Home appliance

Abstract

This home appliance comprises: a main body that includes an accommodation space on the inside; an inlet duct provided to guide the flow of air containing steam from the accommodation space; a thermoelectric device including a cooling unit, which cools the flow of air guided via the inlet duct and removes at least a portion of the steam from the flow of air as condensate, and a heating unit, which heats the flow of air cooled by the cooling unit; a discharge duct that guides the flow of air heated by the heating unit into the accommodation space; a storage unit that collects the condensate removed from the flow of air by the cooling unit; and a pump that discharges the condensate collected in the storage unit from the storage unit.

Description

home appliances

[0001] The present disclosure relates to a home appliance having an improved structure.

[0002] An appliance may include a body with an internal storage space. Furthermore, the appliance may have a drying function for drying the interior of the storage space. For example, appliances with such a drying function may include a dishwasher designed to wash and dry dishes, and a clothes dryer designed to dry clothes.

[0003] Specifically, the dishwasher may include a tub forming a washing room, a sump collecting wash water in the tub, a pump pumping wash water in the sump, and a spray device spraying the pumped wash water into the tub.

[0004] A dishwasher can perform a washing cycle to wash dishes using water and detergent, a rinsing cycle to rinse dishes, and a drying cycle to remove any remaining moisture from the dishes.

[0005] One aspect of the present disclosure provides an appliance including a thermoelectric device for performing a drying process.

[0006] One aspect of the present disclosure provides an appliance including a condensate pump configured to discharge condensate formed within a duct by a cooling unit of a thermoelectric device to the outside of the duct.

[0007] The technical problems to be achieved in this document are not limited to the technical problems mentioned above, and other technical problems not mentioned can be clearly understood by a person having ordinary skill in the technical field to which the present invention belongs from the description below.

[0008] According to the present disclosure, a home appliance comprises a thermoelectric device including a main body including a receiving space inside thereof, an inlet duct provided to guide a flow of air including steam from the receiving space, a cooling unit provided to cool the flow of air guided through the inlet duct and remove at least a portion of the steam from the flow of air as condensate, and a heating unit provided to heat the flow of air cooled by the cooling unit, an exhaust duct provided to guide the flow of air heated by the heating unit to the receiving space, a storage unit provided to collect condensate removed from the flow of air by the cooling unit, and a pump provided to discharge the condensate collected in the storage unit from the storage unit.

[0009] A home appliance according to the invention comprises a washing room, a duct for introducing air into the washing room or for discharging air into the washing room, a thermoelectric device disposed inside the duct, the thermoelectric device including a cooling unit for cooling air introduced into the duct and a heating unit for heating air passing through the cooling unit, and a condensate pump for discharging condensate generated inside the duct by the cooling unit to the outside of the duct.

[0010] FIG. 1 is a perspective view of a dishwasher according to one embodiment.

[0011] Figure 2 is a side cross-sectional view of a dishwasher according to one embodiment.

[0012] FIG. 3 is a perspective view illustrating a tub and its surroundings according to one embodiment.

[0013] FIG. 4 is a perspective view illustrating a tub and its surroundings according to one embodiment.

[0014] FIG. 5 is a perspective view illustrating a water tank, a connecting duct, and a peripheral configuration according to one embodiment.

[0015] Figure 6 is an exploded perspective view of the water tank, connecting duct, and surrounding configuration shown in Figure 5.

[0016] Figure 7 is a cross-sectional view of a dishwasher according to one embodiment.

[0017] FIG. 8 is a side view illustrating a water tank, a connecting duct, and a peripheral configuration according to one embodiment, and illustrating the internal structure of the water tank.

[0018] Fig. 9 is a cross-sectional perspective view illustrating the internal configuration of a connecting duct according to one embodiment.

[0019] Fig. 10 is a cross-sectional side view illustrating the internal configuration of a connecting duct according to one embodiment.

[0020] FIG. 11 is a perspective view illustrating a storage unit and peripheral configuration according to one embodiment.

[0021] Fig. 12 is a cross-sectional perspective view illustrating the internal configuration of a connecting duct according to one embodiment.

[0022] Fig. 13 is a side cross-sectional view illustrating the internal configuration of a connecting duct according to one embodiment.

[0023] Fig. 14 is a control block diagram of a dishwasher according to one embodiment.

[0024] Fig. 15 is a flowchart illustrating a control method of a dishwasher according to one embodiment.

[0025] Fig. 16 is a flowchart illustrating a method for controlling a drying process according to one embodiment.

[0026] Fig. 17 is a flowchart illustrating a control method of a dishwasher according to one embodiment.

[0027] Fig. 18 is a flowchart showing a method for controlling a drying process according to one embodiment.

[0028] Fig. 19 is a flowchart illustrating a method for controlling a condensate pump according to one embodiment.

[0029] FIG. 20 is a side cross-sectional view of a clothes dryer according to one embodiment.

[0030] It should be understood that the various embodiments of the present disclosure and the terminology used therein are not intended to limit the technical features described in the present disclosure to specific embodiments, but rather to encompass various modifications, equivalents, or alternatives of the embodiments.

[0031] In connection with the description of the drawings, similar reference numerals may be used for similar or related components.

[0032] The singular form of a noun corresponding to an item may include one or more of said items, unless the relevant context clearly indicates otherwise.

[0033] In this document, each of the phrases "A or B", "at least one of A and B", "at least one of A or B", "A, B, or C", "at least one of A, B, and C", and "at least one of A, B, or C" may include any one of the items listed together in that phrase, or all possible combinations thereof.

[0034] The term “and / or” includes any combination of a plurality of related described elements or any one of a plurality of related described elements.

[0035] Terms such as "first," "second," or "first" or "second" may be used simply to distinguish one component from another and do not qualify the components in any other respect (e.g., importance or order).

[0036] When a component (e.g., a first component) is referred to as being "coupled" or "connected" to another component (e.g., a second component), with or without the terms "functionally" or "communicatively," it means that the component can be connected to the other component directly (e.g., wired), wirelessly, or through a third component.

[0037] The terms “include” or “have” are intended to specify the presence of a feature, number, step, operation, component, part or combination thereof described in this document, but do not preclude the presence or addition of one or more other features, numbers, steps, operations, components, parts or combinations thereof.

[0038] When a component is said to be “connected,” “coupled,” “supported,” or “in contact with” another component, this includes not only cases where the components are directly connected, coupled, supported, or in contact, but also cases where the components are indirectly connected, coupled, supported, or in contact through a third component.

[0039] When we say that a component is "on" another component, this includes not only cases where the component is in contact with the other component, but also cases where there is another component between the two components.

[0040] The terms "part," "module," and "member" may be implemented in hardware or software. Depending on the embodiments, multiple "parts," "modules," or "members" may be implemented as a single component, or a single "part," "module," or "member" may include multiple components.

[0041] Terms such as "~bu", "~gi", "~block", "~absence", and "~module" may refer to a unit that processes at least one function or operation. For example, the terms may refer to at least one piece of hardware such as an FPGA (field-programmable gate array) / ASIC (application specific integrated circuit), at least one piece of software stored in memory, or at least one process processed by a processor.

[0042] The symbols attached to each step are used to identify each step and do not indicate the order of the steps, and the steps may be performed in a different order than stated unless the context clearly indicates a specific order.

[0043] The terms "front", "back", "left", "right", "upper", "lower", etc. used in the following description are defined based on the drawing, but the shape and position of each component are not limited by the above terms. For example, the front side can be defined as the +X side, and the rear side can be defined as the -X side. For example, based on the drawing, the right side can be defined as the +Y side, and the left side can be defined as the -Y side. For example, based on the drawing, the upper side can be defined as the +Z side, and the lower side can be defined as the -Z side.

[0044] Hereinafter, embodiments according to the present invention will be described in detail with reference to the attached drawings.

[0045] The present disclosure relates to a home appliance (1). The home appliance (1) according to the present disclosure may include a dishwasher, a clothes dryer, and the like. An example (1a) of a dishwasher may be described with reference to FIGS. 1 to 19 . An example (1b) of a clothes dryer may be described with reference to FIG. 20 . However, the present disclosure is not limited thereto. For example, any home appliance having a storage space formed inside a main body and having a function of drying the storage space may be included in the home appliance (1) according to the present disclosure.

[0046] Fig. 1 is a perspective view of a dishwasher according to one embodiment. Fig. 2 is a side cross-sectional view of the dishwasher according to one embodiment.

[0047] Referring to FIGS. 1 and 2, the dishwasher (1a) may include a main body (10). The main body (10) may form the exterior of the dishwasher (1a).

[0048] The dishwasher (1a) may include a tub (12) provided inside the main body (10). The tub (12) may be provided in a roughly box shape.

[0049] One side of the tub (12) may be open. In other words, the tub (12) may have an opening (12a). The opening (12a) may be formed at the front of the tub (12).

[0050] The dishwasher (1a) may include a receiving space (C) formed by a tub (12). The receiving space (C) may be defined as an inner space of the tub (12). That is, the receiving space (C) may be formed on the inner side of the main body (10).

[0051] The receiving space (C) of the dishwasher (1a) may be referred to as a washing room (C). The washing room (C) may refer to a space where dishes placed in a storage container are washed and dried.

[0052] The dishwasher (1a) may include a door (11) provided to open and close the opening (12a) of the tub (12). The door (11) may be installed on the main body (10) to open and close the opening (12a) of the tub (12). The door (11) may be detachably mounted on the main body (10). The door (11) may be rotatably mounted on the main body (10). For example, the door (11) may be rotatably coupled to the main body (10) via a hinge (15).

[0053] For example, the upper part of the door (11) may be provided to be rotatable relative to the tub (12) with the lower part of the door (11) as the center. The lower part of the door (11) may be rotatably fixed to the main body (10). When the door (11) opens the opening (12a) of the tub (12), it may be opened from the upper side of the opening (12a). For example, during the drying process, as illustrated in FIG. 2, the door (11) may be provided to open the opening (12a) of the tub (12) to a predetermined range.

[0054] The dishwasher (1a) may include a storage container provided inside the tub (12) to store dishes.

[0055] The storage container may include a plurality of baskets (51, 52, 53). The plurality of baskets (51, 52, 53) may be configured to store various dishes. However, the present invention is not limited thereto, and the storage container may include a single basket.

[0056] The storage container may include an intermediate basket (52) positioned in the middle in the height direction (Z direction) of the dishwasher (1a). The intermediate basket (52) may be introduced into or withdrawn from the washing room (C) through the opening (12a) of the tub (12). The intermediate basket (52) may be provided to be supported by an intermediate guide rack (13b). For example, the intermediate basket (52) may be provided to be slidably moved by the intermediate guide rack (13b). For example, the intermediate guide rack (13b) may be installed on the inner surface of the tub (12).

[0057] The storage container may include a lower basket (51) positioned at the bottom in the height direction (Z direction) of the dishwasher (1a). The lower basket (51) may be introduced into or withdrawn from the washing room (C) through the opening (12a) of the tub (12). The lower basket (51) may be provided to be supported by a lower guide rack (13a). For example, the lower basket (51) may be provided to be slidably moved by the lower guide rack (13a). For example, the lower guide rack (13a) may be installed on the inner surface of the tub (12).

[0058] A plurality of baskets (51, 52) can store relatively large dishes. However, the types of dishes stored in the plurality of baskets (51, 52) are not limited to relatively large dishes. That is, the plurality of baskets (51, 52) can store not only relatively large dishes but also relatively small dishes.

