KR20100031907A - Dish washer - Google Patents

Abstract

PURPOSE: A dish washer is provided, which improves the dish washing efficiency by using the cleaning water sprayed upward and downward. CONSTITUTION: A dish washer comprises a tub, a thump, a washing pump, a lower nozzle, and an upper nozzle(30). The tub forms a space in which the dish is cleaned. The thump is arranged in the lower part of the tub and collects cleaning water. The washing pump pumps the cleaning water of the thump. The lower nozzle is arranged in the lower part of the tub and sprays cleaning water pumped by the washing pump. The upper nozzle is arranged in the upper part of the lower nozzle.

Description

Dishwasher {Dish washer}

The present invention relates to a dishwasher for washing dishes, and more particularly, to a dishwasher including a lower nozzle and an upper nozzle disposed above the lower nozzle and adjustable to spray washing water in an upward or downward direction. will be.

The dishwasher is a household appliance that cleans food residues on the surface of a dish using high pressure washing water sprayed from a spray nozzle.

In general, the dishwasher comprises a tub in which a washing tank is formed, and a sump that is mounted on the bottom of the tub to collect the washing water, and the operation of the dishwasher includes a washing stroke, a draining stroke, a rinsing stroke, a drying stroke, and the like.

In the washing stroke, the washing water stored in the sump is moved to the spray nozzle by the pumping action of the washing pump and sprayed at high pressure in the tub. In addition, the food dregs on the dishes stored in the tub are separated from the surface of the dishes by the washing water sprayed at a high pressure as described above and fall to the bottom of the tub.

In a dishwasher in which racks for storing dishes are arranged up and down in a tub, an upper nozzle is disposed between the upper rack and the lower rack to spray the washing water pumped by the washing pump upwards toward the dishes stored in the upper rack. The lower nozzle is disposed below the lower rack and sprays the washing water upwardly toward the dishes stored in the lower rack.

At this time, when the number of dishes that need to be washed is small, the dishes are stored only in the lower rack, the conventional dishwasher has a problem in that the washing efficiency is lowered by spraying unnecessary washing water in the direction of the upper rack through the upper nozzle.

The present invention, to solve the above problems by adjusting the spraying direction of the washing water sprayed through the upper nozzle disposed between the lower rack and the upper rack by using the washing water sprayed from the vertical direction of the dishes stored in the lower rack An object is to provide a dishwasher which can be intensively washed.

The objects of the present invention are not limited to the above-mentioned objects, and other objects that are not mentioned will be clearly understood by those skilled in the art from the following description.

The present invention is a tub for forming a space for washing dishes, a sump disposed under the tub to collect the washing water, a washing pump for pumping the washing water of the sump, and disposed below the tub, the washing Tableware comprising a lower nozzle for spraying the washing water pumped by the pump in an upward direction, and an upper nozzle disposed above the lower nozzle, and adjustable to spray the washing water pumped by the washing pump in an upward or downward direction. Provide a washer.

The dishwasher according to the present invention is adjustable so that the direction of the washing water sprayed through the upper nozzle is directed toward the lower rack, thereby washing the dishes stored in the lower rack with the washing water sprayed from the upper and lower directions through the upper nozzle and the lower nozzle. By doing so, there is an effect of increasing the dish washing efficiency.

In addition, when the dishwasher according to the present invention, when the dishes are stored in the lower rack, the outer surface of the dish is washed by the washing water sprayed downward through the upper nozzle, it is fixed to spray the washing water in the conventional upward direction Compared to the dishwasher having an upper nozzle, the washing power of the outer surface of the dish is improved.

In addition, the dishwasher according to the present invention does not have a separate upper nozzle for spraying the washing water in the downward direction, and selects one of two water supply units of the upper nozzle to connect the upper flow path to adjust the spraying direction of the washing water. By doing so, the washing water spraying direction of the upper nozzle can be easily adjusted.

In addition, the dishwasher according to the present invention, it is possible to adjust the injection direction by rotating the injection unit of the upper nozzle has an effect that can easily adjust the washing water injection direction of the upper nozzle.

Advantages and features of the present invention and methods for achieving them will be apparent with reference to the embodiments described below in detail with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but can be implemented in various different forms, and only the embodiments make the disclosure of the present invention complete, and the general knowledge in the art to which the present invention belongs. It is provided to fully inform the person having the scope of the invention, which is defined only by the scope of the claims. Like reference numerals refer to like elements throughout.

