JP7170596B2 - washing machine - Google Patents

Description

Embodiments of the present invention relate to washing machines.

For example, a drum-type washing machine generally has a drawer-type storage case for detergent, etc., in the upper front part of the main body, and the user stores the required amount of detergent and fabric softener in the storage case for detergent, etc. before starting washing. By keeping them in place, they are supplied into the water tank together with the water supply during the washing operation. In recent years, in order to meet the user's demand for improved convenience, in addition to the storage case for manual detergents, etc., laundry processing agents such as detergents and fabric softeners are stored in advance in a tank for multiple times, and can be used during the washing operation. It has been considered to provide an automatic feeding device for automatically feeding the required amount from the tank into the water tank by driving the pump (see, for example, Patent Document 1).

International Publication No. 2019/039140

A conventional automatic injection device directly discharges a detergent or a softening agent into a water channel extending from an outlet of a water supply valve for automatic injection. At this time, if the detergent or softener remains in the water passage, the detergent or softener may enter the water supply valve side as the water flows back and deteriorate the packing.
Therefore, the present invention provides a washing machine equipped with an automatic feeding device for the laundry treatment agent and capable of preventing the backflow of the laundry treatment agent to the water supply valve side.

A washing machine according to an embodiment includes a water tank provided in a main body for storing washing water, at least an automatic water supply valve, a water supply mechanism for supplying water from a water supply source to the water tank through a water injection case, and a washing machine. It has a tank for storing the treatment agent and a pump for pumping out a required amount of the laundry treatment agent from the tank, and supplies the laundry treatment agent together with water to the water injection case through the automatic water supply path when the automatic water supply valve is opened. an automatic feeder, wherein the automatic feeder path of the automatic feeder has an inlet end connected to the outlet of the automatic feeder valve, an outlet end connected to the water injection case, and the automatic feeder path A discharge portion for the laundry treatment agent by the pump is arranged in the middle of the above, and the discharge portion is arranged at a position lower than the inlet end portion.

A perspective view showing an embodiment and showing an appearance of a drum-type washing machine. Left side view of water supply mechanism Top view of the water supply mechanism part shown with the storage case drawn out Perspective view from the right showing the water injection case part in a broken state Vertical rear view of the automatic loading device Perspective view of the first joint member portion Block diagram showing electrical configuration Time chart showing the ON/OFF control status of each water supply valve at the start of water supply when manual input of laundry treatment agent is set

An embodiment applied to a drum-type washing machine will be described below with reference to the drawings. FIG. 1 shows the appearance of a drum-type washing machine as a washing machine according to this embodiment. Here, a main body 1 constituting an outer box of the drum-type washing machine has a substantially rectangular box shape, and a circular doorway 2 for loading and unloading clothes is positioned substantially at the center of the front surface of the main body 1. is provided, and a door 3 is attached so as to be able to open and close for opening and closing the doorway 2.

A power switch 4 and an operation panel 5 are provided on the front right portion of the upper surface of the main body 1 . Although not shown in detail, the operation panel 5 is provided with a start key and various operation keys for the user to set the washing operation course. At this time, in executing the washing operation, the user either automatically puts in the laundry treatment agent, that is, the detergent and the softener using the automatic injection device 17 described later, or manually uses the manual supply mechanism 19 to manually supply the detergent for one time. or a softener can be selected and operated on the operation panel 5. - 特許庁A display unit 6 is provided on the operation panel 5 . Although not shown, the display unit 6 displays necessary information such as the washing course of the washing operation to be executed and the washing operation time.

