KR20220102479A - Dishwasher and control method thereof - Google Patents

Abstract

Disclosed are a dishwasher and a controlling method therefor. The dishwasher of the present invention comprises: a tub configured to allow dishes to be washed; a sump that is disposed at the bottom of the tub and in which a space for storing washing water is formed; a water softening unit that is connected to the sump and supplies softened water to the sump; and a vibration-generating unit that is installed in the sump and evaporates the softened water supplied to the sump by generating vibration.

Description

Dishwasher and its control method

The present invention relates to a dishwasher and a control method therefor, and more particularly, to a dishwasher capable of removing residual water and a control method therefor.

BACKGROUND ART In general, a dishwasher is a device for washing stored dishes by spraying washing water at a high pressure, and then drying them. Specifically, the dishwasher operates so that washing water is sprayed at a high pressure into the tub in which the dishes are accommodated, and the sprayed washing water comes into contact with the dishes to wash foreign substances such as food waste on the surface of the dishes.

A dishwasher generally includes a tub forming a washing chamber and a sump mounted on the bottom of the tub to store washing water.

Then, the washing water is moved to the jet nozzle by the pumping action of the washing pump mounted inside the sump, and the washing water moved to the jet nozzle is injected at high pressure through the jet port formed in the jet nozzle.

Then, the washing water sprayed at high pressure collides with the surface of the washing target, and the dirt on the washing target falls to the bottom of the tub.

Such a dishwasher is configured to filter food residues contained in the washing water by a filter, recycle the used washing water, and release detergent to the washing water, so that the food residues can be smoothly separated.

However, conventional dishwashers have a problem in that residual water remains in the sump even after washing is completed.

In addition, there is a problem in that the smell of food waste remains inside the tub for washing dishes.

Background art of the present invention is disclosed in Korean Patent Application Laid-Open No. 2004-0003361 (published on January 13, 2004, title of invention: Deodorizing device for dishwasher).

SUMMARY OF THE INVENTION It is an object of the present invention to provide a dishwasher for removing residual water remaining in a sump after washing of dishes is completed.

Another object of the present invention is to provide a dishwasher for removing the smell of food waste remaining inside a tub.

The objects of the present invention are not limited to the above-mentioned objects, and other objects and advantages of the present invention not mentioned may be understood by the following description, and will be more clearly understood by the examples of the present invention. It will also be readily apparent that the objects and advantages of the present invention may be realized by the means and combinations thereof indicated in the appended claims.

The dishwasher according to the present invention is characterized in that the residual water remaining in the sump is removed after washing the dishes is completed.

Specifically, after the dish washing is finished, the vibration generating unit installed below the sump is operated to evaporate the remaining water in the sump, so that the remaining water in the sump can be removed.

In addition, the dishwasher according to the present invention is characterized in that it removes the smell of food waste remaining inside the tub.

Specifically, the vibration generator mounted on the sump operates to generate water vapor containing the deodorant, so that the odor remaining inside the tub can be removed. odor can be removed.

A dishwasher according to an embodiment of the present invention is installed in a tub for washing dishes, a sump disposed below the tub and forming a space for storing washing water, and the sump to generate vibration to remove the washing water remaining in the sump. It may include a vibration generator for evaporating.

In addition, the sump includes a connecting body having an open upper side connected to the lower side of the tub and allowing the inflow of washing water inside the tub, and a water collecting unit and collecting unit extending to the lower side of the connecting body to form a concave groove and storing and moving washing water. It is connected to the lower side of the water part and may include a discharge pipe part connected to a drain pump or a drain pipe.

In addition, the vibration generating unit may be installed in the water collecting unit or the discharge pipe unit.

In addition, the vibration generating unit is installed on the lower side of the discharge pipe, and the operation may be performed after washing of the dishes is completed.

A dish washing machine according to an embodiment of the present invention includes a tub for washing dishes, a sump disposed below the tub and forming a space for storing washing water, a softening unit connected to the sump and supplying soft water to the sump, and the sump It is installed on the sump and includes a vibration generator that generates vibration to evaporate the softened water supplied to the sump.

In addition, salt including incense is supplied to the softening unit.

