Dishwasher

Abstract

A dishwasher comprises a tub in which dishes are accommodated. The dishwasher comprises a base disposed under the tub. The dishwasher comprises a mounting portion disposed in the base. The dishwasher comprises a condenser mounted on the mounting portion. The dishwasher comprises a water-leakage detector mounted on the mounting portion. The water-leakage detector is disposed at a position spaced apart from the condenser.

Description

CROSS-REFERENCE TO RELATED APPLICATION

[0001] This application claims priority to and benefit of Korean Patent Applications No. 10-2025-0024363 filed on February 25, 2025, 10-2025-0032609 filed on March 13, 2025, 10-2025-0042750 filed on April 2, 2025, and 10-2025-0091204 filed on July 7, 2025, which is hereby incorporated by reference as when fully set forth herein.BACKGROUNDField

[0002] The present disclosure relates to a dishwasher, and more particularly, to a dishwasher equipped with a heat pump system for heating washing water.Description of Related Art

[0003] Content described in this section merely provides background information on the present disclosure and does not constitute the prior art.

[0004] A dishwasher is an apparatus that uses detergent and washing water to wash food residues such as food scraps on dishes or cookware.

[0005] A general dishwasher comprises a tub providing a washing space, a rack provided in the tub and accommodating therein dishes, a spray arm spraying the washing water to the rack, a sump storing therein the washing water, and a pump supplying the washing water stored in the sump to the spray arm.

[0006] A temperature of the washing water used in the dishwasher may be room temperature. However, washing efficiency may be improved and a washing time may be reduced by using high-temperature washing water. Accordingly, washing or rinsing of the dishes may be performed using the high-temperature washing water in at least a portion of an operation process of the dishwasher.

[0007] A heating device for heating the washing water may be embodied as, for example, an electric heater, a heat pump system, or the like.

[0008] Since the heat pump system has higher energy efficiency compared to the electric heater, a case in which a washing water heating scheme using the heat pump system is introduced into the dishwasher is increasing recently.

[0009] The heat pump system may be provided with a condenser configured to heat the washing water by exchanging heat between a high-temperature refrigerant and relatively low-temperature washing water. The washing water may be heated to a high temperature as it passes through the condenser.

[0010] Since the washing water passes through the condenser, water leakage may occur at the condenser. When such water leakage persists, the water may drop to a lower portion of the dishwasher, which may result in the submersion of other components disposed in a lower space of the dishwasher in the water. Accordingly, the damage to the components due to the submersion may occur.

[0011] Therefore, there is a need for a structure capable of detecting whether water leakage occurs at the condenser.

[0012] In addition, the washing water constantly flows within the dishwasher, such that the water leakage may also occur in other components. Thus, a structure capable of detecting such water leakage is required.SUMMARY

[0013] A technical purpose of the present disclosure is to provide a dishwasher having a structure capable of detecting water leakage in a condenser.

[0014] Another technical purpose of the present disclosure is to provide a dishwasher having a structure capable of detecting water leakage occurring in components other than the condenser.

[0015] Purposes according to the present disclosure are not limited to the above-mentioned purpose. Other purposes and advantages according to the present disclosure that are not mentioned may be understood based on following descriptions, and may be more clearly understood based on embodiments according to the present disclosure. Further, it will be easily understood that the purposes and advantages according to the present disclosure may be realized using means shown in the claims or combinations thereof.

[0016] A dishwasher according to an embodiment may comprise a tub in which dishes are accommodated.

[0017] The dishwasher may comprise a base disposed under the tub.

[0018] The dishwasher may comprise a mounting portion disposed in the base.

[0019] The dishwasher may comprise a condenser mounted on the mounting portion.

[0020] The dishwasher may comprise a water-leakage detector mounted on the mounting portion. The water-leakage detector may be disposed at a position spaced apart from the condenser.

[0021] The condenser may be configured such that a lower end of the condenser is positioned at a higher vertical level than that of a lower end of the water-leakage detector.

[0022] The mounting portion may comprise a bottom member constituting a bottom thereof. An upper surface of the bottom member may extend in an inclined manner.

[0023] For example, the upper surface of the bottom member may have an inclination such that a vertical level of at least a portion of the upper surface thereof in an area overlapping with the condenser in an up-down direction is gradually lowered as the bottom member extends toward the water-leakage detector.

[0024] The condenser may be disposed at a position overlapping an edge of the bottom member in an up-down direction. In this regard, the upper surface of the bottom member may be configured such that a vertical level of at least a portion of the upper surface of the bottom member in the edge overlapping with the condenser in the up-down direction is gradually lowered as the bottom member extends toward the water-leakage detector.

[0025] The mounting portion may comprise a tray disposed at a position overlapping with the condenser in an up-down direction.

[0026] The condenser may be oriented such that a longitudinal direction thereof is parallel to a longitudinal direction of the tray.

[0027] The tray may be positioned such that an upper surface thereof is spaced apart from the lower end of the condenser in an up-down direction.

[0028] The tray may comprise a rib protruding toward the condenser.

[0029] A distance between the rib and the water-leakage detector may be sized to be greater than a distance between the lower end of the condenser and the water-leakage detector.

[0030] The bottom member may comprise a mounting protrusion protruding upwardly from the upper surface of the bottom member. The water-leakage detector may be mounted into the mounting protrusion.

[0031] The mounting protrusion may comprise a plurality of protrusions protruding upwardly from the upper surface of the bottom member. The plurality of protrusions may be arranged so as to surround the water-leakage detector and so as to be spaced apart from each other.

[0032] The mounting protrusion may further comprise each groove defined between adjacent ones of the plurality of protrusions. A plurality of grooves may be arranged so as to be spaced apart from each other. The groove may act as a passage through which leaked water flows into the water-leakage detector.

[0033] Each of the condenser and the tray may be disposed in a front area of the dishwasher and at a position adjacent to a door.

[0034] The dishwasher may comprise a compressor mounted on the mounting portion. The compressor may communicate with the condenser. The compressor may compress refrigerant.

