈有底圆筒状。内桶5b小于外桶5a，与外桶5a同轴地配置于外桶5a的内侧。内桶5b以能以沿Z方向延伸的旋转轴为中心旋转的方式配置于外桶5a的内侧。内桶5b例如是金属制的桶。内桶5b是用于对投入至内桶5b内的洗涤物进行洗涤或脱水的桶。在内桶5b的内周面形成有多个贯通孔。由此，洗涤液能在外桶5a与内桶5b之间往来。在内桶5b的底部，能旋转地配置有旋转翼(波轮)6。
为了对上述内桶5b和旋转翼6进行旋转驱动，在箱体2内还容纳有驱动单元7。驱动单元7配置于外桶5a的下部。驱动单元7产生驱动内桶5b和旋转翼 6的动力(转矩)。驱动单元7通过上述动力来使内桶5b和旋转翼6旋转。例如，在清洗过程和漂洗过程中，驱动单元7将上述动力仅传递至旋转翼6而仅使旋转翼6旋转，在脱水过程中，驱动单元7将上述动力传递至旋转翼6和内桶5b而使旋转翼6和内桶5b一体地旋转。
洗衣机1具备用于向内桶5b投入液剂的处理液投入装置10。
处理液投入装置10以如图2所示处理液投入装置10的正面部在上盖3打开的状态下露出的方式装入箱体2内的后方上部。处理液投入装置10被配置为使用于朝向内桶5b投入液剂的投入口位于内桶5b上。由此，能从上述投入口将液剂投入至内桶5b。处理液投入装置10具备第一液剂容纳部20A、第二液剂容纳部20B以及供给机构30。
第一液剂容纳部20A和第二液剂容纳部20B容纳液剂。液剂的例子为液体洗涤剂、柔顺剂等。第一液剂容纳部20A与第二液剂容纳部20B容纳不同的液剂。将第一液剂容纳部20A所容纳的液剂称为第一液剂，将第二液剂容纳部20B所容纳的液剂称为第二液剂。只要没有特别说明，则第一液剂为液体洗涤剂，第二液剂为柔顺剂。
第一液剂容纳部20A和第二液剂容纳部20B容纳于供给机构30所具有的外壳(箱体)40。第一液剂容纳部20A和第二液剂容纳部20B能相对于外壳40滑动。换言之，外壳40具有将第一液剂容纳部20A和第二液剂容纳部20B以能滑动的方式容纳的容纳空间。
如图3所示，通过将第二液剂容纳部20B从外壳40拉出，能向第二液剂容纳部20B补充第二液剂。图3是表示在图2所示的洗衣机1中将第二液剂容纳部20B从供给机构30拉出的状态的附图。利用图3来对第二液剂容纳部20B的情况进行了说明，但通过拉出第一液剂容纳部20A，能向第一液剂容纳部20A补充第一液剂。
处理液投入装置10还能从外壳40卸下第一液剂容纳部20A和第二液剂容纳部20B。即，第一液剂容纳部20A和第二液剂容纳部20B拆装自如地装配于外壳40。
利用图4来对处理液投入装置10的概略构成进行说明。图4是表示处理液 投入装置10的概略构成的附图。图4是着眼于处理液投入装置10中的处理液(包含第一液剂或第二液剂的水，或者水(不包含液剂的水))的流路的附图，与处理液投入装置10的配管图对应。
处理液投入装置10具有供水流路11、第一主流路12A、第二主流路12B以及投入流路13。供水流路11、第一主流路12A、第二主流路12B以及投入流路13是使处理液从供水口11a流向投入口13a的流路。
供水流路11的供水口11a经由软管等连接于洗衣机1的软管装配部。软管装配部进一步通过软管等连接于水龙头。由此，来自水龙头的水会流入供水口11a，因此水(处理液)会流入供水流路11。从供水口11a流入供水流路11的水经过第一主流路12A和第二主流路12B而流至投入流路13，之后从投入流路13的投入口13a投入至内桶5b。在以下的说明中，“上游”和“下游”是针对从供水口11a朝向投入口13a的处理液的流动方向的用语。
处理液投入装置10具备控制处理液从供水流路11向第一主流路12A的流入的供水阀V1a和控制处理液从供水流路11向第二主流路12B的流入的供水阀V1b。
在供水阀V1a和供水阀V1b双方均打开的状态下，水从供水流路11流入第一主流路12A和第二主流路12B这双方。在供水阀V1a打开且供水阀V1b关闭的状态下，水从供水流路11流入第一主流路12A，而水向第二主流路12B的流入被切断。相反，在供水阀V1a关闭且供水阀V1b打开的状态下，水从供水流路11流入第二主流路12B，而水向第一主流路12A的流入被切断。在供水阀V1a、V1b双方均关闭的状态下，水从供水流路11向第一主流路12A和第二主流路12B这双方的流入被切断。在本实施方式中，供水阀(第一阀)V1a和供水阀(第二阀)V1b为电磁阀。作为第一阀和第二阀的供水阀不限定于电磁阀。
处理液投入装置10具备对流经第一主流路12A和第二主流路12B的处理液向投入流路13的流入进行切换的流路切换单元U1。流路切换单元U1是用于对使处理液从第一主流路12A流向投入流路13的情况、使处理液从第二主流路12B流向投入流路13的情况以及使处理液从第一主流路12A和第二主流路12B这双方流向投入流路13的情况进行切换的部分。
如图4所示，流路切换单元U1的一个例子具有设于第一主流路12A的止回阀(第七阀)V2a和设于第二主流路12B的止回阀(第八阀)V2b。在通过打开供水阀V1a而在第一主流路12A中产生了处理液从上游朝向下游的流动的情况下，止回阀V2a使处理液从第一主流路12A流向投入流路13。在通过打开供水阀V1b而在第二主流路12B中产生了处理液从上游朝向下游的流动的情况下，止回阀V2b使处理液从第二主流路12B流向投入流路13。作为第七阀和第八阀，举例示出了止回阀，但第七阀和第八阀只要能实现与止回阀相同的功能，就不限定阀的种类等。
在第一主流路12A连接有第一液剂取出流路14A。在第一液剂容纳部20A装接于外壳40的情况下，第一液剂容纳部20A以能从第一液剂容纳部20A取出第一液剂的方式连接于第一液剂取出流路14A。由此，在第一液剂容纳部20A容纳于外壳40的状态下，第一液剂容纳部20A经由第一液剂取出流路14A连接于第一主流路12A。
为了防止第一主流路12A内的水等处理液向第一液剂容纳部20A的逆流、防止卸下了第一液剂容纳部20A的情况下第一主流路12A内的处理液的漏出等，在第一液剂取出流路14A配置有止回阀(第五阀)V3a。作为第五阀，举例示出了止回阀，但第五阀只要能实现与上述止回阀相同的功能，就不限定阀的种类等。
在第二主流路12B连接有第二液剂取出流路14B。在第二液剂容纳部20B装接于外壳40的情况下，第二液剂容纳部20B以能从第二液剂容纳部20B取出第二液剂的方式连接于第二液剂取出流路14B。由此，在第二液剂容纳部20B容纳于外壳40的状态下，第二液剂容纳部20B经由第二液剂取出流路14B连接于第二主流路12B。
在第二液剂取出流路14B，为了防止第二主流路12B内的水等处理液向第二液剂容纳部20B的逆流、防止卸下了第二液剂容纳部20B的情况下第二主流路12B内的处理液的漏出等，在第二液剂取出流路14B配置有止回阀(第六阀)V3b。作为第六阀，举例示出了止回阀，但第六阀只要能实现与上述止回阀相同的功能，就不限定阀的种类等。
为了分别从第一液剂容纳部20A和第二液剂容纳部20B抽取液剂，处理液 投入装置10具备负压产生单元U2。在本实施方式中，负压产生单元U2具有设于第一主流路12A的一部分的第一文丘里部15A和设于第二主流路12B的一部分的第二文丘里部15B。第一文丘里部15A和第二文丘里部15B通过文丘里效应而产生负压。第一文丘里部15A在第一主流路12A中配置于比第一液剂取出流路14A与第一主流路12A的连接部靠上游处。第二文丘里部15B在第二主流路12B中配置于比第二液剂取出流路14B与第二主流路12B的连接部靠上游处。
第一文丘里部15A和第二文丘里部15B由连结流路16连接。在连结流路16设有流量计17。流量计17的结果可以由控制洗衣机1的控制部进行解析。
在处理液投入装置10中，第一主流路12A和第二主流路12B由绕过负压产生单元U2的旁通流路18与投入流路13连接。旁通流路18的上游侧分支为两路并连接于第一主流路12A和第二主流路12B。旁通流路18中与第一主流路12A和第二主流路12B各自的连接部位于负压产生单元U2的上游。在旁通流路18中靠第一主流路12A与旁通流路18的连接部处，配置有控制处理液从第一主流路12A向旁通流路18的流动的溢流阀(第三阀)V4a。在旁通流路18中靠第二主流路12B与旁通流路18的连接部处，配置有控制处理液从第二主流路12B向旁通流路18的流动的溢流阀(第四阀)V4b。作为第三阀和第四阀，举例示出了溢流阀，但第三阀和第四阀只要能实现与上述溢流阀同样的功能，就不限定阀的种类等。
在此，对使用了处理液投入装置10的液剂投入方法的概况进行说明。基于第一液剂容纳部20A和第二液剂容纳部20B设置于外壳40且第一液剂容纳部20A和第二液剂容纳部20B连接于第一液剂取出流路14A和第二液剂取出流路14B的状态、和来自水龙头的水能流入供水口11a的状态，对上述液剂投入方法的概况进行说明。
首先，打开供水阀V1a、V1b。由此，如图5所示，水(处理液)流入第一主流路12A和第二主流路12B。此时，打开供水阀V1a、V1b，以使第一主流路12A和第二主流路12B内的压力(水压)实质上相同。通过流经第一主流路12A和第二主流路12B的水的压力，止回阀V2a、V2b和溢流阀V4a、V4b打开。由此，水通过经过负压产生单元U2和流路切换单元U1的路径从第一主流路12A和第二主流路12B这双方流入投入流路13，并且水通过经过旁通流路18的路径 流入投入流路13。这样一来，流入投入流路13的水被供给至内桶5b(通水过程)。图5是表示通水过程中的水的流动的示意图。在图5中，用箭头示意性示出水的流动。
