KR20060043892A - Euro structure of dishwasher sump - Google Patents

Abstract

The present invention relates to a dishwasher, and more particularly, to a channel structure of a dishwasher sump to improve the collection structure of food wastes contained in the washing water by improving the flow channel structure inside the sump.

The flow path structure of the dishwasher sump according to the present invention includes a sump cover; An upper chamber mounted below the sump cover, the upper chamber having a flow path configured to selectively guide the washing water to the lower nozzle or the water guide; A washing pump coupled to the lower side of the upper chamber, the washing pump for pumping the washing water, a turbidity sensor guide flow passage through which a portion of the washing water pumped by the washing pump is moved to the turbidity sensor, and the washing water moved to the turbidity sensor guide passage. A drain drain pipe configured to guide the drain pump, a drain flow path through which the washing water falls through the lower drain hole, and a drain guide tube formed at an end of the drain flow path to guide the wash water dropped from the drain drain port to the drain pump; And a lower chamber formed at a side of the drain guide tube and including a counter flow hole for directing the washing water dropped from the lower drain port to the drain channel. And a sump housing in which the lower chamber is seated, and a washing water storage unit configured to store the washing water.

By the flow path structure of the dishwasher sump according to the present invention, a part of the washing water passing through the turbidity sensor to the drain pump is moved to the drain chamber and then back to the soil chamber to recover the food waste without backflow again. There is.

Soil chamber, sump housing, impeller

Description

A flow structure in the sump of a dish washer}

1 is a cross-sectional view of the dishwasher having a sump passage structure according to the spirit of the present invention.

Figure 2 is an exploded perspective view of the sump according to the spirit of the present invention.

3 is a plan view of the upper chamber mounted inside the sump according to the spirit of the present invention;

4 is a plan view showing a lower chamber according to the spirit of the present invention.

5 is an enlarged perspective view of a portion “A” of FIG. 4;

<Description of the symbols for the main parts of the drawings>

100: sump 110: sump housing

120: sump cover 200: soil chamber

210: lower chamber 220: upper chamber

The present invention relates to a dishwasher, and more particularly, to a channel structure of a dishwasher sump to improve the collection structure of food wastes contained in the washing water by improving the flow channel structure inside the sump.

In general, the dishwasher is a home appliance that functions to wash and dry the dishes mounted on each rack by spraying the washing water moved by the washing pump to the upper rack and the lower rack through a spray nozzle. In addition, the dishwasher includes a tub that forms an appearance, a dish rack for receiving dishes in the tub, a spray nozzle for spraying the washing water onto the surface of the dish, and a sump mounted on the bottom of the tub to store the washing water.

In addition, a turbidity sensor is mounted at one side of the sump or at a portion such as a heater for heating the wash water flowing into the sump, thereby detecting the degree of contamination of the wash water during the washing process. If the wash water is contaminated below the set level, the wash water is discharged and clean water is introduced again.

On the other hand, in the case of a conventional dishwasher, food debris on the tableware is dropped by the pressure of the washing water sprayed from the spray nozzle. Then, the food waste separated from the table surface is collected on the tub bottom surface. In addition, a filter for filtering the debris is mounted on the upper surface of the sump, so that bulky foreign matter does not flow into the sump. And, inside the sump, a disposer for crushing the introduced debris is mounted. Therefore, the washing water flow in the sump is blocked in the process of moving to the spray nozzle so as not to interfere with the washing water injection.

However, in a sump mounted in a conventional general dishwasher, in order to prevent food waste collected in the sump from being moved to the spray nozzle, a chamber is formed in which food waste is collected separately.

In detail, it is preferable that the food waste generated during the washing process is stored separately so that the food waste is discharged to the outside of the dishwasher at one time during the draining process. However, in the case of the conventional dishwasher, since the food waste storage chamber as described above does not exist, the food waste moves to the spray nozzle together with the washing water, and there is a disadvantage in that the washing water flow path is blocked in the moving process.

The present invention has been proposed to solve the above problems, the food waste generated during the washing process is stored in a predetermined place inside the sump, and when the draining process is started, the dishwasher to quickly discharge to the outside of the dishwasher at once An object of the present invention is to provide a sump flow path structure.