[0035] The dishwasher may comprise an evaporator mounted on the mounting portion. The evaporator may communicate with the compressor. The refrigerant may evaporate while flowing through the evaporator.

[0036] The water-leakage detector may be configured such that a vertical level of a lower end of the water-leakage detector is lower than a vertical level of each of a lower end of the compressor and a lower end of the evaporator.

[0037] The dishwasher may comprise a condenser supporter disposed between the condenser and the tray. The condenser supporter may be detachably coupled to the tray.

[0038] The supporter may comprise a first part having an upper surface formed as a curved surface corresponding to or conformal to a lower surface of the condenser. The first part may contact the lower surface of the condenser.

[0039] The supporter may comprise a second part extending downward from a lower surface of the first part.

[0040] The supporter may comprise a third part connected to the second part. The third part may be formed such that a lower surface thereof has an inclination corresponding to an inclination of an upper surface of the tray. The third part may contact the upper surface of the tray.

[0041] The tray may be formed to have an inclined surface at an end thereof facing the water-leakage detector, wherein a vertical level of the inclined surface may be gradually lowered as the inclined surface extends toward the water-leakage detector.

[0042] The tray may comprise a pair of guide bars protruding upwardly from an upper surface of the tray and formed at positions spaced outwardly from both opposing sides of the lower end of the condenser, respectively. Each of the pair of guide bars may be oriented such that a longitudinal direction thereof is a direction toward the water-leakage detector.

[0043] The pair of guide bars may be arranged such that a spacing therebetween becomes narrower as each of the pair of guide bars extends toward the water-leakage detector.

[0044] In the dishwasher according to the present disclosure, the lower end of the condenser may be disposed at a position higher than that of the lower end of the water-leakage detector. Accordingly, water leaked from the condenser may smoothly flow into the water-leakage detector by gravity. Therefore, the water-leakage detector may effectively detect water leakage.

[0045] Moreover, in the dishwasher according to the present disclosure, the upper surface of the bottom member may have the inclination such that a vertical level of at least a portion of the upper surface thereof in an area overlapping with the condenser in an up-down direction is gradually lowered as the bottom member extends toward the water-leakage detector.

[0046] Due to this structure, the water leaking and falling down from the condenser may flow smoothly along the inclined portion of the upper surface of the bottom member by gravity. This may effectively prevent the water falling down from the condenser from remaining on a specific area of the upper surface of the bottom member without flowing to the water-leakage detector.

[0047] Moreover, in the dishwasher according to the present disclosure, a step formed by the bottom member and the tray may be positioned in a path through which the water falling down from the condenser flows to the water-leakage detector.

[0048] This step may be formed by an edge of the tray. The water flowing toward the water-leakage detector falls down from this step and its flow speed may further increase.

[0049] Therefore, the tray having a predetermined thickness may be disposed on the upper surface of the bottom member, such that the water falling down from the condenser onto the tray may flow more smoothly to the water-leakage detector.

[0050] The tray may be placed on the upper surface of the bottom member. The upper surface of the tray may have an inclination such that a vertical level thereof is gradually lowered as the tray extends toward the water-leakage detector.

[0051] Moreover, in the dishwasher according to the present disclosure, the rib protruding upwardly from the tray may effectively guide the water falling down from the condenser and splashing back against the tray to flow toward the water-leakage detector.

[0052] Moreover, in the dishwasher according to the present disclosure, the lower end of the water-leakage detector may be positioned at a vertical level lower than a vertical level of each of the lower end of the compressor and the lower end of the evaporator.

[0053] Accordingly, the water falling down from a position corresponding to the compressor or the evaporator and collecting on the upper surface of the bottom member may smoothly flow into the water-leakage detector by gravity. Therefore, the water-leakage detector may effectively detect water leakage.

[0054] Specific effects of the present disclosure in addition to the above-described effects will be described together while illustrating specific details for carrying out the present disclosure below.BRIEF DESCRIPTION OF DRAWINGS

[0055] FIG. 1 is a cross-sectional view of a dishwasher according to an embodiment.

[0056] FIG. 2 is a diagram for illustrating components disposed in a base in a dishwasher according to an embodiment.

[0057] FIG. 3 is a plan view showing a mounting portion and components disposed on the mounting portion according to an embodiment.

[0058] FIG. 4A is a cross-sectional view showing a portion 4-4' of FIG. 3.

[0059] FIG. 4B is a diagram for illustrating a dishwasher of an embodiment different from that shown in FIG. 4A.

[0060] FIG. 5A is a partial enlarged view showing a portion 5A of FIG. 4A.

[0061] FIG. 5B is a partial enlarged view showing a portion 5B of FIG. 4B.

[0062] FIG. 6 is a plan view showing an area of a mounting portion on which a water-leakage detector is disposed.

[0063] FIG. 7 is a perspective view showing an area of a mounting portion on which a condenser and a water-leakage detector are disposed.

[0064] FIG. 8 is a diagram for illustrating a guide bar according to an embodiment.DETAILED DESCRIPTIONS

[0065] The above-mentioned purposes, features, and advantages will be described in detail later with reference to the attached drawings, so that those skilled in the art in the technical field to which the present disclosure belongs may easily practice the technical ideas of the present disclosure. In describing the present disclosure, when it is determined that a detailed description of the publicly known technology related to the present disclosure may unnecessarily obscure the gist of the present disclosure, the detailed description thereof will be omitted. Hereinafter, a preferred embodiment according to the present disclosure will be described in detail with reference to the attached drawings. In the drawings, identical reference numerals are used to indicate identical or similar components.

[0066] Although first, second, and the like are used to describe various components, these components are not limited by such terms. Such terms are only used to distinguish one component from another component, and unless specifically stated to the contrary, a first component may also be a second component.

[0067] Throughout the present document, unless otherwise stated, each component may be singular or plural.