1 is a side cross-sectional view showing a dish washer according to an embodiment of the present invention. Referring to FIG. 1, the dishwasher includes a cabinet 1 forming an exterior, a tub 3 disposed inside the cabinet 1, and a tub 3 forming a washing tank that is a space for washing dishes, and in front of the tub 3. A door (2) disposed to open and close the washing tank, a sump (10) disposed at the center of a bottom surface of the tub (3), and the wash water is collected, and a lower part disposed in the tub (3) so as to be pulled out to the outside A rack 4 and an upper rack 5.

In addition, the dishwasher further includes a washing pump 11 for pumping the washing water stored in the sump 10 at a high pressure, and a washing motor 12 disposed at one side of the washing pump 11 to drive the washing pump 11. do.

 The wash water pumped by the washing pump 11 is guided through the water guide 25 to the lower nozzle 24 and / or the upper nozzle 30 and then sprayed into the tub 3 to lower the rack 4 and / or Or wash the dishes stored in the upper rack (5).

Meanwhile, the upper nozzle 30 is connected to the water guide 25 by the upper flow passage 26. That is, a part of the washing water pumped by the washing pump 11 and guided through the water guide 25 is guided to the upper passage 26, and then the tub (through the upper nozzle 30 connected to the upper passage 26). 3) sprayed into.

In addition, the dishwasher further includes a top nozzle 27 disposed on the ceiling of the tub 3 and spraying the washing water guided by the water guide 25 toward the upper rack 5.

In addition, the dishwasher further includes a drainage device 20 disposed on one side of the sump 10 to discharge the washing water stored in the sump 10 to the outside. Drainage device 20 may be composed of a rotary drainage pump 21 and a drainage motor 22 for driving the drainage pump 21. The drain motor 22 drives the drain pump 21 until all the washing water collected in the sump 10 is discharged to the outside in the washing stroke. However, the drainage device 20 of the present invention is not limited thereto, and various types of pumps may be applied.

In addition, the dishwasher may further include a vibration sensor 23 for detecting the vibration of the drain pump (21). The vibration sensor 23 is a device for determining whether the drainage is completed by detecting the vibration characteristic of the drainage pump 21 generated in the drainage process.

2 is a front view illustrating the upper nozzle 30 and the upper flow path 26 of the dishwasher according to the embodiment of the present invention. Referring to FIG. 2, the upper nozzle 30 is configured as a separate component and detachably coupled to the upper flow path 26. In the process of washing dishes, foreign matters such as food waste are introduced into the washing water, and the spray hole 32 to be described later formed in the upper nozzle 30 is blocked in the process of spraying the washing water through the upper nozzle 30, or A filter (not shown) separately provided in the nozzle 30 may be blocked. In this case, the user separates the upper nozzle 30 from the upper flow path 26 and performs the washing operation using water or the like.

The upper nozzle 30 may include a water supply part 33 through which the washing water flows through the upper flow path 26, an injection part 31 through which the washing water flowing into the water supply part 33 flows, and an injection part 31. A plurality of spray holes are formed on one surface of the sprayed water to be sprayed.

Referring to FIG. 2, the water supply part 33 is formed on the upper and lower surfaces of the center of the injection part 31, and one of the water supply parts 33a is engaged with the upper flow path 26 to connect the upper nozzle 30. The water supply pipe is coupled to the upper flow passage 26 and serves as a water supply pipe through which the washing water flows from the upper flow passage 26. The other water supply portion 33b counts the washing water supplied to the water supply portion 33a. It is sealed by the sealing portion 34 so as not to. At this time, the direction of the sprayed washing water is upward.

On the contrary, when the water supply part of identification number 33b is coupled to the upper flow path 26, and the water supply part of identification number 33a is sealed using the sealing part 34, the direction of the washing water sprayed becomes downward.

That is, the dishwasher according to the embodiment of the present invention selects any one of the two water supply units 33a and 33b to be combined with the upper passage 26 and the other type of stopper to prevent the washing water from leaking. The direction of the washing water sprayed by being sealed by the sealing part 34, which serves to control the water.

The two water supply parts 33a and 33b are preferably formed to the same size so as to be combined with the upper flow path 26 or the sealing part 34, respectively. That is, each of the water supply portions 33a and 33b can be combined with either the upper flow passage 26 or the sealing portion 34.

