JP2022051013A - washing machine - Google Patents

Abstract

To provide a washing machine which suppresses interruption of a siphon phenomenon, and which can surely input a liquid into a washing and dewatering tub.SOLUTION: A washing machine includes: a body; an outer tub which is supported in the body in a vibration-proof manner; a washing and dewatering tub rotatably supported in the outer tub; a liquid agent case 5 formed in a substantially box-like manner, and for supplying the liquid agent inputted inside to the outer tub or the washing and dewatering tub; and a water pouring device for pouring water to the liquid agent case 5. Inside the liquid agent case 5, a discharge path 34 is provided which is formed in a substantially inverted U shape, and which discharges the liquid inside to the outside by the principle of siphon, and between the position where the water of the water pouring device falls and the discharge path 34, a wall 31 extending vertically is formed.SELECTED DRAWING: Figure 9

Description

This disclosure relates to a washing machine.

Patent Document 1 discloses a washing machine that puts a liquid detergent or a softener into a washing / dehydrating tub by a siphon phenomenon.

The washing machine in Patent Document 1 includes a water tank and a detergent charging device for charging a liquid or a liquid mixture into the water tank, and the detergent charging device includes a liquid storage unit capable of storing a liquid or a liquid mixture and a liquid storage unit. A housing lid plate that partially or completely covers the upper part, a first conduction path that is formed in a substantially cylindrical shape inside the liquid storage part and whose lower end opens near the bottom of the liquid storage part, and a first guide. A conduction path coupling that is connected to the upper end of the passage and is formed in an inverted U shape, and one end that is connected to the conduction path coupling that is formed in a substantially cylindrical shape and the other end that opens to the outside of the bottom of the liquid storage portion. However, the liquid input path having the second conduction path arranged outside the first conduction path, and formed by the first conduction path, the conduction path coupling portion, and the second conduction path is one. It is connected by a book path and is partially formed by a housing lid plate.

Japanese Unexamined Patent Publication No. 2017-74284

The present disclosure provides a washing machine capable of suppressing interruption of the siphon phenomenon and reliably charging a liquid into a washing / dehydrating tub.

The washing machine in the present disclosure is formed in a substantially box shape with a main body, an outer tub supported by vibration isolation in the main body, and a washing / dehydrating tub rotatably supported in the outer tub, and is put into the inside. It is equipped with a liquid agent case that supplies the liquid agent into the outer tank or the washing / dehydrating tank, and a water injection device that injects water into the liquid agent case. The inside of the liquid agent case is formed in a substantially inverted U shape, and the liquid inside is siphoned. A discharge path for discharging water to the outside is provided according to the principle of the above, and a wall extending vertically is formed between the position where the water of the water injection device falls and the discharge path.

The washing machine in the present disclosure suppresses the interruption of the siphon phenomenon by suppressing the bubbles generated when the water of the water injection device falls into the discharge path, and reliably puts the liquid into the washing / dehydrating tub. can.

External perspective view of the washing machine according to the first embodiment External perspective view of the washing machine in the state where the lid of the washing machine is opened according to the first embodiment. Cross-sectional view of the main part of the side surface of the washing machine according to the first embodiment An exploded perspective view showing the structure of the top cover unit of the washing machine and the agent charging device according to the first embodiment. An exploded perspective view of the water injection device of the agent charging device of the washing machine according to the first embodiment. External perspective view of the detergent case of the agent charging device of the washing machine according to the first embodiment. Top view of the water injection path portion of the agent charging device of the washing machine according to the first embodiment. Top view of the detergent case of the agent charging device of the washing machine according to the first embodiment. Longitudinal sectional view of the detergent case of the agent charging device of the washing machine according to the first embodiment.

Hereinafter, embodiments will be described in detail with reference to the drawings. However, more detailed explanation than necessary may be omitted. For example, detailed explanations of already well-known matters or duplicate explanations for substantially the same configuration may be omitted. This is to prevent the following explanation from becoming unnecessarily redundant and to facilitate the understanding of those skilled in the art.

