KR20070103791A - Drain apparatus for washing machine and washing machine having the same - Google Patents

Abstract

A drain apparatus and a washing machine having thereof is provided to prevent vibration of a drain case from being transited to a washing machine housing and to prevent damage of the drain case by installing a vibration-proof support between the drain case and the washing machine housing for damping vibration of the drain case. A drain apparatus for a washing machine comprises a drain case(40), a drain pump, a washing machine housing(10), a vibration-proof support(80). The drain case has a pump chamber wherein water is flowed into. The drain pump is connected with the pump chamber. The vibration-proof support is installed between the drain case and the washing machine housing to prevent vibration of the drain case from being transited to the washing machine housing. A resonance chamber is formed in the vibration-proof support to reduce transmission of vibration. A plurality of resonance chambers are formed at a center part of the vibration-proof support and a periphery of the center part of the vibration-proof support.

Description

Drain apparatus for washing machine and washing machine having same

1 is a perspective view schematically showing a drum washing machine as an example of a washing machine according to a preferred embodiment of the present invention.

Figure 2 is an exploded perspective view showing the main components of the washing machine drainage device according to a preferred embodiment of the present invention.

Figure 3 is a bottom view showing a dustproof stand of the drainage for the washing machine according to a preferred embodiment of the present invention.

Figure 4 is a cross-sectional view showing a state in which the drain case of the drainage device for a washing machine according to an embodiment of the present invention is coupled to the dustproof support.

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

 10 ... washer housing 20 ... bath

 22 ... Laundry 30,70 ... Internal / external drain hose

 40.Drainage case 41.Inlet pipe

 42 Outlet pipe 44 Combination protrusion

 50 ... Drainage filter 60 ... Drainage pump

 80 ... dust stand 81 ... Joining hole

 84.Supporting protrusions 85 ... Resonance room

The present invention relates to a drainage device for a washing machine and a washing machine having the same, and more particularly, to a drainage device for a washing machine and a washing machine having the same, which are less likely to cause vibration and noise during operation, and have a low risk of damage due to vibration even when used for a long time. .

In general, a washing machine includes a pulsator washing machine that rotates washing water and laundry to be washed with a pulsator rotatably installed on the bottom of the tank, and an agitator protruding from the center of the tank. An agitator washing machine which washes the washing water and the laundry to be washed, and a drum washing machine which rotates the drum containing the laundry to raise and wash the laundry and repeats the washing. In recent years, there is an increasing demand for a drum washing machine having excellent cleaning power, less damage to the laundry and less water usage.

These various kinds of washing machines have a drainage system for discharging the washing water of the laundry room to the outside during the dehydration stroke.

The conventional drainage system includes a drain case equipped with a drain filter for filtering foreign matter such as lint from the laundry and a drain pump for forcibly discharging the wash water, an internal drain hose for guiding the wash water in the laundry room to the drain case. It includes an external drain hose for guiding the wash water of the drain case to the outside of the washing machine, and a drain valve installed in the inner drain hose.

Such a drainage device is disclosed in patent application No. 2002-27826 (filed May 20, 2002), the example of which is filed by the applicant.

The drainage device disclosed in the patent application publication is installed so that the front portion of the drain case is coupled to the installation hole provided in the front of the housing of the washing machine so that the drain filter is exposed to the front of the housing. In addition, a screw hole corresponding to a screw hole provided in the housing is provided at the front portion of the drain case, and the drain case is fixed to the housing by screws.

However, in the conventional drainage device for a washing machine, since the drain case is supported by the washing machine housing, the vibration generated when the drain pump is operated is directly transmitted to the washing machine housing, thereby increasing the operating noise.

In addition, when an external shock is applied to the washing machine housing or the screw is worn, there is a risk that the drain case is damaged due to an impact on the drain case.

The present invention is to solve the above problems, it is possible to reduce the noise generated by the vibration generated during the operation of the drain pump is not easily transmitted to the washing machine housing, it is possible to reduce the risk of damage to the drain case by vibration and external impact It is an object of the present invention to provide a drainage for a washing machine and a washing machine having the same.

Drainage device for a washing machine according to the present invention for achieving the above object includes a drain case having a pump chamber into which the washing water is introduced, and a drain pump coupled to the pump chamber, wherein the drain case and the washing machine housing are Dustproof feet are installed to reduce the vibration generated in the drain case to the washing machine housing.