在上述通水过程中，水也会流入连结流路16。因此，连结流路16内也充满水。在通水过程中，止回阀V3a、V3b维持关闭的状态。因此，水不会流入第一液剂容纳部20A和第二液剂容纳部20B。
在如上所述向内桶5b供给了一定量的水之后，关闭供水阀V1a、V1b。由此，维持在第一主流路12A、第二主流路12B以及连结流路16内填充有水的状态(填充过程)。
在实施了上述填充过程之后，在要投入第一液剂的情况下实施第一液剂取出过程和第一液剂投入过程，在要投入第二液剂的情况下实施第二液剂取出过程和第二液剂投入过程。
首先，对投入第一液剂的情况进行说明。图6是表示第一液剂取出过程中的水和第一液剂的流动的示意图。图7是表示第一液剂投入过程中的水和第一液剂的流动的示意图。在图6和图7中，用实线箭头示出水的流动，用虚线箭头示出第一液剂的流动。
在第一液剂取出过程中仅打开供水阀V1b。在该情况下，如图6所示，水从供水流路11流入第二主流路12B，但水不会从供水流路11流入第一主流路12A。在这样的水的流动中，止回阀V2b和溢流阀V4b打开，但止回阀V2a和溢流阀V4a关闭。其结果是，会产生从供水流路11经由第二主流路12B的朝向投入流路13的水流和从供水流路11经由第二主流路12B和旁通流路18的朝向投入流路13的水流。
通过在配置于第二主流路12B的第二文丘里部15B内产生的负压，第一主流路12A和连结流路16内的水经过连结流路16和第二文丘里部15B流向第二主流路12B。像这样，通过产生从第一主流路12A向第二主流路12B的水流，朝向第一文丘里部15A的压力会作用于止回阀V3a，由此止回阀V3a打开。其结果是，第一液剂容纳部20A内的第一液剂会被抽入至第一液剂取出流路14A，因此第一液剂朝向第一主流路12A被取出。此时，以使第一主流路12A中临时 贮留所取出的第一液剂的第一贮留区域充满的方式取出第一液剂。存放于第一贮留区域的第一液剂如后文所述是要被投入内桶5b的第一液剂。
在第一液剂取出过程中，利用设于连结流路16的流量计17来测量流过连结流路16的水量，在测量值达到规定水量的情况下，判定为已取出所期望的第一液剂。上述规定水量是在上述填充过程中填充于第一主流路12A的水中与上述第一液剂的抽取量(充满第一贮留区域为止的量)对应的水的量。第一液剂的抽取量被设定为第一液剂不会流动至流量计17的量。
在该阶段，通过打开供水阀V1a来实施第一液剂投入过程。通过打开供水阀V1a，与通水过程的情况同样，水会流向第一主流路12A和第二主流路12B。其结果是，如图7中实线和虚线的箭头所示，上述第一贮留区域内的第一液剂与水一起被投入至内桶5b。第一液剂投入过程也与通水过程的情况同样，水也经由旁通流路18流入投入流路13。
在投入了第一液剂之后继续使一定量的水流动，由此残留于第一主流路12A等的第一液剂也被冲走，与水一起被投入至内桶5b。换言之，与通水过程同样，第一主流路12A等中水流经的部分会被洗净(洗净过程)。在此，为了便于说明，将第一液剂投入过程与洗净过程分开进行说明，但第一液剂投入过程与洗净过程也可以是一个过程。
通过上述洗净过程，例如，在向内桶5b投入了第一液剂之后投入第二液剂容纳部20B内的第二液剂的情况下，会防止第一液剂混入处理液中。在向内桶5b投入了第一液剂之后投入第二液剂的情况下，上述洗净过程与针对第二液剂的上述通水过程对应。
接着，对投入第二液剂的情况进行说明。图8是表示第二液剂取出过程中的水和第二液剂的流动的示意图。图9是表示第二液剂投入过程中的水和第二液剂的流动的示意图。在图8和图9中，用实线箭头示出水的流动，用虚线箭头示出第一液剂的流动。
在第二液剂取出过程中，在填充过程之后仅打开供水阀V1a。在该情况下，如图8所示，水从供水流路11流入第二主流路12B，但水不会从供水流路11流入第一主流路12A。在该情况下，止回阀V2a和溢流阀V4a打开，但止回阀 V2b和溢流阀V4b关闭。其结果是，会产生处理液从供水流路11经由第一主流路12A的朝向投入流路13的流动和水从供水流路11经由第一主流路12A和旁通流路18的朝向投入流路13的流动。
在该情况下，通过在配置于第一主流路12A的第一文丘里部15A内产生的负压，第二主流路12B和连结流路16内的水经过连结流路16和第一文丘里部15A流向第一主流路12A。像这样，通过产生从第二主流路12B向第一主流路12A的水流，朝向第二文丘里部15B的压力会作用于止回阀V3b，由此止回阀V3b打开。其结果是，第二液剂容纳部20B内的第二液剂被抽入至第二液剂取出流路14B，因此第二液剂朝向第二主流路12B被取出。此时，以使第二主流路12B中临时贮留所取出的第二液剂的第二贮留区域充满的方式取出第二液剂。贮留于第二贮留区域的第二液剂如后文所述是要被投入内桶5b的第二液剂。
在第二液剂取出过程中，利用设于连结流路16的流量计17来测量流过连结流路16的水量，在测量值达到规定水量的情况下，判定为已取出所期望的第二液剂。上述规定水量是在上述填充过程中填充于第二主流路12B的水中与上述第二液剂的抽取量(充满第一贮留区域为止的量)对应的水的量。第二液剂的抽取量被设定为第二液剂不会流动至流量计17的量。
在该阶段，打开供水阀V1b。由此，与通水过程的情况同样，水会流向第一主流路12A和第二主流路12B，如图9中实线和虚线的箭头所示，蓄于从第二液剂取出流路14B到第二文丘里部15B之间的第二液剂与水一起被投入至内桶5b。
在投入了第二液剂之后继续使一定量的水流动，由此残留于第二主流路12B等的第二液剂也被冲走，与水一起被投入至内桶5b。换言之，与通水过程同样，第二主流路12B等中水流经的部分会被洗净(洗净过程)。在此，为了便于说明，将第二液剂投入过程与洗净过程分开进行说明，但第二液剂投入过程与洗净过程也可以是一个过程。
上述液剂投入方法中的供给机构30的控制可以由控制洗衣机1的控制部实施，供给机构30可以具有用于控制供给机构30的各设备(供水阀V1a、V1b等)的控制部。
接着，对处理液投入装置10的构成的一个例子进行具体说明。图10是处理液投入装置10的立体图。如图10所示，处理液投入装置10具备两个液剂容纳部20和供给机构30。在区分两个液剂容纳部20进行说明的情况下，如上所述，将两个液剂容纳部20的一方称为“第一液剂容纳部20A”，将另一方称为“第二液剂容纳部20B”。第一液剂容纳部20A容纳第一液剂，第二液剂容纳部20B容纳与第一液剂不同的第二液剂。
[液剂容纳部]
图11是两个液剂容纳部20中的一方的立体图。具体而言，图11是第一液剂容纳部20A的立体图。图12是两个液剂容纳部20中的另一方的立体图。具体而言，图12是第二液剂容纳部20B的立体图。图13是卸下了罩22的状态的液剂容纳部20的立体图。图14是卸下了罩22的状态的液剂容纳部20的分解立体图。图13和图14是液剂容纳部20为第二液剂容纳部20B的情况下的附图。
液剂容纳部20具有液剂槽(液剂容器)21。液剂槽21是蓄留液剂的容器。液剂槽21的上表面(或上部)开放。如图13所示，液剂槽21具有底壁211和设置为包围底壁211的周围的前壁212、左侧壁213、右侧壁214以及后壁215。前壁212、左侧壁213、右侧壁214以及后壁215也可以从底壁211的周缘部经由弯曲部垂直地立起。液剂槽21的材料的例子为树脂。上述树脂的例子为聚丙烯、聚对苯二甲酸乙二醇酯等。在液剂槽21为树脂制槽的情况下，液剂槽21例如由树脂一体成型。
上述构成的液剂槽21呈上表面开放的箱状。如图11和图12所示，液剂槽21的上表面由罩22封闭。在本实施方式中，罩22相对于液剂槽21拆装自如。在罩22中靠前壁212处形成有用于将液剂投入至液剂槽21的液剂流入口。在一个实施方式中，液剂流入口由盖23堵塞。盖23可以以使液剂流入口开闭自如的方式装配于罩22。用户能通过打开盖23来将液剂投入至液剂槽21。
可以在前壁212的外表面装配正面门24。在正面门24例如具备由透明的构件形成的液量窗241。用户能通过液量窗241来确认蓄于液剂槽21的液剂的量。在图12～图14所示的方案中，液量窗241设于正面门24中的靠左处。图12～图14图示出了第二液剂容纳部20B作为液剂容纳部20，因此在第一液剂容纳部20A的情况下，液量窗241设于正面门24中的靠右处。
作为液剂容纳部20的方案，也可以设为省略正面门24而由前壁212形成液剂容纳部20的正面形状的方案。
如图13和图14所示，在液剂槽21内设有液剂取出部25和异物去除部26。
液剂取出部25具有用于使液剂槽21内的液剂流向供给机构30的液剂引导流路251。液剂取出部25连接于后壁215，液剂引导流路251将后壁215贯通。液剂引导流路251具有从后壁215向前方延伸的第一部分251a和从第一部分251a的前端朝向底壁211下垂的第二部分251b。第一部分251a例如在液剂容纳部20被设定于外壳40的状态下沿着水平方向。第二部分251b的下端是液剂的抽入口。在本实施方式中，在第一部分251a设有止回阀V5。止回阀V5是用于防止从外壳40卸下了液剂容纳部20的情况下液剂容纳部20内的液剂从液剂引导流路251泄漏的阀。
异物去除部26是去除异物以使液剂引导流路251不会抽入异物的部分。异物的例子为线屑、头发等。在本实施方式中，异物去除部26以包围液剂取出部25的方式装配于底壁211。基于图13和图14所示的方案对异物去除部26的一个例子进行说明。
