WO2020032709A1 - Dishwasher and control method therefor - Google Patents
Dishwasher and control method therefor Download PDFInfo
- Publication number
- WO2020032709A1 WO2020032709A1 PCT/KR2019/010107 KR2019010107W WO2020032709A1 WO 2020032709 A1 WO2020032709 A1 WO 2020032709A1 KR 2019010107 W KR2019010107 W KR 2019010107W WO 2020032709 A1 WO2020032709 A1 WO 2020032709A1
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- WO
- WIPO (PCT)
- Prior art keywords
- circulation
- duct
- heat exchange
- air
- tub
- Prior art date
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- 238000000034 method Methods 0.000 title claims description 25
- 238000005406 washing Methods 0.000 claims abstract description 118
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 72
- 238000005192 partition Methods 0.000 claims description 10
- 238000005507 spraying Methods 0.000 claims description 10
- 238000007599 discharging Methods 0.000 claims description 7
- 238000004140 cleaning Methods 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 3
- 238000001035 drying Methods 0.000 description 22
- 238000002347 injection Methods 0.000 description 13
- 239000007924 injection Substances 0.000 description 13
- 238000009833 condensation Methods 0.000 description 8
- 230000005494 condensation Effects 0.000 description 8
- 239000003599 detergent Substances 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 7
- 239000007921 spray Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 238000004851 dishwashing Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000001954 sterilising effect Effects 0.000 description 2
- 238000004659 sterilization and disinfection Methods 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000008236 heating water Substances 0.000 description 1
- 230000001151 other effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L15/00—Washing or rinsing machines for crockery or tableware
- A47L15/42—Details
- A47L15/48—Drying arrangements
- A47L15/488—Connections of the tub with the ambient air, e.g. air intake or venting arrangements
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L15/00—Washing or rinsing machines for crockery or tableware
- A47L15/42—Details
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L15/00—Washing or rinsing machines for crockery or tableware
- A47L15/42—Details
- A47L15/4246—Details of the tub
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L15/00—Washing or rinsing machines for crockery or tableware
- A47L15/42—Details
- A47L15/48—Drying arrangements
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L15/00—Washing or rinsing machines for crockery or tableware
- A47L15/42—Details
- A47L15/48—Drying arrangements
- A47L15/486—Blower arrangements
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L2501/00—Output in controlling method of washing or rinsing machines for crockery or tableware, i.e. quantities or components controlled, or actions performed by the controlling device executing the controlling method
- A47L2501/10—Air circulation, e.g. air intake or venting arrangements
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L2501/00—Output in controlling method of washing or rinsing machines for crockery or tableware, i.e. quantities or components controlled, or actions performed by the controlling device executing the controlling method
- A47L2501/11—Air heaters
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L2501/00—Output in controlling method of washing or rinsing machines for crockery or tableware, i.e. quantities or components controlled, or actions performed by the controlling device executing the controlling method
- A47L2501/12—Air blowers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
Definitions
- the present invention relates to a dishwasher, and more particularly, to a dishwasher capable of circulating or discharging air in a tub.
- the dishwasher is a device that can wash dishes using water and detergent in a space where the dishes can be stored, and wash the dishes through a rinsing and drying process. Cleaning and rinsing with water and detergent can remove foreign substances from the dishes. In addition, it is possible to finish the washing of the dish through a drying process to remove the water remaining in the dish.
- the drying process of the dishwasher increases the temperature of the water sprayed on the tableware, increases the temperature of the tableware, promotes the evaporation of the water on the tableware, and condenses the evaporated water vapor in a cooling duct located inside or outside the washing tank, Absorption can be done.
- the problem to be solved by the present invention is to provide a dishwasher capable of efficiently drying the inside of the tub by treating the humid air inside the tub.
- Still another object of the present invention is to provide a control method of a dishwasher that does not damage the surrounding configuration of the dishwasher by circulating or exhausting the air inside the tub according to the degree of humidity of the air inside the tub.
- the dishwasher forming the outer shape; A tub disposed inside the cabinet and forming a washing chamber in which a washing object is disposed; A heat exchange duct disposed between the tub and the cabinet and forming a heat exchange passage through which air introduced from the cabinet flows; A first circulation duct disposed between the heat exchange duct and the cabinet and forming a circulation passage through which air discharged from the tub flows; A second circulation duct for supplying air flowing through the first circulation duct to the tub; A fan assembly which sends air flowing through the first circulation duct to the second circulation duct and sends outside air introduced from the outside of the cabinet to the heat exchange path; And a guide valve for opening and closing a guide hole formed between the heat exchange duct and the first circulation duct so that the heat exchange passage and the circulation passage communicate with each other.
- the guide valve has a lower end rotatably fixed between the circulation passage and the heat exchange passage, so that air in the circulation passage flowing from the upper side to the lower side may flow into the heat exchange passage.
- a partition wall partitioning the circulation flow path and the heat exchange flow path is formed, and the guide valve has an upper end contacting the partition wall or rotating in the circulation flow path and spaced apart from the partition wall so as to flow from the upper side to the lower side. Air can flow into the heat exchange path.
- the guide valve When the guide valve rotates toward the circulation passage, the guide valve may be inclined upwardly of the circulation passage so that air in the circulation passage flowing from the upper side to the lower side may flow into the heat exchange passage.
- It may be disposed on the second circulation duct, including a circulation heater for heating the air flowing through the second circulation duct, it is possible to heat the circulating air to supply the inside of the tub.
- the controller further includes a control unit configured to control the opening and closing of the guide valve, wherein the control unit opens the guide valve when the fan assembly is operated and the first predetermined time elapses, thereby removing some of the moisture in the tub in a circulation process. Can be discharged by mixing with the outside air.
- an exhaust duct for discharging air exchanged with the first circulation duct in the heat exchange duct to the outside of the cabinet, wherein the exhaust duct is disposed above the tub, and discharges air in front of the cabinet, and exhausts the exhaust duct.
- the duct forms a plurality of exhaust ports opened in front of the cabinet, and the plurality of exhaust ports are spaced at a predetermined interval so that air can be smoothly discharged through the exhaust port even when the door is locked.
- the control method of the dishwasher according to the present invention spraying the washing water to the washing chamber formed in the tub to wash the washing target mounted on the washing chamber;
- the outside air flows to the heat exchange passage formed in the heat exchange duct disposed on one side of the tub and is exhausted to the outside of the cabinet, and the air flows in the cleaning chamber to the circulation passage formed inside the first circulation duct disposed on the side of the heat exchange duct.
- the hot air exhaust step may be performed to discharge air from which a predetermined level of humidity has been removed.
- the dishwasher of the present invention has the advantage of improving the drying performance by circulating or exhausting the air in the tub according to the humidity of the air in the tub.
- the humidity of the air inside the tub is discharged to the outside at a certain level or less, without damaging the configuration around the dishwasher, there is an advantage that can perform the drying step.
- FIG. 1 is a schematic front cross-sectional view of a dishwasher according to one embodiment of the present invention.
- Figure 2 is a block diagram illustrating the flow of air in the dish washer in the drying process according to an embodiment of the present invention.
- FIG 3 is a view for explaining the flow of air in the drying process according to an embodiment of the present invention.
- FIG. 4 is a view for explaining the heat exchange generated in the air flowing through the tub, the circulation duct and the heat exchange duct according to an embodiment of the present invention.
- FIG 5 is a view for explaining the internal configuration of the first circulation duct according to an embodiment of the present invention.
- FIG. 6 is a cross-sectional view taken along the line VI-VI ′ of FIG. 5.
- FIG. 7 is a view for explaining the flow of condensate in the drawing of FIG. 5.
- FIG 8A is a view for explaining the arrangement of the guide valve and the flow of air in the circulation mode according to an embodiment of the present invention.
- 8B is a view for explaining the arrangement of the guide valve and the flow of air in the discharge mode according to an embodiment of the present invention.
- FIG. 9 is a block diagram illustrating a relationship between a control unit and a configuration operated by the control unit according to an embodiment of the present invention.
- FIG. 10 is a flowchart illustrating a control method of the dish washer according to an embodiment of the present invention.
- FIG. 11 is a flowchart illustrating a drying step in the control method of the dish washer according to an embodiment of the present invention.
- FIG. 1 is a schematic front cross-sectional view of a dishwasher according to one embodiment of the present invention.
- the dishwasher 10 is coupled to a cabinet 12 and a cabinet 12 forming an outer shape, and a door 16 and a cabinet 12 that open and close the inside of the cabinet 12. It includes a tub 14 installed therein and formed with a washing chamber 14a for processing the dishes placed therein.
- the cabinet 12 and the tub 14 have a form in which the front surface on which the door 16 is disposed is opened.
- the dishwasher 10 may include a dispenser (not shown) for storing the detergent introduced by the user and injecting the detergent into the tub 14 in the washing step.
- the dispenser may be disposed in the door 16.
- Cabinet 12 forms an outer shape, one side may be open.
- the tub 14 according to the present embodiment is disposed inside the cabinet 12.
- the tub 14 according to the present exemplary embodiment may form a space between the cabinet 12 and the heat exchange duct 80 and the circulation ducts 60 and 70 to be described below.
- a circulation duct inlet hole 62a through which air flowing through the washing chamber 14a inside the tub 14 is discharged to the circulation ducts 60 and 70 is formed.
- the circulation duct exhaust hole 76 through which air flowing in the circulation ducts 60 and 70 is discharged to the washing chamber 14a inside the tub 14 is formed.
- Dishwasher 10 is a rack (36, 38) for receiving the dishes in the tub 14, the spray nozzle 30 for spraying the washing water toward the dishes accommodated in the rack (36, 38) 32, 34, a sump 18 for supplying washing water to the injection nozzles 30, 32, and 34, and a washing pump 20 for pumping the washing water stored in the sump 18 into the injection module.
- the racks 36 and 38 include an upper rack 36 disposed above the washing chamber 14a and a lower rack 38 disposed below the upper rack 36.
- the spray nozzles 30, 32, and 34 are disposed on the upper side of the washing chamber 14a and disposed between the top spray nozzle 30, the upper rack 36, and the lower rack 38 for spraying the washing water into the washing chamber 14a. It is disposed below the upper injection nozzle 32 and the lower rack 38 for spraying the washing water to the upper rack 36 or the upper rack 36 and the lower rack 38, spraying the washing water to the lower rack (38) It may further include a lower portion four nozzles (34).
- Each of the plurality of injection nozzles 30, 32, and 34 may be connected to a plurality of injection nozzle connecting pipes 40, 42, and 44.
- the impeller 22 rotating to supply the washing water in the washing pump 20 to the plurality of injection nozzles, the washing motor 24 rotating the impeller 22, and the washing pump 20 inside the washing pump 20. It may include a heater 26 for heating the wash water.
- the washing water pumped from the washing pump 20 flows through the washing water supply pipe 46, and the switching valve 28 connects at least one of the plurality of injection nozzles 30, 32, and 34 to the washing water supply pipe 46.
- the dishwasher 10 is connected to a water supply assembly for supplying water to the sump 18 or the injection module, a drainage assembly for discharging the washing water to the outside by being connected to the sump 18, and the wash water is installed. It may further include a washing water heating module 56 installed in the filter 19 and the sump 18 to filter the heating water.
- the dishwasher according to the present embodiment may further include an input unit (not shown) for receiving a command from a user and a display unit (not shown) for displaying a progress state or displaying a notification to the user.
- the input unit may use a touch input method or a button input method
- the display unit may use a display or a warning lamp.
- Figure 2 is a block diagram illustrating the flow of air in the dish washer in the drying process according to an embodiment of the present invention.
- 3 is a view for explaining the flow of air in the drying process according to an embodiment of the present invention.
- 4 is a view for explaining the heat exchange generated in the air flowing through the tub, the circulation duct and the heat exchange duct according to an embodiment of the present invention.
- 5 is a view for explaining the internal configuration of the first circulation duct according to an embodiment of the present invention.
- 6 is a cross-sectional view taken along the line VI-VI ′ of FIG. 5.
- FIG. 7 is a view for explaining the flow of condensate in the drawing of FIG. 5.
- 8A is a view for explaining the arrangement of the guide valve and the flow of air in the circulation mode according to an embodiment of the present invention.
- 8B is a view for explaining the arrangement of the guide valve and the flow of air in the discharge mode according to an embodiment of the present invention.
- FIGS. 2 to 8B a structure of a dish washing machine including a circulation duct and a heat exchange duct according to the present embodiment will be described with reference to FIGS. 2 to 8B.
- the dishwasher 10 includes air circulating ducts 60 and 70 that form a space in which the air inside the washing chamber 14a flows out of the tub 14 and circulates outside the cabinet 12.
- a heat exchange duct 80 forming a heat exchange passage 80a to flow in and exchange heat with the circulation ducts 60 and 70 and a fan assembly 100 forming a flow of air between the circulation ducts 60 and 70 and the heat exchange duct 80. ).
