KR20070027932A - Detergent supply appratus of clothing washing machine - Google Patents

Abstract

A detergent supply apparatus of a washing machine is provided to prevent locking phenomenon of the mixed liquid from being generated and improve the discharging efficiency in the liquid agent receiving space through the path. A detergent supply apparatus of a washing machine is composed of a siphon pipe formed at a liquid agent space with a predetermined height; a siphon cap(33) formed with curved parts(33b) at a lower end(33a) to cover the siphon pipe; and a path formed between the curved part and the floor surface of the liquid agent space to pass through the inner and outer sides of the siphon cap. The curved parts are separated to at least one. The height difference of 2~7mm is formed between the upper-most end of the curved part and the lower-most end of the siphon cap.

Description

Detergent Supply Appratus of Clothing Washing Machine

      1 is an exploded perspective view showing the structure of a detergent box and a siphon cap in a conventional detergent supply device.

      Figure 2 is an internal perspective view showing the internal structure of the drum washing machine applied detergent supply apparatus according to the present invention.

      Figure 3 is a perspective view showing the structure of the siphon cap in the detergent supply apparatus according to an embodiment of the present invention.

      Figure 4 is a side cross-sectional view showing the internal structure of the detergent supply device is installed siphon cap shown in FIG.

      Figure 5 is a side cross-sectional view showing the internal structure of the detergent supply apparatus according to another embodiment of the present invention.

      * Description of symbols on the main parts of the drawings *

     20: housing, 30: detergent supply device,

     33: siphon cap, 34: siphon tube,

     33b: bend,

 The present invention relates to a detergent supply apparatus for a washing machine, and more particularly, in the discharge of the rinsing agent and the bleaching agent by the siphon action, even when a small amount of the rinsing agent or the bleaching agent is added after the siphon action, the siphon action is continuously generated. The detergent supply apparatus of the washing machine is prevented.

Generally, a washing machine is divided into a drum washing machine including a drum rotating about a horizontal axis, and a pulsator washing machine in which a washing tank is installed around a vertical axis. The washing machine is a device that supplies washing water and detergent to perform washing in common. Is needed.

Therefore, the washing machine is provided with a detergent supply device in the flow path formed in the water supply valve and the laundry irradiation connected to the water source, the detergent supply device is provided with a detergent box for receiving the detergent.

The detergent box is divided into a powder detergent space accommodating powder detergent and a liquid detergent space accommodating liquid bleach and rinsing agent. The bleach or rinse agent is configured to be introduced into a washing tank by a siphon action using a siphon cap.

1 is a perspective view showing a structure of a siphon in a conventional detergent box and detergent box.

As shown, the detergent box 10 is partitioned into a powder detergent space 11 containing powder detergent and two liquid detergent spaces 12 containing bleach and rinsing agent, respectively.

The upper side of the detergent box 10 is provided with a guide plate (not shown) formed with a guide flow path for guiding the washing water to inject the washing water according to each receiving space, the powder detergent space in the washing operation and rinsing operation state ( 11) or wash water is injected into the liquid space (12). In addition, the wash water introduced into the detergent box 10 is configured to be introduced into the washing tank (not shown) through a discharge port formed at the rear or lower portion of the detergent box housing (not shown) for receiving the detergent box 10.

In the case of the liquid product space 12, a siphon cap 13 having a predetermined height is covered with a siphon tube 14 communicating under the detergent box 10, and the detergent box 10 is siphoned. A stepped recess is formed in a part in contact with the lower part of the cap 13.

Therefore, when the wash water is supplied from the guide plate in a state where a predetermined bleach or rinse agent is contained in the liquid space 12, the water level in the liquid space 12 is gradually increased, but when the water level becomes higher than the height of the siphon tube 14, Through the siphon tube 14, the wash water along with the bleach or rinse agent is continuously discharged to the discharge port.

This siphon action is stopped by the supply of the wash water gradually lowers the water level to reach the bottom of the siphon cap 13 is stopped by the air flowing into the siphon cap 13 instead of the wash water, accordingly in the siphon cap 13 Residual wash water is discharged to a certain amount into the liquid space 12, the siphon action occurs again when the wash water is supplied by the height of the siphon tube (14).

