KR101290098B1 - A dish washing machine - Google Patents

Abstract

The present invention relates to a dishwasher, the purpose of which is to increase the drying performance by providing the position of the drying pan and drying duct on the side of the washing tank.

The present invention for this purpose; A drying fan installed at a side of the washing tank to suck wet steam generated during a dish drying process in the washing tank; And a drying duct connected to the drying fan to discharge the sucked wet steam.

Description

A dish washing machine

1 is a side cross-sectional view showing the configuration of a dish washer according to the present invention,

Figure 2 is a perspective view showing a side portion of the dishwasher with a drying duct of the present invention,

Figure 3 is a schematic exploded perspective view of the dishwasher with a drying duct of the present invention,

Figure 4 is a front view showing a drying duct of the present invention.

Description of the Related Art [0002]

20: washing tank 26a, 26b, 26c: spray nozzle

42: sump 46: circulation pump

48: drain pump 52: drain pipe

61: drying duct 62: drying fan

63: motor 64: dry hose

65: check valve

The present invention relates to a dishwasher, and more particularly to a drying duct structure for improving drying performance.

In general, the dishwasher is a device for washing contaminants (food waste, etc.) on the dishes by spraying the washing water of cold or hot water to the dishes at a high pressure, a washing tank for washing the dishes, and provided inside the washing tank to store the dishes It is composed of a dish basket, a spray nozzle provided in the upper and lower portions of the dish basket to spray the washing water, and a sump connected to the spray nozzle to pump the washing water into the spray nozzle.

When the dishwasher stores the dishes to be washed in the dish basket and the washing water is supplied to the washing tank, the circulation pump inside the sump operates to move the washing water to the spray nozzle, thereby dispensing the washing water at a high pressure. Wash.

After the above washing process (washing and rinsing stroke), a drying stroke is carried out to dry the dishes. During the drying stroke, a mixture of high temperature wet steam generated from the inside and cold air from the outside is introduced to introduce the mixed air back into the washing tank. A condensation drying device for drying dishes using a duct structure is employed in a dishwasher.

Korean Patent Publication No. 2005-0014515 has a dishwasher employing such a condensation drying apparatus.

The condensation drying apparatus of the dishwasher disclosed in the publication uses an impeller on a duct structure to mix external cold air with high temperature wet steam after washing, and then introduces the same into the washing tank to relatively high temperature saturated steam inside the washing tank. It was recondensed with low temperature air and dried to improve the drying performance.

However, such a condensation drying apparatus of the dishwasher may deteriorate the drying performance of the non-condensed wet steam back into the washing tank, and the problem such as dew condensation on the door PCB or the display device due to the wet steam flowing into the door side. Occurred.

Accordingly, the present invention is to solve the conventional problems as described above, the object of the present invention is to provide a dishwasher that can solve the dew condensation problem of the door side by providing the position of the drying pan and drying duct on the side of the washing tank. have.

Another object of the present invention is to provide a dish washer that can improve the drying performance by connecting the drying duct to the drain pipe to block the inflow of the wet steam into the washing tank.

The present invention is a washing tank to achieve the above object; A drying fan installed at a side of the washing tank to suck wet steam generated during a dish drying process in the washing tank; And a drying duct connected to the drying fan to discharge the sucked wet steam.

In addition, the drying duct is installed on the side of the washing tank is characterized in that connected to the drain pipe to discharge the wet steam in the washing tank.

In addition, one side of the drying duct is characterized in that a drying hose is provided for connecting the drying duct to the drain pipe.

The present invention further includes a drain pump for discharging the wet steam remaining in the drain pipe, wherein the drain pump includes a check valve to prevent the wet steam discharged into the drain pipe through the drying duct from being introduced into the washing tank. Characterized in that installed.

In addition, the drying duct is characterized in that the discharge hole for discharging the condensed condensed water and the wet steam not condensed while passing through the wet steam sucked by the drying fan is provided.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

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

In Figure 1, the dishwasher of the present invention is formed of a main body 10 having a washing space therein, and a door 12 for opening and closing the front of the main body 10 to form its appearance.

The main body 10 is provided with a washing tank 20 for washing, and the washing tank 20 supports a plurality of dish baskets 22 for storing dishes and a plurality of dish baskets 22 to be slidably movable. Upper and lower injection nozzles 26a, interruption injection nozzles 26b, and lower injection nozzles 26c are provided at upper and lower portions of the rack 24 and the plurality of dish baskets 22 to spray washing water.

Here, the upper injection nozzle 26a and the interruption injection nozzle 26b are connected to the sump 42 which will be described later by the first supply pipe 28a, and the lower injection nozzle 26c is sump by the second supply pipe 28b. In connection with (42), the washing water is supplied. The upper injection nozzle 26a, the interruption injection nozzle 26b, and the lower injection nozzle 26c are rotated by the injection of the washing water, thereby allowing the washing water to be evenly sprayed on the dishes stored in the plurality of dish baskets 22.

And, the bottom surface of the washing tank 20 is provided with a heater 30 for heating the washing water, the heater 30 is accommodated in the heater installation groove 32 formed on the bottom surface of the washing tank (20).

In addition, the lower portion of the washing tank 20 is provided with a machine room 40, the inside of the machine room 40 to collect and pump the washing water supplied into the washing tank 20, the washing water is top, middle and lower injection nozzles (26a, A sump 42 for moving to 26b and 26c is provided.

