KR101791357B1 - Dishwasher - Google Patents

Abstract

At least one spraying portion arranged to spray the use water of one or more of the use water tanks to the tableware, respectively, and at least one spraying portion And an overflow unit installed in at least one of the one or more use water tanks. The overflow unit includes an overflow pipe arranged to discharge the water at the bottom of the service water tank, thereby discharging the deposit. The overflow pipe is connected to a drain valve in a socket portion provided as a drain means and has an inflow hole at the bottom for overflowing the number of used tanks.

Description

Dishwasher {DISHWASHER}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dishwasher field, and more particularly, to a used water storage device and a dishwasher including the same, in which cleanliness of received water is improved.

Dishwashers have been developed and used to automatically perform washing dishes. Generally, the dishwasher performs cleaning of dishes by strongly spraying wash water and / or rinse water by using a nozzle while a tableware is placed on a shelf or a rack. Such a dishwasher has been developed for both home use and commercial use, but it is almost indispensable in shops where a large amount of tableware is used.

Normally, the dishwasher sequentially rinses the washing nozzle and the rinsing nozzle in a state in which the tableware having been subjected to the avalanche cleaning is arranged on the shelf, thereby performing washing and rinsing. The water used for washing and rinsing can be continuously washed by maintaining a certain amount of water in the washing water tank and the rinse water tank, respectively.

A door for forming the chamber in which the washing water and the rinsing water are sprayed is provided to cover the shelf, the spray nozzle, the upper portion of the water tank, and the like, so that the water used for spraying does not leak to the outside. The washing water tank is provided with a net so that the washing water or rinse water used in the washing or rinsing process flows into the washing water tank to be reused. Of course, the wash water contained in the wash water tank is periodically discharged to maintain clean water quality.

Use water tanks are supplied with ground water or tap water and use a certain amount of water stored. In particular, the rinse water of the rinse water tank maintains cleanliness by continuously or periodically overflowing, since relatively clean usage water must be used.

However, although the conventional dishwashers must maintain the rinsing water or the used water contained in the rinsing water tank in a very clean state, there is a problem that impurities are generated after a certain period of time. The mechanism for overflowing the used water accommodated in the rinse water tank is adopted as described above, but the lower sediments are difficult to overflow and thus remain as they are and the water quality is lowered. These sediments accumulate on the scale, which is often generated in the groundwater, and accumulate on pumps and piping for rinse water ejection to cause clogging.

Korean Patent Application 10-2006-0138987

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems of the prior art, and provides a used water storage device capable of increasing the cleanliness of accommodated water.

The present invention also provides a dishwasher including the improved use water storage device described above.

The present invention provides a use water storage device for a dishwasher, comprising: a cylinder having an opening in its upper portion and having a storage space capable of receiving used water; A lid part which is openably and closably arranged to close the opening part; And an overflow pipe having one end disposed in the storage space of the cylinder and the other end disposed on the outside of the cylinder to overflow the usage water accommodated in the storage space of the cylinder, Is disposed below the intermediate height of the storage space.

The lid part may provide a through hole through which the overflow pipe is inserted.

The overflow pipe includes a socket portion into which the one end portion of the overflow pipe is inserted, and a portion of the one end portion is inserted into the socket portion. The overflow pipe has a non- The inlet pipe may have one or more inlet holes through which the use water of the storage space flows into the pipe.

And a drain valve mounted to the socket portion from the outside of the cylinder.

The overflow pipe is provided with a pushing blade to press the upper surface of the lid unit.

The overflow pipe and the drain valve may be coupled to the socket portion in a threaded manner.

The overflow pipe may further include a first air hole disposed at a top portion of the storage space and a second air hole disposed at a portion located outside the cylinder.

The present invention also provides a dishwasher comprising: a body portion; A shelf disposed on the main body to support the tableware; At least one use water tank in which the use water is received; At least one jetting portion arranged to jet the used water of the at least one use water tank to the tableware, respectively; And at least one of said at least one use water tank may be the usage water storage device of any one of claims 1 to 7.

