KR102448862B1 - Dish washer and controlling method thereof - Google Patents

Abstract

The present invention relates to a dishwasher and a control method of the dishwasher, and includes a washing tank having an upper receiving part and a lower receiving part in which dishes are loaded, a top spraying part positioned above the upper receiving part, the upper receiving part and the lower part An upper spraying part positioned between the accommodating parts, a lower spraying part positioned under the lower accommodating part, a control panel for selecting and displaying the tableware loading state of the upper and lower accommodating parts, and the top spraying part, the upper part and a control unit for washing dishes loaded in the upper or lower accommodating unit by varying the operation time of the spraying unit and the lower spraying unit, and setting the upper and lower operation modes according to a user's selection setting step, and a spraying step of spraying the washing water by varying the operation time of each of the top spraying part, the upper spraying part, and the lower spraying part according to the setting of the setting step.

Description

DISH WASHER AND CONTROLLING METHOD THEREOF

The present invention relates to a dish washing machine, and more particularly, to a dish washing machine and a method of controlling the dish washing machine, which enable intensive washing of a position where a lot of dishes are loaded according to the position of the dishes loaded in the dish washing machine.

BACKGROUND ART In general, a dishwasher is a device that sprays washing water at a high pressure to stored dishes, washes them, and then dries them. Specifically, the dishwasher operates so that washing water is sprayed at high pressure into the washing 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 residues on the surface of the dishes.

Such a dishwasher is configured to filter food waste contained in the washing water by a filter, recycle the used washing water, and dissolve the detergent into the washing water, so that the food waste can be smoothly separated. In addition, recently, dish washing machines that increase the efficiency of washing by increasing the temperature of washing water by a heater or generating steam have been widely used.

The dishwasher according to the prior art includes a case forming an external shape, a washing tub provided inside the case and forming a washing space for dishes, and a washing water provided under the washing tub to supply, collect, circulate, and drain washing water for washing dishes. It is provided so as to be drawn out between the driving unit, the lower/upper/top spraying part that sprays the washing water supplied by the driving part onto the dishes, and the lower/upper/top spraying part inside the washing tub, and is selectively loaded according to the type and size of the dishes. and a second lower/upper/top compartment that can be

Meanwhile, in order for a user to wash dishes using the dishwasher, the user opens the door of the dishwasher, takes out one of the accommodating units inside the washing tub, stores the dishes in the withdrawn accommodating unit, and stores the extracted accommodating unit in the dishwasher. After pushing it into the washing tub, close the door to store the dishes.

Thereafter, when the dishwasher is operated, washing water is individually or simultaneously supplied to the upper/lower/top spraying units according to the operation of the driving unit, and the dishes loaded in the lower/upper/top receiving units are washed.

On the other hand, although various courses for washing dishes in the dish washing machine according to the prior art are provided, courses according to the dish loading state of the storage unit in which the dishes are loaded are not provided.

That is, in the case of a dish washing machine according to the related art, a plurality of accommodating parts such as lower/upper/top accommodating parts may be provided, and the dishes may be concentrated in a specific accommodating part for loading dishes. However, there is a problem in that the upper/lower/top spraying units provided in the dishwasher according to the prior art wash dishes at the same cycle or spray pressure regardless of the loading state of the dishes, thereby reducing dishwashing efficiency.
The technology that is the background of the present invention is disclosed in Patent Publication No. 10-2013-0033811 (2013.04.04.).

The present invention has been devised to solve the above problems, and when the dishes stored in the dishwasher are concentrated in a specific storage unit, the dish washing machine and the dish washing machine are provided so that the dishes are concentrated and the loaded storage unit is intensively washed. The purpose is to provide a control method.

A dish washing machine according to an embodiment of the present invention for achieving the above object includes a washing tub provided with an upper receiving unit and a lower receiving unit for loading dishes, a top spraying unit positioned above the upper receiving unit, and the upper receiving unit and an upper spraying part positioned between the lower accommodating part, a lower spraying part positioned under the lower accommodating part, a control panel for selecting and displaying the tableware loading state of the upper accommodating part and the lower accommodating part, and the top spraying part , it is preferable to include a control unit for washing the dishes loaded in the upper accommodating part or the lower accommodating part by varying the operating times of the upper spraying part and the lower spraying part.