- the circulation ducts 60 and 70 are configured to heat the air exchanged with the first circulation duct 60 forming the circulation passage 60a so as to heat exchange the air discharged from the tub 14 with the heat exchange duct 80. 14)
- the second circulation duct 70 is supplied to the interior of the washing chamber (14a).
- the first circulation duct 60 is disposed between the heat exchange duct 80 and the cabinet 12.
- the first circulation duct 60 may be disposed to be in interview with the heat exchange duct 80 to exchange heat with air introduced from the outside flowing the heat exchange duct 80.
- the first circulation duct 60 may be disposed in interview with the cabinet 12 to exchange heat with air flowing outside the cabinet 12.
- the air flowing through the circulation passage 60a formed inside the first circulation duct 60 exchanges heat with the air flowing through the heat exchange passage 70a to generate condensed water and the outside of the cabinet 12.
- Condensate can be planetary by heat exchange with flowing external air.
- the first circulation duct 60 may have a plate shape having a hollow inside so as to be disposed between the side of the cabinet 12 and the tub 14.
- the first circulation duct 60 is disposed between the side surface of the tub 14 and the cabinet 12 to exchange heat between the heat exchange-circulation duct 64 and the air discharged from the tub 14 to exchange heat with the heat exchange duct 80. It may comprise a connecting duct 62 to the circulation duct (64).
- connection duct 62 connects the circulation duct inlet hole 62a formed on the tub 14 and the heat exchange-circulation duct 64.
- the connection duct 62 is disposed above the tub 14 to send air from the washing chamber 14a discharged to the circulation duct inlet hole 62a to the heat exchange-circulation duct 64.
- a plurality of flow path guides 66 may be formed inside the heat exchange-circulation duct 64 to guide the flow of air.
- the flow guide 66 adjusts the speed of the air flowing in the heat exchange-circulation duct 64 or allows the effective length of heat exchange to be made at a long distance.
- the flow guide 66 may be formed to change the direction of the air flowing through the connection duct 62 to extend the length of the circulation flow path 60a.
- a condensation water guide 68 is formed inside the heat exchange-circulation duct 64 to guide the movement of condensed water condensed in the air flowing through the heat exchange-circulation duct 64.
- the condensation water guide 68 according to the present embodiment is disposed below the flow path guide 66.
- the condensation water guide 68 guides the condensed water formed along the inner wall surface of the heat exchange-circulating duct 64 to the circulation duct exhaust hole 76 formed on the side surface of the tub 14.
- the condensation water guide 68 according to the present embodiment includes a first condensation water guide 68a formed on one inner wall of the heat exchange-circulation duct 64 and a second condensation water guide formed on the other inner wall of the heat exchange-circulation duct 64. 68b).
- the condensation water guide 68 according to the present embodiment is formed to be inclined downward forward.
- the heat exchange-circulation duct 64 has a condensate discharge hole 69a for discharging condensate at one side of the lower portion.
- the condensate discharge hole 69a according to the present embodiment communicates the heat exchange-circulation duct 64 and the second circulation duct 70.
- a condensate discharge guide 69 for guiding condensate flowing through the condensate guides 68a and 68b to the condensate discharge hole 69a is disposed.
- the condensate discharge guide 69 according to the present embodiment is disposed below the condensate discharge hole 69a and guides the condensate to the circulation duct exhaust hole 76 formed on the side surface of the tub 14.
- the heat exchange-circulation duct 64 may include a plurality of condensate guides 68 for guiding condensate generated by the heat exchange to the circulation duct exhaust hole 76.
- the plurality of condensation guides 68 may be disposed on one inner side and the other side of the heat exchange-circulation duct 64, respectively.
- the second circulation duct 70 flows the first circulation duct 60 to supply heat-exchanged air into the tub 14.
- the circulation unit heater 78 may be disposed in the second circulation duct 70. Therefore, the air flowing through the second circulation duct 70 may be heated by the circulation heater 78 and supplied into the tub 14.
- a circulation duct exhaust hole 76 communicating with the washing chamber 14a in the tub 14 is formed.
- An upper flow passage 72 is formed at an upstream side of the circulation ducts 60 and 70, and an air passage 72 is formed at the downstream thereof, and a lower flow passage 74 is formed to flow air flowed upwardly downward. Downstream of the circulation duct exhaust hole 76 is formed.
- the circulation heater 78 may be disposed upstream of the upper flow passage. That is, the circulation heater 78 is disposed below the upper flow passage 72.
- the washing water scattered from the washing chamber 14a in the tub 14 to the second circulation duct 70 may be prevented from flowing into the circulation heater 78.
- the heat exchange duct 80 may be disposed between the side surface of the tub 14 and the first circulation duct 60.
- the heat exchange duct 80 according to the present exemplary embodiment may have a plate shape having a hollow inside so as to be disposed in a space between the tub 14 and the cabinet 12.
- Air introduced from the outside flowing the heat exchange duct 80 may exchange heat with the first circulation duct 60.
- the air flowing through the heat exchange duct 80 may exchange heat with the air flowing through the washing chamber 14a in the tub 14. Therefore, the hot and humid air flowing through the washing chamber 14a of the tub 14 and the hot and humid air flowing through the first circulation duct 60 are used to exchange condensed water by heat exchange with external air flowing through the heat exchange duct 80. Can be generated.
- a separate flow guide (not shown) may also be formed inside the heat exchange duct 80.
- the dishwasher 10 may include an exhaust duct 86 for discharging air heat-exchanged with the first circulation duct 60 in the heat exchange duct 80 to the outside of the cabinet 12.
- the exhaust duct 86 is disposed above the tub 14, and can exhaust air to the front of the cabinet 12.
- the exhaust duct 86 may form the exhaust ports 86a and 86b in the upper front of the tub 14.
- the exhaust duct 86 according to the present exemplary embodiment may be disposed to be biased forward from the upper side of the tub 14 and may include a plurality of exhaust ports 86a and 86b opened forward.
- Exhaust ports 86a and 86b according to the present embodiment are arranged at regular intervals.
- Exhaust ports 86a and 86b according to the present exemplary embodiment may be formed at positions spaced apart from each other by left and right with respect to the upper center portion of the tub 14.
- the dishwasher 10 is disposed between the circulation passage 60a and the heat exchange passage 80a to guide the air flowing through the circulation passage 60a to the heat exchange passage 80a. It includes.
- the guide valve 90 is disposed in the guide hole 90a formed between the circulation passage 60a formed in the first circulation duct 60 and the heat exchange passage 80a formed in the heat exchange duct 80.
- the guide valve 90 may close the guide hole 90a to partition the circulation passage 60a and the heat exchange passage 80a.
- the guide valve 90 may open the guide hole 90a to guide the air flowing through the circulation passage 60a to the heat exchange passage 80a.
- the guide valve 90 is disposed above the heat exchange-circulation duct 64 and the heat exchange duct 80.
- the lower end of the guide valve 90 is rotatably fixed between the circulation passage 60a and the heat exchange passage 80a, and the upper end of the guide valve 90 abuts on the partition wall 92 that divides the circulation passage 60a and the heat exchange passage 80a. , Are spaced apart.
- the guide valve 90 according to the present embodiment is rotated in the circulation flow path 60a to be spaced apart from the partition wall 92.
- the guide valve 90 according to the present exemplary embodiment is disposed to be inclined upwardly of the circulation passage 60a when the guide valve 90 rotates toward the circulation passage 60a.
- Air introduced into the cabinet 12 from the outside may flow to the heat exchange duct 80 through an outside air inlet duct (not shown).
- the air inlet duct according to the exemplary embodiment of the present invention may be formed at one side of the circumferential surface on which the fan motor 134 of the fan assembly 100 is disposed. In this case, the outside air may flow into the rear of the cabinet 12.
- the air inlet duct according to another embodiment of the present invention may be disposed below the fan assembly 100. In this case, the outside air may be introduced into the cabinet 12 through the lower side of the cabinet 12. In addition, outside air may flow in through the front lower side of the cabinet 12, or outside air may flow in the other direction.
- the fan assembly 100 may send air flowing through the first circulation duct 60 to the second circulation duct 70, and send air introduced into the cabinet 12 from the outside to the heat exchange duct 80.
- the first chamber 112 which communicates the first circulation duct 60 and the second circulation duct 70, and the external air inlet duct and the heat exchange duct 80 communicate with each other.
- Two chambers 114 are formed.
- the first chamber 112 is provided with a first fan 118 for flowing the air of the first circulation duct 60 to the second circulation duct 70, the air of the outside air inlet duct is provided in the second chamber (114).
- the second fan 120 may be disposed to flow into the heat exchange duct 80.
- the fan assembly 100 may include a fan motor 134 for rotating the first fan 118 and the second fan 120 at the same time.
- the fan motor 134 is disposed on one side of the first fan 118 or the second fan 120 to simultaneously rotate the first fan 118 and the second fan 120.
- the fan assembly 100 according to the present embodiment is disposed below the tub 14.
- the fan assembly 100 according to the present exemplary embodiment has a structure in which two fans 118 and 120 are driven by one fan motor 134.
- FIG. 9 is a block diagram illustrating a relationship between a control unit and a configuration operated by the control unit according to an embodiment of the present invention.
- the dishwasher according to the present embodiment includes a controller 200 for changing the arrangement of the guide valve 90.
- the controller 200 according to the present exemplary embodiment may operate the fan motor 122 and the circulating heater 78 in a drying stroke for drying the washing object in the washing chamber 14a.
- the controller 200 according to the present exemplary embodiment may control the water supply valve and the drain pump to receive the washing water into the dishwasher 10 or discharge the washing water to the outside of the dishwasher 10.
- the controller 200 according to the present exemplary embodiment may control the operation of the washing motor 24 to supply the washing water to the plurality of injection nozzles 30, 32, and 34.
- the controller 200 according to the present exemplary embodiment may control the operation of the heater 26 to heat the washing water.
- the controller 200 according to the present exemplary embodiment may control the switching valve 28 to supply the washing water pumped from the washing pump 20 to at least one of the plurality of injection nozzles 30, 32, and 34.
- 10 is a flowchart illustrating a control method of the dish washer according to an embodiment of the present invention.
- 11 is a flowchart illustrating a drying step in the control method of the dish washer according to an embodiment of the present invention.
- the dish washing machine control method may sequentially perform a preliminary washing step (s100), steam washing step (s200), main washing step (s300), rinsing step (s400) and drying step (s500).
- Pre-cleaning step (s100) is a stroke for removing the dirt attached to the washing target by spraying the washing water to the washing target.
- the controller 110 controls the water supply valve 50 to supply the washing water from the external water source into the sump 18.
- the control unit 200 operates the washing pump 20 to pump the washing water in the sump 18 and controls the switching valve 28 to wash the washing water through at least one of the plurality of injection nozzles 30, 32, and 34. Spray it.
- the washing water sprayed through at least one of the plurality of spray nozzles 30, 32, and 34 drops the dirt attached to the washing object to the bottom of the tub 14 and collects the filter 19.
- the control unit 200 operates the drain pump 54 to drain the washing water in the sump 18 to the outside.
- the preliminary washing step s100 may be performed at various times at least once or more times according to the embodiment.
- Steam washing step (s200) is a stroke called the dirt attached to the washing target with sterilization by spraying the heated washing water to the washing target and steam to the washing target.
- steam and high temperature washing water may be sprayed at the same time.
- the steam injected through the steam nozzle may act on the cleaning object to call the dirt attached to the sterilization or cleaning object, and the hot washing water discharged through the steam nozzle flows to the bottom of the tub 14.
- the bottom of the tub 14 can be sterilized or dirt stuck to the bottom of the tub 14 can be removed.
- the main washing step (s300) is a stroke for spraying the heated washing water to the washing target to heat the washing target and to remove the dirt attached to the washing target.
- the control unit 200 controls the water supply valve 50 to supply the washing water from the external water source to the sump 18.
- the heater 26 is controlled to heat the washing water
- the washing pump 20 is operated to spray the heated washing water through at least one of the plurality of spray nozzles 30, 32, and 34.
- the dispenser (not shown) disposed in the door 16 is opened, the detergent is mixed with the washing water flowing in the tub 14, the washing object can be washed.
- the drain pump 54 is operated to drain the washing water in the sump 18 to the outside.
- the rinsing step (s400) is a stroke for removing residual dirt attached to the washing object or rinsing the washing object washed with washing water mixed with detergent.
- the controller 200 controls the water supply valve 50 to supply the washing water from the external water source to the sump 18, and then operates the washing pump 20 to operate the plurality of injection nozzles 30, 32, and the like. 34) The washing water is sprayed through at least one of them. Thereafter, the drain pump 54 is operated to drain the washing water in the sump 18 to the outside.
- the rinsing detergent may be mixed with the washing water.
- the drying step s500 is a stroke for drying the inside of the washing chamber 14a while circulating air in the tub 14 by heat-exchanging and heating the circulated air.