Here, a resonance chamber for reducing vibration transmission may be provided inside the dustproof base.

In addition, the resonance chamber is preferably provided with a plurality around the central portion of the dustproof base and the central portion.

In addition, one side of the drain case may be provided with a coupling protrusion protruding, and one side of the dustproof base may be provided with a coupling hole to which the coupling protrusion is coupled.

In addition, a plurality of support protrusions are provided on the bottom of the dustproof support to support the dustproof support.

In addition, the dustproof support is preferably made of a rubber material.

On the other hand, the washing machine according to the present invention includes a drainage device for draining the wash water, and the drainage device includes a drain case having a pump chamber into which the wash water flows, a drain pump coupled to the pump chamber, and the drain case; It is provided between the washing machine housing is provided with a dustproof base for reducing the vibration generated in the drain case to the washing machine housing.

Hereinafter, a drainage device for a washing machine and a washing machine having the same according to a preferred embodiment of the present invention will be described with reference to the accompanying drawings.

1 is a perspective view schematically showing a drum washing machine as an example of a washing machine according to a preferred embodiment of the present invention, Figure 2 is an exploded perspective view showing the main portion of the drainage device for a washing machine according to a preferred embodiment of the present invention; 3 is a bottom view showing the dustproof support of the drainage for the washing machine according to the preferred embodiment of the present invention, Figure 4 is a drain case of the drainage for the washing machine according to the preferred embodiment of the present invention coupled to the dustproof support It is sectional drawing which shows.

As shown in Figure 1, the washing machine according to a preferred embodiment of the present invention, the door for opening and closing the washing machine housing 10 forming the appearance, and the laundry inlet 24 provided on the front of the washing machine housing 10 (11), a water tank 20 having a laundry room 22 installed inside the washing machine housing 10 and containing laundry, a drum 21 rotatably installed in the water tank 20, And a water supply device 12 for supplying the wash water to the laundry room 22, and a drainage device 13 for draining the laundry water of the laundry room 22.

The front of the washing machine housing 10 is provided with a detergent supply device 14 connected to the water supply device 12 for supplying detergents and finishes, and a control panel 15 for the user operation.

1 and 2, the drainage device 13 includes an internal drainage hose 30 connected to the water tank 20, a drainage case 40 having a filter chamber and a pump chamber, and a drainage installed in the filter chamber. A filter 50, a drain pump 60 installed in the pump room, an external drain hose 70 for guiding the washing water introduced into the drain case 40 to the outside of the washing machine housing 10, and a drain case ( And a dustproof support 80 for supporting 40.

The internal drainage hose 30 is for discharging the washing water of the laundry room 22 formed in the water tank 20 to the outside of the laundry room 22, and one end of the water drain hose is installed at one lower side of the water tank 20. It is connected to the valve 35 and the other end is connected to the inlet pipe 41 provided on one side of the drain case (40). The drain valve 35 is installed in a through hole (not shown) provided at one lower side of the water tank 20 to control the drainage of the wash water through the through hole.

The drain case 40 is installed at a lower side of the inside of the washing machine housing 10 such that the drain filter 50 coupled thereto is exposed to the outside through an installation hole provided at one side of the front side of the washing machine housing 10. The inside of the drain case 40 is provided with a filter chamber in which the drain filter 50 is installed and a pump chamber in which the drain pump is installed, and an inlet pipe 41 connected to the inner drain hose 30 on the outside of the drain case 40. And, the outlet pipe 42 is connected to the external drain hose 70, and the intermediate connection pipe 43 is connected to the intermediate connection hose 90 is provided. The intermediate connection hose 90 is connected to one side of the diaphragm 23, one end of which is installed around the laundry inlet 24, and drains the air introduced together with the wash water through the inlet pipe 41. It serves to discharge to the outside.

Washing water flowing into the inlet pipe 41 is discharged to the outside of the drain case 40 through the outlet pipe 42 through the filter chamber and the pump chamber by the operation of the drain pump 60, the drain case with the wash water Air introduced into the interior of the 40 is discharged to the outside of the drain case 40 through the intermediate connecting pipe (43). In addition, the washing water overflowing from the laundry room 22 toward the laundry inlet 24 flows along the inner circumferential surface of the diaphragm 23 and passes through a through hole (not shown) provided at one side of the inner circumferential surface of the diaphragm 23. After flowing into the intermediate connecting hose 90 is introduced into the drain case 40 along the intermediate connecting pipe (43).

