KR100230782B1 - Filtering device for dishwasher - Google Patents

Abstract

The present invention relates to a filtration device of a dishwasher, and in the related art, since the inflow path of the pump is the same at the time of washing and draining, it is not possible to discharge the condensation collected inside the filter during washing, so that the user collects the filter after washing and gathers the inside. There was an inconvenience to deal with the dirt. The filtration device of the dishwasher of the present invention includes: a sump containing a wash water for washing dishes, a spiral vortex guide having a radius of curvature from the center to generate a rotating flow in the washing water introduced to the thumb; It is attached to the vortex guide and consists of a plurality of filters that filter the filth of the washing water according to the rotational flow by the vortex guide during the cleaning process. The noise in the flow path can be reduced.

Description

Filter of dish washer

The present invention relates to a filtration device for a dishwasher, and more particularly, to a filtration device for a dishwasher, which is capable of discharging dirt during drainage without storing the dirt during washing and re-spreading the washing water.

In general, the dishwasher, as shown in Figure 1, a sump (3) containing the wash water for washing the dish 11, and a suction flow path (4) for sucking the wash water from the thumb (3) ), A water supply and drainage pump 1 for supplying the washing water to perform the washing process and the draining process, and the washing discharge port connected with the pump 1 to flush the washing water. (9), a washing arm (5) connected to the washing discharge port (9) to supply washing water, a tub (6) serving as a space for washing the dishes (11), and the dish ( 11) and a rack 10 for accommodating the water, and a drain outlet 7 through which the washing water is finished.

The thumb 3 is equipped with a filter 2 for filtering dirt.

In the figure, reference numeral 8 denotes a heater installed to warm the washing water.

Referring to the operation of the conventional dishwasher having the above configuration as follows.

During washing, the washing water collected in the thumb 3 is discharged to the washing discharge port 9 through the filter 2 when the pressure of the pump 1 increases, and is injected into the tub 6 through the washing arm 5, and the tub (6) The dishes 11 stored therein are washed.

At this time, the washing water is heated by the heater 8 installed in the tub 6, and the heated washing water is collected in the thumb 3 again.

At the time of drainage, the washing water which has been completely washed is collected in the thumb 3, and the contaminated washing water is discharged through the filter 2 in the thumb 3 when the pressure of the pump 1 increases as in the case of washing. Drain out of the dishwasher.

Generally, when the pumps for the washing process and the draining process are separated from each other, the waste collected in the filter 2 may be discharged through another flow path when drained.

However, in the conventional dishwasher using the integrated water supply and drainage pump, since the suction flow path 4 to the pump 1 is the same at the time of washing and draining, it is possible to discharge the dirt collected inside the filter 2 at the time of washing out. It becomes impossible.

Therefore, the user is uncomfortable to take out the filter (2) after washing to treat the dirt collected therein.

In addition, the washing water collected in the thumb 3 has a problem that the flow noise occurs because the turbulent flow is increased due to the rapid cross-sectional change in the inflow into the pump (1), the supplement has been required.

Accordingly, the present invention has been made in view of the above problems, to provide a filtration device of the dishwasher to store the dirt when washing to discharge the dirt during drainage without re-spreading the wash. There is a purpose.

Another object of the present invention is to provide a filtration device of a dish washing machine that can reduce the noise in the flow path caused by the rapid cross-sectional change in the inflow into the pump.

1 is a schematic diagram showing the internal configuration of a typical dishwasher,

Figure 2 is a plan view showing the internal configuration of the filtration device of the dish washing machine of the present invention,

3 is a cross-sectional view taken along the line A-A in FIG.

Figure 4 is a plan view showing a vortex guide of the dish washing machine of the present invention.

(Explanation of symbols for the main parts of the drawing)

20; Thumb 30; Vortex Guide

40; filter

In order to achieve the above object, the present invention provides a sump containing a wash water for washing dishes and a spiral having a radius of curvature from the center so as to generate a rotational flow in the wash water introduced into the thumb. The vortex guide of the, and is attached to the vortex guide is provided with a filtration device of the dishwasher, characterized in that consisting of a plurality of filters to filter the dirt of the wash water according to the rotational flow by the vortex guide in the process from the cleaning center.