In addition, the sump includes a connecting body having an upper side connected to the lower side of the tub that is opened and through which washing water flows inside the tub, and a water collecting unit and a water collecting unit extending to the lower side of the connecting body to form a concave groove and storing washing water. It is connected to the lower side and may include a discharge pipe part connected to a drain pump or a drain pipe.

In addition, the vibration generating unit is installed on the lower side of the discharge pipe part, and the operation can be performed after the soft water is supplied from the soft water softening unit to the sump.

A method for controlling a dishwasher according to an embodiment of the present invention includes the steps of supplying salt including a deodorant to a soft water softening unit, supplying soft water from the soft water softening unit to a sump, and a vibration generating unit mounted on the sump is first operated. The steps of generating water vapor containing the deodorant, washing and drying the dishes after the primary operation of the vibration generating unit is performed, opening the door after drying of the dishes is completed, and the vibration generating unit are operated secondary It may include removing residual water in the sump.

In addition, as the deodorant, salt containing an aromatic fragrance may be used.

In addition, in the step of removing the residual water in the sump, the vibration generating unit may be installed below the sump.

In addition, in the stage of washing the dishes, soft water containing the deodorant may be used to wash the dishes.

In the dish washing machine and the control method thereof according to the present invention, the residual water remaining in the sump is removed after the dish washing is completed by the operation of the vibration generating unit, thereby preventing the propagation of bacteria including mold.

In addition, in the dishwasher and its control method according to the present invention, since the vibration generating unit mounted on the sump is operated to generate water vapor including the deodorant, the odor remaining in the tub can be quickly removed, and the humidity inside the tub is increased. It can improve the washing power of dishes.

In addition to the above-described effects, the specific effects of the present invention will be described together while describing specific details for carrying out the invention below.

1 is a schematic cross-sectional view of a dishwasher according to an embodiment of the present invention.
2 is a plan view illustrating a state in which a soft water unit is connected to a sump according to an embodiment of the present invention.
3 is a perspective view illustrating a state in which a washing pump is connected to a sump of a dishwasher according to an exemplary embodiment.
4 is a perspective view illustrating a sump according to an embodiment of the present invention.
5 is a front view illustrating a sump according to an embodiment of the present invention.
6 is a flowchart illustrating a method for controlling a dishwasher according to an embodiment of the present invention.

The above-described objects, features and advantages will be described below in detail with reference to the accompanying drawings, and accordingly, those skilled in the art to which the present invention pertains will be able to easily implement the technical idea of the present invention. In describing the present invention, if it is determined that a detailed description of a known technology related to the present invention may unnecessarily obscure the gist of the present invention, the detailed description will be omitted. Hereinafter, preferred embodiments according to the present invention will be described in detail with reference to the accompanying drawings. In the drawings, the same reference numerals are used to indicate the same or similar components.

Although the first, second, etc. are used to describe various elements, these elements are not limited by these terms, of course. These terms are only used to distinguish one component from other components, and unless otherwise stated, the first component may be the second component, of course.

In the following, that an arbitrary component is disposed on the "upper (or lower)" of a component or "top (or below)" of a component means that any component is disposed in contact with the upper surface (or lower surface) of the component. Furthermore, it may mean that other components may be interposed between the component and any component disposed on (or under) the component.

Also, when it is described that a component is “connected”, “coupled” or “connected” to another component, the components may be directly connected or connected to each other, but other components are “interposed” between each component. It is to be understood that “or, each component may be “connected”, “coupled” or “connected” through another component.

Throughout the specification, unless otherwise stated, each element may be singular or plural.

As used herein, the singular expression includes the plural expression unless the context clearly dictates otherwise. In the present application, terms such as "consisting of" or "comprising" should not be construed as necessarily including all of the various components or various steps described in the specification, some of which components or some steps are It should be construed that it may not include, or may further include additional components or steps.

Throughout the specification, when “A and/or B” is used, it means A, B or A and B, unless specifically stated to the contrary, and when “C to D” is used, it means that there is no specific contrary description. Unless otherwise specified, it means that it is greater than or equal to C and less than or equal to D.

[Configuration of the dishwasher]

1 is a schematic cross-sectional view of a dishwasher 1 according to an embodiment of the present invention.

