CN114059313A - Detergent feeding unit and washing machine - Google Patents

Abstract

The detergent input unit is included in the washing machine, and enables a user to manually input detergent. The detergent input unit includes a box body having a recess; and a detergent input box body which is installed on the concave part. The bottom surface of the detergent feeding box body is provided with an opening. In the concave portion, a stepped portion formed lower than the periphery is formed in a portion right below the opening. The step-down part is provided with a discharge part which discharges the detergent from the detergent input unit to the washing tank.

Description

Detergent feeding unit and washing machine

Technical Field

One aspect of the present invention relates to a detergent supply unit for supplying a detergent and a softener to a washing tub, and a washing machine including the same.

Background

There is known a washing machine including an automatic liquid agent supply unit for automatically supplying liquid agent such as liquid detergent and softener into a washing tub. In such an automatic liquid agent charging unit, the liquid agent automatically charged into the washing tank is stored in a liquid agent tank (detergent tank, softener tank).

The automatic liquid agent supply unit includes not only an automatic supply unit for automatically supplying the liquid agent to the washing tub, but also a manual supply unit for manually supplying a detergent (including a powdery detergent) or a softener to a user.

As a manual input unit of the detergent input unit, japanese patent application laid-open No. 2017-74287 discloses a structure having a detergent input unit housing and a detergent storage container detachable from the detergent input unit housing. In the structure of jp 2017 a-74287, a detergent container is filled with a detergent, the detergent dissolved in water is discharged from the detergent container to a detergent input section case, and the detergent is input to a washing tank through a water supply port provided at the bottom of the detergent input section case.

Disclosure of Invention

In the structure of jp 2017-74287 a, an opening is provided in the bottom of a detergent storage container, and a detergent and water after water injection are dropped from the opening into a detergent input section casing. In this case, the powder detergent or the liquid detergent scattered by the falling may remain dissolved and may be diffused and adhered to the bottom of the detergent input portion case. Therefore, in the structure of jp 2017-74287 a, the cleaning of the detergent input section case needs to be performed by removing the detergent storage container, and a complicated operation is required for the user.

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

In order to solve the above problem, a first aspect of the present invention is a detergent supply unit included in a washing machine, the detergent supply unit being capable of being manually supplied with detergent by a user, the detergent supply unit including: a cartridge body having a recess; and a detergent input box body which is installed in the concave part, wherein the bottom surface of the detergent input box body is provided with an opening, a step-down part which is formed below the opening and is lower than the periphery is formed in the concave part, the step-down part is provided with a discharging part, and the discharging part discharges the detergent from the detergent input unit to the washing tank.

According to the above configuration, the detergent dropped into the recess from the opening in the bottom surface of the detergent input case does not scatter to other regions than the stepped portion, and is less likely to adhere to the portions other than the stepped portion. In addition, the detergent falling to the stepped-down portion is easily washed away by water injected when the detergent is poured into the washing tub. This can prevent the liquid agent from adhering to the recess of the case body.

The detergent supply unit may be configured as follows: the bottom surface of the stepped-down portion is formed with an inclined portion having an inclined surface which is lower on a side close to the discharge portion and becomes higher toward a direction away from the discharge portion.

According to the above configuration, when detergent is supplied into the washing tub, a circular water flow using the inclined portion can be generated in the water falling into the stepped-down portion. The detergent injected into the reduced-order portion can be effectively stirred by the circular water flow, so that the cleaning effect of the bottom surface of the reduced-order portion is improved.

The detergent supply unit may be configured as follows: the detergent input unit comprises a liquid agent tank which can automatically input the liquid agent into the washing tank, is detachable relative to the box body and contains the liquid agent automatically input into the washing tank, the box body is provided with a water flowing path connected with the installation part of the liquid agent tank and the step-down part, and the water flowing path and the step-down part are divided by a rib except a part of a notch.

According to the above configuration, when the cleaning is performed by injecting water into the mounting portion of the liquid agent tank, the water injected into the mounting portion of the liquid agent tank can be made to flow into the stepped-down portion through the water flow path. Further, since the flow path and the stepped portion are divided by the rib except for a part of the notch portion, it is possible to prevent the occurrence of the reverse flow from the stepped portion to the liquid agent tank via the flow path.

In order to solve the above problem, a washing machine according to a second aspect of the present invention includes the detergent supply unit described above.

