KR100934695B1 - Filter assembly for dishwasher and dishwasher using same - Google Patents

Abstract

The present invention is a filter assembly for a dish washer mounted to the upper portion of the sump to drain or feed the wash water is installed on the inner bottom to filter out the foreign matter, the filter assembly for dishwasher, so as to be seated horizontally on the upper portion of the sump A first filter part having a first frame having a shape corresponding to an inner circumferential surface shape of the sump and a perforating network for filtering foreign substances contained in the water to be collected and installed inside the first frame; The second frame extending in the vertical direction from the bottom surface of the first filter portion to surround the circulation pump, and the fine foreign matter which is installed inside the second frame and is not filtered by the first filter portion does not flow into the circulation pump. A second filter part having a mesh net having a size smaller than that of the perforated net of the first filter part; And fastening means for fastening the first filter part and the second filter part, by preventing the foreign particles from entering into the suction port in which the circulation pump is embedded, so that the foreign substances do not flow into the washing chamber, Is prevented from being recontaminated, and foreign matters of fine particles stuck to the second filter part are separated from the second filter part by water flowing through the drain port or the water supply port, thereby effectively clogging the second filter part. Can be prevented.

Dishwasher, Filter, Drain Pump, Circulation Pump, Filter Clogged

Description

Filter assembly and dish washer using the same

The present invention relates to a dishwasher, and more particularly, by preventing foreign particles from entering the fine particles into the inlet side of the circulation pump, which prevents foreign substances from entering the washing chamber and prevents contamination of the dishes. 2, the filter assembly for the dishwasher which can effectively prevent the clogging phenomenon of the second filter part by debris of the fine particles adhering to the filter part by the water flowing through the drain or the water supply port; It relates to a dishwasher using the same.

In general, the dishwasher is a device for automatically washing dishes, such as dirty dishes after a meal, largely divided into household and large cooking. There is a small tabletop type that is used in direct connection to the hot water supply equipment such as automatic hot water floor installation type and instant hot water dispenser. They are washed off with a detergent solution by the respective spraying method and dried after finishing washing. It is also used as a storage compartment, and it can be expected to have a sterilizing effect depending on the hot water and the washing effect. For mass cooking, there are two types of conveyors, the ultrasonic method and the vibration method.

1 is a view schematically showing the internal structure of a dishwasher according to the prior art, as shown, the conventional dishwasher is a washing room (3) which is a space for washing dishes stored therein, and the washing operation The main body 1 includes a driving unit 5 in which a plurality of parts for carrying out are embedded, and a door 7 that can be opened and closed is installed on the front surface of the main body 1.

In addition, the lower part of the washing chamber (3) is provided with a sump (8) which is sprayed into the washing chamber (3) to collect the washing water after washing the dishes.

Specifically, the upper rack 12 and the lower rack 14 for storing dishes are installed in the washing chamber 3, and the upper injection arms 22 are disposed below the upper rack 12 and the lower rack 14, respectively. ) And the lower injection arm 24 is installed to wash the dishes by spraying the washing water upwards.

The driving unit 5 includes a water supply pump (not shown) that operates to supply water from an external water supply source, and a circulation pump that operates so that water supplied to the sump 8 by the water supply pump flows into the washing chamber 3. (Not shown), and after being used in the washing chamber 3, a drain pump 9 or the like which operates to discharge the water collected into the sump 8 to the outside is installed.

In addition, between the sump (8) and the respective injection arms (22, 24) so that the water introduced into the sump (8) by the operation of the water supply pump flows into the upper injection arm (22) and lower injection arm (24). Connecting pipes 322 and 324 are installed.

On the other hand, the filter member 30 for filtering foreign matter is installed at the inlet of the drain pipe 10 connected to the drain pump 9 side.