异物去除部26具有扁平的过滤部261和罩构件262。过滤部261是去除异物的部分。换言之，过滤部261对液剂进行过滤。罩构件262一体地设于过滤部261。罩构件262覆盖液剂取出部25。罩构件262的形状例如如图13和图14所示为半圆筒状。异物去除部26以由罩构件262覆盖液剂取出部25的方式嵌于液剂取出部25。异物去除部26通过将过滤部261装配于底壁211而固定于液剂槽21。在这样的构成中，由过滤部261去除异物后的液剂流入配置于异物去除部26的内侧的液剂取出部25内的液剂引导流路251。
[供给机构]
图15是供给机构30的立体图。供给机构30具有供水部31、负压产生部32以及外壳40。在本实施方式中，供水部31与负压产生部32由连结管33连接。负压产生部32螺纹固定于外壳40。
[供水部]
供水部31是将来自水龙头的水供给至负压产生部32和外壳40的部分。图 16是供水部31的立体图。图17是沿着图16的XVII-XVII线的剖视立体图。供水部31中构成各流路的壁部等例如为树脂制，树脂的例子与液剂槽21的情况相同。
供水部31具有供水管部311、第一管部312以及第二管部313。在图16和图17所示的方案中，供水管部311沿X方向延伸，第一管部312和第二管部313沿Y方向延伸。在供水部31内形成有将供水管部311、第一管部312以及第二管部313连接的内部空间S1。由此，流过供水管部311内的水经过内部空间S1流向第一管部312和第二管部313。内部空间S1也作为临时贮水的贮留室发挥功能。
在供水部31装配有供水阀V1a和供水阀V1b。由此，控制流过供水部31的水向第一管部312和第二管部313的流入。图17示出供水阀V1a和供水阀V1b打开从而流过供水部31的水流向第一管部312和第二管部313这双方的情况。在不使水流向第一管部312的情况下，通过供水阀V1a来使第一管部312与内部空间S1的连接端部关闭。同样地，在不使水流向第二管部313的情况下，通过供水阀V1b来使第二管部313与内部空间S1的连接端部关闭。
供水管部311和内部空间S1构成供水流路11。供水管部311的端部311a为供水口11a。第一管部312构成第一主流路12A的一部分，第二管部313构成第二主流路12B的一部分。
如图15所示，供水部31由连结管33连接于负压产生部32。具体而言，第一管部312由连结管33连接于后述的第三管部321，第二管部313由连结管33连接于后述的第四管部322。将第一管部312与负压产生部连接的连结管33构成第一主流路12A的一部分，将第二管部313与负压产生部连接的连结管33构成第二主流路12B的一部分。连结管33例如为橡胶制的管。连结管33为橡胶制的管，由此容易将连结管33安装于上表面板2b(参照图1)。
[负压产生部]
利用图18～图21来对负压产生部32进行说明。图18是负压产生部32的立体图。图19是沿着图18的XIX-XIX线的剖视图。图20是沿着图18的XX-XX线的剖视立体图。图21是沿着图18的XXI-XXI线的剖视图。
负压产生部32是用于使从供水部31流入的水流向外壳40并且产生用于从第一液剂容纳部20A抽取第一液剂的负压和用于从第二液剂容纳部20B抽取第二液剂的负压的部分。负压产生部32具有第三管部321、第四管部322以及第五管部323。
第三管部321沿着Y方向。第三管部321由连结管33连接于第一管部312(参照图16)。由此，来自第一管部312的水流向第三管部321。第三管部321构成第一主流路12A的一部分。
如图19所示，在第三管部321设有第一文丘里部15A。第一文丘里部15A具有流路局部收缩的收缩部151和与收缩部151交叉相连的分支路152。收缩部151的流路截面积小于第三管部321内的水的流动方向上的收缩部151的上游和下游的流路截面积。虽然在图19所示的方案中通过使第三管部321的直径缩小而形成有收缩部151，但收缩部151只要能减小流路截面积即可，不限定收缩部151的形成方法。在第一文丘里部15A中，通过水流过收缩部151而在分支路152产生负压。流过收缩部151的水的速度以通过文丘里效应来产生所期望的负压的方式进行调整即可。上述构成的第三管部321的一部分作为文丘里管发挥功能。也可以将整个第三管部321称为文丘里管。
第四管部322沿着Y方向。第四管部322由连结管33连接于第二管部313(参照图16)。由此，来自第二管部313的水流向第四管部322。第四管部322构成第二主流路12B的一部分。在第四管部322设有第二文丘里部15B(在图19中未图示)。与第一文丘里部15A的情况同样，第二文丘里部15B也具有收缩部151和分支路152。因此，第四管部322的一部分作为文丘里管发挥功能。也可以将整个第四管部322称为文丘里管。
第一文丘里部15A和第二文丘里部15B由处理液能在内部流动的连结部324连接。如图18和图21所示，连结部324具有与第一文丘里部15A的分支路152连通的第一部分324a、与第二文丘里部15B的分支路152连通的第二部分324b以及沿着X方向并使第一部分324a与第二部分324b相连的第三部分324c。第三部分324c将第一部分324a的上端部与第二部分324b的上端部连接。连结部324作为连结流路16发挥功能。
在第三部分324c装配有对流过连结部324内的水的流量进行测量的流量计 17。流量计17只要如图20和图21所示设置在设于第三部分324c上的容纳部325内即可。
如图19和图20所示，在负压产生部32形成有内部空间S2。内部空间S2与第三管部321和第四管部322相连。内部空间S2配置于第三管部321和第四管部322的下侧。基于图19来对第三管部321与内部空间S2的连接关系进行说明。
如图19所示，第三管部321与内部空间S2由形成于第三管部321的孔部321a相连。孔部321a在第三管部321中形成于第一文丘里部15A的上游。在内部空间S2内，在孔部321a的位置配置有控制水从孔部321a的流入的溢流阀V4a。溢流阀V4a被配置为：在供水阀V1a打开从而水流经第三管部321的状态下溢流阀V4a也打开，在供水阀V1a关闭从而水未流经第三管部321的状态下溢流阀V4a也关闭。在溢流阀V4a打开的状态下，流经第三管部321的水也会流入内部空间S2。
图19图示出了第三管部321与内部空间S2的连接关系，但第四管部322与内部空间S2的连接关系也与此相同。即，第四管部322与内部空间S2由形成于第四管部322的孔部相连。孔部在第四管部322中形成于第二文丘里部15B的上游。在内部空间S2内，在形成于第四管部322的通向内部空间S2的孔部的位置，配置有控制水从孔部的流入的溢流阀V4b。溢流阀4b被配置为：在供水阀V1b打开从而水流经第四管部322的状态下溢流阀4b也打开，在供水阀V1b关闭从而水未流经第四管部322的状态下溢流阀4b也关闭。在溢流阀4b打开的状态下，流经第四管部322的水也会流入内部空间S2。
如图18所示，第五管部323配置于靠第三管部321(或第四管部322)的下游端部处。在本实施方式中，第五管部323配置于第三管部321与第四管部322之间。如图20所示，第五管部323与内部空间S2相连。因此，从第三管部321和第四管部322流入内部空间S2的水流向第五管部323。内部空间S2和第五管部323构成旁通流路18的一部分。上述内部空间S2也作为临时贮存从第三管部321和第四管部322流入的水的贮留室发挥功能。
[外壳]
利用图22～图30来对外壳40的一个例子进行说明。图22是外壳40的立体图。图23是卸下了顶壁45的状态的外壳40的立体图。图24是用于说明底壁41的构成的附图。图25是用于说明第一液剂容纳部20A所具备的止回阀V5与外壳40所具有的设于第六管部46(第一液剂取出流路)的止回阀V3a的配置关系的附图。图26是外壳40的分解立体图。图27是用于说明形成于顶壁45的上表面451的流路的附图。图28是用于说明形成于后壁44的背面441的流路的附图。图29是从下表面452侧观察顶壁45的情况下的立体图。图30是用于说明从顶壁45朝向底壁41落下的处理液的流动的附图。
外壳40容纳第一液剂容纳部20A和第二液剂容纳部20B。外壳40呈前方开放的箱状。外壳40具有底壁41、左侧壁42、右侧壁43、后壁44以及顶壁45。在将左侧壁42和右侧壁43中的一方称为第一侧壁的情况下，可以将另一方称为第二侧壁。
顶壁45与底壁41在Z方向上对置。后壁44使底壁41与顶壁45相连。左侧壁42在X方向上与右侧壁43对置。左侧壁42和右侧壁43使底壁41、后壁44以及顶壁45相连。由底壁41、左侧壁42、右侧壁43、后壁44以及顶壁45形成有容纳第一液剂容纳部20A和第二液剂容纳部20B的容纳空间S3。
底壁41具有底壁主体411和支承板412。后壁44、左侧壁42以及右侧壁43以包围底壁主体411的前缘部以外的周围的方式从底壁主体411连续地立起。如图22、图23以及图24所示，支承板412配置于底壁主体411的前侧。支承板412支承第一液剂容纳部20A和第二液剂容纳部20B的前侧部分。支承板412在X方向上的支承板412的两端部处与底壁主体411连接。
如图24所示，在支承板412的两端部之间的部分与底壁主体411之间形成有开口413。开口413是用于将处理液投入至内桶5b的投入口13a。支承板412的下部也可以朝向后方倾斜。在该情况下，从开口413朝向后方投入处理液。在形成有开口413的区域，也可以由在X方向上分散配置的多个连结片414支承。