- the control unit 200 may operate the fan motor 122 to flow air into the circulation ducts 60 and 70 and the heat exchange duct 80.
- the controller 200 may operate the circulation heater 78 to heat the circulating air introduced into the tub 14.
- Drying step (s500) is a hot air circulation step (s510) is operated with the guide valve 90 closed the guide hole (90a), and hot air is operated with the guide valve 90 is open the guide hole (90a) It comprises a discharge step (s530).
- the fan motor 122 and the circulation unit heater 78 are operated with the guide valve 90 closing the guide hole 90a. Accordingly, the humid air discharged from the tub 14 flows through the first circulation duct 60 and heat exchanges with external air flowing through the heat exchange duct 80 to generate condensed water and be primarily dried.
- the air flowing through the first circulation duct 60 flows inside the second circulation duct 70 by the fan assembly 100, is heated by the circulation unit heater 78, and the circulation duct exhaust hole 76. It may be supplied into the tub 14 through).
- the humid air inside the tub 14 flows through the circulation ducts 60 and 70, and is dried and heated to be supplied back into the tub 14 to dry the tub 14.
- the air introduced from the outside by the fan motor 122 flows through the heat exchange duct 80, heat exchanges with the air flowing through the first circulation duct 60, and is discharged to the outside of the cabinet 12.
- the heat exchange duct 80 flows, and the air discharged to the outside does not discharge the humid air simply by heat exchange.
- Hot air discharge step (s530) operates the fan motor 122 and the circulation heater 78 with the guide valve 90 open the guide hole (90a).
- a part of the air discharged from the tub 14 to the first circulation duct 60 is introduced into the heat exchange duct 80, and mixed with air introduced from the outside flowing the heat exchange duct 80. Can be discharged to the outside.
- the hot air discharge step s530 may proceed after a predetermined time has elapsed after the hot air circulation step s510 is performed. That is, the hot air circulation step s510 may be performed, and the hot air discharge step s530 may be performed in a state in which the first set time is over, after step s520 of comparing whether the first set time has elapsed.
- the first set time may be set in consideration of the size of the washing chamber 14a formed in the tub 14, the rotation speed of the fan motor 122, and the like.
Landscapes
- Washing And Drying Of Tableware (AREA)
Abstract
The present invention relates to a dishwasher. The dishwasher according to the present invention comprises: a cabinet for forming an exterior; a tub arranged inside the cabinet and forming a washing chamber in which an object to be washed is arranged; a heat exchange duct arranged between the tub and the cabinet and forming a heat exchange flow path through which air introduced from outside the cabinet flows; a first circulation duct arranged between the heat exchange duct and the cabinet and forming a circulation flow path through which air discharged from the tub flows; a second circulation duct for supplying, to the tub, the air flowing in the first circulation duct; a fan assembly for sending, to the second circulation duct, the air flowing in the first circulation duct, and sending, to the heat exchange flow path, the external air introduced from outside the cabinet; and a guide valve for opening and closing a guide hole formed between the heat exchange duct and the first circulation duct so that the heat exchange flow path and the circulation flow path are in communication.
Description
본 발명은 식기세척기에 관한 것으로, 보다 상세하게는 터브 내부의 공기를 순환하거나 배출할 수 있는 식기세척기에 관한 것이다.The present invention relates to a dishwasher, and more particularly, to a dishwasher capable of circulating or discharging air in a tub.
식기세척기는, 식기가 저장될 수 있는 공간 내부에서 물과 세제를 이용하여, 식기를 세척하고, 헹굼 및 건조과정을 거쳐 식기를 세척할 수 있는 기구이다. 물과 세제를 이용한 세척과 헹굼과정으로 식기에 묻은 이물질 등이 제거될 수 있다. 또한, 식기에 잔존하는 물기를 제거하는 건조과정을 통해 식기의 세척을 마무리할 수 있다.The dishwasher is a device that can wash dishes using water and detergent in a space where the dishes can be stored, and wash the dishes through a rinsing and drying process. Cleaning and rinsing with water and detergent can remove foreign substances from the dishes. In addition, it is possible to finish the washing of the dish through a drying process to remove the water remaining in the dish.
식기세척기의 건조과정은 식기에 분사되는 물의 온도를 높여서 식기의 온도를 높이고, 식기에 묻은 물의 증발을 촉진시키는 과정과 증발된 수증기를 세척조의 내부 또는 외부에 위치되는 냉각덕트에서 응축시키거나 제습제에 흡수시켜서 제거하는 과정으로 이루어 질 수 있다. The drying process of the dishwasher increases the temperature of the water sprayed on the tableware, increases the temperature of the tableware, promotes the evaporation of the water on the tableware, and condenses the evaporated water vapor in a cooling duct located inside or outside the washing tank, Absorption can be done.
식기세척기 터브 내부의 습한 공기를 외부로 배출시키는 경우, 식기세척기 내부의 식기를 빠르게 건조할 수 있으나, 식기세척기 외부로 습한 공기가 배출되는 경우, 식기세척기가 배치된 외부 공간에 다량의 습기로 인한 곰팡이 등이 발생하거나, 외부의 구성을 손상할 수 있는 문제가 있다.When the humid air inside the dishwasher is discharged to the outside, the dishes inside the dishwasher can be dried quickly.However, when the humid air is discharged to the outside of the dishwasher, There is a problem that may occur, such as mold or damage the external configuration.
본 발명이 해결하고자 하는 과제는 터브 내부의 습한 공기를 처리하여 터브 내부를 효율적으로 건조할 수 있는 식기세척기를 제공하는 것이다.The problem to be solved by the present invention is to provide a dishwasher capable of efficiently drying the inside of the tub by treating the humid air inside the tub.
본 발명의 또 다른 과제는 터브 내부의 공기의 습한정도에 따라 터브 내부의 공기를 순환하거나 배출하여 식기세척기의 주변 구성을 손상하지 않는 식기세척기의 제어방법을 제공하는 것이다.Still another object of the present invention is to provide a control method of a dishwasher that does not damage the surrounding configuration of the dishwasher by circulating or exhausting the air inside the tub according to the degree of humidity of the air inside the tub.
본 발명의 과제들은 이상에서 언급한 과제들로 제한되지 않으며, 언급되지 않은 또 다른 과제들은 아래의 기재로부터 당업자에게 명확하게 이해될 수 있을 것이다.The objects of the present invention are not limited to the above-mentioned objects, and other objects that are not mentioned will be clearly understood by those skilled in the art from the following description.
상기 과제를 달성하기 위하여, 본 발명에 따른 식기세척기는, 외형을 형성하는 캐비닛; 상기 캐비닛 내부에 배치되고, 세척대상이 배치되는 세척실을 형성하는 터브; 상기 터브와 상기 캐비닛 사이에 배치되고, 상기 캐비닛 외부에서 유입된 공기가 유동하는 열교환유로를 형성하는 열교환덕트; 상기 열교환덕트와 상기 캐비닛 사이에 배치되고, 상기 터브에서 배출되는 공기가 유동하는 순환유로를 형성하는 제1순환덕트; 상기 제1순환덕트를 유동하는 공기를 상기 터브로 공급하는 제2순환덕트; 상기 제1순환덕트를 유동하는 공기를 상기 제2순환덕트로 보내고, 캐비닛 외부에서 유입된 외기를 상기 열교환유로로 보내는 팬어셈블리; 및 상기 열교환유로와 상기 순환유로가 연통되도록 상기 열교환덕트와 상기 제1순환덕트 사이에 형성된 가이드홀을 개폐하는 가이드밸브를 포함하여, 터브 내부의 공기를 순환하거나 배출할 수 있다. In order to achieve the above object, the dishwasher according to the present invention, the cabinet forming the outer shape; A tub disposed inside the cabinet and forming a washing chamber in which a washing object is disposed; A heat exchange duct disposed between the tub and the cabinet and forming a heat exchange passage through which air introduced from the cabinet flows; A first circulation duct disposed between the heat exchange duct and the cabinet and forming a circulation passage through which air discharged from the tub flows; A second circulation duct for supplying air flowing through the first circulation duct to the tub; A fan assembly which sends air flowing through the first circulation duct to the second circulation duct and sends outside air introduced from the outside of the cabinet to the heat exchange path; And a guide valve for opening and closing a guide hole formed between the heat exchange duct and the first circulation duct so that the heat exchange passage and the circulation passage communicate with each other.
상기 가이드밸브는 하단이 상기 순환유로와 상기 열교환유로 사이에서 회전가능하게 고정되어, 상측에서 하측으로 유동하는 순환유로의 공기가 열교환유로로 유동할 수 있다. The guide valve has a lower end rotatably fixed between the circulation passage and the heat exchange passage, so that air in the circulation passage flowing from the upper side to the lower side may flow into the heat exchange passage.
상기 순환유로와 상기 열교환유로를 구획하는 격벽이 형성되고, 상기 가이드밸브는 상단이 상기 격벽에 맞닿거나, 상기 순환유로 방향으로 회전하여, 상기 격벽에서 이격배치되어, 상측에서 하측으로 유동하는 순환유로의 공기가 열교환유로로 유동할 수 있다. A partition wall partitioning the circulation flow path and the heat exchange flow path is formed, and the guide valve has an upper end contacting the partition wall or rotating in the circulation flow path and spaced apart from the partition wall so as to flow from the upper side to the lower side. Air can flow into the heat exchange path.
상기 가이드밸브는 상기 순환유로 측으로 회전할 때, 상기 순환유로의 상측으로 경사지게 배치되어, 상측에서 하측으로 유동하는 순환유로의 공기가 열교환유로로 유동할 수 있다. When the guide valve rotates toward the circulation passage, the guide valve may be inclined upwardly of the circulation passage so that air in the circulation passage flowing from the upper side to the lower side may flow into the heat exchange passage.
상기 제2순환덕트 상에 배치되고, 상기 제2순환덕트를 유동하는 공기를 가열하는 순환부히터를 포함하여, 순환하는 공기를 가열하여 터브 내부로 공급할 수 있다. It may be disposed on the second circulation duct, including a circulation heater for heating the air flowing through the second circulation duct, it is possible to heat the circulating air to supply the inside of the tub.
상기 가이드밸브의 개폐를 조절하는 제어부를 더 포함하고, 상기 제어부는 상기 팬어셈블리가 작동되고, 제1설정시간이 경과될 때, 상기 가이드밸브를 개방하여, 터브 내부에서 순환과정으로 습기가 어느정도 제거된 공기를 외부공기와 혼합하여 배출할 수 있다. The controller further includes a control unit configured to control the opening and closing of the guide valve, wherein the control unit opens the guide valve when the fan assembly is operated and the first predetermined time elapses, thereby removing some of the moisture in the tub in a circulation process. Can be discharged by mixing with the outside air.
상기 열교환덕트에서 상기 제1순환덕트와 열교환된 공기를 상기 캐비닛 외부로 배출하는 배기덕트를 더 포함하고, 상기 배기덕트는 터브의 상측에 배치되고, 상기 캐비닛의 전방으로 공기를 배출시키고, 상기 배기덕트는 상기 캐비닛 전방으로 개구된 복수의 배기구를 형성하고, 상기 복수의 배기구는 일정간격 이격배치되어, 도어의 잠금시에도 배기구를 통해 공기가 원활하게 배출될 수 있다.And an exhaust duct for discharging air exchanged with the first circulation duct in the heat exchange duct to the outside of the cabinet, wherein the exhaust duct is disposed above the tub, and discharges air in front of the cabinet, and exhausts the exhaust duct. The duct forms a plurality of exhaust ports opened in front of the cabinet, and the plurality of exhaust ports are spaced at a predetermined interval so that air can be smoothly discharged through the exhaust port even when the door is locked.