[0059] The storage container may include an upper basket (53) positioned at the upper portion in the height direction (Z direction) of the dishwasher (1a). The upper basket (53) is formed in the form of a rack assembly and can store relatively small-volume dishes. For example, cooking tools or cutlery such as ladles, knives, and spatulas can be stored in the upper basket (53). Small cups such as espresso cups can be stored in the upper basket (53). However, the types of dishes stored in the upper basket (53) are not limited to the above examples.

[0060] The upper basket (53) can be introduced into or withdrawn from the washing room (C) through the opening (12a) of the tub (12). The upper basket (53) can be provided to be supported by an upper guide rack (13c). For example, the upper basket (53) can be provided to be slidably moved by the upper guide rack (13c). For example, the upper guide rack (13c) can be installed on the inner surface of the tub (12).

[0061] The dishwasher (1a) may include a spray device (40) configured to spray washing water. The spray device (40) may spray washing water into a washing chamber (C). The spray device (40) may spray washing water toward dishes stored in a storage container. The spray device (40) may receive washing water from a sump assembly (70) to be described later.

[0062] The injection device (40) may include at least one injection unit. For example, the injection device (40) may include a plurality of injection units (41, 42, 43).

[0063] For example, the spray device (40) may include a first spray unit (41) disposed at the bottom of the lower basket (51) in the height direction (Z direction) of the dishwasher (1a). The spray device (40) may include a second spray unit (42) disposed at the bottom of the middle basket (52) in the height direction (Z direction) of the dishwasher (1a). The spray device (40) may include a third spray unit (43) disposed at the top of the upper basket (53) in the height direction (Z direction) of the dishwasher (1a). However, the present invention is not limited thereto, and the spray device may include two or fewer or four or more spray units.

[0064] Each of the plurality of spray units (41, 42, 43) may be arranged to spray the washing water while rotating. That is, each of the first spray unit (41), the second spray unit (42), and the third spray unit (43) may be arranged to spray the washing water while rotating. The plurality of spray units (41, 42, 43) may be referred to as a plurality of spray rotors (41, 42, 43). The first spray unit (41), the second spray unit (42), and the third spray unit (43) may be referred to as a first spray rotor (41), a second spray rotor (42), and a third spray rotor (43), respectively.

[0065] However, the spray device (40) may spray the washing water in a different manner from the above-described example. For example, the first spray unit (41), unlike the second spray unit (42) and the third spray unit (43), may be fixed to one side of the lower surface (12d) of the tub (12). At this time, the first spray unit (41) is arranged to spray the washing water in a substantially horizontal direction by means of a fixed nozzle, and the washing water sprayed in a substantially horizontal direction from the nozzle of the first spray unit (41) may have its direction changed by a switching assembly (not shown) disposed inside the washing chamber (C) and may move upward. The switching assembly may be installed on a rail (not shown) and may be arranged to be translationally movable along the rail. Meanwhile, although the first spray unit (41) has been described as an example, the second spray unit (42) and the third spray unit (43) may also be arranged to spray the washing water by means of a fixed nozzle, similar to the above-described example.

[0066] The dishwasher (1a) may include an auxiliary spray device (30). The auxiliary spray device (30) may be disposed on a lower side of the washing chamber (C) and spray washing water onto a portion of the washing chamber (C). The auxiliary spray device (30) is designed to spray water at a relatively high pressure compared to the spray device (40), thereby enabling intensive washing of heavily soiled dishes. The auxiliary spray device (30) may be arranged to spray washing water while rotating. The auxiliary spray device (30) may be referred to as an auxiliary spray unit (30). In addition, the auxiliary spray device (30) may be referred to as an auxiliary spray rotor (30).

[0067] The auxiliary injection device (30) may be provided as a component of the injection device (40). Hereinafter, the plurality of injection units may be a concept including at least two of the first injection unit (41), the second injection unit (42), the third injection unit (43), or the auxiliary injection unit (30). Hereinafter, the plurality of injection rotors may be a concept including at least two of the first injection rotor (41), the second injection rotor (42), the third injection rotor (43), or the auxiliary injection rotor (30).

[0068] The dishwasher (1a) may optionally be equipped with an auxiliary spray device (30). That is, the auxiliary spray device (30) may be omitted from the dishwasher (1a).

[0069] The dishwasher (1a) may include a sump assembly (70). The sump assembly (70) may be referred to as a sump (70).

[0070] The sump assembly (70) may be provided to accommodate washing water. The sump assembly (70) may collect washing water from the washing room (C). For example, to ensure smooth collection of water in the sump assembly (70), the lower surface (12d) of the tub (12) may be provided to slope downward toward the sump assembly (70). Washing water from the washing room (C) may flow along the slope of the lower surface (12d) of the tub (12) and smoothly flow into the sump assembly (70).

[0071] The dishwasher (1a) may include a circulation pump (71) that pumps wash water stored in the sump assembly (70) to the spray device (40). The circulation pump (71) may be provided as a component of the sump assembly (70). The circulation pump (71) may be placed in the machine room (L).

[0072] The dishwasher (1a) may include a drain pump (72) for draining wash water and / or foreign substances (e.g., food waste, etc.) remaining in the sump assembly (70). The drain pump (72) may be provided as a component of the sump assembly (70). The drain pump (72) may be placed in the machine room (L).

[0073] The sump assembly (70) may be arranged to supply wash water to at least one of the plurality of spray units (41, 42, 43, 30). The sump assembly (70) may be arranged to selectively supply wash water to the plurality of spray units (41, 42, 43, 30).

[0074] The dishwasher (1a) may include a pipe (14). The pipe (14) may be arranged to guide wash water from a sump assembly (70) to a spray device (40). The pipe (14) may include a shape extending approximately in the height direction (Z direction).

[0075] The dishwasher (1a) may include a machine room (L), which is a space provided below the tub (12). The machine room (L) may be a place where a configuration for circulating wash water is arranged. The dishwasher (1a) may include a base frame (20) forming the machine room (L).

[0076] At least a portion of the sump assembly (70) may be placed in the machine room (L). For example, most of the sump assembly (70) may be placed in the machine room (L). That is, the area of ​​the sump assembly (70) located in the washing room (C) may be smaller than the area of ​​the sump assembly (70) located in the machine room (L). By reducing the area of ​​the sump assembly (70) occupying the washing room (C), the area of ​​the washing room (C) can be secured. Thereby, the capacity of the washing room (C) can be increased, and the dish storage capacity can be improved.

[0077] The dishwasher (1a) may include a filter (60). The filter (60) may be provided to filter foreign substances contained in wash water flowing into the sump assembly (70). Wash water filtered by the filter (60) may be delivered to the spray device (40) by the sump assembly (70). The filter (60) may be detachably mounted to the sump assembly (70). For example, the filter (60) may include at least one of a fine filter, a coarse filter, or a micro filter.

[0078] FIG. 3 is a perspective view illustrating a tub and its surroundings according to one embodiment. FIG. 4 is a perspective view illustrating a tub and its surroundings according to one embodiment. FIG. 5 is a perspective view illustrating a water tank, a connecting duct, and its surroundings according to one embodiment. FIG. 6 is an exploded perspective view of the water tank, the connecting duct, and its surroundings illustrated in FIG. 5. FIG. 7 is a cross-sectional view of a dishwasher according to one embodiment.

[0079] Referring to FIGS. 3 and 7, the dishwasher (1a) may include a water tank (100). The water tank (100) may be provided to store water to be supplied to the washing room (C).

[0080] The water tank (100) may be placed on one side of the tub (12). Specifically, the water tank (100) may be placed between one side wall (12b) of the tub (12) and one side wall (10a) of the main body (10).

[0081] The water tank (100) can be formed by combining a first tank case (101) and a second tank case (102). For example, the first tank case (101) and the second tank case (102) can be heat-fused. By combining the first tank case (101) and the second tank case (102), a storage space (110), an inlet duct (150), and an outlet duct (160), which will be described later, can be formed.

[0082] The dishwasher (1a) may include a duct (150, 160, 400). The duct (150, 160, 400) may be connected to a washing room (C). The duct (150, 160, 400) may be configured to allow air within the washing room (C) to be introduced or to discharge air to the washing room (C).

[0083] The ducts (150, 160, 400) may include an inlet duct (150) for air discharged from the washing room (C) to flow, an exhaust duct (160) for discharging air to the washing room (C), and a connecting duct (400) connecting the inlet duct (150) and the exhaust duct (160).

[0084] The inlet duct (150) and the discharge duct (160) may each be provided inside the water tank (100). That is, the inlet duct (150) and the discharge duct (160) may each be arranged between one side wall (12b) of the tub (12) and one side wall (10a) of the main body (10).

[0085] The water tank (100) may include a first air inlet (151) formed at one end of an inlet duct (150). The first air inlet (151) may connect the washing room (C) and the inlet duct (150). Air within the washing room (C) may be introduced into the inlet duct (150) through the first air inlet (151).

[0086] The dishwasher (1a) may include a first fan device (300) configured to form an air flow. The first fan device (300) may be positioned corresponding to the first air inlet (151). The first fan device (300) may form an air flow to introduce air within the washing room (C) into the duct (150, 160, 400) or to discharge air within the duct (150, 160, 400) into the washing room (C).

[0087] The water tank (100) may include a first air outlet (161) formed at one end of the discharge duct (160). The first air outlet (161) may connect the washing room (C) and the discharge duct (160). Air within the discharge duct (160) may be discharged to the washing room (C) through the first air outlet (161).

[0088] A connecting duct (400) may be provided at the lower side of the water tank (100). The connecting duct (400) may be placed in the machine room (L).

[0089] The connecting duct (400) can be connected to the water tank (100). Through this configuration, the connecting duct (400) can connect the inlet duct (150) and the discharge duct (160). A flow path can be formed inside the connecting duct (400) through which air drawn in from the inlet duct (150) flows toward the discharge duct (160).

[0090] The connecting duct (400) may include a duct body (410), a first cover (420) coupled to one side of the duct body (410), and a second cover (430) coupled to the other side of the duct body (410). For example, the first cover (420) may be coupled to the lower side of the duct body (410), and the second cover (430) may be coupled to the upper side of the duct body (410).

[0091] The dishwasher (1a) may include a thermoelectric device (500). The thermoelectric device (500) may be arranged to cool or heat the air within the duct (150, 160, 400).

[0092] The thermoelectric device (500) can be placed inside the connecting duct (400). That is, the thermoelectric device (500) can be provided inside the machine room (L). The thermoelectric device (500) can cool or heat the air inside the connecting duct (400).

[0093] Since the thermoelectric device (500) may include a thermoelectric element (510), a sealing member (520), a cooling unit (530), and a heating unit (540) to be described later, the space in which the thermoelectric device (500) is placed needs to be relatively wide. If the thermoelectric device (500) is placed in a narrow space, the assembly of the dishwasher (1a) may be reduced, and the efficiency of the thermoelectric device (500) may also be reduced.

[0094] According to the concept of the present disclosure, the machine room (L) in which the connecting duct (400) is arranged can form a relatively wide receiving space. Furthermore, a relatively wide space can also be provided within the connecting duct (400) in which the thermoelectric device (500) is arranged. In other words, sufficient space can be formed within the connecting duct (400) in which the thermoelectric device (500) can be arranged.

[0095] That is, by placing the connecting duct (400), which is a part of the duct (150, 160, 400), in the machine room (L) and placing the thermoelectric device (500) inside the connecting duct (400), both the assembly of the dishwasher (1a) and the efficiency of the thermoelectric device (500) can be improved.