The control panel includes an operation unit having an upper/lower selection button for selecting a loading state of the upper housing unit or the lower housing unit, and an upper/lower selection lamp displaying a selection according to the upper/lower selection button. It is preferable to provide a display unit that

In addition, the control method of the dishwasher according to an embodiment of the present invention for achieving the above object is a washing tank provided with an upper receiving part and a lower receiving part on which dishes are loaded, and a top spraying part located above the upper male part. , a control of a dishwasher including an upper spraying part positioned between the upper receiving part and the lower receiving part, a lower spraying part positioned below the lower receiving part, and a driving part selectively supplying wash water to each of the spraying parts. In the method, a setting step of setting the upper operation mode and the lower operation mode according to a user's selection, the operation of each of the top injection unit, the upper injection unit, and the lower injection unit according to the setting of the setting step is timed It is preferable to include a spraying step of spraying the washing water by changing the .

In the upper operation mode, it is preferable that the operation time of the top injection part and the upper injection part is longer than the operation time of the lower injection part.

In the lower operation mode, it is preferable that the operation time of the upper injection part and the lower injection part is longer than the operation time of the top injection part.

In the setting step, when the upper operation mode or the lower operation mode is not set, the spraying step of spraying the washing water by setting each operation time of the top spraying unit, the upper spraying part, and the lower spraying part more It is preferable to include

The driving unit includes a switching valve for changing the flow path of the washing water to the top injection part, the upper injection part, and the lower injection part, and the switching valve includes the top injection part, the upper injection part, and the selected accommodating part. It is preferable to form a different opening/closing time of the flow path supplied to the lower injection unit.

It is preferable to further include a notification step of displaying the contents set according to the setting in the setting step to the user.

According to the dishwasher and the control method of the dishwasher according to the present invention, when dishes stored in the dishwasher are concentrated in a specific storage part, the washing efficiency of the dishwasher is improved by enabling the dishes to be concentrated and the loaded storage part to be intensively washed. There is an effect that can make it happen.

1 is a schematic diagram schematically illustrating an internal structure of a dishwasher according to the present invention.
2 is a perspective view illustrating a driving unit of the dishwasher according to the present invention.
3 is an exploded perspective view showing the heater assembly of the dishwasher according to the present invention.
4 is a block diagram showing the configuration of a dishwasher according to the present invention.
5 is a flowchart illustrating an operation mode setting of the dishwasher according to the present invention.
6 is a flowchart illustrating the operation of the dishwasher according to the present invention.

Hereinafter, a dish washing machine and a method for controlling the dish washing machine according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

In describing the present invention, the names of each defined component are defined in consideration of functions in the present invention. Therefore, it should not be construed as limiting the technical components of the present invention. In addition, each name defined for each component may be called another name in the art.

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

1 is a simplified diagram schematically showing the internal structure of a dishwasher according to the present invention, FIG. 2 is a perspective view showing a driving unit of the dishwasher according to the present invention, and FIG. 3 is a perspective view of a heater structure of the dishwasher according to the present invention , Figure 4 is a configuration diagram showing the configuration of the dishwasher according to the present invention.

The present invention relates to a device having a driving unit 160 and a driving unit 160 capable of simultaneously performing a function of moving washing water and a function of heating washing water. The case is shown as an example.

As shown in FIG. 1 , the dishwasher 100 includes a cabinet 110 , a washing tank 120 provided inside the cabinet to provide a washing space, spraying units 124 , 125 , and 126 for spraying washing water to a washing object, It may be provided as a driving unit 160 that supplies washing water to the injection units 124 , 125 , and 126 .

The washing tub 120 may be provided with accommodating parts 121 , 122 , 123 in which the object to be washed is accommodated. It may be provided with a payment 123 , an upper accommodating part 121 provided in an upper region of the washing tub 120 , and a lower accommodating part 122 provided under the upper accommodating part 121 .

Since the washing tub 120 is opened and closed by the door 112 provided on one surface of the cabinet 110, the user opens the washing tub 120 with the door 112 and then places the receiving units 121, 122, and 123 into the washing tub ( 120) can be withdrawn.