However, in the case of the filter member 30, foreign substances of relatively large particles, such as food waste, are usually filtered out, but foreign substances of fine particles, such as red pepper powder, cannot be filtered out, and thus, foreign substances of fine particles simply pass through the filter member 30. Afterwards, it may be introduced into the washing room 3 again, which may cause a problem of re-contaminating utensils.

A filter member for solving this problem is disclosed in Korean Patent Laid-Open No. 2007-74274.

Figure 2 is a perspective view of a conventional filter member, showing a cylindrical filter member 100 formed in multiple at the drain pipe inlet.

The filter member 100 is formed with an inlet 221 through which the washed water is introduced into the upper part, and a filter net is formed under the filter member 100. The filter network is partitioned into an upper first filter 400 and a lower second filter 500, and the first filter 400 and the outer side of the first filter 400 and the second filter 500. A third filter 37 having a finer net than the second filter 500 is provided.

By such a configuration, when the wash water flows into the inlet 221, the first filter 400 filters the dirt, and the second filter 500 filters the dirt. The filtered dirt falls into the lower part of the filter member 100 and is accommodated in the dirt chamber (not shown) located under the filter member 100.

On the other hand, the fine dirt not filtered through the first filter 400 and the second filter 500 is filtered through the third filter 37 is accommodated in the lower chamber.

In this way, the washing water filtered through the plurality of filter members flows to the side of the filter member 100 to be drained to the outside, or is supplied again through the operation of the circulation pump.

However, in the above-described conventional filter member 100, the first filter 400 and the second filter 500 filter dirt of relatively large particles, and the third filter 37 filters dirt of fine particles such as red pepper powder. In the case of the third filter 37 that filters the fine soil, fine soil such as red pepper powder is adsorbed on the filter network, which may cause clogging of the filter network and the flow direction of the washing water is also formed outside the filter member. As a result, the clogging shape of the third filter 37 is further accelerated as time passes.

Therefore, there is a problem that the washing water introduced into the filter member 100 is not smoothly drained to the outside or the water supply to the inside due to the clogging shape of the third filter 37.

The present invention has been invented to solve the above problems, the object of the present invention is to provide a filter assembly for a dishwasher which can prevent the foreign matter contained in the water collected in the water collecting container after the dish washing to be introduced back into the washing chamber. have.

In addition, an object of the present invention is to provide a dishwasher using a filter assembly for a dishwasher which can prevent the clogging of the secondary filter by allowing foreign substances of fine particles adsorbed to the secondary filter to be easily separated.

According to an aspect of the present invention for achieving the above object, a drainage pump and a circulation pump is installed in the inner lower portion is mounted on top of the sump for draining or supplying the wash water filter assembly for the dishwasher to filter the foreign matter, A first frame having a shape corresponding to the inner circumferential surface shape of the sump so as to be seated in a horizontal direction on the sump, and a perforated network for filtering foreign substances contained in the water collected and installed inside the first frame; 1 filter unit; The second frame extending in the vertical direction from the bottom surface of the first filter portion to surround the circulation pump, and the fine foreign matter which is installed inside the second frame and is not filtered by the first filter portion does not flow into the circulation pump. A second filter part having a mesh net having a size smaller than that of the perforated net of the first filter part; And fastening means for fastening the first filter part and the second filter part.

In addition, the present invention the washing chamber for washing the dishes stored by spraying water supplied through the injection arm; It is installed in the lower portion of the washing chamber, the drain is provided with a drain pump in one lower portion, a water inlet is formed in the other lower portion, a suction port with a built-in circulation pump is formed between the drain and the water inlet, horizontal on the inner peripheral surface Reservoir with stepped in the direction; And a first frame having a shape corresponding to the shape of the inner circumferential surface of the sump so as to be seated in a horizontal direction on the step of the sump, and a perforated network for filtering foreign matter contained in the water collected by being installed inside the first frame. The first filter unit, the second frame extending in the vertical direction from the bottom surface of the first filter portion to surround the circulation pump and the fine foreign matter which is not filtered by the first filter unit is installed inside the second frame and the circulation A second filter part having a mesh network having a size smaller than that of the perforated net of the first filter part, and a fastening means for fastening the first filter part and the second filter part so as not to flow into the pump, and collecting water from the washing chamber. It characterized in that it comprises a filter assembly for filtering foreign matter contained in the water.