The lower side of the drain case 40 is provided with a coupling protrusion 44 protruding. Coupling protrusion 44 is a portion inserted into the coupling hole 81 of the dustproof base 80 to be described later, and includes a neck portion 45, the head portion 46 is coupled to the end of the neck portion 45. The width of the head 46 is greater than the width of the neck 45.

The drain filter 50 is detachably installed in the filter chamber of the drain case 40 and filters foreign substances such as lint included in the wash water flowing into the drain case 40 through the inlet pipe 41. Serve The drain filter 50 is installed so that its outer portion is exposed to one side of the front side of the washing machine housing 10 so that the user can be separated from the outside of the washing machine housing 10. The detailed structure or function of the drain filter 50 is the same as that disclosed in Patent Application No. 2002-27826 (filed on May 20, 2002) filed by the present applicant, and a detailed description thereof will be omitted.

The drain pump 60 is for forcibly discharging the washing water introduced into the drain case 40 to the outside of the washing machine housing 10, and an impeller (not shown) installed in the pump chamber of the drain case 40. And a pump motor 61 for rotating the impeller.

Since a more specific operation of the drain pump 60 is also disclosed in Patent Application No. 2002-27826 (filed May 20, 2002), a detailed description thereof will be omitted.

One end of the external drain hose 70 is connected to the outlet pipe 42 of the drain case 40 and extends to the outside of the washing machine housing 10. When the drain pump 60 is operated, the washing water introduced into the drain case 40 is discharged from the pump room through the outlet pipe 42 and discharged to the outside of the washing machine housing 10 along the external drain hose 70.

The dustproof stand 80 supports the lower portion of the drain case 40 to absorb the vibration generated from the drain case 40 when the drain pump 60 is operated. The dustproof base 80 is formed in a square pillar shape whose width increases from the top to the bottom direction. The upper surface of the dustproof support 80 is formed of a curved surface having a curvature substantially the same as the curvature of the drain case 40 so that the rounded lower portion of the drain case 40 can be smoothly adhered thereto, A coupling hole 81 into which the coupling protrusion 44 of the case 40 is inserted is provided.

The coupling hole 81 includes a bottleneck 82 to which the neck 45 of the coupling protrusion 44 is coupled, and an extension portion 83 to which the head 46 of the coupling protrusion 44 is coupled. The width of the bottleneck 82 is substantially equal to or slightly greater than the width of the neck 45, and the width of the extension 83 is substantially equal to or slightly greater than the width of the head 46.

At each of the four corners of the bottom of the dustproof base 80, a support protrusion 84 is provided. The support protrusion 84 is a portion in which the dustproof support 80 directly contacts the washing machine housing 10 so as to reduce the contact area between the dustproof support 80 and the washing machine housing 10 so as to generate vibrations generated in the drainage case 40. This prevents the transfer to the washing machine housing 10 smoothly.

As shown in FIG. 3 and FIG. 4, a plurality of resonance chambers 85 are provided in the dustproof stand 80. These resonance chambers 85 are provided at the center connected to the coupling hole 81, one in each of the four corners of the dustproof support 80, respectively, and serves to suppress vibration transmission.

Dustproof base 80 is preferably made of a rubber material with good vibration absorption. However, in the present invention, the dust chamber 80 is not limited to rubber, but may be made of various materials having a vibration absorbing effect such as soft resin in addition to rubber.

In addition, the shape of the anti-vibration support 80 is also not limited to the square pillar shape, it may be made of a cylinder, or other polygonal pillar shape other than square.

In addition, since the remaining configuration constituting the washing machine is the same as usual, the detailed description of the remaining configuration and the operation of the washing machine will be omitted.

Hereinafter, with reference to the accompanying drawings will be described the installation and operation of the washing machine drainage device 13 according to a preferred embodiment of the present invention.

As shown in Figure 1, the drain case 40 of the drainage device 13 according to a preferred embodiment of the present invention is installed in the drain filter 50 is provided in the front of the washing machine housing 10 It is installed inside the washing machine housing 10 so as to be exposed to the outside through.

