JP2022029497A - Detergent charging device and washing machine - Google Patents

Abstract

To provide a detergent charging device preventing locally accumulated detergent from remaining by flowing sufficient water to the whole detergent storing portions.SOLUTION: A detergent charging device includes: a detergent charging part 131 to which detergent is charged; a softener charging part 132 to which a softener is charged; and a detergent water passage TP1 for guiding water to the detergent charging part 131. The detergent water passage TP1 is provided with a route branch 136c for branching flowing water to a first side route TP11, a second side route TP12 and a central route TP13. Terminal portions of the first side path TP11 and the second side path TP12 are connected to a fourth side path TP14.SELECTED DRAWING: Figure 9

Description

The present invention relates to a detergent charging device for charging a detergent into a washing machine, and a washing machine including the detergent charging device.

A washing machine equipped with a detergent charging unit for charging detergent into a washing tub is known. In such a detergent charging section, the detergent is charged by the user at the time of use, and the detergent is diluted by water injection and flows into the water tank (see, for example, Patent Document 1).

Japanese Unexamined Patent Publication No. 2017-74287

The washing machine described in Patent Document 1 is provided with a detergent accommodating portion for accommodating detergent and a water supply channel for injecting water into the detergent accommodating portion. Water is poured from the rear part of the detergent container and the upper part of both sides.

By the way, in the above-mentioned washing machine, the amount of water in each water supply path is uneven, water is excessively injected from a small hole in the middle of the water supply path, and water does not reach the end, or water is injected through the small hole in the middle. There is a concern that water will not be evenly supplied from the entire circumference of the detergent storage section. As a result, there is a risk that the detergent will not flow completely and will remain.

The present invention has been made in view of the above problems, and it is possible to distribute water all around the detergent accommodating portion, and by flowing sufficient water throughout, the locally accumulated detergent remains. It is an object of the present invention to provide a detergent injection device and a washing machine that can be prevented.

The detergent charging device according to the present invention is a detergent charging device for charging detergent into a washing machine, and includes a first charging unit in which a first detergent is charged and a second charging unit in which a second detergent is charged. , The water supply port for taking in the water to be injected into the first inlet and the second inlet, the first water passage for guiding the water taken in from the water supply port to the first inlet, and the washing machine. The main body discharging unit for discharging the detergent to be charged is provided, the first charging unit has a first charging port opened in a rectangular shape in the top view, and the first charging port faces each other in the top view. It has a first side side and a second side side, and a third side side and a fourth side side facing each other. A route and a route branch to branch to the central route are provided, the first side route is provided along the first side, and the second side route is provided along the second side. The central path is provided along the third side side, and the end portions of the first side path and the second side path are provided along the fourth side. It is characterized by being connected to a side path.

In the detergent charging device according to the present invention, the first charging port includes the first side side, the second side side, and side ribs erected along the third side side, and the side side is provided. The rib may be configured to be provided with a slit for allowing water to flow into the first inlet.

In the detergent charging device according to the present invention, the side ribs may be provided with rectifying ribs protruding toward the inside of each path.

In the detergent charging device according to the present invention, a plurality of the slits may be provided, and the width of each of the slits may be made non-uniform.

In the detergent charging device according to the present invention, the distance from the path branch to the second side side is longer than the distance from the path branch to the first side side, and the end portion of the central path is the second side. It may be configured to join the side path.

In the detergent charging device according to the present invention, the central path is sandwiched between the first side path and the second side path in the path width direction along the cross section of the first water flow path. It may be located in the center of the first water passage, and the width in the path width direction may be narrower than that of the first side path and the second side path.

In the detergent charging device according to the present invention, the bottom surface of the first side path and the second side path may be configured to have an upwardly projecting portion.

The detergent charging device according to the present invention is provided with a second water passage for guiding water taken in from the water supply port to the second charging section, and the second charging section has a second charging port with an upper opening. However, the second input port may be configured to be provided with a passing rib erected along the outer circumference.

In the detergent charging device according to the present invention, the bottom surface of the second water passage may be configured to be inclined so as to be lowered toward the end.

The washing machine according to the present invention is characterized by comprising the detergent charging device according to the present invention.

According to the present invention, by branching the first water passage into three, water passing through the first side path and the second side path is secured, and all of the first inlets including the fourth side are secured. Water can be distributed around the circumference, and by flowing sufficient water throughout, it is possible to prevent the locally accumulated detergent from remaining.

