KR100761171B1 - A sump of a dish washer - Google Patents

Abstract

The present invention relates to a dishwasher, and more particularly, to a sump structure of a dishwasher, in a sump mounted on a tub bottom, in which a washing water flows easily inside the sump toward the drainage pump.

The sump structure of the dishwasher according to the present invention includes a sump case including a drain guide groove having a bottom surface recessed to a predetermined depth; A sump cover seated on an upper portion of the sump case; A drain pump for discharging the washing water stored in the sump case to the outside; And a drainage motor for driving the drainage pump.

By the sump structure of the dishwasher according to the present invention, all of the washing water in the sump is discharged to the drain pump in the drainage process, and discharged to the outside. There is an advantage to be maintained.

Sump, sump case, drain guide groove

Description

Sump structure of dishwasher {A sump of a dish washer}

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

Figure 2 is a perspective view showing the appearance of the sump according to the spirit of the present invention.

3 is a vertical cross-sectional view taken along the line Ι-Ι 'of FIG.

Figure 4 is a perspective view showing a sump case according to the spirit of the present invention.

5 is a plan view of the sump case;

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

100: sump 110: nozzle holder 120: midnight filter

130: sump cover 140: euro guide 150: impeller

160: pump sealing 170: pump lower 180: disposer

190: sump case 200: heater 210: Vario valve

220: turbidity sensor 230: washing motor 240: drainage motor

250: drain pump 260: Vario motor 270: micro switch

280: water sealing 290: washing pump 300: drain guide groove

The present invention relates to a dishwasher, and more particularly, to a sump structure of a dishwasher, in a sump mounted on a tub bottom, in which a washing water flows easily inside the sump toward the drainage pump.

In general, the dishwasher is a home appliance for cleaning the food residue on the surface of the dish by the high-pressure washing water sprayed from the spray nozzle. In detail, the dishwasher includes a tub in which a washing tank is formed and a sump mounted on the bottom of the tub to store washing water. Then, the washing water is moved to the spray nozzle by the pumping action of the washing pump mounted inside the sump, and the washing water moved to the spray nozzle is sprayed at high pressure through the spray hole formed at the dispensing nozzle end. In addition, the washing water sprayed at a high pressure hits the surface of the tableware, and dirt, such as food residues on the tableware, falls to the bottom of the tub.

Here, in the conventional sump structure, since the bottom surface of the sump case in which the washing water is stored is in a flat state, a problem arises in that some of the washing water does not move to the drain pump but collects on the bottom of the sump case during the draining process. Therefore, the dirty washing water remains in the sump case, which causes a problem that odors are generated inside the tub and remain unclean sanitary.

The present invention has been proposed to solve the above problems, and an object of the present invention is to provide a sump structure for allowing the wash water stored in the sump case to completely move to the drain pump.

The sump structure of the dishwasher according to the present invention for achieving the object as described above is a sump case including a drain guide groove in which the bottom surface is recessed to a predetermined depth; A sump cover seated on an upper portion of the sump case; A drain pump for discharging the washing water stored in the sump case to the outside; And a drainage motor for driving the drainage pump.

By the above configuration, all of the washing water in the sump moves to the drain pump in the drainage process and is discharged to the outside, so that the residual water does not exist in the sump, so that odors are removed and the hygiene is kept clean. .

Hereinafter, specific embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the spirit of the present invention is not limited to the embodiments presented, and other embodiments included within the scope of other inventive inventions or the scope of the present invention can be easily made by adding, changing, or deleting other elements. I can suggest.

1 is a cross-sectional view illustrating a dish washer having a sump structure according to the spirit of the present invention.

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

In addition, a washing motor 230 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. Is coupled to the water guide 14, the upper side of the sump 100, the lower nozzle 16 for spraying the washing water upward and / or downward in the washing tank, and the upper portion of the water guide 14 An upper nozzle 15 attached to 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 above the ceiling of the tub to spray the washing water vertically downward. Included.

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 10 according to the present invention.

First, the user opens the door 18 of the dishwasher 10, 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 10 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 230 is operated. Then, the impeller 150 (refer to FIG. 2) which is connected to the motor shaft of the washing motor 230 and provided in the washing pump rotates, 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 10 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.

Figure 2 is a perspective view showing the appearance of the sump according to the spirit of the present invention, Figure 3 is a vertical cross-sectional view cut along the Ι-Ι 'of FIG.