Preferably, the fastening means is formed on the inside of the first frame of the first filter portion so as to correspond to the plurality of protrusions formed in the outward direction on the upper surface of the second frame of the second filter portion, the upper surface of the second frame and the It characterized in that it comprises a fastening frame formed with a plurality of inserts on the bottom surface to be inserted and fastened.

In addition, the perforated network of the first filter unit is characterized in that the foreign matter receiving groove is formed on one side so that the filtered foreign matter is not dispersed.

In addition, the first frame of the first filter unit is characterized in that a handle extending upward on one side is formed.

In addition, the water inlet is connected to an external water source so that water is supplied from the water supply to the sump, and the water supplied to the sump is introduced into the washing chamber through the suction port by the operation of the circulation pump. The sprayed water is sprayed through the spray arm, and the sprayed water is collected in the sump through the filter assembly after washing the stored dishes, and the water collected in the sump is operated by the drain pump. Characterized in that drained to the outside through.

In addition, the circulation pump is characterized in that formed adjacent to the water inlet.

The present invention filters the foreign matter of relatively large particles by the first filter unit, and then filter the foreign matter of fine particles such as red pepper powder through the second filter unit, thereby preventing the foreign particles of fine particles from entering the suction port side of the built-in circulation pump. As a result, foreign substances do not flow into the washing chamber, thereby preventing the dish from being recontaminated.

In addition, the foreign matters of the fine particles adhering to the second filter part are separated from the second filter part by the water flowing through the drain port or the water supply port, thereby effectively preventing the clogging phenomenon of the second filter part.

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

First, a filter assembly for a dish washer according to an embodiment of the present invention will be described.

3 is an exploded perspective view illustrating a filter assembly for a dish washer according to an embodiment of the present invention, FIG. 4 is a side view illustrating the first filter unit of FIG. 3, and FIG. 5 illustrates the second filter unit of FIG. 3. Side view.

As shown in the drawing, the dishwasher filter assembly according to the present invention is mounted on the sump of the dishwasher to filter foreign matter, the first filter unit 100, the second filter unit 200, And fastening means.

The first filter part 100 is a filter that filters foreign particles of relatively large particles, and is installed inside the first frame 110 and the first frame 110 seated on an upper portion of the sump 300 (see FIG. 6). Perforated network 120 is included.

The first frame 110 is injection molded into a shape corresponding to the shape of the inner circumferential surface of the sump to be seated in the horizontal direction on the top of the sump (300).

The perforated network 120 filters out relatively large foreign matters contained in the washing water after the washing, but passes only fine foreign matters such as red pepper powder. On the other hand, the perforated network 120 is not formed over the entire surface of the first filter unit 100, but is formed in a portion except the upper side of the second filter unit 200 to be described later. That is, the first filter unit 100 includes a sealing surface 121 to seal the upper portion of the second filter unit 200.

On the other hand, in the center of the rear upper surface of the first filter unit 100 is formed a handle 130 that is extended upward and bent backwards. The handle 130 facilitates the user's mounting of the filter assembly when the filter assembly is taken out to clean the filter assembly mounted on the sump.

The second filter unit 200 is a filter that filters foreign substances, such as pepper powder, of fine particles that are not filtered by the first filter unit 100, and passes through the first filter unit 100. The second frame 210 is fastened to the bottom and includes a mesh network 220 is installed inside the second frame (210).

The second frame 210 extends a predetermined length in a vertical direction from the bottom of the first filter unit 100 and has a streamline shape to surround the circulation pump 310 (see FIG. 6).