상기 과제를 달성하기 위하여, 본 발명에 따른 식기세척기의 제어방법은, 터브 내부에 형성된 세척실로 세척수를 분사하여 상기 세척실에 거치된 세척대상을 세척하는 단계; 외부공기를 상기 터브의 일측에 배치된 열교환덕트 내부에 형성된 열교환유로로 유동시켜 캐비닛 외부로 배기하고, 상기 세척실 내부의 공기를 상기 열교환덕트 일측에 배치된 제1순환덕트 내부에 형성된 순환유로로 유동시켜 열교환된 공기를 제2순환덕트에서 가열시켜 상기 세척실로 공급하는 열풍순환단계; 및 상기 열교환덕트와 상기 제1순환덕트 사이에 형성된 가이드홀을 개폐하는 가이드 밸브를 개방하여, 상기 세척실 내부에서 상기 순환유로로 유동하는 공기의 일부를 상기 열교환유로로 공급하여 상기 열교환유로를 유동하는 외부공기와 혼합하여 상기 캐비닛 외부로 배기하고, 상기 세척실 내부에서 상기 순환유로로 유동하는 공기의 나머지 일부를 상기 제2순환덕트에서 가열시켜 상기 세척실로 공급하는 열풍배기단계를 포함하여, 터브 내부의 공기를 순환하여 건조시키고, 일정 수준이상의 건조가 행해지면 터브 내부의 공기를 외기와 혼합하여, 배출하여 건조의 속도를 증가시킬 수 있다. In order to achieve the above object, the control method of the dishwasher according to the present invention, spraying the washing water to the washing chamber formed in the tub to wash the washing target mounted on the washing chamber; The outside air flows to the heat exchange passage formed in the heat exchange duct disposed on one side of the tub and is exhausted to the outside of the cabinet, and the air flows in the cleaning chamber to the circulation passage formed inside the first circulation duct disposed on the side of the heat exchange duct. A hot air circulation step of supplying heat to the heat-exchanged air by a second circulation duct to the washing chamber; And a guide valve for opening and closing a guide hole formed between the heat exchange duct and the first circulation duct, supplying a part of air flowing into the circulation passage in the washing chamber to the heat exchange passage to flow the heat exchange passage. And a hot air exhaust step of mixing the outside air to exhaust the outside of the cabinet and heating the remaining portion of the air flowing from the inside of the washing chamber to the circulation passage in the second circulation duct to supply the washing chamber to the tub. When the internal air is circulated and dried, and a certain level of drying is performed, the air inside the tub may be mixed with the outside air and discharged to increase the speed of drying.
상기 열풍순환단계가 진행되고, 제1설정시간이 도과될 때, 상기 열풍배기단계를 수행하여, 일정 수준의 습도가 제거된 공기가 배출될 수 있다. When the hot air circulation step is performed and the first predetermined time is passed, the hot air exhaust step may be performed to discharge air from which a predetermined level of humidity has been removed.
기타 실시예들의 구체적인 사항들은 상세한 설명 및 도면들에 포함되어 있다.Specific details of other embodiments are included in the detailed description and the drawings.
본 발명의 식기세척기에 따르면 다음과 같은 효과가 하나 혹은 그 이상 있다.According to the dishwasher of the present invention, there are one or more of the following effects.
첫째, 본 발명의 식기세척기는 터브 내부의 공기의 습한 정도에 따라 터브 내부의 공기를 순환시키거나, 배기하여 건조의 성능을 향상시킬 수 있는 장점이 있다.First, the dishwasher of the present invention has the advantage of improving the drying performance by circulating or exhausting the air in the tub according to the humidity of the air in the tub.
둘째, 터브 내부의 공기의 습한 정도가 일정수준 이하에서 외부로 배출하여 식기세척기 주변의 구성을 손상시키지 않고, 건조단계를 수행할 수 있는 장점도 있다.Second, the humidity of the air inside the tub is discharged to the outside at a certain level or less, without damaging the configuration around the dishwasher, there is an advantage that can perform the drying step.
본 발명의 효과들은 이상에서 언급한 효과들로 제한되지 않으며, 언급되지 않은 또 다른 효과들은 청구범위의 기재로부터 당업자에게 명확하게 이해될 수 있을 것이다.The effects of the present invention are not limited to the above-mentioned effects, and other effects not mentioned will be clearly understood by those skilled in the art from the description of the claims.
도 1은 본 발명의 하나의 실시예에 따른 식기세척기의 개략 정단면도이다.1 is a schematic front cross-sectional view of a dishwasher according to one embodiment of the present invention.
도 2는 본 발명의 일 실시예에 따른 건조과정에서 식기세척기 내부에서 공기의 유동을 설명하기 위한 블록도이다. Figure 2 is a block diagram illustrating the flow of air in the dish washer in the drying process according to an embodiment of the present invention.
도 3은 본 발명의 일 실시예에 따른 건조과정에서 공기의 유동을 설명하기 위한 도면이다. 3 is a view for explaining the flow of air in the drying process according to an embodiment of the present invention.
도 4는 본 발명의 일 실시예에 따른 터브, 순환덕트 및 열교환덕트를 유동하는 공기에서 발생하는 열교환을 설명하기 위한 도면이다. 4 is a view for explaining the heat exchange generated in the air flowing through the tub, the circulation duct and the heat exchange duct according to an embodiment of the present invention.
도 5는 본 발명의 일 실시예에 따른 제1순환덕트의 내부구성을 설명하기 위한 도면이다. 5 is a view for explaining the internal configuration of the first circulation duct according to an embodiment of the present invention.
도 6은 도 5의 Ⅵ-Ⅵ’를 자른 단면도이다. 6 is a cross-sectional view taken along the line VI-VI ′ of FIG. 5.
도 7은 도 5의 도면에서 응축수의 유동을 설명하기 위한 도면이다. FIG. 7 is a view for explaining the flow of condensate in the drawing of FIG. 5.
도 8a는 본 발명의 일 실시예에 따른 순환모드에서의 가이드밸브의 배치 및 공기의 유동을 설명하기 위한 도면이다. 8A is a view for explaining the arrangement of the guide valve and the flow of air in the circulation mode according to an embodiment of the present invention.
도 8b는 본 발명의 일 실시예에 따른 배출모드에서의 가이드밸브의 배치 및 공기의 유동을 설명하기 위한 도면이다.8B is a view for explaining the arrangement of the guide valve and the flow of air in the discharge mode according to an embodiment of the present invention.
도 9는 본 발명의 일 실시예에 따른 제어부와 제어부에 의해 작동되는 구성과의 관계를 도시한 블록도이다.9 is a block diagram illustrating a relationship between a control unit and a configuration operated by the control unit according to an embodiment of the present invention.
도 10은 본 발명의 일 실시예에 따른 식기세척기의 제어방법에 대한 순서도이다. 10 is a flowchart illustrating a control method of the dish washer according to an embodiment of the present invention.
도 11은 본 발명의 일 실시예에 따른 식기세척기의 제어방법에서 건조단계를 설명하기 위한 순서도이다.11 is a flowchart illustrating a drying step in the control method of the dish washer according to an embodiment of the present invention.
본 발명의 이점 및 특징, 그리고 그것들을 달성하는 방법은 첨부되는 도면과 함께 상세하게 후술되어 있는 실시예들을 참조하면 명확해질 것이다. 그러나 본 발명은 이하에서 개시되는 실시예들에 한정되는 것이 아니라 서로 다른 다양한 형태로 구현될 수 있으며, 단지 본 실시예들은 본 발명의 개시가 완전하도록 하고, 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자에게 발명의 범주를 완전하게 알려주기 위해 제공되는 것이며, 본 발명은 청구항의 범주에 의해 정의될 뿐이다. 명세서 전체에 걸쳐 동일 참조 부호는 동일 구성 요소를 지칭한다.Advantages and features of the present invention, and methods for achieving them will be apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be embodied in various different forms, and the present embodiments merely make the disclosure of the present invention complete and common knowledge in the art to which the present invention pertains. It is provided to fully inform the person having the scope of the invention, and the invention is defined only by the scope of the claims. Like reference numerals refer to like elements throughout.
이하, 본 발명의 실시예들에 의하여 식기세척기를 설명하기 위한 도면들을 참고하여 본 발명에 대해 설명하도록 한다.Hereinafter, the present invention will be described with reference to the drawings for describing the dishwasher according to embodiments of the present invention.
<식기세척기 구성관련><Configuration of Dishwasher>
도 1은 본 발명의 하나의 실시예에 따른 식기세척기의 개략 정단면도이다.1 is a schematic front cross-sectional view of a dishwasher according to one embodiment of the present invention.
도 1을 참조하면, 본 실시예에 따른 식기세척기(10)는 외형을 형성하는 캐비닛(12), 캐비닛(12)에 결합되어 캐비닛(12) 내부를 개폐시키는 도어(16), 캐비닛(12) 내부에 설치되고, 내부에 배치되는 식기를 처리하는 세척실(14a)이 형성된 터브(14)를 포함한다. 캐비닛(12)과 터브(14)는 도어(16)가 배치되는 전면이 개방된 형태를 가진다. Referring to FIG. 1, the dishwasher 10 according to the present embodiment is coupled to a cabinet 12 and a cabinet 12 forming an outer shape, and a door 16 and a cabinet 12 that open and close the inside of the cabinet 12. It includes a tub 14 installed therein and formed with a washing chamber 14a for processing the dishes placed therein. The cabinet 12 and the tub 14 have a form in which the front surface on which the door 16 is disposed is opened.
본 실시예에 따른 식기세척기(10)는 사용자에 의해 투입된 세제를 보관하고, 세척단계에서 터브(14) 내부로 세제를 투입하는 디스펜서(미도시)를 포함할 수 있다. 상기 디스펜서는 도어(16)에 배치될 수 있다. The dishwasher 10 according to the present embodiment may include a dispenser (not shown) for storing the detergent introduced by the user and injecting the detergent into the tub 14 in the washing step. The dispenser may be disposed in the door 16.
본 실시예에 따른 캐비닛(12)은 외형을 형성하고, 일측이 개방될 수 있다. Cabinet 12 according to the present embodiment forms an outer shape, one side may be open.
본 실시예에 따른 터브(14)는 캐비닛(12)의 내측에 배치된다. 본 실시예에 따른 터브(14)는 캐비닛(12)과 사이에서, 이하에서 설명할 열교환덕트(80)와 순환덕트(60, 70)가 배치되는 공간을 형성할 수 있다. 본 실시예에 따른 터브(14)의 상면에는 터브(14) 내부의 세척실(14a)을 유동하는 공기가 순환덕트(60, 70)로 토출되는 순환덕트유입홀(62a)이 형성된다. 본 실시예에 따른 터브(14)의 측면에는 순환덕트(60, 70)를 유동하는 공기가 터브(14) 내부의 세척실(14a)로 배출되는 순환덕트배기홀(76)이 형성된다. The tub 14 according to the present embodiment is disposed inside the cabinet 12. The tub 14 according to the present exemplary embodiment may form a space between the cabinet 12 and the heat exchange duct 80 and the circulation ducts 60 and 70 to be described below. In the upper surface of the tub 14 according to the present embodiment, a circulation duct inlet hole 62a through which air flowing through the washing chamber 14a inside the tub 14 is discharged to the circulation ducts 60 and 70 is formed. At the side of the tub 14 according to the present embodiment, the circulation duct exhaust hole 76 through which air flowing in the circulation ducts 60 and 70 is discharged to the washing chamber 14a inside the tub 14 is formed.
본 실시예에 따른 식기세척기(10)는 상기 터브(14) 내부에서 식기를 수용하는 랙(36, 38), 상기 랙(36, 38)에 수용된 식기를 향해 세척수를 분사시키는 분사노즐(30, 32, 34), 상기 분사노즐(30, 32, 34)에 세척수를 공급하는 섬프(18), 상기 섬프(18)에 저장된 세척수를 분사모듈로 압송시키기는 세척펌프(20)를 포함한다. Dishwasher 10 according to the present embodiment is a rack (36, 38) for receiving the dishes in the tub 14, the spray nozzle 30 for spraying the washing water toward the dishes accommodated in the rack (36, 38) 32, 34, a sump 18 for supplying washing water to the injection nozzles 30, 32, and 34, and a washing pump 20 for pumping the washing water stored in the sump 18 into the injection module.
상기 랙(36, 38)은 세척실(14a) 상부에 배치되는 상부랙(36)과 상부랙(36) 하측에 배치되는 하부랙(38)을 포함한다. 분사노즐(30, 32, 34)은 세척실(14a) 상단에 배치되어 세척실(14a)로 세척수를 분사하는 탑분사노즐(30), 상부랙(36)과 하부랙(38) 사이에 배치되어, 상부랙(36) 또는 상부랙(36)과 하부랙(38)에 세척수를 분사하는 상부분사노즐(32) 및 하부랙(38) 하측에 배치되어, 하부랙(38)에 세척수를 분사하는 하부분사노즐(34)을 더 포함할 수 있다. 복수의 분사노즐(30, 32, 34) 각각은 복수의 분사노즐 연결관(40, 42, 44)으로 연결될 수 있다. The racks 36 and 38 include an upper rack 36 disposed above the washing chamber 14a and a lower rack 38 disposed below the upper rack 36. The spray nozzles 30, 32, and 34 are disposed on the upper side of the washing chamber 14a and disposed between the top spray nozzle 30, the upper rack 36, and the lower rack 38 for spraying the washing water into the washing chamber 14a. It is disposed below the upper injection nozzle 32 and the lower rack 38 for spraying the washing water to the upper rack 36 or the upper rack 36 and the lower rack 38, spraying the washing water to the lower rack (38) It may further include a lower portion four nozzles (34). Each of the plurality of injection nozzles 30, 32, and 34 may be connected to a plurality of injection nozzle connecting pipes 40, 42, and 44.