[0068] As used herein, singular expressions comprise plural expressions, unless the context clearly dictates otherwise. In the present application, terms such as “composed of” or “include” should not be construed as necessarily including all of various components or steps described herein, and should be interpreted as being able to not including some of the components or the steps and further including additional components or steps.

[0069] Throughout the present disclosure, "A and / or B" means A, B, or A and B, unless otherwise specified, and "C to D" means C inclusive to D inclusive unless otherwise specified.

[0070] As used herein, terms such as "upper”, “lower”, “side", etc. are used to refer to a portion, a direction, and the like of a dishwasher in a state where the dishwasher is generally installed.

[0071] FIG. 1 is a cross-sectional view of a dishwasher according to an embodiment. The dishwasher according to an embodiment may comprise a casing 11 defining an outer appearance of the dishwasher, a tub 11 in which dishes to be washed are accommodated, a door 20 provided on a front surface of the tub 11 to open and close the tub 11, and a sump 100 disposed under the tub 11 to store therein washing water.

[0072] The dishwasher may further comprise a plurality of spray arms 13, 14, and 15 provided in the tub 11 and spraying the washing water, a filter 110 provided in the sump 100 and filtering washing water sprayed from at least one of the plurality of spray arms 13, 14, and 15 and recovered to the sump 100, a washing pump 150 transferring the washing water stored in the sump 100, and a switching valve 130 controlling selective flow of the washing water transferred under the operation of the washing pump 150 to at least one of the plurality of spray arms 13, 14, and 15.

[0073] The tub 11 may be formed in a hexahedral shape with an open front surface and may have a washing chamber 12a defined therein. A communication hole through which washing water flows into the sump 100 is formed in a bottom 12b of the tub 11. In the washing chamber 12a, a plurality of racks 16 and 17 in which a washing target is accommodated is disposed. The plurality of racks 16 and 17 may comprise a lower rack 16 disposed in a lower area of the washing chamber 12a and an upper rack 17 disposed in an upper area of the washing chamber 12a. The lower rack 16 and the upper rack 17 are disposed to be spaced apart from each other in an up-down direction, and may slide in the frontward direction of the tub 11 and extend from the tub 11.

[0074] The plurality of spray arms 13, 14, and 15 are arranged in the up-down direction. The plurality of spray arms 13, 14, and 15 may comprise a lower spray arm 13 disposed at the lowermost end and spraying the washing water in an upward direction toward the lower rack 16, an upper spray arm 14 disposed on top of the lower spray arm 13 and spraying the washing water upwardly toward the upper rack 17, and a top spray arm 15 disposed at the upper end of the washing chamber 12a and on top of the upper spray arm 14 and spraying the washing water downwardly.

[0075] The plurality of spray arms 13, 14, and 15 are supplied with the washing water from the washing pump 150 through a plurality of spray arm connection flow paths 18, 19, and 21. The plurality of spray arm connection flow paths 18, 19, and 21 may comprise a lower spray arm connection flow path 18 connected to the lower spray arm 13, an upper spray arm connection flow path 19 connected to the upper spray arm 14, and a top spray arm connection flow path 21 connected to the top spray arm 15.

[0076] The lower spray arm 13, the upper spray arm 14, and the top spray arm 15 may be supplied with the washing water from the washing pump 150 through the upper spray arm connection flow path 18, the upper spray arm connection flow path 19, and the top spray arm connection flow path 21, respectively.

[0077] The sump 100 may be disposed under the bottom 12b of the tub 11 and may collect the washing water. The filter 110 may filter contaminants from the washing water flowing from the tub 11 to the sump 100.

[0078] The washing water sprayed through the plurality of spray arms 13, 14, and 15 along with the contaminants deposited on and removed from the washing target drops to the bottom 12b of the tub 11. Accordingly, the washing water containing the contaminants may be filtered while flowing through the filter 110 communicating with the bottom 12b of the tub 11 and thus the contaminants-free washing water may be stored in the sump 100.

[0079] During the washing operation, the washing water may wash the dishes accommodated in the racks 16 and 17 while circulating through the sump 100, the spray arms 13, 14, and 15, the tub 11, and the filter 110.

[0080] The washing pump 150 supplies the washing water stored in the sump 100 to at least one of the plurality of spray arms 13, 14, and 15. The washing pump 150 may comprise a washing motor that generates a rotational force, and an impeller that is rotated by the washing motor to transfer the washing water. The washing pump 150 may be connected to the switching valve 130 and a washing water supply flow path 180.

[0081] When the washing pump 150 operates, the washing water stored in the sump 100 may be introduced into the washing pump 150 through a water collection flow path 170 and then transferred to the switching valve 130 through the washing water supply flow path 180.

[0082] The switching valve 130 selectively supplies the washing water transferred under the operation of the washing pump 150 to at least one of the lower spray arm 13, the upper spray arm 14, and the top spray arm 15. The switching valve 130 may selectively connect the washing water supply flow path 180 to at least one of the plurality of spray arm connection flow paths 18, 19, and 21.

[0083] The sump 100 is connected to a water supply flow path 23 through which the washing water supplied from an external water source flows. A water supply valve 22 for controlling flow of the washing water supplied from the external water source may be provided in the water supply flow path 23. The water supply valve 22 may control supply of the washing water from the external water source to the sump 100. When the water supply valve 22 is opened, the washing water supplied from the external water source may be introduced into the sump 100 through the water supply flow path 23.

[0084] The sump 100 may be connected to a drain flow path 24 for draining the washing water to the outside out of the dishwasher. A drain pump 25 for draining the washing water in the sump 100 through the drain flow path 24 may be provided in the drain flow path 24. When the drain pump 25 operates, the washing water stored in the sump 100 may be drained to the outside out of the casing 11 through the drain flow path 24.

[0085] A heating device for heating the washing water may be provided inside the sump 100 or in the washing pump 150. The heating device may be embodied as, for example, an electric heater, a heat pump system, or the like.

[0086] In an embodiment, the washing water may be heated using the heat pump system. Hereinafter, the heat pump system will be described first.

