KR100220745B1 - The filter apparatus of a washing machine - Google Patents

Abstract

The present invention relates to a foreign material filtering device of a washing machine, comprising a front and rear grill plate provided with a front and rear net to filter foreign materials contained in the wash water passing through the flow path by forming a flow path inside the front and rear surfaces. The foreign matter trapping means formed on the inside of the front and rear grill plate to be collected on the inside of the grill plate and to prevent foreign matter from being caught in the portion where the front and rear grills are coupled to each other, and the inner and rear grill plates are raised. And a plurality of reinforcing means formed on the inside of the front and rear grill plates to prevent deformation of the front and rear grill plates due to the pressure of the washing water. And forming a reinforcement means to effectively prevent foreign substances from leaking to the coupling part of the pocket-type filter and leaking to the outside. It is possible to prevent the filter is modified.

Description

Foreign body filtering device of washing machine

The present invention relates to a foreign matter trapping device of a washing machine to improve the structure of the foreign matter trapping device of the washing machine to increase the foreign matter collecting ability and at the same time to improve the ability to collect fine foreign matter.

In the conventional automatic washing machine, as shown in FIG. 1, there is a main body 10 forming an appearance, and an outer tank 20 for storing wash water is disposed inside the main body 10, and the outer tank 20 On the outer bottom surface of the) is provided a motor 30 that is driven by applying power, and on the outer bottom of the outer tub 20 receives a driving force from the motor 30 via the belt 41, the pulsing to be described later A power transmission device 40 for driving data or a dehydration tank is mounted, and the dehydration tank 50 is rotated in the outer tank 20 so as to dehydrate laundry by centrifugal force due to the rotation of the power transmission device 40. The dehydration tank 50 is disposed on the upper side of the dehydration tank 50 so that the balancer 60 is maintained horizontally so that the laundry is rotated even when the laundry is dehydrated to one side. In the dehydration tank (50) The pulsator 70 is rotatably disposed to form a flow of water in the dissolved wash water, and is stored in the outer tank 20 by a water level sensor not shown in the upper part of the main body 10. Water supply means 80 for detecting the water level of the wash water and supplying the wash water according to the laundry into the outer tub 20 is disposed, and the lower one side of the outer tub 20 is contaminated laundry generated during washing and rinsing. Drainage means 90 for discharging water is disposed.

Inside the dehydration tank 50 is provided with a guide tube 100 for guiding the water flow upwards as the pulsator 70 rotates, and the balancer 60 coupled to the end of the guide rod 100. The discharge port 61 is formed at the inner side of the discharge pipe to discharge the upward flow guided through the guide tube 100 to the inner center of the dewatering tank 50 to form a waterfall flow. Filter bag 110 for filtering foreign matters of the laundry flowing by the water flow is disposed.

The automatic washing machine configured as described above puts laundry and detergent in the dehydration tank 50, selects the operating conditions by an operation unit (not shown), and operates the washing machine. The washing water is supplied into the outer tank 20 through the water supply means 80. When the washing water supplied into the outer tub 20 reaches an amount necessary to wash the laundry introduced into the dehydration tank 50, the motor 30 starts to rotate, and the rotational force of the motor 30 is the belt 41. It is transmitted to the power transmission device 40 through, the power transmission device 40 receives the rotational force of the motor 30 to decelerate, and then rotates the pulsator 70 to be stored in the dehydration tank 50 to flow water It forms and washes.

That is, as the pulsator 70 rotates, the washing water introduced into the dehydration tank 50 rises at the edge of the pulsator 70 and forms a water and sewage stream descending to the center of the pulsator 70 to perform washing. Do it. At this time, the water flow of the bottom portion of the dehydration tank 50 is pushed toward the inner circumferential surface of the dehydration tank 50 by the rotational force of the pulsator 70 and ascending along the guide tube 100, the balancer 60 of the The washing effect is increased by pouring down into the inner central portion of the dehydration tank 50 through the discharge port 61 and the filter bag 110 formed at one side, and the laundry is filtered by the filter bag 110.

When washing is completed in this way, the contaminated washing water stored in the outer tank 20 and the dehydration tank 50 is turned on (opened) while the solenoid valve (not shown) disposed in the lower part of the outer tank 20 is drained. Through 90).

Then, when the drainage of the wash water is completed, the solenoid valve (not shown) is turned off and the rinsing wash water is supplied into the outer tub 20 through the water supply means 80.

Next, when the water level required for rinsing the laundry is reached, the pulsator 70 rotates clockwise and counterclockwise according to the driving force of the power transmission device 40 which has received the driving force of the motor 30 as described above. Rinse off any dirt and detergent from your laundry.