On the other hand, on the outer upper portion of the door 112 , a manipulation unit 114 for controlling the operation of the dishwasher 100 , a display unit 115 indicating the operating state of the dishwasher 100 , the manipulation unit 114 and the display unit A control panel 113 including a control unit 190 interlocking with 115 to control each component is provided (refer to FIG. 4 ).

Here, the manipulation unit 114 may be provided with a plurality of buttons (not shown) for selecting a plurality of courses for washing dishes, and additionally loaded in the upper receiving unit 121 or the lower receiving unit 122 of the dishwasher. An upper/lower selection button 114a for selectively concentrating and washing the upper accommodating part 121 or the lower accommodating part 122 may be provided depending on the dish. In addition, a plurality of lamps (not shown) indicating the operating state of the dishwasher may be provided on the display unit 115 , and the upper accommodating part 121 or the lower accommodating part 122 may be selectively concentrated according to a user's selection. An upper/lower indicator lamp 115a indicating that it has been cleaned may be provided (refer to FIG. 4 ).

In addition, a drying module 116 communicating with the washing tub 120 and discharging moisture from dishes dried in the washing tub 120 to the outside of the dishwasher 100 is provided inside the door 112 . The drying module 116 is provided inside the door to provide a drying flow path 117 that connects the outside of the washing tub 120 and the dishwasher 100, and is provided inside the drying flow path 117 to dry the air inside the washing tub 120. A drying fan 118 that moves to the outside of the dishwasher 100 through the flow path 117 is provided.

When the accommodating parts 121, 122, 123 are provided as the top accommodating part 123, the upper accommodating part 121 and the lower accommodating part 122, the spraying parts 124, 125, and 126 are the top accommodating parts 123. The top spraying part 126 which is located in the upper part and sprays washing water to the tower receiving part 123, and the top receiving part 123 and the upper receiving part 121 are located between the top receiving part 123 and the upper receiving part ( It may be provided with an upper spraying part 124 for spraying washing water to 121 , and a lower spraying part 125 for spraying washing water into the lower receiving part 122 located below the lower receiving part 122 . The washing water (the washing water remaining in the washing tank 120 ) sprayed to the washing object by each of the spraying units 124 , 125 , and 126 may be recovered by the sump 130 .

The sump 130 is provided under the washing tub 120 to store washing water, and may be distinguished from the washing tub 120 through the sump cover 135 . The sump cover 135 may be provided with a recovery hole 136 for communicating the inside of the washing tub 120 with the inside of the sump 130 .

Meanwhile, the sump 130 is connected to a water supply source (not shown) through a water supply passage 131 , and the water supply passage 131 may be opened and closed by a water supply valve 132 controlled by the controller 190 . The washing water stored in the sump 130 is discharged to the outside of the dishwasher through the drain passage 133 and the drain pump 134 .

The washing water stored in the sump 130 is supplied to the injection units 124, 125, and 126 through the driving unit 160 and the supply passages 151, 152, and 153, and the supply passages 151, 152, and 153 are connected to the driving unit 160. A connection flow path 155 connected to ), and a lower supply passage 152 connecting the connection passage 155 and the lower injection unit 125 . Here, the upper injection part 124 may be rotatably coupled to the upper supply passage 151 , and the lower injection part 125 may be rotatably coupled to the lower supply passage 152 .

The top supply passage 153 , the upper supply passage 151 and the lower supply passage 152 are provided to branch from the connection passage 155 , and the top supply passage 153 , the upper supply passage 151 , and the lower supply passage 152 . A switching valve 154 for switching the opening and closing of each of the supply passages 151 , 152 , and 153 may be provided at a branch point of .

On the other hand, the control unit 190 controls the switching valve 154 provided in the connection flow path 155 according to the user's selection by the upper/lower button 114a to control the top supply flow path 153 and the upper supply flow path 151 . And it is possible to control the flow rate and supply time of the washing water supplied to the lower supply passage 152 .

The driving unit 160 divides the body 160a fixed inside the cabinet 110 and the space inside the body 160a to form a pumping chamber PC and a heating chamber HC inside the body 160a. 160b), a communication hole 164 provided in the partition wall 160b to communicate the pumping chamber PC and the heating chamber HC, an inlet 165 for connecting the sump 130 and the heating chamber HC, pumping The discharge part 169 connecting the chamber PC and the connection passage 155, the impeller 168 provided in the pumping chamber PC, and the heater assembly 180 provided on the bottom surface of the heating chamber HC can be provided.