[0087] The heat pump system refers to a system that pumps heat from a low temperature environment into a high temperature environment. In this regard, the pumping of the heat may be implemented using, for example, the compressor 500. In an embodiment, the heat pump system may be implemented using a so-called two-phase flow refrigeration cycle that increases the temperature of the refrigerant by compressing the refrigerant flowing in two phases into a gaseous state using a compressor 500.

[0088] The heat pump system for performing the two-phase flow refrigeration cycle may comprise the compressor 500, a condenser 300, an expansion device, and an evaporator 600. These components are connected to each other through pipes. While the refrigerant is flowing and circulating these components, the phase thereof and the temperature thereof change, such that the refrigerant may absorb heat from the surroundings or emit the heat to the surroundings.

[0089] The refrigerant may be introduced into the compressor 500 in a low temperature gaseous state. The refrigerant may be compressed in the compressor 500. From an outlet of the compressor 500, the refrigerant may be introduced into the condenser 300 in a super-heated gas state of the high temperature and high pressure.

[0090] The refrigerant and the washing water may flow separately in the condenser 300. The refrigerant may be introduced into the condenser 300 and exchange the heat with the washing water, and the washing water may be heated upon receiving the heat from the refrigerant.

[0091] The condenser 300 may be formed in various shapes. In addition, the condenser 300 may be provided with various flow paths through which the refrigerant and the washing water separately flow.

[0092] The refrigerant may be phase-changed from the superheated gas state to a saturated state in which liquid and gas coexist while the refrigerant is maintained at theoretically the same pressure in the condenser 300.

[0093] The refrigerant flows into the condenser 300 in the superheated state and transfers the heat to the washing water such that the temperature of the refrigerant is lowered. Then, when the refrigerant reaches the saturated state, a proportion of the liquid therein may gradually increase while the refrigerant is maintained theoretically at the same temperature. In this liquefaction process, the refrigerant emits a large amount of latent heat of liquefaction, and the washing water may be heated upon receiving the heat.

[0094] The refrigerant from the condenser 300 may be introduced into the expansion device in the saturated liquid or a super cooled liquid state. Such an expansion device may be embodied as, for example, an expansion valve or a capillary device.

[0095] The refrigerant may undergo an adiabatic expansion, i.e., an expansion in which the enthalpy is theoretically constant in the expansion device. In this expansion process, a portion of the refrigerant is vaporized, and accordingly, the pressure of the refrigerant may be lowered. As the portion of the refrigerant is vaporized to dissipate the heat of vaporization to the surroundings, the temperature of the entirety of the refrigerant may be lowered. That is, the refrigerant may be introduced into the evaporator 600 in a state of low temperature and low pressure obtained while flowing through the expansion device.

[0096] When the refrigerant is introduced into the evaporator 600, the proportion of gas in the refrigerant may gradually increase in the evaporator 600 while absorbing the heat from the relatively high temperature surroundings. In the evaporator 600, the proportion of the gas in the refrigerant may gradually increase while the refrigerant is maintained at theoretically the same pressure and the same temperature.

[0097] The refrigerant discharged from the evaporator 600 may be introduced into the compressor 500 in a state in which a small amount of liquid is present in the refrigerant or the refrigerant is slightly overheated. The refrigerant introduced into the compressor 500 may circulate through the compressor 500, the condenser 300, the expansion device, and the evaporator 600 while repeating the above-described process again.

[0098] Typically, a refrigeration apparatus uses a principle in which the refrigerant absorbs the heat in the evaporator 600. The heat pump system of an embodiment may use the heat released from the refrigerant in the condenser 300.

[0099] In the heat pump system, the heat exchange occurs between the high temperature refrigerant and the relatively low temperature washing water in the condenser 300, and thus the washing water may be heated. The high-temperature washing water heated by the condenser 300 may wash or rinse the dishes more easily than the washing water at room temperature.

[0100] In this regard, such a heat pump system does not always need to operate while the dishwasher is operating the washing or rinsing process. For example, when the washing or rinsing is performed using the washing water at the room temperature, the compressor 500 does not operate, so that the water at the room temperature may be sprayed to the dishes without heating the washing water.

[0101] Even when the compressor 500 is stopped and the washing water is not heated, the washing water may flow through the condenser 300 and circulate throughout the dishwasher.

[0102] In another embodiment, a bypass flow path bypassing the condenser 300 may be defined. Thus, when the compressor 500 is stopped, the washing water may flow along the bypass flow path to bypass the condenser, thereby improving the performance of the condenser 300 and extending its lifespan.

[0103] FIG. 2 is a diagram for illustrating components disposed in a base 30 in the dishwasher according to an embodiment. The components constituting the heat pump system may be disposed, for example, under the tub 11.

[0104] The dishwasher may comprise the base 30 disposed under the tub 11. The heat pump system and other devices for driving the dishwasher may be disposed in the base 30. The base 30 has an inner space defined therein positioned under the tub 11, and the inner space may act as a machine room in which various mechanical components are disposed.

[0105] The dishwasher may comprise a mounting portion 40 on which the condenser 300 is mounted. The mounting portion 40 may be disposed in the base 30. The mounting portion 40 may be generally formed in a plate shape. Various components may be coupled to an upper surface of the mounting portion 40.

[0106] The mounting portion 40 may be disposed inside the base 30. The mounting portion 40 may be easily removed from the base 30. For example, the mounting portion 40 may be mounted to the base 30 using a fastening means. The fastening means may be unfastened, and the mounting portion 40 may move in a sliding manner as shown by arrows in FIG. 2 and thus may be removed from the base 30.

[0107] While the mounting portion 40 is guided by a guide rail formed on an inner side surface of the base 30, the mounting portion may slide to extend from the base 30.

[0108] The condenser 300 may be disposed on the mounting portion 40. The refrigerant and the washing water may flow in a separate manner in the condenser 300. The refrigerant may be condensed in the condenser 300. The refrigerant may be condensed to release latent heat of condensation such that the washing water may be heated by the heat released from the refrigerant.