In addition, it is an object of the present invention to provide a flow path structure of the dishwasher sump that the dirty washing water in the washing process is moved to the drain pump, and then directly to the food recovery chamber instead of being flowed back to the chamber for recovering food waste.

Flow passage structure of the dishwasher sump according to the present invention for achieving the object as described above is a sump cover; An upper chamber mounted below the sump cover, the upper chamber having a flow path configured to selectively guide the washing water to the lower nozzle or the water guide; A washing pump coupled to the lower side of the upper chamber, a washing pump for pumping the washing water, a turbidity sensor guide flow passage through which a portion of the washing water pumped by the washing pump is moved to the turbidity sensor, and the washing water moved to the turbidity sensor guide passage. A lower drain hole through which the water is guided to the drain pump, a drain flow path through which the washing water falling through the lower drain hole flows, and an end portion of the drain flow path, and the drain guide guiding the washing water dropped from the lower drain port to the drain pump. A lower chamber including a pipe and a back flow hole formed on the side of the drain guide tube to direct the washing water dropped from the lower drain port to the drain channel; And a sump housing in which the lower chamber is seated, and a washing water storage unit configured to store the washing water.

According to the above configuration, the contaminated washing water moved to the drain pump flows directly into the chamber in which food waste is collected, thereby reducing the loss due to the flow path.

1 is a cross-sectional view of a dish washer provided with a sump passage structure according to the spirit of the present invention.

Referring to FIG. 1, the dishwasher 10 having a sump passage structure according to the present invention has an outer shape, a tub 11 having a dish washing tank formed therein, and formed on a front surface of the tub 11. The door 18 for opening and closing the jaw jaw, and the sump 100 is formed in the center of the bottom surface of the tub 11, the washing water is stored.

In addition, a washing motor 190 attached to the lower side of the sump 100 to drive a washing pump (not shown) mounted inside the sump 100 and a path through which the washing water pumped by the washing pump moves. And a lower nozzle 16 coupled to the upper surface of the sump 100 and spraying the washing water upward and / or downward from the inside of the washing tank, and the upper portion of the water guide 14. An upper nozzle 15 attached to the upper surface of the water guide 14 and extending in a vertical direction and positioned at the center of the washing tank, and a top nozzle 17 formed on the ceiling of the tub to spray the washing water vertically downward. This includes.

In addition, the upper rack 12 mounted on the upper side of the upper nozzle 15 so that the dishes are washed by the upper nozzle 15, and the lower nozzle 16 so that the dishes are washed by the lower nozzle 16. It includes a lower rack 13 mounted on the upper side of).

Hereinafter will be described the operation of the dishwasher 100 according to the present invention.

First, the user opens the door 18 of the dishwasher 100 and pulls the upper rack 12 and / or lower rack 13 to the outside of the washing tank. Then, dishes are stored in the racks 12 and 13. The door 18 is then closed and power is applied to allow the dishwasher to operate.

On the other hand, when power is applied to the dishwasher 100 and the washing step is performed, the washing water flowing from the water source is introduced into the sump 100. Then, after a certain amount of washing water flows into the sump, the washing motor 19 is operated. The impeller 130 (refer to FIG. 2) is connected to the motor shaft of the washing motor 19, and the washing water is rotated so that the washing water flows into the lower nozzle 16 and the water guide 14. Pumped.                     

In addition, the wash water pumped by the water guide 14 is finally moved to the top nozzle 17 and the upper nozzle 15 is injected into the washing tank. In addition, the dishes stored in the racks 12 and 13 are washed by the sprayed washing water.

Here, the top nozzle 17 sprays the washing water vertically downward, and the upper nozzle 15 sprays the washing water vertically upward, thereby washing the dishes stored in the upper rack 12.

In addition, the lower nozzle 16 sprays the washing water vertically upward, thereby washing the dishes stored in the lower rack 13. In addition, by forming an injection hole in the bottom surface of the upper nozzle 15, the washing water is sprayed in both the up and down directions, it can be configured to simultaneously wash the upper side of the tableware accommodated in the lower rack (13).