세척펌프(20) 내부에는 세척펌프(20) 내부의 세척수를 복수의 분사노즐로 공급되도록 회전하는 임펠러(22), 임펠러(22)를 회전시키는 세척모터(24) 및 세척펌프(20) 내부의 세척수를 가열하는 히터(26)를 포함할 수 있다. 세척펌프(20)에서 압송되는 세척수는 세척수공급관(46)을 통해 유동하며, 절환밸브(28)가 복수의 분사노즐(30, 32, 34) 중 적어도 하나와 세척수공급관(46)을 연결시킨다. In the washing pump 20, the impeller 22 rotating to supply the washing water in the washing pump 20 to the plurality of injection nozzles, the washing motor 24 rotating the impeller 22, and the washing pump 20 inside the washing pump 20. It may include a heater 26 for heating the wash water. The washing water pumped from the washing pump 20 flows through the washing water supply pipe 46, and the switching valve 28 connects at least one of the plurality of injection nozzles 30, 32, and 34 to the washing water supply pipe 46.
본 실시예에 따른 식기세척기(10)는 섬프(18) 또는 분사모듈에 물을 공급하는 급수어셈블리, 섬프(18)에 연결되어 세척수를 외부로 배출시키는 배수어셈블리, 섬프(18)에 설치되어 세척수를 여과시키는 필터(19) 및 섬프(18)에 설치되어 세척수를 가열시키는 세척수히팅모듈(56)을 더 포함할 수 있다. The dishwasher 10 according to the present embodiment is connected to a water supply assembly for supplying water to the sump 18 or the injection module, a drainage assembly for discharging the washing water to the outside by being connected to the sump 18, and the wash water is installed. It may further include a washing water heating module 56 installed in the filter 19 and the sump 18 to filter the heating water.
본 실시예에 따른 식기세척기는 사용자에게 명령을 입력받는 입력부(미도시)와 사용자에게 식기세척기의 진행상태를 표시하거나 알림을 표시하는 표시부(미도시)를 더 포함할 수 있다. 입력부는 터치입력방식이나 버튼입력방식을 사용할 수 있으며, 표시부는 디스플레이나 경고램프 등이 사용될 수 있다.The dishwasher according to the present embodiment may further include an input unit (not shown) for receiving a command from a user and a display unit (not shown) for displaying a progress state or displaying a notification to the user. The input unit may use a touch input method or a button input method, and the display unit may use a display or a warning lamp.
도 2는 본 발명의 일 실시예에 따른 건조과정에서 식기세척기 내부에서 공기의 유동을 설명하기 위한 블록도이다. 도 3은 본 발명의 일 실시예에 따른 건조과정에서 공기의 유동을 설명하기 위한 도면이다. 도 4는 본 발명의 일 실시예에 따른 터브, 순환덕트 및 열교환덕트를 유동하는 공기에서 발생하는 열교환을 설명하기 위한 도면이다. 도 5는 본 발명의 일 실시예에 따른 제1순환덕트의 내부구성을 설명하기 위한 도면이다. 도 6은 도 5의 Ⅵ-Ⅵ’를 자른 단면도이다. 도 7은 도 5의 도면에서 응축수의 유동을 설명하기 위한 도면이다. 도 8a는 본 발명의 일 실시예에 따른 순환모드에서의 가이드밸브의 배치 및 공기의 유동을 설명하기 위한 도면이다. 도 8b는 본 발명의 일 실시예에 따른 배출모드에서의 가이드밸브의 배치 및 공기의 유동을 설명하기 위한 도면이다. Figure 2 is a block diagram illustrating the flow of air in the dish washer in the drying process according to an embodiment of the present invention. 3 is a view for explaining the flow of air in the drying process according to an embodiment of the present invention. 4 is a view for explaining the heat exchange generated in the air flowing through the tub, the circulation duct and the heat exchange duct according to an embodiment of the present invention. 5 is a view for explaining the internal configuration of the first circulation duct according to an embodiment of the present invention. 6 is a cross-sectional view taken along the line VI-VI ′ of FIG. 5. FIG. 7 is a view for explaining the flow of condensate in the drawing of FIG. 5. 8A is a view for explaining the arrangement of the guide valve and the flow of air in the circulation mode according to an embodiment of the present invention. 8B is a view for explaining the arrangement of the guide valve and the flow of air in the discharge mode according to an embodiment of the present invention.
이하에서는 도 2 내지 도 8b를 참조하여, 본 실시예에 따른 순환덕트와 열교환덕트를 포함하는 식기세척기의 구조를 설명한다. Hereinafter, a structure of a dish washing machine including a circulation duct and a heat exchange duct according to the present embodiment will be described with reference to FIGS. 2 to 8B.
본 실시예에 따른 식기세척기(10)는 세척실(14a) 내부의 공기가 터브(14) 외부로 유동하여 순환하는 공간을 형성하는 순환덕트(60, 70), 캐비닛(12) 외부에서 공기를 유입하여 순환덕트(60, 70)와 열교환하도록 열교환유로(80a)를 형성하는 열교환덕트(80) 및 순환덕트(60, 70)와 열교환덕트(80)의 공기의 유동을 형성하는 팬어셈블리(100)를 포함한다.The dishwasher 10 according to the present exemplary embodiment includes air circulating ducts 60 and 70 that form a space in which the air inside the washing chamber 14a flows out of the tub 14 and circulates outside the cabinet 12. A heat exchange duct 80 forming a heat exchange passage 80a to flow in and exchange heat with the circulation ducts 60 and 70 and a fan assembly 100 forming a flow of air between the circulation ducts 60 and 70 and the heat exchange duct 80. ).
순환덕트(60, 70)는 터브(14)에서 배출된 공기를 열교환덕트(80)와 열교환하도록 순환유로(60a)를 형성하는 제1순환덕트(60)와, 열교환된 공기를 가열하여 터브(14) 내부의 세척실(14a)로 공급하는 제2순환덕트(70)를 포함한다. The circulation ducts 60 and 70 are configured to heat the air exchanged with the first circulation duct 60 forming the circulation passage 60a so as to heat exchange the air discharged from the tub 14 with the heat exchange duct 80. 14) The second circulation duct 70 is supplied to the interior of the washing chamber (14a).
제1순환덕트(60)는 열교환덕트(80)와 캐비닛(12) 사이에 배치된다. 본 실시예에 따른 제1순환덕트(60)는 열교환덕트(80)와 면접하게 배치되어, 열교환덕트(80)를 유동하는 외부에서 유입된 공기와 열교환할 수 있다. 또한, 제1순환덕트(60)는 캐비닛(12)와 면접하게 배치되어, 캐비닛(12) 외부를 유동하는 공기와 열교환할 수 있다. The first circulation duct 60 is disposed between the heat exchange duct 80 and the cabinet 12. The first circulation duct 60 according to the present exemplary embodiment may be disposed to be in interview with the heat exchange duct 80 to exchange heat with air introduced from the outside flowing the heat exchange duct 80. In addition, the first circulation duct 60 may be disposed in interview with the cabinet 12 to exchange heat with air flowing outside the cabinet 12.
도 4를 참조하면, 제1순환덕트(60) 내부에 형성된 순환유로(60a)를 유동하는 공기는 열교환유로(70a)를 유동하는 공기와 열교환하여, 응축수를 생성하고, 캐비닛(12) 외부를 유동하는 외부공기와 열교환하여 응축수를 행성할 수 있다. 제1순환덕트(60)는 캐비닛(12)과 터브(14)의 측면 사이에 배치되도록 내부가 중공인 판형상의 형태를 가질 수 있다. Referring to FIG. 4, the air flowing through the circulation passage 60a formed inside the first circulation duct 60 exchanges heat with the air flowing through the heat exchange passage 70a to generate condensed water and the outside of the cabinet 12. Condensate can be planetary by heat exchange with flowing external air. The first circulation duct 60 may have a plate shape having a hollow inside so as to be disposed between the side of the cabinet 12 and the tub 14.
제1순환덕트(60)는 터브(14)의 측면과 캐비닛(12) 사이에 배치되어, 열교환덕트(80)와 열교환하는 열교환-순환덕트(64)와 터브(14)에서 배출된 공기를 열교환-순환덕트(64)로 보내는 연결덕트(62)를 포함할 수 있다. The first circulation duct 60 is disposed between the side surface of the tub 14 and the cabinet 12 to exchange heat between the heat exchange-circulation duct 64 and the air discharged from the tub 14 to exchange heat with the heat exchange duct 80. It may comprise a connecting duct 62 to the circulation duct (64).
연결덕트(62)는 터브(14) 상측에 형성되는 순환덕트유입홀(62a)과 열교환-순환덕트(64)를 연결한다. 연결덕트(62)는 터브(14)의 상측에 배치되어, 순환덕트유입홀(62a)로 배출된 세척실(14a)의 공기를 열교환-순환덕트(64)로 보낸다. The connection duct 62 connects the circulation duct inlet hole 62a formed on the tub 14 and the heat exchange-circulation duct 64. The connection duct 62 is disposed above the tub 14 to send air from the washing chamber 14a discharged to the circulation duct inlet hole 62a to the heat exchange-circulation duct 64.
열교환-순환덕트(64) 내부에는 공기의 유동을 가이드하는 복수의 유로가이드(66)가 형성될 수 있다. 유로가이드(66)는 열교환-순환덕트(64) 내부를 유동하는 공기의 속도를 조절하거나, 유동하는 길이를 원거리로 하여 효과적인 열교환이 이루어질 수 있도록 한다. A plurality of flow path guides 66 may be formed inside the heat exchange-circulation duct 64 to guide the flow of air. The flow guide 66 adjusts the speed of the air flowing in the heat exchange-circulation duct 64 or allows the effective length of heat exchange to be made at a long distance.
본 실시예에 따른 유로가이드(66)는 연결덕트(62)을 통해 유입되는 공기의 방향을 전환하여, 순환유로(60a)의 길이를 확장하도록 복수개가 형성될 수 있다.The flow guide 66 according to the present exemplary embodiment may be formed to change the direction of the air flowing through the connection duct 62 to extend the length of the circulation flow path 60a.
열교환-순환덕트(64) 내부에는 열교환-순환덕트(64)를 유동하는 공기에서 응축된 응축수의 이동을 가이드하는 응축수가이드(68)가 형성된다. Inside the heat exchange-circulation duct 64, a condensation water guide 68 is formed to guide the movement of condensed water condensed in the air flowing through the heat exchange-circulation duct 64.
본 실시예에 따른 응축수가이드(68)는 유로가이드(66) 하측에 배치된다. 응축수가이드(68)는 열교환-순환덕트(64)의 내측벽면을 따라 형성되는 응축수를 터브(14)의 측면에 형성된 순환덕트배기홀(76)로 유동하도록 안내한다. 본 실시예에 따른 응축수가이드(68)는 열교환-순환덕트(64)의 일측내벽에 형성되는 제1응축수가이드(68a)와 열교환-순환덕트(64)의 타측내벽에 형성되는 제2응축수가이드(68b)를 포함한다. 본 실시예에 따른 응축수가이드(68)는 전방으로 하향경사지게 형성된다.The condensation water guide 68 according to the present embodiment is disposed below the flow path guide 66. The condensation water guide 68 guides the condensed water formed along the inner wall surface of the heat exchange-circulating duct 64 to the circulation duct exhaust hole 76 formed on the side surface of the tub 14. The condensation water guide 68 according to the present embodiment includes a first condensation water guide 68a formed on one inner wall of the heat exchange-circulation duct 64 and a second condensation water guide formed on the other inner wall of the heat exchange-circulation duct 64. 68b). The condensation water guide 68 according to the present embodiment is formed to be inclined downward forward.
본 실시예에 따른 열교환-순환덕트(64)은 하부의 일측에 응축수를 배출하는 응축수배출홀(69a)이 형성된다. 본 실시예에 따른 응축수배출홀(69a)은 열교환-순환덕트(64)와 제2순환덕트(70)를 연통시킨다. The heat exchange-circulation duct 64 according to the present embodiment has a condensate discharge hole 69a for discharging condensate at one side of the lower portion. The condensate discharge hole 69a according to the present embodiment communicates the heat exchange-circulation duct 64 and the second circulation duct 70.
본 실시예에 따른 열교환-순환덕트(64)에는 응축수가이드(68a, 68b)를 통해 유동하는 응축수를 응축수배출홀(69a)로 가이드하는 응축수배출가이드(69)가 배치된다. 본 실시예에 따른 응축수배출가이드(69)는 응축수배출홀(69a) 하측에 배치되며, 터브(14)의 측면에 형성되는 순환덕트배기홀(76)로 응축수를 가이드한다.In the heat exchange-circulation duct 64 according to the present embodiment, a condensate discharge guide 69 for guiding condensate flowing through the condensate guides 68a and 68b to the condensate discharge hole 69a is disposed. The condensate discharge guide 69 according to the present embodiment is disposed below the condensate discharge hole 69a and guides the condensate to the circulation duct exhaust hole 76 formed on the side surface of the tub 14.
