JP7399815B2 - Detergent dosing device and washing machine - Google Patents

Description

The present invention relates to a detergent dispenser for dispensing detergent into a washing machine, and a washing machine equipped with the same.

2. Description of the Related Art A washing machine is known that includes a detergent charging section for charging detergent into a washing tub. When using such a detergent input unit, a user inputs detergent, and the detergent is diluted by pouring water and flows into the water tank (for example, see Patent Document 1).

JP2017-74287A

The washing machine described in Patent Document 1 includes a detergent storage section that stores detergent and a water supply channel that injects water into the detergent storage section. Water is injected from the rear part and the upper part of both sides of the detergent storage part.

By the way, in the above-mentioned washing machine, the amount of water for each water supply route may be uneven, water may be injected excessively from a small hole in the middle of the water supply route and the water may not reach the end, or water may be injected past a small hole in the middle of the water supply route. There is a concern that water may not be uniformly supplied from all around the detergent storage section. This may cause a problem in which the detergent does not flow completely and remains behind.

The present invention has been made in view of the above-mentioned problems, and it is possible to distribute water all around the detergent accommodating section, and by flowing sufficient water throughout the entire area, it is possible to prevent detergent that has locally accumulated from remaining. An object of the present invention is to provide a detergent dispensing device and a washing machine that prevent the above-mentioned problems.

The detergent dosing device according to the present invention is a detergent dosing device for putting detergent into a washing machine, and includes a first dosing section into which a first detergent is put in, and a second dosing section into which a second detergent is put in. , a water supply port that takes in water to be injected into the first input section and the second input section; a first water flow path that guides water taken in from the water supply port to the first input section; a main body discharge part for discharging the detergent to be put in, the first input part has a first input opening having a rectangular shape when viewed from above, and the first input openings are opposite to each other when viewed from above. and a third side and a fourth side that face each other, and the first water flow path directs flowing water through the first side path and the second side side. a path, and a path branch that branches into a central path, the first side path being provided along the first side, and the second side path being provided along the second side. the central path is provided along the third side, and the end portions of the first side path and the second side path are connected to a fourth side provided along the fourth side. It is characterized by being connected to a side route.

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

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

In the detergent dispensing device according to the present invention, a plurality of slits may be provided, and the opening widths of the slits may be made non-uniform.

In the detergent dispensing device according to the present invention, a distance from the route branch to the second side is longer than a distance from the route branch to the first side, and an end portion of the central route is located at the second side. It may also be configured to merge with the side path.

In the detergent dispensing 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 at the center of the first water flow path, and the width in the path width direction may be narrower than the first side path and the second side path.

In the detergent dispensing device according to the present invention, the first side path and the second side path may have a configuration in which a protrusion projecting upward is provided on the bottom surface of the first side path and the second side path.

The detergent dosing device according to the present invention includes a second water flow path that guides water taken in from the water supply port to the second inlet part, and the second inlet part has a second inlet opening at the top. However, the second input port may be provided with a riding rib that stands up along the outer periphery.

In the detergent dispensing device according to the present invention, the bottom surface of the second water flow path may be configured to be sloped so as to become lower toward the end.

A washing machine according to the present invention is characterized by being equipped with a detergent charging device according to the present invention.

According to the present invention, by branching the first water flow path into three, water passing through the first side path and the second side path is ensured, and all of the water flowing through the first inlet including the fourth side path is secured. Water can be distributed around the area, and by flowing enough water throughout the area, detergent that has accumulated locally can be prevented from remaining.