When the final rinsing stroke is repeated by repeating such a rinsing cycle a plurality of times, the rinsing completed wash water stored in the outer tank 20 and the dehydration tank 50 is discharged to the outside through the drainage means 90. At this time, the dehydration tank 50 rotates in one direction according to the driving force of the power transmission device 40 to dehydrate the wash water and the wash water permeating the laundry in the dehydration tank 50.

However, the conventional washing machine configured as described above has a problem that the baggage purifying filter bag 110 is disposed at the upper side of the dehydration tank 50 so that the foreign matter collection performance is reduced when washing at a low water level or less. There was a problem that the harvesting capacity is poor.

Accordingly, it is an object of the present invention to improve the structure of the foreign matter trapping means to improve the foreign matter collecting performance and at the same time to provide a foreign matter trapping device of the washing machine to improve the ability to collect fine foreign matter.

1 is an overall longitudinal cross-sectional view schematically showing the configuration of a conventional washing machine.

2 is a partial cross-sectional view showing a state in which the foreign matter trapping means of the washing machine according to an embodiment of the present invention.

Figure 3 is an exploded perspective view showing the separated foreign matter means of the washing machine according to an embodiment of the present invention.

Figure 4 is an internal perspective view showing the inside of the pocket filter of the foreign matter filter means for washing machine according to an embodiment of the present invention.

5 is a cross-sectional view showing a pocket filter of the foreign matter cleaning means for washing according to an embodiment of the present invention.

* Explanation of symbols for main parts of the drawings

50: dehydration tank 200: foreign body filtering means

300: outer case 310: outflow hole

320: guide portion 330: flow path reduction portion

400: pocket filter 410: front network

420: front grill plate 426: side of the front grill plate

440: rear grill plate 446: side of the rear grill plate

800: foreign matter trapping means 810: rib

820: engaging jaw 900: reinforcing means

910: round boss

The foreign material filtering device of the washing machine according to the present invention made to achieve the above object is to form a flow path inside the front and rear grill plate and the front and rear grille to filter foreign matter contained in the wash water passing through the flow path; And foreign matter trapping means formed on the inner side of the front and rear grill plates so as to be collected inside the front and rear grill plates and to prevent foreign matter from being caught in a portion where the front and rear grill plates are coupled, and the front and rear grill plates. It characterized in that it consists of a plurality of reinforcing means formed on the inside of the front and rear grill plate to prevent the front and rear grill plate from causing deformation by the pressure of the washing water rising through the inside of the.

Hereinafter, a preferred embodiment of the present invention will be described in more detail with reference to FIGS. 2 to 5.

As shown in FIG. 2 to FIG. 5, a pulsator 70 is disposed at the bottom of the dewatering tank 50 so as to form a stream of water while washing in a clockwise or counterclockwise direction to wash. On one side of the inner circumferential surface of the dehydration tank 50, a foreign matter filtering means 200 for filtering laundry residues generated during washing is disposed.

The foreign material catching means 200 is composed of an outer case 300 for forming a flow path, and a pocket-type filter 400 detachably disposed inside the outer case 300 to collect the foreign matter, the pocket filter 400 ) Is a front grill plate 420 formed with a plurality of outlets 421 so that the washing water is discharged to the central side of the dehydration tank 50 and at the same time a plurality of front screens 410 for filtering foreign matter is disposed, and the front The rear grill plate is coupled to one side of the grill plate 420 to drain the washing water to the inner peripheral surface side of the dehydration tank 50 and at the same time a plurality of outlets 441 are formed so that a plurality of rear mesh 430 to filter foreign matter 440 and the check valve 450 disposed below the rear grill plate 440 to prevent foreign substances collected between the front grill plate 420 and the rear grill plate 440 from being discharged to the outside. Consists of, the front grill plate 420 and the rear grill plate 440 is One side is rotatably coupled by a hinge means 460 to facilitate cleaning, the hinge means 460 is a hinge groove 461 formed on the inner surface side of the front grill plate 420, and the hinge groove ( It consists of a hinge protrusion 462 protruding on the outer surface side of the rear grill plate 440 so as to be rotatably inserted into the 461, the upper case of the front filter plate 420, the pocket filter 400, the outer case 300 The handle portion is formed in a concave shape so as to easily separate or couple from each other.

On the surface of the outer case 300, a plurality of outflow holes 310 are formed so that the wash water passing through the front net 410 of the front grill plate 420 to the central side of the dehydration tank 50, The inner part of the outer case 300 is formed with a guide part 320 which guides the flow of the washing water which is raised by the rotational force of the pulsator 70 toward the rear grill plate 440. On the other side where the 320 is formed, the flow path reduction part 330 is formed to be inclined to increase the flow velocity of the portion that is coupled to the pocket filter 400.