[0096] The thermoelectric device (500) may include a thermoelectric element (510). The thermoelectric element (510) may be a semiconductor element that converts thermal energy into electrical energy using the thermoelectric effect. The thermoelectric element (510) may also be referred to as a thermoelectric semiconductor element, a Peltier element, or the like. The thermoelectric element (510) may have a thin hexahedral shape.

[0097] The thermoelectric element (510) can be mounted on the duct body (410). Specifically, the duct body (410) can be provided with an open thermoelectric element insertion portion (411), and the thermoelectric element (510) can be mounted on the duct body (410) by being inserted into the thermoelectric element insertion portion (411).

[0098] The thermoelectric element (510) may include a heat-absorbing surface (511) and a heat-generating surface (512). When current is applied to the thermoelectric element (510), heat absorption may occur on the heat-absorbing surface (511), and heat generation may occur on the heat-generating surface (512). The heat-absorbing surface (511) may be provided on one surface of the thermoelectric element (510), and the heat-generating surface (512) may be provided on the other surface of the thermoelectric element (510). For example, the heat-absorbing surface (511) may be provided on the lower surface of the thermoelectric element (510), and the heat-generating surface (512) may be provided on the upper surface of the thermoelectric element (510).

[0099] The thermoelectric device (500) may include a sealing member (520). The sealing member (520) may seal the outer surface of the thermoelectric element (510). In other words, the sealing member (520) may seal the space between the thermoelectric element (510) and the duct body (410). Through this configuration, the sealing member (520) may block moisture or the like that may flow in from the outside of the thermoelectric element (510).

[0100] The thermoelectric device (500) may include a cooling unit (530) that is in contact with the heat-absorbing surface (511) of the thermoelectric element (510). The cooling unit (530) may be provided inside the connecting duct (400). The cooling unit (530) may be provided to cool the air within the connecting duct (400). Specifically, the cooling unit (530) may absorb heat from the air within the connecting duct (400) and transfer the absorbed heat to the thermoelectric element (510). As the cooling unit (530) cools the air within the connecting duct (400), condensation may occur in the cooling unit (530).

[0101] Condensate generated in the cooling unit (530) can be collected within the connecting duct (400). Specifically, the condensate generated in the cooling unit (530) can be collected in the storage unit (440) of the connecting duct (400). This will be described in detail later.

[0102] The cooling unit (530) may be provided on one side of the thermoelectric element (510). For example, the cooling unit (530) may be provided on the lower side of the thermoelectric element (510). That is, the cooling unit (530) may be placed between the duct body (410) and the first cover (420).

[0103] The thermoelectric device (500) may include a heating unit (540) that is in contact with the heating surface (512) of the thermoelectric element (510). The heating unit (540) may be provided inside the connecting duct (400). The heating unit (540) may be provided to heat the air within the connecting duct (400). Specifically, the heating unit (540) may receive heat from the thermoelectric element (510) and release the received heat to the air within the connecting duct (400).

[0104] The heating unit (540) may be provided on the other side of the thermoelectric element (510). For example, the heating unit (540) may be provided on the upper side of the thermoelectric element (510). That is, the heating unit (540) may be placed between the duct body (410) and the second cover (430).

[0105] The dishwasher (1a) may include a condensate pump (600). The condensate pump (600) may be provided to discharge condensate generated inside the connection duct (400) by the cooling unit (530) to the outside of the connection duct (400).

[0106] Since the connecting duct (400) is placed in the machine room (L) provided at the bottom of the dishwasher (1a), it may be structurally difficult to discharge the condensate outside the connecting duct (400) using only the condensate's own weight. In addition, if a path through which the condensate can flow is formed between the connecting duct (400) and another component provided at a relatively high position, there is a possibility that water may flow back into the connecting duct (400) from the other component.

[0107] According to the concept of the present disclosure, since the dishwasher (1a) includes a condensate pump (600), condensate within the connection duct (400) can be easily discharged to the outside of the connection duct (400). In addition, the condensate pump (600) can prevent water from flowing back into the connection duct (400) by causing condensate to flow in only one direction on a flow path formed between the connection duct (400) and another component.

[0108] The dishwasher (1a) may include a first connecting hose (710) connecting a condensate pump (600) and a connecting duct (400). As the condensate pump (600) operates, condensate in the connecting duct (400) may flow to the condensate pump (600) through the first connecting hose (710).

[0109] The dishwasher (1a) may include a second connecting hose (720) connecting the condensate pump (600) and the water tank (100). Condensate pumped by the condensate pump (600) may flow to the water tank (100) through the second connecting hose (720). This will be described in detail later.

[0110] The dishwasher (1a) may include a blower (800). The blower (800) may be configured to force air flow within the washing chamber (C). The blower (800) may form an air current within the washing chamber (C). The blower (800) may cause forced convection within the washing chamber (C).

[0111] The blower (800) may be placed on the other side of the tub (12). That is, the blower (800) may be placed on the opposite side of the water tank (100). For example, the blower (800) may be placed on the left side (-Y direction) of the tub (12), and the water tank (100) may be placed on the right side (+Y direction) of the tub (12). However, the positions where the blower (800) and the water tank (100) are placed are not limited thereto.

[0112] The air inside the washing room (C) can actively flow due to the air current formed by the blower device (800) and the air current formed by the first fan device (300) and the ducts (150, 160, 400). Accordingly, the drying efficiency of the dishwasher (1a) can be increased.

[0113] The blower device (800) may include a blower duct (810). The blower duct (810) may be in communication with the washing room (C). The blower duct (810) may be provided to allow air within the washing room (C) to be introduced or to discharge air to the washing room (C).

[0114] The blower (800) may include a second air inlet (not shown), a second air outlet (821), and a third air outlet (822). Air drawn into the blower duct (810) through the second air inlet (not shown) may pass through the blower duct (810) and be discharged through the second air outlet (821) and the third air outlet (822). By providing two air outlets (821, 822), the air within the washing room (C) may flow more actively.

[0115] The blower device (800) may include a second fan device (not shown). The second fan device (not shown) may create an air flow to draw air within the washing room (C) into the blower duct (810).

[0116] The dishwasher (1a) may include a first inlet cover (910). The first inlet cover (910) may cover the first air inlet (151) on the inside of the tub (12). The first inlet cover (910) may be coupled to the first air inlet (151). The first inlet cover (910) may primarily prevent foreign substances within the washing room (C) from entering the duct (150, 160, 400).

[0117] The dishwasher (1a) may include a second inlet cover (920). The second inlet cover (920) may cover a second air inlet (not shown) on the inside of the tub (12). The second inlet cover (920) may be coupled to the second air inlet (not shown). The second inlet cover (920) may primarily prevent foreign substances within the washing room (C) from entering the air duct (810).

[0118] FIG. 8 is a side view illustrating a water tank, a connecting duct, and a peripheral configuration according to one embodiment, and illustrates the internal structure of the water tank. FIG. 9 is a cross-sectional perspective view illustrating the internal configuration of a connecting duct according to one embodiment. FIG. 10 is a side cross-sectional view illustrating the internal configuration of a connecting duct according to one embodiment.

[0119] Referring to FIGS. 7 to 10, the water tank (100) may include a storage space (110) for storing water. The storage space (110) may be formed inside the water tank (100).

[0120] A plurality of guide ribs (111) may be formed in the storage space (110). The plurality of guide ribs (111) may guide water flowing into the storage space (110) to flow uniformly in various directions. Accordingly, the pressure applied to the water tank (100) by the water may be formed at a constant level, thereby preventing the water tank (100) from becoming full.

[0121] The water stored in the storage space (110) may be softened through a softening device (not shown) installed inside or outside the water tank (100). In addition, water softened through the softening device (not shown) may be introduced into the storage space (110) and stored therein. Water softened through the softening device (not shown) may be referred to as wash water.

[0122] As described above, the water tank (100) can be placed on one side of the tub (12). Through this configuration, water stored in the storage space (110) can receive heat transfer from the washing room (C).

[0123] The water supplied to the storage space (110) from an external water source (not shown) can be provided at a relatively low temperature. After being supplied to the storage space (110), the water receives heat from the washing room (C), thereby achieving a temperature similar to that of the washing room (C). Accordingly, the amount of energy required to heat the water stored in the storage space (110) to a predetermined temperature for the washing process can be reduced.

[0124] The water tank (100) may include a water level control channel (121) and a water level control opening (122). The water level control channel (121) and the water level control opening (122) may be formed inside the storage space (110). When a certain amount of water exceeding a certain level flows into the storage space (110), the excess water may flow into the water level control channel (121) and be discharged into the washing room (C) through the water level control opening (122). Accordingly, an appropriate amount of water may always be stored inside the water tank (100).

[0125] The water tank (100) may include a water tank hole (130) provided to allow water to flow in from an external water source (not shown) or to discharge water to a sump assembly (70, see FIG. 3). The water tank hole (130) may be provided at the lower end of the water tank (100).

[0126] The water tank (100) may include an inlet channel (140) connected to a water tank hole (130). Water flowing into the water tank (100) through the water tank hole (130) may pass through the inlet channel (140) and be discharged into the storage space (110).

[0127] The dishwasher (1a) may include a valve (200). The valve (200) may be configured to open or close a drain hole (112) provided at the lower end of the storage space (110). For example, the valve (200) may be provided as a solenoid valve.

[0128] Specifically, when the valve (200) opens the drain hole (112), water stored in the storage space (110) can be discharged to the sump assembly (70, see FIG. 3) through the water tank hole (130). In addition, when the valve (200) closes the drain hole (112), water supplied from an external water source (not shown) can flow into the storage space (110) through the water tank hole (130) and the water intake channel (140).

[0129] As described above, the inlet duct (150) and the discharge duct (160) may each be provided inside the water tank (100). Specifically, the inlet duct (150) and the discharge duct (160) may each be provided on one side of the storage space (110). However, the inlet duct (150) and the discharge duct (160) do not necessarily have to be provided inside the water tank (100). For example, the inlet duct (150) and the discharge duct (160) may be provided separately from the water tank (100) outside the water tank (100).

[0130] As described above, the connecting duct (400) can be coupled to the water tank (100) at the lower side of the water tank (100). In addition, the connecting duct (400) can include a duct body (410), a first cover (420) coupled to one side of the duct body (410), and a second cover (430) coupled to the other side of the duct body (410).

[0131] The first connecting duct joint (419) of the duct body (410) is connected to the inlet duct joint (152) formed at the other end of the inlet duct (150), so that the connecting duct (400) and the inlet duct (150) can be connected. Accordingly, air introduced into the inlet duct (150) from the washing room (C) can flow into the connecting duct (400).

[0132] The second connecting duct joint (439) of the second cover (430) is connected to the exhaust duct joint (162) formed at the other end of the exhaust duct (160), so that the connecting duct (400) and the exhaust duct (160) can be connected. Accordingly, the air in the connecting duct (400) can be discharged to the washing room (C) through the exhaust duct (160).

[0133] A first flow path (P1) can be formed by combining a duct body (410) and a first cover (420). A second flow path (P2) can be formed by combining a duct body (410) and a second cover (430). For example, the first flow path (P1) and the second flow path (P2) can each extend in the left-right direction (Y direction).

[0134] The first flow path (P1) may be formed on the upstream side of the second flow path (P1). That is, air flowing into the connection duct (400) from the inlet duct (150) may sequentially pass through the space between the duct body (410) and the first cover (420) and the space between the duct body (410) and the second cover (430) and flow into the exhaust duct (160).