BRIEF DESCRIPTION OF THE DRAWINGS It is a perspective view which shows the external appearance of the detergent injection device based on embodiment of this invention. FIG. 1 is a perspective view showing an example of the appearance of a washing machine using a detergent dispenser. It is a back view of a detergent injection device. FIG. 3 is a back view of the detergent dispenser with the back cover removed from the case body. FIG. 3 is a top view showing a portion of the case body from which the manual loading case is removed. FIG. 3 is a schematic diagram of a detergent dispenser for explaining a detergent dispensing operation. It is a perspective view showing a case for manual input. FIG. 8 is a top view of the manual input case shown in FIG. 7; It is a top view showing a manual container. 10 is an enlarged top view showing the softener inlet side of FIG. 9 in an enlarged manner. FIG. 10 is an enlarged top view showing the detergent inlet side of FIG. 9 in an enlarged manner. FIG. 10A is a cross-sectional view of a main part taken along arrow AA in FIG. 10A. FIG.

Embodiments of the present invention will be described in detail below with reference to the drawings. First, the basic configuration of the detergent dispensing device 10 to which the present invention is applied and the operation when dispensing detergent will be briefly described.

FIG. 1 is a perspective view showing an external appearance of a detergent dispenser 10 according to an embodiment of the present invention, and FIG. 2 is a perspective view showing an example of the external appearance of a washing machine 1 according to an embodiment of the present invention. . Note that the detergent here refers to the detergent that is dispensed from the detergent dispensing device 10 into the washing tub of the washing machine 1, and refers to powder detergent, liquid detergent, and clothing treatment agents such as fabric softeners. Furthermore, among detergents, liquid detergents and clothing treatment agents are sometimes referred to as liquid agents. Further, although a drum-type washing machine is illustrated as the washing machine 1 in FIG. 2, 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, the detergent dispenser 10 is configured such that a detergent tank 110, a softener tank 120, and a manual dispense case 130 can be attached to a case body 100. The detergent tank 110 and the softener tank 120 are tanks for storing liquid agents that are automatically added to the washing tub of the washing machine 1. The detergent tank 110 stores liquid detergent, and the softener tank 120 stores the softener. and bleach, etc. The manual injection case 130 is a case for a user to manually add detergent, and includes a detergent injection section 131 and a softener injection section 132. Note that the detailed structure of the manual loading case 130 will be explained with reference to FIG. 7, which will be described later.

A valve mechanism 140 is attached to the rear of the detergent injection device 10. The valve mechanism 140 has a water supply port 141 through which tap water supplied to the detergent injection device 10 flows. Moreover, a plurality of solenoid valves are provided inside the valve mechanism 140, and by appropriately controlling the opening and closing of the plurality of solenoid valves, tap water can be supplied to the detergent dispensing device 10 through different routes. It has become.

Detergent charging device 10 is arranged inside washing machine 1 near the upper left side when viewed from the front side (the side where door 2 is arranged) with respect to washing machine 1 shown in FIG. A lid 3 and a lid 4 are arranged on the top surface of the washing machine 1. When the lid 3 is opened, the detergent dispenser 131 and the softener dispenser 132 of the detergent dispenser 10 are exposed, allowing the user to manually dispense the liquid. Note that the manual loading case 130 is configured such that it cannot be removed from the detergent loading 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 or remove the detergent tank 110 or the softener tank 120 from the washing machine 1. This allows the user to remove the detergent tank 110 or the softener tank 120 and replenish the liquid.

Further, when the detergent dispenser 10 is attached to the washing machine 1, the water supply port 141 is exposed near the rear of the upper surface of the washing machine 1. Thereby, the water supply port 141 is connected to a water faucet with a hose, and can receive a supply of tap water.

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

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

As shown in FIG. 4, on the back side of the case body 100, there are a first groove 102 that becomes a part of a first water supply path P1, which will be described later, and a second groove 103, which becomes a part of a second water supply path P2, which will be described later. is formed. Note that grooves are formed on the back surface of the case body 100, and by attaching the back cover 101 to the case body 100, these grooves can be used as a cylindrical first water supply path P1 and a second water supply path P2. Function.