열교환-순환덕트(64) 내부에는 열교환으로 생성되는 응축수를 순환덕트배기홀(76)로 안내하는 복수의 응축수가이드(68)를 포함할 수 있다. 복수의 응축수가이드(68)는 열교환-순환덕트(64)의 내측 일측면과 타측면에 각각 배치될 수 있다.The heat exchange-circulation duct 64 may include a plurality of condensate guides 68 for guiding condensate generated by the heat exchange to the circulation duct exhaust hole 76. The plurality of condensation guides 68 may be disposed on one inner side and the other side of the heat exchange-circulation duct 64, respectively.
제2순환덕트(70)는 제1순환덕트(60)를 유동하여 열교환된 공기를 터브(14) 내부로 공급한다. 제2순환덕트(70) 내부에는 순환부히터(78)가 배치될 수 있다. 따라서, 제2순환덕트(70)를 유동하는 공기는 순환부히터(78)에 의해 가열되어 터브(14) 내부로 공급될 수 있다. The second circulation duct 70 flows the first circulation duct 60 to supply heat-exchanged air into the tub 14. The circulation unit heater 78 may be disposed in the second circulation duct 70. Therefore, the air flowing through the second circulation duct 70 may be heated by the circulation heater 78 and supplied into the tub 14.
제2순환덕트(70)의 단부에는 터브(14) 내부의 세척실(14a)과 연통하는 순환덕트배기홀(76)이 형성된다. 순환덕트(60, 70)의 상류에는 공기가 상측으로 유동시키는 상측유로(72)가 형성되고, 하류에는 상측으로 유동한 공기를 하측으로 유동시키는 하측유로(74)가 형성되며, 하측유로(74)의 하류에 순환덕트배기홀(76)이 형성된다. 순환부히터(78)는 상측유로의 상류에 배치될 수 있다. 즉, 순환부히터(78)은 상측유로(72)의 하측에 배치된다. At the end of the second circulation duct 70, a circulation duct exhaust hole 76 communicating with the washing chamber 14a in the tub 14 is formed. An upper flow passage 72 is formed at an upstream side of the circulation ducts 60 and 70, and an air passage 72 is formed at the downstream thereof, and a lower flow passage 74 is formed to flow air flowed upwardly downward. Downstream of the circulation duct exhaust hole 76 is formed. The circulation heater 78 may be disposed upstream of the upper flow passage. That is, the circulation heater 78 is disposed below the upper flow passage 72.
따라서, 터브(14) 내의 세척실(14a)에서 제2순환덕트(70)로 비산된 세척수가 순환부히터(78)로 유입되는 것을 차단할 수 있다. Therefore, the washing water scattered from the washing chamber 14a in the tub 14 to the second circulation duct 70 may be prevented from flowing into the circulation heater 78.
열교환덕트(80)는 터브(14)의 측면과 제1순환덕트(60) 사이에 배치될 수 있다. 본 실시예에 따른 열교환덕트(80)는 터브(14)와 캐비닛(12) 사이의 공간에 배치되도록 내부가 중공인 판형상의 형태를 가질 수 있다. The heat exchange duct 80 may be disposed between the side surface of the tub 14 and the first circulation duct 60. The heat exchange duct 80 according to the present exemplary embodiment may have a plate shape having a hollow inside so as to be disposed in a space between the tub 14 and the cabinet 12.
열교환덕트(80)를 유동하는 외부에서 유입된 공기는 제1순환덕트(60)와 열교환할 수 있다. 또한, 열교환덕트(80)를 유동하는 공기는 터브(14) 내부에서 세척실(14a)을 유동하는 공기와 열교환할 수 있다. 따라서, 터브(14)의 세척실(14a)을 유동하는 고온다습한 공기와 제1순환덕트(60)를 유동하는 고온다습한 공기는 열교환덕트(80)를 유동하는 외부공기와 열교환으로 응축수를 생성할 수 있다.Air introduced from the outside flowing the heat exchange duct 80 may exchange heat with the first circulation duct 60. In addition, the air flowing through the heat exchange duct 80 may exchange heat with the air flowing through the washing chamber 14a in the tub 14. Therefore, the hot and humid air flowing through the washing chamber 14a of the tub 14 and the hot and humid air flowing through the first circulation duct 60 are used to exchange condensed water by heat exchange with external air flowing through the heat exchange duct 80. Can be generated.
열교환덕트(80) 내부에도 별도의 유로가이드(미도시)가 형성될 수 있다.A separate flow guide (not shown) may also be formed inside the heat exchange duct 80.
본 실시예에 따른 식기세척기(10)는 열교환덕트(80)에서 제1순환덕트(60)와 열교환된 공기를 캐비닛(12) 외부로 배출하는 배기덕트(86)를 포함할 수 있다. 배기덕트(86)는 터브(14)의 상측에 배치되고, 캐비닛(12)의 전방으로 공기를 배출시킬 수 있다. The dishwasher 10 according to the present exemplary embodiment may include an exhaust duct 86 for discharging air heat-exchanged with the first circulation duct 60 in the heat exchange duct 80 to the outside of the cabinet 12. The exhaust duct 86 is disposed above the tub 14, and can exhaust air to the front of the cabinet 12.
배기덕트(86)는 터브(14)의 상측 전방으로 배기구(86a, 86b)를 형성할 수 있다. 본 실시예에 따른 배기덕트(86)는 터브(14)의 상측에서 전방으로 치우쳐 배치되고, 전방으로 개구된 복수의 배기구(86a, 86b)를 포함할 수 있다. 본 실시예에 따른 배기구(86a, 86b)는 일정간격 이격 배치된다. 본 실시예에 따른 배기구(86a, 86b)는 터브(14)의 상측 중앙부분을 기준으로 좌우로 일정간격 이격된 위치에서 형성될 수 있다. The exhaust duct 86 may form the exhaust ports 86a and 86b in the upper front of the tub 14. The exhaust duct 86 according to the present exemplary embodiment may be disposed to be biased forward from the upper side of the tub 14 and may include a plurality of exhaust ports 86a and 86b opened forward. Exhaust ports 86a and 86b according to the present embodiment are arranged at regular intervals. Exhaust ports 86a and 86b according to the present exemplary embodiment may be formed at positions spaced apart from each other by left and right with respect to the upper center portion of the tub 14.
본 실시예에 따른 식기세척기(10)는 순환유로(60a)와 열교환유로(80a) 사이에 배치되어, 순환유로(60a)를 유동하는 공기를 열교환유로(80a)로 안내하는 가이드밸브(90)를 포함한다.The dishwasher 10 according to the present embodiment is disposed between the circulation passage 60a and the heat exchange passage 80a to guide the air flowing through the circulation passage 60a to the heat exchange passage 80a. It includes.
가이드밸브(90)는 제1순환덕트(60) 내부에 형성된 순환유로(60a)와 열교환덕트(80) 내부에 형성된 열교환유로(80a) 사이에 형성된 가이드홀(90a)에 배치된다. 가이드밸브(90)는 가이드홀(90a)을 폐쇄하여, 순환유로(60a)와 열교환유로(80a)를 구획할 수 있다. 가이드밸브(90)는 가이드홀(90a)을 개방하여, 순환유로(60a)를 유동하는 공기를 열교환유로(80a)로 가이드할 수 있다. The guide valve 90 is disposed in the guide hole 90a formed between the circulation passage 60a formed in the first circulation duct 60 and the heat exchange passage 80a formed in the heat exchange duct 80. The guide valve 90 may close the guide hole 90a to partition the circulation passage 60a and the heat exchange passage 80a. The guide valve 90 may open the guide hole 90a to guide the air flowing through the circulation passage 60a to the heat exchange passage 80a.
가이드밸브(90)는 열교환-순환덕트(64)와, 열교환덕트(80)의 상측에 배치된다. 가이드밸브(90)는 하단이 순환유로(60a)와 열교환유로(80a) 사이에서 회전가능하게 고정되고, 상단이 순환유로(60a)와 열교환유로(80a)를 구획하는 격벽(92)에 맞닿거나, 이격된다. 본 실시예에 따른 가이드밸브(90)는 순환유로(60a) 방향으로 회전하여 격벽(92)에 이격된다. 본 실시예에 따른 가이드밸브(90)는 순환유로(60a) 측으로 회전할 때, 순환유로(60a)의 상측으로 경사지게 배치된다. The guide valve 90 is disposed above the heat exchange-circulation duct 64 and the heat exchange duct 80. The lower end of the guide valve 90 is rotatably fixed between the circulation passage 60a and the heat exchange passage 80a, and the upper end of the guide valve 90 abuts on the partition wall 92 that divides the circulation passage 60a and the heat exchange passage 80a. , Are spaced apart. The guide valve 90 according to the present embodiment is rotated in the circulation flow path 60a to be spaced apart from the partition wall 92. The guide valve 90 according to the present exemplary embodiment is disposed to be inclined upwardly of the circulation passage 60a when the guide valve 90 rotates toward the circulation passage 60a.
외부에서 캐비닛(12) 내부로 유입된 공기는 외기유입덕트(미도시)를 통해 열교환덕트(80)로 유동할 수 있다. 본 발명의 일 실시예에 따른 외기유입덕트는 팬어셈블리(100)의 팬모터(134)가 배치된 둘레면의 일측으로 형성될 수 있다. 이 경우, 외기는 캐비닛(12)의 후방으로 유입될 수 있다. 본 발명의 다른 실시예에 따른 외기유입덕트는 팬어셈블리(100)의 하측으로 배치될 수 있다. 이 경우, 외기는 캐비닛(12)의 하측을 통해 캐비닛(12) 내부로 유입될 수 있다. 이 밖에, 캐비닛(12)의 하측 전방으로 통해 외기가 유입되거나, 다른 방향으로 외기가 유입되는 것도 가능하다. Air introduced into the cabinet 12 from the outside may flow to the heat exchange duct 80 through an outside air inlet duct (not shown). The air inlet duct according to the exemplary embodiment of the present invention may be formed at one side of the circumferential surface on which the fan motor 134 of the fan assembly 100 is disposed. In this case, the outside air may flow into the rear of the cabinet 12. The air inlet duct according to another embodiment of the present invention may be disposed below the fan assembly 100. In this case, the outside air may be introduced into the cabinet 12 through the lower side of the cabinet 12. In addition, outside air may flow in through the front lower side of the cabinet 12, or outside air may flow in the other direction.
팬어셈블리(100)는 제1순환덕트(60)를 유동하는 공기를 제2순환덕트(70)로 보내고, 외부에서 캐비닛(12) 내부로 유입된 공기를 열교환덕트(80)로 보낼 수 있다. The fan assembly 100 may send air flowing through the first circulation duct 60 to the second circulation duct 70, and send air introduced into the cabinet 12 from the outside to the heat exchange duct 80.
본 실시예에 따른 팬어셈블리(100) 내부에는 제1순환덕트(60)와 제2순환덕트(70)를 연통시키는 제1챔버(112)와 외기유입덕트와 열교환덕트(80)를 연통시키는 제2챔버(114)가 형성된다. 제1챔버(112)에는 제1순환덕트(60)의 공기를 제2순환덕트(70)로 유동시키는 제1팬(118)이 배치되고, 제2챔버(114)에는 외기유입덕트의 공기를 열교환덕트(80)로 유동시키는 제2팬(120)이 배치될 수 있다. 또한, 팬어셈블리(100)는 제1팬(118)과 제2팬(120)을 동시에 회전시키는 팬모터(134)를 포함할 수 있다. 팬모터(134)은 제1팬(118) 또는 제2팬(120)의 일측에 배치되어, 제1팬(118)과 제2팬(120)을 동시에 회전시킨다. 본 실시예에 따른 팬어셈블리(100)는 터브(14)의 하측에 배치된다. 본 실시예에 따른 팬어셈블리(100)는 2개의 팬(118, 120)을 하나의 팬모터(134)로 구동시키는 구조를 가진다.In the fan assembly 100 according to the present embodiment, the first chamber 112 which communicates the first circulation duct 60 and the second circulation duct 70, and the external air inlet duct and the heat exchange duct 80 communicate with each other. Two chambers 114 are formed. The first chamber 112 is provided with a first fan 118 for flowing the air of the first circulation duct 60 to the second circulation duct 70, the air of the outside air inlet duct is provided in the second chamber (114). The second fan 120 may be disposed to flow into the heat exchange duct 80. In addition, the fan assembly 100 may include a fan motor 134 for rotating the first fan 118 and the second fan 120 at the same time. The fan motor 134 is disposed on one side of the first fan 118 or the second fan 120 to simultaneously rotate the first fan 118 and the second fan 120. The fan assembly 100 according to the present embodiment is disposed below the tub 14. The fan assembly 100 according to the present exemplary embodiment has a structure in which two fans 118 and 120 are driven by one fan motor 134.
도 9는 본 발명의 일 실시예에 따른 제어부와 제어부에 의해 작동되는 구성과의 관계를 도시한 블록도이다. 9 is a block diagram illustrating a relationship between a control unit and a configuration operated by the control unit according to an embodiment of the present invention.
