KR20070040465A - A dish washer and cotrolling method thereof - Google Patents

Abstract

The present invention relates to a dishwasher, and in particular, by operating a heating wire mounted on the tub wall during the drying process of the dishwasher, it is possible to efficiently dry the stored dishes and to prevent condensation on the tub wall. The present invention relates to a dishwasher and a control method thereof.

The dishwasher according to the present invention includes a sump in which washing water is stored; A heater installed at one side of the sump to heat the washing water to a high temperature; A tub installed on an upper portion of the sump and having a washing tank formed therein; And a heating wire mounted on the tub to radiate heat.

By the dishwasher as proposed, the heating wire mounted on the tub wall during the drying process has the advantage that the high-temperature wet steam is efficiently discharged to the outside of the tub.

In addition, by allowing the wash water on the wall of the tub to be completely removed during the drying process, there is an advantage that does not reduce the appearance and hygiene of the washing machine.

In addition, by allowing the drying of the stored dishes efficiently, there is an advantage that can increase the reliability of the user.

 Dishwasher, Tub, Heated Wire

Description

A dish washer and cotrolling method

1 is a cross-sectional view illustrating a dish washer according to the spirit of the present invention.

Figure 2 is a perspective view schematically showing a tub according to the spirit of the present invention.

3 is a heating wire control circuit diagram of the dish washing machine according to the spirit of the present invention.

4 is a flowchart illustrating a control method of the dish washing machine according to the spirit of the present invention.

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

100: dishwasher 110: tub 111: door

120: upper rack 130: lower rack 140: water guide

150: upper nozzle 155: top nozzle 160: lower nozzle

170: sump 180: washing pump 180: washing pump

181: washing motor 190: heating wire 300: microcomputer

The present invention relates to a dishwasher, and in particular, by operating a heating wire mounted on the tub wall during the drying process of the dishwasher, it is possible to efficiently dry the stored dishes and to prevent condensation on the tub wall. The present invention relates to a dishwasher and a control method thereof.

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, a sump mounted on the bottom of the tub to store washing water, and a rack in which dishes are stored. In addition, a heater is installed inside or outside the sump to heat the washing water stored in the sump to a high temperature.

In the washing course of the dish washing machine, the high temperature washing process is performed by washing water stored in the sump to a high temperature by the heater, and the high temperature washing water is moved to the spray nozzle by the pumping action of the washing pump mounted inside the sump. Then, the high temperature wash water moved to the injection nozzle is performed by spraying at a high pressure through the injection hole formed in the injection nozzle end.

In addition, during the drying process of the dishwasher, hot air flows into the tub to absorb moisture from the dish. Therefore, the air in the tub is changed from the high temperature dry state to the high temperature and high humidity state. Then, the air in the hot and humid state is discharged to the outside through the door liner mounted on the inner side of the door.

On the other hand, in the conventional dishwasher there is a problem that the high temperature wet steam generated during the drying process is not efficiently discharged to the outside of the tub to reduce the efficiency of drying the dishes.

In addition, after the drying process is terminated because the wash water is buried on the wall of the tub to harm the aesthetics, there is a problem that is not sanitary.

In addition, there is a problem that the reliability of the drying performance of the dishwasher is lowered because the drying of the stored dishes is not performed efficiently.

The present invention has been proposed to solve the above problems, it is to propose a dish washing machine and a control method for allowing the hot wire to be efficiently discharged to the outside of the tub by operating the heating wire mounted on the tub wall during the drying process. The purpose.

In addition, the object of the present invention is to propose a dish washing machine and a method of controlling the same, by which the washing water on the wall of the tub is completely removed during the drying process.

In addition, an object of the present invention is to propose a dish washing machine and a method of controlling the same, by which drying of stored dishes can be efficiently performed, thereby increasing user reliability.

The dishwasher according to the present invention for achieving the above object is a sump in which the washing water is stored; A heater installed at one side of the sump to heat the washing water to a high temperature; A tub installed on an upper portion of the sump and having a washing tank formed therein; And a heating wire mounted on the tub to radiate heat.

The control method of the dish washing machine according to another aspect of the present invention is characterized in that during the drying process of the dishwasher, the heating wire installed on the wall surface of the tub is operated, and the wet steam in the tub is removed by the heat emitted by the heating wire.

By the dishwasher and its control method as proposed, there is an advantage that the hot wire mounted on the tub wall is operated during the drying process so that the high-temperature wet steam is efficiently discharged to the outside of the tub.

In addition, by allowing the wash water on the wall of the tub to be completely removed during the drying process, there is an advantage that does not reduce the appearance and hygiene of the washing machine.

In addition, by allowing the drying of the stored dishes efficiently, there is an advantage that can increase the reliability of the user.

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 cross-sectional view illustrating a dish washer according to the spirit of the present invention, and FIG. 2 is a perspective view schematically showing a tub according to the spirit of the present invention.