As shown in FIG. 1 , a dishwasher 1 according to an embodiment of the present invention includes a case 12 forming an exterior, and a space located inside the case 12 for washing dishes. It may include a tub 16 to be used, a door installed on the front surface of the tub 16, and a sump 40 disposed below the tub 16 and storing washing water.

The upper side of the sump 40 is connected to the bottom 17 of the tub 16 . Therefore, the washing water sprayed into the tub 16 is collected inside the sump 40 after being moved to the bottom 17 of the tub 16 .

A filter 60 for filtering the washing water supplied from the outside or the washing water flowing in from the tub 16 is installed inside the sump 40 according to the present embodiment.

The dishwasher 1 according to an embodiment of the present invention includes a spray nozzle 20 , a connection pipe 22 , an upper rack 30 , a lower rack 32 , a steam nozzle 34 , and a vibration generating unit 50 . ), a water supply pipe 70 , a water supply valve, a drain pump 82 , a washing pump 90 , a washing motor, and a heater 100 .

The spray nozzle 20 is installed inside the tub 16 , and sprays washing water into the tub 16 . The number of injection nozzles 20 may be one or two or more. The injection nozzle 20 according to an embodiment of the present invention is provided in plurality, and may be installed inside the tub 16 in the vertical direction.

The injection nozzle 20 according to an embodiment of the present invention is provided in plurality, and includes a lower portion spray nozzle 20 , an upper portion spray nozzle 20 , and a top spray nozzle 20 .

The lower part spray nozzle 20 is installed on the lower side of the tub 16 and sprays washing water toward the upper side to wash dishes mounted on the lower rack 32 . The lower rack 32 is installed on the upper side of the lower part spray nozzle 20 , and the upper rack 30 is installed on the upper side of the lower rack 32 .

And the upper part spray nozzle 20 is disposed between the upper rack 30 and the lower rack 32 , and sprays washing water to at least one of the upper rack 30 and the lower rack 32 .

And the top spray nozzle 20 is installed on the upper side of the tub 16, which is the upper side of the upper rack 30, and sprays the washing water toward the inside of the tub 16. The plurality of spray nozzles 20 may receive washing water from the washing pump 90 through the plurality of spray nozzles 20 connecting pipes 22 .

The washing pump 90 supplies the washing water stored in the sump 40 to the spray nozzle 20 . In addition, a switching valve 86 may be additionally installed in the pipe connecting the washing pump 90 and the injection nozzle 20 . The movement of the washing water is controlled by the operation of the switching valve 86 .

Meanwhile, a rack is installed inside the tub 16 to mount a washing object including dishes. The rack according to an embodiment of the present invention is installed in a shape to mount the washing object so as to wash the washing object with the washing water sprayed by the plurality of spray nozzles 20 . The rack may include an upper rack 30 disposed on the upper side and a lower rack 32 disposed below the tub 16 based on the position where the tub 16 is disposed therein.

The switching valve 86 may selectively supply the washing water pumped by the washing pump 90 to at least one of the lower part spray nozzle 20 , the upper spray nozzle 20 , and the top spray nozzle 20 . The switching valve 86 may selectively connect at least one of the washing water supply pipe through which the washing water discharged from the washing pump 90 flows and the connecting pipe 22 of the plurality of injection nozzles 20 .

The washing pump 90 may be connected to the sump 40 through a water collecting pipe 84 . A valve for controlling the movement of the washing water may be installed at the inlet of the water collecting pipe 84 or the washing pump 90 .

The dishwasher 1 according to an embodiment of the present invention may include a water supply assembly for supplying washing water to the inside of the dishwasher 1 and a drainage assembly for draining water stored in the dishwasher 1 . .

The water supply assembly according to an embodiment of the present invention includes a water supply pipe 70 for supplying washing water from an external water source, a water supply valve 72 installed on the water supply pipe 70 to open and close a flow path, and a sump through the water supply pipe 70 . It may include a flow meter 74 for measuring the flow rate of the washing water moving to (40).

The drain assembly according to an embodiment of the present invention includes a drain pipe 80 having a drain passage guiding water stored in the sump 40 to the outside, and disposed on the drain passage formed in the drain pipe 80 , the sump 40 ) may be provided with a drain pump 82 for draining the washing water in the outside. The drain pump 82 may include a drain motor that generates a rotational force.