Here, the drain case 40 is inserted into the coupling hole (81 (see FIG. 2)) of the dustproof base 80 is provided with a coupling protrusion 44 (see FIG. 2) provided therein, and is supported by the dustproof base 80, An inner drain hose 30, an outer drain hose 70, and an intermediate connection hose 90 are respectively connected to the inlet pipe 41, the outlet pipe 42, and the intermediate connecting pipe 43 provided at the outside thereof.

And, although not shown, a coupling member such as a screw is coupled to one side of the drain case 40 to fix the drain case 40 to the washing machine housing 10.

The drainage device 13 installed in the washing machine housing 10 is operated during the dehydration stroke, and the following operation is performed.

First, when a dehydration stroke is started after a washing stroke or a rinsing stroke, the drain valve 35 is opened while the drain pump 60 is operated. At this time, the washing water in the laundry room 22 moves to the drain case 40 along the inner drain hose 30. Washing water moving along the inner drain hose 30 is introduced into the drain case 40 through the inlet pipe 41 and passes through the filter chamber, which is included in the wash water when the wash water passes through the filter chamber. Foreign matter such as lint is filtered by the drain filter 50.

The laundry water from which the foreign matters are removed is introduced into the pump chamber, and the washing water introduced into the pump chamber is discharged to the outside of the drain case 40 through the outlet pipe 42 by the operation of the drain pump 60 so that the external drain hose ( 70 is discharged to the outside of the washing machine housing (10).

On the other hand, the air introduced into the drain case 40 together with the wash water through the inner drain hose 30 is discharged to the outside of the drain case 40 through the intermediate connecting pipe 43 and the intermediate connecting hose (90). It does not flow into the pump room.

As such, while the drain pump 60 is operated and the washing water in the laundry room 22 is discharged to the outside of the washing machine housing 10 through the external drain hose 70, the dustproof base 80 supporting the drain case 40 is provided. Absorbs the vibration generated in the drain case 40, the vibration generated in the drain case 40 by the action of the dust-proof stand 80 is not easily transmitted to the washing machine housing (10). Therefore, the noise caused by the operation of the drain pump 60 is reduced, and the shock transmitted to the drain case 40 is cut off, thereby reducing the risk of damage to the drain case 40.

On the other hand, while the washing machine according to the present invention has been described by taking a drum washing machine as an example, the present invention may be applied to not only a drum washing machine but also a pulsator washing machine or an agitator washing machine.

According to the present invention described above, by preventing the vibration support base for supporting the drain case absorbs the vibration generated in the drain case is not easily transmitted to the washing machine housing, the noise generated by the operation of the drain pump is reduced.

In addition, according to the present invention, while preventing the dust support from sagging the drain case and at the same time blocking the shock generated from the outside to the drain case, it is possible to reduce the risk of damage to the drain case due to external factors.

The present invention described above is not limited to the configuration and operation as illustrated and described. That is, the present invention is capable of various changes and modifications within the spirit and scope of the appended claims.

Claims (7)

In the drainage for the washing machine having a drainage case having a pump chamber into which the wash water flows, and a drain pump coupled to the pump chamber, Washing machine drainage device, characterized in that between the drain case and the washing machine housing is installed a dustproof support for reducing the vibration generated in the drain case to the washing machine housing. The method of claim 1, Washing apparatus for drainage, characterized in that the resonance chamber for reducing the vibration transmission is provided in the dustproof base. The method of claim 2, The resonance chamber is a drainage device for a washing machine, characterized in that a plurality is provided around the central portion and the central portion of the dustproof base. The method of claim 2, A coupling protrusion protrudes on one side of the drain case, and a coupling hole coupled to the coupling protrusion on one side of the dustproof base is provided. The method of claim 2, A drainage device for a washing machine, characterized in that the bottom of the dustproof support is provided with a plurality of support protrusions to support the dustproof support. The method of claim 2, The dustproof support is a drainage for a washing machine, characterized in that made of a rubber material. A washing machine having a drainage device for draining wash water, The drainage device includes a drain case having a pump chamber into which washing water is introduced, a drain pump coupled to the pump chamber, and a vibration between the drain case and the washing machine housing to transfer vibration generated from the drain case to the washing machine housing. Washing machine comprising a dustproof stand for reducing the thing.

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