In particular, the bottom surface of the thumb is characterized in that it is curved so that washing water can flow freely without being disturbed by the filter.

The vortex guide is characterized in that the removable in the thumb.

In addition, the filter is mounted to be inclined at a predetermined angle with respect to the center of curvature of the vortex guide to facilitate filtering of dirt.

Preferably, the filter has different mesh sizes.

Hereinafter, with reference to the accompanying drawings an embodiment of the filtration device of the dish washing machine of the present invention will be described in detail as follows.

The filtration apparatus of the dish washing machine of the present invention, as shown in Figure 2, to generate a rotational flow in the wash water introduced into the thumb 20 in a (sump) 20 containing the washing water for washing the dishes A spiral vortex guide 30 having a radius of curvature from the center is mounted, and a plurality of filters 40 filter the vortic flow guide 30 so as to filter dirt of the wash water according to the rotational flow by the vortex guide 30 during the washing process. ) Is attached.

4 is a plan view showing the vortex guide according to the present invention, wherein the filter 40 is attached to the outermost inner surface of the vortex guide 30 and has a length that can cover only a part of each passage cross section. .

In addition, the filter 40 is mounted to be inclined at a predetermined angle with respect to the center of curvature of the vortex guide 30 so as to easily filter dirt.

FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2, and as shown therein, the bottom surface of the thumb 20 is bent to freely flow the washing water without being disturbed by the filter 40.

The filters 40 can filter the small dirt that is subjected to a large centrifugal force by making the mesh size finer as the attached portion moves away from the center.

Referring to the operation of the filtration device of the dish washing machine as described above are as follows.

First, the washing stroke will be described.

When the wash water flows into the thumb 20, it is sucked by the water supply and drainage pump 1.

The pump 1 is provided with a rotating wheel (not shown) that is bent in one direction therein, and the rotational direction of the rotating car is reversed at the time of washing and draining so that a difference in suction power at washing and suction power at draining occurs. Occurs.

Comparing this with the flow rate at the inlet of the pump 1, the flow rate during washing is about four times higher than the flow rate during drainage.

Thus, the washing water introduced into the thumb 20 during the washing generates a rotational flow while passing through the vortex guide 30 at a high speed by the suction force by the rotation of the rotary car installed inside the pump 1 and accordingly wash water The dirt contained in is subjected to centrifugal force.

The centrifugal force is collected from the inside of the vortex guide 30 to the outside, and is filtered by the filters 40 installed at the outermost side of the vortex guide 30. Only the circulation of the flow path.

In addition, the washing water is introduced into the pump 1 by gradually forming a laminar flow by the vortex guide 30, thereby reducing the flow noise.

When the washing is finished, the drainage is performed. At this time, the suction flow rate of the pump 1 is significantly lower than that of the washing, and the washing water passing through the vortex guide 30 is discharged to the outside together with the dirt floating inside without receiving centrifugal force.

When the water level in the thumb 20 is lowered, the dirt is collected on the bottom surface of the curved thumb 20 can be easily discharged to the outside with the wash water.

According to the filtration device of the dishwasher of the present invention, in the dishwasher using the integrated water supply and drainage pump, the waste may be collected in the filter so that the soil is not scattered again, and the collected waste may be discharged when the collected water is drained. There is an effect to eliminate the inconvenience of having to deal with the dirt collected inside, and to reduce the flow noise.

Claims (5)

A sump containing wash water for washing dishes, a spiral vortex guide mounted within the thumb and having a spiral vortex guide having a radius of curvature from the center so as to generate a rotational flow in the wash water introduced into the thumb; Filtering device of the dishwasher, characterized in that consisting of a plurality of filters to filter the dirt of the washing water according to the rotational flow by the vortex guide during the process from the center of washing. The filtration apparatus of claim 1, wherein the bottom surface of the thumb is curved to freely flow the washing water without being disturbed by the filter. The filtration apparatus of claim 1, wherein the vortex guide is detachable from the thumb. The filtration apparatus of claim 1, wherein the filter is mounted to be inclined at a predetermined angle with respect to the center of curvature of the vortex guide to easily filter dirt. 5. The filter apparatus according to claim 1 or 4, wherein the filters have different mesh sizes.

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