The detergent feeding unit and the washing machine according to one aspect of the present invention can prevent the detergent falling from the bottom opening of the detergent feeding box to the recess from falling to the stepped portion, thereby preventing the detergent from scattering to the surrounding area and preventing the liquid agent from adhering to the recess of the box body.

Drawings

Fig. 1 is a view showing an embodiment of the present invention, and is a perspective view showing an appearance of a detergent supply unit.

Fig. 2 is a perspective view showing an example of an external appearance of the washing machine using the detergent input unit.

FIG. 3 is a rear view of the detergent dispenser unit.

Fig. 4 is a rear view of the detergent dispenser unit with the back cover removed from the box body.

Fig. 5 is a plan view showing a portion of the cartridge body from which the manual insertion cartridge is removed.

FIG. 6 is a schematic diagram of a detergent supply unit for explaining a supply operation of a detergent or a liquid agent.

Fig. 7 is an exploded perspective view of a manual input part in the detergent input unit.

Fig. 8 is a plan view showing a state where the upper cover is removed from the manual input unit.

Fig. 9 is a vertical cross-sectional view of a portion including a recess in the detergent feeding unit.

Fig. 10 is a vertical cross-sectional view of a portion including a recess in the detergent loading unit.

Detailed Description

Hereinafter, an embodiment of one embodiment of the present invention will be described in detail with reference to the drawings. First, a basic configuration of the detergent supply unit 10 to which an embodiment of the present invention is applied and an operation when a detergent or a liquid agent is supplied will be briefly described. Fig. 1 is a perspective view showing an appearance of a detergent input unit 10. Fig. 2 is a perspective view showing an example of an external appearance of the washing machine 1 using the detergent input unit 10. Further, the detergent herein refers to liquid detergents and powder detergents. The liquid agent is a liquid detergent, a softener, or other laundry treatment agent. Further, although the washing machine 1 shown in fig. 2 exemplifies a drum-type washing machine, the present invention is not limited thereto, and a washing machine to which the present invention is applied may be a vertical-type washing machine.

As shown in fig. 1, the detergent supply unit 10 can mount a detergent tank 120, a softener tank 130, and a manual supply cartridge (detergent supply cartridge) 140 on a cartridge body 100. The detergent tank 120 and the softener tank 130 are liquid agent tanks for storing liquid agents to be automatically put into the washing tub of the washing machine 1, the detergent tank 120 stores liquid detergent, and the softener tank 130 stores softener, bleaching agent, and the like. The manual feeding cassette 140 is a cassette for a user to manually feed detergent, softener, and the like, and includes a detergent feeding unit 141 and a softener feeding unit 142.

A valve mechanism 150 is installed behind the detergent input unit 10. The valve mechanism 150 has a tap water supply port 151 for allowing the supplied tap water to flow into the detergent dispenser unit 10. Further, a plurality of solenoid valves are provided inside the valve mechanism 150, and tap water can be supplied to the detergent input unit 10 through different paths by appropriately controlling the opening and closing of the plurality of solenoid valves.

The detergent supply unit 10 is disposed in the washing machine 1 shown in fig. 2 in the vicinity of the upper left side as viewed from the front side (the side where the door 2 is disposed) in the washing machine 1. The upper surface of the washing machine 1 is provided with a cover 3 and a cover 4. When the cover 3 is opened, the detergent input portion 141 and the softener input portion 142 of the detergent input unit 10 are exposed, and the user can manually input the detergent or the softener. The manual feeding box 140 is not detachable from the detergent feeding unit 10. When the cover 4 is opened, the detergent tank 120 and the softener tank 130 are exposed, and the user can attach and detach the detergent tank 120 or the softener tank 130 to and from the washing machine 1. Thus, the user can remove the detergent tank 120 or the softener tank 130 to replenish the liquid.

In addition, in a state where detergent supply unit 10 is attached to washing machine 1, tap water supply port 151 is exposed near the rear portion of the upper surface of washing machine 1. Thus, the tap water supply port 151 can be connected to a hose through a faucet, and supplied with tap water.

Fig. 3 is a rear view of the detergent dispenser unit 10. A liquid agent exchange chamber is provided on the back surface of the detergent input unit 10, and as shown in fig. 3, a back cover 101 is attached to the liquid agent exchange chamber.