[0135] According to the concept of the present disclosure, air introduced into the inlet duct (150) from the washing room (C) can flow into the connecting duct (400) and then be discharged back into the washing room (C) via the discharge duct (160). That is, the ducts (150, 160, 400) can form a circulation path together with the washing room (C).

[0136] As described above, the cooling unit (530) may be placed between the duct body (410) and the first cover (420). That is, the cooling unit (530) may be placed on the first flow path (P1) formed between the duct body (410) and the first cover (420). Through this configuration, the cooling unit (530) may cool the air introduced into the connection duct (400) through the inlet duct (150).

[0137] Air passing through the first flow path (P1) can be cooled by the cooling unit (530). Accordingly, the first flow path (P1) can be referred to as a cooling flow path (P1).

[0138] As described above, the heating unit (540) can be placed between the duct body (410) and the second cover (430). That is, the heating unit (540) can be placed on the second flow path (P2) formed between the duct body (410) and the second cover (430). Since the second flow path (P2) is formed on the downstream side of the first flow path (P1), the heating unit (540) can heat the air that has passed through the first flow path (P1).

[0139] Air passing through the second passage (P2) can be heated by the heating unit (540). Accordingly, the second passage (P2) can be referred to as a heating passage (P2).

[0140] According to the concept of the present disclosure, the cooling unit (530) may be provided upstream of the heating unit (540) based on the flow direction of air flowing into the connecting duct (400). Accordingly, the air flowing into the connecting duct (400) may be cooled by the cooling unit (530), and the air cooled by passing through the cooling unit (530) may be heated again by the heating unit (540).

[0141] The air flowing into the connecting duct (400) may be high-temperature, high-humidity air because it is air flowing in from the washing room (C) through the inlet duct (150). The cooling unit (530) can cool the high-temperature, high-humidity air to generate condensate and simultaneously form low-temperature, low-humidity air. The heating unit (540) can heat the air cooled by the cooling unit (530) to form high-temperature, low-humidity air. The high-temperature, low-humidity air that passes through the heating unit (540) can be discharged into the washing room (C) through the discharge duct (160). The air discharged into the washing room (C) can absorb moisture in the washing room (C) and become high-temperature, high-humidity air again. The high-temperature, high-humidity air can be again introduced into the connecting duct (400) through the inlet duct (150).

[0142] That is, the high temperature and high humidity air in the washing room (C) can become high temperature and low humidity air by passing through the duct (150, 160, 400), and the high temperature and low humidity air can again become high temperature and high humidity air by absorbing moisture in the washing room (C). In addition, the air in the washing room (C) can repeatedly go through the process described above while flowing along the circulation path formed by the washing room (C) and the duct (150, 160, 400). Accordingly, moisture in the washing room (C) can be gradually removed.

[0143] Additionally, hot air can have a higher saturation water vapor content than cold air. That is, hot air can contain a greater amount of water vapor than cold air. Therefore, a greater amount of moisture can be removed when hot, low-humidity air is discharged into the cleaning chamber (C) than when cold, low-humidity air is discharged into the cleaning chamber (C).

[0144] According to the concept of the present disclosure, the exhaust duct (160) can discharge high temperature and low humidity air into the washing room (C) through the cooling unit (530) and the heating unit (540). This configuration can increase the drying efficiency of the dishwasher (1a).

[0145] The cooling unit (530) may include a cooling plate (531). One surface of the cooling plate (531) may be in contact with the heat absorption surface (511) of the thermoelectric element (510). The cross-section of the cooling plate (531) may be wider than the heat absorption surface (511) of the thermoelectric element (510). Through this configuration, the cooling efficiency of the thermoelectric device (500) may be increased.

[0146] The cooling unit (530) may include a plurality of cooling fins (532). Each of the plurality of cooling fins (532) may protrude from the other surface of the cooling plate (531).

[0147] A plurality of cooling fins (532) may extend along the direction in which the first flow path (P1) extends. The plurality of cooling fins (532) may be arranged in a direction intersecting the direction in which the first flow path (P1) extends. For example, the plurality of cooling fins (532) may extend in the left-right direction (Y direction) and may be arranged in the front-back direction (X direction). Through this configuration, the area cooled by the cooling unit (530) may be expanded. In other words, the cooling efficiency of the thermoelectric device (500) may be increased.

[0148] As the high temperature and high humidity air flowing along the first passage (P1) passes through the plurality of cooling fins (532), the air can be cooled, and condensate can be formed on the plurality of cooling fins (532). The condensate formed on the plurality of cooling fins (532) can fall down due to its own weight.

[0149] The cross-section of each of the plurality of cooling fins (532) (specifically, the cross-section on the YZ plane) may be rectangular. However, the cross-section of each of the plurality of cooling fins (532) is not limited thereto. For example, each of the plurality of cooling fins (532) may have a trapezoidal cross-section with an inclined lower portion. In this case, the condensate formed on each of the plurality of cooling fins (532) may flow along the lower portion of each of the plurality of cooling fins (532) and may be collected at the lower portion of each of the plurality of cooling fins (532) corresponding to the vertex of the trapezoid, and thus the condensate may more easily fall off from the plurality of cooling fins (532).

[0150] The heating unit (540) may include a heating plate (541). One surface of the heating plate (541) may be in contact with the heating surface (512) of the thermoelectric element (510). The cross-section of the heating plate (541) may be wider than the heating surface (512) of the thermoelectric element (510). Through this configuration, the heating efficiency of the thermoelectric device (500) may be increased.

[0151] The heating unit (540) may include a plurality of heating fins (542). Each of the plurality of heating fins (542) may protrude from the other surface of the heating plate (541).

[0152] A plurality of heating fins (542) may extend along the direction in which the second flow path (P2) extends. The plurality of heating fins (542) may be arranged in a direction intersecting the direction in which the second flow path (P2) extends. Through this configuration, the area heated by the heating unit (540) may be expanded. In other words, the heating efficiency of the thermoelectric device (500) may be increased.

[0153] FIG. 11 is a perspective view illustrating a storage unit and peripheral configuration according to one embodiment.

[0154] Referring to FIGS. 7 to 11, the connecting duct (400) may include a storage unit (440). The storage unit (440) may be provided to collect condensate generated in the cooling unit (530).

[0155] The storage unit (440) may be sunken into the bottom surface (400a) of the connection duct (400) provided below the thermoelectric device (500). Specifically, the storage unit (440) may be provided below the cooling unit (530). Through this configuration, condensate generated in the cooling unit (530) can be collected more effectively.

[0156] The connecting duct (400) may include a discharge hole (450). The discharge hole (450) may be provided to discharge condensate collected in the storage unit (440).

[0157] A discharge hole (450) may be provided at the lower end of the storage unit (440). The bottom surface (440a) of the storage unit (440) may be inclined to guide the condensate collected in the storage unit (440) to the discharge hole (450). Through this configuration, the condensate collected in the storage unit (440) may flow to the discharge hole (450) by its own weight.

[0158] The connecting duct (400) may include a plurality of protruding ribs (460). Each of the plurality of protruding ribs (460) may protrude from the bottom surface (440a) of the storage unit (440). Each of the plurality of protruding ribs (460) may be provided to guide condensate collected in the storage unit (440) to a discharge hole (450).

[0159] A first connection hose (710) may be connected to the discharge hole (450). That is, the first connection hose (710) may connect the condensate pump (600) and the discharge hole (450). Accordingly, the condensate collected in the storage unit (440) may flow to the condensate pump (600) through the first connection hose (710).

[0160] The condensate pump (600) may be provided to discharge the condensate collected in the storage unit (440) from the storage unit (440). Specifically, the condensate pump (600) may discharge the condensate collected in the storage unit (440) to the washing room (C). That is, the condensate pump (600) may pump the condensate collected in the storage unit (440) and discharge the pumped condensate to the washing room (C). Hereinafter, the configurations for discharging the condensate to the washing room (C) will be described.

[0161] The water tank (100) may include an inlet hole (170). The inlet hole (170) may be provided to allow condensate pumped by a condensate pump (600) to flow in.

[0162] A second connecting hose (720) can be connected to the inlet hole (170). That is, the second connecting hose (720) can connect the condensate pump (600) and the inlet hole (170).

[0163] The water tank (100) may include a discharge channel (180). An inlet hole (170) may be provided at one end of the discharge channel (180). Accordingly, condensate may be introduced into the discharge channel (180) through the inlet hole (170).

[0164] The discharge channel (180) may be formed by being separated from the storage space (110), the inlet duct (150), and the discharge duct (160). For example, the discharge channel (180) may be formed between the storage space (110) and the discharge duct (160).

[0165] A connecting hole (181) may be provided at the other end of the exhaust channel (180). The other end of the exhaust channel (180) may be connected to an air exhaust port (161) through the connecting hole (181). That is, the exhaust channel (180) may connect the inlet hole (170) and the air exhaust port (161).

[0166] As described above, the air outlet (161) can be connected to the washing room (C). Accordingly, the discharge channel (180) can form a path through which the condensate introduced through the inlet hole (170) flows into the washing room (C). The condensate flowing into the air outlet (161) can be discharged into the washing room (C).

[0167] That is, the condensate collected in the storage unit (440) can be discharged to the washing room (C) by the condensate pump (600). The condensate discharged to the washing room (C) can be collected in the sump assembly (70, see FIG. 3) provided at the bottom of the washing room (C).

[0168] Although this document only describes an embodiment in which condensate is discharged to a washing room (C), the present disclosure is not limited thereto. For example, condensate may be discharged into a storage space (110) of a water tank (100) via a condensate pump (600). Through this configuration, the total amount of water supplied to the storage space (110) from an external water source (not shown) can be reduced.

[0169] Fig. 12 is a cross-sectional perspective view illustrating the internal configuration of a connecting duct according to one embodiment. Fig. 13 is a side cross-sectional view illustrating the internal configuration of a connecting duct according to one embodiment.

[0170] Hereinafter, a connection duct (400') and a thermoelectric device (500') according to one embodiment of the present disclosure will be described with reference to FIGS. 12 and 13. In describing the connection duct (400') and the thermoelectric device (500'), components that are substantially the same as those illustrated in FIGS. 1 to 11 are assigned the same reference numerals, and a detailed description thereof may be omitted.

[0171] Referring to FIGS. 12 and 13, a flow path may be formed inside the connecting duct (400') through which air introduced from the inlet duct (150) flows toward the exhaust duct (160). Specifically, a third flow path (P3) provided relatively upstream and a fourth flow path (P4) provided relatively downstream may be formed inside the connecting duct (400'). That is, air introduced into the connecting duct (400') through the inlet duct (150) may sequentially pass through the third flow path (P3) and the fourth flow path (P4) and then be exhausted through the exhaust duct (160). Each of the third flow path (P3) and the fourth flow path (P4) may extend approximately in the vertical direction (Z direction).

[0172] A thermoelectric device (500') may be placed inside the connecting duct (400'). The thermoelectric device (500') may include a thermoelectric element (510'), a cooling unit (530'), and a heating unit (540'). The cooling unit (530') may be provided on one side of the thermoelectric element (510'), and the heating unit (540') may be provided on the other side of the thermoelectric element (510'). For example, the cooling unit (530') may be placed on the right side (+Y direction) of the thermoelectric element (510'), and the heating unit (540') may be placed on the left side (-Y direction) of the thermoelectric element (510').

[0173] The cooling unit (530') can be placed on the third flow path (P3). Through this configuration, the cooling unit (530') can cool the air flowing into the connection duct (400') through the inlet duct (150).