The at least one use water tank may include a wash water tank and a rinse water tank, and the use water storage device may be applied to the rinse water tank.

The rinse water tank receives and stores the used water from the outside, and the rinse water tank includes a filtering means disposed at an upper portion of the rinse water tank for overflowing from the rinse water tank, and after the rinsing operation or the washing operation, And may be to receive and store the input usage water.

According to the present invention, the cleanliness of the used water used for washing dishes can be kept high. In particular, by overflowing the rinse water from the bottom of the rinse water tank, it becomes possible to effectively remove the precipitate from the stored rinse water. This can prevent piping or clogging of the pump due to the sediment, thereby preventing failure of the main components of the apparatus. Furthermore, the lid portion of the rinse water tank is tightly attached to the cylinder using a pressing operation using an overflow pipe. This configuration not only facilitates detachment and attachment of the lid part but also simplifies the elements of the device.

1 is a perspective view schematically showing a dishwasher according to a preferred embodiment of the present invention.
2 is a sectional view taken along the line AA 'of the dishwasher of FIG. 1;
3 is a plan view of a portion of the interior of the dishwasher according to an embodiment of the present invention.
4 is a cross-sectional view taken along line BB 'of the dishwasher of FIG. 3;
5 is a perspective view showing a usage water storage device according to a preferred embodiment of the present invention.
Fig. 6 is a plan view of Fig. 5. Fig.
7A and 7B are cross-sectional views taken along line CC 'in FIG.
Fig. 8 is an enlarged view of a part of Fig. 7A.
9A to 9C are views showing an overflow pipe employed in the usage water storage device of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the embodiments of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view of a dishwasher according to a first embodiment of the present invention; FIG. 2 is a perspective view of a dishwasher in accordance with a first embodiment of the present invention; This makes it possible to maintain a high degree of cleanliness of the rinsing water which is relatively clean, such as rinsing water, and suppress the deposition of sediment in the pipe or the pump. Further, a configuration is adopted in which the lid portion is brought into close contact with the cylinder by a pressing method using an overflow pipe mounted on the used water storage device. Therefore, the attachment and detachment of the lid part is very easy, and the elements for the close fit of the lid part can be simplified.

The present invention provides a used water storage device for a dishwasher and a dishwasher including the same, as described above. Hereinafter, the used water storage device will be described first. Such a usage water storage device can be preferably applied to, for example, a rinse water tank in a dishwasher, but is not limited thereto and can be applied to other usage water storage devices such as a washing water tank.

First, the dishwasher will be described.

<Dish Washer>

1 is a perspective view illustrating a dishwasher according to a preferred embodiment of the present invention. 2 is a sectional view taken along line A-A 'of the dishwasher of FIG. 3 is a plan view of a portion of the interior of the dishwasher according to an embodiment of the present invention. 4 is a cross-sectional view taken along line B-B 'of the dishwasher of FIG. In the following drawings, several elements are omitted for the convenience of understanding.

The dishwasher according to a preferred embodiment of the present invention includes a main body 10 and a shelf 20 supported by the main body 10 and at least one usable water tank 31, And at least one jetting section 41, 42 arranged to jet the used water of one or more of the use water tanks 31, 32 to the tableware, respectively. And a door portion 60 which can be opened and closed to form a chamber in which washing and rinsing by spraying are formed.

In particular, the dishwasher of the present invention includes an overflow unit installed in at least one of the one or more service water tanks 31, 32, The overflow tube 323, which is arranged to discharge, can be used to easily discharge sediments that may be present at the bottom of the tank.

The dishwasher of the present invention provides an improved configuration of the usage water storage device in which the overflow pipe 323 is employed, which can be suitably applied to, for example, a rinse water tank.