본 실시예에 따른 식기세척기는 가이드밸브(90)의 배치를 변경시키는 제어부(200)를 포함한다. 본 실시예에 따른 제어부(200)는 세척실(14a) 내부의 세척대상을 건조하는 건조행정에서, 팬모터(122)와 순환부히터(78)를 작동시킬 수 있다. 본 실시예에 따른 제어부(200)는 급수밸브()와 배수펌프()를 제어하여, 식기세척기(10) 내부로 세척수를 공급받거나, 식기세척기(10) 외부로 세척수를 배출할 수 있다. The dishwasher according to the present embodiment includes a controller 200 for changing the arrangement of the guide valve 90. The controller 200 according to the present exemplary embodiment may operate the fan motor 122 and the circulating heater 78 in a drying stroke for drying the washing object in the washing chamber 14a. The controller 200 according to the present exemplary embodiment may control the water supply valve and the drain pump to receive the washing water into the dishwasher 10 or discharge the washing water to the outside of the dishwasher 10.
본 실시예에 따른 제어부(200)는 세척모터(24)의 작동을 제어하여, 세척수를 복수의 분사노즐(30, 32, 34)로 공급할 수 있다. 본 실시예에 따른 제어부(200)는 히터(26)의 작동을 제어하여, 세척수를 가열할 수 있다. 본 실시예에 따른 제어부(200)는 절환밸브(28)를 제어하여, 세척펌프(20)에서 압송되는 세척수를 복수의 분사노즐(30, 32, 34) 중 적어도 하나로 공급할 수 있다. The controller 200 according to the present exemplary embodiment may control the operation of the washing motor 24 to supply the washing water to the plurality of injection nozzles 30, 32, and 34. The controller 200 according to the present exemplary embodiment may control the operation of the heater 26 to heat the washing water. The controller 200 according to the present exemplary embodiment may control the switching valve 28 to supply the washing water pumped from the washing pump 20 to at least one of the plurality of injection nozzles 30, 32, and 34.
도 10은 본 발명의 일 실시예에 따른 식기세척기의 제어방법에 대한 순서도이다. 도 11은 본 발명의 일 실시예에 따른 식기세척기의 제어방법에서 건조단계를 설명하기 위한 순서도이다. 10 is a flowchart illustrating a control method of the dish washer according to an embodiment of the present invention. 11 is a flowchart illustrating a drying step in the control method of the dish washer according to an embodiment of the present invention.
이하에서는 도 10 내지 도 11을 참조하여, 본 발명의 실시예에 따른 식기세척기의 제어방법을 설명한다. Hereinafter, a method of controlling a dish washing machine according to an embodiment of the present invention will be described with reference to FIGS. 10 to 11.
본 발명에 따른 식기세척기 제어방법은 예비세척단계(s100), 스팀세척단계(s200), 본세척단계(s300), 헹굼단계(s400) 및 건조단계(s500)을 순차적으로 수행할 수 있다. The dish washing machine control method according to the present invention may sequentially perform a preliminary washing step (s100), steam washing step (s200), main washing step (s300), rinsing step (s400) and drying step (s500).
예비세척단계(s100)는 세척수를 세척대상에 분사하여 세척대상에 붙은 오물을 제거하는 행정이다. 예비세척단계(s100)에서 제어부(110)는 급수밸브(50)를 제어하여 외부수원으로부터 세척수를 섬프(18) 내로 공급한다. 급수 후, 제어부(200)는 세척펌프(20)를 동작하여 섬프(18) 내의 세척수를 압송하며 절환밸브(28)을 제어하여 복수의 분사노즐(30, 32, 34) 중 적어도 하나를 통하여 세척수를 분사한다. 복수의 분사노즐(30, 32, 34) 중 적어도 하나를 통하여 분사된 세척수는 세척대상에 붙은 오물을 터브(14)의 바닥으로 떨어뜨려 필터(19)에 수집시킨다. 세척수 분사 후, 제어부(200)는 배수펌프(54)를 동작하여 섬프(18) 내의 세척수를 외부로 배수한다.Pre-cleaning step (s100) is a stroke for removing the dirt attached to the washing target by spraying the washing water to the washing target. In the preliminary washing step (s100), the controller 110 controls the water supply valve 50 to supply the washing water from the external water source into the sump 18. After the water supply, the control unit 200 operates the washing pump 20 to pump the washing water in the sump 18 and controls the switching valve 28 to wash the washing water through at least one of the plurality of injection nozzles 30, 32, and 34. Spray it. The washing water sprayed through at least one of the plurality of spray nozzles 30, 32, and 34 drops the dirt attached to the washing object to the bottom of the tub 14 and collects the filter 19. After the washing water injection, the control unit 200 operates the drain pump 54 to drain the washing water in the sump 18 to the outside.
본 실시예에서 예비세척단계(s100)는 실시예에 따라 적어도 1회 이상 다양한 횟수로 수행될 수 있다.In the present embodiment, the preliminary washing step s100 may be performed at various times at least once or more times according to the embodiment.
스팀세척단계(s200)는 가열된 세척수를 세척대상에 분사하고 스팀을 세척대상에 작용하여 살균과 함께 세척대상에 붙은 오물을 불리는 행정이다. 본 실시예에 따른 스팀세척단계(s200)는 스팀과 고온의 세척수가 동시에 분사할 수 있다. Steam washing step (s200) is a stroke called the dirt attached to the washing target with sterilization by spraying the heated washing water to the washing target and steam to the washing target. In the steam washing step s200 according to the present embodiment, steam and high temperature washing water may be sprayed at the same time.
이 경우, 스팀노즐(미도시)을 통해 분사되는 스팀은 세척대상에 작용하여 살균 또는 세척대상에 붙은 오물을 불릴 수 있고, 스팀노즐을 통해 배출되는 고온의 세척수는 터브(14)의 바닥으로 흐르게 하여, 터브(14)의 바닥을 살균 또는 터브(14)의 바닥에 붙은 오물을 제거할 수 있다. In this case, the steam injected through the steam nozzle (not shown) may act on the cleaning object to call the dirt attached to the sterilization or cleaning object, and the hot washing water discharged through the steam nozzle flows to the bottom of the tub 14. Thus, the bottom of the tub 14 can be sterilized or dirt stuck to the bottom of the tub 14 can be removed.
스팀세척단계(s200)에 대한 자세한 설명은 도 9 이하를 참조하여 후술한다.Detailed description of the steam washing step (s200) will be described later with reference to FIG.
본세척단계(s300)는, 가열된 세척수를 세척대상에 분사하여 세척대상을 가열하며 세척대상에 붙은 오물을 제거하는 행정이다. 본세척단계(s300)에서 제어부(200)는 급수밸브(50)를 제어하여 외부수원으로부터 세척수를 섬프(18)에 공급한다. 이후, 히터(26)를 제어하여 세척수를 가열하고, 세척펌프(20)를 동작하여 복수의 분사노즐(30, 32, 34) 중 적어도 하나를 통하여 가열된 세척수를 분사한다. 이 때, 도어(16)에 배치된 디스펜서(미도시)가 개방되어, 터브(14) 내부를 유동하는 세척수에 세제가 혼합되어, 세척대상을 세척할 수 있다. 이후, 배수펌프(54)를 동작하여 섬프(18) 내의 세척수를 외부로 배수한다. The main washing step (s300) is a stroke for spraying the heated washing water to the washing target to heat the washing target and to remove the dirt attached to the washing target. In the main washing step (s300), the control unit 200 controls the water supply valve 50 to supply the washing water from the external water source to the sump 18. Thereafter, the heater 26 is controlled to heat the washing water, and the washing pump 20 is operated to spray the heated washing water through at least one of the plurality of spray nozzles 30, 32, and 34. At this time, the dispenser (not shown) disposed in the door 16 is opened, the detergent is mixed with the washing water flowing in the tub 14, the washing object can be washed. Thereafter, the drain pump 54 is operated to drain the washing water in the sump 18 to the outside.
헹굼단계(s400)는, 세척대상에 붙은 잔여 오물을 제거하거나, 세제가 혼합된 세척수로 씻겨진 세척대상을 헹구는 행정이다. 헹굼단계(s400)에서 제어부(200)는 급수밸브(50)를 제어하여 외부수원으로부터 세척수를 섬프(18)에 공급한 후, 세척펌프(20)를 동작하여 복수의 분사노즐(30, 32, 34) 중 적어도 하나를 통하여 세척수를 분사한다. 이후, 배수펌프(54)를 동작하여 섬프(18) 내의 세척수를 외부로 배수한다. 헹굼단계(s400)시 헹굼세제가 세척수와 혼합될 수 있다.The rinsing step (s400) is a stroke for removing residual dirt attached to the washing object or rinsing the washing object washed with washing water mixed with detergent. In the rinsing step (s400), the controller 200 controls the water supply valve 50 to supply the washing water from the external water source to the sump 18, and then operates the washing pump 20 to operate the plurality of injection nozzles 30, 32, and the like. 34) The washing water is sprayed through at least one of them. Thereafter, the drain pump 54 is operated to drain the washing water in the sump 18 to the outside. In the rinsing step (S400), the rinsing detergent may be mixed with the washing water.
건조단계(s500)는 터브(14) 내부의 공기를 순환시키면서, 순환되는 공기를 열교환 및 가열하여, 세척실(14a) 내부를 건조시키는 행정이다. 건조단계(s500)에서 제어부(200)는 팬모터(122)를 작동시켜, 순환덕트(60, 70)와 열교환덕트(80) 내부로 공기를 유동시킬 수 있다. 또한, 제어부(200)는 순환부히터(78)를 작동시켜, 터브(14) 내부로 유입되는 순환공기를 가열할 수 있다. The drying step s500 is a stroke for drying the inside of the washing chamber 14a while circulating air in the tub 14 by heat-exchanging and heating the circulated air. In the drying step (s500), the control unit 200 may operate the fan motor 122 to flow air into the circulation ducts 60 and 70 and the heat exchange duct 80. In addition, the controller 200 may operate the circulation heater 78 to heat the circulating air introduced into the tub 14.
헹궁단계(s400)와 건조단계(s500) 사이에 가열된 세척수를 세척대상에 분사하여 세척대상을 가열하는 가열행굼단계를 더 추가하는 것도 가능하다. It is also possible to further add a heating rinse step of heating the washing object by spraying the washing water heated between the rinsing step (s400) and the drying step (s500).
건조단계(s500)는 가이드밸브(90)가 가이드홀(90a)을 닫은 상태로 작동되는 열풍순환단계(s510)와, 가이드밸브(90)가 가이드홀(90a)을 개방한 상태로 작동되는 열풍배출단계(s530)을 포함한다.Drying step (s500) is a hot air circulation step (s510) is operated with the guide valve 90 closed the guide hole (90a), and hot air is operated with the guide valve 90 is open the guide hole (90a) It comprises a discharge step (s530).
열풍순환단계(s510)에서는 가이드밸브(90)가 가이드홀(90a)을 폐쇄한 상태로 팬모터(122) 및 순환부히터(78)를 작동시킨다. 따라서, 터브(14)에서 배출된 습한 공기는 제1순환덕트(60)를 유동하며, 열교환덕트(80)를 유동하는 외부공기와 열교환하여, 응축수를 생성하며, 1차적으로 건조될 수 있다. 또한, 제1순환덕트(60)를 유동하는 공기는 팬어셈블리(100)에 의해 제2순환덕트(70) 내부를 유동하며, 순환부히터(78)에 의해 가열되고, 순환덕트배기홀(76)을 통해 터브(14) 내부로 공급될 수 있다. 상기와 같이, 터브(14) 내부의 습한 공기가 순환덕트(60, 70)를 유동하며, 건조 및 가열되어 다시 터브(14) 내부로 공급되어 터브(14) 내부가 건조될 수 있다.In the hot air circulation step (s510), the fan motor 122 and the circulation unit heater 78 are operated with the guide valve 90 closing the guide hole 90a. Accordingly, the humid air discharged from the tub 14 flows through the first circulation duct 60 and heat exchanges with external air flowing through the heat exchange duct 80 to generate condensed water and be primarily dried. In addition, the air flowing through the first circulation duct 60 flows inside the second circulation duct 70 by the fan assembly 100, is heated by the circulation unit heater 78, and the circulation duct exhaust hole 76. It may be supplied into the tub 14 through). As described above, the humid air inside the tub 14 flows through the circulation ducts 60 and 70, and is dried and heated to be supplied back into the tub 14 to dry the tub 14.