Fig. 4 is a rear view of the detergent dispenser unit 10 with the back cover 101 removed from the cartridge body 100. As shown in fig. 4, a first groove 102, which is a part of a first water supply path P1 described later, and a second groove 103, which is a part of a second water supply path P2 described later, are formed in the rear surface of the cartridge body 100. Further, although the groove portions are formed in the rear surface of the cartridge body 100, these groove portions function as the cylindrical first water supply path P1 and second water supply path P2 by attaching the back cover 101 to the cartridge body 100. That is, the liquid agent exchange chamber of the detergent loading unit 10 includes a part of the first water supply path P1 and a part of the second water supply path P2.

In the first tank 102, an inlet 102a for allowing tap water to flow from the valve mechanism 150 is provided at an upstream end of the water supply path, and an outlet 102b for allowing tap water (or a mixture of tap water and a liquid detergent) to flow out is provided at a downstream end of the water supply path. Similarly, the second tank 103 is provided with an inlet 103a for allowing tap water to flow from the valve mechanism 150 at the upstream end of the water supply path, and an outlet 103b for allowing tap water (or a mixture of tap water and the softener) to flow out at the downstream end. A check valve 104 connected to the detergent tank 120 is provided in the middle of the first groove 102 to prevent backflow from the first water supply path P1 to the detergent tank 120, or to prevent leakage from the first water supply path P1 to the detergent tank 120 mounting portion of the cartridge body 100 when the detergent tank 120 is not mounted or is not fully mounted. A check valve 105 connected to the softener tank 130 is provided in the middle of the second groove 103, and prevents backflow from the second water supply path P2 to the softener tank 130, or leakage from the second water supply path P2 to the softener tank 130 attachment portion of the cartridge body 100 when the softener tank 130 is not attached or incompletely attached. Both the water flowing out of the outlet 102b and the outlet 103b and the liquid detergent are introduced into the detergent inlet 141 of the manual inlet box 140.

Fig. 5 is a plan view showing a portion of the cartridge body 100 from which the manual insertion cartridge 140 is removed. As shown in fig. 3 to 5, on the bottom surface of the cartridge body 100, a discharge pipe (discharge portion) 106 is provided directly below the detergent input portion 141 of the manual input cartridge 140. The water flowing into the detergent input portion 141 is supplied to the washing tub of the washing machine 1 through the discharge pipe 106. Although described in detail later, the water flowing into the softener input portion 142 of the manual input box 140 is also supplied to the washing tub of the washing machine 1 through the discharge pipe 106.

Next, the operation of adding the detergent and the liquid agent in the detergent adding unit 10 will be described with reference to fig. 6. Fig. 6 is a schematic diagram of the detergent supply unit 10 for explaining the supply operation of the detergent and the liquid agent.

As shown in fig. 6, the valve mechanism 150 separates the water supply path from the city water supply port 151 into a third water supply path P3 and a fourth water supply path P4, and the third water supply path P3 is connected to the first water supply path P1 at the cartridge body 100 side and the fourth water supply path P4 is connected to the second water supply path P2. In the third water supply path P3, the electromagnetic valve 152 and the negative pressure pipe 154 are arranged in this order from the upstream side. In the fourth water supply path P4, the electromagnetic valve 153 and the negative pressure pipe 155 are arranged in this order from the upstream side. The negative pressure pipes 154 and 155 may generate a negative pressure in the fifth water supply path P5 by a venturi effect. The negative pressure pipes 154 and 155 are connected by a fifth water supply path P5, and a flow meter 156 is disposed on the fifth water supply path P5. However, the valve mechanism 150 in fig. 6 does not show all the water supply paths and the electromagnetic valves.

In the first water supply path P1, a check valve 107 is provided downstream of the check valve 104 (specifically, downstream of the outlet 102b in the first groove 102). In the second water supply path P2, a check valve 108 is provided downstream of the check valve 105 (specifically, downstream of the outlet 103b in the second groove 103). The check valves 107 and 108 use float valves, and the check valves 107 and 108 are opened and closed by water flows 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 are also merged at the downstream side and flow into the detergent input part 141 of the manual input cartridge 140 as described above.