Describing the dishwasher more specifically, the main body 10 may include a frame, a plate, or the like as an element for receiving or supporting the components of the dishwasher. For example, the body portion 10 supports the shelf portion 20 and also supports the cover portion or the door portion 60 as in the illustrated example.

The door portion 60 is movable between an open position and a closed position through a mechanical mechanism. When the door portion 60 is in the closed position, the door portion 60 is closed so that the water sprayed from the jetting portions 41 and 42 is not leaked to the outside in a state including the shelf portion 20, the jetting portions 41 and 42, Thereby forming a chamber.

In addition, as in the illustrated example, one or more use water tanks 31, 32 are disposed in the main body portion 10. Therefore, when the door portion 60 is closed, the upper portions of the use water tanks 31 and 32 are positioned in the door portion 60. [ This configuration allows the use water jetted from the jetting sections 41 and 42 to be dropped into any one of the use water tanks 31 and 32 to be recycled. In the illustrated example, the water used for injection is introduced into the washing water tank 31 and can be recycled as washing water.

As shown in the drawings, the dishwasher according to the present invention separates and injects wash water and rinse water separately, and separately stores wash water and rinse water into the wash water tank 31 and the rinse water tank 32, respectively.

The one or more jetting sections 41 and 42 include a washing water nozzle section 41 and a rinse water nozzle section 42. The washing water tank 31 and the rinse water tank 32 are connected to each other by a washing water To the dishes arranged on the shelf 20, respectively. Generally, the washing water is sprayed first, and then the rinse water is sprayed.

Components such as pumps 35 and 45, piping, power supply, wiring, valves and control elements are accommodated in the main body 10 in addition to the use water tanks 31 and 32.

The rinsing water tank 32 and the washing water tank 31 are filled with the use water such as ground water or tap water from the outside, and a predetermined amount is received in the tank. To this end, after the use water supply pipe 33 is connected to the rinse water tank 32 to fill the rinse water tank 32, the washing water tank 31 is filled with the use water overflowing from the rinse water tank 32 .

When the water level sensor 35 is disposed in the rinsing water tank 32 and the washing water tank 31 and the water level is below a predetermined level, the water is supplied to the rinsing water tank 32 under the control of a control element , And if necessary, overflows to the wash water tank 31 to fill the wash water tank. The overflow of the rinse water tank 32 is used to fill the rinse water tank 31 when the initial tanks 31 and 32 are filled or the rinse water tank 31 is empty after the routine as described below, Once the washing water tank 31 is filled up, the washing water tank 31 is filled by collecting the used water falling down after being used in the washing and rinsing operations into the washing water tank 31. A solenoid valve 34 may be employed for controlling the supply of water.

An overflow unit is disposed in the rinse water tank 32 so that the number of uses of the rinse water tank 32 overflows to the outside. (Rinsing water) overflowing from the rinsing water tank 32 can be introduced into the washing water tank 31, for example, and recycled. A heater 327 is also disposed in the rinse water tank 32 to heat the water used as rinse water to a predetermined temperature. In this rinse water tank 32, the configuration of the improved usage water storage device of the present invention can be applied, which will be described in more detail below.

3, a filtering means such as a mesh net 312 is disposed on the upper portion of the washing water tank 31 so that the used water used for washing and rinsing spray and the rinsing water overflowed from the rinsing water tank 32 are filtered And may be introduced into the wash water tank 31.

4, draining means 311 and 325 are disposed in the washing water tank 31 and the rinse water tank 32, respectively, so that the used water can be discharged after a predetermined period of use. Particularly, the drainage means disposed in the rinse water tank 32 is applied with a socket portion 325 to serve as drainage, fixing and support of the overflow pipe 323, and the like.

2 and 4, the dishwasher of the present invention overflows the used water from the bottom of the rinse water tank 32, and the overflow unit, which is disposed in the rinse water tank 32, . The overflow pipe 323 discharges the material settled at the bottom of the rinse water tank 32 to the outside and can be introduced into the washing water tank 31 after being filtered by the mesh net 312 and used as the washing water. In FIG. 4, reference numeral 314 denotes a bar size drain cap. As described above, the improved usage water storage device of the present invention can be preferably applied to such a rinse water tank 32, which will be specifically described below.