In addition, the sump 42 is provided with various flow paths and a circulating pump 46 for pumping water into these flow paths, and a drain pump for discharging contaminated washing water to the outside through the drain pipe 52 on one side of the sump 42. 48 and a drain valve 50 are provided.

Hereinafter, an operation process of the dish washing machine configured as described above will be described.

First, when power is applied in a state in which the dish to be washed is stored in the dish basket 22 inside the washing tank 20, the washing water required for washing starts to be supplied into the washing tank through the washing water supply hole (not shown).

The washing water supplied into the washing tank is collected into the sump provided at the lower portion of the washing tank, and the washing water collected by the pumping action of the sump inner circulation pump is pumped through the first and second supply pipes 28a and 28b. ) And the interruption injection nozzle 26b and the lower injection nozzle 26c to move the washing water at a high pressure to the dishes stored in the dish basket 22 to perform the washing stroke.

When the washing stroke is completed, not only the washing water but also the contaminants on the tableware are washed by the washing water and collected by the sump 42, so that the washing water containing the contaminants is drained by the operation of the drain pump 48 and the drain valve 50. Discharge to outside through (52).

When the wash water containing contaminants is discharged to the outside, clean wash water is collected again through the wash water supply hole (not shown) to the sump 42, and in the same manner as the washing, The rinse stroke is performed by spraying the washing water at high pressure.

When the rinsing stroke is completed, a drying stroke is passed, in which the hot air flows into the washing tank 20 to absorb moisture contained in the dishes. Therefore, the air inside the washing tank 20 is changed to a high temperature wet steam in a high temperature dry state. The high temperature wet steam is discharged to the drain pipe 52 through the drying hose 64 while passing through the drying duct provided on the side of the washing tank 20. Hereinafter, a process of discharging high temperature wet steam through a drying duct will be described with reference to FIGS. 2 to 4.

Figure 2 is a perspective view showing the side of the dishwasher with a drying duct of the present invention, Figure 3 is a schematic exploded perspective view of the dishwasher with a drying duct of the present invention, Figure 4 is a front view showing a drying duct of the present invention. .

2 to 4, the high temperature wet steam generated in the washing tank 20 during the drying stroke of the dishwasher flows into the drying duct 61 installed on the side of the washing tank 20, one side of the drying duct 61 It is provided with a drying fan 62 and a motor 63 for driving the drying fan 62 to allow the wet steam in the washing tank 20 to escape to the drying duct 61.

The drying duct 61 and the drain pipe 52 are provided at the lower side of the drying duct 61 to discharge the condensed condensed water and the wet steam not condensed as the wet steam inside the washing tank 20 exits the drying duct 61. Drying hose 64 is connected to the installation.

On the other hand, the drying duct 61 is formed so that the flow path of the wet steam flowing through the drying duct 61 is long, so that the time that the wet steam stays in the drying duct 61 is long, along the drying duct 61 Flow is subject to flow resistance, and the flow resistance causes condensation by contacting the inner circumferential surface of the drying duct 61. A discharge hole 61a for discharging the condensed water condensed with the condensed water flowing through the drying duct 61 and the wet steam which is not condensed is formed at the lower end of the drying duct 61, and is coupled to the drying hose 64.

In addition, a check valve 65 is provided at the sump 42 mounting portion of the drain pump 48 installed in the drain pipe 52 to prevent the wet steam flowing through the drying duct 61 from being introduced into the washing tank 20.

It describes a process of discharging the high temperature wet steam generated in the washing tank 20 during the drying stroke of the dish washing machine configured as described above.

When the drying fan 62 operates according to the driving of the motor 63 in the drying stroke, hot air flows into the washing tank 20 to absorb moisture contained in the dishes. Therefore, the air inside the washing tank 20 is changed to a high temperature wet steam in a high temperature dry state. The high temperature wet steam is subjected to flow resistance as it exits through the drying duct 61 provided on the side of the washing tank 20, and is condensed by contact with the inner circumferential surface of the drying duct 61 by the flow resistance to be converted into condensed water. The wet steam is not condensed and flows into the drying hose 64 through the discharge hole 61a and remains in the drain pipe 52 connected to the drying hose 64.

The condensed water and the wet steam remaining in the drain pipe 52 are discharged to the outside at the time of the final drain stroke to improve the drying performance regardless of the condensation rate.

As described above, according to the dishwasher according to the present invention, it is possible to solve the dew condensation problem on the door side by providing the positions of the drying fan and the drying duct on the side of the washing tank, and also by securing a space on the front door side. The effect is that design can be introduced.

In addition, the present invention has the effect that by connecting the drying duct to the drain pipe can block the inflow of the wet steam into the washing tank to improve the drying performance.

Claims (5)

Washing tank; A drying fan installed at a side of the washing tank to suck wet steam generated during a dish drying process in the washing tank; A drying duct installed at a side of the washing tank and connected to the drying fan to discharge the suctioned wet steam; A drain pipe connected to the drying duct to discharge wet steam in the washing tank; And a check valve for preventing the wet steam discharged into the drain pipe through the drying duct from being introduced into the washing tank. delete The method of claim 1, One side of the drying duct dishwasher, characterized in that the drying hose is provided for connecting the drying duct to the drain pipe. The method of claim 1, And a drain pump for discharging the wet steam remaining in the drain pipe. The method of claim 1, And a discharge hole for discharging condensed water condensed and wet steam not condensed as the drying duct passes through the wet steam sucked by the drying fan.

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