Although not shown, in the main body 1, a substantially cylindrical water tank with an open front surface, communicating with the entrance 2 and storing washing water, is elastically supported through an elastic support mechanism. . A drum is provided in the water tub as a storage tub in which clothes are stored. This drum has a cylindrical shape with a diameter slightly smaller than that of the water tank, and its center portion on the back side is connected to a drive mechanism comprising a drum motor 7 (shown only in FIG. 7) and the like to be rotationally driven. Further, in the main body 1, a water supply mechanism 8 is provided at the upper left part of the water tank for supplying water to the water tank. This water supply mechanism 8 will be described later. A drain port is provided at the bottom of the water tank, and a drain pipe is connected to the drain port via a drain valve 9 (shown only in FIG. 7).

Although not shown, a drying mechanism for circulating and supplying hot air for drying is provided in the main body 1 in the water tank and further in the drum. This drying mechanism includes a drying air circulation duct that forms an air passage outside the water tank, and a drying unit 10 (only shown in FIG. 7) that dehumidifies and heats the circulation air to generate drying air. ). The drying unit 10 is configured, for example, by incorporating a heat pump and a blower in a case. Further, in the main body 1, there are various sensors 11 (only shown in FIG. 7) such as a water level sensor for detecting the water level in the water tank, a temperature sensor for detecting the temperature inside the drum, and a rotation sensor for detecting the rotation position of the drum motor 7. ) are also provided.

Here, the water supply mechanism 8, the automatic charging device 17, and the manual charging mechanism 19 will be described. As shown in FIGS. 2 to 4 and the like, the water supply mechanism 8 includes a water supply valve unit 12 provided at the rear of the upper left side of the main body 1, and a water injection case 13 provided at the front of the upper left side of the main body 1. , an automatic water supply path 14 and a manual water supply path 15 leading from the water supply valve unit 12 to the water supply case 13, and a water supply hose 16 for supplying water from the water supply case 13 into the water tank.

At the upper left portion of the main body 1, an automatic input device 17 is provided for automatically inputting liquid detergent and softener as laundry treatment agents into the water tank through the water injection case 13 together with the water supply mechanism 8. ing. Furthermore, when the user puts detergent (liquid or powder) and fabric softener as laundry treatment agents for one time in advance into the storage case 18 as the manual storage unit, the detergent and fabric softener are supplied together with the water supply. A manual input mechanism 19 for supplying water into the water tank is incorporated.

As shown in FIGS. 2 and 3, the water supply valve unit 12 includes a plurality of water supply valves that electromagnetically open and close on a frame 12a. In this embodiment, an automatic water supply valve 21 and a manual detergent water supply valve 22 are provided on the left and right sides of the frame 12a (see FIG. 3), and a manual softener A water supply valve 20 (see FIG. 2) is provided. Further, as shown in FIG. 1, a connection port 23 is provided on the upper portion of the water supply valve unit 12 so as to be exposed from the upper surface of the main body 1, and a water faucet as a water supply source is connected to the connection port 23. be done. Although not shown in detail, the connection port 23 branches downward into three and is connected to the inlets of the water supply valves 20 to 22, respectively.

Also, the outlet of the automatic water supply valve 21 is connected to the inlet of the automatic water supply path 14 . The outlet of the manual detergent water supply valve 22 is connected to the inlet of the detergent channel in the manual water supply path 15, and the outlet of the manual softener water supply valve 20 is connected to the manual water supply path 15. It is connected to the inlet of the softener channel. The automatic water supply path 14 and the manual water supply path 15 will be described later. As shown in FIG. 3, on the right side of the water supply valve unit 12, a bath water pump 24 for pumping up remaining bath water is incorporated.

As shown in FIGS. 2 and 3, the water injection case 13 is made of plastic in the shape of a rectangular box with an open top, and is arranged at the left end on the upper front side in the main body 1 . A flow path forming member 25 that constitutes the manual water supply path 15 is arranged at the top opening of the water injection case 13 . Although not shown in FIG. 3, the upper surface of the flow path forming member 25 is covered with a lid member. As shown in FIG. 4, the bottom portion of the water injection case 13 is gently inclined downward toward the rear, and the tip portion of the water supply hose 16 is connected to the lower rear end portion of the water supply hose 16. The rear end is connected to a water inlet of a water tank (not shown). The front surface of the water injection case 13 is provided with an opening through which the storage case 18 is inserted and withdrawn, and the opening faces an opening in the upper left portion of the front surface inside the main body 1 .