The jetting portions 41 and 42 include a washing water nozzle portion 41 and a rinse water nozzle portion 42 as described above. Each of the nozzle units 41 and 42 can be rotatably installed and each nozzle pipe is connected to the rinse water tank 31 and the rinse water tank 32 so that the rinse water or the rinse water Respectively.

When the first rinse water tank 32 and the rinse water tank 31 are filled with the used water or when the rinse water tank 31 is empty for cleaning after the routine is completed, The rinse water tank 32 is filled, and the overflow water is filled into the wash water tank 31 through the overflow pipe 323.

In the cleaning step, the rinsing water tank 32 and the rinsing water tank 31 are both filled, and the rinsing water in the rinsing water tank 31 is sprayed onto the tableware by the operation of the pump first. The washing water used for spraying is dropped and flows into the washing water tank 31 through the mesh net 312 which is a filtering means disposed above the washing water tank 31.

After the washing step is finished, the rinsing water in the rinsing water tank 32 is sprayed onto the tableware to rinse the tableware. Similarly, the used rinsing water falls and flows into the washing water tank 31.

During use, the level of the rinse water tank 32 and the rinse water tank 31 is sensed and controlled by the level sensor 35. Normally, the rinse water tank 32 receives the use water from the outside, 31 are supplied and filled through the mesh net 312, which is the washing water or the rinse water after being used.

<Tableware Storage>

5 is a perspective view showing a usage water storage device according to a preferred embodiment of the present invention. Fig. 6 is a plan view of Fig. 5. Fig. 7A and 7B are cross-sectional views taken along line C-C 'of FIG. Fig. 8 is an enlarged view of a part of Fig. 7A. 9A to 9C are views showing an overflow pipe employed in the usage water storage device of the present invention.

For reference, the usage water storage device can be preferably applied to the above-described dishwasher, and thus the same reference numerals applied to the rinse water tank 32 can be applied for the sake of understanding.

The dishwasher storage device 32 of the present invention includes a tubular body 321 having an opening at the upper portion thereof, a lid portion 322 which is openably and closably coupled to the tubular body 321 so as to close the opening portion, And an overflow pipe (323) installed to overflow to the outside.

The tubular body 321 has a storage space for accommodating / storing the used water therein, and a lid part 322 is disposed in the opening part. The tubular body 321 is connected to a use water supply pipe 33 to be filled with water for use such as ground water or tap water (see FIGS. 2 and 4). As described above, the water level sensor 35 is installed in the cylindrical body 321 to sense the water level down to a predetermined level or less, and the control unit controls the supply mechanism to supply the used water to the storage space.

The lid part 322 is openably and closably connected to the cylinder 321 to seal the opening of the cylinder 321. The lid portion 322 is brought into close contact with the cylindrical body 321 by a pressing operation by the overflow pipe 323 when the overflow pipe 323 is engaged, Respectively. Preferably, a sealing member 324 is disposed between the lid portion 322 and the cylinder 321 to maintain airtightness. To this end, the lid 322 provides a through-hole through which the overflow tube 323 is inserted.

A socket portion 325 is provided on the bottom surface of the inside of the cylindrical body 321. The socket portion 325 serves as a drain hole while providing a hole into which the overflow pipe 323 can be inserted. A drain valve 326 is disposed in the socket portion 325 from the outside of the cylinder 321 to open and close the drain port. More preferably, the drain valve 326 and the overflow pipe 323 are screwed to the socket portion 325, respectively. That is, the overflow pipe 323 is engaged with the upper portion of the socket portion 325, and the drain valve 326 is engaged with the lower portion of the socket portion 325. The overflow pipe 323 is coupled with the socket 325 and presses the lid part 322 downward using the pushing blade 3234 so that the lid part 322 is brought into close contact with the cylindrical body 321. Further, a valve cock is disposed in the drain valve 326 to control the opening and closing of the valve.