Looking more specifically at the dishwashing using the upper nozzle 30, when the water supply portion of the identification number 33a is combined with the upper passage 26, the injection hole 32 of the upper nozzle 30 is the upper nozzle ( The washing water is sprayed toward the upper rack 5 disposed above 30. That is, in a state where dishes are accommodated in the upper rack 5 and the lower rack 4, the upper nozzle 30 sprays the washing water toward the upper rack 5, and the lower nozzle 24 opens the lower rack 4. By spraying the washing water toward the tableware stored in the upper rack (5) and the lower rack (4) is simultaneously washed.

On the other hand, if the amount of dishes to be washed is small, the user stores the dishes in the lower rack (4), the upper nozzle 30 so that the washing water spray direction of the upper nozzle 30 toward the lower rack (4). ) Is inserted into the upper flow path (26). That is, contrary to the arrangement of the upper nozzle 30 shown in FIG. 2, the water supply portion of the identification number 33b is coupled with the upper flow passage 26 so that the injection hole 32 faces downward, and the water supply portion of the identification number 33a is provided. It is closed by a seal 34.

As described above, when the washing water spraying direction of the upper nozzle 30 is directed to the lower rack 4, the dishes stored in the lower rack 4 are washed water sprayed from the lower side through the lower nozzle 24 and the upper nozzle ( Intensive washing by washing water sprayed from the upper side through 30) improves the washing efficiency.

That is, the dishwasher of the present invention can select the direction of the washing water sprayed through the upper nozzle 30 by changing the coupling form of the upper nozzle 30 and the upper flow path 26, thereby preventing the use of the upper nozzle 30. When the dishes are not stored in the upper rack 5, the washing water is not sprayed in an unnecessary direction, thereby improving utilization of the washing water and dish washing power.

In particular, the conventional dishwasher is fixed so that the spraying direction of the upper nozzle 30 toward the upper rack (5), when washing the dish spilled on the lower rack (4), the inner surface of the dish is a lower nozzle Although washing is performed by the washing water sprayed from the 24, the outer surface of the dish is sprayed upward toward the upper rack 5 by washing water sprayed from the upper nozzle 30 to wash the dishes stored in the upper rack 5. After the fall again to wash the dishes stored in the lower rack (4), there was a problem that the water pressure is weak to wash the contaminants, such as food waste on the outer surface of the dishes. Therefore, there is a problem that unnecessary power consumption occurs such as increasing the rotation speed of the washing motor 22, spraying the washing water with a stronger water pressure, or increasing the time for washing dishes.

The dishwasher according to the present invention adjusts the spraying direction of the upper nozzle 30 toward the lower rack 4, thereby washing the dishes stored in the lower rack 4, directly from the lower nozzle 30 Since the washing water is sprayed toward 4), the utensils stored in the lower rack 4 can be washed with strong water pressure, and the ability to wash the outer surface of the utensils lying on the lower rack 4 is improved.

On the other hand, rather than being firmly coupled by fasteners such as screws, the upper nozzle 30 and the upper flow path 26 is fitted to be easily separated and coupled by applying a certain amount of force to be easily removable by the user. It is preferable to be. In general, since the spray nozzles are often plastic injection molding products in the dishwasher, the spray nozzles can be easily fitted using a predetermined pulling tendency that occurs due to the properties of the plastic.

The upper nozzle 30 may be coupled to the upper flow path 26 by turning. The upper nozzle 30 may be installed to rotate and spray the washing water while being coupled to the upper flow passage 26. In this case, the coupling of the upper nozzle 30 and the upper flow passage 26 may be performed by the upper nozzle 30. It is preferable to rotate in the opposite direction to the rotational direction to engage. This is to prevent the coupling of the upper nozzle 30 and the upper flow path 26 to be loose when the upper nozzle 30 is rotated.

On the other hand, the sealing portion 34 is preferably connected to the upper nozzle 30 or the upper flow path 26 by a connecting member (not shown ) such as a chain or a string in order to prevent loss.

3 is a front view illustrating the upper nozzle 40 and the upper flow path 26 of the dish washing machine according to another embodiment of the present invention. Referring to FIG. 3, the upper nozzle 40 may be configured as a separate component and detachably coupled to the upper flow path 26.

The upper nozzle 40 includes a water supply part 43 that forms a part which is coupled with the upper flow path 26 while the washing water flows through the upper flow path 26. That is, the water supply unit 43 couples the upper nozzle 40 and the upper flow path 26 to communicate with each other, and branches the washing water introduced from the upper flow path 26 in both left and right directions to the injection part 41. do.