As shown in FIG. 2 , the body 160a is provided in a cylindrical shape with an open upper surface and a lower surface, and an upper open surface 161 provided on the upper portion of the body 160a, that is, the upper part of the pumping chamber PC. surface) is provided with a cover 162 , and the heater assembly 180 is detachably coupled to the lower open surface 163 (that is, the bottom surface of the heating chamber HC) provided under the body 160a.

The heater assembly 180 forms the bottom surface of the heating chamber HC at the lowermost portion of the driving unit 160 , so that the washing water heating function and the washing water circulation function can be simultaneously performed in the heating chamber HC. In addition, since the heater assembly 180 is detachable from the body 160a from the outside of the driving unit 160 , assembly or disassembly of the heater assembly 180 may be easy.

The impeller 168 is a means for moving the washing water flowing into the pumping chamber PC from the heating chamber HC through the communication hole 164 to the discharge unit 169, and a motor provided on the outside of the body 160a ( 170) can be rotated. Here, the motor 170 may be provided as a motor 170 fixed to the cover 162 , and the rotating shaft 171 of the motor may be directly connected to the impeller 168 through the cover 162 .

As shown in FIG. 3 , the heater assembly 180 includes a housing 181 forming a bottom surface of the heating chamber HC, and a heater 182 positioned outside the heating chamber HC to heat the housing 181 . can be provided with Accordingly, the heater 182 , the housing 181 , the pumping chamber PC and the heating chamber HC are sequentially stacked along the height direction of the body 160a to form a mutually vertical arrangement relationship.

On the other hand, the housing 181 is preferably provided with a conductor such as metal so that the heat energy supplied by the heater 182 can be effectively supplied to the washing water inside the heating chamber HC.

The housing 181 may include a receiving groove 183 for locating the heater 182 to the outside of the heating chamber HC, and a fastening part 184 for fixing the housing 181 to the body 160a. It is preferable that the receiving groove 183 is provided in a shape that maximizes the surface area of the housing 181 that exchanges heat with the washing water. it will be shown

In order to prevent the heater 182 inserted into the receiving groove 183 from being exposed to the outside of the receiving groove 183 , it may further include a heater cover 185 fixed to the housing 181 . The heater cover 185 not only blocks the supply of washing water or foreign substances to the heater 182 , but also prevents parts of the dishwasher near the driving unit 160 from coming into direct contact with the heater 182 .

The heater 182 may be provided with a heater body 160a that generates thermal energy when current is supplied, and a first terminal and a second terminal that supplies current to the heater body. The first terminal and the second terminal are preferably exposed to the outside of the receiving groove 183 , but the heater body 160a is preferably provided so as not to be exposed to the outside of the receiving groove 183 by the heater cover 185 .

The heater assembly 180 having the above-described structure has an impeller (while current is supplied to the heater 182) while the heater 182 is operating because the housing 181 forms the bottom surface of the heating chamber HC. When 168 is rotated, hot water (heated washing water) can be supplied to each of the injection units 124 , 125 , and 126 .

In addition, the heating chamber (HC) is located at the bottom of the flow path through which the washing water is circulated and moved, and the housing 181 heated by the heater 182 forms the bottom surface of the heating chamber (HC). Washing water can always stay inside. Therefore, it is possible to prevent the heater 182 from being overheated even without separately adjusting the water level, and it is possible to minimize the amount of washing water to be supplied for steam or hot water production.

Since the above-described driving unit 160 is provided with a heater assembly 180 on the bottom surface of the heating chamber HC, if only the heater 182 is operated after supplying a certain amount of washing water to the heating chamber HC, the driving unit 160 is It may also perform the function of a steam generator. However, in order for the driving unit 160 to also perform a function of generating steam, a steam outlet 166 for discharging the steam generated inside the pump heating chamber HC to the outside of the heating chamber HC must be further provided in the driving unit 160 . do.