In addition, when the washing step is completed, the dirty washing water collected in the sump 100 is filtered foreign matter by a filter (not shown). In addition, the washing water filtered with foreign matter is discharged to the outside of the dishwasher 100 through a drain pump (not shown).

In addition, when the washing water is discharged to the outside, clean washing water is introduced into the sump 100 again through an inlet, and sprayed through the spray nozzles 15 and 16 in the same manner as the washing step. The dishware is rinsed by the sprayed clean water. Then, after the rinsing step is completed, the washing operation is completed by going through the drying step.

2 is an exploded perspective view of a sump according to the spirit of the present invention.

Referring to FIG. 2, the sump 100 having a flow path structure according to the present invention includes a sump housing 110 in which washing water is stored therein, a sump cover 120 covering an upper portion of the sump housing 110, The sump chamber 200 is mounted inside the sump housing 110 to guide the flow of the washing water.

In detail, the sump cover 120 covers an upper surface of the sump housing 110 and is inserted into a groove formed at the center of the bottom surface of the tub 11. In addition, a plurality of recovery holes 121 are formed around the rim to wash water generated during the washing process to fall into the sump 100. In addition, the recovery hole 121 may be formed in various shapes such as a circle or a long hole.

In addition, the sump cover 120 has a plurality of long holes are formed in the inner side of the recovery hole 121, the filter 122 having a fine hole is attached to the back of the sump cover 120 of the portion where the long holes are formed do. In addition, the washing water introduced on the soil chamber 200 flows back through the long hole formed in the filter 122 and the upper surface of the filter 122. The backwashing water is configured to flow back into the sump 100 through the recovery hole 121. In addition, a lower nozzle connecting pipe 123 connected to the lower nozzle 16 is mounted at the center of the sump cover 120, and a water guide connecting pipe connected to an end of the water guide 14 is provided at an edge thereof. 124 is formed to protrude.

In addition, a soil chamber 200 is installed below the sump cover 120, and the soil chamber 200 allows the washing water to be moved to the lower nozzle connector 123 or the water guide connector 124. An upper chamber 220 in which a flow path is formed, and a lower chamber 210 equipped with a washing pump for pumping the washing water. In addition, an impeller 130 for pumping the washing water is mounted between the upper chamber 210 and the lower chamber 220. The impeller 130 is a motor extending from a motor mounted on the bottom of the sump housing 110. It is connected to the axis and rotates.More details of the upper chamber 220 and the lower chamber 210 will be described with reference to the drawings.

On the other hand, the sump housing 110 is formed on the outer circumferential surface in order to discharge the washing water stored in the washing water storage unit 114 and the washing water storage unit 114, the bottom is recessed to a predetermined depth to the outside to the outside A drain pump case 111 and a drain pump guide tube 115 for guiding the food waste stored in the soil chamber 200 to be moved to the drain pump case 111 are included.

In detail, a heater 140 for heating the washing water is mounted on the bottom surface of the washing water storage unit 114. In addition, the disposer 150 is connected to the motor shaft penetrating the bottom surface of the sump housing 110 to crush food while rotating. In addition, at one edge of the sump housing 110, a vario valve 112 is installed to set a direction such that the washing water pumped from the soil chamber 200 flows to the lower nozzle 16 or the water guide 14. . In addition, the turbidity sensor 113 for measuring the degree of contamination of the washing water in the washing and rinsing process is mounted at a position spaced a predetermined distance from the variio valve 112.

Hereinafter, the operation of the sump 100 and the flow of the washing water according to the spirit of the present invention constituting the above configuration will be described.                     

First, when the dishwasher 10 starts to operate, the washing water flows into the sump housing 110. Then, power is applied to the heater 140 to heat the washing water. When the process is completed, the motor 19 mounted on the bottom surface of the sump housing 110 is operated. Then, the disposer 150 and the impeller 130 connected to the shaft of the motor 19 rotate. Then, the impeller 130 rotates to pump the wash water stored in the wash water storage unit 114. In addition, the pumped washing water moves along the flow path formed in the lower chamber 210 and the upper chamber 220. In addition, the movement direction of the washing water is determined by the variio valve 112. In addition, the washing water in which the flow direction is set by the vario valve 112 is moved to the lower nozzle connecting pipe 123 or the water guide connecting pipe 124 formed on the sump cover 120. Finally, the washing water is moved to the lower nozzle 16 or the upper nozzle 15 and the top nozzle 17 is sprayed into the tub (11).