In the first groove part 102, an inlet 102a through which tap water flows from the valve mechanism 140 is provided at the upstream end of the water supply path, and an inlet 102a through which tap water flows in from the valve mechanism 140 is provided at the downstream end. An outlet 102b is provided to allow the mixed liquid to flow out. Similarly, in the second groove part 103, an inlet 103a through 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 soft water) is provided at the downstream end. An outflow port 103b is provided through which the mixed liquid with the agent flows out. In addition, a check valve 104 connected to the detergent tank 110 is provided in the middle of the first groove 102 to prevent backflow from the first water supply path P1 to the detergent tank 110, or if the detergent tank 110 is not installed or is not installed. Leakage from the first water supply path P1 to the upper surface of the case body 100 in the case of complete installation is prevented. A check valve 105 connected to the softener tank 120 is provided in the middle of the second groove 103, and prevents backflow from the second water supply path P2 to the softener tank 120, or when 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 attachment is prevented. The water and liquid detergent mixture flowing out from the outlet 102b and the outlet 103b flow into the detergent input section 131 of the manual input case 130.

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

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

Next, the detergent dispensing operation in the detergent dispensing device 10 will be explained with reference to FIG. 6.

FIG. 6 is a schematic diagram of the detergent dispensing device 10 for explaining the detergent dispensing operation.

As shown in FIG. 6, in the valve mechanism 140, the water supply route from the water supply port 141 is separated into a third water supply route P3 and a fourth water supply route P4, and the third water supply route P3 is the first water supply route from the case body 100 side. The fourth water supply route P4 is connected to the second water supply route P2. In the third water supply path P3, a solenoid valve 142 and a negative pressure pipe 144 are arranged in order from the upstream side. In the fourth water supply path P4, a solenoid valve 143 and a negative pressure pipe 145 are arranged in order from the upstream side. The negative pressure pipe 144 and the negative pressure pipe 145 can generate 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 the water supply paths and solenoid valves.

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

First, a detergent dispensing operation (automatic liquid detergent dispensing operation) when automatically dispensing a specified amount of liquid detergent from the detergent tank 110 will be described. In the first stage of this detergent injection operation, water is supplied from the water supply port 141 while both the solenoid valves 142 and 143 are opened. 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, respectively, to open them. By this first stage operation, the tap water fills all of the first to fourth water supply paths P1 to P4 and flows out to the detergent input section 131. At this time, both check valves 104 and 105 are in a closed state, and no liquid flows into the first water supply path P1 and the second water supply path P2 from the detergent tank 110 and the softener tank 120. Furthermore, 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 first stage operation, the solenoid valves 142 and 143 are once closed, and the check valves 107 and 108, which are float valves, are lowered and closed. state.

As a subsequent second step, only the solenoid valve 143 is opened to supply water from the water supply port 141. This causes a flow from the fourth water supply path P4 to the second water supply path P2, and negative pressure is generated in the negative pressure pipe 145. This negative pressure causes tap water to flow from the negative pressure pipe 144 toward 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 a closed state, negative pressure also exists in the first water supply path P1, and this negative pressure opens the check valve 104, causing the flow from the detergent tank 110 to the first water supply path P1. liquid detergent is drawn into the

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

In the second stage of operation, 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 route P5 is measured by the flow meter 146, and when the measured value of the flow meter 146 reaches a specified value, the solenoid valve 143 is closed and the flow rate of the tap water flowing through the fifth water supply path P5 is measured by the flow meter 146. Finish the operation. Note that 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 stage, 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 to the detergent input section 131 from the first water supply path P1, and tap water is sent to the detergent input 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 liquid detergent injection operation ends.

In the above-described automatic injection operation of liquid detergent, in the second stage, a prescribed amount of 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 prescribed amount that can be drawn is determined so that there is no problem. Therefore, if it is desired to add detergent exceeding the maximum specified amount to the washing tub, the above-mentioned automatic adding operation may be performed multiple times.