As shown in FIG. 3, the storage case 18 is made of plastic, and has a detergent storage portion 18a for manual use and a softener storage portion 18b for manual use, both of which are formed in the shape of a thin container whose upper surface is open and which is slightly elongated in the front-rear direction. They are integrally arranged side by side. The manual detergent storage section 18a stores, for example, a single dose of detergent, that is, liquid detergent or powder detergent, and the manual softener storage section 18b stores a single dose of softener called a softer as needed. to be accommodated. As shown in FIG. 4, the manual detergent storage portion 18a is opened at the rear end thereof to serve as a detergent discharge portion. Further, although not shown in detail, the manual softener container 18b has a so-called siphon-type discharge section.

The storage case 18 is of a so-called drawer type, which is provided in the water injection case 13 so that it can be taken in and out from the front side. At this time, a front door 26 having a handle portion 26a is connected to the front end portion of the storage case 18. As shown in FIG. The storage case 18 has a storage position (see FIG. 1, etc.) where the front door 26 closes the upper left front opening in the main body 1, and a drawer position (see FIG. 3), where the front door 26 is pulled forward from the storage position. It is possible to put in and take out between them. As also shown in FIG. 4, the storage case 18 is arranged in the upper part of the water injection case 13 in the storage position.

The manual water supply path 15, as shown in FIG. After that, it is provided so as to bend to the left and reach the upper part of the water injection case 13 . As described above, the manual water supply path 15 has two channels, the detergent channel 27 and the softener channel 28, by dividing the upper surface of the plastic channel forming member 25 by ribs. configured with

Among them, the detergent channel 27 has an inlet 27a connected to the outlet of the manual detergent water supply valve 22 and extends to the upper left portion of the water injection case 13, i.e., above the manual detergent storage portion 18a of the storage case 18, The left and right portions have a plurality of small-diameter water spray holes 27b arranged in the front-rear direction. The softening agent flow path 28 has an inlet portion 28 a connected to the outlet portion of the manual softening agent water supply valve 20 and is located at the upper right portion of the water injection case 13 , that is, above the manual softening agent accommodating portion 18 b of the accommodating case 18 . , and has three slightly large water injection holes 28b arranged in front and back.

The manual supply mechanism 19 is configured by the above configuration. In the manual supply mechanism 19, when the manual detergent water supply valve 22 is opened, the tap water supplied from the connection port 23 passes through the detergent flow path 27 of the manual water supply path 15 and is discharged from the water spray hole 27b. Water is poured into the manual detergent storage portion 18a of the storage case 18 in the form of a shower. The water supplied to the manual detergent storage part 18a flows to the bottom of the water injection case 13 while dissolving the stored detergent, and is supplied through the water supply hose 16 into the water tank.

Further, in the manual supply mechanism 19, when the manual softener water supply valve 20 is opened, the tap water supplied from the connection port 23 passes through the softener flow path 28 of the manual water supply path 15, Water is poured into the manual softener storage portion 18b of the storage case 18 through the water injection hole 28b. The water supplied to the manual softening agent storage part 18b is supplied from the water injection case 13 through the water supply hose 16 into the water tank while dissolving the stored softening agent.

Now, the automatic loading device 17 will be described. As shown in FIGS. 2 and 3, the automatic injection device 17 includes a tank case 29 provided behind the water injection case 13 and a pump 30 provided behind it. The tank case 29 has a box-like shape with an open upper surface and is slightly elongated in the front-rear direction. As shown in FIG. 32 are arranged side by side and can be taken out upward.