The mesh network 220 is installed inside the second frame 210 and has a size smaller than that of the perforated network 120 of the first filter part 100, so that the fine particles are not filtered by the first filter part 100. It filters out foreign substances and prevents them from entering the circulation pump side.

The fastening means serves to fasten the first filter part 100 and the second filter part 200, and the protruding part of the insertion part 140 and the second filter part 200 of the first filter part 110. 240).

Specifically, the protrusion 240 is formed by protruding a predetermined length to the outside of the second frame 210 of the second filter unit 200, and is formed on the front and left and right sides of the second frame 210, respectively.

The insertion part 140 is formed on the bottom surface of the fastening frame 150 of the first filter part 100, and is formed to be concave at a predetermined length inward so that the protrusion 240 is inserted and fastened.

Here, the fastening frame 150 is formed on the inner side of the first frame 110, that is, on the perforated network 120 in a shape corresponding to the shape of the top surface of the second frame 210.

By the configuration of the filter assembly as described above, the upper portion of the first filter unit 100 filters out foreign substances having a relatively large particle, and the lower second filter unit 200 serves to filter out foreign substances having a relatively small particle.

On the other hand, looking at the perforated network 120 of the first filter unit 100, the foreign matter receiving groove 160 of a predetermined size is formed on the side of the portion where the second filter unit 200 is fastened.

The foreign matter receiving groove 160 is formed so that a portion of the perforated network 120 is recessed downward, and serves to receive the foreign matter contained in the washing water introduced from the upper portion of the perforated network 120.

That is, the foreign matter contained in the washing water is dispersed in the upper perforated network 120 by the water pressure serves to prevent the flow back to the washing chamber.

Next, with reference to the accompanying drawings will be described with respect to the use of the filter assembly for dishwasher described above with respect to the filtering system using the same.

6 is a perspective view of the inside of the sump of the dishwasher equipped with a filter assembly according to an embodiment of the present invention from the top, Figure 7 shows a state in which the filter assembly according to the invention is mounted in the sump from above 8 is a schematic view showing the inside of the sump from the side, and FIG. 9 is a block diagram schematically illustrating a filtering system using a filter assembly for a dish washer according to an embodiment of the present invention.

First, looking at the inside of the sump 300 of the dishwasher, the stepped 301 is formed in the horizontal direction on the inner surface of the sump 300, the first frame 110 of the filter assembly described above. ) Is seated.

In addition, a drain port 302 is formed at one lower portion of the sump container 300, and a drain pump 320 is installed inside the drain port 302 to finish washing the dish and wash water collected in the sump bottle 300. Allow drain to the outside of the washer.

In addition, a water supply port 303 is formed at the lower side of the other side of the sump 300 to allow the washing water to be supplied into the sump 300 from an external water supply.

At this time, between the drain port 302 and the water inlet 303 is formed a suction port 304 in which the circulation pump 310 is built, the suction port 304 is formed adjacent to the water supply port 303.

When the filter assembly is mounted on the upper part of the sump container 300, the first filter part 100 is mounted in a horizontal direction on the upper part of the sump container 300, and the second filter part 200 is a circulation pump 310. It is mounted as if surrounding the built-in suction port 304. Here, reference numeral A denotes a position where the second filter unit 200 is seated.

On the other hand, the washing chamber 400 is located in the upper portion of the sump 300, the injection arm 410 is provided with a plurality of nozzles (not shown) on the upper surface inside the washing chamber.

The spray arm 410 sprays water supplied through the circulation pump 310 to wash dishes stored in the washing chamber 400.

Referring to the filtering system of the dishwasher configured as described above, the water supplied from the external water supply source 420 is first filtered through the water supply filter 430, and then to the sump 300 through the water supply port 303. Watering.

Water supplied to the sump 300 through the water inlet 303 is introduced into the washing chamber 400 through the suction port 304 by the operation of the circulation pump 310, and then washed through the injection arm 410 It is injected into the chamber 400.

