JP2022029494A - Detergent charging unit and washing machine - Google Patents

Abstract

To provide a detergent charging unit in which the sticking of a liquid detergent is hard to occur, and a washing machine.SOLUTION: A detergent charging unit 10 comprises: a case body 100 having a recessed part 109; and a case 140 for manual charging attached to the recessed part 109. A bottom face of a detergent charging part 141 in the case 140 for manual charging is provided with an opening 144. Regarding the recessed part 109, in a part directly below the opening 144, a gradation part 110 formed so as to be lower than the circumference is formed. Further, the gradation part 110 is provided with an exhaust duct 106 performing the exhaust of a detergent from the detergent charging unit 10 to a cleaning tank.SELECTED DRAWING: Figure 9

Description

The present invention relates to a detergent charging unit used for charging a detergent or a softener into a washing tub and a washing machine including the detergent charging unit.

A washing machine equipped with an automatic liquid agent charging unit for automatically charging a liquid agent such as a liquid detergent or a softener into a washing tub is known. In such an automatic liquid charge charging unit, the liquid liquid automatically charged into the washing tub is housed in a liquid agent tank (detergent tank or softener tank). Further, the liquid agent automatic charging unit has not only an automatic charging unit for automatically charging the liquid agent into the washing tub, but also a manual charging unit for the user to manually charge the detergent (including powder detergent) or the softener. There are also things.

As a manual charging unit in the detergent charging unit, Patent Document 1 discloses a configuration having a detergent charging unit frame and a detergent storage container that can be removed from the detergent charging unit frame. In the configuration of Patent Document 1, detergent is charged / injected into the detergent storage container, the detergent dissolved in water is discharged from the detergent storage container to the detergent charging unit frame, and the detergent is provided at the bottom of the detergent charging unit frame. It is designed to be poured into the washing tub from the water supply port.

Japanese Unexamined Patent Publication No. 2017-74287

In the configuration of Patent Document 1, an opening is provided at the bottom of the detergent storage container, and the detergent and the injected water fall from this opening onto the detergent input section frame. At this time, the undissolved residue of the powder detergent or the liquid detergent scattered by the drop may spread and stick to the bottom of the detergent charging part frame. Therefore, in the configuration of Patent Document 1, it is necessary to remove the detergent storage container and clean the detergent charging section frame, which requires complicated work for the user.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a detergent charging unit and a washing machine in which detergent sticking is less likely to occur.

In order to solve the above problems, the detergent charging unit according to the first aspect of the present invention is a detergent charging unit provided in a washing machine and capable of manually charging detergent by a user, and is a case having a recess. It is provided with a main body and a detergent charging case attached to the recess, and an opening is provided on the bottom surface of the detergent charging case, and the recess is formed lower than the surroundings in a portion directly below the opening. The stepped-down portion is formed, and the step-down portion is characterized in that a discharging portion for discharging the detergent from the detergent charging unit to the washing tub is provided.

According to the above configuration, the detergent that falls from the opening on the bottom surface of the detergent charging case into the recess does not scatter to areas other than the step-down portion, and is unlikely to adhere to the portion other than the step-down portion. In addition, the detergent that has fallen into the stepped portion is easily washed away by the water that is injected when the detergent is poured into the washing tub. This makes it possible to prevent the liquid agent from sticking to the concave portion of the case body.

Further, the detergent charging unit has an inclined portion formed on the bottom surface of the step-down portion having an inclined surface that is low on the side close to the discharge portion and increases in the direction away from the discharge portion. It can be configured.

According to the above configuration, when the detergent is put into the washing tub, it is possible to generate a circular water flow using the inclined portion with respect to the water that has fallen into the stepped portion. With such a circular water flow, it is possible to effectively stir the detergent charged in the step-down portion and improve the cleaning effect on the bottom surface of the step-down portion.

Further, in the detergent charging unit, the detergent charging unit can automatically charge the liquid to the washing tub and is removable from the case body to accommodate the liquid to be automatically charged into the washing tub. A liquid agent tank is provided, and the case main body is provided with a flowing water path connecting the mounting portion of the liquid agent tank and the step-down portion, and a part of the space between the flowing water path and the step-down portion is provided. The configuration may be divided by ribs except for the notch.

According to the above configuration, when water is poured into the mounting portion of the liquid agent tank for cleaning, the water poured into the mounting portion of the liquid agent tank can be allowed to flow into the stepped-down portion through the flowing water path. Further, since the flow water path and the step-down portion are separated by ribs except for a part of the notch portion, it is possible to prevent backflow from the step-down portion to the liquid agent tank through the running water accounting.

