KR20100058875A - Steam dish washer - Google Patents

Abstract

PURPOSE: A steam dish washer is provided to enhance washing efficiency by circulating steam in a washing tub. CONSTITUTION: A steam dish washer comprises a washing tub(20), a sump(30), a steam generator(50), and a steam circulating device. The washing tub supplies a space for washing tableware. The sump stores water to be used for washing. The steam generator generates the steam to be provided into the washing tub. The steam circulating device circulates the steam in the washing tub.

Description

Steam Dish Washer

The present invention relates to a dishwasher, and more particularly, to a dishwasher capable of supplying steam to a washing tank to use steam for washing the dish.

In general, the dishwasher is a device for washing dishes by spraying the washing water at a high pressure into the inside of the washing tank, the foreign matters such as food waste on the surface of the dish by washing the sprayed water touches the dish.

The dishwasher includes a washing tank formed inside the case, upper and lower racks slidably inserted into the washing tank and the lower side, and upper and lower parts rotatably installed on each of the upper and lower racks to spray washing water. With a nozzle.

A lower part of the washing tank is provided with a sump for collecting the washing water sprayed into the washing tank, and the sump is provided with a washing pump for supplying the washing water to the upper and lower nozzles.

The upper and lower nozzles are connected to the washing pump by upper and lower flow paths. Therefore, when the washing pump is operated, the washing water in the sump is supplied to the upper and lower nozzles along the upper and lower flow paths, and the washing water is sprayed into the washing tank while the upper and lower nozzles rotate.

In order to improve the washing performance of the dishwasher in such a dishwasher, the washing water was heated using a heater and the heated wash water was sprayed to soak the dishes so that foreign matters on the dish were separated well.

However, there is a limit in removing foreign matters such as rice paste or scale on the dishes by simply heating the washing water and calling the dishes. In addition, there is a problem in that the operation time of the dishwasher is long because it takes a lot of time to heat the washing water using a heater.

The present invention provides a dishwasher capable of washing dishes more efficiently in washing dishes. And it provides a dishwasher with a superior washing effect.

The present invention provides a dishwasher capable of improving the washing effect and the washing efficiency by washing dishes using steam efficiently.

Dishwasher according to the present invention, the washing tank for providing a space for washing the dishes; Sump for storing wash water; A steam generator for generating steam to be supplied into the washing tank; And a steam circulation device for circulating steam in the washing tank.

The steam circulation device may include a circulation fan for circulating the upper steam in the washing tank to the bottom.

For example, the circulation fan may be in the form of blowing air into the washing tank. Thus, the air is blown into the washing tank to circulate steam.

Alternatively, the steam circulation device, the steam suction unit is located in the upper portion of the washing tank, the steam is sucked by the circulation fan; Located in the lower portion of the inside of the washing tank, the steam discharge portion for discharging the sucked steam into the washing tank; And a circulation duct connecting between the steam suction unit and the steam discharge unit.

Such a steam circulation device is a structure that sucks steam in the upper part of the washing tank and discharges it to the lower part.

Here, the steam generator may further include a steam injection device connected to the steam generator and spraying steam from the rear of the lower portion of the inside of the washing tank, wherein the steam discharge unit may be positioned to discharge steam from the side of the lower portion of the washing tank. Can be.

The steam discharge unit may be located at the front side of the washing tank.

The dishwasher according to the present invention is excellent in washing efficiency and effect because it is to wash the dishes using steam.

Moreover, the washing efficiency can be further improved because the steam inside the washing tank can be circulated.

As shown in FIGS. 1 and 2, the dishwasher according to the embodiment of the present invention forms a facade and a case 1 in which the front is opened, and a door 2 for opening and closing the opened front of the case 1. And a control panel 3 installed above the door 2 to display and control the operation of the dishwasher.

The door 2 is formed with a handle 4 for the user to open and close the door (2). In addition, the control panel 3 has a power switch 5 for turning on or off the power of the dishwasher, an operation unit 6 for performing a predetermined operation on the dishwasher by a user's operation, and an operation of the dishwasher. A display unit 7 displaying a state, and an outlet 8 through which the hot air inside the dishwasher is discharged are provided.