However, due to the residual wash water in the siphon cap 13, a certain amount of residual water is present in the detergent box 10, but when used for a long time without cleaning the detergent box 10, the scale between the siphon cap 13 and stepping When the siphon action is completed by the siphon cap 13, the residual washing water in the siphon cap 13 does not flow toward the detergent box 10 and remains as it is.

Therefore, when the liquid such as bleach or rinsing agent is supplied again in this state, even if the water level does not reach the height of the siphon tube, it siphons again and is immediately discharged to the discharge port, whereby erroneous injection of bleach or rinsing agent occurs. There was a problem.

In order to solve this problem, it is an object of the present invention to provide a detergent supply device that does not occur erroneous phenomenon of the liquid agent such as bleach or rinsing agent.

In the detergent input device according to the present invention to solve the above problems, in the detergent supply apparatus of the washing machine comprising a detergent box formed with a liquid detergent space for accommodating liquid detergent,

The liquid space is provided with a siphon tube having a predetermined height and a siphon cap which is covered with the siphon tube and has a bent portion formed at a lower end thereof, and penetrates the inside and the outside of the siphon cap between the bent portion and the bottom surface of the liquid donor. A flow path is formed.

In addition, the bent portion is characterized in that configured to be spaced apart at least one or more.

In addition, a height difference of 2 to 7 mm is formed between an uppermost end of the bent portion and a lower end of the siphon cap.

In addition, the bottom surface is characterized in that the stepped recess is formed in the portion adjacent to the outer peripheral edge of the siphon cap.

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention will be described in detail.

The present invention can be applied to both a drum washing machine and a pulsator type washing machine, but for convenience of description, only the detergent supply device applied to the drum washing machine will be described.

2 and 3, the drum washing machine is provided with a housing 20 forming an exterior, a tub 21 installed horizontally in the housing 20, and rotatably installed in the tub 21. A drum 22 and a drive motor 24 for providing a rotational force to the drum 22 is included.

The front of the housing 20 and the drum 22 are opened to discharge the laundry, and the door 23 is hinged to the open surface of the housing 20.

A water supply valve 28 is installed at the rear of the housing 20 to receive washing water from the outside of the housing 20, a detergent supply device 30 is installed at the front of the housing 20, and a water supply valve 28 is provided. ) And the water supply hose 27 is connected between the detergent supply device (30).

Therefore, the water introduced through the water supply valve 28 is supplied to the detergent supply device 30 along the water supply hose 27, the washing water mixed with the detergent in the detergent supply device 30 is supplied to the tub 21. Mouth.

In addition, the bottom plate of the housing 20 is provided with a drain pump 25 and a drain pipe for discharging the washing water used in the washing process, the rinsing stroke, and the dehydration stroke to the outside of the housing 20.

3 and 4, the detergent supply apparatus 30 according to the present invention is a detergent box housing 31 and a plurality of water supply hose 27 is coupled to the rear to allow the wash water to pass through, and the detergent box housing A detergent box 32 is slidably coupled through the front surface of the 31.

The lower portion of the detergent box housing 31 is coupled to the connecting hose 29 for guiding the wash water mixed with detergent or rinsing agent into the tub 21 while passing through the detergent box 32, the housing ( A flow path and a watering hole for guiding the washing water introduced into the detergent housing 31 through the water supply hoses 27 can be sprayed in the respective receiving spaces 32a and 32b in the detergent container 32 in the upper portion of the tank 20. The guide plate 36 is provided.

Meanwhile, the detergent box 32 is divided into a powder detergent space 32a containing a powder detergent and a liquid detergent space 32b containing a liquid detergent such as a bleach or a rinse agent. It will be omitted.

In the illustrated embodiment, the liquid space 32b is divided into two so as to contain the bleach and the rinsing agent at the same time. In each receiving space, the liquid is separated into the lower portion of the detergent box 32 together with the washing water by the siphon action. A siphon tube 34 having a predetermined height is provided to be discharged.