Further, in order to solve the above-mentioned problems, the washing machine according to the second aspect of the present invention is characterized by including the above-mentioned detergent charging unit.

The detergent charging unit and the washing machine of the present invention prevent the detergent from splashing into the surrounding area by dropping the detergent that falls into the recess from the opening on the bottom of the detergent charging case to the stepped portion, and the liquid agent in the recess of the case body. It has the effect of preventing sticking.

It shows one embodiment of this invention, and is the perspective view which shows the appearance of the detergent addition unit. It is a perspective view which shows the appearance example of the washing machine which uses the detergent input unit. It is a back view of the detergent charging unit. It is a back view of the detergent charging unit 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 unit for demonstrating the addition operation of a detergent and a liquid agent. It is an exploded perspective view of the manual addition part in a detergent addition unit. It is a top view which shows the state which the upper lid is removed in the manual loading part. It is a vertical sectional view of the part including a recess in a detergent charging unit. It is a vertical sectional view of the part including a recess in a detergent charging unit.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. First, the basic configuration of the detergent charging unit 10 to which the present invention is applied and the operation when the detergent or liquid agent is charged will be briefly described. FIG. 1 is a perspective view showing the appearance of the detergent charging unit 10. FIG. 2 is a perspective view showing an external example of the washing machine 1 using the detergent charging unit 10. The detergent here refers to a liquid detergent and a powder detergent. Further, the liquid agent refers to a liquid agent detergent and a clothing treatment agent such as a softener. Further, the washing machine 1 shown in FIG. 1 exemplifies a drum type washing machine, 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 unit 10, a detergent tank 120, a softener tank 130, and a manual charging case (detergent charging case) 140 can be attached to the case body 100. The detergent tank 120 and the softener tank 130 are liquid agent tanks for accommodating the liquid agent automatically charged into the washing tub of the washing machine 1, the detergent tank 120 contains the liquid detergent, and the softener tank 130 is flexible. Contains agents and fabric softener. The manual charging case 140 is a case for a user to manually charge a detergent, a softener, or the like, and has a detergent charging unit 141 and a softener charging unit 142.

A valve mechanism 150 is attached to the rear of the detergent charging unit 10. The valve mechanism 150 has a water supply port 151 for flowing tap water supplied to the detergent input unit 10. Further, a plurality of solenoid valves are provided inside the valve mechanism 150, and by appropriately controlling the opening and closing of these plurality of solenoid valves, tap water can be supplied to the detergent charging unit 10 by different routes. It has become.

The detergent charging unit 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 141 and the softener charging unit 142 of the detergent charging unit 10 are exposed, and the user can manually charge the detergent or the softener. The manual charging case 140 is configured so that it cannot be removed from the detergent charging unit 10. Further, when the lid 4 is opened, the detergent tank 120 and the softener tank 130 are exposed, and the user can attach / detach the detergent tank 120 or the softener tank 130 to / from the washing machine 1. This allows the user to remove the detergent tank 120 or the softener tank 130 to replenish the liquid.

Further, the detergent charging unit 10 exposes the water supply port 151 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 151 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 unit 10. A liquid agent exchange chamber is provided on the back surface of the detergent charging unit 10, and as shown in FIG. 3, a back cover 101 is attached to the liquid agent exchange chamber.

FIG. 4 is a back view of the detergent charging unit 10 with the back cover 101 removed from the case body 100. 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. Grooves are formed on the back surface of the case body 100, and these grooves function 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. do. That is, the liquid agent exchange chamber of the detergent charging unit 10 includes a part of the first water supply path P1 and the second water supply path P2.

In the first groove 102, an inflow port 102a into which tap water flows from the valve mechanism 150 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 150 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 120 is provided in the middle of the first groove portion 102, so that the backflow from the first water supply path P1 to the detergent tank 120, or the detergent tank 120 is not installed or not installed. In the case of complete mounting, leakage from the first water supply path P1 to the detergent tank 120 mounting portion of the case body 100 is prevented. A check valve 105 connected to the softener tank 130 is provided in the middle of the second groove 103, and the backflow from the second water supply path P2 to the softener tank 130 or the softener tank 130 is not installed. In the case of incomplete mounting, leakage from the second water supply path P2 to the softener tank 130 mounting portion of the case body 100 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 141 of the manual charging case 140.