A washing tank 20 is formed in the case 1 to accommodate dishes and to be washed. Under the washing tank 20, the washing water to be sprayed to the washing tank 20 is stored, and the washing tank 20 is provided. There is provided a sump (30) for collecting the washing water sprayed to).

In addition, a filter 31 for filtering foreign substances included in the washing water sprayed into the washing tank 20 is installed.

The upper and lower nozzles 23 and 24, which are divided into upper and lower parts in the washing tank 20, and which wash water is sprayed toward the upper and lower racks 21 and 22 and the upper and lower racks 21 and 22. ) Is installed. The upper and lower flow paths 27 and 28 are provided in the washing tank 20 so that the washing water collected in the sump 30 is supplied to the upper and lower nozzles 23 and 24 installed in the washing tank 20. The upper flow path 27 is formed by the water guide 29.

In addition, by connecting the washing tank 20 and the water source (for example, water) outside the case 1 to wash the water supply line 41 and the dishes to allow the water to be supplied into the washing tank 20, the contaminated washing water outside the dishwasher. A drain pipe 42 is provided to allow drainage to the furnace.

The sump 30 is provided with a washing pump 35 for supplying water to the upper and lower nozzles 23 and 24. The washing water sprayed from the washing pump 35 is selectively supplied to the upper and lower nozzles 23 and 24 through the upper and lower passages 27 and 28.

In addition, the sump 30 may be provided with a heater 36 for heating the wash water collected in the sump (30).

On the other hand, a steam generator 50 for generating steam to supply steam into the washing tank 20 in addition to the heater 36 may be installed in the lower portion of the washing tank 20.

The steam generator 50 is connected to the washing tank 20 by the steam supply pipe 60, so that the steam generated in the steam generator 50 is supplied into the washing tank 20.

When the steam generated in the steam generating device 50 is supplied into the washing tank 20, foreign matters buried in the tableware by the steam may be called well to improve washing efficiency.

The water supply pipe 41 is divided into two, one is connected to the sump 30 and the other is connected to the steam generator 50 to supply water to each of the sump 30 and the steam generator 50. . On the water supply line 41, valves 43 and 44 are provided for controlling the flow of water supplied to the sump 30 and the steam generator 50, respectively.

The steam generator 50 for generating steam includes a reservoir 51 in which water is stored, a heater 52 installed inside the reservoir 51 to heat water in the reservoir 51, and the reservoir ( The water level sensor 53 for detecting the level of water stored in the 51, and the temperature sensor 54 for measuring the temperature inside the reservoir 51 to prevent overheating of the heater (52).

One side of the reservoir 51 is connected to the steam hose 60 extending from the reservoir 51 to the washing tank 20 to guide the steam generated in the reservoir 51 to the washing tank 20, the steam hose ( The other end of the 60 is connected to the steam injection device 100 for injecting steam to the washing tank (20).

The steam spraying device 100 may be installed at the rear side of the washing tank 20 as shown in FIG. 3, and includes a plurality of nozzles 130 for spraying steam generated by the steam generating device 50. can do.

The steam injection device 100 is connected to the steam generating device 50, the supply pipe 110 is supplied with steam, a plurality of branch pipes 120 branched from the supply pipe 110, and each branch pipe ( Each nozzle 130 provided on the 120 is included. Each nozzle 130 is provided with a plurality of injection holes 131.

More specifically, as illustrated in FIGS. 4 and 5, the steam spraying device 100 is mounted to the water guide 29 provided on the rear surface of the washing tank 20.

Hook device 200 is provided for convenience of assembly when the steam spraying device 100 is mounted on the water guide 29 provided on the rear surface of the washing tank 20.

The hook device 200 includes a pair of ribs 210 extending from the rear of the steam spraying device 100 and protruding from the rear end of the steam spraying device 100, provided at the ends of the ribs 210 and having a U-shaped hook 220. And a hook groove 230 provided in the water guide 29 to which the hook 220 is inserted.