底壁主体411从后壁44朝向前方下降，以使处理液从后壁44朝向开口413流动。在本实施方式中，底壁主体411从后壁44朝向前方分三段呈台阶状地下降。
具体而言，底壁主体411具有与后壁44相连的第一台阶部411a、从第一台阶部411a下降的第二台阶部411b以及从第二台阶部411b进一步下降的第三台阶部411c。第二台阶部411b与第三台阶部411c的连接区域如图24所示与液剂槽21的由后壁215与底壁211构成的角部对置。第三台阶部411c在第一液剂容纳部20A和第二液剂容纳部20B容纳于外壳40的状态下位于第一液剂容纳部20A和第二液剂容纳部20B的下方。
如图23所示，可以在底壁主体411形成有规定处理液所流经的区域的两个流路规定部415。两个流路规定部415中的一方形成于靠左侧壁42处，另一方形成于靠右侧壁43处。在一个例子中，流路规定部415形成为使处理液朝向开口413的中央部流动。由此，会抑制处理液从开口413以外的部位漏出。
在底壁主体411的Y方向上的两个缘部，形成有支承液剂容纳部20的基部416。在一个例子中，基部416作为将第一液剂容纳部20A和第二液剂容纳部20B容纳于外壳40内时的引导件发挥功能。
也可以是，如图22和图23所示，在左侧壁42形成有在将第一液剂容纳部20A容纳于外壳40内时引导第一液剂容纳部20A的引导部421。引导部421也作为支承第一液剂容纳部20A的支承部发挥功能。
也可以是，在右侧壁43形成有在将第二液剂容纳部20B容纳于外壳40内时引导第二液剂容纳部20B的引导部431。引导部431也作为支承第二液剂容纳部20B的支承部发挥功能。在图23中，示出引导部421和引导部431为形成于左侧壁42和右侧壁43的台阶部的方案。
如图23所示，在后壁44配置有在将第一液剂容纳部20A和第二液剂容纳部20B装接于外壳40的情况下连结于第一液剂容纳部20A和第二液剂容纳部20B的第六管部46和第七管部47。第六管部46和第七管部47沿着X方向。第六管部46的前端461和第七管部47的前端471位于外壳40内。
第六管部46作为第一液剂取出流路14A发挥功能。在第六管部46内配置有止回阀V3a。止回阀V3a沿着X方向配置。第七管部47作为第二液剂取出流路14B发挥功能。在第七管部47内配置有止回阀V3b。止回阀V3b沿着X方向配置。止回阀V3a、V3b可以是具有阀体和弹簧(弹性构件)的弹簧式阀。
在第一液剂容纳部20A设置于外壳40的状态下，第一液剂容纳部20A所具有的液剂引导流路251连结于第六管部46。在第六管部46装配有棒状构件48。在液剂容纳部20设置于外壳40时，棒状构件48将液剂引导流路251所具有的第一部分251a内的止回阀V5(参照图14和图24)向前方按压。由此，止回阀V5打开，因此在第一液剂容纳部20A设置于外壳40的情况下，会实现第一液剂能从第一液剂容纳部20A朝向第六管部46流入的状态。
在第二液剂容纳部20B设置于外壳40的状态下，第二液剂容纳部20B所具有的液剂引导流路251连结于第七管部47。在第七管部47装配有棒状构件48。在第二液剂容纳部20B设置于外壳40时，棒状构件48将止回阀V5向前方按压。由此，止回阀V5打开，因此在第二液剂容纳部20B设置于外壳40的情况下，会实现第二液剂能从第二液剂容纳部20B朝向第七管部47流入的状态。
利用图25来对第一液剂容纳部20A内的止回阀V5与第六管部46内的止回阀V3a的配置关系进行说明。在图25中，从对止回阀V5与止回阀V3a的配置关系进行说明的角度出发，示意性示出了止回阀V3a、V5的附近的构成元件。
在本实施方式中，止回阀V3a和止回阀V5分别沿着X方向配置。因此，止回阀V3a和止回阀V5沿着一个方向配置。在洗衣机1的设置状态下，X方向与水平方向对应。因此。止回阀V3a和止回阀V5沿着水平方向配置。
利用图25对第一液剂容纳部20A内的止回阀V5与第六管部46内的止回阀V3a的配置关系进行了说明，而第二液剂容纳部20B内的止回阀V5与第七管部47内的止回阀V3b的配置关系也同样。即，止回阀V3b和对应的止回阀V5沿着一个方向配置。
在外壳40形成有用于使来自负压产生部32、第一液剂容纳部20A以及第二液剂容纳部20B的处理液流至开口413的流路。对该流路进行说明。
如图22和图26所示，在顶壁45配置有上表面流路部50。上表面流路部50设于顶壁45的上表面451的一部分。上表面流路部50呈箱状。上表面流路部50具有包围上表面451的规定区域的周壁51和装配于周壁51的盖52。如图26和图27所示，上表面流路部50内由分隔壁513分隔。由此，在上表面流路部50内形成有第一上表面流路501、第二上表面流路502、第三上表面流路503 以及第四上表面流路504。
第一上表面流路501对应于在利用图6进行了说明的第一液剂取出过程中从第一液剂容纳部20A取出了第一液剂的情况下临时贮留第一液剂的第一贮留区域。因此，上表面流路部50作为第一液剂存放部发挥功能。
如图26所示，在后壁44配置有背面流路部60。背面流路部60设于后壁44的背面441的一部分。背面流路部60呈箱状。背面流路部60具有包围背面441的规定区域的周壁61和装配于周壁61的盖62。如图26和图28所示，背面流路部60内由分隔壁63分隔，由此形成有第一背面流路601和第二背面流路602。
第二背面流路602对应于在利用图进行了说明的第二液剂取出过程中从第二液剂容纳部20B取出了第二液剂的情况下临时存放第二液剂的第二贮留区域。因此，背面流路部60作为第二液剂存放部发挥功能。
如图23所示，在外壳40内的靠左侧壁42处配置有止回阀容纳部70。止回阀容纳部70具有沿着Z方向的第一阀容纳部71和第二阀容纳部72。第一阀容纳部71是具有上部开口的中空体，在其内部配置有止回阀V2a。止回阀V2a配置为能使处理液在第一阀容纳部71中从下部朝向上部流动。第二阀容纳部72是具有上部开口的中空体，在其内部配置有止回阀V2b。止回阀V2b配置为能使处理液在第二阀容纳部72中从下部朝向上部流动。止回阀V2a、V2b例如可以是浮子式止回阀。
止回阀容纳部70可以具有使第一阀容纳部71与第二阀容纳部72相连的连结部73。连结部73连接第一阀容纳部71和第二阀容纳部72中比配置有止回阀V2a、V2b的部分靠上部的部分。连结部73的下端部封闭。连结部73的上端部开口。
第一上表面流路501将负压产生部32的第三管部321(参照图18)与第一背面流路601连接。第一背面流路601将第一上表面流路501、第六管部46以及第一阀容纳部71连接。第一上表面流路501、第一背面流路601以及第一阀容纳部71构成第一主流路12A的一部分。对第三管部321、第一上表面流路501、第一背面流路601、第六管部46与第一阀容纳部71的连接关系的一个例子进行 说明。
第一上表面流路501由连结管54a(参照图26、图27以及图29)与第三管部321连接。连结管54a设于顶壁45的右侧缘部附近。连结管54a在负压产生部32固定于外壳40的状态下连接于第三管部321(参照图18)。如图27所示，在顶壁45中的第一上表面流路501内形成有与连结管54a相连的孔部501a。通过上述构成，第一上表面流路501与第三管部321连通。
第一上表面流路501与第一背面流路601由形成于顶壁45的引导筒55a(参照图29)和形成于后壁44的引导筒64a(参照图28)连接。引导筒55a从形成于顶壁45中的第一上表面流路501内的孔部501b向下方延伸。如图27所示，孔部501b在顶壁45中形成于后缘部附近。如图28所示，引导筒64a沿着Z方向，引导筒64a的上部连接于引导筒55a，引导筒64a的下部与第一背面流路601相连。在图28所示的方案中，引导筒64a的下部位于从后壁44的背面441向后方突出的第六管部46的后端462的上方。在第一背面流路601内，在引导筒64a的下部的位置形成有孔部601a。由此，第一背面流路601与引导筒64a连通。通过上述构成，第一上表面流路501与第一背面流路601连通。因此，在该情况下，引导筒55a和引导筒64a也构成第一主流路12A的一部分。
第六管部46的后端462从背面441向第一背面流路601内突出。可以是，在后端462形成有至少一个缺口以使第一背面流路601与第六管部46连通。通过该构成，第六管部46与第一背面流路601连通。在此，举例示出了第六管部46的后端462从背面442向后方突出的方案，但也可以在后壁44形成与后端462相连的孔部。
在后壁44中与第一阀容纳部71的下部对应的位置形成有孔部601b。通过该孔部601b，第一背面流路601与第一阀容纳部71连通。
第二上表面流路502将第七管部47与第二背面流路602连接。第二背面流路602将第二上表面流路502、第七管部47以及第二阀容纳部72连接。第二上表面流路502、第二背面流路602以及第二阀容纳部72构成第二主流路12B的一部分。
第二上表面流路502由连结管54b(参照图26、图27以及图28)与第四管 部322(参照图18)。连结管54b设于顶壁45的右侧缘部附近。连结管54b配置于比连结管54a靠顶壁45的后缘部处。在负压产生部32固定于外壳40的状态下，连结管54b连接于第四管部322。在顶壁45中的第二上表面流路502内形成有与连结管54b相连的孔部502b。通过上述构成，第二上表面流路502与第四管部322连通。