In this case, the detergent tank 31 contains a liquid detergent that can be used for multiple washings, and the softener tank 32 contains a softener that can be used for multiple washings. As shown in FIG. 1, the upper surface of the main body 1 is provided with a loading/unloading opening 33 corresponding to the top surface of the tank case 29 and a lid 34 for opening and closing the loading/unloading opening 33 . The user can open the lid 34 and take out the detergent tank 31 and the softener tank 32 upward to replenish the detergent and softener.

The pump 30 has two left and right suction ports 30a and 30b (see FIG. 6) facing forward, and has two left and right discharge ports 30c and 30d (see FIG. 5) facing downward. It is configured. The pump 30 is configured to switch suction ports 30a and 30b for sucking liquid and discharge ports 30c and 30d for discharging liquid by switching the rotation direction (energization direction) of the motor. As shown in FIG. 5, the two discharge ports 30c and 30d of the pump 30 are arranged above a discharge part in the middle of the automatic water supply path 14, which will be described later.

At this time, one side of the pump 30, that is, the left suction port 30a is connected to the detergent tank 31 side, and the one-way rotation of the motor draws up the detergent from the detergent tank 31 and discharges it from one side, that is, the left side discharge port 30c. It is configured. The other, i.e., the right suction port 30b of the pump 30 is connected to the softener tank 32 side, and by rotating the motor in the other direction, the softener in the fabric softener tank 32 is pumped up and discharged from the other, i.e., the right outlet 30d. is configured to Depending on the driving time of the pump 30, the amount of detergent or softener to be discharged, that is, the amount of supply to the discharge part in the middle of the automatic water supply path 14 is controlled.

By driving the pump 30, the automatic input device 17 can supply a required amount of the detergent stored in the detergent tank 31 to the discharge part, and the detergent stored in the softener tank 32 A required amount of the softening agent that has been stored can be supplied to the discharge part. As will be described later, when the automatic water supply valve 21 is turned on and water is supplied to the automatic water supply path 14 in a state where detergent or softener is being supplied to the discharge portion by driving the pump 30, the water is supplied. is mixed with detergent or softener in the discharge part, flows while dissolving them, and is supplied into the water tank through the water injection case 13 and the like.

The automatic water supply path 14 is constructed as follows. That is, as shown in FIG. 2 and the like, the automatic water supply path 14 includes a first joint member 35, a second joint member 36, and a connection hose 37 connecting them. Among them, the first joint member 35 is located in the lower part between the water supply valve unit 12 and the tank case 29, and as shown in FIG. It includes a case portion 35a having a shape, an inlet pipe 35b, and an outlet pipe portion 35c.

At this time, as shown in FIG. 5, discharge ports 30c and 30d of the pump 30 are connected to the upper surface of the case portion 35a, and the inside of the case portion 35a into which the laundry treatment agent drops is used as a discharge portion. , a mixing space 38 in which the laundry treatment agent and water are mixed. As shown in FIG. 6, the inlet pipe 35b extends upward from the rear end portion on the right side of the upper surface of the case portion 35a. It is connected to the outlet of the water supply valve 21 . The outlet pipe portion 35c is provided so as to protrude forward from the front left end portion of the case portion 35a.

Thus, the mixing space 38 of the case portion 35a, which is the discharge portion of the laundry treatment agent by the pump 30, is arranged at a position lower than the inlet end of the upper end of the inlet pipe 35b. In addition, in the present embodiment, the outlet pipe portion 35c is configured to have a flow path diameter larger than that of the inlet pipe 35b. Although not shown in detail, the inner bottom portion of the case portion 35a slopes gently downward toward the left front outlet pipe portion 35c, and all the liquid in the mixing space 38 is discharged from the outlet pipe portion 35c. It is designed to be discharged from

The second joint member 36 is configured in an L shape when viewed from above, and one end is connected to a connection hole 13a (see FIG. 4) provided in the lower portion of the left side wall portion which is the peripheral wall portion of the water injection case 13. and constitutes the outlet end of the automatic water supply path 14 . As shown in FIG. 4, the connection hole 13a is located below the accommodating case 18. As shown in FIG. The other end side of the second joint member 36 is arranged rearward along the side wall of the water injection case 13, and as shown in FIG. The connecting hose 37 is connected to the other end of the joint member 36 . The connection hole 13a is provided at a position slightly lower than the outlet pipe portion 35c, and the connecting hose 37 gently slopes forward.