The washing pump 90 according to an embodiment of the present invention is connected to the sump 40 , and a heater 100 may be additionally installed in succession to the washing pump 90 . The washing pump 90 may supply the water stored in the sump 40 to the plurality of spray nozzles 20 . And the steam generated by the operation of the heater 100 mounted on the outside of the washing pump 90 is transferred to the steam nozzle 34 . The steam nozzle 34 may supply steam to the inside of the tub 16 .

Also, the dishwasher 1 may further include a water collecting pipe 84 . The water collecting pipe 84 connects the sump 40 and the washing pump 90 . The heater 100

Washing water flowing inside the dishwasher 1 according to the present embodiment flows through the sump 40 and the tub 16 to wash the object to be washed. In addition, washing water supplied from an external water source through the water supply assembly may be supplied to the sump 40 and stored inside the sump 40 . In addition, washing water may be supplied from an external water source to the sump 40 through the water supply assembly, and may be discharged from the sump 40 to the outside through the drain assembly.

The washing water stored in the sump 40 flows into the washing pump through the water collecting pipe 84 connected to the washing pump 90 . The washing water is supplied to the jet nozzle 20 through the washing pump 90 , and the washing water injected into the tub 16 through the jet nozzle 20 is a sump through a hole formed in the bottom 17 of the tub 16 . (40) can be introduced.

Steam flowing inside the dishwasher 1 according to an embodiment of the present invention is generated by the washing pump 90 . By operating the heater 100 , the washing water present in the washing pump 90 may be generated as steam.

The steam generated by the washing pump 90 may be moved to a steam supply pipe connected to the washing pump 90 and introduced into the tub 16 .

[Training Department]

FIG. 2 is a plan view illustrating a state in which the softening unit 110 is connected to the sump 40 according to an embodiment of the present invention. As shown in FIG. 2 , the sump 40 is connected to the softening unit 110 . Salt is supplied to the inside of the softening unit 110 . The soft water unit 110 makes soft water using the supplied salt and then supplies it to the sump 40 . A pipe supplied from the softening unit 110 to the sump 40 may be connected to the water supply pipe 70 , and is directly connected to the sump 40 if necessary. The softening unit 110 is connected to the sump 40 , and various modifications are possible within the technical idea of supplying soft water to the sump 40 .

Salt including incense may be supplied to the softening unit 110 . Alternatively, salt may be supplied to the softening unit 110 together with the deodorant. The deodorant according to an embodiment of the present invention uses salt containing an aromatic fragrance, but is not limited thereto, and other substances having a deodorizing component may also be used as the deodorant.

[Sump]

3 is a perspective view illustrating a state in which the washing pump 90 is connected to the sump 40 of the dishwasher 1 according to an embodiment, and FIG. 4 shows the sump 40 according to an embodiment of the present invention. It is a perspective view, and FIG. 5 is a front view showing the sump 40 according to an embodiment of the present invention.

3 to 5 , the sump 40 is disposed below the tub 16 for washing dishes, and various modifications are possible within the technical concept of forming a space for storing washing water. The sump 40 according to an embodiment of the present invention may include a connection body 42 , a water collecting part 44 , a discharge pipe part 46 , a pump connection pipe line 47 , and an inflow pipe line 48 . .

The connecting body 42 is connected to the lower side of the tub 16 and has an open upper side. Accordingly, the washing water inside the tub 16 flows into the sump 40 through the connection body 42 .

The water collecting part 44 extends downward of the connecting body 42 to form a concave groove. Accordingly, the washing water flowing into the sump 40 through the connection body 42 is stored inside the water collecting unit 44 . The water collecting unit 44 can be variously modified within the technical concept of storing and moving washing water. A plurality of conduits may be connected to the water collecting unit 44 . The water collecting part 44 according to an embodiment of the present invention is connected to the discharge pipe part 46 , the pump connection pipe 47 , and the inflow pipe 48 .

The discharge pipe part 46 is connected to the lowermost side of the water collecting part 44 . A vibration generating part 50 is installed in the discharge pipe part 46 . In addition, the discharge pipe part 46 is connected to the lower side of the water collecting part 44 and may be connected to the discharge pipe part 46 connected to the drain pump 82 or the drain pipe 80 .