또한, 팬모터(122)에 의해 외부에서 유입된 공기는 열교환덕트(80) 내부를 유동하며, 제1순환덕트(60)를 유동하는 공기와 열교환하고, 캐비닛(12) 외부로 배출된다. 열풍순환단계(s510)에서 열교환덕트(80)를 유동하여, 외부로 배출되는 공기는 단순히 열교환만 이루어진 상태로 습한 공기가 배출되지 않는다.In addition, the air introduced from the outside by the fan motor 122 flows through the heat exchange duct 80, heat exchanges with the air flowing through the first circulation duct 60, and is discharged to the outside of the cabinet 12. In the hot air circulation step s510, the heat exchange duct 80 flows, and the air discharged to the outside does not discharge the humid air simply by heat exchange.
열풍배출단계(s530)는 가이드밸브(90)가 가이드홀(90a)을 개방한 상태로 팬모터(122) 및 순환부히터(78)을 작동시킨다. 열풍배출단계(s530)에서는 터브(14)에서 제1순환덕트(60)로 배출된 공기의 일부가 열교환덕트(80)로 유입되어, 열교환덕트(80)를 유동하는 외부에서 유입된 공기와 혼합되어, 외부로 배출될 수 있다. Hot air discharge step (s530) operates the fan motor 122 and the circulation heater 78 with the guide valve 90 open the guide hole (90a). In the hot air discharge step (s530), a part of the air discharged from the tub 14 to the first circulation duct 60 is introduced into the heat exchange duct 80, and mixed with air introduced from the outside flowing the heat exchange duct 80. Can be discharged to the outside.
다만, 열풍배출단계(s530)는 열풍순환단계(s510)가 진행되고 일정시간이 경과된 후, 진행될 수 있다. 즉, 열풍순환단계(s510)가 진행되고, 제1설정시간이 경과되었는지를 비교하는 단계(s520)를 거쳐, 제1설정시간이 도과된 상태에서, 열풍배출단계(s530)가 진행될 수 있다. However, the hot air discharge step s530 may proceed after a predetermined time has elapsed after the hot air circulation step s510 is performed. That is, the hot air circulation step s510 may be performed, and the hot air discharge step s530 may be performed in a state in which the first set time is over, after step s520 of comparing whether the first set time has elapsed.
터브(14) 내부에 형성된 과도한 습공기가 캐비닛(12) 외부로 배출되는 것은 식기세척기(10) 주위의 물품을 손상시키거나, 사용자에게 불쾌감을 제공할 수 있다. 따라서, 제1설정시간은 터브(14) 내부에 형성되는 세척실(14a)의 크기와, 팬모터(122)의 회전속도 등을 고려하여 설정될 수 있다. Excessive moist air formed inside the tub 14 to be discharged to the outside of the cabinet 12 may damage items around the dishwasher 10 or may cause discomfort to the user. Therefore, the first set time may be set in consideration of the size of the washing chamber 14a formed in the tub 14, the rotation speed of the fan motor 122, and the like.
이상에서는 본 발명의 바람직한 실시예에 대하여 도시하고 설명하였지만, 본 발명은 상술한 특정의 실시예에 한정되지 아니하며, 특허청구범위에서 청구하는 본 발명의 요지를 벗어남이 없이 당해 발명이 속하는 기술분야에서 통상의 지식을 가진 자에 의해 다양한 변형실시가 가능한 것은 물론이고, 이러한 변형실시들은 본 발명의 기술적 사상이나 전망으로부터 개별적으로 이해되어서는 안될 것이다.Although the above has been shown and described with respect to preferred embodiments of the present invention, the present invention is not limited to the above-described specific embodiments, it is intended in the technical field to which the invention belongs without departing from the spirit of the invention claimed in the claims. Various modifications can be made by those skilled in the art, and these modifications should not be individually understood from the technical spirit or the prospect of the present invention.
Claims (13)
- 외형을 형성하는 캐비닛;A cabinet forming an appearance;상기 캐비닛 내부에 배치되고, 세척대상이 배치되는 세척실을 형성하는 터브;A tub disposed inside the cabinet and forming a washing chamber in which a washing object is disposed;상기 터브와 상기 캐비닛 사이에 배치되고, 상기 캐비닛 외부에서 유입된 공기가 유동하는 열교환유로를 형성하는 열교환덕트;A heat exchange duct disposed between the tub and the cabinet and forming a heat exchange passage through which air introduced from the cabinet flows;상기 열교환덕트와 상기 캐비닛 사이에 배치되고, 상기 터브에서 배출되는 공기가 유동하는 순환유로를 형성하는 제1순환덕트;A first circulation duct disposed between the heat exchange duct and the cabinet and forming a circulation passage through which air discharged from the tub flows;상기 제1순환덕트를 유동하는 공기를 상기 터브로 공급하는 제2순환덕트;A second circulation duct for supplying air flowing through the first circulation duct to the tub;상기 제1순환덕트를 유동하는 공기를 상기 제2순환덕트로 보내고, 캐비닛 외부에서 유입된 외기를 상기 열교환유로로 보내는 팬어셈블리; 및 A fan assembly which sends air flowing through the first circulation duct to the second circulation duct and sends outside air introduced from the outside of the cabinet to the heat exchange path; And상기 열교환유로와 상기 순환유로가 연통되도록 상기 열교환덕트와 상기 제1순환덕트 사이에 형성된 가이드홀을 개폐하는 가이드밸브를 포함하는 식기세척기.And a guide valve for opening and closing a guide hole formed between the heat exchange duct and the first circulation duct so that the heat exchange passage and the circulation passage communicate with each other.
- 제 1 항에 있어서,The method of claim 1,상기 가이드밸브는 하단이 상기 순환유로와 상기 열교환유로 사이에서 회전가능하게 고정되는 식기세척기.And the guide valve has a lower end rotatably fixed between the circulation passage and the heat exchange passage.
- 제 1 항에 있어서,The method of claim 1,상기 순환유로와 상기 열교환유로를 구획하는 격벽이 형성되고, A partition wall is formed to partition the circulation passage and the heat exchange passage;상기 가이드밸브는 상단이 상기 격벽에 맞닿거나, 상기 순환유로 방향으로 회전하여, 상기 격벽에서 이격배치되는 식기세척기.The guide valve is a dishwasher, the upper end is in contact with the partition wall, or rotated in the direction of the circulation flow path, spaced apart from the partition wall.
- 제 3 항에 있어서,The method of claim 3, wherein상기 가이드밸브는 상기 순환유로 측으로 회전할 때, 상기 순환유로의 상측으로 경사지게 배치되는 식기세척기.The guide valve is dishwasher disposed to be inclined toward the upper side of the circulation passage, when rotating to the circulation passage side.
- 제 1 항에 있어서,The method of claim 1,상기 제2순환덕트 상에 배치되고, 상기 제2순환덕트를 유동하는 공기를 가열하는 순환부히터를 포함하는 식기세척기.And a circulation unit heater disposed on the second circulation duct and configured to heat air flowing through the second circulation duct.
- 제 1 항에 있어서,The method of claim 1,상기 가이드밸브의 개폐를 조절하는 제어부를 더 포함하고, Further comprising a control unit for controlling the opening and closing of the guide valve,상기 제어부는 상기 팬어셈블리가 작동되고, 제1설정시간이 경과될 때, 상기 가이드밸브를 개방하는 식기세척기.The control unit is a dishwasher to operate the fan assembly, when the first set time elapses, the guide valve to open.
- 제 1 항에 있어서, The method of claim 1,상기 열교환덕트에서 상기 제1순환덕트와 열교환된 공기를 상기 캐비닛 외부로 배출하는 배기덕트를 더 포함하고,And an exhaust duct for discharging air exchanged with the first circulation duct in the heat exchange duct to the outside of the cabinet.상기 배기덕트는 터브의 상측에 배치되고, 상기 캐비닛의 전방으로 공기를 배출시키는 식기세척기.The exhaust duct is disposed above the tub, the dishwasher for discharging air to the front of the cabinet.
- 제 7 항에 있어서,The method of claim 7, wherein상기 배기덕트는 상기 캐비닛 전방으로 개구된 복수의 배기구를 형성하고, The exhaust duct forms a plurality of exhaust openings opened in front of the cabinet,상기 복수의 배기구는 일정간격 이격배치되는 식기세척기.The plurality of exhaust ports are dishwasher spaced at a predetermined interval.
- 제 1 항에 있어서,The method of claim 1,상기 터브의 상부면에는, 상기 세척실과 상기 제1순환덕트를 연통시키는 순환덕트유입홀이 형성되는 식기세척기.The upper surface of the tub, dishwasher is formed with a circulation duct inlet hole for communicating the washing chamber and the first circulation duct.
- 제 9 항에 있어서,The method of claim 9,상기 팬어셈블리는 상기 터브 하측에 배치되어, 상기 순환덕트유입홀로 유입된 공기를 하측방향으로 유동시키는 식기세척기.The fan assembly is disposed below the tub, the dishwasher for flowing the air introduced into the circulation duct inlet downwards.
- 제 9 항에 있어서,The method of claim 9,상기 터브의 측면에는, 상기 세척실과 상기 제2순환덕트를 연통시키는 순환덕트배기홀이 형성되는 식기세척기.The side of the tub, dishwasher is formed with a circulation duct exhaust hole for communicating the washing chamber and the second circulation duct.
- 터브 내부에 형성된 세척실로 세척수를 분사하여 상기 세척실에 거치된 세척대상을 세척하는 단계;Spraying the washing water into the washing chamber formed inside the tub to wash the washing target placed in the washing chamber;외부공기를 상기 터브의 일측에 배치된 열교환덕트 내부에 형성된 열교환유로로 유동시켜 캐비닛 외부로 배기하고, 상기 세척실 내부의 공기를 상기 열교환덕트 일측에 배치된 제1순환덕트 내부에 형성된 순환유로로 유동시켜 열교환된 공기를 제2순환덕트에서 가열시켜 상기 세척실로 공급하는 열풍순환단계; 및The outside air flows to the heat exchange passage formed in the heat exchange duct disposed on one side of the tub and is exhausted to the outside of the cabinet, and the air flows in the cleaning chamber to the circulation passage formed inside the first circulation duct disposed on the side of the heat exchange duct. A hot air circulation step of supplying heat to the heat-exchanged air by a second circulation duct to the washing chamber; And상기 열교환덕트와 상기 제1순환덕트 사이에 형성된 가이드홀을 개폐하는 가이드 밸브를 개방하여, 상기 세척실 내부에서 상기 순환유로로 유동하는 공기의 일부를 상기 열교환유로로 공급하여 상기 열교환유로를 유동하는 외부공기와 혼합하여 상기 캐비닛 외부로 배기하고, 상기 세척실 내부에서 상기 순환유로로 유동하는 공기의 나머지 일부를 상기 제2순환덕트에서 가열시켜 상기 세척실로 공급하는 열풍배기단계를 포함하는 식기세척기의 제어방법.Opening a guide valve for opening and closing the guide hole formed between the heat exchange duct and the first circulation duct, to supply a portion of air flowing into the circulation passage in the washing chamber to the heat exchange passage to flow the heat exchange passage Mixing with the outside air to exhaust the outside of the cabinet, and the remaining portion of the air flowing in the circulation passage from the inside of the washing chamber is heated in the second circulation duct to supply to the washing chamber of the dishwasher comprising a Control method.
- 제 12 항에 있어서,The method of claim 12,상기 열풍순환단계가 진행되고, 제1설정시간이 도과될 때, 상기 열풍배기단계를 수행하는 식기세척기의 제어방법.And the hot air circulating step is performed, and when the first predetermined time is elapsed, the hot air exhausting step is performed.
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KR1020180093688A KR102601188B1 (en) | 2018-08-10 | 2018-08-10 | Dish Washer And Control Method thereof |
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Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08224201A (en) * | 1995-02-22 | 1996-09-03 | Sharp Corp | Tableware washer |
KR20100020788A (en) * | 2008-08-13 | 2010-02-23 | 엘지전자 주식회사 | Dish washer |
KR20130087847A (en) * | 2012-01-30 | 2013-08-07 | 한국과학기술연구원 | Dish washer with dehumidifying device |
KR20130087849A (en) * | 2012-01-30 | 2013-08-07 | 한국과학기술연구원 | Dish washer with dehumidifying device |
US20160022116A1 (en) * | 2014-07-23 | 2016-01-28 | Whirlpool Corporation | Dishwasher |
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2018
- 2018-08-10 KR KR1020180093688A patent/KR102601188B1/en active IP Right Grant
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- 2019-08-09 WO PCT/KR2019/010107 patent/WO2020032709A1/en active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08224201A (en) * | 1995-02-22 | 1996-09-03 | Sharp Corp | Tableware washer |
KR20100020788A (en) * | 2008-08-13 | 2010-02-23 | 엘지전자 주식회사 | Dish washer |
KR20130087847A (en) * | 2012-01-30 | 2013-08-07 | 한국과학기술연구원 | Dish washer with dehumidifying device |
KR20130087849A (en) * | 2012-01-30 | 2013-08-07 | 한국과학기술연구원 | Dish washer with dehumidifying device |
US20160022116A1 (en) * | 2014-07-23 | 2016-01-28 | Whirlpool Corporation | Dishwasher |
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