[0174] Air passing through the third passage (P3) can be cooled by the cooling unit (530'). Accordingly, the third passage (P3) can be referred to as a cooling passage (P3).

[0175] The heating unit (540') can be placed on the fourth passage (P4). Since the fourth passage (P4) is formed on the downstream side of the third passage (P3), the heating unit (540') can heat the air that has passed through the fourth passage (P4).

[0176] Air passing through the fourth passage (P4) can be heated by the heating unit (540'). Accordingly, the fourth passage (P4) can be referred to as a heating passage (P4).

[0177] The cooling unit (530') may include a plurality of cooling fins (532'). Each of the plurality of cooling fins (532') may extend along the direction in which the third flow path (P3) extends. The plurality of cooling fins (532') may be arranged in a direction intersecting the direction in which the third flow path (P3) extends. For example, the plurality of cooling fins (532') may extend in the vertical direction (Z direction) and may be arranged in the front-back direction (X direction). Through this configuration, the area cooled by the cooling unit (530') may be expanded. In other words, the cooling efficiency of the thermoelectric device (500') may be increased.

[0178] As the high temperature and high humidity air flowing along the third passage (P3) passes through the plurality of cooling fins (532'), the air can be cooled, and condensation can occur on the plurality of cooling fins (532'). The condensation occurring on the plurality of cooling fins (532') can fall down due to its own weight.

[0179] In addition, since the high temperature and high humidity air flowing along the third flow path (P3) flows downward, the condensate generated on the plurality of cooling fins (532') can be relatively easily removed from the plurality of cooling fins (532') by the air. Accordingly, the condensate can be collected more effectively.

[0180] The connecting duct (400') may include a storage unit (440'). The storage unit (440') may be recessed into the bottom surface (400a') of the connecting duct (400') provided below the thermoelectric device (500'). The storage unit (440') may be provided to collect condensate falling from a plurality of cooling fins (532').

[0181] The heating unit (540') may include a plurality of heating fins (542'). The plurality of heating fins (542') may extend along the direction in which the fourth flow path (P4) extends. The plurality of heating fins (542') may be arranged in a direction intersecting the direction in which the fourth flow path (P4) extends. For example, the plurality of heating fins (542') may extend in the vertical direction (Z direction) and may be arranged in the front-back direction (X direction). Through this configuration, the area heated by the heating unit (540') may be expanded. In other words, the heating efficiency of the thermoelectric device (500') may be increased.

[0182] Fig. 14 is a control block diagram of a dishwasher according to one embodiment.

[0183] Referring to FIG. 14, the dishwasher (1a) may include a control unit (1100), a user interface (1200), a communication unit (1300), and a temperature sensor (1400).

[0184] The control unit (1100) can be electrically connected to various components of the dishwasher (1a). The control unit (1100) can control various components of the dishwasher (1a).

[0185] The control unit (1100) may include at least one memory (1120) and at least one processor (1110) to perform the operations described above and the operations described below.

[0186] The memory (1120) may be provided to store data in the form of an algorithm and / or program for controlling the operation of components within the dishwasher (1a). The processor (1110) may be provided to perform the operations described above and the operations described below using the data stored in at least one memory (1120). The memory (1120) and the processor (1110) may each be implemented as separate chips. The processor (1110) may include one or more processor chips or one or more processing cores. The memory (1120) may include one or more memory chips or one or more memory blocks. In addition, the memory (1120) and the processor (1110) may also be implemented as a single chip.

[0187] The control unit (1100) processes user input received through the user interface (1200) and can control various components of the dishwasher (1a) based on the processed user input.

[0188] The control unit (1100) can control various components of the dishwasher (1a) to perform a cycle including a washing process (2200, 2300), a rinsing process (2400), a drying process (2500), a cooling process (2600), etc., which will be described later, according to user input entered through the user interface (1200).

[0189] The user interface (1200) can interact with the user.

[0190] The user interface (1200) can obtain user input. The user interface (1200) can display information about the dishwasher (1a). For example, the user interface (1200) can also provide visual and / or auditory feedback.

[0191] The user interface (1200) may include an input unit (1210).

[0192] The input unit (1210) can receive an operation command from a user. The input unit (1210) can provide an electrical output signal corresponding to the user input to the control unit (1100). The input unit (1210) can include various buttons and / or dials. The input unit (1210) can obtain various user inputs, such as a user input for turning the dishwasher (1a) on or off, a user input for selecting a washing course, a washing option, etc.

[0193] The user interface (1200) may include a display unit (1220).

[0194] The display unit (1220) can display information regarding the status and / or operation of the dishwasher (1a). The display unit (1220) can display information input by the user and / or information provided to the user. The display unit (1220) can display information related to the operation of the dishwasher (1a) in the form of at least one of an image or text. The display unit (1220) can receive a signal from the control unit (1100) and display information corresponding to the received signal. In addition, the display unit (1220) can display a graphical user interface (GUI) that enables control of the dishwasher (1a). That is, the display unit (1220) can display a user interface element (UI element) such as an icon.

[0195] The display unit (1220) may include various types of display panels. For example, the display may include a liquid crystal display panel (LCD panel), a light emitting diode panel (LED panel), an organic light emitting diode panel (OLED panel), or a micro LED panel. Additionally, the display may be implemented as a touch display.

[0196] A dishwasher (1a) may provide various washing cycles for washing dishes. For example, various washing cycles may be provided, such as an automatic cycle, a standard cycle, an intensive cycle, a rapid cycle, and / or a rinse-dry cycle. The number and / or types of operations included in each washing cycle may vary. Additionally, each washing cycle may include various changeable washing options (e.g., washing time, temperature, etc.). A user may select a washing cycle and change various washing options constituting the washing cycle using a user interface (1200). The dishwasher (1a) may operate according to the washing cycle and washing options set by the user input.

[0197] The communication unit (1300) can transmit data to an external device or receive data from an external device based on a control signal from the control unit (1100). For example, the communication unit (1300) can communicate with a server, a user terminal device, and / or other home appliances to transmit and receive various types of data.

[0198] The communication unit (1300) may support the establishment of a direct (e.g., wired) communication channel or a wireless communication channel between external devices (e.g., servers, user terminal devices, and / or home appliances), and the performance of communication through the established communication channel. According to one embodiment, the communication unit (1300) may include a wireless communication module (e.g., a cellular communication module, a short-range wireless communication module, or a global navigation satellite system (GNSS) communication module) or a wired communication module (e.g., a local area network (LAN) communication module, or a power line communication module). Among these communication modules, a corresponding communication module may communicate with an external electronic device through a first network (e.g., a short-range communication network such as Bluetooth, wireless fidelity (WiFi) direct, or infrared data association (IrDA)) or a second network (e.g., a long-range communication network such as a legacy cellular network, a 5G network, a next-generation communication network, the Internet, or a computer network (e.g., a LAN or WAN)). These different types of communication modules may be integrated into a single component (e.g., a single chip) or implemented as multiple separate components (e.g., multiple chips).

[0199] The communication unit (1300) can establish communication with a user terminal device through a server.

[0200] The communication unit (1300) may include a Wi-Fi module and may perform communication with an external server and / or user terminal device based on establishing communication with an access point (AP) in the home.

[0201] The sensor module (1400) can detect the environmental status of the dishwasher (1a) and generate an electric signal or data value corresponding to the detected status.

[0202] For example, the sensor module (1400) may include a wash water temperature sensor (1410) configured to detect the temperature of wash water or a condensate level sensor (1420) configured to detect the level of condensate stored in a connection duct (400). Details regarding the condensate level sensor (1420) will be described later.

[0203] The control unit (1100) can control the circulation pump (71). The control unit (1100) can start or stop the circulation pump (71). Specifically, the control unit (1100) can control the circulation pump (71) based on user input obtained through the user interface (1200) and / or an external device. The control unit (1100) can control the on / off, operating time, rotation speed, etc. of the circulation pump (71).

[0204] The control unit (1100) can control the drain pump (72). The control unit (1100) can start or stop the drain pump (72). Specifically, the control unit (1100) can control the drain pump (72) based on user input obtained through the user interface (1200) and / or an external device. The control unit (1100) can control the on / off, operating time, rotation speed, etc. of the drain pump (72).

[0205] The control unit (1100) can control the first fan device (300). The control unit (1100) can operate or stop the first fan device (300). Specifically, the control unit (1100) can control the first fan device (300) based on user input obtained through the user interface (1200) and / or an external device. The control unit (1100) can control the on / off, operating time, rotation speed, etc. of the first fan device (300).

[0206] The control unit (1100) can control the thermoelectric device (500). The control unit (1100) can turn on or turn off the thermoelectric device (500). Specifically, the control unit (1100) can control the thermoelectric device (500) based on user input obtained through the user interface (1200) and / or an external device. The control unit (1100) can control the on / off, operating time, etc. of the thermoelectric device (500).

[0207] The control unit (1100) can control the condensate pump (600). The control unit (1100) can start or stop the condensate pump (600). Specifically, the control unit (1100) can control the condensate pump (600) based on user input obtained through the user interface (1200) and / or an external device. The control unit (1100) can control the on / off, operating time, etc. of the condensate pump (600).

[0208] The control unit (1100) can control the blower device (800). The control unit (1100) can start or stop the blower device (800). Specifically, the control unit (1100) can control the blower device (800) based on user input obtained through the user interface (1200) and / or an external device. The control unit (1100) can control the on / off of the blower device (800), the operating time, the rotation speed of the second fan device (not shown), etc.

[0209] The control unit (1100) can control the washing room heater (81), washing water heater (82), and tub opening / closing device (83) to be described later.

[0210] The dishwasher (1a) may include a washing chamber heater (81). The washing chamber heater (81) may be provided to heat the washing chamber (C) to more efficiently wash dishes stored in the washing chamber (C).

[0211] The dishwasher (1a) may include a wash water heater (82). The wash water heater (82) may be provided to heat wash water to more efficiently wash dishes stored in the wash room (C). For example, the wash water heater (82) may be provided in the circulation pump (71). That is, while the circulation pump (71) is operating, the wash water heater (82) may heat water pumped by the circulation pump (71). However, the location of the wash water heater (82) is not limited thereto.

[0212] The dishwasher (1a) may include a tub opening / closing device (83). The tub opening / closing device (83) may be configured to open / close the opening (12a) of the tub (12) by rotating the door (11). For example, when the control unit (1100) performs the drying process (2500) described below, the control unit (1100) may open the opening (12a) of the tub (12) through the tub opening / closing device (83) in order to more efficiently dry the washing room (C).

[0213] The control unit (1100) can control the washing room heater (81). The control unit (1100) can turn on or off the washing room heater (81). Specifically, the control unit (1100) can control the washing room heater (81) based on user input obtained through the user interface (1200) and / or an external device. The control unit (1100) can control the on / off, operating time, heating temperature, etc. of the washing room heater (81).

[0214] The control unit (1100) can control the washing water heater (82). The control unit (1100) can start or stop the washing water heater (82). Specifically, the control unit (1100) can control the washing water heater (82) based on user input obtained through the user interface (1200) and / or an external device. The control unit (1100) can control the on / off, operating time, heating temperature, etc. of the washing water heater (82).

[0215] The control unit (1100) can control the tub opening / closing device (83). The control unit (1100) can operate or stop the tub opening / closing device (83). Specifically, the control unit (1100) can control the tub opening / closing device (83) based on user input obtained through the user interface (1200) and / or an external device. The control unit (1100) can control the on / off of the tub opening / closing device (83), the opening time of the tub (12), etc.