2 and 3, the sump 100 according to the present invention is located at the bottom of the sump case 190, the washing water is stored therein, and the sump cover for covering the upper surface of the sump case 190 ( 130, a midnight filter 120 seated at a predetermined height on an upper side of the sump cover 130, and a lower nozzle holder seated at a center of the midnight filter 120 and connected to a lower nozzle 16. 110, a washing motor 230 mounted to the bottom of the sump case 190 to generate rotational force, a drain pump 250 mounted to the side of the sump case 190 to discharge the washing water to the outside; Drainage motor 240 is included.

In addition, the sump 100 is mounted on the inner bottom surface of the sump case 190 and is connected to a heater 200 for heating the washing water and a motor shaft 231 of the washing motor 230 to connect the motor shaft 231. Disposer 180 for crushing the food waste while rotating together with, a pump lower 170 including a soil chamber seated on the upper surface of the sump case 190 to collect food waste, and the sump cover ( A flow guide 140 seated between the pump guide 170 and the pump lower 170, a washing pump 290 formed between the pump lower 170 and the flow guide 140 to pump the washing water, and the pump A screen filter 179 is mounted between the lower 170 and the disposer 180 to prevent food waste, which is ground by the disposer 180, from being introduced into the washing pump 290.

In detail, the screen filter 179 is a filter for forming a plurality of small holes to catch food waste, and is attached to the bottom of the pump lower 170. In addition, the washing pump 290 is seated at the center of the pump lower 170, the impeller 150 and the impeller 150 is connected to the motor shaft 231 to rotate therein, the The washing water rising by the impeller 150 is composed of a pump case 171 to rotate. In addition, a flow path for guiding the washing water pumped by the cleaning pump 290 to the upper nozzle or the lower nozzle is formed on the upper surface of the flow path guide 140.

In addition, the sump 100 is mounted on one side of the sump case 190 so as to alternately move the washing water pumped from the washing pump 290 to an upper nozzle or a lower nozzle 210 (see FIG. 4). And a turbidity sensor 220 (refer to FIG. 4) mounted at a straight distance from the variio valve 210 to measure the degree of contamination of the washing water collected in the sump 100 during the washing process.

Hereinafter will be described the operation of the sump 100 according to the present invention having the configuration as described above.

First, when the washing process starts, the washing water flows into the sump case 190 from the water supply device, and the impeller 150 rotates by operating the washing motor 230. In addition, when the impeller 150 rotates, the washing water flows into the pump case 171, and the washing water introduced into the pump case 171 is moved to the vario valve 210. In addition, the washing water moved to the vario valve 210 is moved to the water guide 14 or the upper nozzle holder 110 along the flow path moved on the upper surface of the flow path guide 140. In addition, the washing water moved to the water guide 14 or the lower nozzle holder 110 is sprayed into the tub 11 through the upper nozzle 15 and the top nozzle 17 or the lower nozzle 16. Then, the dirt on the tableware is washed off by the injection pressure of the washing water. Then, the washing water sprayed into the tub is dropped to the bottom surface of the tub (11). Then, the dropped washing water is stored in the sump case 190 again.

On the other hand, a part of the washing water moving from the washing pump 290 to the variuo valve 210 is branched and moved to the turbidity sensor 220. Then, the contaminated washing water with turbidity detected while passing through the turbidity sensor 220 is moved to the drain pump 250, and the washing water moved to the drain pump 250 is dished out by the operation of the drain motor 240. Drained out of the washer.

Figure 4 is a perspective view showing a sump case according to the spirit of the present invention, Figure 5 is a plan view of the sump case.

4 and 5, the sump case 190 according to the present invention is formed on the side of the washing water storage unit 191, the washing water storage unit 191 and the washing water storage unit 191 is supplied from the water supply source The washing water inlet 192 is included to allow the washing water to flow into the washing water storage unit 191.

In addition, the pump lower fastening boss 195 to protrude in place on the upper surface to be coupled to the pump lower 170, and the boat lower fastening boss (195) mounted on a point facing the ship to control the direction of the wash water The rio valve 210, the turbidity sensor 220 mounted at a straight distance from the variuo valve 210 to measure the degree of contamination of the wash water, and protruding at a straight distance from the variuo valve 210 are formed at midnight. Midnight filter fastening boss 197 to be coupled to the filter 120, and projected between the edge portion of the sump case 190 and the vario valve 210, penetrating the pump lower 170 to the sump A sump cover fastening boss 197a coupled to the cover 130 is included.

