KR20080083393A - Dish washer - Google Patents

Abstract

A dish washer is provided to shorten drying time of wet steam and to prevent a burn of a user by forming at least one passage guide in a condenser and communicating an outlet of a fan assembly with one side of the condenser. A dish washer comprises a tub, a door, a condenser(300), and a fan assembly. The door includes a door cover, and a door liner(271) which is combined at the rear of the door cover. The condenser, which is placed between the door cover and the door liner, condenses wet steam. The fan assembly sucks the wet steam in the tub and supplies the wet steam to the condenser. At least one passage guide is installed in the condenser. An outlet of the fan assembly communicates with one side of the condenser. The other side of the condenser communicates with the inside of the tub. An outdoor intake port(255) is formed at one side of the fan assembly.

Description

Dishwasher {Dish washer}

1 is a side cross-sectional view schematically showing a dishwasher according to the present invention.

FIG. 2 is an enlarged view of a portion A shown in FIG. 1. FIG.

3 is a front view showing the door liner of the dishwasher according to the first embodiment of the present invention.

4 is an external perspective view showing the condensation unit structure of the dish washing machine according to the first embodiment of the present invention.

5 is a front view showing the door liner of the dishwasher according to the second embodiment of the present invention.

6 is a front view showing the door liner of the dishwasher according to the third embodiment of the present invention.

7 is an external perspective view showing a structure of a condensation unit according to a third exemplary embodiment of the present invention.

<Explanation of symbols for main parts of the drawings>

100: dishwasher 110: tub

120: upper rack 130: lower rack

140: water guide 300, 400: condensation unit

The present invention relates to a dishwasher, and more particularly, to a drying apparatus of a dishwasher to quickly condensate the steam generated in the drying process.

In general, the dishwasher is a home appliance for cleaning the food residue on the surface of the dish by the high-pressure washing water sprayed from the spray nozzle.

In detail, the dishwasher includes a tub in which a washing tank is formed and a sump mounted on the bottom of the tub to store washing water. Then, the washing water is moved to the spray nozzle by the pumping action of the washing pump mounted inside the sump, and the washing water moved to the spray nozzle is sprayed at high pressure through the spray hole formed at the dispensing nozzle end. In addition, the washing water sprayed at a high pressure hits the surface of the tableware, and dirt, such as food residues on the tableware, falls to the bottom of the tub.

As a method of treating high temperature steam inside the dishwasher, there are an exhaust type drying method and a circulation drying method.

In detail, the exhaust type drying method is a method in which the drying fan sucks in the humid air inside the tub and discharges it to the outside. In addition, the condensation type drying method has a condensation means inside the tub, and discharges wet steam through the condensation means to allow condensation to occur and then flows back into the tub.

However, in the case of a dish washing machine adopting a conventional exhaust type drying method, there is a disadvantage in that the hot and humid humid steam inside the tub is discharged directly to the outside, causing discomfort to the user. In addition, since the high temperature and high humidity steam is discharged directly to the outside, there is a high risk of burns to the user or child.

In addition, while the high temperature and high humidity steam is discharged, water vapor condenses near the wet steam outlet and falls to the floor, resulting in a wet floor. Furthermore, there is a risk of the user slipping due to the condensate falling to the indoor floor, condensed water accumulated in the indoor floor or corners may be the main cause of mold.

In addition, in the conventional circulation drying method, there is a disadvantage that the wet steam is not sufficiently condensed due to the small size of the condensation means. In addition, due to the small size of the condensation means, not only does the drying time take longer, but also an additional condensation device is required.

The present invention has been proposed to solve the above problems, and an object of the present invention is to provide a dishwasher for rapidly condensing the wet steam discharged by improving the condensation apparatus provided in the dishwasher.

In addition, an object of the present invention is to provide a dishwasher which allows the wet steam discharged during the drying process to be quickly condensed, thereby reducing the drying time.

In addition, it is an object of the present invention to provide a dishwasher that allows the discharged wet steam to quickly condense, so that the user does not feel uncomfortable due to the discharged air, and the risk of burn is eliminated.

It is also an object to provide a dishwasher in which an additional condensation device is not required by improving the condensation structure.