It is a perspective view which shows the appearance of the detergent addition device which concerns on embodiment of this invention. It is a perspective view which shows the appearance example of the washing machine which uses the detergent addition device. It is a back view of the detergent charging device. It is a back view of the detergent charging device with the back cover removed from the case body. It is a top view which shows the part which removed the case for manual loading in a case body. It is a schematic diagram of the detergent addition device for demonstrating the detergent addition operation. It is a perspective view which shows the case for manual loading. It is a top view of the case for manual loading shown in FIG. 7. It is a top view which shows the manual container. FIG. 9 is an enlarged top view showing an enlarged view of the softener inlet side of FIG. 9. 9 is an enlarged top view showing the detergent inlet side of FIG. 9 in an enlarged manner. It is a cross-sectional view of a main part which shows the cross section at the arrow AA of FIG. 10A.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. First, the basic configuration of the detergent charging device 10 to which the present invention is applied and the operation at the time of adding detergent will be briefly described.

FIG. 1 is a perspective view showing the appearance of the detergent charging device 10 according to the embodiment of the present invention, and FIG. 2 is a perspective view showing an example of the appearance of the washing machine 1 according to the embodiment of the present invention. .. The detergent here is a detergent charged from the detergent charging device 10 into the washing tub of the washing machine 1, and refers to a clothing treatment agent such as a powder detergent, a liquid detergent, and a softener. Of the detergents, liquid detergents and clothing treatment agents may be referred to as liquid detergents. Further, FIG. 2 illustrates a drum type washing machine as the washing machine 1, but the present invention is not limited to this, and the washing machine to which the present invention is applied may be a vertical type washing machine. good.

As shown in FIG. 1, in the detergent charging device 10, the detergent tank 110, the softener tank 120, and the manual charging case 130 can be attached to the case body 100. The detergent tank 110 and the softener tank 120 are tanks for accommodating the liquid agent automatically charged into the washing tub of the washing machine 1, the detergent tank 110 contains the liquid detergent, and the softener tank 120 contains the softener. And bleach are stored. The manual charging case 130 is a case for the user to manually charge the detergent, and has a detergent charging unit 131 and a softener charging unit 132. The detailed structure of the manual loading case 130 will be described with reference to FIG. 7, which will be described later.

A valve mechanism 140 is attached to the rear of the detergent charging device 10. The valve mechanism 140 has a water supply port 141 for flowing tap water supplied to the detergent input device 10. Further, a plurality of solenoid valves are provided inside the valve mechanism 140, and by appropriately controlling the opening and closing of these plurality of solenoid valves, tap water can be supplied to the detergent charging device 10 by different routes. It has become.

The detergent charging device 10 is arranged inside the washing machine 1 near the upper left side when viewed from the front side (the side where the door 2 is arranged) with respect to the washing machine 1 shown in FIG. A lid 3 and a lid 4 are arranged on the upper surface of the washing machine 1. When the lid 3 is opened, the detergent charging unit 131 and the softener charging unit 132 of the detergent charging device 10 are exposed, and the user can manually charge the liquid agent. The manual charging case 130 has a structure that cannot be removed from the detergent charging device 10. Further, when the lid 4 is opened, the detergent tank 110 and the softener tank 120 are exposed, and the user can insert and remove the detergent tank 110 or the softener tank 120 to and from the washing machine 1. As a result, the user can remove the detergent tank 110 or the softener tank 120 to replenish the liquid agent.

Further, the detergent charging device 10 exposes the water supply port 141 near the rear portion of the upper surface of the washing machine 1 in a state of being mounted on the washing machine 1. As a result, the water supply port 141 is connected to the water faucet with a hose so that tap water can be supplied.

FIG. 3 is a back view of the detergent charging device 10 shown in FIG. 1, and FIG. 4 is a back view of the detergent charging device 10 in a state where the back cover 101 is removed from the case body 100.

As shown in FIG. 3, a liquid agent exchange chamber is provided on the back surface of the detergent charging device 10, and a back cover 101 is attached to the liquid agent exchange chamber.