First, a liquid agent charging operation (automatic liquid detergent charging operation) in the case where a predetermined 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, both the electromagnetic valves 152 and 153 are opened, and water is supplied from the tap water supply port 151 at the same time. The tap water flowing through the first and second water supply paths P1 and P2 pushes up the check valves 107 and 108, which are float valves, respectively, and opens them. By the first stage of operation, all of the first to fourth water supply paths P1 to P4 are filled with tap water and flow out to the detergent dispenser 141. At this time, the check valves 104 and 105 are both in the closed state, and the liquid agent does not flow into the first and second water supply paths P1 and P2 from the detergent tank 120 and the softener tank 130. In addition, little 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 electromagnetic valves 152 and 153 are temporarily closed, and the check valves 107 and 108 as float valves are lowered to be in a closed state.

Next, as a second stage, only the electromagnetic valve 153 is opened to supply water from the city water supply port 151. Thereby, a flow from the fourth water supply path P4 to the second water supply path P2 is generated, and a negative pressure is generated in the negative pressure pipe 155. Due to this negative pressure, the 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 the solenoid valve 152 and the check valve 107 are both in the closed state, the inside of the first water supply path P1 is also in a negative pressure, and due to the negative pressure, the check valve 104 is opened, and the liquid detergent is introduced from the detergent tank 120 into the first water supply path P1.

Further, since the valve member (not shown) inside the check valve 104 is biased toward the detergent tank 120 by a spring (not shown), the check valve 104 is held in the closed state, and when the valve member is pulled out by the negative pressure from the first water supply path P1, the check valve 104 is in the open state. The check valve 105 provided in the second water supply path P2 has the same configuration as the check valve 104.

In the second stage of operation, an amount of liquid detergent equivalent to tap water flowing through the fifth water supply path P5 is introduced from the detergent tank 120 into the first water supply path P1. Therefore, in the second stage, the flow rate of the 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 a predetermined value, the electromagnetic valve 153 is closed, and the operation in the second stage is terminated. In addition, at the end time point of the second stage, the liquid detergent introduced 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 next third stage, water is supplied from the city water supply port 151 while both of the electromagnetic valves 152 and 153 are opened again. Thus, the mixed liquid of the tap water and the liquid detergent is sent from the first water supply path P1 to the detergent input part 141, and the tap water is sent from the second water supply path P2 to the detergent input part 141. 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 electromagnetic valves 152 and 153 are closed, and the automatic liquid detergent supply operation is completed.

In the automatic input operation of the liquid detergent, a predetermined amount of the liquid detergent is introduced from the detergent tank 120 into the first water supply path P1 in the second stage, but a maximum predetermined amount that can be introduced is defined so that the introduced liquid detergent does not flow into the fifth water supply path P5. Therefore, when the detergent exceeding the maximum predetermined amount is to be supplied to the washing tub, the above-described automatic supply operation may be performed a plurality of times.

The liquid agent charging operation (automatic charging operation of the softener) when a predetermined amount of the softener 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 softener throwing operation, only the solenoid valve 152 is opened in the second stage. Thus, in the automatic softener throwing operation, a negative pressure is generated in the second supply water path P2, the check valve 105 opens, and the softener is introduced from the softener tank 130 into the second supply water path P2.

When the detergent is manually input, the user inputs a predetermined amount of detergent (liquid detergent or powder detergent) to the detergent input portion 141 of the manual input case 140. The water supply at this time is performed in a state where both the electromagnetic valves 152 and 153 are opened. When water is supplied in a state where both the solenoid valves 152 and 153 are open, only tap water is supplied to the detergent input part 141 since the check valves 104 and 105 remain closed. That is, the detergent in the detergent input part 141 can be dissolved and input into the washing machine tank by the tap water supplied to the detergent input part 141.

Finally, when the softener is manually input, the user inputs a predetermined amount of the softener into the softener input portion 142 of the manual input cartridge 140. However, in this case, the water is supplied to the softener-introducing part 142 through a water supply path of another system without using the first to fourth water supply paths P1 to P4. That is, in the valve mechanism 150, water is supplied from the tap water supply port 151 using another electromagnetic valve and a water supply path, which are not shown in fig. 6. In the present embodiment, as shown in fig. 4, the third groove 118 formed in the rear surface of the cartridge body 100 serves as a part of "a water supply path of another system (a water supply path formed by attaching the back cover 101)". The third tank 118 is provided with an inlet 118a for allowing tap water to flow from the valve mechanism 150 at an upstream end of the water supply path, and an outlet 118b for allowing tap water to flow out at a downstream end thereof.