FIG. 5 is a top view showing a portion of the case body 100 from which the manual loading case 140 has been removed. As shown in FIGS. 3 to 5, a discharge duct (discharge unit) 106 is provided on the bottom surface of the case body 100 directly below the detergent charging unit 141 of the manual charging case 140. The water that has flowed into the detergent charging section 141 is supplied to the washing tub of the washing machine 1 through the discharge duct 106. Further, as will be described in detail later, the water that has flowed into the softener charging section 142 of the manual loading case 140 is also supplied to the washing tub of the washing machine 1 through the discharge duct 106.

Subsequently, the operation of adding the detergent or the liquid agent in the detergent charging unit 10 will be described with reference to FIG. FIG. 6 is a schematic view of a detergent charging unit 10 for explaining a detergent and liquid charging operation.

As shown in FIG. 6, in the valve mechanism 150, the water supply path from the water supply port 151 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 152 and a negative pressure pipe 154 are arranged in order from the upstream side in the third water supply path P3. A solenoid valve 153 and a negative pressure pipe 155 are arranged in order from the upstream side in the fourth water supply path P4. The negative pressure pipes 154 and 155 can generate a negative pressure in the fifth water supply path P5 by the Venturi effect. Further, the negative pressure pipes 154 and 155 are connected by a fifth water supply path P5, and a flow meter 156 is arranged in the fifth water supply path P5. However, the valve mechanism 150 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 141 of the manual charging case 140 as described above.

First, a liquid agent charging operation (automatic charging operation of liquid detergent) when a specified amount of liquid detergent is automatically charged from the detergent tank 120 will be described. In the first stage of this liquid agent charging operation, water is supplied from the water supply port 151 while opening both the solenoid valves 152 and 153. The tap water flowing through the first water supply path P1 and the second water supply path P2 pushes up the check valves 108 and 109, which are float valves, to open the float valves, respectively. By the operation of the first stage, all of the first to fourth water supply paths P1 to P4 are filled with tap water and flow out to the detergent charging section 141. 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 120 and the softener tank 130. 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 152 and 153 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 153 is opened to supply water from the water supply port 151. 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 155. Due to this negative pressure, tap water flows from the negative pressure pipe 154 to the negative pressure pipe 155 in the fifth water supply path P5. On the other hand, since both the solenoid valve 152 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 120 to the first water supply path P1 Liquid detergent is drawn into.

The check valve 104 is held in a closed state by the valve member (not shown) inside the check valve 104 being urged toward the detergent tank 120 by a spring (not shown). It is in the open state when it is pulled out by the negative pressure from the first water supply path P1. 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 120 to 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 156, and when the measured value of the flow meter 156 reaches the specified value, the solenoid valve 153 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 120 stays 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 151 while opening both the solenoid valves 152 and 153 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 141, and tap water is sent to the detergent charging section 141 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 152 and 153 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 120 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 liquid agent charging operation (automatic charging operation of the softener) when the specified amount of the softening agent is automatically charged from the softener tank 130 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 152 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 130 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) is charged by the user into the detergent charging section 141 of the manual loading case 140. Water supply at this time is performed with both the solenoid valves 152 and 153 open. When water is supplied with both the solenoid valves 152 and 153 open, the check valves 104 and 105 remain closed, so that only tap water is supplied to the detergent input section 141. That is, tap water supplied to the detergent charging unit 141 can be used to dissolve the detergent in the detergent charging unit 141 and charge it into the washing tub.

Finally, at the time of manual charging of the softener, a predetermined amount of the softener is charged by the user into the softener charging section 142 of the manual charging case 140. 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 142 by the water supply route of another system. That is, in the valve mechanism 150, water is supplied from the water supply port 151 by using another solenoid valve and a water supply path (not shown in FIG. 6). In the present embodiment, as shown in FIG. 4, the third groove 118 formed on the back surface of the case body 100 is one of the “water supply paths of another system (water supply path formed by attaching the back cover 101)”. It is a department. In the third groove 118, an inflow port 118a into which tap water flows in from the valve mechanism 150 is provided at the upstream end of the water supply path, and an outflow port 118b is provided at the downstream end to allow tap water to flow out. ing.

A drainage portion having a siphon structure is formed on the bottom surface of the softener charging portion 142. Therefore, when the water level in the softener charging section 142 becomes higher than a predetermined height due to the water supply to the softener charging section 142, the mixed liquid of tap water and the softener is drained from this drainage section and is discharged from the discharge duct 106. It is put into the washing tub.