Water sprayed from the washing chamber 400 to wash the dishes is dropped to the lower portion of the washing chamber 400 to pass through the filter assembly.

At this time, the perforated network 120 of the first filter unit 100 filters the foreign matter 501 of relatively large particles included in the water after washing, and the mesh network 220 of the second filter unit 200 is the first The filter unit 100 filters out foreign matter (such as pepper powder, etc.) 502 of fine particles not filtered out.

Therefore, the foreign matter 502 of fine particles such as red pepper powder flows into the suction port 304 and is supplied to the washing chamber 400 again, thereby preventing the contamination of the dishes.

The secondary filtered water through the filter assembly is collected in the sump 300, and then drained out of the dishwasher through the drain 302 by the operation of the drain pump 320.

Here, the foreign matter of the fine particles adhering to the left side (see FIG. 8) of the mesh network 220 of the second filter unit 200, that is, the side surface of the mesh network 220 adjacent to the drain 302, may be discharged from the drain pump. Due to the water pressure of the water exiting the drain port 302 by the operation of the 320 is separated from the mesh network 220 is drained to the outside through the drain port 302.

On the other hand, the foreign matter of the fine particles stuck to the right side of the mesh network 220, that is, the side of the mesh network 220 adjacent to the water inlet 303 is supplied to the inside of the sump 300 through the water inlet 303. The water is separated from the mesh network 220.

For this reason, it is very advantageous to install a suction port 304 in which the circulation pump 310 is built adjacent to the water supply port 303.

Therefore, since only a small amount of foreign matter adheres to the mesh network 220 when the circulation pump 310 is operated, the clogging shape of the second filter part 200 hardly occurs, so water is smoothly sucked into the inlet 304. do.

The embodiments of the present invention described above are merely illustrative of the technical idea of the present invention, and the protection scope of the present invention should be interpreted by the following claims. In addition, one of ordinary skill in the art to which the present invention pertains will be capable of various modifications and variations without departing from the essential characteristics of the present invention, all technical ideas within the scope equivalent to the present invention of the present invention It should be interpreted as being included in the scope of rights.

As described above, the present invention filters the foreign matter of relatively large particles by the first filter portion, and then filter the foreign matter of fine particles such as red pepper powder through the second filter portion, the foreign matter of the fine particles to the inlet side in which the circulation pump is built By preventing the inflow, it is possible to prevent the re-contamination of the tableware does not flow into the cleaning chamber.

In addition, the foreign matters of the fine particles adhering to the second filter part are separated from the second filter part by the water flowing through the drain port or the water supply port, thereby effectively preventing the clogging phenomenon of the second filter part.

1 is a view schematically showing the internal structure of a dish washer according to the prior art,

2 is a perspective view showing a conventional filter member,

3 is an exploded perspective view illustrating a filter assembly for a dish washer according to one embodiment of the present invention;

4 is a side view illustrating the first filter unit of FIG. 3;

5 is a side view illustrating the second filter unit of FIG. 3;

Figure 6 is a perspective view of the inside of the sump of the dishwasher is equipped with a filter assembly according to an embodiment of the present invention from the top,

Figure 7 is a perspective view from the top showing a state in which the filter assembly according to the invention mounted to the sump;

8 is a schematic view showing the inside of the sump from the side,

9 is a block diagram schematically illustrating a filtering system using a filter assembly for a dish washer according to one embodiment of the present invention;

-Explanation of symbols for the main parts of the drawings-

100: first filter unit 110: first frame

120: perforated network 130: handle

140: inserting portion 150: fastening frame

160: foreign matter receiving groove 200: the second filter unit

210: second frame 220: mesh network

240: protrusion 300: sump

301: step 302: drain

303: water inlet 304: inlet

310: circulation pump 320: drainage pump

400: washing chamber 410: spray arm

420: water supply source 430: water supply filter

Claims (10)