As shown in FIG. 1 , the steam outlet 166 may communicate with the washing tub 120 through the steam supply unit 140 , and the steam supply unit 140 includes a steam nozzle 141 fixed to the washing tub 120 , steam It may be provided as a steam supply pipe 142 connecting the nozzle 141 and the steam outlet 166 . The steam outlet 166 may be provided at a position lower than the partition wall 160b and higher than the inlet part 165 .

On the other hand, when the steam outlet 166 is provided in the heating chamber HC, at least one of the steam outlet 166 and the steam supply pipe 142 has a steam valve ( 143) should be further provided.

However, in the driving unit 160 having the above-described structure, the steam inside the heating chamber HC may be supplied to the washing tank 120 through the steam supply pipe 142, but the injection unit 124 communicating with the heating chamber HC, 125 and 126 and the recovery hole 136 may also be supplied to the washing tank 120 .

Hereinafter, the operation of the dishwasher according to the embodiment of the present invention will be described with reference to the accompanying drawings. Each element mentioned below should be understood with reference to the above description and drawings.

5 is a flowchart illustrating an operation mode setting of the dishwasher according to the present invention.

As shown, in the case of the dish washing machine 100 of the present invention, according to the dish loading amount of the upper storage unit 121 or the lower storage unit 122 provided in the dish washing machine 100, the dish loading is concentrated in a specific storage unit. You can proceed with washing.

On the other hand, the user selects the upper receiving unit 121 or the lower receiving unit 122 by using the upper/lower selection button 114a of the operation unit 114 prior to the dish washing operation of the dishwasher 100, and the control unit ( 190) determines the accommodating unit selected by the user, and intensively washes dishes loaded in the determined accommodating unit.

Here, the control unit 190 must determine the storage unit selected by the user. First, the control unit 190 determines whether the receiving unit selected by the user's manipulation of the upper/lower selection button 114a is the upper receiving unit 121 (S110), and the upper receiving unit 121 is selected by the user selecting the receiving unit (S110). If it is, the operation mode of the dishwasher is set to the upper operation mode (S120).

On the other hand, when the receiving unit selected by the user is not the upper receiving unit, it is determined whether the single receiving unit is selected (S130), and when the lower receiving unit 122 is selected as the receiving unit selected by the user, the operation mode of the dishwasher is changed to the lower operating mode set (S140).

Here, the display unit 115 may display the receiving unit selected by the user through the upper/lower display lamps 115a provided in the display unit 115 according to the receiving unit selected by the user.

On the other hand, when the storage unit is not selected by the user in the above-described storage unit selection process, the controller 190 sets the normal operation mode and washes the dishes ( S150 ).

Here, the general operation mode is for uniformly washing dishes loaded in the upper accommodating part 121 and the lower accommodating part 122 , and includes , the operation of the upper injection unit 124 located between the upper receiving unit 121 and the lower receiving unit 122 and the lower injection unit 125 located below the lower receiving unit 122 is alternately operated for a predetermined time This is to uniformly wash dishes loaded in the upper accommodating part 121 and the lower accommodating part 122 as much as possible.

Here, the top injection part 126 , the upper injection part 124 , and the lower injection part 125 are the top supply passage 153 , the upper supply passage 151 , and the lower supply oil 152 by the switching valve 154 , respectively. ), a certain amount of washing water is supplied for a certain period of time. For example, in the case of a normal operation mode, the operating time of the top spray unit 126, the upper spray unit 124, and the lower spray unit 125 for washing dishes may be sequentially progressed at intervals of about 2 minutes, and at a set time It may be repeated several times to several tens of times. Here, the operating time of the top injection unit 126 , the upper injection unit 124 , and the lower injection unit 125 is not limited, and the operating time and the washing water supply flow rate of each injection unit 124 , 125 , 126 are relatively equal. can keep it

On the other hand, the upper operation mode is for intensively washing dishes loaded in the upper storage unit 121 , and includes the top spray unit 126 positioned above the upper storage unit 121 and the upper storage unit 121 . The upper accommodating part 124 and the lower accommodating part 122 positioned between the lower accommodating part 122 and the lower injecting part 125 positioned under the lower accommodating part 122 are operated alternately by varying the operating times, respectively. It is to wash the dishes by focusing on washing the dishes loaded in (121).