[0216] Fig. 15 is a flowchart illustrating a control method of a dishwasher according to one embodiment. Fig. 16 is a flowchart illustrating a control method of a drying process according to one embodiment.

[0217] Referring to FIGS. 15 and 16, a control method (2000) of a dishwasher (1a) according to one embodiment of the present disclosure will be described.

[0218] A user can select a washing course and / or washing option through an input unit (1210) of a user interface (1200), and a processor (1110) can retrieve a command or data corresponding to the user input (2100).

[0219] Washing courses may include various courses such as automatic course, standard course, strong course, glass course, rapid course, rinse-dry course or internal wash course.

[0220] Depending on the type of washing course, the washing sequence, water consumption, washing temperature, and / or washing time may vary.

[0221] For example, when an automatic course is selected, the control unit (1100) can perform an operation appropriate to the degree of dish contamination determined through the sensor module (1400).

[0222] For example, when the standard course is selected, the control unit (1100) can perform only the main washing process (2300) and the rinsing process (2400) without the preliminary washing process (2200) described later.

[0223] For example, when a strong course is selected, the control unit (1100) can perform all of the pre-washing cycle (2200), the main washing cycle (2300), and the rinsing cycle (2400).

[0224] According to the concept of the present disclosure, the operating time or heating temperature of the washing room heater (81) that heats the washing room (C) or the washing water heater (82) that heats the washing water may be different depending on the type of washing course. In other words, the washing room (C) may be heated to different temperatures depending on the type of washing course.

[0225] For example, if the Power course is selected, the washing chamber (C) can be heated to a relatively high temperature. Therefore, although power consumption may increase, dishwashing efficiency can be improved.

[0226] For example, when the automatic or standard cycle is selected, the washing chamber (C) can be heated to a relatively low temperature. Therefore, while dishwashing efficiency may be somewhat reduced, power consumption can be reduced.

[0227] Wash options may mean options to add another cycle to the selected wash course or to change some of the settings of the selected wash course.

[0228] For example, the washing options may include an option for adding a drying process to a selected washing course (hereinafter referred to as a “hot air drying option”), an option for improving drying performance by increasing the temperature of the rinse water without adding a drying process to a selected washing course (hereinafter referred to as a “drying improvement option”), etc.

[0229] For example, in a standard course, assuming that the rinse water temperature in the rinse cycle is set to 55 degrees, if an enhanced drying option is added in addition to the standard course, the rinse water temperature may be changed to 80 degrees. In addition, if an enhanced drying option is added in addition to the standard course, a cooling cycle (2600) may be added after the rinse cycle (2400).

[0230] The control unit (1100) can perform operations corresponding to the selected washing course and washing option.

[0231] In FIGS. 15 and 16, for convenience of explanation, the operations that the control unit (1100) can perform are illustrated in their entirety, but it is to be understood that some operations may be omitted or some operations may be added depending on the washing course and washing options.

[0232] First, the control unit (1100) can perform a condensate discharge operation (3000) via the condensate pump (600) (3000). Specifically, the control unit (1100) can discharge the condensate collected in the storage unit (440) from the storage unit (440) via the condensate pump (600) (3000). In other words, the control unit (1100) can discharge the condensate collected in the storage unit (440) to the outside of the connecting duct (400) via the condensate pump (600) (3000).

[0233] That is, the control unit (1100) can perform a condensate discharge operation (3000) before starting the pre-washing operation (2200), main washing operation (2300), rinsing operation (2400), drying operation (2500), and cooling operation (2600) described later.

[0234] According to the concept of the present disclosure, after a cleaning cycle is performed once, condensate generated in the cooling section (530) of the thermoelectric device (500) can be collected in the storage section (440). If the cleaning cycle is performed again without discharging the condensate collected in the storage section (440), some components of the thermoelectric device (500) may be submerged under the condensate as the condensate level rises. Since the thermoelectric device (500) includes a thermoelectric element (510) that is vulnerable to moisture, if some components of the thermoelectric device (500) are submerged under the condensate, the thermoelectric device (500) may malfunction.

[0235] According to the concept of the present disclosure, the control unit (1100) can prevent the condensate from exceeding a predetermined level because it pumps the condensate through the condensate pump (600) and then performs other operations. Accordingly, the failure of the thermoelectric device (500) can be prevented.

[0236] However, the order of the condensate discharge operation (3000) is not limited thereto. When the control unit (1100) performs the drying process (2500), since condensate is generated in the cooling unit (530) of the thermoelectric device (500), if the condensate discharge operation (3000) is performed before the control unit (1100) performs the drying process (2500), the condensate can be prevented from exceeding a predetermined level. For example, the condensate discharge operation (3000) may be performed between the preliminary washing process (2200) and the main washing process (2300), which will be described later. For example, the condensate discharge operation (3000) may be performed between the main washing process (2300) and the rinsing process (2400), which will be described later. For example, the condensate discharge operation (3000) may be performed between the rinsing process (2400) and the drying process (2500), which will be described later. For convenience of explanation, below, only an embodiment in which the condensate discharge operation (3000) is performed before the preliminary washing operation (2200) described later will be examined.

[0237] The control unit (1100) may perform a pre-washing operation (2200) after performing a condensate discharge operation (3000). The pre-washing operation (2200) is a operation to remove relatively large contaminants present on dishes by spraying washing water without detergent mixed into the washing chamber (C) before the main washing operation (2300) described below.

[0238] The control unit (1100) can perform a preliminary washing process (2200) and then perform a main washing process (2300). The main washing process (2300) is a process of heating the washing room (C) and spraying washing water into the washing room (C) to wash dishes stored in the washing room (C) using washing water.

[0239] The main washing process (2300) may include a washing water supply process that supplies washing water used for washing to a sump assembly (70), a washing water spray process that sprays washing water mixed with detergent into a washing room (C) through a spray device (40), and a washing water drain process that drains washing water stored in the sump assembly (70) and / or the spray device (40).

[0240] As described above, the washing room (C) can be heated to different temperatures depending on the type of washing course. Specifically, the control unit (1100) can perform a plurality of main washing operations (2300) that heat the washing room (C) to different temperatures, and the main washing operations (2300) performed by the control unit (1100) can vary depending on the type of washing course.

[0241] The control unit (1100) can perform a rinsing process (2400) after performing the main washing process (2300).

[0242] The rinsing cycle (2400) may include a rinsing water supply cycle that supplies rinsing water used for rinsing to the sump assembly (70), a rinsing water injection cycle that sprays rinsing water stored in the sump assembly (70) through the injection device (40), and a rinsing water drain cycle that drains rinsing water stored in the sump assembly (70) and / or the injection device (40).

[0243] The control unit (1100) can perform a drying process (2500) after performing a rinsing process (2400). The drying process (2500) is a process for drying dishes by circulating air inside the washing room (C) and supplying hot air into the washing room (C) using the first fan device (300), the thermoelectric device (500), and the blower device (800).

[0244] Below, we will look at the drying process (2500) in more detail.

[0245] First, the control unit (1100) can wait for moisture within the washing room (C) to evaporate. That is, the control unit (1100) can wait for the air within the washing room (C) to become saturated vapor. At this time, the control unit (1100) can operate the washing room heater (81) so that moisture within the washing room (C) evaporates more efficiently.

[0246] Based on the control unit (1100) having waited for a predetermined waiting time (2510), the control unit (1100) may operate the first fan device (300) and the blower device (800) to form an airflow inside the washing room (C) (2521, 2522). At this time, based on the control unit (1100) having performed the main washing process (2300) for heating the washing room (C) to a temperature lower than a predetermined reference temperature (2520), the control unit (1100) may additionally operate the thermoelectric device (500) (2521). In other words, if the control unit (1100) has performed the main washing process (2300) for heating the washing room (C) to a temperature higher than a predetermined reference temperature (2520), the control unit (1100) may not operate the thermoelectric device (500) (2522).

[0247] The thermoelectric element (510) of the thermoelectric device (500) has a heat-absorbing surface (511) and a heat-generating surface (512), and the temperature of each of the heat-absorbing surface (511) and the heat-generating surface (512) can be changed according to the temperature around the thermoelectric element (510). For example, when the temperature around the thermoelectric element (510) is 40 degrees, the heat-absorbing surface (511) can have a temperature lower than 40 degrees, and the heat-generating surface (512) can have a temperature higher than 40 degrees.

[0248] Due to the characteristics of the thermoelectric element (510) as described above, if the temperature around the thermoelectric element (510) becomes excessively high, the temperature of the heating surface (512) may rise even higher. This may lead to overheating of the thermoelectric element (510) and may cause the thermoelectric element (510) to malfunction.

[0249] Accordingly, when the control unit (1100) performs the main washing process (2300) that heats the washing room (C) to a temperature exceeding a set reference temperature, if the control unit (1100) operates the thermoelectric device (500), the ambient temperature of the thermoelectric element (510) may become excessively high, causing the thermoelectric element (510) to malfunction.

[0250] According to the idea of ​​the present disclosure, based on the control unit (1100) performing the main washing process (2300) of heating the washing room (C) to a temperature below a set reference temperature (2520), the control unit (1100) can prevent a failure of the thermoelectric element (510) by operating the thermoelectric device (500) (2521).

[0251] Below, we first examine the case (2520) in which the control unit (1100) performs the main washing process (2300) of heating the washing room (C) below a set reference temperature.

[0252] When the control unit (1100) performs the main washing process (2300) of heating the washing room (C) to a temperature below a predetermined reference temperature (2520), the control unit (1100) can operate the first fan device (300), the thermoelectric device (500), and the blower device (800) (2521). Accordingly, an air current is formed inside the washing room (C), and as the air inside the washing room (C) repeatedly passes through the cooling unit (530) and the heating unit (540) of the thermoelectric device (500), moisture inside the washing room (C) can be gradually removed.

[0253] After the control unit (1100) operates the first fan device (300), the thermoelectric device (500), and the blower device (800), when a predetermined operating time has elapsed (2531), the control unit (1100) can stop the operation of the first fan device (300) and the thermoelectric device (500) (2541).

[0254] After the operation of the first fan device (300), the thermoelectric device (500), and the blower device (800) is stopped, the control unit (1100) can open the tub (12) by rotating the door (11) via the tub opening / closing device (83) (2551). The blower device (800) can form an air current so that air can flow between the inside and outside of the washing room (C). Accordingly, moisture within the washing room (C) can be removed more efficiently.

[0255] After the control unit (1100) opens the tub (12) through the tub opening / closing device (83), and based on the elapse of a predetermined opening time (2561), the control unit (1100) can rotate the door (11) through the tub opening / closing device (83) to close the tub (12) again (2571). Accordingly, the drying process (2500) can be terminated.

[0256] Below, we will look at a case (2520) where the control unit (1100) performs the main washing process (2300) that heats the washing room (C) to exceed a set reference temperature.

[0257] When the control unit (1100) performs the main washing process (2300) that heats the washing room (C) to exceed a set reference temperature (2520), the control unit (1100) operates the first fan device (300) and the blower device (800) and opens the tub (12) through the tub opening / closing device (83), thereby forming an air current so that air can flow between the inside and outside of the washing room (C) (2522).

[0258] At this time, the control unit (1100) may not operate the thermoelectric device (500). That is, when the control unit (1100) performs the main washing process (2300) that heats the washing room (C) to exceed a set reference temperature (2520), moisture in the washing room (C) can be removed only by the air current formed by the first fan device (300) and the blower device (800).