The detergent injection operation (automatic softener injection operation) when automatically adding a specified amount of softener from the softener tank 120 can be performed in the same manner as the automatic injection operation of liquid detergent. However, in the automatic softener injection operation, only the solenoid valve 142 is opened in the second stage. As a result, in the automatic softener injection operation, 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.

When manually adding detergent, the user puts a predetermined amount of detergent (liquid detergent or powder detergent corresponding to the first detergent) into the detergent injection part 131 of the manual injection case 130. Water is supplied at this time with both solenoid valves 142 and 143 open. When water is supplied with both electromagnetic valves 142 and 143 open, check valves 104 and 105 remain closed, so only tap water is supplied to detergent input section 131. That is, the tap water supplied to the detergent input unit 131 can dissolve the detergent in the detergent input unit 131 and pour it into the washing tub.

Finally, when manually adding the softener, the user puts a predetermined amount of the softener (corresponding to the second detergent) into the softener dispenser 132 of the manual dispense case 130. However, the first to fourth water supply paths P1 to P4 are not used for water supply at this time, and water is supplied to the softener input portion 132 through a separate water supply path. That is, in the valve mechanism 140, water is supplied from the water supply port 141 using other electromagnetic valves and water supply paths, which are not shown in FIG. In this embodiment, as shown in FIG. 4, water is supplied to the softener input portion 132 through a third groove portion 151 formed on the back surface of the case body 100. The third groove portion 151 is provided with an inlet 151a through which tap water flows in, and an outlet 151b through which tap water flows out.

A drainage part having a siphon structure is formed on the bottom surface of the softener input part 132. Therefore, when the water level in the softener input section 132 reaches a predetermined level or higher due to water supply to the softener input section 132, the mixed liquid of tap water and softener is drained from this drainage section, and the main body discharge section 106 from there to the washing tub. Note that the structure of the drainage section provided in the softener input section 132 will be explained with reference to FIG. 11, which will be described later.

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

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 has openings corresponding to the detergent dispenser 131 (an example of a first dispenser) and the softener dispenser 132 (an example of a second dispenser). That is, even when the manual container 134 is covered with the manual lid 133, detergent and fabric softener can be poured into the detergent dispenser 131 and the softener dispenser 132.

The manual container 134 is provided with a detergent dispenser 131 and a softener dispenser 132, which are formed by recessing the bottom surface downward. The detergent input part 131 is provided with a detergent outlet 131b that opens downward, and the softener input part 132 is provided with a softener outlet 132b that opens downward (see FIG. 9, which will be described later). . Further, the softener input section 132 is provided with a drain section lid 135 that covers the softener outlet 132b.

9 is a top view showing the manual container 134, FIG. 10A is an enlarged top view showing the softener inlet 132a side in FIG. 9, and FIG. 10B is an enlarged top view showing the detergent inlet 132a in FIG. It is an enlarged top view showing the 131a side enlarged. Note that in FIG. 9, some symbols are omitted for ease of viewing the drawing, and the portions with symbols in FIGS. 10A and 10B correspond to the respective parts in FIG. 9. ing.

9 to 10B show a state in which the manual lid 133 and the drain portion lid 135 are removed from the manual input case 130 shown in FIG. 8. On the top surface of the manual container 134, there are a detergent inlet 131a (an example of a first inlet) opened in accordance with the detergent inlet 131, and a softener inlet 132a (an example of a first inlet) opened in accordance with the softener inlet 132. An example of two input ports) is provided. The manual container 134 also has a detergent water inlet 136a for drawing the tap water that has passed through the above-mentioned check valve 107 or check valve 108 into the detergent input section 131, and a detergent water inlet 136a for drawing the tap water that has passed through the third groove section 151 into the detergent input section 131. A softener water passage port 137a for drawing the softener into the agent input portion 132 is provided. In this embodiment, piping connected to the detergent water inlet 136a and the softener water inlet 137a is provided, and water is drawn up from this pipe and is configured to be sent onto the manual container 134. Note that the present invention is not limited to this, and a configuration may be adopted in which water is supplied from above the locations corresponding to the detergent water inlet 136a and the softener water inlet 137a.