第二上表面流路502与第二背面流路602由形成于顶壁45的引导筒55b(参照图29)和形成于后壁44的引导筒64b(参照图23和图28)连接。引导筒55b从形成于顶壁45中的第二上表面流路502内的孔部502b(参照图27)向下方延伸。孔部502b在顶壁45中形成于由后缘部和右侧缘部构成的角部附近。引导筒64b具有与引导筒55b连接的开口，与开口相反的部分封闭。因此，引导筒64b呈有底筒状。在引导筒64b的底部附近，在后壁44形成有孔部602b(参照图28)。通过孔部602b，引导筒64b与第二背面流路602连通。通过上述构成，第二上表面流路502与第二背面流路602连通。
如图28所示，第七管部47的后端472从背面442向第二背面流路602内突出。可以是，在后端472形成有至少一个缺口以使第二背面流路602与第七管部47连通。通过该构成，第七管部47与第二背面流路602连通。在此，举例示出了后端472从背面442向后方突出的方案，但也可以在后壁44形成与后端472相连的孔部。
在后壁44中与第二阀容纳部72的下部对应的位置形成有孔部602b。通过该孔部602b，第二背面流路602与第二阀容纳部72连通。
第三上表面流路503将第五管部323(参照图18)与外壳40内的容纳空间S3连接。第三上表面流路503构成旁通流路18的一部分。
第三上表面流路503由连结管54c(参照图26、图27以及图29)与第五管部323连接。连结管54c设于顶壁45的右侧缘部附近。连结管54c配置于连结管54a与连结管54b之间。在负压产生部32固定于外壳40的状态下，连结管54c连接于第五管部323。在顶壁45中的第三上表面流路503内形成有与连结管54c相连的孔部503a(参照图27)。通过上述构成，第三上表面流路503与第五管部323连通。
如图27所示，在顶壁45的后缘部附近，在第三上表面流路503内形成有至少一个孔部503b。在图27所示的方案中，在顶壁45形成有三个孔部503b。孔部503b位于底壁41的第一台阶部411a上。通过孔部503b，第三上表面流路503与外壳40内的容纳空间S3连通，因此流过第三上表面流路503的处理液从孔部503b流入外壳40内。也可以在孔部503b的下部形成引导筒55c(参照图29)。由此，处理液容易从孔部503b朝正下方落下。
第四上表面流路504沿着顶壁45的后缘部形成。第四上表面流路504将止回阀容纳部70与外壳40内的容纳空间S3连接。第四上表面流路504构成投入流路13的一部分(投入流路13的第二部分)。
如图27所示，在顶壁45中的第四上表面流路504内形成有三个孔部504a1、504a2、504a3以及孔部504b。孔部504a1、504a2、504a3与第一阀容纳部71、连结部73以及第二阀容纳部72的上部开口相连。由此，第四上表面流路504与止回阀容纳部70连通。也可以在孔部504a1、504a2、504a3的下部形成引导筒55d(参照图29)。在该情况下，引导筒55d连接于第一阀容纳部71、连结部73以及第二阀容纳部72的上部开口，由此孔部504a1、504a2、504a3与第一阀容纳部71、连结部73以及第二阀容纳部72连通。孔部504b将顶壁45贯通。因此，第四上表面流路504与容纳空间S3经由孔部504b连通，因此流过第四上表面流路504的处理液从孔部504b向外壳40内落下。也可以在孔部504b的下部形成引导筒56(参照图29)。由此，处理液容易从孔部504b朝正下方落下。
如上所述，处理液从形成于第三上表面流路503内的孔部503b和形成于第四上表面流路504内的孔部504b流入外壳40内。像这样流入的处理液如图30中箭头所示沿着外壳40的底壁41(具体而言底壁主体411)流动，之后从开口413被投入至内桶5b。
在第一液剂容纳部20A和第二液剂容纳部20B容纳于外壳40的状态下，在第一液剂容纳部20A和第二液剂容纳部20B各自与后壁44之间形成有空间(落下区域)S3a。处理液在空间S3a内从顶壁45朝向底壁41落下。因此，空间S3a构成投入流路13的一部分。具体而言，空间S3a(特别是孔部503b、504b的下方的区域)在投入流路13中作为供处理液落下的落下区域发挥功能。
如图30所示，第一液剂容纳部20A的下表面211a和第二液剂容纳部20B 的下表面211a面向底壁41，在下表面211a与底壁41之间产生空间S3b。因此，从顶壁45流入容纳空间S3的处理液在空间S3b内朝向开口413流动。因此，第一液剂容纳部20A和第二液剂容纳部20B与外壳40的后壁44和底壁41之间的空间S3b作为处理液的投入流路的一部分(第一部分)发挥功能。上述下表面211a是液剂槽21的底壁211的外表面。
如图23所示，在底壁主体411的第一台阶部411a配置有第一整流部81和第二整流部82。第一整流部81配置于孔部504b的下方，第二整流部82配置于孔部503b的下方。
第一整流部81和第二整流部82是用于抑制由于落下来的处理液与第一台阶部411a碰撞而飞溅等从而导致处理液起泡的部分。
第一整流部81具有多个整流板811。多个整流板811在Y方向上并列地配置。第二整流部82具有多个整流板821。多个整流板821在Y方向上并列地配置。多个整流板811中的邻接的两个整流板811的间隔被设定为能抑制落下来的处理液的飞溅等的间隔。同样地，多个整流板821中的邻接的两个整流板821的间隔被设定为能抑制落下来的处理液的飞溅等的间隔。各整流板811和各整流板821一体地形成于底壁41和后壁44。各整流板811和各整流板821也作为肋发挥功能。各整流板811和各整流板821的材料的例子为树脂。
与利用图5至图8进行了说明的各过程相关联地对利用图10至图30进行了说明的处理液投入装置10中的水、第一液剂以及第二液剂的流动进行说明。
(供水过程)
在供水过程中，打开供水阀V1a、V1b。由此，水从供水管部311流向第一管部312和第二管部313这双方。
第一管部312与第三管部321连通，第二管部313与第四管部322连通。因此，从供水管部311流入第一管部312和第二管部313的水会流向第三管部321和第四管部322。
第三管部321由连结管54a和孔部501a(参照图27)与第一上表面流路501连通。因此，流入第三管部321的水会流入第一上表面流路501。
第四管部322由连结管54b和孔部502a(参照图27)与第二上表面流路502 连通。因此，流入第四管部322的水会流入第二上表面流路502。
在水在第三管部321和第四管部322中流动的情况下，溢流阀V4a和溢流阀V4b打开。因此，流经第三管部321的水的一部分经由内部空间S1流入第五管部323。同样地，流经第四管部322的水的一部分经由内部空间S1流入第五管部323。第五管部323由连结管54c和孔部503a(参照图27)与第三上表面流路503连通。因此，流入第五管部323的水会流入第三上表面流路503。
从第三管部321流入第一上表面流路501的水如图27中实线的箭头所示从孔部501a朝向孔部501b流动。流进孔部501b的水经过孔部501b流入第一背面流路601。流入第一背面流路601的水如图28所示的实线的箭头所示朝向孔部601b流动。孔部601b与第一阀容纳部71相连。因此，流进孔部601b的水会流入第一阀容纳部71。
在水流经第三管部321和第四管部322这双方的情况下，不产生用于从第一液剂容纳部20A取出第一液剂的负压。因此，第六管部46内的止回阀V3a(参照图23)关闭。因此，即使如上所述从第一上表面流路501流入第一背面流路601的水朝向孔部601b流动，也会防止水经过第六管部46流入第一液剂容纳部20A内。
从第四管部322流入第二上表面流路502的水从孔部502a流向孔部502b。流进孔部502b的水经过孔部502b流入第二背面流路602。流入第二背面流路602的水朝向孔部602b流动。孔部602b与第二阀容纳部72相连。因此，流进孔部602b的水会流入第二阀容纳部72。
在水流经第三管部321和第四管部322这双方的情况下，不产生用于从第二液剂容纳部20B取出第二液剂的负压。因此，第七管部47内的止回阀V3b(参照图23)关闭。因此，即使如上所述从第二上表面流路502流入第二背面流路602的水朝向孔部602b流动，也会防止水经过第七管部47流入第二液剂容纳部20B内。
从第五管部323流入第三上表面流路503的水从孔部503a流向孔部503b，之后从孔部503b流入容纳空间S3内。
在水从第一背面流路601流入第一阀容纳部71的情况下，止回阀V2a由于 水压而打开。其结果是，水从第一阀容纳部71的下部流向上部，水经过第一阀容纳部71的上部开口和孔部504a1流入第四上表面流路504。同样地，在水从第二背面流路602流入第二阀容纳部72的情况下，止回阀V2b由于水压而打开。其结果是，水从第二阀容纳部72的下部流向上部，水经过第二阀容纳部72的上部开口和孔部504a2流入第四上表面流路504。在本实施方式中，第一阀容纳部71和第二阀容纳部72由连结部73连接。因此，在第一阀容纳部71和第二阀容纳部72中水从下部流向上部的情况下，水也会流向连结部73内。连结部73内的水经过孔部504a1、504a2、504a3流入第四上表面流路504。
如上所述流入第四上表面流路504的水经过孔部504b流入容纳空间S3内。