Inner parts 426 and 446 of the front and rear grill plates 420 and 440 are provided with foreign matter pinching prevention means 800 to prevent foreign substances collected inside the front and rear grill plates 420 and 440 from being caught. Reinforcing means (900) inside the rear grill plates (420,440) to prevent deformation of the front and rear grill plates (420,440) by pressurized washing water rising through the front and rear grill plates (420,440). Is formed.

The foreign matter prevention means 800 includes a plurality of ribs 810 protruding from the inner surfaces of both sides 426 and 446 of the front grill plate 420 at a predetermined distance d, and the front grill plate on the ribs 810. The rear grille is inserted into the upper surface of the rib 810 after the side portion 446 of the rear grill plate 440 is inserted into the inner surface of the side portion 426 of the 420 and the gap created by the rib 810. It consists of a locking step 820 formed on one side of the side portion 446 of the plate 440, the reinforcing means 900 is symmetrical with each other at a predetermined interval on the inner center side of the front and rear grill plate (420,440) Consists of a plurality of circular boss 910 formed to be.

Next, a description will be given of the operation and effects on the foreign matter filtering device of the washing machine according to the present invention configured as described above.

During the washing stroke, as the pulsator 70 is rotated by a power transmission device (not shown), the water flow at the bottom of the dewatering tank 50 is pushed toward the inner circumferential surface of the dewatering tank 50 and along the outer case 300. The raised water flow is sprayed toward the rear grill plate 440 by the guide part 320 formed inside the outer case 300, and is circulated upward along the rear grill plate 440, and a part of the front network 410 is provided. And discharged to the outside of the pocket filter 400 through the rear mesh 430, foreign matter collected between the front grill plate 420 and the rear grill plate 440 is pushed up to the pocket filter 400 The collecting state proceeds from the upper side to the lower side, and the washing water is discharged to the inlet side of the pocket filter 400 at the time of drainage after the completion of washing. In this case, the foreign matter is discharged to be blocked by the check valve 450.

After dehydration is completed, the dehydration proceeds, the foreign matter collected in the pocket filter 400 by the centrifugal force is attached to the rear side of the pocket filter 400, the foreign matter attached to the rear side of the pocket filter 400 is the next washing stroke is in progress As a result of the jet pressure of the washing water is separated from the back of the pocket filter 400 is moved to the front, the foreign matter is stacked in sequence, the foreign matter filtering means 200 for filtering the foreign matter as described above is the middle side of the dehydration tank (50) It eliminates the deterioration of foreign matter collection performance even when the laundry is operated at a low water level or lower, and also increases the ability to collect fine foreign matters, thereby reducing the fine foreign matters remaining after washing.

Meanwhile, the front and rear grill plates 420 and 440 are deformed by the pressurized washing water raised to the inside of the pocket filter 400 as described above. And the foreign matters collected are prevented from leaking to the outside as the coupling portions of the front and rear grill plates 420 and 440 are doublely fastened by the foreign matter trapping means 800.

According to the foreign matter trapping device of the washing machine according to the present invention as described above, the foreign matter trapping means and the reinforcing means is formed in the pocket-type filter to filter the foreign matter to effectively prevent foreign substances get stuck in the coupling portion of the pocket-type filter and At the same time, the pocket filter can be prevented from being deformed by the pressurized washing water.

Claims (3)

A front and rear grill plate having front and rear nets disposed to filter foreign matters contained in the wash water passing through the flow path by forming a flow path therein, and the front and rear grill plates are collected inside the front and rear grill plates. The front and rear grills are formed by the foreign matter trapping prevention means formed inside the front and rear grill plates and the washing water rising through the inside of the front and rear grill plates so as to prevent the rear grills from being caught in the combined parts. The foreign material filtering device of the washing machine, comprising a plurality of reinforcing means formed inside the front and rear grill plates to prevent the plate from causing deformation. The rear grill according to claim 1, wherein the foreign matter trapping prevention means includes a plurality of ribs protruding at predetermined intervals from inner surfaces of both sides of the front grill plate, and a gap formed by the inner surface of the front grill plate and the ribs. The foreign matter trapping device of the washing machine, characterized in that made of a locking jaw formed on one side of the rear side grill plate to be caught on the upper surface of the rib after the side of the plate is inserted. The foreign material filtering device of claim 1, wherein the reinforcement means comprises a plurality of circular bosses symmetrically formed at a predetermined interval on an inner central side of the front and rear grill plates.

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