A drainage pump and a circulation pump are installed in the lower part of the inner side is mounted on the upper part of the sump for draining or supplying the washing water filter assembly for the dishwasher to filter foreign matter, A first frame having a shape corresponding to the shape of the inner circumferential surface of the sump so as to be seated in a horizontal direction on the upper part of the sump, and a perforated network for filtering foreign substances contained in the water collected and installed inside the first frame; A first filter unit; The second frame extending in the vertical direction from the bottom surface of the first filter portion to surround the circulation pump, and the fine foreign matter which is installed inside the second frame and is not filtered by the first filter portion does not flow into the circulation pump. A second filter part having a mesh net having a size smaller than that of the perforated net of the first filter part; And A fastening means for fastening the first filter part and the second filter part; The filter assembly of claim 1, wherein the first filter part has a sealing surface to seal the upper part of the second filter part. The method of claim 1, The fastening means may include a plurality of protrusions formed on an upper surface of the second frame of the second filter unit in an outward direction, and formed inside the first frame of the first filter unit so as to correspond to the shape of the upper surface of the second frame, and the protrusion is inserted and fastened. Filter assembly comprising a fastening frame formed with a plurality of inserts in the bottom as possible. The method of claim 1, The perforated network of the first filter unit is characterized in that the foreign matter receiving groove is formed on one side so that the filtered foreign matter is not dispersed. The method of claim 1, The first frame of the first filter unit is a filter assembly, characterized in that the handle extending upwardly formed on one side. A washing room for washing the stored dishes by spraying water supplied through the spray arm; It is installed in the lower portion of the washing chamber, the drain is provided with a drain pump in one lower portion, a water inlet is formed in the other lower portion, a suction port with a built-in circulation pump is formed between the drain and the water inlet, horizontal on the inner peripheral surface Reservoir with stepped in the direction; And A first frame having a shape corresponding to the inner circumferential surface shape of the sump so as to be seated in a horizontal direction on the step of the sump and a perforated network for filtering foreign substances contained in the water collected in the first frame; The first filter unit, the second frame extending in the vertical direction from the bottom surface of the first filter unit to surround the circulation pump and the fine foreign matter that is not filtered by the first filter unit is installed inside the second frame is the circulation pump A second filter part having a mesh network having a size smaller than that of the perforated network of the first filter part, and a fastening means for fastening the first filter part and the second filter part so as not to flow into the first filter part, It includes a filter assembly for filtering foreign matter contained in the water, The first filter unit has a dishwasher using a filter assembly, characterized in that provided with a sealing surface to seal the upper portion of the second filter unit. The method of claim 5, The fastening means may include a plurality of protrusions formed on an upper surface of the second frame of the second filter unit in an outward direction, and formed inside the first frame of the first filter unit so as to correspond to the shape of the upper surface of the second frame, and the protrusion is inserted and fastened. Dishwasher using a filter assembly, characterized in that it comprises a fastening frame formed with a plurality of inserts on the bottom. The method of claim 5, The perforated network of the first filter unit is dishwasher using a filter assembly, characterized in that the foreign matter receiving groove is formed in one side to be recessed downward so that the filtered foreign matter is not dispersed. The method of claim 5, The first frame of the first filter unit dishwasher using a filter assembly, characterized in that the handle is formed extending upward on one side. The method of claim 5, The water supply port is connected to an external water supply source so that water is supplied from the water supply source to the sump, and the water supplied to the sump flows into the washing chamber through the suction port by the operation of the circulation pump, thereby separating the water. Sprayed through sandstone, the sprayed water is collected in the sump through the filter assembly after washing the stored dishes, the water collected in the sump is externally through the drain by the operation of the drain pump Dishwasher using a filter assembly, characterized in that drained to. The method of claim 5, The circulation pump is a dishwasher using a filter assembly, characterized in that formed closer to the water inlet than the drain.

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