As a result, in the automatic water supply path 14, when the automatic water supply valve 21 is opened, the tap water supplied from the connection port 23 flows from the inlet pipe 35b of the first joint member 35 into the case portion 35a, that is, the case portion 35a. It flows into the mixing space 38 and mixes with detergent or fabric softener, if one has been supplied to the dispenser. The mixed washing water is discharged from the outlet pipe portion 35c, passes through the connecting hose 37, flows through the second joint member 36, and flows into the lower part of the water injection case 13 from the connecting hole 13a. Then, it flows rearward under the storage case 18 and is supplied into the water tank through the water supply hose 16 .

Further, as shown in FIG. 7, the main body 1 is provided with a control device 41 mainly composed of, for example, a microcomputer for controlling the entire washing machine including the water supply mechanism 8 . The control device 41 operates the water supply valves 21 of the water supply valve unit 12 based on input signals from various sensors 11 and pre-stored control programs according to the operation course set by the user on the operation panel 5. 21, 22, the pump 30 of the automatic loading device 17, the drum motor 7, the drain valve 9, the drying unit 10 and the like. Thus, a washing operation consisting of a washing process, a rinsing process, and a dehydration process, and a drying operation are automatically executed. The details of each process of the washing operation and the drying operation are well known, so the explanation is omitted here.

In the present embodiment, when executing the washing operation, the user either automatically puts in the detergent and softener with the automatic put-in device 17, or manually uses the storage case 18 of the manual put-in mechanism 19 for one time. On the operation panel 5, it is possible to select whether to put in detergent or fabric softener. When the user selects manual input, the user stores a required amount of powder detergent or liquid detergent in advance in the manual detergent storage portion 18a of the storage case 18 when starting the washing operation. When a softening agent is used, a required amount of softening agent is put into the manual softening agent container 18b together with the detergent.

When the automatic injection of the detergent and the softener is selected, the control device 41 supplies the required amount of detergent to the discharge part by the automatic injection device 17 before starting the water supply in the washing process, and then the automatic injection. Water is supplied by turning on the water supply valve 21 . In addition, before the final rinsing process, the automatic supply device 17 supplies a required amount of softener to the supply section, and then the automatic water supply valve 21 is opened to supply water. The water supply is carried out so that the water level in the water tank corresponds to the amount of laundry on the basis of the result of detection of the amount of laundry in the drum.

On the other hand, when manual input of detergent and softener is selected, the control device 41 supplies water for the washing process by the manual detergent water supply valve 22 without operating the automatic input device 17. Run. Then, at the time of water supply in the final rinsing process, water is supplied by opening the manual softener water supply valve 20 . At this time, in the present embodiment, as will be described in detail in the following description of operation, when water supply is started in the washing process, the automatic water supply valve 21 is first opened, and then, for example, after two seconds have elapsed, the manual detergent water supply valve 22 is opened. control such as Further, after a predetermined time, for example, 18 seconds, has elapsed since the manual detergent water supply valve 22 was opened, the automatic water supply valve 21 is closed and water is supplied only by the manual detergent water supply valve 22 .

Next, the operation and effects of the washing machine having the above configuration will be described with reference to FIG. 8 as well. In preparation for using the automatic input device 17, the user stores detergent in the detergent tank 31 and stores softener in the softener tank 32. As shown in FIG. In executing the washing operation in the washing machine, the user operates the power switch 4 to turn on the power and put the clothes in the drum. Along with this, a driving course is selected by the operation panel 5 .