[0109] Although not shown, the expansion valve may be disposed at an appropriate position of the mounting portion 40. Since a size of the expansion valve is smaller than a size of each of the other components constituting the heat pump system, the expansion value may be appropriately disposed on a spare space of the mounting portion 40.

[0110] The dishwasher may comprise a water softener device 41 for producing soft water. The water softener device 41 may be mounted on the mounting portion 40. The soft water is water that contains very little minerals such as calcium and magnesium, or does not contain the minerals such as calcium and magnesium. When washing the dishes using the soft water, the washing efficiency of the dishes may be improved, and the lifespan of the dishes may be increased. Therefore, it is necessary to wash the dishes using the soft water as needed.

[0111] In an embodiment, the washing water may be introduced into the water softener device 41, and the water may be converted into the soft water using the water softener device 41, and then the soft water may be used for dishwashing. However, the water softener device 41 is not an essential component of the dishwasher.

[0112] The water softener device 41 may communicate with the sump 100 through a pipe. Accordingly, the water introduced into the water softener device 41 may be softened by the water softener device 41. The soft water discharged from the water softener device 41 may be introduced into the sump 100 and used for washing the dishes.

[0113] The dishwasher may comprise the sump 100 in which the washing water is stored. The sump 100 may be mounted on the mounting portion 40. The sump 100 may be disposed under the tub 11.

[0114] The washing water stored in the sump 100 may flow under an operation of the washing pump 150 and may wash the dishes accommodated in the tub 11 while circulating through the sump 100, the washing pump 150, the plurality of spray arms 13, 14, and 15, and the tub 11.

[0115] In this regard, the washing water is heated by the heat pump system and sprayed from the plurality of spray arms 13, 14, and 15 in a high temperature state to wash or rinse the dishes accommodated in the tub 11, thereby improving washing efficiency.

[0116] In addition, the washing pump 150 may be mounted on the mounting portion 40. In addition, the compressor 500 may be mounted on the mounting portion 40. The compressor 500 may compress the refrigerant. In addition, the evaporator 600 may be mounted on the mounting portion 40.

[0117] As described above, the compressor 500, the condenser 300, the expansion device, and the evaporator 600 constituting the heat pump system communicate with each other through pipes, and the refrigerant may undergo phase change such that the temperature and pressure thereof change while circulating through each of the components constituting the heat pump system.

[0118] Meanwhile, when the washing pump 150 operates, the washing water may sequentially flow through the washing pump 150, the condenser 300, the plurality of spray arms 13, 14, and 15, the tub 11, and the sump 100, and may be introduced into the washing pump 150 again and may circulate the above-described components again.

[0119] The washing water passes through the condenser 300, such that the water leakage may occur in the condenser 300. When this water leakage persists, the water may drop to the mounting portion 40, thereby causing submersion of the other components disposed on the mounting portion 40 in the water. Therefore, damage to the components due to the submersion may occur.

[0120] Accordingly, there is a need for a structure capable of detecting whether water leakage has occurred in the condenser 300.

[0121] Furthermore, as the washing water is always flowing in the dishwasher, the water leakage may occur in other components as well and thus the leaked water may fall to the mounting portion 40. A structure capable of detecting such water leakage is required. This will be described below with reference to the drawings.

[0122] FIG. 3 is a plan view showing the mounting portion 40 and components disposed on the mounting portion 40 according to an embodiment. In FIG. 3 and the drawings subsequent thereto, the flow direction of the leaked water is indicated by hidden line arrows.

[0123] FIG. 4A is a cross-sectional view showing a portion 4-4' of FIG. 3. FIG. 5A is a partial enlarged view showing a portion 5A of FIG. 4A.

[0124] The dishwasher according to an embodiment may comprise the tub 11 in which the dishes are accommodated.

[0125] The dishwasher may comprise the base 30 disposed under the tub 11.

[0126] The dishwasher may comprise the mounting portion 40 disposed in the base 30.

[0127] The dishwasher may comprise the condenser 300 mounted on the mounting portion 40. The condenser 300 may be disposed on an upper surface of the mounting portion 40. Therefore, water leaking from the condenser 300 may collect on a bottom of the mounting portion 40, that is, on an upper surface 42a of a bottom member 42.

[0128] At least a portion of the water leaking from some components constituting the dishwasher, for example, the tub 11, the sump, the water softener device 41, etc., may also collect on the bottom of the mounting portion 40.

[0129] The dishwasher may comprise a water-leakage detector 700 mounted on the mounting portion 40. The water-leakage detector 700 may be disposed at a position spaced apart from the condenser 300.

[0130] Therefore, the water leaked from the condenser 300 may flow from the upper surface 42a of the bottom member 42 and flow into the water-leakage detector 700. Accordingly, the water-leakage detector 700 may detect the water leakage in the dishwasher.

[0131] The water-leakage detector 700 may be embodied as, for example, a floating type water-leakage detector. The floating type water-leakage detector 700 may be provided with a sensing component that floats on the water or expands by the water when the water flows therein.

[0132] When the water flows into the water-leakage detector 700, the sensing component may ascend or expand in reaction to the water. Accordingly, the water-leakage detector 700 may detect the water leakage in the dishwasher.

[0133] The sensitivity of the sensing component may be adjusted. Therefore, when the amount of the water leaking from the dishwasher exceeds a predefined amount, the water-leakage detector 700 may detect the water leakage.

[0134] When a minute amount of water leaks, this does not hinder the use of the dishwasher and does not inconvenience the user. Rather, the procedure dealing with this situation is cumbersome to cause annoyance.

[0135] Therefore, it is appropriate to appropriately adjust the sensitivity of the sensing component provided in the water-leakage detector 700 so that the water-leakage detector 700 detects the water leakage only when a predefined amount or greater of the water leaks.

[0136] The water-leakage detector 700 may be electrically connected to a controller of the dishwasher. Therefore, the controller may receive information about whether the water leakage has occurred from the water-leakage detector 700. When it is determined that the water leakage is detected, the controller may send an alarm notifying the user of the water leakage.