The manual container 134 is provided with a detergent path wall 136b standing upright to surround the detergent water inlet 136a and the detergent inlet 131a. A detergent water flow path TP1 (an example of a first water flow path) that guides water from the detergent water flow port 136a to the detergent input port 131a is formed in the area surrounded by the detergent path wall 136b. Further, the manual container 134 is provided with a softener route wall 137b that stands upright to surround the softener water inlet 137a and the softener inlet 132a, similar to the detergent route wall 136b. A softener water flow path TP2 (an example of a second water flow path) that guides water from the softener water flow port 137a to the softener input port 132a is formed in the area surrounded by the softener flow path wall 137b. In this embodiment, the detergent passage wall 136b and the softener passage wall 137b are partially connected and have some parts that are used in common, but the detergent passage wall 136b and the softener passage wall 137b are It is sufficient if they are separated.

The detergent water flow path TP1 is provided with a path branch 136c that branches flowing water. Specifically, the detergent water flow path TP1 is provided with a first branching rib 136d and a second branching rib 136e. The first branching rib 136d and the second branching rib 136e extend downstream in the water flow direction from the route branching 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 connected to the first side path TP11, the second side path TP12, and the center path TP13. It is branched into three parts. Further, the route branch 136c is provided between the detergent water inlet 136a and the detergent inlet 131a, and the water is routed through the first side route TP11 and the second side route TP12 before reaching the detergent inlet 131a. , and the central path 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 (in the left-right direction near the path branch 136c in FIG. 10A). It is located at the center of the detergent water flow path TP1, and its width in the path width direction is narrower than 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 approximately the same, and the width of the center path TP13 (the third path width TW2) is approximately the same. The path width TW3) is narrower than the others.

In the detergent water flow path TP1, the flow rate is high near the center, and the flow rate is low near the wall surface (end). Therefore, if the water is divided into three equal widths, the flow rate in the center will be large, making it impossible to divide the water into equal amounts. Therefore, by narrowing the width of the central path TP13 and adjusting the flow rate, the flow rate in the three paths can be made equal.

The detergent inlet 131a has a substantially rectangular shape when viewed from above, and has rounded corners. For the sake of explanation, the long sides of the detergent inlet 131a that are opposite to each other are referred to as a first side 131c and a second side 131d, and the short sides that are opposite to each other are called a third side 131e and a fourth side 131f. It is called. The first side 131c (upper side in FIG. 10B) is located closer to the route branch 136c (upper right in FIG. 10B) than the second side 131d (lower side in FIG. 10B). Further, the third side 131e (the right side in FIG. 10B) is located closer to the route branch 136c than the fourth side 131f (the left side in FIG. 10B). The detergent outlet 131b described above is located closer to the fourth side 131f than the center of the detergent input section 131.

The detergent path wall 136b is formed to surround a position slightly away from the detergent inlet 131a when viewed from above, and the distance between the detergent path wall 136b and the detergent inlet 131a is along the outer periphery of the detergent inlet 131a. This is the bottom surface of the detergent water flow path TP1 through which water flows. Specifically, the first side path TP11 is provided along the first side 131c, and the end of the first branch rib 136d is located at the corner between the first side 131c and the third side 131e. is connected to. The second branching rib 136e extends along the third side 131e, and its end is located near the corner between the second side 131d and the third side 131e. That is, around the third side 131e, the second branch rib 136e extends so as to divide the area from the detergent inlet 131a (third side 131e) to the detergent path wall 136b, and from the third side 131e to the detergent path wall 136b. The region up to the second branch rib 136e is defined as a central path TP13, and the region from the second branch rib 136e to the detergent path wall 136b is defined as a second side path TP12. The end of the central path TP13 merges with the second side path TP12, and the central path TP13 is connected to the second side path TP12 near the corner between the second side 131d and the third side 131e. A path coupling 136k is provided for merging the two. Further, the end portions of the first side path TP11 and the second side path TP12 are connected to a fourth side path TP14 provided along the fourth side path 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 path 131f is Water can be spread around the entire circumference of 131a, and by flowing sufficient water all over, it is possible to prevent locally accumulated detergent from remaining. In addition, by supplying excess water in the central route TP13 to the second side route TP12, which tends to lack water flow and velocity due to its long distance from the route branch 136c, it is possible to ensure that water is supplied from the second side route TP12. It will be possible to supply water to