At this time, if the manual input of the detergent and the softener is selected, the user pulls out the drawer-type storage case 18, stores the required amount of detergent in the manual detergent storage portion 18a, and the manual softener. A required amount of fabric softener is put into the housing portion 18b, and after the front door 26 is closed, the washing operation is started. On the other hand, if automatic injection of detergent and softener is selected, the washing operation can be started as it is.

When the washing operation is started, the control device 41 controls each mechanism of the washing machine to automatically perform the well-known washing operation consisting of washing, rinsing, and spin-drying processes. At this time, in the washing process, water is first supplied to the water tank up to a predetermined water level. , a required amount of detergent is supplied to the discharge portion, ie, the mixing space 38 in the middle of the water supply path 14 for automatic use. In the water supply operation, the automatic water supply valve 21 is opened.

When the automatic water supply valve 21 is opened, water from the water supply source is supplied to the automatic water supply path 14 . At this time, the detergent flows from the inlet pipe 35b of the first joint member 35 into the mixing space 38 of the case portion 35a and is mixed with the detergent supplied to the discharge portion. The mixed washing water flows from the outlet pipe portion 35c through the connecting hose 37, through the second joint member 36, and from the connecting hole 13a into the lower part of the water injection case 13. As shown in FIG. Then, it flows backward under the storage case 18 and is supplied into the water tank through the water supply hose 16 . As a result, the washing water in which the detergent is dissolved is automatically supplied to the water tank, and the washing process is executed.

On the other hand, when the manual detergent input is selected, the controller 41 controls both the manual detergent water supply valve 22 and the automatic detergent water supply valve 21 during water supply in the washing process, as shown in FIG. Water is supplied using That is, when water supply is started (time 0 seconds), the automatic water supply valve 21 is first turned on. 22 will be turned on. After that, both the automatic water supply valve 21 and the manual detergent water supply valve 22 remain on until the time 20 seconds. remains on.

Thus, when the automatic water supply valve 21 is turned on, first, only water from the water supply source flows into the lower part of the water injection case 13 through the connection hole 13a through the automatic water supply path 14. . Subsequently, when the manual detergent water supply valve 22 is turned on, water from the water supply source passes through the detergent flow path 27 of the manual water supply path 15, and flows from the spray hole 27b into the manual detergent storage portion 18a of the storage case 18. Water is poured like a shower. The water dissolves the powdered detergent contained in the manual detergent container 18a, turns into washing water, flows to the bottom of the water injection case 13, and passes through the water supply hose 16 together with the water from the automatic water supply path 14. supplied into the water tank.

At this time, the water that has passed through the automatic water supply path 14 flows through the bottom of the water injection case 13 below the storage case 18, and a so-called barrier is provided by the water flow. Therefore, the powder detergent flowing down from the rear portion of the manual detergent storage portion 18a of the storage case 18 does not go to the front side of the inner bottom of the water injection case 13, and thus adheres to the inner wall of the water injection case 13 and the outer bottom surface of the storage case 18. It can be flushed without residue. Thereafter, as shown in FIG. 8, the manual detergent water supply valve 22 is once turned off at time 42 seconds, and from time 47 seconds, the same control as at the beginning is performed. After time 49 seconds, water is supplied with the automatic water supply valve 21 and the manual detergent water supply valve 22 turned on. The water supply valve 21 and the manual detergent water supply valve 22 are turned off, and the washing process is executed.

After that, the process progresses, and before water supply for the final rinsing process, the pump 30 of the automatic detergent input device 17 is driven if the automatic detergent input is selected, and this time the detergent is supplied to the mixing space 38. A required amount of fabric softener is provided. After that, the automatic water supply valve 21 is opened, and the water flowing through the automatic water supply path 14 flows while dissolving the softener in the mixing space 38 , and the washing water containing the softener flows through the water injection case 13 . water is supplied into the water tank, and a final rinsing process is performed.