It should be noted that the accompanying drawings and the following description are provided for those skilled in the art to fully understand the present disclosure, and are not intended to limit the subject matter described in the claims.

(Embodiment 1)
Hereinafter, embodiments will be described with reference to FIGS. 1 to 9.

[1-1-1. Washing machine configuration]
As shown in FIGS. 1, 2, and 3, a top cover 2 is arranged on the upper part of the main body 1, and a top cover 2 is rotatably provided in the outer tank 14 at a substantially central portion of the top cover 2. A clothes inlet 7 that communicates with the washing / dehydrating tub 6 is formed. The lid 3 is pivotally supported at the rear portion on the upper surface side of the top cover 2, and covers the clothes inlet 7 so as to be openable and closable. A detergent case 5 is provided on the rear surface of the clothes inlet 7 so that it can be pulled out.

The operation display unit 4 is arranged at the rear portion on the upper surface side of the top cover 2 and behind the lid body 3, receives various input settings in the washing operation, and displays the setting contents and the operation status. A control device (not shown) for controlling the operation of the washing machine is arranged below the operation display unit 4.

As shown in FIG. 4, the agent charging device 8 includes a water injection water injection unit 10 composed of a water injection device 9 and a water flow unit 11, and a detergent case 5 housed inside the water injection water flow unit 10.

As shown in FIG. 6, an engaging claw 25 and a push button 24 are formed on the upper portion of the detergent case 5. The engaging claw 25 is configured to engage with the water injection device side engaging portion (not shown) on the lower surface of the water injection device 9 and to be disengaged by pressing the push button 24. As a result, the detergent case 5 is detachably stored in the water injection / flowing water section 10.

As shown in FIG. 5, the water injection device 9 includes a water injection lid 13 that covers the upper surface, a water injection path portion 12 in which a water flow path 27 is formed, and a water injection path section water inlet 17 that communicates with the outside of the water injection path section 12. It is composed of an electromagnetic water supply valve 15 which is connected to the water inlet 17 of the water injection path portion and introduces water so as to be openable and closable.

As shown in FIG. 6, the detergent case 5 has a powder detergent charging unit 18, a liquid detergent charging unit 21, and a softener charging unit 22.

As shown in FIG. 7, the running water path 27 has a running water path 27a for powder detergent and a liquid detergent so as to correspond to the powder detergent charging section 18, the liquid detergent charging section 21, and the softener charging section 22 located below. It is formed by branching into a running water path 27b and a running water path 27c for a softener.

The water flow path 27 is provided with a plurality of water injection ports 28 that communicate with the lower part. The water flow path 27a for powder detergent, the water flow path 27b for liquid detergent, and the water flow path 27c for softener are a part of the water injection port 28, the water injection port 28a for powder detergent, the water injection port 28b for liquid detergent, and the water injection port 28b for softener. Water injection ports 28c are provided respectively.

As shown in FIG. 5, the flowing water portion 11 is formed so as to incline downward toward the clothes inlet 7, and the water and the agent that have reached the flowing water portion 11 flow down the flowing water portion 11 and drain the flowing water portion 11. It is put into the inside of the washing / dehydrating tank 6 from the outlet 11a.

[1-1-2. Detailed configuration of detergent case]
As shown in FIG. 6, the detergent case 5 is formed in a substantially box shape that opens upward, and the inside of the detergent case 5 includes a powder detergent charging unit 18, a liquid detergent charging unit 21, and a softener charging unit 22. Are separated so that they are separate rooms.

In the powder detergent charging portion 18, the rear outer peripheral wall 18a, which is the rear outer peripheral wall, is lower than the side outer peripheral walls 18b on both sides, and the water injected, the powder detergent, and the generated bubbles are discharged from the rear outer peripheral wall 18a. It is discharged to the running water section 11 after overcoming the above. Further, a powder detergent discharge port 19 is provided that opens downward, and the inner bottom surface of the powder detergent input portion 18 is formed so as to be inclined toward the powder detergent discharge port 19. As a result, the water and the powder detergent collected inside in the powder detergent charging section 18 flow down the inner bottom surface and are discharged from the powder detergent discharge port 19 to the running water section 11. Further, a scale 20 formed in a stepped shape is formed in the powder detergent charging section 18. The user can confirm the input amount of the powder detergent by visually recognizing the scale 20.