A drain portion having a siphon structure is formed on the bottom surface of the softener supply portion 142. Therefore, when the water level in the softener feeding part 142 reaches a predetermined height or more by the water supply to the softener feeding part 142, the mixed liquid of the tap water and the softener is discharged from the drain part and fed into the washing tub from the discharge pipe 106.

The above is the basic configuration of the detergent supply unit 10 and the supply operation of the detergent and softener to which an embodiment of the present invention is applied, and next, the feature of the detergent supply unit 10 according to the present embodiment will be described with reference to fig. 7 to 10. Fig. 7 is an exploded perspective view of a manual input part in the detergent input unit 10. Fig. 8 is a plan view showing a state where the upper cover 140B is removed from the manual input unit.

As shown in fig. 7, in the manual input portion of the detergent input unit 10, a recess 109 is provided in the cartridge body 100, and a cartridge 140 for manual input is mounted in the recess 109. The manual feeding case 140 is composed of a lower case 140A and an upper cover 140B, and the detergent feeding portion 141 and the softener feeding portion 142 are formed in the lower case 140A in a recessed shape, respectively. Further, a cover member 143 is disposed in the softener input portion 142 of the lower case 140A.

As shown in fig. 8, an opening 144 is formed in the bottom of the detergent input portion 141. The detergent put into the detergent input portion 141 drops into the recess 109 from the opening 144 together with the water injected into the detergent input portion 141. Water is injected into detergent input portion 141 through water inlet 145 and water injection groove 146 formed on the upper surface of lower case 140A.

That is, the water supply port 145 is connected to the first and second water supply paths P1 and P2, and serves as an outlet for water flowing through the first and second water supply paths P1 and P2. Water injection tank 146 is a water injection path for guiding water flowing out from water supply inlet 145 to detergent input unit 141. When the detergent supply unit 10 is used, the water supply port 145 and the water injection tank 146 are covered with the upper cover 140B, and water leakage from the water supply port 145 and the water injection tank 146 to the outside of the detergent supply unit 10 is prevented. A part of the detergent (for example, a stock solution of a powdered detergent or a liquid detergent) put into the detergent input portion 141 also falls down from the opening 144 into the recess 109 before the water is injected into the detergent input portion 141.

On the other hand, a cylindrical drain port 142a (see fig. 9) is formed in the bottom of the softener-feeding portion 142 so as to stand upward from the bottom surface. Then, the cover member 143 is fitted into the drain port 142a from above, thereby forming the drain portion of the siphon structure.

Fig. 9 and 10 are vertical sectional views of a portion including the recess 109 in the detergent feeding unit 10. Fig. 9 is a sectional view taken along line a-a of fig. 8, and fig. 10 is a sectional view taken along line B-B of fig. 8. As shown in fig. 8 to 10, a stepped portion 110 is formed on the bottom surface of the recess 109, below the opening 144, lower than the surrounding area. In addition, the discharge pipe 106 is provided in the region of the stepped-down portion 110.

The detergent put into the detergent input part 141 falls into the stepped part 110 through the opening 144. Since the stepped portion 110 is formed lower than the surrounding, the detergent falling in the stepped portion 110 is not scattered to other regions than the stepped portion 110 and remains in the stepped portion 110. That is, in the detergent supply unit 10 according to the present embodiment, the detergent falling from the detergent supply portion 141 is less likely to adhere to the detergent supply unit except the stepped-down portion 110. In addition, the detergent falling on the stepped portion 110 is easily washed off by the water injected into the detergent input portion 141. This can prevent adhesion of the detergent in the recess 109 of the cartridge body 100.

In addition, in the formation region of the stepped portion 110, an inclined portion 111 is formed in addition to the discharge pipe 106. The bottom surface of the inclined portion 111 is formed as an inclined surface which is lower on the side closer to the discharge pipe 106 and becomes higher in the direction away from the discharge pipe 106. When water is injected into the detergent input portion 141, the water also falls into the recess 109 through the opening 144. The water falling into the stepped portion 110 flows in a circular shape guided by the inclined portion 111 without flowing backward to the surrounding area. Specifically, a flow along the inclined portion 111 is generated at the lower portion of the stepped-down portion 110, thereby generating a circular water flow as indicated by an arrow F in fig. 9.