The overflow tube 323 is tubular, having one end 3231 and the other end 3232, as best seen in Figs. 9A-9C. One end portion 3231 of the overflow pipe 323 is inserted into the inside of the cylinder 321 through the through hole provided in the lid portion 322, that is, into the storage space. Preferably, one end 3231 of the overflow pipe 323 is located at a lower level to reach the middle of the storage level. More preferably, the overflow pipe 323 may have at least one inflow hole 3233 through which the use water of the storage space flows into the tube at a side of the non-insertion site near the one end.

7A and 7B, this overflow pipe 323 is engaged with the drain valve 326 while being inserted into the socket portion 325. As shown in FIG. Various coupling methods may be employed, but for example, a screw coupling method may be adopted so that the one end portion of the overflow pipe 323 and the drain valve 326 can be screwed into each other. FIG. 7A shows a state in which the overflow pipe 323 and the drain valve 326 are combined, and FIG. 7B shows the separated state. 5 also shows a state in which the overflow pipe 323 and the drain valve 326 are not engaged and separated.

A pushing vane 3234 is provided on the outer circumference of the upper portion of the overflow pipe 323 so that the pushing vane 3234 presses the upper surface of the lid 322 when the drain valve 326 is engaged. A washer or sealing member 328 may be disposed between the pushing vane 3234 and the lid 322.

The overflow pipe 323 may further include a first air hole 3235 and a second air hole 3236.

The first air hole 3235 is formed in the overflow pipe 323 so that the overflow pipe 323 is positioned inside the cylinder 321 when the drain valve 326 is engaged with the drain valve 326. The first air hole 3235 is a hole for injecting air into the rinsing water tank 32 or the water storage device 32 when the rinsing water is sprayed. The first air hole 3235 is disposed at a higher position than the rinsing water tank 32 or the water level sensor 35 of the used water storage device 32 so as to supply air into the tank at the time of the spray operation, . When the first air hole 3235 is not provided, the air flows in through the overflow pipe 323 during the rinsing water injection operation, so that the inflow hole of the rinsing water formed in the one end 3231 of the overflow pipe 323, The rinsing water may be discharged into the rinsing water through the rinsing pump 3233. However, bubbles are generated in the rinsing water, resulting in a problem that the sediment or the like is excessively floated and floated.

Preferably, the first air hole 3235 may be smaller in diameter than the inflow hole 3233. This configuration can be used for both the lower inflow hole 3233 and the first air hole 3235 when the overflow pipe 323 overflows the water used in the rinsing water tank 32 to the wash water tank 31 And the inflow hole 3233 is relatively large, so that the amount of the lower portion of the inflow hole 3233 is increased to overflow the lower portion of the sediment. Of course, the first air holes 3235 also overflow the upper floats together with the used water.

The second air hole 3236 is disposed in the overflow pipe 323 located outside the cylinder 321. The second air hole 3236 functions to allow the outside air to flow into the device or the tank 32 in the injection operation or the overflow operation. Particularly, since the upper portion of the overflow pipe 323 is folded down and the second air hole 3236 is directed downward, the overflow pipe 3236 is prevented from overflowing from the end of the pipe to the used water on the rinsing water tank during the overflow operation, A second air hole 3236 is required in order to suppress the backflow of the usage water to the rinsing water tank 32. In this case, Preferably, the second air holes 3236 are disposed below the folded portions so that the used water dropped in the spraying operation can be prevented from flowing.

Hereinafter, the operation will be described in which the use water storage device is applied to the rinse water tank 32, for example.

As described briefly above, when the rinse water tank 32 and the rinse water tank are filled with the working water for the first time, or the rinse water tank 32 is filled with the water after the rinse water tank is emptied, The washing water tank 31 is filled with the water.