As shown in FIGS. 6, 8 and 9, the inner bottom surface of the liquid detergent charging section 21 and the softener charging section 22 is provided with a pipeline section 26 and a cap 23 constituting a siphon structure. In the pipeline portion 26, a discharge cylinder-shaped portion 29 communicating with the lower side is formed on the front side, and the upper portion is covered with a cap 23, so that the siphon inflow port communicating with the inside of the softening agent charging portion 22 on the back side side. A suction cylinder shape portion 32 having 33 is formed, and the discharge cylinder shape portion 29 and the suction cylinder shape portion 32 are communicated with each other by an upper curved communication portion 34 formed in the upper portion, and the suction cylinder shape portion 32 and the upper curved portion 32 are communicated with each other. The communication portion 34 and the discharge cylinder-shaped portion 29 form a substantially inverted U-shaped flow path. The inner bottom surface of the liquid detergent charging section 21 and the softener charging section 22 is formed so as to incline downward toward the pipeline section 26 and the cap 23, and a recess 30 is formed around the pipeline section 26 and the cap 23. It is formed.

As shown in FIGS. 6, 8 and 9, the rear side of the recess 30 of the liquid detergent charging section 21 is surrounded by a wall 31 extending vertically on the siphon inlet 33 side, and the wall 31 has a semicircular shape. It is composed of a portion 31a and a straight portion 31b extending from both ends thereof.

In the liquid detergent charging section 21, the position where water falls from the liquid detergent water injection port 28b is separated from the position 35a where the front side water falls and the position 35b where the rear side water falls, and the water is entirely discharged. It is configured to fall.

On the other hand, in the softener charging section 22, the position where water falls from the softener filling port 28c is configured only at the position where the front side water falls, and the rear side of the recess 30 is the softener filling section. It is covered with the rear outer peripheral wall 22a of 22.

[1-2. motion]
The electromagnetic water supply valve 15 is opened at a predetermined timing in the washing operation to introduce water into the water injection device 9. The water introduced into the water injection device 9 is discharged to the detergent case 5 from the water flow unit discharge port 11a through the branching water flow path 27. At this time, the water introduced into the running water path 27a for the powder detergent passes through the water injection port 28a for the powder detergent and is sprinkled into the powder detergent charging section 18, and the water introduced into the running water path 27b for the liquid detergent is the liquid detergent. The water that has passed through the water injection port 28b and is sprinkled into the liquid detergent inlet 21 and introduced into the water flow path 27c for the softener passes through the water injection port 28c for the softener and is sprinkled into the softener inlet 22.

The water sprinkled on the powder detergent charging unit 18 dissolves the charged powder detergent and foams a part of the dissolved water, and is discharged from the powder detergent discharge port 19 to the running water unit 11 in the washing / dehydrating tank 6. Is thrown into.

On the other hand, the water sprinkled on the liquid detergent charging section 21 or the softener charging section 22 gradually increases the water level while diluting the liquid detergent or the softener. Hereinafter, a liquid detergent will be described as an example.

The water level of the liquid detergent charging section 21 rises beyond the siphon inflow port 33, which is a gap between the inner bottom surface of the liquid detergent charging section 21 and the cap 23, and reaches the upper end of the liquid detergent charging section 21.

Liquid detergents are generally much more viscous than water and have very high resistance as they pass through the siphon inlet 33 and the suction tube shaped portion 32. Until the liquid detergent is sufficiently diluted with water, the inside of the siphon inlet 33 is filled with a cleaning liquid having a high concentration of the liquid detergent, so that the flow velocity of the cleaning liquid at the siphon inlet 33 is slow.