As shown in FIG. 4, on the back surface of the case body 100, a first groove portion 102 that is a part of the first water supply path P1 described later and a second groove portion 103 that is a part of the second water supply path P2 described later are provided. Is formed. It should be noted that although grooves are formed on the back surface of the case body 100, these grooves can be used as a cylindrical first water supply path P1 and a second water supply path P2 by attaching the back cover 101 to the case body 100. Function.

In the first groove 102, an inflow port 102a into which tap water flows from the valve mechanism 140 is provided at the upstream end of the water supply path, and tap water (or tap water and liquid detergent) is provided at the downstream end. An outlet 102b is provided to allow the mixed liquid to flow out. Similarly, in the second groove 103, an inflow port 103a into which tap water flows from the valve mechanism 140 is provided at the upstream end of the water supply path, and tap water (or tap water and flexibility) is provided at the downstream end. An outlet 103b is provided to allow the outflow of the mixed solution with the agent). Further, a check valve 104 connected to the detergent tank 110 is provided in the middle of the first groove portion 102, and a check valve from the first water supply path P1 to the detergent tank 110 is provided, or the detergent tank 110 is not installed or not installed. Leakage from the first water supply path P1 to the upper surface of the case body 100 in the case of complete mounting is prevented. A check valve 105 connected to the softener tank 120 is provided in the middle of the second groove 103, and the backflow from the second water supply path P2 to the softener tank 120 or the softener tank 120 is not installed. Leakage from the second water supply path P2 to the upper surface of the case body 100 in the case of incomplete mounting is prevented. Both the mixed liquid of water and liquid detergent flowing out from the outlet 102b and the outlet 103b flow into the detergent charging section 131 of the manual charging case 130.

FIG. 5 is a top view showing a portion of the case body 100 from which the manual loading case 130 has been removed.

As shown in FIGS. 3 to 5, a main body discharge unit 106 is provided on the bottom surface of the case body 100 directly below the detergent charging unit 131 of the manual charging case 130. The water that has flowed into the detergent charging section 131 is supplied to the washing tub of the washing machine 1 through the main body discharging section 106. Further, as will be described in detail later, the water that has flowed into the softener charging section 132 of the manual loading case 130 is also supplied to the washing tub of the washing machine 1 through the main body discharging section 106.

Subsequently, the detergent charging operation in the detergent charging device 10 will be described with reference to FIG.

FIG. 6 is a schematic view of a detergent charging device 10 for explaining a detergent charging operation.

As shown in FIG. 6, in the valve mechanism 140, the water supply path from the water supply port 141 is separated into the third water supply path P3 and the fourth water supply path P4, and the third water supply path P3 is the first water supply path on the case body 100 side. It is connected to the path P1, and the fourth water supply path P4 is connected to the second water supply path P2. A solenoid valve 142 and a negative pressure pipe 144 are arranged in order from the upstream side in the third water supply path P3. A solenoid valve 143 and a negative pressure tube 145 are arranged in order from the upstream side in the fourth water supply path P4. The negative pressure pipe 144 and the negative pressure pipe 145 can generate a negative pressure in the fifth water supply path P5 by the Venturi effect. Further, the negative pressure pipe 144 and the negative pressure pipe 145 are connected by a fifth water supply path P5, and a flow meter 146 is arranged in the fifth water supply path P5. However, the valve mechanism 140 in FIG. 6 does not illustrate all water supply paths and solenoid valves.

The first water supply path P1 is provided with a check valve 107 on the downstream side of the check valve 104 (specifically, on the downstream side of the outlet 102b in the first groove 102). The second water supply path P2 is provided with a check valve 108 on the downstream side of the check valve 105 (specifically, on the downstream side of the outlet 103b in the second groove 103). A float valve is used for the check valves 107 and 108, and the check valves 107 and 108 are opened and closed by the water flow of the first water supply path P1 and the second water supply path P2, respectively. The first water supply path P1 and the second water supply path P2 merge further on the downstream side and flow into the detergent charging section 131 of the manual charging case 130 as described above.