The pump connection pipe line 47 is connected to the washing pump 90 through the water collecting pipe 84 . The pump connection pipe (47) part is located on the upper side of the discharge pipe part (46), and the intake pipe line (48) is located on the upper side of the pump connection pipe part (47).

The inlet pipe 48 is installed at a higher position than the discharge pipe part 46, and the inlet pipe 48 and the pump connection pipe 47 can be installed at the same height, and various modifications are possible.

[Vibration generator]

The vibration generating unit 50 is installed in the sump 40 , and various modifications are possible within the technical concept of evaporating the washing water remaining in the sump 40 by generating vibration. In addition, the vibration generating unit 50 also serves as a function of evaporating the softened water supplied to the sump 40 by generating vibration.

The vibration generating unit 50 according to an embodiment of the present invention may be installed in the water collecting unit 44 or the discharge pipe unit 46 . The vibration generating unit 50 according to an embodiment of the present invention is installed on the lower side of the discharge pipe part 46, and the operation may be performed after washing of the dishes is completed. Also, the vibration generating unit 50 is installed on the lower side of the discharge pipe part 46 , and the operation may be performed after the soft water is supplied from the soft water softening unit 110 to the sump 40 .

The vibration generating unit 50 uses an ultrasonic module, and may remove the residual water by evaporating the washing water remaining in the discharge pipe part 46 . Alternatively, a heater 100 for generating steam, a vibrator, etc. may be used as the vibration generating unit 50 .

In the dishwasher 1 according to an embodiment of the present invention, salt with a deodorizing agent is added to the softening unit 110 , and salt including the deodorizing agent is dissolved in the softening unit 110 and supplied to the sump 40 . . A portion of the brine supplied to the sump 40 is evaporated by the operation of the vibration generating unit 50 , and the rest circulates inside the dishwasher 1 to remove odor substances from the inside of the dishwasher 1 .

Meanwhile, although it has been described as an example that one vibration generating unit 50 is provided in the dishwasher 1 according to an embodiment of the present invention, this is merely exemplary, and two or more vibration generating units 50 are provided. It goes without saying that the object of the present invention can be sufficiently achieved even if it is installed on the sump 40 .

[How to control the dishwasher]

Hereinafter, a control method of the dishwasher 1 according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

6 is a flowchart illustrating a control method of the dishwasher 1 according to an embodiment of the present invention.

As shown in FIG. 6 , the control method of the dishwasher 1 according to an embodiment of the present invention includes a step of supplying salt including a deodorant to the softening unit 110 ( S10 ).

As the deodorant, various types of deodorants or air fresheners including aroma fragrance may be used. Salt including a deodorant is supplied to the softening unit 110 to make soft water. By liquefying the deodorant, the deodorant can be removed quickly.

Then, there is a step of supplying soft water from the softening unit 110 to the sump 40. (S20) The soft water including incense generated in the softening unit 110 is transmitted through the water collecting pipe 48 of the sump 40 to the water collecting unit ( 44) is supplied to the inside. Soft water made by adding salt including fragrance to the softening unit 110 is supplied to the sump 40 . Alternatively, only the deodorant agent may be integrated and supplied to the water collecting unit 44 of the sump 40 .

Then, the vibration generating unit 50 mounted on the sump 40 is operated first to generate water vapor including the deodorant. (S30) Washing the dishwasher 1 by turning salt water containing the deodorant into water vapor Increase the humidity in the tub 16 so that this can be done well. By vaporizing the deodorant, the diffusion rate of the deodorant material is fast and spreads well. Therefore, it is possible to mask the smell in the tub 16, and to improve the cleaning power by making steam with the vibration generating unit 50 before cleaning.

Before washing the dishes, the tub 16 is filled with steam to loosen the bond between the contaminants and the dishes to facilitate washing and remove odor particles.

And after the first operation of the vibration generating unit 50 is performed, there is a step of washing and drying the dishes. (S40) In the step of washing the dishes, soft water including a deodorant can be used to wash the dishes. You can remove odors by washing the inside with salt water containing a deodorant.