从孔部503b流入容纳空间S3内的水和从孔部504b流入容纳空间S3内的水以底壁主体411与第一液剂容纳部20A和第二液剂容纳部20B之间的空间S3a为流路而朝向开口413流动。其结果是，水从开口413投入至内桶5b。
(填充过程)
在填充过程中，关闭供水阀V1a、V1b。由此，在上述供水过程中水所流过的流路会维持填充有水的状态。
(第一液剂取出过程)
在第一液剂取出过程中，如利用图6进行了说明的，仅供水阀V1b打开。因此，流入供水管部311的水仅流向第二管部313而流入第四管部322。流入第四管部322的水通过与供水过程的情况相同的路径流向开口413而被投入至内桶5b。
水仅从供水管部311流向第四管部322，因此通过第四管部322中的第二文丘里部15B处的负压，连结部324内的水朝向第四管部322流动，进而从第四管部322流向第二上表面流路502。由于在连结部324内产生上述水的流动，构成第一主流路12A的第三管部321、第一上表面流路501以及第一背面流路601内的水也经过连结部324流入第四管部322。
在第一背面流路601中，产生了水朝向第一上表面流路501的流动，因此止回阀V3a打开。由此，第一液剂容纳部20A内的第一液剂经过第六管部46流入第一背面流路601。流入第一背面流路601的第一液剂流入第一上表面流路 501。由此，第一液剂填充于第一上表面流路501内。
(第一液剂投入过程和洗净过程)
如利用图7进行了说明的，在第一液剂投入过程和洗净过程中，打开供水阀V1a、V1b这双方。由此，水以与供水过程同样的方式流动，因此在第一液剂取出过程中被取出的第一液剂会与水一起从开口413被投入至内桶5b。
在第一液剂投入过程中被投入的第一液剂是在第一液剂取出过程中填充于第一上表面流路501的第一液剂。因此，从第六管部46前往第一文丘里部15A的第一液剂的流路具有能将应投入的第一液剂充分取出的长度。例如，如图所示，通过形成折回多次的第一上表面流路501，能将应投入的第一液剂充分取出。
(第二液剂取出过程)
在第二液剂取出过程中，如利用图8进行了说明的，仅供水阀V1a打开。因此，流入供水管部311的水仅流向第一管部312而流入第三管部321。流入第三管部321的水通过与供水过程的情况相同的路径流向开口413而被投入至内桶5b。
水仅从供水管部311流向第三管部321，因此通过第三管部321中的第一文丘里部15A处的负压，连结部324内的水朝向第三管部321流动，并从第三管部321流向第一上表面流路501。由于在连结部324内产生上述水的流动。构成第二主流路12B的第四管部322、第二上表面流路502以及第二背面流路602内的水也经过连结部324流入第三管部321。
在第二背面流路602中，产生了水朝向第二上表面流路502的流动，因此止回阀V3b打开。由此，第二液剂容纳部20B内的第二液剂经过第七管部47流入第二背面流路602。由此，第二液剂填充于第二背面流路602。
(第二液剂投入过程和洗净过程)
如利用图9进行了说明的，在第二液剂投入过程和洗净过程中，打开供水阀V1a、V1b这双方。由此，水以与供水过程同样的方式流动，因此在第二液剂取出过程中被取出的第二液剂会与水一起从开口413被投入至内桶5b。
在第二液剂投入过程中被取出的第二液剂是在第二液剂取出过程中贮留于 第二背面流路602的第二液剂。因此，第二背面流路602具有能将应投入的第二液剂充分取出的长度。例如，如图28所示，通过形成折回多次的第二背面流路602，能确保应投入的第二液剂的量。
在处理液投入装置10中，在外壳40所具有的底壁41形成有用于将处理液投入至内桶5b的开口413(投入口13b)。第一液剂容纳部20A和第二液剂容纳部20B的下表面211a面向底壁主体411。在处理液投入装置10中，第一液剂容纳部20A和第二液剂容纳部20B的下表面211a与底壁41之间的空间S3b作为使处理液流向上述开口413的下部流路(本实施方式中投入流路13的一部分)发挥功能。
在处理液投入装置10中，在外壳40所具有的顶壁45形成有第四上表面流路504(上部流路)，为了使流过第四上表面流路504的处理水经过孔部504b流向上述下部流路而使其朝向底壁41落下。
在底壁41中孔部504b的下方配置有第一整流部81。第一整流部81具有并列配置的多个整流板811。因此，从孔部504b落下来的处理液会向邻接的整流板811之间落下。在该情况下，与未配置整流板811的情况相比，会抑制处理液的迸溅，因此处理液不易起泡。其结果是，不易在第一整流部81的下游阻碍处理液的流动。
如上所述不易阻碍处理液的流动，由此会抑制处理液在容纳空间S3内的滞留。因此，能防止从外壳40的漏液、处理液向第一液剂容纳部20A和第二液剂容纳部20B内的混入等。
在一个实施方式中，孔部504b形成于靠后壁44处，下表面211a中靠后壁44处的部分与底壁41(具体而言底壁主体411)之间的长度比后壁44与第一液剂容纳部20A(或第二液剂容纳部20B)之间的长度短。
在该情况下，作为供处理液落下的落下区域的空间S3a比由空间S3b构成的下部流路的入口侧大。因此，从孔部504b落下的处理液在流向开口413时会经过流路截面积小的区域(流路收缩的区域)。在存在流路截面积小的区域的情况下，上述具备第一整流部81的构成是有效的。这一点以与未配置第一整流部81的情况对比的方式进行说明。
在从孔部504b落下之后流向开口413的处理液经过流路截面积小的区域的情况下，会在该区域的跟前(例如空间S3a)滞留处理液。若处理液起泡，则容易在流路截面积小的区域阻碍处理液的流动，因此容易滞留更多处理液。因此，如上所述，可能会产生漏液、处理液向第一液剂容纳部20a和第二液剂容纳部20B内的混入等。
与之相对，在处理液的落下地点配置有第一整流部81的情况下，会由第一整流部81抑制处理液的起泡。由于会抑制处理液的起泡，因此不易阻碍处理液的流动，因此能抑制处理液的滞留。其结果是，能防止漏液、处理液向第一液剂容纳部20a和第二液剂容纳部20B内的混入等。
在图30举例示出的方案中，第一液剂容纳部20A和第二液剂容纳部20B通过向后方滑动而设置于外壳40，底壁41具有朝向开口413下降的区域。在该情况下，如图30所示，处理液的流路在第一液剂容纳部20A和第二液剂容纳部20B的下部后方的角部与底壁主体411之间一度变窄。即，在图30所示的方案中，从孔部504b落下的处理液在流向开口413时会经过流路收缩的区域(流路截面积小的区域)。因此，具备第一整流部81的构成在第一液剂容纳部20A和第二液剂容纳部20B通过向后方滑动而设置于外壳40并且底壁41具有朝向开口413下降的区域的情况下更加有效。
在处理液投入装置10具备旁通流路18的情况下，处理液(水)也会从孔部503b向底壁41落下。在来自孔部503b的处理液的落下地点配置有第二整流部82。与第二整流部82相关的作用效果与第一整流部81的情况同样。即，经过孔部503b的处理液朝向第二整流部82落下。其结果是，会抑制落下时的迸溅，因此处理液不易起泡。其结果是，不易阻碍处理液从第二整流部82朝向开口413的流动。
在处理液投入装置10中，将下表面211a与底壁41之间的空间S3b有效地利用为用于使处理液流向开口413的下部流路。因此，例如无需用于投入处理液的注水软管等，因此能实现处理液投入装置10的省空间化。此外，在处理液投入装置10中，未设置将容纳第一液剂容纳部20A和第二液剂容纳部20B的容纳空间与底壁41隔开的分隔壁。换言之，底壁41本身构成容纳空间S3的底部。因此，下表面211a面向底壁41(具体而言底壁主体411)。在处理液投入装置 10中未设置上述分隔壁，因此与由分隔壁形成容纳空间的情况相比，能实现省空间化。在能实现处理液投入装置10的省空间化的情况下，能使洗衣机1中内桶5b的容量增加。或者，能一边维持内桶5b的容量，一边使洗衣机1的尺寸小型化。
在外壳40具有底壁41、左侧壁42、右侧壁43、后壁44以及顶壁45并且外壳40的前表面开放的方案中，通过例如使第一液剂容纳部20A和第二液剂容纳部20B从外壳40的前表面朝向后壁44滑动，能将第一液剂容纳部20A和第二液剂容纳部20B容纳于容纳空间S3。
在第六管部46(第一液剂取出流路14A)从后壁44向前方突出并且第一液剂容纳部20A能拆装于第六管部46的情况下，例如能通过第一液剂容纳部20A相对于外壳40的滑动动作来实施第一液剂容纳部20A与第六管部46的拆装。具体而言，通过使第一液剂容纳部20A从外壳40的前表面向后方滑动，能将第一液剂容纳部20A所具有的液剂引导流路251连结于第六管部46。相反，通过使第一液剂容纳部20A向前方滑动，能解除第一液剂容纳部20A所具有的液剂引导流路251与第六管部46的连结，能将第一液剂容纳部20A从外壳40卸下。因此，能容易地实施第一液剂容纳部20A向外壳40的设置和第一液剂容纳部20A从外壳40的卸下等。
在第七管部47(第二液剂取出流路14B)从后壁44向前方突出并且第二液剂容纳部20B能拆装于第七管部47的情况下，例如能通过第一液剂容纳部20A相对于外壳40的滑动动作来实施第二液剂容纳部20B与第七管部47的拆装。具体而言，通过使第二液剂容纳部20B从外壳40的前表面向后方滑动，能将第二液剂容纳部20B连结于第七管部47。相反，通过使第二液剂容纳部20B向前方滑动，能解除第二液剂容纳部20B与第七管部47的连结，能将第二液剂容纳部20B从外壳40卸下。因此，能容易地实施第一液剂容纳部20A向外壳40的设置和第一液剂容纳部20A从外壳40的卸下等。