First, a detergent charging operation (automatic charging operation of liquid detergent) when a specified amount of liquid detergent is automatically charged from the detergent tank 110 will be described. In the first stage of this detergent charging operation, water is supplied from the water supply port 141 while opening both the solenoid valves 142 and 143. The tap water flowing through the first water supply path P1 and the second water supply path P2 pushes up the check valves 107 and 108, which are float valves, to open the float valves, respectively. By the operation of the first stage, the tap water flows out to the detergent charging section 131 while satisfying all of the first to fourth water supply paths P1 to P4. At this time, the check valves 104 and 105 are both closed, and the liquid agent does not flow into the first water supply path P1 and the second water supply path P2 from the detergent tank 110 and the softener tank 120. In addition, almost no flow occurs in the fifth water supply path P5.

When all of the first to fourth water supply paths P1 to P4 are filled with tap water by the operation of the first stage, the solenoid valves 142 and 143 are temporarily closed, and the check valves 107 and 108, which are float valves, are lowered and closed. It becomes a state.

As a subsequent second step, only the solenoid valve 143 is opened to supply water from the water supply port 141. As a result, a flow is generated from the fourth water supply path P4 to the second water supply path P2, and a negative pressure is generated in the negative pressure pipe 145. Due to this negative pressure, tap water flows from the negative pressure pipe 144 to the negative pressure pipe 145 in the fifth water supply path P5. On the other hand, since both the solenoid valve 142 and the check valve 107 are in the closed state, the inside of the first water supply path P1 also becomes a negative pressure, and the check valve 104 opens due to this negative pressure, and the detergent tank 110 to the first water supply path P1 Liquid detergent is drawn into.

The check valve 104 is held in a closed state by the internal valve member being urged toward the detergent tank 110 by a spring (not shown), and the valve member is negative from the first water supply path P1. It is in the open state when pulled out by pressure. Further, the check valve 105 provided in the second water supply path P2 has the same configuration as the check valve 104.

In the operation of the second stage, the same amount of liquid detergent as the tap water flowing through the fifth water supply path P5 is drawn from the detergent tank 110 into the first water supply path P1. Therefore, in the second stage, the flow rate of tap water flowing through the fifth water supply path P5 is measured by the flow meter 146, and when the measured value of the flow meter 146 reaches the specified value, the solenoid valve 143 is closed to perform the second stage. End the operation. At the end of the second stage, the liquid detergent drawn from the detergent tank 110 remains only in the first water supply path P1 and does not flow into the fifth water supply path P5.

In the subsequent third step, water is supplied from the water supply port 141 while opening both the solenoid valves 142 and 143 again. As a result, a mixed solution of tap water and liquid detergent is sent from the first water supply path P1 to the detergent charging section 131, and tap water is sent to the detergent charging section 131 from the second water supply path P2. When a sufficient amount of water is supplied to replace all of the first to fourth water supply paths P1 to P4 with tap water, the solenoid valves 142 and 143 are closed, and the automatic charging operation of the liquid detergent is completed.

In the above-mentioned automatic charging operation of the liquid detergent, in the second stage, a specified amount of the liquid detergent is drawn from the detergent tank 110 into the first water supply path P1, but the drawn liquid detergent flows into the fifth water supply path P5. The maximum amount that can be pulled in is set so that there is no such thing. Therefore, when it is desired to add the detergent exceeding the maximum specified amount to the washing tub, the above-mentioned automatic charging operation may be performed a plurality of times.

The detergent charging operation (automatic charging operation of the softener) when the specified amount of the softener is automatically charged from the softener tank 120 can be performed in the same manner as the automatic charging operation of the liquid detergent. However, in the automatic charging operation of the softener, only the solenoid valve 142 is opened in the second stage. As a result, in the automatic charging operation of the softener, a negative pressure is generated in the second water supply path P2, the check valve 105 opens, and the softener is drawn from the softener tank 120 into the second water supply path P2.

At the time of manual charging of the detergent, a predetermined amount of detergent (liquid detergent or powder detergent corresponding to the first detergent) is charged by the user into the detergent charging section 131 of the manual loading case 130. Water supply at this time is performed with both the solenoid valves 142 and 143 open. When water is supplied with both the solenoid valves 142 and 143 open, the check valves 104 and 105 remain closed, so that only tap water is supplied to the detergent input section 131. That is, tap water supplied to the detergent charging unit 131 can be used to dissolve the detergent in the detergent charging unit 131 and charge it into the washing tub.