As the amount of water injected into the liquid detergent inlet 21 increases, the concentration of the liquid detergent is diluted and the viscosity of the cleaning liquid in the siphon inlet 33 and the suction cylinder shape portion 32 decreases, and the siphon inlet 33 and the suction cylinder shape portion 32 have a shape. The resistance when passing through the portion 32 decreases and the flow velocity increases. The flow of the cleaning liquid with increased momentum pushes the air of the suction cylinder shape portion 32 and the upper curved communication portion 34 toward the discharge cylinder shape portion 29, and the continuous liquid outflow operation based on the siphon principle (hereinafter referred to as siphon operation). ) Is started.

The siphon operation is continued even after the water supply from the water injection device 9 is stopped, and the cleaning liquid of the liquid detergent charging unit 21 is sucked up and supplied to the washing / dehydrating tank 6. When the water level of the liquid detergent charging section 21 falls below the siphon inlet 33, air enters from the siphon inlet 33 and the siphon operation ends.

As shown in FIGS. 8 and 9, the water injected from the liquid detergent water injection port 28b has the position 35a (arrow a) where the water on the front side of the siphon structure of the liquid detergent charging section 21 falls and the siphon structure. The water lands on both of the positions 35b (arrow b) where the water on the rear side of the back side of the water falls. The landed water collides with the cleaning liquid collected in the liquid detergent charging section 21 to generate air bubbles. When air bubbles invade the siphon structure, an air layer is formed in the upper part inside the siphon structure, and the siphon operation may be interrupted even during water supply.

The air bubbles generated on the front side of the siphon structure of the liquid detergent charging section 21 move upward along the side walls on the front side and the side surface side of the cap 23 (arrow c).

On the other hand, on the back side of the siphon structure of the liquid detergent charging unit 21, a siphon inlet 33 is provided between the side wall of the cap 23 and the inner bottom surface of the liquid detergent charging unit 21, and air bubbles are discharged from the siphon inlet 33. There is a risk of intrusion. In the present disclosure, since the wall 31 is formed so as to surround the periphery of the back surface side of the recess 30, the bubbles are configured to move upward along the semicircular portion 31a of the wall 31 (arrow d). ing. The cleaning liquid from which air bubbles have been removed passes through the straight portion 31b of the wall 31, flows down into the recesses 30 from both sides, and is sucked into the siphon structure. As a result, air bubbles generated on the back surface side of the siphon structure of the liquid detergent charging unit 21 are suppressed from entering the siphon inlet 33, and the siphon operation is interrupted by the invasion of air bubbles during water supply from the water injection device 9. Can be suppressed.

Further, since the semicircular portion 31a is erected on the wall 31 in a substantially arc shape having a center of curvature, it is less likely to collide with water and generate bubbles as compared with the case of a linearly formed wall. It has a structure.

[Action, etc.]
The washing machine in the present disclosure includes a main body 1, an outer tub 14 that is vibration-proof supported in the main body 1, a washing / dehydrating tub 6 that is rotatably supported in the outer tub 14 and stores laundry, and a substantially box shape. The detergent case 5 is provided with a detergent case 5 for supplying the liquid agent charged into the liquid agent case 14 into the outer tank 14 or the washing / dehydrating tank 6, and a water injection device 9 for injecting water into the liquid agent case 5. The inside of the liquid detergent input portion 21 which is a part of the detergent case 5 is composed of a pipeline portion 26 and a cap 23, and is substantially reversed including a suction cylinder shape portion 32, an upper curved communication portion 34, and a discharge cylinder shape portion 29. It is formed in a U shape and has a discharge path for discharging the internal liquid to the outside by the siphon principle. The position where the water of the water injection device 9 falls, the walls 31 formed above and below, and the flow of the discharge path. A wall 31 extending vertically is formed between the siphon inlet 33, which is an inlet.

As a result, it is possible to prevent air bubbles generated when water falls from entering the discharge path from the siphon inlet 33.

Therefore, it is possible to prevent the siphon phenomenon from being interrupted by the intrusion of air bubbles and the liquid from the liquid detergent charging unit 21 not being completely discharged, and the liquid in the detergent case 5 can be reliably charged into the washing / dehydrating tank 6.

As in the present embodiment, the wall 31 may be a semicircular portion 31a formed in a substantially arc shape having a center of curvature on the siphon structure side.