The injection part 41 includes a plurality of injection holes 42 for spraying the washing water into the tub 3, and is rotatably coupled to both left and right sides of the water supply part 43. That is, the injection part 41 rotates in a state coupled to both sides of the water supply part 43 to adjust the direction of the washing water injected through the injection hole 42 of the injection part 41.

When the amount of dishes desired to be washed is small, the user stores the dishes in the lower rack 4, and then rotates the spray part 42 of the upper nozzle 40 so that the spraying direction of the washing water is directed toward the lower rack 4. Adjust to

As described above, when the spraying direction of the washing water through the upper nozzle 40 is toward the lower rack 4, the dishes stored in the lower rack 4 are the washing water and the upper nozzle sprayed from the lower side through the lower nozzle 24 Intensive washing is performed by the washing water sprayed from the upper side through 40 to improve the washing efficiency.

The dishwasher according to another embodiment of the present invention may select the direction of the washing water sprayed through the upper nozzle 40 by rotating the spray unit 42 of the upper nozzle 40, and stored in the lower rack 4. The upper nozzle 40 may be used together to intensively wash the dishes, and the washing water may be prevented from being sprayed in an unnecessary direction, thereby improving utilization of the washing water and washing efficiency of the dishes.

On the other hand, the dishwasher according to another embodiment of the present invention, by including an upper nozzle 40 having a spraying portion 41 that rotates so as to freely change the spraying direction of the washing water, the upper nozzle 40 Since the upper nozzle 40 does not have to be separated from the upper flow path 26 in order to change the spraying direction, the user convenience is increased and the operation is easy.

In particular, the upper nozzle 40 may be configured to spray the washing water while rotating in a state coupled to the upper flow path 26, in which case the user is any of the injection portion 41 provided on both sides of the upper nozzle 40 One rotates the dishwashing water toward the upper rack 5, and the other rotates the spraying water toward the lower rack 4 to adjust the spraying direction of the washing water in various ways. Can be washed

It will be apparent that the method of rotatably coupling the injection portion 41 to the water supply portion 43 may be implemented in various ways by those skilled in the art.

 As mentioned above, although this invention was demonstrated in detail using the preferable Example, the scope of the present invention is not limited to a specific Example, Comprising: It should be interpreted by the attached Claim. In addition, those skilled in the art should understand that many modifications and variations are possible without departing from the scope of the present invention.

1 is a side cross-sectional view showing a dish washer according to one embodiment of the present invention.

2 is a front view illustrating an upper nozzle and an upper flow path of the dish washing machine according to one embodiment of the present invention.

3 is a front view illustrating an upper nozzle and an upper flow path of a dish washing machine according to another embodiment of the present invention.

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

3: tub 4: lower rack

5: upper rack 10: sump

11: washing pump 12: washing motor

24: lower nozzle 26: upper flow path

30: upper nozzle 31: injection part

32: injection hole 33: water supply

34: Hermetic part

Claims (8)

Tub to form a space for washing dishes; A sump disposed under the tub to collect wash water; A washing pump for pumping the washing water of the sump; A lower nozzle disposed below the tub and spraying the washing water pumped by the washing pump in an upward direction; And And an upper nozzle disposed above the lower nozzle and adjustable to spray the washing water pumped by the washing pump in an upward or downward direction. The method of claim 1, The upper nozzle, An injection unit in which a plurality of injection holes are formed; A plurality of water supply units disposed above and below the spray unit; And Dishwasher comprising a sealing unit for sealing any one of the plurality of water supply. The method of claim 2, And an upper flow path through which the washing water pumped by the washing pump flows, The upper flow path, In combination with any one of the plurality of water supply of the upper nozzle, The sealing part, Dishwasher for sealing another one of the plurality of water supply of the upper nozzle. The method of claim 2, The sealing part, Dishwasher connected to the upper flow path by a connecting member. The method of claim 2, The sealing part, Dishwasher connected to the upper nozzle by a connecting member. The method of claim 1, The upper nozzle, A water supply unit into which the washing water pumped from the washing pump is introduced; And A plurality of spray holes are formed, dishwasher comprising a spray unit rotatably coupled to the water supply. The method of claim 6, The injection unit, Dishwasher provided on each side of the water supply. The method of claim 1, And a lower rack disposed between the lower nozzle and the upper nozzle.

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