在处理液投入装置10中，如上所述，第一液剂容纳部20A和第二液剂容纳部20B的下表面211a与底壁41之间的空间S3b是处理液的下部流路。由此，即使在将第一液剂容纳部20A从外壳40卸下的情况下例如残留于第一液剂容纳部20A内的逆止阀V5与第六管部46内的逆止阀V3a之间的第一液剂滴至底壁 41，附着于底壁41的第一液剂也会在例如将水作为处理液投入至内桶5b的情况下被冲走。同样地，即使在将第二液剂容纳部20B从外壳40卸下的情况下例如残留于第二液剂容纳部20B内的逆止阀V5与第七管部47内的逆止阀V3b之间的第二液剂滴至底壁41，附着于底壁41的第二液剂也会在例如将水作为处理液投入至内桶5b的情况下被冲走。因此，会抑制第一液剂和第二液剂残存于底壁41并凝固。由此，容易进行外壳40的维护。
在第一液剂或第二液剂的一方为洗涤剂的情况下，若洗涤剂附着于外壳40的底壁41置之不顾的话，会成为产生杂菌/霉菌/异臭的主要原因。在第一液剂容纳部20A和第二液剂容纳部20B的下表面与底壁41之间的空间S3b作为供处理液流过的下部流路(本实施方式中投入流路13的一部分)发挥功能的方案中，附着于底壁41的洗涤剂会在每次洗涤时被冲走。因此，能抑制杂菌/霉菌/异臭的产生。
在处理液投入装置10中，在顶壁45形成有第四上表面流路504(上部流路)，使流过第四上表面流路504的处理水经过孔部504b朝向底壁41落下。在这样的方案中，孔部504b形成于顶壁45中靠后壁44处，因此向底壁41落下的处理液会从后壁44流向开口413。因此，如上所述，即使第一液剂或第二液剂附着于底壁41，也容易使附着的第一液剂或第二液剂流向开口413。在图27所示的方案中，第三上表面流路503也是形成于顶壁45的顶壁流路。流过第三上表面流路503的水(处理液)也经由孔部503b向底壁41落下。因此，通过从第三上表面流路503经过孔部503b落下的水，也能使附着于底壁41的第一液剂或第二液剂流动。
处理液投入装置10具备旁通流路18。因此，能抑制第一文丘里部15A和第二文丘里部15B中的异响。这一点以与不具有旁通流路18的情况对比的方式进行说明。
在内桶5b中，为了对衣服等进行洗涤而向内桶5b投入一定量(例如15升)的水。要被投入内桶5b的水流过第一主流路12A和第二主流路12B。为了取出液剂而在第一主流路12A和第二主流路12B配置有第一文丘里部15A和第二文丘里部15B。在第一文丘里部15A和第二文丘里部15B中，流路收缩。在该情况下，当为了将上述一定量的水投入至内桶5b而导致较多的水流向第一文丘里 部15A和第二文丘里部15B时，第一文丘里部15A和第二文丘里部15B会产生异响。特别是，在第一文丘里部15A和第二文丘里部15B中，从为了取出液剂而产生能吸引液剂的负压并且缩短向内桶5b贮水的时间的角度出发，当增大流过第一文丘里部15A和第二文丘里部15B的水的量时，异响容易变大。
与之相对，处理液投入装置10具备旁通流路18。旁通流路18从第一主流路12A和第二主流路12B中比第一文丘里部15A和第二文丘里部15B靠上游的部分分支并连接于投入流路13。因此，流过第一主流路12A和第二主流路12B的水的一部分会绕过第一文丘里部15A和第二文丘里部15B(换言之，图4所示的负压产生单元U2)而流入投入流路13，之后被投入至内桶5b。在该情况下，能一边确保用于投入至内桶5b的水量，一边降低流过第一文丘里部15A和第二文丘里部15B的水的量。由于能降低流过第一文丘里部15A和第二文丘里部15B的水的量，因此能抑制第一文丘里部15A和第二文丘里部15B中产生异响。
处理液投入装置10能一边抑制异响的产生，一边增大从供水流路11流向第一主流路12A和第二主流路12B的水的量。因此，能缩短用于在内桶5b蓄水的时间，因此能缩短洗涤所需的时间。
在具备上述供水阀V1a、V1b的方案中，能控制在供水阀V1a、V1b的控制下的水向第一主流路12A和第二主流路12B的流动。其结果是，能控制第一文丘里部15A和第二文丘里部15B处产生负压，因此如举例示出的，能在取出第一液剂的情况与取出第二液剂的情况之间进行切换。
上述在旁通流路18设有溢流阀V4a、V4b的方案中，能控制水从第一主流路12A和第二主流路12B向旁通流路18的流动。
在第一液剂取出流路14A设有止回阀V3a并在第二液剂取出流路14B设有止回阀V3b的方案中，能一边防止水从第一液剂取出流路14A向第一液剂容纳部20A流入，一边从第一液剂容纳部20A取出第一液剂，并且，能一边防止水从第二液剂取出流路14B向第二液剂容纳部20B流入，一边从第二液剂容纳部20B取出第二液剂。
在具备流路切换单元U1的方案即具备止回阀V2a、V2b的方案中，能在使 第一主流路12A内的第一液剂流向投入流路13的情况与使第二主流路12B内的第二液剂流向投入流路13的情况之间进行切换。其结果是，能控制向内桶5b投入第一液剂的情况和向内桶5b投入第二液剂的情况。
在利用图6进行了说明的第一液剂取出过程中，将第一液剂从第一液剂容纳部20A取出至第一主流路12A内。在利用图8进行了说明的第二液剂取出过程中，将第二液剂从第二液剂容纳部20B取出至第二主流路12B内。因此，第一主流路12A和第二主流路12B需要将洗涤所必需的量的第一液剂和第二液体材料取出并临时贮存于内部的长度。
在本实施方式中，形成于顶壁45的上表面451的第一上表面流路501是临时贮留从第一液剂容纳部20A取出的第一液剂的第一贮留区域，形成于后壁44的背面441的第二背面流路602是临时贮留从第二液剂容纳部20B取出的第二液剂的第二贮留区域。即，在本实施方式的处理液投入装置10中，将所取出的第一液剂的第一贮留区域和所取出的第二液剂的第二贮留区域配置于外壳40所具有的多个面中的不同的两个面。
因此，与将第一贮留区域和第二贮留区域统一配置于相同的面(例如，顶壁45的上表面451)的情况相比，能减小外壳40的尺寸。其结果是，能实现小型的处理液投入装置10。
背面441通常被认为是无效空间(dead space)。因此，在将第一贮留区域和第二贮留区域的一方配置于背面441的方案中，能有效利用无效空间，减小外壳40的尺寸。
在如图25所示第一液剂容纳部20A内的止回阀V5与配置于第六管部46(第一液剂取出流路14A)的止回阀V3a沿着相同的方向配置的方案中，与例如止回阀V5的配置方向和止回阀V3a的配置方向交叉的情况相比，能使止回阀V5与止回阀V3a之间的距离缩短。止回阀V5的配置方向与止回阀V3a的配置方向交叉的情况的例子是止回阀V5沿着X方向配置而止回阀V3a沿着Z方向配置的情况。
在从第一液剂容纳部20A取出第一液剂的情况下，在止回阀V5与止回阀V3a之间的区域残留有第一液剂。在止回阀V5与止回阀V3a之间的距离短的情 况下，残留的第一液剂的量较少。因此，即使例如将第一液剂容纳部20A从外壳40卸下时第一液剂滴至底壁41，也能减少附着于底壁41的第一液剂的量。其结果是，能减少外壳40的维护的工作量。
基于图25所示的第一液剂容纳部20A内的止回阀V5与止回阀V3a配置关系进行了说明，而第二液剂容纳部20B内的止回阀V5与止回阀V3b沿着相同的方向配置的情况的作用效果也同样。
即使残留于止回阀V5与止回阀V3a之间的第一液剂和残留于止回阀V5与止回阀V3b之间的第二液剂滴至底壁41，如上所述使处理液流向底壁41的开口413的方案也会在每次洗涤时将滴至底壁41的第一液剂和第二液剂冲走。
在一个实施方式中，构成底壁41的一部分的支承板412形成开口413。在如图24所示支承板412的下部向后方倾斜的方案中，处理液从开口413(投入口13b)朝向后方被投入至内桶5b。在该情况下，处理液被投入至内桶5b的内周面侧。根据洗涤物，有时向洗涤物直接供给包含液剂的处理液为好。在如上所述从开口413朝向后方投入处理液的情况下，也容易使处理液附着于内桶5b的周缘附近的洗涤物。
(变形例)
处理液投入装置所具备的液剂容纳部的数量也可以为一个。将液剂容纳部的数量为一个的情况下的处理液投入装置的例子作为变形例进行说明。图31是表示变形例的处理液投入装置10A的概略构成的附图。
如图31所示，处理液投入装置10A具备一个液剂容纳部20。处理液投入装置10A具有从液剂容纳部20取出液剂并将其与水一起作为处理液供给至内桶5b的供给机构。上述供给机构具有容纳液剂容纳部20的外壳。将变形例的供给机构和外壳也称为供给机构30和外壳40。而且，在变形例的供给机构30和外壳40所具有的各元件中，对与上述实施方式的情况相同的元件标注相同的附图标记，省略重复的说明。
处理液投入装置10A所具有的供给机构30具备供水流路11、主流路(中间流路)12以及投入流路13。主流路12使供水流路11与投入流路13相连。供给机构30具备控制水从供水流路11向主流路12的流动的供水阀V1。在主 流路12设有文丘里部15。供给机构30具备连结于液剂容纳部20并且用于取出液剂容纳部20内的液剂的液剂取出流路14。液剂取出流路14与文丘里部15连通。也可以在连结流路19设有流量计17。图31中举例示出了液剂取出流路14与文丘里部15经由连结流路19连接的方案，但图31所示的连结流路19也可以是液剂取出流路14的一部分。
在处理液投入装置10A中，主流路12与投入流路13也绕过文丘里部15由旁通流路18连接。旁通流路18在主流路12中的文丘里部15的上游处连接于主流路12。在旁通流路18设有控制水从主流路12的流动的溢流阀V4。