1 and 2, the dishwasher 100 according to the present invention forms an outer shape, and a tub 110 having a washing tank formed therein and mounted on a wall of the tub 110 to dissipate a predetermined heat. A heating wire 190, a door 111 formed on the front surface of the tub 110 to open and close the washing tub, and a sump 170 formed at the center of the bottom surface of the tub 110 to store the washing water. .

In addition, the washing pump 180 is formed inside the sump 170 to pump the washing water stored in the sump 170 at a high pressure, and is attached to the lower side of the washing pump 180 to provide the washing pump 180. A driving washing motor 181 is included.

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, and is formed on the bottom surface of the washing tank to wash water upwards. A lower nozzle 160 for spraying the water, a branch branched from one point of the water guide 140, an upper nozzle 150 positioned at an approximately central portion of the tub 110, and formed on a ceiling of the tub and vertically formed. A top nozzle 155 for spraying the washing water downward is included.

In addition, the upper rack 120 mounted on the upper side of the upper nozzle 150 to wash the dishes by the upper nozzle 150, and the lower nozzle 160 to wash the dishes by the lower nozzle 160. Lower rack 130 is mounted to the upper side of the) is included. In addition, the upper rack 120 is supported by a predetermined rail provided on the inner surface of the tub 110, and performs the front and rear movement.

In detail, the heating wire 190 is wound a predetermined number of times along the wall surface of the tub 110, the other surface other than the surface in contact with the heating wire 190 and the tub 110 is formed of silver foil or aluminum tape 191 Taping).

In addition, in the present invention, the heater mounted on the inside or outside of the heating wire 190 and the sump 170 may be selectively operated by a predetermined microcomputer (to be described later). The process of selectively operating the heating wire 190 and the heater by the microcomputer will be described later with reference to the accompanying drawings.

In addition, the taping is to improve the heat exchange efficiency by preventing the leakage of air by further sealing between the tub 110 and the hot wire 190.

Hereinafter, with reference to the operation of the high-temperature washing and drying for the operation of the dishwasher 100 according to the present invention will be described.

First, the user opens the door 111 of the dishwasher and pulls the upper rack 120 and / or the lower rack 130 to the outside of the washing tank. In addition, dishes are stored in the racks 120 and 130. Then, the door 111 is closed and power is applied to the dishwasher.

In addition, the washing water flows into the sump 170, and the washing water stored in the sump 170 is heated to a high temperature by a predetermined heater (not shown) mounted on the inner or outer surface of the sump 170.

When the washing water stored in the sump 170 is heated to a high temperature for a predetermined time, the impeller provided inside the washing pump axially connected to the washing motor 181 rotates, so that the washing water is lower nozzle 160 or the washing machine. Pumped alternately to the water guide 140.

In addition, the high temperature wash water pumped into the water guide 140 is finally moved to the top nozzle 155 and the upper nozzle 150 and sprayed into the washing tank. In addition, high temperature washing of the dishes accommodated in the racks 120 and 130 is performed by the sprayed washing water.

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 the washing water vertically upward, the dishes stored in the lower rack 130 is washed. 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.

When the washing water is discharged to the outside, clean washing water is introduced into the sump 170 and is injected through the spray nozzles 150 and 160. Then, rinsing of the dishes stored by the sprayed clean washing water is performed.

In addition, when the rinsing step is completed, a drying process is performed to remove the washing water on the tableware by introducing hot air into the tub 110.

In the drying step, high temperature air is introduced into the tub 110 to absorb moisture contained in the dishes. Therefore, the air in the tub 110 is converted from the high temperature dry state to the high temperature and high humidity state.

In detail, during the drying process of the dishwasher, heat is emitted from the heating wire 190 mounted on the wall surface of the tub 110 according to a control signal of a predetermined microcomputer.

In addition, the high temperature wet steam generated in the tub 110 is rapidly moved to the upper portion of the tub 110 by the heat emitted from the heating wire 190, the wet steam outlet of the door liner formed inside the door 111 ( It is discharged to the outside of the tub through (not shown).

3 is a hot wire control circuit diagram of the dish washing machine according to the spirit of the present invention.

Referring to FIG. 3, the heating wire control circuit of the dish washing machine according to the present invention heats the washing water stored in the sump 170 to a high temperature by generating heat at the power supply unit 200 to which a predetermined AC voltage is input and the voltage. The heater 182, the first relay RY1 for controlling the operation of the heater 182, the first transistor Tr1 for controlling whether the first relay RY1 is driven, and the power supply unit 200. Whether the heating wire 190 for generating heat on the tub 110 wall with a voltage applied from the second, the second relay RY2 for controlling the operation of the heating wire 190, and whether the second relay RY2 is driven The second transistor Tr2 for controlling and the microcomputer 300 for controlling the operation of the first and second transistors Tr1 and Tr2 are included.