In the cleaning operation or the rinsing operation, the washing water or the rinsing water dropped after the injection is introduced into the washing water tank 31 through the mesh net 312, which is a filtering means disposed on the washing water tank 31, to fill the washing water tank 31 .

The use water that is sprayed during the rinsing operation and decreases in the rinsing water tank 32 is supplied with the ground water or tap water from the outside through the water supply pipe 33 to be maintained at the height of the water level sensor 35.

After a predetermined period of time as usual, the cap 314 of the washing water tank 31 is removed to empty the washing water tank 31 and perform cleaning.

The use water storage device of the present invention, which is applied to the rinse water tank 32 as described above, for example, does not deposit fine naturally occurring precipitates such as scales in the rinse water tank 32, The rinse water tank 32 can be maintained in a very clean state by allowing the overflow discharge to be made through the hole 3233. [ Therefore, the tableware can be cleaned more cleanly, and the problem of clogging of the nozzle tube or the like does not occur. In addition, the first and second air holes 3235 and 3236 are disposed at appropriate positions, so that injection and overflow can be smoothly performed without causing bubbles or the like. When the lid portion 322 of the rinse water tank 32 is coupled to the tubular body 321 by using the pushing vane 3234 when the overflow pipe 323 is coupled to the lid 322, It is not only convenient for maintenance, but also offers the advantage of simplifying parts for combination. The drain valve 326 is coupled with the overflow pipe 323 to support the overflow pipe 323 and to make the lid 322 closely contact the drain valve 326. The drain valve 326 is coupled to the rinse water tank 32 can be cleaned or repaired.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments.

10: main body part 20: shelf part
31: wash water tank 32: rinse water tank
33: Used water supply pipe 34: Solenoid valve
35, 45: pump 311: drainage means
314: Stopper 321:
322: lid part 323: overflow pipe
324, 328: sealing member 325:
326: drain valve 327: heater
3231: one end portion 3232: the other end portion
3233: inflow hole 3234: pushing blade
3235: first air hole 3236: second air hole
41: wash water nozzle part 42: rinse water nozzle part

Claims (10)

As a dishwasher:
A body portion;
A shelf disposed on the main body to support the tableware;
At least one use water tank including a wash water tank and a rinse water tank; And
And one or more jetting portions arranged to jet the used water of the at least one service water tank to the tableware, respectively,
The rinse water tank receives and stores the used water from the outside, and the rinse water tank includes a filtering means disposed at an upper portion of the rinse water tank for overflowing from the rinse water tank, and after the rinsing operation or the washing operation, And supplies and stores the used water,
The rinse water tank comprising: a cylinder having an opening at an upper portion thereof and having a storage space capable of receiving used water; A lid part which is openably and closably arranged to close the opening part; And an overflow pipe having one end disposed in the storage space of the cylinder and the other end disposed on the outside of the cylinder to overflow the used water accommodated in the storage space of the cylinder, And wherein the additional portion is disposed below the middle height of the storage space.
The method according to claim 1,
And the lid part provides a through hole through which the overflow pipe is inserted.
The method of claim 2,
The tubular body has a socket portion on the bottom surface of which the one end portion of the overflow tube can be inserted,
Wherein the overflow pipe has a portion of the one end inserted into the socket portion,
Wherein the overflow pipe has at least one inflow hole into which the use water of the storage space flows into the side of a side of the non-insertion area close to the one end.
The method of claim 3,
Further comprising a drain valve mounted to the socket section on the outside of the tubular body.
The method of claim 4,
The overflow pipe is provided with a pushing blade,
And presses the upper surface of the lid part.
The method of claim 5,
Wherein the overflow tube and the drain valve are coupled to the socket portion in a threaded manner, respectively.
The method of claim 3,
Wherein the overflow pipe further comprises a first air hole disposed at an upper portion of a portion located in the storage space and a second air hole disposed at a portion located outside the cylinder. delete delete delete

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