The above is the basic configuration of the detergent charging unit 10 to which the present invention is applied and the charging operation of the detergent and the softener. Next, the features of the detergent charging unit 10 according to the present embodiment are shown in FIGS. 7 to 10. Will be described with reference to. FIG. 7 is an exploded perspective view of the manual charging section of the detergent charging unit 10. FIG. 8 is a top view showing a state in which the upper lid 140B is removed in the manual loading portion.

As shown in FIG. 7, in the manual charging section of the detergent charging unit 10, a recess 109 is provided in the case body 100, and the manual loading case 140 is mounted in the recess 109. The manual charging case 140 is composed of a lower case 140A and an upper lid 140B, and the detergent charging section 141 and the softener loading section 142 described above are each formed in a concave shape in the lower case 140A. Further, the cap member 143 is arranged in the softener charging portion 142 of the lower case 140A.

As shown in FIG. 8, an opening 144 is formed at the bottom of the detergent charging section 141. The detergent charged into the detergent charging unit 141 falls from the opening 144 into the recess 109 together with the water injected into the detergent charging unit 141. Water is injected into the detergent charging section 141 through the water supply port 145 and the water injection groove 146 formed on the upper surface of the lower case 140A.

That is, the water supply port 145 is connected to the first water supply path P1 and the second water supply path P2 described above, and serves as an outlet for water flowing through the first water supply path P1 and the second water supply path P2. The water injection groove 146 serves as a water injection path for guiding the water flowing out from the water supply port 145 to the detergent charging section 141. When the detergent charging unit 10 is used, the water supply port 145 and the water injection groove 146 are covered with the upper lid 140B, and water leakage from the water supply port 145 and the water injection groove 146 to the outside of the detergent charging unit 10 is prevented. Further, a part of the detergent charged into the detergent charging unit 141 (for example, a stock solution of powder detergent or liquid detergent) falls from the opening 144 into the recess 109 even before water is injected into the detergent charging unit 141.

On the other hand, a tubular drainage port 142a (see FIG. 9) standing upward from the bottom surface is formed at the bottom of the softener charging portion 142. Then, by fitting the cap member 143 into the drainage port 142a from above, the drainage portion of the siphon structure described above is formed.

9 and 10 are vertical cross-sectional views of a portion of the detergent charging unit 10 including the recess 109. 9 is a sectional view taken along the line AA of FIG. 8, and FIG. 10 is a sectional view taken along the line BB of FIG. As shown in FIGS. 8 to 10, on the bottom surface of the recess 109, a stepped-down portion 110 formed lower than the surroundings is formed immediately below the opening 144. Further, the discharge duct 106 is provided in the area of the step drop portion 110.

The detergent charged into the detergent charging section 141 falls from the opening 144 into the step drop section 110. Since the step-down portion 110 is formed lower than the surroundings, the detergent that has fallen into the step-down portion 110 does not scatter to other areas outside the step-down portion 110, but stays in the step-down portion 110. That is, in the detergent charging unit 10 according to the present embodiment, the detergent falling from the detergent charging unit 141 is unlikely to adhere to other than the step-down portion 110. Further, the detergent that has fallen on the step-down portion 110 is easily washed away by the water injected into the detergent charging portion 141. This makes it possible to prevent the detergent from sticking to the recess 109 of the case body 100.

Further, in the formed region of the stepped-down portion 110, an inclined portion 111 is formed in addition to the discharge duct 106. The bottom surface of the inclined portion 111 is an inclined surface that is low on the side close to the discharge duct 106 and becomes higher in the direction away from the discharge duct 106. When water is injected into the detergent charging section 141, the water also falls from the opening 144 into the recess 109. The water that has fallen into the stepped portion 110 does not flow back to the surrounding area, and flows in a circular motion under the guidance of the inclined portion 111. Specifically, a flow is generated along the inclined portion 111 at the lower part of the step-down portion 110, which causes a circular water flow as shown by an arrow F in FIG.

Due to such a circular water flow, effective stirring can be performed for the added detergent in the step-down portion 110. That is, by providing the inclined portion 111 on the bottom surface of the step-down portion 110, the mixed liquid of the detergent and water can flow toward the discharge duct 106 while stirring the detergent and water. Further, since such a circular water flow also has a cleaning effect on the bottom surface of the step-down portion 110, it is possible to more effectively suppress the adhesion of the detergent in the step-down portion 110.