Finally, at the time of manual charging of the softener, a predetermined amount of the softener (corresponding to the second detergent) is charged by the user into the softener charging section 132 of the manual charging case 130. However, the first to fourth water supply routes P1 to P4 are not used for the water supply at this time, and water is supplied to the softener charging unit 132 by the water supply route of another system. That is, in the valve mechanism 140, water is supplied from the water supply port 141 by using another solenoid valve and a water supply path (not shown in FIG. 6). In the present embodiment, as shown in FIG. 4, water is supplied to the softener charging section 132 by the third groove portion 151 formed on the back surface of the case body 100. The third groove portion 151 is provided with an inflow port 151a into which tap water flows in and an outflow port 151b through which tap water flows out.

A drainage portion having a siphon structure is formed on the bottom surface of the softener charging portion 132. Therefore, when the water level in the softener charging section 132 becomes higher than a predetermined height due to the water supply to the softener charging section 132, the mixed liquid of tap water and the softener is drained from this draining section, and the main body discharging section 106 Is put into the washing tub. The structure of the drainage section provided in the softener charging section 132 will be described with reference to FIG. 11 described later.

FIG. 7 is a perspective view showing the manual loading case 130, and FIG. 8 is a top view of the manual loading case 130 shown in FIG. 7.

The manual loading case 130 is composed of a manual container 134 and a manual lid 133. The manual lid 133 covers the upper surface of the manual container 134 and is provided with openings corresponding to the detergent charging section 131 (an example of the first charging section) and the softener charging section 132 (an example of the second charging section). That is, even when the manual container 134 is covered with the manual lid 133, the detergent or the softener can be charged into the detergent charging unit 131 and the softener charging unit 132.

The manual container 134 is provided with a detergent charging section 131 and a softener charging section 132 formed by recessing the bottom surface downward. The detergent charging unit 131 is provided with a detergent discharge port 131b that opens downward, and the softener charging unit 132 is provided with a softener discharging port 132b that opens downward (see FIG. 9 to be described later). .. Further, the softener charging section 132 is provided with a drainage section lid 135 that covers the softener discharging port 132b.

9 is a top view showing the manual container 134, FIG. 10A is an enlarged top view showing the softener charging port 132a side of FIG. 9 in an enlarged manner, and FIG. 10B is a detergent charging port of FIG. It is an enlarged top view which shows the 131a side enlarged. In addition, in FIG. 9, only a part of the reference numerals is omitted in consideration of the legibility of the drawing, and the reference numerals in FIGS. 10A and 10B correspond to the respective parts of FIG. ing.

9 to 10B show a state in which the manual lid 133 and the drainage portion lid 135 are removed from the manual loading case 130 shown in FIG. On the upper surface of the manual container 134, a detergent inlet 131a (an example of a first inlet) opened according to the detergent inlet 131 and a softener inlet 132a (first) opened according to the softener inlet 132. 2 An example of a slot) is provided. Further, in the manual container 134, the detergent water passage port 136a for drawing the tap water that has passed through the above-mentioned check valve 107 or the check valve 108 into the detergent charging section 131, and the tap water that has passed through the third groove section 151 are flexible. A softener water passage port 137a for drawing into the agent charging unit 132 is provided. In the present embodiment, a pipe connected to the detergent water passage port 136a and the softener water passage port 137a is provided, and the water is pulled up from the pipe and sent onto the manual container 134. In addition, the present invention is not limited to this, and water may be supplied from above the portion corresponding to the detergent water passage port 136a and the softener water passage port 137a.

The manual container 134 is provided with a detergent path wall 136b erected so as to surround the detergent water passage port 136a and the detergent inlet 131a. In the region surrounded by the detergent path wall 136b, a detergent water flow path TP1 (an example of a first water flow path) for guiding water from the detergent water flow port 136a to the detergent inlet 131a is formed. Further, the manual container 134 is provided with a softener path wall 137b which is erected so as to surround the periphery of the softener water passage port 137a and the softener inlet 132a in the same manner as the detergent path wall 136b. In the region surrounded by the softener path wall 137b, a softener water flow path TP2 (an example of a second water flow path) for guiding water from the softener water flow port 137a to the softener inlet 132a is formed. In the present embodiment, the detergent route wall 136b and the softener route wall 137b are partially connected to each other and are commonly used, but the detergent water passage route TP1 and the softener water passage route TP2 are used. Should be separated.