On the other hand, when manual input is selected, water supply in the final rinse process is performed by opening the manual softener water supply valve 20 . When the manual softener water supply valve 20 is opened, water passes through the softener flow path 28 of the manual water supply path 15 and is injected into the manual softener storage portion 18b of the storage case 18 through the water injection hole 28b. The water supplied to the manual softening agent storage part 18b is supplied from the water injection case 13 through the water supply hose 16 into the water tank while dissolving the stored softening agent. When the water supply of a predetermined water level is completed, the final rinsing process is performed.

Here, in the present embodiment, in the above-described automatic water supply path 14, the laundry treatment agent by the pump 30 is supplied more than the inlet end of the upper end of the inlet pipe 35b connected to the outlet of the automatic water supply valve 21. The discharge or mixing space 38 is located at a lower position. Therefore, the flow of water from the discharge part toward the inlet end side and further towards the automatic water supply valve 21 side is less likely to occur, and even if the washing treatment agent remains in the automatic water supply path 14, the washing treatment agent will be automatically discharged. It is possible to prevent backflow to the water supply valve side 20 for the water supply. As a result, according to this embodiment, it is possible to prevent the laundry treatment agent from flowing back to the automatic water supply valve 21 side in the automatic feeding device 17 for the laundry treatment agent. 21 can be prevented from occurring.

At this time, in the present embodiment, a mixing space 38 in which the laundry treatment agent pumped out by the pump 30 and the water flowing from the automatic water supply valve 21 are mixed is provided in the discharge part in the middle of the automatic water supply path 14 . It was configured to be provided. As a result, the washing treatment agent and water are mixed in the mixing space 38 in the middle of the automatic water supply path 14, and the washing treatment agent is well dissolved in the water, and the water injection case 13 and eventually the water tank are mixed. can be supplied to The performance of the detergent can be fully exhibited, and detergent residue in the automatic water supply path 14 can also be suppressed. Since the discharge ports 30c and 30d of the pump 30 can be washed away by supplying water to the mixing space 38, it is possible to prevent the detergent and softener from sticking to the discharge ports 30c and 30d.

In this embodiment, the outlet end of the automatic water supply path 14, ie, the second joint member 36, is connected to the connection hole 13a in the lower portion of the peripheral wall of the water injection case 13, so that the water is supplied to the lower part of the storage case 18. configured to flow. As a result, even if the laundry treatment agent, especially the powdered detergent, remains in the lower part of the water injection case 13 or the outer bottom of the storage case 18 when it is manually added, the water flows below the storage case 18 when it is automatically added. Thus, the adhering laundry treatment agent can be discharged from the water injection case 13 .

Moreover, in this embodiment, when the detergent is supplied by the manual supply mechanism 19, the control device 41 is controlled to first open the automatic water supply valve 21 and then open the manual water supply valve 22 at the start of water supply. configured to do As a result, while the water from the automatic water supply path 14 flows in the lower part of the water injection case 13, the detergent in the storage case 18 can be caused to flow by the manual supply mechanism 19. It can be effectively prevented from remaining in the lower part.

Furthermore, in the present embodiment, the first joint member 35 constituting the automatic water supply path 14 has a flow passage diameter of the outlet pipe portion 35c larger than that of the inlet pipe 35b. The diameter of the flow path is configured to be larger. As a result, the diameter of the flow path on the outlet side of the automatic water supply path 14 is relatively large, so that the laundry treatment agent and water can be easily discharged. In addition, since the diameter of the inlet side of the automatic water supply path 14 is relatively small, the flow rate of the water flowing inside the first joint member 35 can be increased, and the laundry treatment agents can be effectively mixed. and the laundry treatment agent can be washed off very well.