And after the drying of the dishes is finished, there is a step of opening the door. (S50)

Then, the vibration generating unit 50 is operated secondarily to remove residual water in the sump 40 ( S60 ). In the step of removing the residual water in the sump 40 , the vibration generating unit 50 operates the sump 40 . ), so that residual water can be removed more easily. The vibration generating unit 50 may be removed by evaporating residual water in the discharge pipe section 46 connected to the drain pump 82 or connected to the drain pipe 80 using a vibrator.

After the operation of the dish washing machine 1 is completed, residual water is generated by collecting the water remaining in the inside of the dish washing machine 1, and at this time, the residual water is removed by using the vibrator of the vibration generating unit 50 .

As described above, the dishwasher 1 according to the present invention removes residual water remaining in the sump 40 after washing the dishes is completed. After the dish washing is finished, the vibration generating unit 50 installed at the lower side of the sump 40 is operated to evaporate the remaining water in the sump 40 , so that the remaining water in the sump 40 can be removed.

In addition, since the vibration generating unit 50 mounted on the sump 40 is operated to generate water vapor containing the deodorant, the odor remaining inside the tub 16 can be removed. ), so that the inside of the tub 16 is cleaned, the odor remaining inside the tub 16 can be removed.

As described above, the present invention has been described with reference to the illustrated drawings, but the present invention is not limited by the embodiments and drawings disclosed in the present specification. It is obvious that variations can be made. In addition, although the effects according to the configuration of the present invention have not been explicitly described and described while describing the embodiments of the present invention, it is natural that the effects predictable by the configuration should also be recognized.

1: Dishwasher
12: case 16: tub 17: bottom
20: spray nozzle 22: connector
30: upper rack 32: lower rack
34: steam nozzle
40: sump 42: connection body 44: water collection unit 46: discharge pipe section 47: pump connection pipe line 48: intake pipe line
50: vibration generating unit
60: filter
70: water supply pipe 72: water supply valve 74: flow meter
80: drain pipe 82: drain pump
84: water collecting pipe 86: switching valve
90: washing pump
100: heater
110: training department

Claims (11)

a tub for washing dishes;
a sump disposed below the tub and forming a space for storing washing water; and
and a vibration generating unit installed in the sump and evaporating the washing water remaining in the sump by generating vibration.
According to claim 1,
The sump may include: a connection body having an upper side connected to a lower side of the tub and having an inflow of washing water inside the tub;
a water collecting unit extending downwardly of the connecting body to form a concave groove and storing and moving the washing water; and
Dishwasher comprising a; is connected to the lower side of the water collecting unit, the discharge pipe connected to the drain pump or the drain pipe.
3. The method of claim 2,
The vibration generating unit may be installed in the water collecting unit or the discharge pipe unit.
3. The method of claim 2,
The vibration generating unit is installed on the lower side of the discharge pipe unit, and the dish washing machine operates after the washing of the dishes is completed.
a tub for washing dishes;
a sump disposed below the tub and forming a space for storing washing water;
a softening unit connected to the sump and supplying soft water to the sump; and
and a vibration generator installed on the sump and evaporating the softened water supplied to the sump by generating vibration.
A dishwasher in which salt including incense is supplied to the softening unit.
6. The method of claim 5,
The sump may include: a connection body having an upper side connected to a lower side of the tub and having an inflow of washing water inside the tub;
a water collecting unit extending downward of the connecting body to form a concave groove and storing the washing water; and
Dishwasher comprising a; is connected to the lower side of the water collecting unit, the discharge pipe connected to the drain pump or the drain pipe.
7. The method of claim 6,
The vibration generating unit is installed on the lower side of the discharge pipe unit, and the operation is performed after the soft water is supplied from the softening unit to the sump.
supplying salt including a deodorant to the softening unit;
supplying soft water from the softening unit to the sump;
generating water vapor including a deodorant by first operating the vibration generating unit mounted on the sump;
washing and drying dishes after the first operation of the vibration generating unit is performed;
opening a door after the drying of the dishes is finished; and
The second operation of the vibration generator to remove residual water in the sump;
9. The method of claim 8,
The deodorant is a control method of a dishwasher using salt containing an aromatic fragrance.
10. The method of claim 9,
In the step of removing the residual water in the sump, the vibration generating unit is installed below the sump.
9. The method of claim 8,
In the step of washing the dishes, soft water including the deodorant is used to wash the dishes.

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