The rib 210 and the hook 220 provided at the end of the rib 210 may be integrally formed by a method such as injection molding. And, the rib 210 may be made to provide an elastic force.

In addition, the water guide 29 is provided with a plurality of positioning projections 250 for guiding the position where the steam injection device 100 is coupled to the water guide 29. The end of each positioning protrusion 250 is rounded. Therefore, when the steam injection device 100 is mounted on the water guide 29 to guide the mounting position.

The remaining portion except for the coupling portion 105 that the steam spraying device 100 is coupled to the water guide 29 is bent to the rear side on both sides of the coupling portion 105 to be as close as possible to the rear of the washing tank 106 ) May be formed.

Hereinafter, a process of coupling the steam injection device 100 to the water guide 29 will be briefly described.

The coupling part 105 of the steam spraying device 100 is positioned where the positioning protrusion 250 of the water guide 29 is provided.

Then, when the steam injection device 100 is pushed to the rear side, the coupling portion 105 is guided by the plurality of positioning protrusions 250 and gradually approaches the water guide 29. At this time, the water guide 29 is inserted between the hook 220 provided at the end of the rib 210, the rib 210 is opened to both sides.

In this state, if the steam spraying device 100 is further pushed, the hook 220 is positioned at the rear side of the water guide 29, and the hook 220 is positioned at the rear side of the water guide 29. Is retracted by the elastic restoring force. When the rib 210 is retracted by the elastic restoring force, the hook 220 is inserted into the hook groove 230 provided at the rear of the water guide 29. Therefore, the steam spraying device 100 is firmly mounted to the water guide 29.

Hereinafter, the steam circulation device will be described with reference to FIGS. 2, 6, and 7.

The steam circulation device includes a steam suction unit 310 for sucking steam in the washing tank 20, a steam discharge unit 320 for discharging the sucked steam back into the washing tank 20, and the steam suction unit. It includes a duct 330 connecting between the 310 and the steam outlet 320. The steam sucked into the steam suction unit 310 through such a configuration is discharged back into the washing tank 20 toward the steam discharge unit 320 through the duct 330.

A circulation fan 340 is included to forcibly suck steam through the steam suction unit 310. The circulation fan 340 may be installed between the steam suction unit 310 and the duct 330.

The circulation fan 340 may be rotated in connection with a motor, whereby steam is sucked into the steam suction unit 310 and steam is discharged to the steam discharge unit 320.

The steam suction unit 310 and the steam discharge unit 320 may be located on the side of the cleaning tank (20). That is, the case 1 may be formed on any one side plate 1a of the two side plates 1a and one back plate 1b defining a space inside the washing tank 20. In the present embodiment, a plurality of holes are formed in the rear side of the upper portion of the left face plate 1a for the steam suction part 310. In addition, a plurality of holes are formed at the front side of the lower portion of the left face plate 1a for the steam discharge part 320.

The steam suction unit 310 and the steam discharge unit 320 may be formed on the rear plate (1b) in addition to the side plate (1a). In addition, the steam suction unit 310 may be formed on the ceiling plate of the washing tank 20 in addition thereto.

The steam suction unit 310 may be formed at another position in addition to the steam suction unit 310 in the washing tank 20 as long as it can suck the steam in the upper portion. In addition, the steam discharge unit 320 may be formed at another position as long as the sucked steam can be discharged to the lower part of the washing tank 20.

The steam discharge unit 320 may be located in consideration of the position of the injection port of the steam injection device (100) (100). In this embodiment, the steam spraying device 100, 100 is formed to spray steam from the lower side of the rear plate 1b in the washing tank 20. In addition, the steam discharge part 320 is formed to inject steam from the front side of the lower side of the side plate (1a) in the washing tank (20).

The steam spraying device 100, 100 and the steam discharge unit 320 may be installed to supply steam to the dishes placed on the lower rack 22. To this end, the steam spraying device 100, 100 and the steam discharge part 320 may be installed at a position lower than or equal to the height of the lower rack 22.