In the above embodiment, when the detergent is supplied by the manual supply mechanism 19, the automatic water supply valve 21 and the manual water supply valve 22 are controlled as shown in FIG. may be executed as necessary, and the water supply may be performed only by the manual water supply valve 22 . The automatic water supply valve 21 may be turned on even after the time 20 seconds. The time in FIG. 8 is merely an example, and can be changed as appropriate. Various modifications are also possible for the specific configuration of the automatic water supply route and the manual water supply route.

The configuration of the automatic loading device is not limited to the above-described embodiment, and the following modifications are possible. That is, a piston pump may be adopted as the pump used to transfer the detergent, or the detergent may be supplied by opening and closing an electromagnetic valve. Although the detergent tank and the fabric softener tank are provided, it may be configured such that only the detergent as the laundry treatment agent or only the fabric softener is automatically supplied. In addition, in the above embodiment, it is applied to a drum-type washing machine with a drying function, but it can also be applied to a so-called vertical axis type washing machine, and a washing machine without a drying function may be used. . Various changes are also possible for the shape and structure of the storage case, the configuration of the water supply route, and the like.

While several embodiments of the invention have been described above, these embodiments are provided by way of example and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and modifications can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the scope of the invention described in the claims and equivalents thereof.

In the drawings, 1 is a main body, 8 is a water supply mechanism, 12 is a water supply valve unit, 13 is a water injection case, 13a is a connection hole, 14 is an automatic water supply path, 15 is a manual water supply path, 17 is an automatic feeding device, and 18 is an automatic feeding device. Storage case (manual storage unit), 18a is a manual detergent storage unit, 18b is a manual softener storage unit, 19 is a manual supply mechanism, 20 is a manual softener water supply valve, 21 is an automatic water supply valve, and 22 is an automatic water supply valve. 23 is a connection port, 25 is a channel forming member, 27 is a detergent channel, 28 is a softener channel, 29 is a tank case, 30 is a pump, 30a and 30b are suction ports, and 30c. 30d is a discharge port; 31 is a detergent tank; 32 is a softener tank; 35 is a first joint member; 35a is a case portion; 37 is a connecting hose, 38 is a mixing space, and 41 is a control device.

Claims (5)

a water tank provided in the main body for storing washing water;
a water supply mechanism having at least an automatic water supply valve for supplying water from a water supply source to the water tank through the water injection case;
It has a tank for storing the laundry treatment agent and a pump for pumping out a required amount of the laundry treatment agent from the tank, and when the automatic water supply valve is opened, the laundry treatment agent and water are supplied to the water injection case through the automatic water supply path. an automatic feeder, wherein an inlet end of an automatic water supply path of the automatic feeder is connected to the outlet of the automatic feeder valve, and an outlet end is connected to the water injection case;
A washing machine according to claim 1, wherein a discharge portion for said washing treatment agent by said pump is disposed in the middle of said automatic water supply path, and said discharge portion is disposed at a position lower than said inlet end portion. 2. The mixing space in which the laundry treatment agent pumped out by the pump and the water flowing from the automatic water supply valve are mixed is provided in the discharge part in the middle of the automatic water supply path. washing machine. A manual storage part capable of storing a laundry treatment agent used for one wash is provided on the upper part of the water injection case, and by opening a manual water supply valve, water is allowed to flow from above the manual storage part to wash the inside. Equipped with a manual supply mechanism that flows down into the water injection case together with the treatment agent and supplies it,
3. The washing machine according to claim 1, wherein the outlet end of the automatic water supply path is connected to a lower portion of the peripheral wall of the water injection case, and configured to flow water downwardly of the manual housing. A control device that controls the water supply mechanism,
3. When the laundry processing agent is supplied by the manual supply mechanism, the control device first opens the automatic water supply valve and then opens the manual water supply valve at the start of water supply. Washing machine as described. The washing machine according to any one of claims 1 to 4, wherein the automatic water supply path is configured such that the outlet end has a larger flow path diameter than the inlet end.

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