3 is a plan view of the upper chamber mounted in the sump according to the spirit of the present invention.

Referring to FIG. 3, the upper chamber 220 according to the present invention has a pump case cover 221 covering a pump case 211 (see FIG. 4) formed in the lower chamber 210 at a central portion thereof. In addition, the pump case cover 221 is formed in a spiral shape, which is the same as the shape of the pump case 211 seated on the lower side of the pump case cover 221. In addition, the pump case cover 221 is formed helically because it is made along the shape of the pumping flow path 211a of the pump case 211.                     

In detail, the upper chamber 220 is formed at the end of the pump case cover 221 made of a spiral, the varios valve through-hole 222 for inserting the varios valve 112 is formed. In addition, the water guide is formed on the opposite side of the lower nozzle guide flow path 223 and the lower nozzle guide flow path 223 which are bent from the variuo valve through hole 222 to the center of the pump case cover 221. Guide flow path 224 is formed. In more detail, the washing water pumped by the washing pump is selected from the lower nozzle guiding passage 223 or the water guide guiding passage 224 by the variuo valve 112 inserted into the variuo valve through hole 222. It will flow selectively to either side.

In addition, the upper chamber is a turbidity sensor guide flow path 226 branched from one side of the edge of the flow path connecting the end of the pump case cover 221 and the variuo valve through-hole 222, and the turbidity The turbidity sensor through-hole 225 connected to the end of the sensor guide flow path 226, into which the turbidity sensor 113 is inserted, and an upper drain hole for allowing the wash water passing through the turbidity sensor 226 to flow into the drain pump ( 227).

Referring to the flow of the washing water occurring in the upper chamber 210 having the configuration described above, the washing water that has been moved to the vario valve 112 along the pumping passage 211a of the lower chamber 220 is The lower valve guide flow path 223 or the water guide guide flow path 224 is moved by the reo valve 112. In addition, a small amount of the washing water that is moved to the vario valve 112 is moved to the turbidity sensor 113 along the turbidity sensor guide flow path 226. Then, after the turbidity is measured by the turbidity sensor 113, the wash water is dropped through the upper drain 227.                     

4 is a plan view illustrating a lower chamber according to the spirit of the present invention, and FIG. 5 is an enlarged perspective view of part “A” of FIG. 4.

4 and 5, the lower chamber 210 according to the present invention includes an impeller seating portion 211b in which the impeller 130 is seated in a central portion thereof, and wash water pumped by the rotation of the impeller 130. A pump case 211 including a pumping flow path 211a for guiding the flow is formed in the center portion. In addition, a mesh filter 214 is installed at a lower end of the impeller seating portion 211b to filter food waste included in the washing water flowing into the impeller 130. And, at the end of the pumping flow path 211a is formed a variuo valve through-hole 215 into which the variuo valve 112 is inserted. And, the turbidity sensor through-hole 216 for inserting the turbidity sensor 113 is formed in the side of the variuo valve through-hole 215. In addition, a lower drain 218 is formed at a predetermined distance from the turbidity sensor gona hole 216.

In addition, the lower chamber 210 is formed around the outer circumferential surface of the pump case 211, and further includes a drain flow passage 217 that is a flow path for the washing water flowing down through the lower drain port 218 flows back.

In detail, a cylindrical drain guide tube 219 is formed at the end of the drain passage 217 to extend vertically downward by a predetermined length. In addition, a side flow hole 213 is formed at a side of the drain guide tube 219 so that a part of the washing water falling through the lower drain port 218 does not pass through the drain pump but flows back to the drain flow channel 217 immediately. do. In addition, the backflow hole 213 is formed to have a shorter length than the drain guide pipe 219. In addition, the drain guide pipe 219 is directly connected to the drain pump guide pipe 115 of the sump housing 110. Therefore, the washing water flowing down into the drain guide pipe 219 is moved to the drain pump case 111 and then flows back to the drain flow channel 217. In addition, the washing water moved to the drain passage 217 is accumulated on the drain passage 217 together with the foreign matter.