As described above, in the detergent charging unit 10 according to the present embodiment, since it is possible to prevent the detergent from sticking to the recess 109 of the case body 100, the user cares for the case body 100 (the case body with the manual charging case 140 removed). Cleaning of the recess 109 of 100) can be omitted. This eliminates the need to make the manual loading case 140 removable with respect to the case body 100. For example, the manual loading case 140 can be fixed to the case body 100 with screws or the like. As a result, it is possible to suppress troubles such as operating the washing machine 1 without attaching the manual loading case 140. Further, the manual charging case 140 can be easily attached to the case body 100 without a gap, and the reliability of the water injection path to the manual charging case 140 can be improved (water leakage and rattling can be suppressed).

Subsequently, the region of the recess 109 other than the stepped-down portion 110 will be described with reference to FIG. First, as shown in FIG. 5, a first guide region 113 divided by ribs 112 is formed in the recess 109 of the case body 100 below the softener charging portion 142 described above. The first guide region 113 is adjacent to the step-down portion 110 in a plan view, and its bottom surface is higher than the step-down portion 110.

The softener charged into the softener charging section and the water injected into the softener charging section fall into the first guide region 113 through the drainage section of the siphon structure, and fall from the first guide region 113 to the stepped section 110. Flow into. Then, it is put into the washing tub from the step drop portion 110 through the discharge duct 106.

The second guide region 114 shown in FIG. 5 is a running water path connected to the mounting portions of the detergent tank 120 and the softener tank 130 in the case body 100. This is for pouring water into the mounting portion of the detergent tank 120 or the softener tank 130 so that the liquid can be washed when the liquid agent is dropped on the mounting portion. That is, the water that has flowed into the mounting portion of the detergent tank 120 or the softener tank 130 flows into the step-down portion 110 via the second guide region 114. The step drop portion 110 and the second guide region 114 are separated by a rib 115 except for a part of the notch portion 115a. The rib 115 is provided to prevent backflow from the step-down portion 110 to the liquid agent tank side through the second guide region 114. However, water flows from the second guide region 114 to the stepped-down portion 110 through the notch portion 115a.

Further, the third guide region 117 divided by the rib 116 shown in FIG. 5 has a slow leak in the water injection path from the outlet 118b (see FIG. 4) of the third groove portion 118 to the softener charging portion 142, and the softener charging. It is a running water route for flowing the residual water of the part 142. These waters flow into the step-down portion 110 via the third guide region 117.

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 2 Doors 3, 4 Lid 10 Detergent input unit 100 Case body 101 Back cover 102 1st groove 103 2nd groove 104, 105 Check valve 106 Check valve 106 Discharge duct (discharge)
107, 108 Check valve 109 Recessed part 110 Step-down part 111 Inclined part 112 Rib 113 First guide area 114 Second guide area 115 Rib 115a Notch part 116 Rib 117 Third guide area 120 Detergent tank (liquid agent tank)
130 Fabric softener tank (liquid tank)
140 Manual loading case (detergent loading case)
140A Lower case 140B Upper lid 141 Detergent inlet 142 Softener inlet 142a Drain port 143 Cap member 144 Opening 145 Water supply port 146 Water injection groove 150 Valve mechanism 151 Water supply port 152, 153 Solenoid valve 154, 155 Negative pressure pipe 156 Flow meter P1 ~ P5 1st ~ 5th water supply route

Claims (4)

It is a detergent injection unit that is installed in the washing machine and allows the user to manually inject the detergent.
The case body with a recess and
It is equipped with a detergent charging case that is attached to the recess.
An opening is provided on the bottom surface of the detergent charging case.
In the recess, a stepped-down portion formed lower than the surrounding portion is formed in the portion directly below the opening.
The detergent charging unit is characterized in that the step-down portion is provided with a discharging unit for discharging the detergent from the detergent charging unit to the washing tub. The detergent charging unit according to claim 1.
The detergent charging unit is characterized in that the bottom surface of the stepped-down portion is formed with an inclined portion having an inclined surface that is low on the side close to the discharge portion and increases in a direction away from the discharge portion. .. The detergent charging unit according to claim 1 or 2.
The detergent charging unit is equipped with a liquid agent tank that can automatically charge the liquid to the washing tub, is removable from the case body, and stores the liquid to be automatically charged into the washing tub.
The case body is provided with a flowing water path connecting the mounting portion of the liquid agent tank and the stepped-down portion, and ribs are provided between the flowing water path and the stepped-down portion except for a part of a notch. Detergent input unit characterized by being classified by. A washing machine comprising the detergent charging unit according to any one of claims 1 to 3.

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