As a result, it is possible to keep the generated bubbles away from the siphon structure and prevent the dropped water from colliding with the wall to generate bubbles.

As in the present embodiment, the siphon inlet 33 is provided on the side where the water of the liquid detergent water injection port 28b falls, and the wall 31 is the position where the water of the liquid detergent water injection port 28b falls and the siphon. It may be arranged between the inlet 33 and the inlet 33.

Thereby, the invasion of air bubbles can be suppressed on the side where the siphon inlet 33 side of the siphon structure is arranged.

Therefore, since the wall 31 can be provided at a position where air bubbles are effectively suppressed from the siphon inflow port 33, the liquid in the detergent case 5 can be surely put into the washing / dehydrating tank 6.

(Other embodiments)
As described above, the first embodiment has been described as an example of the technique disclosed in the present application. However, the techniques in this disclosure are not limited to this.

Therefore, other embodiments will be exemplified below.

In the first embodiment, a vertical washing machine has been described as an example of the washing machine. The washing machine is not limited to the vertical washing machine as long as it has a siphon structure and a liquid is charged. The washing machine may be a drum type washing machine or a two-tank type washing machine.

In the first embodiment, as an example of the wall, the wall 31 formed in a semicircular shape has been described. The wall is not limited to a semicircular shape as long as it is formed between the position where the water of the water injection device falls and the discharge path. The wall may be substantially rectangular or curved. Further, in the first embodiment, as an example of the wall, the wall 31 provided in the liquid detergent charging section 21 has been described. Since the wall suppresses the intrusion of air bubbles into the discharge path to be discharged to the outside by the principle of siphon, the wall may be provided in the softener charging portion.

The present disclosure is applicable to a device for charging a liquid by a siphon structure. Specifically, the present disclosure is applicable to a vertical washing machine, a drum type washing machine, a two-tank type washing machine, a beverage dispenser, and the like.

1 Main body 2 Top cover 3 Lid 4 Operation display 5 Detergent case (liquid agent case)
6 Washing and dehydration tank 7 Clothes inlet 8 Agent inlet device 9 Water injection device 10 Water injection flow part 11 Water flow part 11a Water flow part discharge port 12 Water injection path part 13 Water injection lid 14 Outer tank 15 Electromagnetic water supply valve 17 Water injection path part Water inlet 18 Powder detergent inlet 18a Rear outer wall 18b Side outer wall 19 Powder detergent outlet 20 Scale 21 Liquid detergent inlet 22 Softener inlet 22a Rear outer wall 23 Cap 24 Push button 25 Engagement claw 26 Pipeline 27 Running water Route 27a Water flow path for powder detergent 27b Water flow path for liquid detergent 27c Water flow path for softener 28 Water injection port 28a Water injection port for powder detergent 28b Water injection port for liquid detergent 28c Water injection port for softener 29 Discharge tube shape (discharge route)
30 Indentation 31 Wall 31a Semicircular part 31b Straight part 32 Inhalation cylinder shape part (discharge path)
33 Siphon inlet (inlet)
34 Upper curved communication part (discharge path)
35a, 35c Position where the front side water falls 35b Position where the rear side water falls

Claims (3)

The main body, the outer tub that is vibration-proof supported in the main body, the washing / dehydrating tub that is rotatably supported in the outer tub, and the liquid agent that is formed in a substantially box shape and is charged into the outer tub. Alternatively, a liquid agent case to be supplied into the washing / dehydrating tank and a water injection device for injecting water into the liquid agent case are provided.
The inside of the liquid agent case is formed in a substantially inverted U shape, and a discharge path for discharging the internal liquid to the outside is provided according to the siphon principle. A washing machine with a wall extending up and down between it. The wall is formed in a substantially arc shape having a center of curvature on the discharge path side.
The washing machine according to claim 1. The inflow port of the discharge path is provided on the position side where the water of the water injection device falls.
The wall is arranged between the position where the water of the water injection device falls and the inlet.
The washing machine according to claim 1 or 2.

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