The detergent water passage path TP1 is provided with a path branch 136c for branching the flowing water. Specifically, the detergent water passage path TP1 is provided with a first branch rib 136d and a second branch rib 136e. The first branch rib 136d and the second branch rib 136e extend to the downstream side in the direction in which water flows, starting from the path branch 136c. The detergent water flow path TP1 is separated by the first branch rib 136d and the second branch rib 136e, so that the downstream side of the path branch 136c is the first side path TP11, the second side path TP12, and the central path TP13. It branches into three. Further, the route branch 136c is provided between the detergent water passage port 136a and the detergent inlet 131a, and before reaching the detergent inlet 131a, the water is supplied to the first side route TP11 and the second side route TP12. , And the central route TP13.

The central path TP13 is sandwiched between the first side path TP11 and the second side path TP12 in the path width direction along the cross section of the detergent water flow path TP1 (left-right direction in the vicinity of the path branch 136c in FIG. 10A). It is located in the center of the detergent water flow path TP1, and its width in the path width direction is narrower than that of the first side path TP11 and the second side path TP12. Specifically, the width of the first side path TP11 (first path width TW1) and the width of the second side path TP12 (second path width TW2) are substantially the same, and the width of the central path TP13 (third). The route width TW3) is narrower than the others.

In the detergent water flow path TP1, the flow rate is high near the center and low near the wall surface (edge). Therefore, when it is divided into three equal parts with an even width, the flow rate at the center becomes large and it cannot be divided into equal parts. Therefore, by narrowing the width of the central path TP13 and adjusting the flow rate, the flow rates in the three paths can be made uniform.

The detergent inlet 131a has a substantially rectangular shape when viewed from above, and has rounded corners. In the following, for the sake of explanation, the long sides facing each other are referred to as the first side side 131c and the second side side 131d, and the short sides facing each other are referred to as the third side side 131e and the fourth side side 131f. Called. The first side side 131c (upper side in FIG. 10B) is located closer to the path branch 136c (upper right in FIG. 10B) than the second side side 131d (lower side in FIG. 10B). Further, the third side side 131e (right side in FIG. 10B) is located closer to the route branch 136c than the fourth side side 131f (left side in FIG. 10B). The detergent discharge port 131b described above is located closer to the fourth side side 131f than the center in the detergent charging section 131.

The detergent path wall 136b is formed so as to surround a position slightly distant from the detergent inlet 131a in the top view, and the space between the detergent path wall 136b and the detergent inlet 131a is along the outer periphery of the detergent inlet 131a. It is the bottom surface of the detergent water passage route TP1 that allows water to flow. Specifically, the first side side path TP11 is provided along the first side side 131c, and the end of the first branch rib 136d is the angle between the first side side 131c and the third side side 131e. It is connected to. The second branch rib 136e extends along the third side side 131e and has an end located near the angle between the second side side 131d and the third side side 131e. That is, around the third side side 131e, the second branch rib 136e extends so as to divide the region from the detergent inlet 131a (third side side 131e) to the detergent path wall 136b, and extends from the third side side 131e. The region up to the second branch rib 136e is the central path TP13, and the region from the second branch rib 136e to the detergent path wall 136b is the second side path TP12. The terminal portion of the central path TP13 joins the second side path TP12, and the central path TP13 is placed in the vicinity of the corner between the second side side 131d and the third side path 131e. A path coupling 136k is provided to merge with the. Further, the terminal portions of the first side side route TP11 and the second side side route TP12 are connected to the fourth side side route TP14 provided along the fourth side side 131f.

As described above, by branching the detergent water flow path TP1 into three, water passing through the first side path TP11 and the second side path TP12 is secured, and the detergent inlet including the fourth side side 131f is secured. Water can be distributed all around the 131a, and by flowing sufficient water throughout, it is possible to prevent the locally accumulated detergent from remaining. Further, by supplying the surplus water in the central route TP13 to the second side route TP12, which tends to have insufficient water flow / flow velocity due to the long distance from the route branch 136c, the second side route TP12 can be reliably used. You will be able to supply water to.

On the outer periphery of the detergent inlet 131a, side ribs 136f are erected along the first side side 131c, the second side side 131d, and the third side side 131e. The side rib 136f is provided with a slit 136h formed by partially interrupting the side rib 136h, and water flows down into the detergent inlet 131a through the slit 136h. By providing the side rib 136f in this way, it is possible to flow water to the first charging portion through the slit 136h while adjusting the flow rate in each path.