[0137] The condenser 300 may be configured such that a lower end thereof is positioned at a higher vertical level than that of a lower end of the water-leakage detector 700. For example, the condenser 300 may be disposed to be spaced upwardly from the upper surface 42a of the bottom member 42 of the mounting portion 40.

[0138] Due to this structure, a state in which the lower end of the condenser 300 is suspended in the air so as to be spaced from the upper surface 42a of the bottom member 42 may be established. Accordingly, the lower end of the condenser 300 may be positioned at a higher vertical level than that of the lower end of the water-leakage detector 700.

[0139] The water leaking from the components of the dishwasher and collecting on the upper surface 42a of the bottom member 42 may flow along the upper surface 42a of the bottom member 42 and flow into the lower end of the water-leakage detector 700. Accordingly, the water-leakage detector 700 may detect the water leakage.

[0140] Therefore, in order for the water leaked from the condenser 300 to flow smoothly to the lower end of the water-leakage detector 700 under the gravity, a difference between the vertical level of the lower ends of the condenser 300 and the water-leakage detector 700 is required.

[0141] In an embodiment, the lower end of the condenser 300 may be disposed at a vertical position higher than that of the lower end of the water-leakage detector 700. Accordingly, the water leaked from the condenser 300 may smoothly flow into the water-leakage detector 700 under the gravity. Therefore, the water-leakage detector 700 may effectively detect the water leakage.

[0142] The mounting portion 40 may comprise the bottom member 42 constituting a bottom thereof. The upper surface 42a of the bottom member 42 may extend in an inclined manner.

[0143] For example, the upper surface 42a of the bottom member 42 may have an inclination such that a vertical level of at least a portion thereof in an area thereof overlapping with the condenser in an up-down direction 300 is gradually lowered as the bottom member 42 extends toward the water-leakage detector 700.

[0144] For example, as shown in FIG. 4A, the upper surface 42a of the bottom member 42 may have an inclination in an area A1 of the upper surface 42a of the bottom member 42 belonging to a front area of the dishwasher corresponding to the position where the condenser 300 is disposed.

[0145] Due to this structure, the water leaking and falling down from the condenser 300 may flow smoothly under the gravity along the inclined surface of the upper surface 42a of the bottom member 42. This may effectively prevent the water falling down from the condenser 300 from remaining on a specific area of the upper surface 42a of the bottom member 42 without flowing to the water-leakage detector 700.

[0146] The condenser 300 may be disposed on a position corresponding to an edge of the bottom member 42. In this regard, the upper surface 42a of the bottom member 42 may be configured such that a vertical level of at least a portion thereof in the edge area overlapping with the condenser in an up-down direction 300 is gradually lowered as the bottom member 42 extends toward the water-leakage detector 700.

[0147] In the condenser among the components disposed on the mounting portion 40, 300, the flow of the washing water is most active. Thus, the possibility of the water leakage is particularly high from the condenser. Therefore, the condenser 300 may be disposed on the edge area of the mounting portion 40, and thus may be spaced apart from other components. Moreover, splashing of the water falling down from the condenser 300 to other components may be effectively suppressed. Accordingly, submersion of the components other than the condenser 300, particularly electronic components such as a printed circuit board, may be effectively suppressed.

[0148] The mounting portion 40 may comprise a tray 50 disposed at a position overlapping with the condenser in an up-down direction 300.

[0149] The condenser 300 may be oriented such that a longitudinal direction thereof is parallel to a longitudinal direction of the tray 50. For example, the condenser 300 may be oriented such that its longitudinal direction is the lateral direction of the dishwasher. Correspondingly, the tray 50 may also be oriented such that its longitudinal direction is the lateral direction of the dishwasher.

[0150] Due to this structure, the tray 50 may entirely overlap with the condenser 300 in the up-down direction. Therefore, an entirety of the water falling down from the condenser 300 may be received in the tray 50.

[0151] The tray 50 may be positioned such that an upper surface thereof is spaced apart from the lower end of the condenser 300 in the up-down direction. Therefore, a state in which the condenser 300 is suspended so as to be spaced from an upper surface of the tray 50 may be established.

[0152] The tray 50 may be provided generally in a plate shape having a predetermined thickness. The tray 50 may serve to receive therein the water falling down from the condenser 300.

[0153] Since the tray 50 has a predetermined thickness, a vertical level of the upper surface thereof may be higher than a vertical level of the upper surface 42a of the bottom member 42.

[0154] The tray 50 may be detachably coupled to the bottom member 42 by, for example, a coupling means such as a screw. Therefore, when the tray 50 is removed from the bottom member 42, only the tray 50 may be withdrawn or extend from the mounting portion 40 and the base 30.

[0155] Such a structure may provide convenience for work for maintenance of the tray 50 and the condenser 300.

[0156] As shown in FIGS. 4A and 5A, a step formed by the bottom member 42 and the tray 50 may be positioned in a path through which the water falling down from the condenser 300 flows to the water-leakage detector 700.

[0157] Such a step may be formed by an edge of the tray 50. The water flowing toward the water-leakage detector 700 may fall down from this step such that a flow speed thereof may further increase.

[0158] Therefore, the tray 50 having the predetermined thickness may be disposed on the upper surface 42a of the bottom member 42, such that the water falling down from the condenser 300 onto the tray 50 may flow more smoothly to the water-leakage detector 700.

[0159] The tray 50 may be disposed on the upper surface 42a of the bottom member 42. The upper surface of the tray 50 may have an inclination such that a vertical level thereof is gradually lowered as the tray extends toward the water-leakage detector 700.

[0160] Referring to FIG. 5A, the tray 50 may be disposed in the area A1. In this regard, the upper surface of the tray 50 may have the inclination. Therefore, a vertical level H2 of the upper surface at a side of the tray 50 facing the water-leakage detector 700 may be sized to be smaller than a vertical level H1 of the upper surface at a side of the tray 50 far away from the water-leakage detector 700.