[0259] The control unit (1100) operates the first fan device (300) and the blower device (800) and opens the tub (12) through the tub opening / closing device (83). Then, based on the elapse of a predetermined operating and opening time (2532), the control unit (1100) stops the operation of the first fan device (300) and the blower device (800) and closes the tub (12) again through the tub opening / closing device (83) (2542). Accordingly, the drying process (2500) can be terminated.

[0260] The dishwasher (1a) can perform a cooling process (2600) after performing a drying process (2500). The cooling process (2600) is a process for preventing safety accidents by lowering the temperature inside the washing room (C), and can be performed by a first fan device (300) and a blower device (800). The cooling process (2600) can also be defined as a part of the drying process (2500).

[0261] Fig. 17 is a flowchart illustrating a control method of a dishwasher according to one embodiment. Fig. 18 is a flowchart illustrating a control method of a drying process according to one embodiment.

[0262] Hereinafter, with reference to FIGS. 17 and 18, another control method (2000') of a dishwasher (1a) according to one embodiment of the present disclosure will be described. In describing another control method (2000') of a dishwasher (1a), the same reference numerals are assigned to components or operations substantially identical to those illustrated in FIG. 15, and a detailed description thereof may be omitted.

[0263] Unlike the control method (2000) of the dishwasher (1a) described with reference to FIGS. 15 and 16 in which the condensate discharge operation (3000) is performed before the pre-washing process (2200), in another control method (2000') of the dishwasher (1a), the condensate discharge operation (3000) may be included within the drying process (2500').

[0264] Specifically, based on the control unit (1100) performing the main washing process (2300) of heating the washing room (C) to a temperature lower than a set reference temperature (2520), the control unit (1100) may operate the thermoelectric device (500) and perform the condensate discharge operation (3000). In other words, if the control unit (1100) performs the main washing process (2300) of heating the washing room (C) to a temperature higher than a set reference temperature (2520), the control unit (1100) may not operate the thermoelectric device (500) and may not perform the condensate discharge operation (3000).

[0265] According to the concept of the present disclosure, when the control unit (1100) performs the main washing process (2300) for heating the washing room (C) to exceed a predetermined reference temperature (2520), the control unit (1100) may operate the first fan device (300) and the blower device (800) and open the tub (12) through the tub opening / closing device (83). At this time, the control unit (1100) may not operate the thermoelectric device (500). Accordingly, condensation may not occur within the duct (150, 160, 400). That is, even if the condensation pump (600) does not operate, problems such as a breakdown of the thermoelectric element (510) due to the condensation level may not occur.

[0266] According to the idea of ​​the present disclosure, when the control unit (1100) does not operate the thermoelectric device (500), the power consumption required to operate the condensate pump (600) can be reduced by omitting the condensate discharge operation (3000).

[0267] Additionally, when the condensate pump (600) operates even though no condensate is stored in the storage unit (440), noise may be generated as the condensate pump (600) sucks in air.

[0268] According to the idea of ​​the present disclosure, when the control unit (1100) does not operate the thermoelectric device (500), noise that may be generated by the condensate pump (600) can be prevented by omitting the condensate discharge operation (3000).

[0269] Fig. 19 is a flowchart illustrating a method for controlling a condensate pump according to one embodiment.

[0270] Referring to Fig. 19, a method for controlling a condensate discharge operation (3000) through a condensate pump (600) is described.

[0271] The dishwasher (1a) may include a condensate level sensor (1420). The condensate level sensor (1420) may be provided to detect the level of condensate collected in the storage unit (440).

[0272] The condensate level sensor (1420) can detect when the condensate reaches a set reference level and send a signal to the control unit (1100). Since the storage unit (440) is formed by being sunken in the bottom surface (400a) of the connection duct (400), the reference level can be located at the same height as or lower than the bottom surface (400a) of the connection duct (400).

[0273] Based on whether the level of condensate stored in the connecting duct (400) has reached the reference level (3100), the control unit (1100) can operate the condensate pump (600) (3200).

[0274] As described above, since the thermoelectric device (500) includes a thermoelectric element (510) that is vulnerable to moisture, if some components of the thermoelectric device (500) are submerged under condensation, the thermoelectric device (500) may malfunction.

[0275] According to the concept of the present disclosure, the reference water level may be located at the same height as or below the bottom surface (400a) of the connecting duct (400), and the cooling unit (530) of the thermoelectric device (500) may be provided above the bottom surface (400a) of the connecting duct (400). That is, before the condensate collected in the storage unit (440) comes into contact with the cooling unit (530) due to the rising level of the condensate, the condensate level sensor (1420) can detect the condensate level, and the control unit (110) can operate the condensate pump (600). Therefore, it is possible to prevent the thermoelectric device (500) from being damaged by the condensate.

[0276] If the level of condensate stored in the connecting duct (400) does not reach a predetermined reference level, the control unit (1100) may not operate the condensate pump (600). That is, the control unit (1100) may not discharge the condensate outside the connecting duct (400).

[0277] According to the idea of ​​the present disclosure, power consumption due to the operation of the condensate pump (600) can be reduced by operating the condensate pump (600) only when the level of the condensate stored in the connecting duct (400) reaches a predetermined reference level (3100).

[0278] After the control unit (1100) operates the condensate pump (600), the control unit (1100) can stop the operation of the condensate pump (600) (3400) based on the elapsed time of a predetermined condensate pumping time (3300). By the control unit (1100) stopping the operation of the condensate pump (600), the condensate discharge operation (3000) can be terminated.

[0279] In the above, an embodiment in which the control unit (1100) performs the condensate discharge operation (3000) only when a specific process is completed or under specific conditions has been described. However, according to another embodiment of the present disclosure, the control unit (1100) may continuously perform the condensate discharge operation (3000) by continuously driving the condensate pump (600). Alternatively, regardless of the order of the processes performed by the control unit (1100), the condensate discharge operation (3000) may be performed in response to the level of the condensate stored in the connection duct (400) reaching a predetermined reference level.

[0280] In the above, an embodiment of operating the condensate pump (600) based on the level of the condensate stored in the connection duct (400) reaching a predetermined reference level (3100) has been described. However, according to another embodiment of the present disclosure, the condensate level sensor (1420) may be omitted, and the condensate pump (600) may be operated without detecting the level of the condensate.

[0281] FIG. 20 is a side cross-sectional view of a clothes dryer according to one embodiment.

[0282] Hereinafter, a clothes dryer (1b) according to one embodiment of the present disclosure will be described with reference to FIG. 20. In describing the clothes dryer (1b), components that are substantially the same as those illustrated in FIGS. 1 to 19 are assigned the same reference numerals, and a detailed description thereof may be omitted.

[0283] Referring to FIG. 20, the clothes dryer (1b) may include a cabinet (4100) forming an exterior. The cabinet (4100) may also be referred to as a main body (4100).

[0284] The clothes dryer (1b) may include a drum (4200) that is rotatably installed within a cabinet (4100). The drum (4200) may be provided to be rotatably provided by receiving power from a driving device (4400).

[0285] The clothes dryer (1b) may include a receiving space (C'') formed by a drum (4200). The receiving space (C'') may be defined as an inner space of the drum (4200). That is, the drying space (C'') may be formed on the inner side of the cabinet (4100).

[0286] The receiving space (C'') of the clothes dryer (1b) may be referred to as a clothes processing room (C''). The clothes processing room (C'') may mean a space where clothes are received and dried.

[0287] An inlet (4110) may be provided on the front of the cabinet (4100) for loading or unloading clothes (not shown) as a drying object into or from the clothes processing room (C''). The clothes dryer (1b) may include a door (4300) provided to open and close the inlet (4110).

[0288] The clothes dryer (1b) may include a duct (150'', 160'', 400''). The duct (150'', 160'', 400'') may be connected to a clothes treatment room (C''). The duct (150'', 160'', 400'') may be arranged to allow air within the clothes treatment room (C'') to be introduced or to discharge air to the clothes treatment room (C'').

[0289] The ducts (150'', 160'', 400'') may include an inlet duct (150'') for air to flow from the clothing treatment room (C''), an exhaust duct (160'') for exhausting air to the clothing treatment room (C''), and a connecting duct (400'') for connecting the inlet duct (150'') and the exhaust duct (160'').

[0290] The clothes dryer (1b) may include a fan device (300'') configured to form an air flow. The fan device (300'') may form an air flow to introduce air within the clothes treatment room (C'') into the duct (150'', 160'', 400'') or to discharge air within the duct (150'', 160'', 400'') into the clothes treatment room (C'').

[0291] The clothes dryer (1b) may include a thermoelectric device (500''). The thermoelectric device (500'') may be arranged to cool or heat the air within the duct (150'', 160'', 400'').

[0292] According to the concept of the present disclosure, the clothes dryer (1b) may include a thermoelectric device (500'') instead of a heat pump. Accordingly, components such as a compressor, condenser, expander, and evaporator may be omitted.

[0293] The thermoelectric device (500'') can be placed inside the duct (150'', 160'', 400''). Specifically, the thermoelectric device (500'') can be placed inside the connecting duct (400'').

[0294] A thermoelectric device (500'') may include a thermoelectric element (510''), a cooling unit (530'') configured to cool air introduced through an inlet duct (150''), and a heating unit (540'') configured to heat air that has passed through the cooling unit (530'').

[0295] Based on the direction of air flow into the duct (150'', 160'', 400''), the cooling unit (530'') may be provided upstream of the heating unit (540''). Through this configuration, air flowing into the duct (150'', 160'', 400'') from the clothing treatment room (C'') can be cooled by the cooling unit (530''), and the air cooled by passing through the cooling unit (530'') can be reheated by the heating unit (540'') and then discharged into the clothing treatment room (C''). In this process, the high temperature and high humidity air in the clothing treatment room (C'') can become high temperature and low humidity air, and condensation may occur in the cooling unit (530'').

[0296] The connecting duct (400'') may include a storage unit (440''). The storage unit (440'') may be provided to collect condensate generated in the cooling unit (530'').

[0297] The clothes dryer (1b) may include a condensate pump (600''). The condensate pump (600'') may be provided to discharge condensate generated inside the connection duct (400'') by the cooling unit (530'') to the outside of the connection duct (400''). Specifically, the condensate pump (600'') may be provided to discharge condensate collected in the storage unit (440'') from the storage unit (440''). For example, the condensate pump (600'') may discharge condensate to the outside of the clothes dryer (1b).

[0298] The clothes dryer (1b) may include a first connection hose (710'') connecting the condensate pump (600'') and the connection duct (400''), and a second connection hose (720'') connecting the condensate pump (600'') and the external space of the clothes dryer (1b). Through this configuration, the condensate collected in the storage unit (440'') may flow to the condensate pump (600'') through the first connection hose (710''), and then be discharged to the outside of the clothes dryer (1b) through the second connection hose (720'').

[0299] According to one embodiment, a home appliance (1) includes a body (10) including a receiving space (C) on the inside, an inlet duct (150) provided to guide a flow of air including steam from the receiving space (C), a cooling unit (530) provided to cool a flow of air guided through the inlet duct (150) and remove at least a portion of the steam from the flow of air as condensate, and a thermoelectric device (500) including a heating unit (540) provided to heat a flow of air cooled by the cooling unit (530), an exhaust duct (160) provided to guide a flow of air heated by the heating unit (540) to the receiving space (C), a storage unit (440) provided to collect condensate removed from the flow of air by the cooling unit (530), and a pump (600) provided to discharge condensate collected in the storage unit (440) from the storage unit (440).