A plurality of slits 136h are formed at appropriate intervals, and the widths of the slits 136h are made uneven. That is, in the slit 136h having a wide opening, the amount of water flowing down is large, and in the slit 136h having a narrow opening, the amount of water flowing down is small. The width of the opening of the slit 136h may be appropriately adjusted according to the position where the slit 136h is provided and the space between the slit 136h and the like. You may narrow the neighbor. By individually adjusting the width of the slit 136h in this way, it is possible to eliminate the difference in the flow rate at the provided portion. As a result, it is possible to increase the amount of water at the place where water is reliably supplied, reduce the amount of outflow, and send water further downstream.

The side ribs 136f are provided with rectifying ribs 136g protruding toward the inside of each path. The amount of water flowing down from the slit 136h can be adjusted by appropriately damming the water flow with the rectifying rib 136g.

A protruding portion 136j projecting upward is provided on the bottom surface of the first side route TP11 and the second side route TP12 along the first side side 131c and the second side side 131d. In the present embodiment, the protrusion 136j is set to be slightly higher than the bottom surfaces of the first side path TP11 and the second side path TP12, and goes from the detergent path wall 136b to the detergent inlet 131a toward the downstream. It extends in a direction that is inclined to approach. When the flow velocity was high, water sometimes passed along the direction of extension of the path, and water did not flow down from the desired location. In the present embodiment, the protrusion 136j interferes with the water flowing on the bottom surface, so that the direction in which the water flows can be changed so that the water flows down from the vicinity of the protrusion 136j to the detergent inlet 131a.

The softener inlet 132a has a substantially rectangular shape when viewed from above, and has rounded corners. For the sake of explanation below, of the softener inlets 132a, the long sides facing each other are referred to as the softener first side side 132c (upper side in FIG. 10A) and the softener second side side 132d (lower side in FIG. 10A). The short sides facing each other are referred to as a softener third side side 132e (right side in FIG. 10A) and a softener fourth side side 132f (left side in FIG. 10A). The softener water passage port 137a (upper right in FIG. 10A) is located near the corner between the softener first side side 132c and the softener third side side 132e. The softener discharge port 132b described above is located closer to the softener fourth side side 132f than the center in the softener charging section 132. A conduction wall 132g erected upward is provided around the softener discharge port 132b.

The softener pathway wall 137b is formed so as to surround a position slightly distant from the softener inlet 132a in the top view, and the softener pathway wall 137b and the softener inlet 132a are formed between the softener pathway wall 137b and the softener inlet 132a. It is the bottom surface of the softener water passage path TP2 in which water flows along the outer periphery of 132a.

On the outer periphery of the softener inlet 132a, a transfer rib 137c is erected along the softener first side side 132c, the softener second side side 132d, and the softener third side side 132e. The boarding rib 137c is set to be slightly higher than the bottom surface of the softener water passage path TP2. By adjusting the amount of water flowing down to the softener inlet 132a by the riding over rib 137c, water can be distributed all around the softener inlet 132a. Further, by adjusting the height of the transit rib 137c, when the amount of water is large, water can be overflowed and water can be supplied from above the transit rib 137c. The boarding rib 137c does not completely surround the outer periphery of the softener inlet 132a, and may be interrupted at a place where a large amount of water is desired, such as a corner portion or a downstream portion of each route.

FIG. 11 is a cross-sectional view of a main part showing a cross section taken along the arrow AA of FIG. 10A. In addition, in FIG. 11, in order to show the structure of the drainage portion, not only the manual container 134 but also the drainage portion lid 135 covering the softener discharge port 132b is also shown.

The bottom surface of the softener water passage path TP2 is inclined so as to be lowered toward the end. For example, in the portion along the softener first side side 132c shown in FIG. 11, an inclined portion 137d is provided in which the softener third side side 132e side is higher and the softener fourth side side 132f side is lower. Has been done. In this way, by providing the softener water passage path TP2 with an inclination, water can easily flow toward the end, and residual water in the path can be prevented. In FIG. 11, the inclined portion 137d provided around the softener first side side 132c is shown, but the inclined portion 137d is not limited to this, and the inclined portion 137d is the softener second side side 132d and the softener third side side 132e. , And the softener may be provided around the fourth side side 132f.