在上述处理液投入装置10A中，当打开供水阀V1从而水从供水流路11流向主流路12时，会在文丘里部15产生负压。通过该负压，止回阀V3打开，因此液剂容纳部20内的液剂会被抽入至液剂取出流路14。被抽入至液剂取出流路14的液剂经过连结流路19和文丘里部15流入主流路12，并与水一起经由投入流路13的投入口13a被投入至内桶5b。
处理液投入装置10A具备旁通流路18。在水从供水流路11流向主流路12的情况下，溢流阀V4打开。因此，从供水流路11流入主流路12的水的一部分会经过旁通流路18而绕过文丘里部15流入投入流路13。
在处理液投入装置10A中，将主流路12的下游侧或投入流路13的上游侧设为形成于外壳40的顶壁45的上部流路，并将投入流路13的下游侧(投入口13a侧)设为液剂容纳部20与底壁41之间的下部流路，为了使处理液从上部流路流向下部流路，使处理液从顶壁45朝向底壁41落下。在处理液投入装置10A中也在处理液的落下位置配置第一整流部81。由此，处理液投入装置10A也会抑制与落下相伴的处理液的起泡，因此不易阻碍处理液的流动。
在处理液投入装置10A中，如上所述，从供水流路11流入主流路12的水的一部分也会经过旁通流路18而绕过文丘里部15流入投入流路13。因此，能一边确保用于投入至内桶5b的水量，一边降低流过文丘里部15的水的量。由于能降低流过文丘里部15的水的量，因此能抑制文丘里部中产生异响。在变形例中，也可以使旁通流路18的一部分形成于顶壁45。在该情况下，旁通流路18中形成于顶壁45的区域作为上部流路发挥功能。在使水(处理液)从作为旁通流路18的一部分的上部流路向底壁41落下的情况下，可以在落下位置配置 第二整流部82。
以上，对本发明的实施方式进行了说明。然而，本发明并不限定于举例示出的实施方式，本发明意在包括权利要求书所示的范围，并且意在包括与权利要求书同等的含义和范围内的全部变更。
供给机构只要具有能从液剂容纳部取出液剂并且能供处理液流过的流路，并且在上述流路的一部分具有使处理液从上向下落下的区域即可，供给机构也可以不具有旁通流路。
供给机构的一个例子可以具有：供水流路，具有供给水的供水口，用于使经过供水口供给来的水流动；液剂取出流路，用于取出液剂容纳部内的液剂；投入流路，具有用于将处理液投入至洗涤桶的投入口；以及中间流路，使包含流过供水流路的水和由液剂取出流路取出的液剂的处理液流向投入流路。在该情况下，可以将中间流路的下游侧或投入流路的上游侧设为上部流路，并将上述实施方式中说明的液剂容纳部的下表面与外壳的底壁之间的空间设为下部流路(投入流路的一部分)。
在供给机构具有两个液剂容纳部的方案中，在两个液剂容纳部中的一方是容纳第一液剂的第一液剂容纳部并且另一方是容纳第二液剂的第二液剂容纳部的情况下，供给机构的一个例子可以具有两个上述中间流路和两个上述液剂取出流路。在该情况下，可以是，两个上述液剂取出流路中的一方是用于取出上述第一液剂的第一液剂取出流路，另一方是用于取出上述第二液剂的第二液剂取出流路，两个上述中间流路中的一方是使流过上述供水流路的上述水和由上述第一液剂取出流路取出的上述第一液剂流向上述投入流路的第一中间流路，另一方是使流过上述供水流路的上述水和由上述第二液剂取出流路取出的上述第二液剂流向上述投入流路的第二中间流路。在该情况下，可以将第一中间流路和第二中间流路的下游侧设为上部流路或将投入流路的上游侧设为上部流路，并将上述实施方式中说明的液剂容纳部的下表面与外壳的底壁之间的空间设为下部流路(投入流路的一部分)。
在如上所述具有第一中间流路和第二中间流路的方案中，供给机构也可以具有控制水从供水流路向第一中间流路和第二中间流路的流动的供水阀。在如上所述具有第一中间流路和第二中间流路的方案中，供给机构可以具有能对处 理液从第一中间流路和第二中间流路向上述投入流路的流动进行切换的流路切换单元。
例如，液剂容纳部的数量也可以为三个以上。作为供水部和负压产生部发挥功能的元件也可以一体地设于外壳。
以上说明的各种实施方式和变形例也可以在不脱离本发明的主旨的范围内适当组合。
本公开的主要内容如以下的[1]～[4]所示。
[1]一种处理液投入装置，具有：
液剂容纳部；以及
供给机构，将容纳于所述液剂容纳部的液剂与水一起作为处理液供给至洗涤桶，
所述供给机构具有：
流路，供所述处理液流过；以及
整流部，
所述流路具有供流过所述流路的所述处理液从上向下落下的落下区域，
所述流路在所述落下区域的下游具有所述流路收缩的部分，
所述整流部配置于所述落下区域中所述处理液的落下地点，
所述整流部具有并列配置的多个整流板。
[2]根据[1]所述的处理液投入装置，其中，
所述供给机构具有：外壳，形成有容纳所述液剂容纳部的容纳空间，
所述外壳具有：
底壁；
顶壁，与所述底壁对置；
后壁，使所述底壁与所述顶壁相连；
第一侧壁，使所述底壁、所述顶壁以及所述后壁相连；以及
第二侧壁，使所述底壁、所述顶壁以及所述后壁相连，并与所述第一侧壁对置，
所述容纳空间由所述底壁、所述顶壁、所述后壁、所述第一侧壁以及所述第二侧壁形成，
在所述底壁形成有用于将所述处理液投入至所述洗涤桶的投入口，
所述液剂容纳部的下表面面向所述底壁，
所述下表面与所述底壁之间的空间是用于使所述处理液流向所述投入口的流路，
所述流路具有：
上部流路，形成于所述顶壁；以及
下部流路，由所述液剂容纳部的下表面与所述底壁之间的空间构成，
在所述顶壁形成有用于使流过所述上部流路的所述处理液通过向所述底壁落下而流向所述下部流路的孔部，
所述整流部配置于所述底壁中所述孔部的下方。
[3]根据[2]所述的处理液投入装置，其中，
所述孔部形成于所述顶壁中靠所述后壁处，
所述下表面中靠所述后壁处的部分与所述底壁之间的长度比所述后壁与所述液剂容纳部之间的长度短。
[4]一种洗衣机，具备：
洗涤桶；以及
如[1]～[3]中任一项所述的处理液投入装置。

Claims (4)

  1. 一种处理液投入装置，具有：
    液剂容纳部；以及
    供给机构，将容纳于所述液剂容纳部的液剂与水一起作为处理液供给至洗涤桶，
    所述供给机构具有：
    流路，供所述处理液流过；以及
    整流部，
    所述流路具有供流过所述流路的所述处理液落下的落下区域，
    所述整流部配置于所述落下区域中所述处理液的落下地点，
    所述整流部具有并列配置的多个整流板。
  2. 根据权利要求1所述的处理液投入装置，其中，
    所述供给机构具有：外壳，形成有容纳所述液剂容纳部的容纳空间，
    所述外壳具有：
    底壁；
    顶壁，与所述底壁对置；
    后壁，使所述底壁与所述顶壁相连；
    第一侧壁，使所述底壁、所述顶壁以及所述后壁相连；以及
    第二侧壁，使所述底壁、所述顶壁以及所述后壁相连，并与所述第一侧壁对置，
    所述容纳空间由所述底壁、所述顶壁、所述后壁、所述第一侧壁以及所述第二侧壁形成，
    在所述底壁形成有用于将所述处理液投入至所述洗涤桶的投入口，
    所述流路具有：
    上部流路，形成于所述顶壁；以及
    下部流路，由所述液剂容纳部的下表面与所述底壁之间的空间构成，
    在所述顶壁形成有用于使流过所述上部流路的所述处理液通过向所述底壁落下而流向所述下部流路的孔部，
    所述整流部配置于所述底壁中所述孔部的下方。
  3. 根据权利要求2所述的处理液投入装置，其中，
    所述孔部形成于所述顶壁中靠所述后壁处，
    所述下表面中靠所述后壁处的部分与所述底壁之间的长度比所述后壁与所述液剂容纳部之间的长度短。
  4. 一种洗衣机，具备：
    洗涤桶；以及
    如权利要求1～3中任一项所述的处理液投入装置。
PCT/CN2024/082110 2023-05-25 2024-03-18 处理液投入装置和洗衣机 Ceased WO2024239776A1 (zh)

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JP2005065908A (ja) * 2003-08-22 2005-03-17 Matsushita Electric Ind Co Ltd 洗濯機
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WO2022070753A1 (ja) * 2020-10-01 2022-04-07 パナソニックＩｐマネジメント株式会社 洗濯機
WO2022224678A1 (ja) * 2021-04-21 2022-10-27 パナソニックＩｐマネジメント株式会社 洗濯機
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001340688A (ja) * 2000-05-31 2001-12-11 Toshiba Corp 洗濯機
JP2005065908A (ja) * 2003-08-22 2005-03-17 Matsushita Electric Ind Co Ltd 洗濯機
CN101481864A (zh) * 2008-12-26 2009-07-15 南京乐金熊猫电器有限公司 滚筒洗衣机
WO2017017976A1 (ja) * 2015-07-30 2017-02-02 シャープ株式会社 洗濯機
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