[0161] For example, the thickness of the tray 50 may be sized to be constant as the tray 50 extends toward the water-leakage detector 700. In the case where the tray 50 of such a structure is disposed on the upper surface 42a of the bottom member 42 having the inclination, the upper surface of the tray 50 may also be configured to have the inclination such that the vertical level thereof is gradually decreased as the tray extends toward the water-leakage detector 700.

[0162] In another embodiment, the tray 50 itself may be configured so as to become gradually thinner as the tray 50 extends toward the water-leakage detector 700 so that the inclination of the upper surface of the tray 50 is steeper than the inclination of the upper surface 42a of the bottom member 42.

[0163] Due to this structure, as the water flows smoothly by gravity on and along the inclination of the upper surface of the bottom member 42, the water leaked and falling down from the condenser 300 may flow smoothly by gravity along the inclined surface of the upper surface of the tray 50. This may effectively prevent the water falling down from the condenser 300 from remaining on a specific area of the upper surface 42a of the bottom member 42 without flowing to the water-leakage detector 700.

[0164] The tray 50 may comprise a rib 51 protruding toward the condenser 300. The condenser 300 may be spaced upwardly from the upper surface of the tray 50. Therefore, the water falling down from the condenser 300 may splash back against the upper surface of the tray 50 and then flow in a direction other than the direction toward the water-leakage detector 700.

[0165] Therefore, even when the water falling down from the condenser 300 splashes back against the upper surface of the tray 50, it is necessary to guide the splashed water to flow toward the water-leakage detector 700. The rib 51 protruding upwardly from the upper surface of the tray 50 may effectively guide the water splashing back against the upper surface of the tray 50 to flow toward the water-leakage detector 700.

[0166] The water leaking from the condenser 300 may flow down on and along a surface of the condenser 300 under the surface tension and may fall down toward the tray 50 from the lower end of the condenser 300.

[0167] In this regard, a distance between the rib 51 and the water-leakage detector 700 may be sized to be greater than a distance between the lower end of the condenser 300 and the water-leakage detector 700.

[0168] Due to this structure, even when the water falling down from the lower end of the condenser 300 splashes back and flows in a direction opposite to the direction toward the water-leakage detector 700, the water may collide with a side wall of the rib 51 and thus flow back in the direction toward the water-leakage detector 700.

[0169] In an embodiment, the rib 51 protruding upwardly from the tray 50 may effectively guide water falling down from the condenser 300 and splashing back from the tray 50 to flow toward the water-leakage detector 700.

[0170] The bottom member 42 may comprise a mounting protrusion 401 protruding upwardly from an upper surface thereof. The water-leakage detector 700 may be mounted into the mounting protrusion 401.

[0171] A general shape of the mounting protrusion 401 may be formed to correspond to a shape of the water-leakage detector 700. For example, when the water-leakage detector 700 is formed in a circular shape in a plan view, the general shape of the mounting protrusion 401 may also be formed in a circular shape in a plan view.

[0172] The mounting protrusion 401 may guide a position where the water-leakage detector 700 is mounted on the mounting portion 40. Moreover, the mounting protrusion 401 may stably support the water-leakage detector 700.

[0173] The mounting protrusion 401 may comprise a protrusion 401a surrounding the water-leakage detector 700. The protrusion 401a may protrude upwardly from the upper surface 42a of the bottom member 42. A plurality of protrusions 401a may be arranged so as to be spaced apart from each other in a circular manner. The plurality of protrusions 401a may be arranged so as to surround the water-leakage detector 700.

[0174] The mounting protrusion 401 may comprise each groove 401b disposed between adjacent ones of the plurality of protrusions arranged so as to be spaced from each other. A plurality of grooves 401b may be arranged so as to be spaced apart from each other in a circular manner and may be arranged so as to surround the water-leakage detector 700. The groove 401b may serve as a passage through which the leaked water flows into the water-leakage detector 700.

[0175] The mounting protrusion 401 comprising the protrusion 401a and the groove 401b may support the water-leakage detector 700 and at the same time provide a passage through which the water flows into the water-leakage detector 700.

[0176] A portion of the water falling down from the tub 11 may not flow into the sump but leak and fall down to the mounting portion 40 under the tub 11. It is necessary to allow the portion of the water to fall down onto the tray 50 as much as possible and flow to the water-leakage detector 700. This is because the water falling onto the tray 50 is guided by the tray 50 and flows smoothly to the water-leakage detector 700.

[0177] In an embodiment, each of the condenser 300 and the tray 50 may be disposed at a position adjacent to a door and in a front area of the dishwasher.

[0178] Accordingly, the water leaking at a point where the door and the tub 11 contact each other and flowing downwardly from the tub 11 flows down along and on an inner side surface of the door, falls down onto the tray 50 disposed at a position adjacent to the door, and is guided by the tray 50 to flow toward the water-leakage detector 700.

[0179] FIG. 4B is a diagram for illustrating a dishwasher of an embodiment different from that shown in FIG. 4A.

[0180] The dishwasher may comprise a condenser supporter 53 disposed between the condenser 300 and the tray 50. The condenser supporter 53 may be detachably coupled to the tray 50.

[0181] The condenser supporter 53 may comprise a first part 531 having an upper surface formed as a curved surface corresponding to a lower surface of the condenser 300. The first part 531 may contact the lower surface of the condenser 300.

[0182] Therefore, the condenser 300 may be stably seated on the condenser supporter 53. Accordingly, the condenser 300 is supported on the condenser supporter 53 and thus a state in which the condenser 300 is suspended in the air is not established, such that the position of the condenser may be maintained without shaking even when an external impact is applied thereto.

[0183] The condenser supporter 53 may comprise a second part 532 extending downwardly from a lower surface of the first part 531. The second part 532 may connect the first part 531 and a third part 533 to each other. Therefore, the second part 532 may stably transmit a load of the condenser 300 to the third part 533. Accordingly, the condenser 300 may be stably supported on the condenser supporter 53.