On the other hand, the upper surface of the drain flow path 217 is covered by a filter 122 mounted on the bottom of the sump cover 120. Therefore, the washing water moved to the drain passage 217 flows back out of the sump cover 120 through the filter 122. Then, the backwashed wash water is moved back to the wash water storage unit 114 through the recovery hole 121. In addition, foreign matters such as food wastes are filtered by the filter 122 and accumulated on the drain passage 217 in the process of backwashing the wash water on the drain passage 217, and only the wash water passes through the recovery hole 121. Is moved.

In addition, when the drain pump is operated in the drainage process, foreign matter accumulated on the drain flow path 217 is pumped by the drain pump and discharged to the outside of the dishwasher.

In addition, the washing water passing through the turbidity sensor 113 is moved to the lower drain 218, the portion of the washing water is moved to the drain pump inlet hole (212) formed by the drain guide pipe 219, the rest Some are moved to the backflow hole 213. Then, the washing water (a) guided to the drain pump inlet 212 is moved to the drain pump case 111, as described above, and then flowed back to the drain flow path (217). On the other hand, the washing water (b) guided to the backflow hole 213 is lowered along the lower drain 218, and then immediately flows back to the drain flow passage 217 via the backflow hole (213). That is, since the counter flow hole 213 is formed, all of the washing water passing through the turbidity sensor 113 is not moved to the drain pump but only a part of the wash pump moves. Therefore, the recovery capacity of the foreign matter contained in the wash water is improved, and the loss due to the flow is greatly reduced.

By the flow channel structure of the dishwasher sump according to the present invention having the configuration as described above, part of the washing water that passes through the turbidity sensor to the drain pump does not flow back to the drain pump case and then back again, and recovers the food waste immediately. There is an effect that is moved to the soil chamber.

Therefore, the loss caused by the flow path generated inside the sump is reduced, the amount of food waste contained in the washing water moved to the injection nozzle is significantly reduced, there is an effect that the flow clogging phenomenon is significantly reduced.

Claims (5)

Sump cover; An upper chamber mounted below the sump cover, the upper chamber having a flow path configured to selectively guide the washing water to the lower nozzle or the water guide; A washing pump coupled to the lower side of the upper chamber, the washing pump for pumping the washing water, a turbidity sensor guide flow passage through which a portion of the washing water pumped by the washing pump is moved to the turbidity sensor, and the washing water moved to the turbidity sensor guide passage. A drain drain pipe configured to guide the drain pump, a drain flow path through which the washing water falls through the lower drain hole, and a drain guide tube formed at an end of the drain flow path to guide the wash water dropped from the drain drain port to the drain pump; And a lower chamber formed at a side of the drain guide tube and including a counter flow hole for directing the washing water dropped from the lower drain port to the drain channel. And And a sump housing in which the lower chamber is seated and a washing water storage unit configured to store the washing water. The method of claim 1, The drain guide pipe is formed in the sump housing, the flow path structure of the dishwasher sump, characterized in that inserted into the drain pump guide pipe communicating with the drain pump case. The method of claim 1, A portion of the washing water moved along the turbidity sensor guide flow path passing through the turbidity sensor falls through the upper lower drain, The dropped washing water is guided to the drainage pump by the drainage guide pipe, and then flows back to the drainage flow path of the dishwasher sump, characterized in that the flow. The method of claim 1, A portion of the washing water moved along the turbidity sensor guide flow path and passing through the turbidity sensor falls through the lower drain hole, The flow path structure of the dishwasher sump characterized in that the dropped washing water is guided directly to the drain flow path through the backflow hole. The method of claim 1, The partition wall of the lower drain is divided into a drain pump inlet hole for washing water to be introduced into the drain pump, and the drain guide tube to be separated into a drain pump outlet hole for flowing back from the drain pump.

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