Dishwasher according to the present invention for achieving the above object is a tub for forming a dish washing; A door rotatably coupled to the tub, the door including a door cover forming a front appearance, and a door liner coupled to a rear of the door cover; A condenser interposed between the door cover and the door liner to condense the wet steam; and a fan assembly that sucks the wet steam inside the tub and supplies the wet steam to the condenser.

In another aspect the dishwasher according to the present invention includes a tub; A door for selectively opening and closing the front surface of the tub; A fan assembly mounted inside the door and including a fan for sucking moisture in the tub, a fan housing accommodating the fan and mixing the wet steam and the outside air, and a fan member including an opening and closing member for selectively communicating with the tub and the fan housing ; A condenser is provided inside the door and condenses the fluid discharged from the fan assembly by heat transfer through the door.

By the above configuration, the wet steam discharged in the drying process is quickly condensed.

In addition, the wet steam discharged during the drying process is rapidly cooled has an effect that the drying time is shortened.

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention will be described in detail. However, the spirit of the present invention is not limited to the embodiments in which the present invention is presented, and those skilled in the art who understand the spirit of the present invention can easily make other embodiments by adding, changing, deleting, and adding components within the scope of the same idea. It may be suggested, but this will also fall within the scope of the spirit of the present invention.

1 is a side cross-sectional view schematically showing a dish washing machine according to the present invention, Figure 2 is an enlarged view of a portion A shown in FIG.

1 and 2, the dishwasher 100 according to the present invention includes a cabinet 101 forming an external shape, a tub 110 protected by the cabinet 101, and a washing tank formed therein, and A door 270 that is rotatably provided on the front surface of the tub 110 to open and close the washing tub, and a sump 170 which is formed at the center of the bottom surface of the tub 110 and stores the washing water.

In addition, the dishwasher 100 is provided in the sump 170 and the washing pump 180 for pumping the washing water at a high pressure, and the shaft is connected to the washing pump 180 to drive the washing pump 180 A motor 190 is included.

In detail, the door 270 is composed of a door cover 272 forming a front appearance and a door liner 271 coupled to the rear of the door cover. A condensation unit, which will be described later, is interposed between the door cover 272 and the door liner 271.

In addition, the washing pump 180 is stopped when the opening of the door 270 is detected in the high temperature washing step. When the closing of the door 270 is detected, the washing pump 180 is controlled to be driven again after a predetermined time elapses.

In addition, the dishwasher 100 is provided on the water guide 140 and the upper surface of the sump 170, which is a path for the washing water pumped from the washing pump 180 is moved, formed on the bottom surface of the washing tank A lower nozzle 160 for spraying the washing water upwardly, branched from one point of the water guide 140, an upper nozzle 150 positioned at an approximately central portion of the tub 110, and a ceiling of the tub. Is formed on the site includes a top nozzle 155 for spraying the washing water vertically downward.

Meanwhile, a condenser 300 is provided between the door cover 272 and the door liner 271, and a fan assembly that sucks wet steam inside the tub 110 is connected to an upper side of the condenser 300. In detail, the fan assembly includes a fan 260 that sucks air in the tub 110 and discharges it to the condenser 300, and a fan housing 250 in which the fan 260 is accommodated.

In addition, the condensation unit 300 is in close contact with the rear surface of the door cover 272 to allow the outside air and the wet steam inside the condensation unit 300 to exchange heat through the door cover 272. That is, the indoor air outside the door 270 and the wet steam inside the condensation unit 300 exchange heat by heat conduction through the wall surface of the door cover 272 and the condensation unit 300. Here, the condensation unit 300 may be formed in a structure in which a front surface is opened and a front surface to be opened is sealed by the door cover 272, so that heat conduction may be quickly performed. That is, the door cover 272 may form part of the condensation unit 300.

In detail, the front surface of the door cover 272 is exposed to the outside, the rear surface is in close contact with the front surface of the condensation unit 300, or exposed to the high temperature steam flowing through the condensation unit 300. Therefore, outside of the room temperature air and the high temperature steam in the condensation unit 300 are exchanged through the door cover 272 to condense.

As described above, the door cover 272 which is one component of the door 270 is in close contact with one surface of the condensation unit 300 or forms one surface of the condensation unit 300, thereby providing additional condensation for condensation. No device is required, and the configuration of the condensation means can be simplified.