Here, when the upper operation mode is set, the operating time and the washing water supply flow rate of the top injection unit 126 and the upper injection unit 124 are maintained the same as the operating time and the washing water supply flow rate in the general operation mode, and the lower injection unit The operating time and the washing water supply flow rate of 125 are smaller than the operating time and the washing water supply flow rate of the top injection unit 126 or the upper injection unit 124 .

In addition, the control unit 190 controls the current applied to the motor 170 provided in the driving unit 160 when washing the dishes loaded in the upper storage unit 121 in the upper operation mode to control the top spray unit 126 . ) and the upper injection unit 124 and the lower injection unit 125 may have different rotational speeds and different injection pressures of the washing water.

And, the lower operation mode is for intensively washing dishes loaded in the lower accommodating part 122 , and the top spraying part 126 positioned above the lower accommodating part 122 and the upper accommodating part 121 . The upper injection unit 124 positioned between and the lower receiving unit 122 and the lower injection unit 125 located below the lower receiving unit 122 are operated alternately by varying the operating times, respectively, so that the lower receiving unit It is to wash the dishes by focusing on washing the dishes loaded in (122).

Here, when the lower operating mode is set, the operating time and the washing water supply flow rate of the upper injection unit 124 and the lower injection unit 125 are maintained the same as the operating time and the washing water supply flow rate in the general operating mode, and the top injection unit The operating time and the washing water supply flow rate of 126 are smaller than the operating time and the washing water supply flow rate of the upper injection unit 124 or the lower injection unit 125 .

In addition, the control unit 190 controls the current applied to the motor 170 provided in the driving unit 160 when washing the dishes loaded in the upper storage unit 121 in the lower operation mode to control the upper injection unit 124 . ) and the lower injection unit 125 and the rotation speed of the top injection unit 126 and the injection pressure of the washing water may be formed differently.

Hereinafter, the operation of the dishwasher according to the above-described operation mode selection will be described in detail with reference to the accompanying drawings.

6 is a flowchart illustrating the operation of the dishwasher according to the present invention.

As illustrated, the user can start washing the dishes by accommodating the dishes in the accommodating units 121 , 122 , and 123 of the dishwasher and then selecting a dish washing operation button (not shown). In addition, when the user operates the upper/lower selection button 114a provided on the operation unit 114 , when dishes are intensively loaded in a specific receiving unit among the receiving units 121 , 122 , and 123 of the dishwasher 100 , a specific It is possible to intensively wash dishes loaded in the storage unit.

For example, when dishes are concentrated and loaded in the upper storage unit 121 (or the lower storage unit 122), the upper storage unit 121 (or the lower storage unit) is opened by operating the upper/lower selection button 114a. It can be controlled to be washed intensively.

Meanwhile, when the operation of the dishwasher 100 starts, a water supply step S210 of supplying water to the driving unit 160 of the washing tub 120 is performed. And, when the water supply step (S210) is completed, a preliminary washing step (S220) of removing the dirt on the dishes is performed.

Then, when the preliminary washing step (S220) is finished, the main washing step (S230) in which the washing water mixed with the detergent is sprayed to remove the dirt on the dishes is performed. Then, when the main washing step (S230) is finished, the rinsing step (S240) is performed, and when the rinsing step (S240) is finished, the drying step (S250) of drying the dishes is performed to end the dish washing process.

In addition, before the preliminary washing step ( S220 ) is finished and the main washing step ( S230 ) is started, a draining process in which the washing water sprayed in the preliminary washing process is collected and drained is performed. Then, the washing water is pumped by the driving unit 160 and sprayed into the washing tank 120 through the top spray unit 126 , the upper spray unit 124 , and the lower spray unit 125 . And, the washing water spraying process is repeatedly performed for a set time.

Alternatively, this washing step ( S230 ) is performed by setting the number of washing water injections until the set number of injections is reached. And, when the main washing step (S230) is finished, the rinsing step (S240) proceeds, and before the start of the rinsing step (S240), the washing water supplied in the main washing step (S230) may be drained.