The drainage lid 135 has a substantially cylindrical suction upper 135a having an open lower surface, and the suction upper 135a covers the upper part and the periphery of the conduction wall 132g. That is, the conduction wall 132g is housed inside the suction upper 135a, and a siphon structure is formed by providing a gap between the outer wall of the conduction wall 132g and the inner wall of the suction upper 135a (hereinafter referred to as a suction path). is doing. At the lower end of the suction upper portion 135a, a suction port 135b formed by cutting out a part thereof is provided.

In the drainage section of the softener charging section 132, water and the softener enter the suction path through the suction port 135b. In the suction path, the water and the softener are pulled up to the upper end of the conduction wall 132g by the siphon action, and are discharged to the outside from the discharge portion 132h provided on the bottom surface through the softener discharge port 132b.

The embodiments disclosed this time are exemplary in all respects and are not grounds for limited interpretation. Therefore, the technical scope of the present invention is not construed solely by the embodiments described above, but is defined based on the description of the scope of claims. It also includes all changes within the meaning and scope of the claims.

1 Washing machine 10 Detergent charging device 100 Case body 106 Main body discharging part 110 Detergent tank 120 Softener tank 130 Manual charging case 131 Detergent charging part (an example of the first loading part)
131a Detergent inlet (an example of the first inlet)
131b Detergent discharge port 131c 1st side side 131d 2nd side side 131e 3rd side side 131f 4th side side 136f Side side rib 136g Rectifying rib 136h Slit 137c Passing over rib 137d Inclined part 132 Fabric softener charging part One case)
140 Valve mechanism 141 Water supply port TP1 Detergent water flow path (an example of the first water flow path)
TP11 1st side route TP12 2nd side route TP13 Central route TP14 4th side route

Claims (10)

It is a detergent injection device that injects detergent into the washing machine.
The first charging section where the first detergent is charged, and
The second input section where the second detergent is charged, and
A water supply port that takes in water to be injected into the first input section and the second input section, and
A first water flow route that guides water taken in from the water supply port to the first input section, and
It is equipped with a main body discharge unit that discharges the detergent to be put into the washing machine.
The first loading portion has a first loading port that opens in a rectangular shape when viewed from above.
The first input port has a first side side and a second side side facing each other, and a third side side and a fourth side side facing each other in a top view.
The first water passage is provided with a route branch for branching flowing water into a first side route, a second side route, and a central route.
The first side side path is provided along the first side side, and is provided.
The second side route is provided along the second side, and is provided along the second side.
The central path is provided along the third side and is provided.
A detergent charging device characterized in that the terminal portions of the first side path and the second side path are connected to a fourth side path provided along the fourth side. The detergent charging device according to claim 1.
The first input port includes the first side side, the second side side, and the side ribs erected along the third side side.
The side rib is a detergent charging device characterized in that a slit for flowing water into the first charging port is provided. The detergent charging device according to claim 2.
The detergent charging device is characterized in that the side ribs are provided with rectifying ribs protruding toward the inside of each path. The detergent charging device according to claim 2 or 3.
A detergent charging device characterized in that a plurality of the slits are provided and the width of each opening is made non-uniform. The detergent charging device according to any one of claims 1 to 4.
The distance from the route branch to the second side is longer than the distance from the route branch to the first side.
A detergent charging device characterized in that the end portion of the central path joins the second side path. The detergent charging device according to any one of claims 1 to 5.
The central path is located in the center of the first water flow path, sandwiched between the first side path and the second side path in the path width direction along the cross section of the first water flow path. The detergent charging device is characterized in that the width in the path width direction is narrower than that of the first side path and the second side path. The detergent charging device according to any one of claims 1 to 6.
A detergent charging device characterized in that a protrusion protruding upward is provided on the bottom surface of the first side path and the second side path. The detergent charging device according to any one of claims 1 to 7.
It is provided with a second water passage that guides the water taken in from the water supply port to the second input section.
The second loading portion has a second loading port that is open at the top.
The second input port is a detergent input device characterized by being provided with a boarding-over rib erected along the outer periphery thereof. The detergent charging device according to claim 8.
A detergent charging device characterized in that the bottom surface of the second water passage is inclined so as to be lowered toward the end. A washing machine provided with the detergent charging device according to any one of claims 1 to 9.

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