Here, the condensation unit 300 is provided as a preferred embodiment provided inside the door, but this is only exemplary. That is, in addition to the door cover 272, the cabinet 101 may be attached to one side of the cabinet 101 or the cabinet 101 may be a component of the condenser 300. In this case, the condensation unit 300 will be installed between the cabinet 101 and the tub 110.

On the other hand, the operation of the dishwasher 100 according to the present invention will be described.

First, the user opens the door 270 of the dishwasher 100 and pulls the upper rack 120 and / or lower rack 130 to the outside of the washing tank. In addition, dishes are stored in the racks 120 and 130. Then, the door 270 is closed and power is applied to the dishwasher.

On the other hand, when power is applied to the dishwasher 100 and a washing step is performed, washing water flows into the sump 170, and when the washing water inflow step is completed, the motor 190 operates. In addition, by rotating an impeller (not shown) provided in the washing pump 180 connected to the motor 190, the washing water is alternately pumped to the lower nozzle 160 or the water guide 140.

In addition, the wash water pumped to the water guide 140 is finally moved to the top nozzle 155, the upper nozzle 150 is injected into the washing tank. In addition, the dishes stored in the racks 120 and 130 are washed by the sprayed washing water.

However, when the door 270 is opened while the dishwasher 100 performs the high temperature washing step, the cool air introduced into the tub 110 is expanded to wash water stored in the sump 170. In order to prevent overflow, the washing pump 180 is restarted after a predetermined time elapses.

In other words, when hot washing water is sprayed, when the hot water comes into contact with the low temperature air in the tub 110, the washing water collected in the sump 170 overflows due to air expansion. In order to prevent this, in the high temperature washing step, the door 270 may be opened or closed, and when the door 270 is opened, the washing pump 180 may be stopped and then restarted after a predetermined time elapses.

In addition, the top nozzle 155 sprays the washing water vertically downward, and the upper nozzle 150 sprays the washing water vertically upward, thereby washing the dishes stored in the upper rack 120.

In addition, the lower nozzle 160 is sprayed with the washing water vertically upward, the dishes stored in the lower rack 130 is washed. In addition, by forming an injection hole in the bottom surface of the upper nozzle 150, the washing water is sprayed in both the up and down directions, it can be configured to simultaneously wash the upper side of the tableware accommodated in the lower rack (130).

In addition, the dirty washing water collected in the sump 170 in the washing process is filtered foreign matter by the filter. In addition, the washing water filtered with foreign matter is discharged to the outside of the dishwasher 100 through a drain pump when the washing step is finished and the draining step is started.

In addition, when the washing water is discharged to the outside, clean washing water is introduced into the sump 170 again through an inlet, and sprayed through the spray nozzles 150 and 160 in the same manner as the washing step. The dishware is rinsed by the sprayed clean water.

In addition, when the rinsing step is completed, by going through the drying step, the washing operation is completed.

3 is a front view illustrating a door liner of the dish washing machine according to the first embodiment of the present invention, and FIG. 4 is an external perspective view showing the condensation unit structure of the dish washing machine according to the first embodiment of the present invention.

3 and 4, the dishwasher according to the present invention is characterized in that the wet steam discharged from the tub 110 is introduced into the condensation unit 300 in a state in which it is mixed with the outside air.

In detail, the front of the door liner 271 forming the back of the door 270 is a fan assembly for sucking the wet steam in the tub 110, and a condensation unit connected to one side of the fan assembly to condensed wet steam 300 is mounted.

In more detail, the fan assembly selectively opens and closes a hole formed in the fan housing 250, the fan 260 accommodated in the fan housing 250, and the fan housing 250 and the door liner 271. The blower cover 256 and the actuator 257 which drives the blower cover 256 are comprised. In addition, an outside air inlet 255 is formed at one side of the front surface of the fan housing 250, and a mixture gas outlet 254 is formed at the other side.

In detail, indoor air is introduced into the fan housing 250 through the outside air inlet 255, and the indoor air is air existing in a space between the door cover 272 and the door liner 271. In addition, the condensation unit 300 is connected to the mixed gas discharge port 254.

In more detail, the condensation unit 300 is in close contact with the rear surface of the door cover 272 as described above, or has a structure in which the front part is opened and sealed by the door cover 272.

The condenser 300 may include a condensation chamber 310 having a hollow case, an inlet 320 provided on one side, preferably an upper side, of the condensation chamber 310, and the condensation chamber 310. It consists of a discharge port 330 provided on the other side, preferably the lower side.