On the other hand, when the rinsing step (S240) is finished, a drying step (S250) for removing moisture attached to the dishes is performed. In the drying step (S250), hot air is introduced into the washing tub 120 so that moisture attached to the dishes is evaporated. Here, the air changed to a high temperature and high humidity state is discharged to the outside of the dishwasher 100 by the drying module 116 .

On the other hand, in the above-described preliminary washing step (S220), main washing step (S230), and rinsing step (S240), according to the operation of the selector valve 154, the top injection unit 126, the upper injection unit 124, and the top injection unit 126 rotates while the washing water is supplied at regular intervals to wash the dishes.

On the other hand, when the upper/lower selection button 114a is selected by the user's manipulation of the manipulation unit 114, the upper receiving unit 121 selected in the preliminary washing step (S220), the main washing step (S230), the rinsing step (S240), etc. ) or in the preliminary washing step (S220), the main washing step (S230), and the rinsing step (S240) of the lower receiving part 122, the top spraying part 126, the upper spraying part 124, and the lower spraying part 125. The operating time can be configured differently.

For example, in order to intensively wash dishes loaded in the upper storage unit 121, when the upper operation mode is selected, the top injection unit 126 and the upper injection unit 124 are operated at intervals of about 2 minutes. , the operating time of the lower injection unit 125 will be able to be operated at intervals of about 1 minute.

In addition, in order to intensively wash the dishes loaded in the lower storage unit 122, when the lower operation mode is selected, the operation time of the upper injection unit 124 and the lower injection unit 125 is operated at about 2 minute intervals, The operating time of the tower spraying unit 126 may be made to operate at intervals of about 1 minute. As such, in the case of the lower operation mode, the overall cleaning time can be shortened by reducing the operation time of the lower injection unit 125 .

Here, in the upper operating mode and the lower operating mode, the operating times of the top injection unit 126 , the upper injection unit 124 , and the lower injection unit 125 may be varied as exemplified for the description of the present invention.

As described above, according to the embodiment of the present invention, when dishes are concentrated and loaded in any one of the upper and lower accommodating parts of the dishwasher, it is possible to intensively wash the concentrated and loaded accommodating parts, and the top spraying part 126 ), the upper injection unit 124, and the lower injection unit 125 by reducing the operation time, the overall dish washing time can be shortened.

Although the preferred embodiment of the present invention has been described in detail as described above, those of ordinary skill in the art to which the present invention pertains, without departing from the spirit and scope of the present invention as defined in the appended claims The present invention may be practiced with various modifications. Accordingly, modifications of future embodiments of the present invention will not depart from the technology of the present invention.

100: washing machine 110: cabinet
120: washing tank 130: sump
140: steam supply unit 150: supply flow path
160: driving unit 170: motor
180: heater assembly

Claims (16)