In detail, the microcomputer 300 is connected to the base terminals of the first transistor Tr1 and the second transistor Tr2, and the emitter terminals of the first and second transistors Tr1 and Tr2 are grounded.

The collector terminal of the first transistor Tr1 is connected to the first relay RY1 and the first diode D1, and the collector terminal of the second transistor Tr2 is connected to the second relay RY2 and It is connected to the second diode D2.

In addition, one side of the first and second relays RY1 and RY2 is connected to a voltage of Vry.

On the other hand, the operation of the heater control circuit of the dishwasher according to the spirit of the present invention will be described.

When voltage is applied to the power supply unit 200 and a dish washing course is input by the user, a process of preliminary washing, main washing, rinsing and drying of the dish is performed according to the control signal of the microcomputer 300. .

In detail, in the high temperature cleaning process, the microcomputer 300 sends an electrical signal to the first transistor Tr1 to short the collector terminal and the emitter terminal of the first transistor Tr1 to short the voltage of Vry. It is applied to the first relay RY1.

In addition, the first relay RY1 is operated to form a flow path of a current applied from the power supply unit 200 to operate the heater 182. That is, the washing water stored in the sump 170 is heated to a high temperature due to the operation of the heater 182, so that a high temperature washing in which high temperature washing water is sprayed is performed.

On the other hand, when the dishwasher is operated in a drying process, the microcomputer 300 sends an electric signal to the second transistor Tr2 to short-circuit the collector terminal and the emitter terminal of the second transistor Tr2 so that the power supply of the Vry is short. A path of current flowing from it is formed.

In addition, the second relay RY2 is turned on and power applied from the power supply unit 200 is transferred to the heating wire 190, and heat is radiated from the heating wire 190.

In addition, the drying process of the washing machine is efficiently performed by the heat emitted from the hot wire 190, and the washing water on the wall surface of the tub 110 is removed.

4 is a flowchart illustrating a control method of the dish washing machine according to the spirit of the present invention.

First, a course and an option including a high temperature washing and drying process are selected by a user, and when an operation button is input (S100), washing water flows into the sump 170 (S110).

Then, the heater 182 is operated by the microcomputer 300 so that the washing water stored in the sump 170 is heated to a high temperature, and pumped at a high pressure to spray the hot water to remove dirt from the dishes. do. When the washing process is completed, the washing water used for washing is discharged to the outside of the washing machine, and a rinsing process is performed in which clean washing water is introduced again and sprayed into the tub (S120).

In addition, when the rinsing process is completed, the washing water collected in the sump 170 is discharged to the outside of the washing machine, a drying process is performed to remove the washing water in the dishes by the introduction of hot steam into the tub 110. (S130).

Then, when the drying process is entered, the hot wire 190 is operated by the microcomputer 300 for a predetermined time so that the wet steam inside the tub 110 is quickly discharged to the outside (S140). Then, when the wet steam in the tub 110 is completely discharged, the drying process of the dishwasher is terminated (S150).

The drying process of the dish washing machine is more efficiently performed by the heating wire mounted on the tub wall as described above, and the washing water on the wall of the tub is removed.

By the dishwasher and its control method as proposed, there is an advantage that the hot wire mounted on the tub wall is operated during the drying process so that the high-temperature wet steam is efficiently discharged to the outside of the tub.

In addition, by allowing the wash water on the wall of the tub to be completely removed during the drying process, there is an advantage that does not reduce the appearance and hygiene of the washing machine.

In addition, by allowing the drying of the stored dishes efficiently, there is an advantage that can increase the reliability of the user.

Claims (9)

Sump in which washing water is stored; A heater installed at one side of the sump to heat the washing water to a high temperature; A tub installed on an upper portion of the sump and having a washing tank formed therein; And And a hot wire mounted on the tub to dissipate heat. The method of claim 1, The heating wire is installed on the inner wall of the tub, the dishwasher, characterized in that the bending is mounted a plurality of times. The method of claim 1, The heater and the heating wire is dishwasher, characterized in that selectively operated by a predetermined microcomputer. The method of claim 1, The hot wire is dishwasher, characterized in that operated during the drying process of the dishwasher. The method of claim 1, The hot wire is dishwasher, characterized in that installed on the wall surface of the tub by a taping process. During the drying process of the dishwasher, a heating wire installed on the wall of the tub is operated, the control method of the dishwasher to remove the moisture vapor in the tub by the heat emitted by the heating wire. The method of claim 6, When the hot wire is operated, the operation of the heater installed on one side of the sump is stopped. The method of claim 6, The heating wire is a control method of the dishwasher, characterized in that the taping and installed on the inner wall surface of the tub. The method of claim 6, The heating wire is bent a plurality of times, the control method of the dish washing machine, characterized in that installed on the upper wall of the tub.

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