The circular water flow can effectively stir the detergent to be supplied into the reduced-order portion 110. That is, by providing the inclined portion 111 on the bottom surface of the stepped-down portion 110, the mixed liquid of the detergent and the water can be discharged to the discharge pipe 106 while stirring the detergent and the water. In addition, since such a circular water flow also has a cleaning effect on the bottom surface of the stepped portion 110, adhesion of the detergent in the stepped portion 110 can be more effectively suppressed.

In this way, in the detergent supply unit 10 of the present embodiment, maintenance of the cartridge body 100 by the user (cleaning of the recess 109 of the cartridge body 100 when the manual supply cartridge 140 is removed) can be omitted in order to prevent adhesion of the detergent in the recess 109 of the cartridge body 100. This eliminates the need to make the manual insertion cartridge 140 detachable from the cartridge body 100. For example, the manual insertion case 140 may be fixed to the case body 100 using screws or the like. As a result, the following failures can be suppressed: the washing machine 1 is operated without forgetting to attach the manual input box 140. Further, the manual feeding cartridge 140 can be easily attached to the cartridge body 100 without a gap, and the reliability of the water supply path to the manual feeding cartridge 140 can be improved (water leakage and sloshing can be suppressed).

Next, a region other than the stepped portion 110 in the recess 109 will be described with reference to fig. 5. First, in the concave portion 109 of the cartridge body 100, as shown in fig. 5, a first guide region 113 defined by the rib 112 is formed below the softener feeding portion 142. The first guide region 113 is adjacent to the stepped-down portion 110 in a plan view, and has a bottom surface higher than the stepped-down portion 110.

The softener to be fed to the softener feeding portion and the water to be injected to the softener feeding portion fall into the first guide region 113 through the water discharge portion of the siphon structure, and flow into the stepped portion 110 from the first guide region 113. Then, the washing liquid is fed from the reduced-order section 110 to the washing tank through the discharge pipe 106.

The second guide region 114 shown in fig. 5 is a flow path connected to the mounting portions of the detergent tank 120 and the conditioner tank 130 in the cartridge body 100. This is because, when the liquid agent falls into the mounting portion of the detergent tank 120 or the softener tank 130, water can be injected into the mounting portion and the mounting portion can be cleaned. That is, the water flowing into the mounting portion of the detergent tank 120 or the conditioner tank 130 flows into the reduced-order portion 110 via the second guide region 114. The stepped portion 110 and the second guide region 114 are divided by a rib 115 except for a part of the cutout portion 115 a. The rib 115 is provided to prevent a reverse flow from the stepped portion 110 to the liquid agent tank side through the second guide region 114. However, water flows from the second guide region 114 into the stepped-down portion 110 through the cut-out portion 115 a.

The third guide region 117 defined by the rib 116 shown in fig. 5 is a slow leak in the water injection path from the outlet 118b (see fig. 4) of the third groove 118 to the softener input part 142, and a water flow path for flowing the residual water of the softener input part 142. This water flows into the stepped-down portion 110 via the third guide region 117.

The embodiments disclosed herein are illustrative in all respects and should not be construed as limiting. Therefore, the technical scope of the present invention is not to be interpreted only by the above-described embodiments, but is defined by the claims. The scope of the present invention is defined by the appended claims.

Claims (4)

1. A detergent dispenser unit included in a washing machine, the detergent dispenser unit being capable of manual dispensing of a detergent by a user, the detergent dispenser unit comprising:

a cartridge body having a recess; and

a detergent input box body which is installed on the concave part,

the bottom surface of the detergent feeding box body is provided with an opening,

in the concave portion, a step-down portion formed lower than the periphery is formed at a portion right below the opening,

the step-down part is provided with a discharge part which discharges the detergent from the detergent input unit to the washing tank.

2. The detergent dosing unit of claim 1,

the bottom surface of the stepped-down portion is formed with an inclined portion having an inclined surface which is lower on a side close to the discharge portion and becomes higher toward a direction away from the discharge portion.

3. The detergent dispensing unit according to claim 1 or 2,

the detergent input unit comprises a liquid agent tank which can automatically input the liquid agent into the washing tank, is detachable relative to the box body and contains the liquid agent automatically input into the washing tank,

the box body is provided with a water flow path connected with the installation part of the liquid agent tank and the step-down part, and the water flow path and the step-down part are divided by a rib except for a part of the notch.

4. A washing machine is characterized in that a washing machine is provided,

comprising the detergent dosing unit according to any one of claims 1 to 3.

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