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

A plurality of slits 136h are formed at appropriate intervals, and the opening widths of the slits 136h are made non-uniform. That is, in the slit 136h that is wide open, a large amount of water flows down, and in the slit 136h that is narrowly opened, the amount of water that flows down is small. The width of the opening of the slit 136h may be adjusted as appropriate depending on the position where the slit is provided and the distance from other slits. You may also make the space next to it narrower. In this way, by individually adjusting the width of the slits 136h, it is possible to eliminate the difference in flow rate between the slits 136h. This makes it possible to increase the amount of water at certain points, reduce the amount of runoff, and send water further downstream.

The side rib 136f is provided with a rectifying rib 136g that protrudes into each path. By appropriately blocking the water flow by the rectifying rib 136g, the amount of water flowing down from the slit 136h can be adjusted.

A protrusion 136j that protrudes upward is provided on the bottom surface of the first side path TP11 and the second side path TP12, and in a portion along the first side 131c and the second side 131d. In this embodiment, the protrusion 136j is slightly higher than the bottom surfaces of the first side path TP11 and the second side path TP12, and extends downstream from the detergent path wall 136b to the detergent inlet 131a. It extends in an inclined direction so that it approaches. When the flow velocity is high, the water passes along the direction in which the path extends, and the water may not flow down from the desired location. In this embodiment, the protrusion 136j interferes with the water flowing on the bottom surface, thereby changing the direction in which the water flows so that it flows 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, the mutually opposing long sides of the softener inlet 132a will be referred to as a first softener side 132c (upper side in FIG. 10A) and a second softener side 132d (lower side in FIG. 10A). The short sides facing each other are referred to as a third softener side 132e (right side in FIG. 10A) and a fourth softener side 132f (left side in FIG. 10A). The softener water port 137a (upper right in FIG. 10A) is located near the corner between the first softener side 132c and the third softener side 132e. The above-described softener outlet 132b is located closer to the fourth softener side 132f than the center of the softener input portion 132. A conductive wall 132g that stands upward is provided around the softener outlet 132b.

The softener path wall 137b is formed to surround a position slightly away from the softener inlet 132a when viewed from above, and the area between the softener path wall 137b and the softener inlet 132a is the softener inlet. This is the bottom surface of the softener water flow path TP2 through which water flows along the outer periphery of 132a.

On the outer periphery of the softener inlet 132a, a jump rib 137c is provided upright along a first softener side 132c, a second softener side 132d, and a third softener side 132e. The overpass rib 137c is slightly higher than the bottom surface of the softener water flow path TP2. By adjusting the amount of water flowing down into the softener inlet 132a by the overpass rib 137c, water can be distributed all around the softener inlet 132a. Moreover, by adjusting the height of the riding rib 137c, when the amount of water is large, it is possible to cause water to overflow and supply water from above the riding rib 137c. The overpass rib 137c does not completely surround the outer periphery of the softener inlet 132a, and may be interrupted at a location where a large amount of water is desired, such as a corner or a downstream portion of each path.

FIG. 11 is a cross-sectional view of essential parts taken along arrow AA in FIG. 10A. In addition, in FIG. 11, in order to show the structure of the drainage part, not only the manual container 134 but also the drainage part lid 135 that covers the softener outlet 132b are also shown.