[0300] The above home appliance (1) may further include a connecting duct (400) connecting the inlet duct (150) and the outlet duct (160). The thermoelectric device (500) may be placed inside the connecting duct (400).

[0301] The above storage unit (440) is sunken into the bottom surface (440a) of the above connection duct (400) and can be provided below the above thermoelectric device (500).

[0302] The above-mentioned connecting duct (400) further includes a discharge hole (450) through which condensate collected in the storage unit (440) is discharged, and the home appliance (1) may further include a connecting hose (710) connecting the pump (600) and the discharge hole (450).

[0303] The above discharge hole (450) may be at the low point of the storage unit (440). The bottom surface (440a) of the storage unit (440) may be inclined upward from the low point so as to guide the condensate collected in the storage unit (440) to the discharge hole (450) by the bottom surface (440a).

[0304] The above pump (600) may be provided to discharge the condensate collected in the storage unit (440) into the receiving space (C).

[0305] The above home appliance (1) may further include a water tank (100) forming a storage space (110) for storing water to be supplied to the receiving space (C). The inlet duct (150) and the outlet duct (160) may be located inside the water tank (100).

[0306] The water tank (100) may include an inlet hole (170), an air outlet (161) provided to connect the receiving space (C) and the discharge duct (160), and a discharge channel (180) connecting the inlet hole (170) and the air outlet (161). The inlet hole (170), the air outlet (161), and the discharge channel (180) may be provided such that condensate discharged from the storage unit (440) by the pump (600) flows into the discharge channel (180) through the inlet hole (170), flows along the discharge channel (180), and is discharged into the receiving space (C) through the air outlet (161). The home appliance (1) may further include a connection hose (720) connecting the pump (600) and the inlet hole (170).

[0307] The above discharge channel (180) may be between the storage space (110) and the discharge duct (160).

[0308] The thermoelectric device (500) may include a thermoelectric element (510) in which the cooling unit (530) is provided on a first side of the thermoelectric device (500) and the heating unit (540) is provided on a second side of the thermoelectric device (500) opposite to the first side. The above connecting duct (400) is a duct body (410) on which the thermoelectric element (510) is mounted, a first cover (420) coupled to a first side of the duct body (410) and provided to form a cooling path (P1) together with the duct body (410), the cooling path (P1) is a first cover (420) that passes through the cooling unit (530) so that the flow of air guided by the inlet duct (150) flows into the connecting duct (400) and is cooled by the cooling unit (530) along the cooling path (P1), and a second cover (430) coupled to a second side of the duct body (410) and provided to form a heating path (P2) together with the duct body (410), the heating path (P2) is a flow of air cooled by the cooling unit (530) along the cooling path (P1) so that the air flows into the heating It may include a second cover (430) passing through the heating unit (540) so as to be heated by the heating unit (540) along the euro (P2).

[0309] The cooling unit (530) may include a plurality of cooling fins (532) extending along the direction in which the cooling passage (P1) extends, and the heating unit (540) may include a plurality of heating fins (542) extending along the direction in which the heating passage (P2) extends.

[0310] The circulation path through which the air flow circulates may include the inlet duct (150), the discharge duct (160), the connection duct (400), and the receiving space (C).

[0311] The above home appliance (1) may further include a control unit (1100) configured to perform a condensate discharge operation (3000) in which condensate collected in the storage unit (440) through the pump (600) is discharged from the storage unit (440) before the washing process (2300) in which washing water is sprayed into the receiving space (C) begins.

[0312] The above home appliance (1) is provided to perform a plurality of washing operations (2300), and the plurality of washing operations (2300) are a plurality of washing operations (2300) in which the receiving space (C) is heated to different temperatures among a plurality of temperatures corresponding to each of the plurality of washing operations (2300), and based on the fact that a washing operation (2300) in which the receiving space (C) is heated to a predetermined reference temperature or lower among the plurality of temperatures among the plurality of washing operations (2300) is performed (2520), the thermoelectric device (500) is operated, and the control unit (1100) may further include a control unit (1100) in which the condensate collected in the storage unit (440) through the pump (600) is discharged from the storage unit (440).

[0313] The above home appliance (1) may further include a water level detection sensor (1420) configured to detect the water level of the condensate collected in the storage unit (440) and generate corresponding data, and a control unit (1100) configured to operate the pump (600) based on data generated by the water level detection sensor (1420) indicating that the water level of the condensate reaches a predetermined reference water level (3100).

[0314] According to one embodiment, a home appliance (1) includes a washing room (C), a duct (150, 160, 400) for introducing air into the washing room (C) or for discharging air to the washing room (C), a thermoelectric device (500) disposed inside the duct (150, 160, 400), the thermoelectric device (500) including a cooling unit (530) for cooling air introduced into the duct (150, 160, 400) and a heating unit (540) for heating air passing through the cooling unit (530), and a condensate pump (600) for discharging condensate generated inside the duct (150, 160, 400) by the cooling unit (530) to the outside of the duct (150, 160, 400).

[0315] The above duct (150, 160, 400) may include a storage unit (440) sunken in the bottom surface (440a) of the duct (400) provided below the thermoelectric device (500) to store condensate generated in the cooling unit (530).

[0316] The above duct (400) further includes a discharge hole (450) provided to discharge condensate collected in the storage unit (440), and the home appliance (1) may further include a connecting hose (710) connecting the condensate pump (600) and the discharge hole (450).

[0317] The above-mentioned connecting hose (710) is a first connecting hose (710), and further includes a water tank (100) provided to store water to be supplied to the washing room (C), and the water tank (100) includes an inlet hole (170) provided to allow condensate pumped by the condensate pump (600) to flow in, and a discharge channel (180) forming a path through which condensate introduced through the inlet hole (170) flows to the washing room (C), and the home appliance (1) may further include a second connecting hose (720) connecting the condensate pump (600) and the inlet hole (170).

[0318] The heating unit (540) is provided inside the duct (150, 160, 400), and the cooling unit (530) may be provided upstream of the heating unit (540) based on the flow direction of air flowing into the duct (150, 160, 400).

[0319] According to the concept of the present disclosure, a thermoelectric device of a home appliance can be placed inside a duct. The cooling unit of the thermoelectric device can cool high-temperature, high-humidity air introduced from a receiving space to generate condensate and simultaneously form low-temperature, low-humidity air, and the heating unit of the thermoelectric device can reheat the air cooled by the cooling unit to form high-temperature, low-humidity air. In other words, by removing moisture from the high-temperature, high-humidity air introduced into the duct and discharging high-temperature, low-humidity air with a relatively high saturated water vapor content back into the receiving space, the drying efficiency of the home appliance can be increased.

[0320] According to the present disclosure, a condensate pump can be configured to discharge condensate formed within a duct to the outside of the duct. This configuration can prevent the condensate level from rising, causing failure of a thermoelectric device located within the duct. Furthermore, it can prevent water from flowing back into the duct from other components.

[0321] The above illustrates and describes specific embodiments. However, the invention is not limited to the above-described embodiments, and those skilled in the art will readily appreciate that various modifications and implementations can be made without departing from the spirit and scope of the invention as set forth in the claims below.

Claims

1. A body including a receiving space inside; An inlet duct provided to guide the flow of air containing steam from the above-mentioned receiving space; A thermoelectric device comprising a cooling unit configured to cool a flow of air guided through the inlet duct and remove at least a portion of vapor from the flow of air as condensate, and a heating unit configured to heat the flow of air cooled by the cooling unit; An exhaust duct provided to guide the flow of air heated by the heating unit to the receiving space; A storage unit provided to collect condensate removed from the air flow by the cooling unit; and An appliance comprising a pump configured to discharge condensate collected in the storage unit from the storage unit.

2. In paragraph 1, Further comprising a connecting duct connecting the above inlet duct and the above outlet duct, An appliance in which the thermoelectric device is placed inside the connecting duct.

3. In paragraph 2, An appliance in which the storage unit is sunken into the bottom surface of the connecting duct and provided below the thermoelectric device.

4. In paragraph 3, The above connecting duct, It further includes a discharge hole provided to discharge condensate collected in the storage unit, The above home appliances, An appliance further comprising a connecting hose connecting the pump and the discharge hole.

5. In paragraph 4, The above discharge hole is at the bottom of the storage unit, An appliance in which the bottom surface of the storage unit is inclined upward from the low point so as to guide condensate collected in the storage unit to the discharge hole by the bottom surface.

6. In paragraph 1, The above pump is an appliance provided to discharge condensate collected in the above storage unit into the above receiving space.

7. In paragraph 1, Further comprising a water tank forming a storage space for storing water to be supplied to the above-mentioned receiving space, The above inlet duct and the above outlet duct are home appliances located inside the water tank.

8. In paragraph 7, The above water tank, Inlet hole, An air exhaust port provided to connect the above-mentioned receiving space and the above-mentioned exhaust duct; Including an exhaust channel connecting the above inlet hole and the above air exhaust port, The above inlet hole, the air outlet, and the discharge channel are provided so that the condensate discharged from the storage unit by the pump flows into the discharge channel through the inlet hole, flows along the discharge channel, and is discharged into the receiving space through the air outlet. The above home appliances, An appliance further comprising a connecting hose connecting the pump and the inlet hole.

9. In paragraph 8, The above exhaust channel is an appliance located between the storage space and the exhaust duct.

10. In paragraph 2, The above thermoelectric device, A thermoelectric element including a cooling unit provided on a first side of the thermoelectric device and a heating unit provided on a second side of the thermoelectric device opposite to the first side, The above connecting duct, A duct body in which the above thermoelectric element is mounted; A first cover coupled to the first side of the duct body and provided to form a cooling passage together with the duct body, the cooling passage being a first cover through which the flow of air guided by the inlet duct flows into the connecting duct and passes through the cooling unit so as to be cooled by the cooling unit along the cooling passage; and A home appliance comprising a second cover coupled to the second side of the duct body and arranged to form a heating path together with the duct body, the heating path passing through the heating part such that the air cooled by the cooling part flows along the cooling path and is heated by the heating part along the heating path.

11. In paragraph 10, The cooling unit includes a plurality of cooling fins extending along the direction in which the cooling channel extends, A home appliance in which the heating unit includes a plurality of heating fins extending along the direction in which the heating path extends.

12. In paragraph 2, A home appliance in which a circulation path through which air flows circulates includes the inlet duct, the outlet duct, the connection duct, and the receiving space.

13. In paragraph 1, An appliance further comprising a control unit configured to perform a condensate discharge operation in which condensate collected in the storage unit is discharged from the storage unit through the pump before a washing process in which washing water is sprayed into the receiving space is started.

14. In paragraph 1, It is arranged to perform a plurality of washing operations, wherein the plurality of washing operations are a plurality of washing operations in which the receiving space is heated to different temperatures among a plurality of temperatures corresponding to each of the plurality of washing operations, A home appliance further comprising a control unit configured to operate the thermoelectric device and perform a condensate discharge operation in which condensate collected in the storage unit is discharged from the storage unit through the pump based on the fact that a washing operation in which the receiving space is heated to a reference temperature set among the plurality of temperatures is performed among the plurality of washing operations.

15. In paragraph 3, A water level detection sensor provided to detect the water level of condensate collected in the storage unit and generate corresponding data; and An appliance further comprising a control unit configured to operate the pump based on data generated by the water level detection sensor indicating that the water level of the condensate has reached a predetermined reference water level.

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