In detail, the lower end of the condensation chamber 310 is formed to be inclined toward the discharge port 330 as shown, so that the condensed water is guided to the discharge port 330.

In addition, at least one flow guide 340 is formed in the condensation chamber 310. In detail, the plurality of flow path guides extending from the left side and the right side of the condensation chamber 310 are alternately arranged. In other words, the flow path guide 340 is arranged such that the flow path inside the condensation chamber 310 has an “S” shape.

On the other hand, the suction port 320 is connected to the mixed gas discharge port 254 of the fan housing 250, the discharge port 330 extends toward the bottom of the door to face the bottom surface of the tub 110. In other words, the gas including the condensed water discharged through the discharge port 330 is re-introduced to the bottom surface of the tub 110.

A drying process of the dish washing machine having the above configuration will be described.

When the drying process is started, high temperature wet steam is formed inside the tub 110. In addition, when the fan 260 is operated, wet steam inside the tub 110 is sucked into the fan housing 250. In addition, outside air is sucked into the outside air inlet 255 of the fan housing 250.

In detail, the wet steam and the outside air are mixed in the fan housing 250, and the mixed fluid is introduced into the condensation unit 300 through the outlet 254 of the fan housing 250. In addition, the mixed fluid introduced into the condenser 300 is cooled while descending along the flow path guide 340. More specifically, the front surface of the condensation unit 300 is in close contact with the door cover 272, or the front surface of the condensation unit 300 is sealed by the door cover 272, through the door cover 272 The outside air and the mixed fluid undergo heat exchange by heat conduction.

In addition, a portion of the mixed fluid descending to the bottom of the condensation unit 300 through the heat exchange process is condensed. The condensed water and steam are introduced into the tub again through the outlet 330 of the condenser 300. That is, the drying process is performed through a circulation process in which the wet steam inside the tub 110 passes through the fan housing 250 and the condensation unit 300 and flows back into the tub 110.

5 is a front view illustrating a door liner of the dish washing machine according to the second embodiment of the present invention.

Referring to FIG. 5, the dishwasher according to the second embodiment of the present invention is provided with an external air introduction unit 280 for suctioning external air.

In detail, in the first embodiment, the wet steam inside the tub 110 is mixed with indoor air sucked through the outside air inlet 280 after undergoing primary condensation. After the wet steam is mixed with the indoor air sucked through the outdoor air inlet 280, characterized in that the condensation process.

Referring to FIG. 5, the condensation structure according to the present invention includes a door liner 271, a fan assembly attached to the front of the door liner 271, and sucking moisture vapor inside the tub 110, and a discharge port of the fan assembly. Condensation unit 300 is connected to 254, and the outside air inlet 280 is connected to one side of the fan assembly to suck the outside air.

In the first embodiment, the outside air inlet 255 is formed on one side of the front surface of the fan housing 250, but in the present embodiment, the outside air inlet 280 is connected to the outside air inlet 255.

In detail, since the outside air inlet 280 is separately provided at the front of the door liner 271, and the suction port is provided at the bottom of the door 270, it is easy to inhale the air distributed in the place where the dishwasher is installed.

Since the configuration of the other parts and the condensation process of the wet steam is the same as in the first embodiment, a description thereof will be omitted.

6 is a front view illustrating a door liner of the dish washing machine according to a third embodiment of the present invention, and FIG. 7 is an external perspective view illustrating a structure of the condenser according to the third embodiment of the present invention.

6 and 7, the dish washing machine according to the present embodiment has a form in which a cross section of the discharge hole 430 of the condenser 400 is expanded, so that condensation or condensation does not occur near the discharge hole. .

In detail, the condensation structure of the dish washing machine according to the present invention includes a fan assembly for sucking wet steam in the tub 110, an outside air inlet 280 connected to one side of the fan assembly, and sucking outside air, and a discharge hole of the fan assembly. Condensation unit 400 is connected to the (254). Since this configuration is the same as the second embodiment, a detailed description thereof will be omitted.

Meanwhile, the condenser 400 has a condensation chamber 410, a suction port 420 provided above the condensation chamber 410, a discharge duct 430 provided below the condensation chamber 410, and the At least one flow path guide 440 formed in the condensation chamber 410 is included.