The siphon tube 34 has an upper end communicating with a lower portion of the detergent box 32, a cap siphon cap 33 is covered over the top and bottom, and the lower end of the siphon cap 33 has a bottom surface of the liquid space 32b. That is, the upper surface of the siphon tube 34 and the upper end of the siphon cap 33 are spaced at a predetermined interval while contacting the lower surface of the detergent box 32.

The lower end of the siphon cap 33 is bent upward from a portion in contact with the bottom surface of the liquid space 32b to form a bent portion 33b having a constant height difference. Accordingly, the lower end 33a of the siphon cap and the A flow path penetrating the inside and the outside of the siphon cap 33 is formed between the bottom surfaces.

As the bent portion 33b is formed, there is a height difference between the top end of the bent portion 33b and the bottom end of the siphon cap 33 which is in contact with the bottom surface. When the height difference is increased, the cross-sectional area of the flow path is increased. However, since the siphon action is stopped as soon as the increased height, a large amount of water remains in the liquid space 32b. On the contrary, when the height difference is small, the flow path is likely to be blocked by scale, etc. It cannot be solved. Therefore, the height difference is preferably 2 mm or more to prevent the flow path from being closed by the generation of scale, and not to exceed 7 mm to minimize the residual water.

In addition, the bottom surface is formed with a stepped concave 35 in the portion adjacent to the outer peripheral edge of the siphon cap 33, to minimize the residual water after the siphon action.

Next, look at the operation and effect of the detergent supply apparatus according to the present invention having the configuration as described above.

First, the wash water to be used in the washing process or the rinsing process is introduced into the detergent supply device through the water supply valve, and is sprayed into the detergent container through the guide plate.

In the case of providing the liquid phase, since the siphon action occurs when the water level exceeds the height of the siphon tube, the liquid agent to be added in advance should be added so as not to exceed the height of the siphon tube.

If the water level between the liquid donor gradually increases due to the sprinkling action, the water level in the siphon cap is equally increased.When the water level exceeds the top of the siphon tube, the mixed liquid introduced into the siphon cap through the flow path is continuously detergented through the sipher tube. Discharged to the bottom.

Next, when the inlet of the wash water stops while the water supply valve is closed, the level of the detergent box gradually decreases. When the water level reaches the top of the bent portion, air is introduced into the siphon cap. The pressure is at atmospheric pressure, and the mixed liquid in the siphon cap is discharged through the flow path into the liquid receiving space outside the siphon cap.

As described above, the detergent supply apparatus according to the present invention is provided with a bent portion on the bottom surface of the liquid receiving space to be in contact with the siphon cap or the siphon cap to form a flow path.

Therefore, even if the detergent box is not washed for a long time, the pressure in the siphon cap is maintained as it is after the siphon action, and so on, the so-called locking phenomenon in which the mixed liquid remains in the siphon cap does not occur and is discharged into the liquid storage space through the flow path. Therefore, before reaching the critical level at which the siphon function occurs, siphon action occurs again to prevent the phenomenon of misinjecting of the liquid agent.

Claims (4)

In the detergent supply apparatus of the washing machine comprising a detergent box having a liquid detergent space for containing a liquid detergent, The liquid space is provided with a siphon tube having a predetermined height and a siphon cap which is covered with the siphon tube and has a bent portion formed at a lower end thereof, and penetrates the inside and the outside of the siphon cap between the bent portion and the bottom surface of the liquid donor. Detergent supply device for a washing machine characterized in that the flow path is formed. According to claim 1, wherein the bent portion detergent supply apparatus of the washing machine, characterized in that configured to be spaced apart at least one or more. The detergent supply apparatus of claim 2, wherein a height difference of 2 to 7 mm is formed between an uppermost end of the curved portion and a lower end of the siphon cap. According to claim 3, The bottom surface of the washing machine detergent supply device characterized in that the stepped concave formed in the portion adjacent to the outer peripheral edge of the siphon cap.

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