The bottom surface of the softener water flow path TP2 is inclined to become lower toward the end. For example, in a portion along the first side 132c of the softener shown in FIG. 11, an inclined portion 137d is provided where the third side 132e of the softener is higher and the fourth side 132f of the softener is lower. It is being In this way, by providing the softener water flow path TP2 with an inclination, water can easily flow toward the end, and water remaining in the path can be prevented. Although FIG. 11 shows the inclined part 137d provided around the softener first side 132c, the inclined part 137d is not limited to this. , and around the softener fourth side 132f.

The drain portion lid 135 has a substantially cylindrical suction portion 135a with an open bottom surface, and the suction portion 135a covers above and around the conductive wall 132g. In other words, the conduction wall 132g is housed inside the suction part 135a, and a gap is provided between the outer wall of the conduction wall 132g and the inner wall of the suction part 135a (hereinafter referred to as a suction path) to form a siphon structure. are doing. A suction port 135b formed by cutting out a portion is provided at the lower end of the suction portion 135a.

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

The embodiment disclosed this time is an illustrative example in all respects, and is not a basis for restrictive interpretation. Therefore, the technical scope of the present invention should not be interpreted only by the above-described embodiments, but should be defined based on the claims. Furthermore, all changes within the meaning and scope of the claims are included.

1 Washing machine 10 Detergent dosing device 100 Case body 106 Main body discharge section 110 Detergent tank 120 Softener tank 130 Manual dosing case 131 Detergent dosing section (an example of the first dosing section)
131a Detergent inlet (an example of the first inlet)
131b Detergent discharge port 131c First side 131d Second side 131e Third side 131f Fourth side 136f Side rib 136g Rectifying rib 136h Slit 137c Overpassing rib 137d Inclined part 132 Softener input part (second input part) One case)
140 Valve mechanism 141 Water supply port TP1 Detergent water flow path (an example of the first water flow path)
TP11 First side route TP12 Second side route TP13 Center route TP14 Fourth side route

Claims (10)

A detergent dispenser for dispensing detergent into a washing machine,
a first input section into which a first detergent is input;
a second input section into which a second detergent is input;
a water supply port that takes in water to be poured into the first input part and the second input part;
a first water flow path that guides water taken in from the water supply port to the first input part;
and a main body discharge part for discharging detergent to be put into the washing machine,
The first input section has a first input opening having 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 flow path is provided with a path branch that branches flowing water into a first side path, a second side path, and a center path,
the first side path is provided along the first side;
the second side path is provided along the second side;
the central path is provided along the third side;
A detergent dispensing device, wherein end 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 dosing device according to claim 1,
The first input port includes side ribs erected along the first side, the second side, and the third side,
The detergent injection device, wherein the side rib is provided with a slit that allows water to flow into the first injection port. The detergent dosing device according to claim 2,
A detergent dispensing device characterized in that the side ribs are provided with rectifying ribs that protrude toward each path. The detergent injection device according to claim 2 or 3,
A detergent dispensing device characterized in that a plurality of the slits are provided, and the opening widths of the slits are non-uniform. The detergent injection 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 dispensing device characterized in that an end portion of the central path merges with the second side path. The detergent injection device according to any one of claims 1 to 5,
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 path, and is located at the center of the first water path. A detergent dispensing device characterized in that the width in the width direction of the path is narrower than that of the first side path and the second side path. The detergent injection device according to any one of claims 1 to 6,
A detergent dispensing device characterized in that a protrusion projecting upward is provided on a bottom surface of the first side path and the second side path. The detergent injection device according to any one of claims 1 to 7,
comprising a second water flow path that guides water taken in from the water supply port to the second input part,
The second input section has a second input port that is open at the top,
The detergent loading device, wherein the second loading port is provided with a riding rib that stands upright along the outer periphery. The detergent injection device according to claim 8,
A detergent dispensing device characterized in that the bottom surface of the second water flow path is sloped so as to become lower toward the end. A washing machine comprising the detergent charging device according to any one of claims 1 to 9.

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