In detail, the discharge duct 430 of the condenser 400 has a shape in which a cross section is expanded as shown, and the cross-sectional area of the discharge port 431 is formed to be wider than the cross-sectional area of the portion where the discharge duct 430 starts. In addition, the discharge hole 431 is exposed to the room, not inside the tub 110. Accordingly, the gas discharged through the discharge duct 430 is discharged into the room without being re-introduced into the tub 110.

In addition, the pressure of the mixed gas falling along the discharge duct 430 passes through the discharge port 431. In other words, the pressure of the gas drops as the cross section of the discharge port 431 is expanded. As a result, the fluid discharged through the discharge port 431 maintains the gas state. In addition, since the fluid discharged through the discharge port 431 maintains the gas state, condensation may not occur at the discharge port 431.

By the dishwasher having the above configuration, there is an effect that the wet steam discharged in the drying process is quickly condensed.

In addition, the wet steam discharged during the drying process is rapidly cooled has an effect that the drying time is shortened.

In addition, the wet steam discharged during the drying process is rapidly cooled has the effect that the user does not feel uncomfortable.

In addition, the wet steam discharged during the drying process is rapidly cooled has the effect of eliminating the risk of burns.

In addition, by allowing a part of the door to function as a condensation barrier, there is an effect that no additional condensation device is required.

In addition, the condensation phenomenon does not occur in the wet steam outlet portion, the condensed water does not fall to the indoor floor, the floor is wet, there is an effect that the user slipping phenomenon is prevented.

In addition, due to the condensation water falling to the floor there is an effect that the phenomenon of forming the mold in the corner is prevented.

Claims (18)

A tub having a space for washing dishes; A door rotatably coupled to the tub, the door including a door cover forming a front appearance, and a door liner coupled to a rear of the door cover; A condenser interposed between the door cover and the door liner to condense wet steam; and And a fan assembly configured to suck the wet steam inside the tub and supply the wet steam to the condenser. The method of claim 1, And at least one flow path guide for allowing moisture vapor to be formed in the condensation unit. The method of claim 1, One side of the condenser is in communication with the outlet of the fan assembly, The other side is in communication with the inside of the tub dishwasher, characterized in that. The method of claim 1, The condenser is in close contact with the back of the door cover dishwasher, characterized in that. The method of claim 1, The front of the condensation unit is open, the dishwasher, characterized in that sealed by the door cover. The method of claim 1, One side of the fan assembly is a dishwasher, characterized in that the outside air inlet for suction of the outside air is formed. The method of claim 1, And an outside air inlet connected to one side of the fan assembly to allow outside air to be sucked into the fan assembly. The method of claim 1, The condenser is provided with a suction port and a discharge port, respectively, the suction port is connected to the discharge port side of the fan assembly, the discharge port is characterized in that the discharge port extends to the lower side of the door. The method of claim 8, Discharge port of the condensation unit is a dishwasher, characterized in that the shape is expanded toward the end. Tub; A door selectively opening and closing the front surface of the tub; A fan assembly mounted inside the door and including a fan for sucking moisture in the tub, a fan housing accommodating the fan and mixing the wet steam and the outside air, and a fan member including an opening and closing member for selectively communicating with the tub and the fan housing ; And a condenser provided inside the door and configured to condense the fluid discharged from the fan assembly by heat transfer through the door. In claim 10, The pan is a dishwasher, characterized in that the double suction centrifugal fan. The method of claim 10, The outside air inlet is formed on one side of the fan housing at a point away from the center of the fan so that the wet steam and the outside air is mixed in the fan housing and then sucked into the fan. The method of claim 12, One end is connected to the outside air inlet, the other end of the dishwasher further comprises an outdoor air inlet exposed to the installation space of the tub. The method of claim 10, The lower end of the condensation unit is dishwasher, characterized in that formed to be inclined downward. The method of claim 10, And a plurality of flow path guides inclined downwardly to guide the flow of the mixed fluid flowing in the condenser. The method of claim 15, The flow path guide is alternately extending from the left and right of the condensation unit. The method of claim 10, The door has a door cover exposed to the outside, And a door liner exposed to the inner space of the tub. The method of claim 17, The condensation unit is provided in the space between the door liner and the door cover, Discharge port of the condensation unit is connected to the inside of the tub or dishwasher, characterized in that exposed to the external space.

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