In addition, the sump case 190 is formed in a side position drain pump 250 for discharging the dirty water and drainage motor 240 connected to the drain pump 250 to drive the drain pump 250 And a drain pump induction pipe 193 for guiding the washing water falling from the pump lower 170 to the drain pump 250, and the wash water drained by being installed inside the drain pump induction pipe 193 and drained back. A check valve 193a is further included to prevent it.

In addition, the washing water storage unit 191 is inserted from the side of the sump case 190, the heater 200 for heating the stored washing water. In addition, the end of the heater 200 is fixed by the heater clamp 290, so that the heater 200 does not swing inside the sump case 190. In addition, a drainage motor 240 having a drainage impeller (not shown) is coupled to a front surface of the drainage pump 250. The motor shaft 231 of the cleaning motor 230 is inserted through the bottom surface of the sump case 190, and a rubber water seal 280 is mounted on the outer circumferential surface of the motor shaft 231. In detail, the sump case 190 is formed with a water sealing support sleeve 194 extending from the bottom surface to a predetermined height to allow the water sealing 280 to be inserted therein. In addition, the water sealing 280 is closely inserted into the water sealing support thrill 194, thereby preventing the washing water stored in the washing water storage unit 191 from leaking into the washing motor 230.

In addition, at least one detachment hook 196 is formed at an edge of the sump case 190 to facilitate detachment of the sump case 190 from the bottom of the tub. A portion of the outer circumferential surface of the motor shaft 231 is chamfered in the axial direction to have a non-circular cross section, and the disposer 180 is inserted into the outer circumferential surface of the motor shaft 231. Therefore, when the disposer 180 is fitted to the motor shaft 231, the disposer 180 rotates together with the motor shaft 231.

Meanwhile, the sump case 190 further includes a drain guide groove 300 in which a bottom surface of the vicinity of the drain pump 250 is located to a predetermined depth.

In detail, the drain guide groove 300 is formed lower than the bottom surface of the wash water storage unit 191 of the sump case 190, and the wash water stored in the wash water storage unit 191 of the sump case 190 in the draining process is It is easily introduced into the drain pump 250. Therefore, when the drainage is started, all of the wash water stored in the wash water storage unit 191 moves to the drain pump 250 quickly. When the drainage is completed, the remaining water does not remain in the washing water storage unit 191. Therefore, clean washing water is introduced through the washing water inlet 192 and mixing with the dirty washing water does not occur.

By the above configuration, the washing water introduced into the washing water inlet 192 is stored in the washing water storage unit 191. In addition, the wash water stored in the wash water storage unit 191 is heated to the set temperature by the heater 200. In addition, the cleaning motor 230 rotates to rotate the disposer 180 and the impeller 150. In addition, the washing water pumped by the washing pump 290 flows into the spray nozzle to be sprayed into the tub. When the washing process is completed, the draining process is started, and when the draining process is started, the dirty washing water is introduced into the drainage pump 250 through the drain guide groove 300. In addition, the washing water moved to the drain pump 250 by operating the drain motor 240 is pumped by the drain pump 250 and discharged to the outside.

By the sump structure of the dishwasher according to the present invention constituting the configuration as described above, all of the washing water in the sump is discharged to the drain pump in the drainage process, and discharged to the outside, so that there is no residual water in the sump, so bad smell It has the advantage of being removed and kept clean hygienically.

Claims (5)

A sump case including a drain guide groove having a bottom surface recessed to a predetermined depth; A sump cover seated on an upper portion of the sump case; A drain pump for discharging the washing water stored in the sump case to the outside; And The sump structure of the dishwasher, including; a drain motor for driving the drain pump. The method of claim 1, And said drain guide groove is recessed toward said drain pump. The method of claim 1, The sump structure of the dishwasher, which is formed at the inlet side of the drain pump, further includes a drain guide tube formed therein. The method of claim 3, wherein The sump structure of the dishwasher, characterized in that the movement of the washing water accumulated in the drain guide groove to the drain pump is controlled by opening and closing the check valve. The method of claim 1, The drain guide groove of the sump structure of the dishwasher, characterized in that the deeper toward the drain pump.

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