Since the steam rises because of high temperature, the steam injected into the lower portion of the washing tank 20 may contact the dishes placed on the lower rack 22 and the upper rack 21 while rising upward of the washing tank 20.

The steam rising upward in the washing tank 20 comes into contact with the dishes of the upper rack 21, but the steam rising beyond that can no longer contact the dishes. However, it is sucked through the steam suction unit 310 and circulated back through the steam discharge unit 320 to the lower portion of the inside of the washing tank 20 to contact the dishes. Thus, the steam suction unit 310 may be installed at the same height or higher than the height of the upper rack (21).

The dishwasher according to the present invention may include a steam washing course as a washing course. And, the steam cleaning course as described above may be programmed in the controller. Thus, when the user selects the steam washing course through the control panel 3, the controller automatically operates the dishwasher to run the programmed steam washing course. According to the steam washing course, the water supply valve, the upper / lower nozzles 23 and 24, the steam generator 50, the washing pump, the steam circulation device, and the like are operated.

Of course, with regard to the operation of the steam cleaning course, the user can select several options. For example, the amount and time of steam to be supplied to the washing tank 20, the number of times or the timing of supplying the steam (for example, spraying the steam once for the first soaking after washing water or further several times thereafter). ) And so on. In addition, an option selector may be provided in the control panel 3 to select such an option.

On the other hand, the steam circulation device may be controlled to operate when the set time elapses after the steam is supplied into the washing tank (20). For example, after the steam generator 50 is operated, it may be possible to estimate the time required for the steam to be supplied to the washing tank 20. After the steam generator 50 is operated, the steam generator 50 may be set to the required time as described above. When the time elapses, the steam circulator may be controlled to operate.

Alternatively, steam may be controlled to be operated at the same time as being supplied to the washing tank (20). To this end, as described above, the steam generator 50 may be controlled to operate at a predetermined time after the steam generator 50 is set to a predetermined time, which is expected to begin to be generated.

The above-described embodiments of the present invention are only examples of the present invention and should not be interpreted to limit or reduce the claims of the present invention, and the present invention may have various embodiments.

1 is a perspective view of a dishwasher according to an embodiment of the present invention.

2 is a cross-sectional view of the dish washing machine shown in FIG.

3 is a perspective view of a steam spraying device installed in the dish washing machine shown in FIG.

Figure 4 is an enlarged perspective view of a portion of the steam injector is coupled to the water guide.

Figure 5 is a perspective view showing the rear side of the portion where the steam spraying device is coupled to the water guide.

6 shows an arrangement relationship between the steam spraying device and the steam circulating device in the washing tank.

7 is a view showing in detail the steam circulation device installed on the back of the side plate.

** Description of the main parts of the drawing **

20: washing tank 29: water guide

100: steam injection device 200: hook device

210: rib 220: hook

230: hook groove 250: positioning projection

310: steam suction unit 320: steam discharge unit

330: duct 340: circulation fan

Claims (6)

A washing bath providing space for washing dishes; Sump for storing wash water; A steam generator for generating steam to be supplied into the washing tank; And A steam circulation device for circulating steam in the washing tank; Dishwasher is configured to include. The dishwasher of claim 1, wherein the steam circulation system circulates steam in an upper portion of the washing tank to a lower portion. The dish washing machine according to claim 2, wherein the steam circulation device includes a circulation fan for circulating the upper steam in the washing tank to the lower side. The steam circulation system of claim 3, wherein the steam circulation device is: A steam suction unit positioned at an upper portion of the inside of the washing tank and configured to suck steam by the circulation fan; Located in the lower portion of the inside of the washing tank, the steam discharge portion for discharging the sucked steam into the washing tank; A circulation duct connecting between the steam suction unit and the steam discharge unit; Dishwasher comprising a. The steam generator of claim 4, further comprising a steam injection device connected to the steam generator and configured to inject steam from the rear of the lower part of the washing tank, wherein the steam discharge part discharges steam from the side of the lower part of the washing tank. Dishwasher, characterized in that located. The dish washing machine according to claim 5, wherein the steam discharge part is located at a front side in the washing tank.

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