A washing tank having an upper storage unit and a lower storage unit in which dishes are loaded, a top spraying unit located above the upper receiving unit, an upper jetting unit located between the upper receiving unit and the lower receiving unit, and a lower portion of the lower receiving unit A lower injection unit located in the , a driving unit for selectively supplying wash water to each of the injection units, and an operation unit provided with an upper selection button and a lower selection button for selecting the loading state of the upper storage unit or the lower storage unit In the control method of a dishwasher comprising:
a setting step of setting the upper operation mode for washing dishes stored in the upper storage unit and the lower operation mode for washing dishes stored in the lower storage unit according to a user's selection of an upper selection button or a lower selection button;
Comprising a spraying step of spraying the washing water by varying the operation time of each of the top spraying part, the upper spraying part, and the lower spraying part according to the setting of the setting step,
The spraying step
When the upper operation mode is selected, the operation time of the lower injection unit is shorter than the operation times of the top injection unit and the upper injection unit, so that the dishes stored in the upper storage unit are washed;
When the lower operation mode is selected, the operation time of the top injection unit is shorter than the operation times of the upper injection unit and the lower injection unit, so that the dishes stored in the lower storage unit are washed. Way. The method according to claim 1, wherein in the upper operation mode, the washing water supply flow rate supplied to the lower spray unit is smaller than the wash water supply flow rate supplied to the top spray unit and the upper spray unit. According to claim 1, wherein in the upper operation mode, the operation time of the top injection unit and the upper injection unit is maintained equal to the operation time of the normal operation mode, and the operation time of the lower injection unit is shorter than the operation time of the normal operation mode. A method of controlling a dishwasher, characterized in that it is formed. According to claim 1, wherein in the upper operation mode, the washing water supply flow rate supplied to the top injection unit and the upper injection unit is the same as the washing water supply flow rate in the normal operation mode, and the washing water flow rate supplied to the lower injection unit is the normal operation mode. A control method of a dishwasher, characterized in that less than the washing water supply flow rate is supplied. The method according to claim 1, wherein in the lower operation mode, the washing water supply flow rate supplied to the top injection unit is smaller than the washing water supply flow rate supplied to the upper injection unit and the lower injection unit. According to claim 1, wherein in the lower operation mode, the operation time of the upper injection unit and the lower injection unit is maintained equal to the operation time of the normal operation mode, and the operation time of the top injection unit is shorter than the operation time of the normal operation mode. A method of controlling a dishwasher, characterized in that it is formed. According to claim 1, wherein in the lower operation mode, the washing water supply flow rate supplied to the upper injection unit and the lower injection unit is the same as the washing water supply flow rate in the normal operation mode, and the washing water flow rate supplied to the top injection unit is the normal operation mode. A control method of a dishwasher, characterized in that less than the washing water supply flow rate is supplied. The control method according to claim 1, wherein the operating time and the washing water supply flow rate of the top sprayer, the upper sprayer, or the lower sprayer are varied by a supply pressure of the wash water supplied from the driving part. . According to claim 1, wherein in the setting step, when the upper operation mode or the lower operation mode is not set, the operation of each of the top injection unit, the upper injection unit, and the lower injection unit is set at a constant time to generate the washing water. The control method of the dishwasher, characterized in that it further comprises a spraying step. According to claim 1, wherein the driving unit is provided with a switching valve for changing the flow path of the washing water to the top injection part, the upper injection part, and the lower injection part, wherein the switching valve comprises the top injection part, The control method of a dish washing machine, characterized in that the opening and closing times of the flow passages supplied to the upper injection part and the lower injection part are formed differently. The method according to claim 1, further comprising a notification step of displaying the contents set according to the setting in the setting step to the user. a washing tank having an upper accommodating part and a lower accommodating part on which dishes are loaded;
a sump provided under the washing tank and collecting washing water;
a top spraying unit positioned above the upper accommodating unit;
an upper injection part positioned between the upper accommodating part and the lower accommodating part;
a lower injection unit located under the lower receiving unit;
a driving unit for supplying washing water to the top spray unit, the upper spray unit, and the lower spray unit;
a control panel for selecting and displaying a loading state of dishes in the upper and lower storage units; and
and a control unit configured to change the operating times of the top spray unit, the upper spray unit, and the lower spray unit to wash the dishes loaded in the upper storage unit or the lower storage unit,
The control panel includes an operation unit having an upper selection button and a lower selection button for selecting the loading state of the upper storage unit or the lower storage unit,
the control unit
According to the selection of the upper selection button or the lower selection button, the washing water is sprayed by varying the operation time of each of the top injection unit, the upper injection unit, and the lower injection unit,
When the upper selection button is selected, the operation time of the lower injection unit is shorter than the operation times of the top injection unit and the upper injection unit to wash the dishes stored in the upper storage unit,
When the lower selection button is selected, an operation time of the top spray unit is shorter than an operation time of the upper spray unit and the lower spray unit, and the dishes stored in the lower storage unit are washed. 13. The method of claim 12, wherein the control panel comprises:
and a display unit having an upper/lower selection lamp for displaying an item selected according to the upper/lower selection button. delete 13. The method of claim 12, wherein the control unit
and controlling a supply flow rate of the washing water supplied from the driving unit to control rotational speeds of the top sprayer, the upper sprayer, and the lower sprayer. 13. The method of claim 12, wherein the driving unit
a heating chamber receiving the washing water from the sump and forming a space for heating the incoming washing water;
a pumping chamber located above the heating chamber and forming a space in which the washing water flowing into the heating chamber is moved to the injection unit;
and a heater assembly provided with a heater coupled to a lower portion of the heating chamber to form the heating chamber and at the same time form a lowermost portion of the driving unit to heat the washing water stored in the heating chamber.

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