[0184] The condenser supporter 53 may comprise the third part 533 connected to the second part 532. The third part 533 may be configured such that a lower surface thereof has an inclination corresponding to the inclination of the upper surface of the tray 50. The third part 533 may contact the upper surface of the tray 50.

[0185] The third part 533 may be detachably coupled to the tray 50 via a coupling means such as a screw. Therefore, when an operator intends to perform maintenance work on the condenser 300, the condenser supporter 53 may be easily removed from the tray 50. Accordingly, convenience may be provided to the operator.

[0186] The first part 531, the second part 532, and the third part 533 may be integrally formed with each other by, for example, injection molding.

[0187] Due to this structure, when the water flowing down from the condenser 300 reaches the third part 533, the water may flow smoothly on the inclined surface of the third part 533 by gravity and may flow to the water-leakage detector 700 located on the downhill side of the inclination.

[0188] The condenser supporter 53 may quietly guide the flow of the water flowing from the condenser 300 while supporting the condenser 300 thereon.

[0189] The water flowing from the condenser 300 may sequentially flow along a surface of the condenser supporter 53 contacting the lower end of the condenser 300, the first part 531, the second part 532, and the third part 533 under the surface tension. Thus, the water flowing from the condenser 300 may flow quietly along the surface of the condenser supporter 53 to the upper surface of the tray 50 without splashing.

[0190] Thus, the phenomenon that the water flowing from the condenser 300 falls down from the condenser 300 directly onto the tray 50 and thus splashes back against the tray 50, and then flows into other components near the tray 50 may be effectively prevented.

[0191] FIG. 5B is a partial enlarged view showing a portion 5B of FIG. 4B. The tray 50 may be formed to have an inclined surface 52 at an end thereof facing the water-leakage detector 700, wherein a vertical level of the inclined surface 52 is gradually lowered at the inclined surface 52 extends toward the water-leakage detector 700.

[0192] The water may flow quietly from the tray 50 along this inclined surface 52 to the water-leakage detector 700. If the end of the tray 50 is free of the inclined surface 52a but has a vertical surface right-angled relative to the upper surface 42a of the bottom member, the water may splash against the upper surface 42a due to the right-angled vertical surface.

[0193] In an embodiment, the inclined surface 52 may be formed at the end of the tray 50 facing the water-leakage detector 700. Accordingly, the phenomenon that the water splashes against the upper surface 42a due to the right-angled vertical surface may be prevented.

[0194] Accordingly, the water may escape from the tray 50 and flow quietly to the water-leakage detector 700. Therefore, the inclined surface 52 may effectively prevent the water from splashing against the upper surface 42a and flowing toward other components near the tray 50.

[0195] FIG. 6 is a plan view showing an area of the mounting portion 40 on which the water-leakage detector 700 is disposed. FIG. 7 is a perspective view showing an area of the mounting portion 40 on which the condenser 300 and the water-leakage detector 700 are disposed.

[0196] The dishwasher may comprise the compressor 500 mounted on the mounting portion 40. The compressor 500 may communicate with the condenser 300. The compressor 500 may compress the refrigerant.

[0197] The dishwasher may comprise the evaporator 600 mounted on the mounting portion 40. The evaporator 600 may communicate with the compressor 500. The refrigerant may evaporate while flowing in and along the evaporator 600.

[0198] The water leaking from the tub 11 without flowing into the sump from the tub 11 may fall down onto the compressor 500 disposed under the tub 11. Therefore, it is necessary to allow the water flowing down along the surface of the compressor 500 and collecting on the upper surface 42a of the bottom member 42 to flow to the water-leakage detector 700.

[0199] Meanwhile, the low-temperature refrigerant flows in the evaporator 600, such that the water vapor contained in ambient air may condense on the surface of the evaporator 600. Therefore, the water condensed on the surface of the evaporator 600 may flow down along the surface of the evaporator 600 and collect on the upper surface 42a of the bottom member 42.

[0200] In this regard, a draining device for draining the water condensed on the evaporator 600 to the outside may be provided. However, when water leakage occurs in such a draining device, the water leaking from the draining device may collect on the upper surface 42a of the bottom member 42.

[0201] It is necessary to allow the water flowing from the position where the evaporator 600 is disposed and then collecting on the upper surface 42a of the bottom member 42 to flow to the water-leakage detector 700.

[0202] In an embodiment, for this purpose, the water-leakage detector 700 may be configured such that a lower end thereof is positioned at a lower vertical level than that of each of a lower end of the compressor 500 and a lower end of the evaporator 600.

[0203] Accordingly, the water flowing from a position corresponding to the compressor 500 or the evaporator 600 and collecting on the upper surface 42a of the bottom member 42 may smoothly flow into the water-leakage detector 700 by gravity. Therefore, the water-leakage detector 700 may effectively detect the water leakage.

[0204] Referring to FIG. 6, the bottom member 42 may be configured such that the upper surface 42a of the bottom member 42 is divided into a plurality of pieces 42a-1, 42a-2, 42a-3, 42a-4. For example, these plurality of pieces may be formed integrally with each other.

[0205] A boundary between adjacent pieces may be formed as a valley. That is, inclinations symmetrical with each other around the boundary between the adjacent pieces may be respectively formed in the adjacent pieces.

[0206] Due to this structure, the water falling onto the upper surface 42a of the bottom member 42 may flow into the valley as the boundary between the pieces under the influence of gravity due to the inclination.

[0207] This valley may extend toward the water-leakage detector 700. Therefore, the water collected in the valley may be guided by the valley and flow smoothly to the water-leakage detector 700.

[0208] Under the above-described structure, the upper surface 42a of the bottom member 42 may have a very small amount of a flat area but have a substantial amount of an inclined area.

[0209] Due to such an inclined surface, the water collecting on the upper surface 42a of the bottom member 42 may flow smoothly toward the water-leakage detector 700. This may effectively prevent the water from pooling on a specific area of the upper surface 42a of the bottom member 42.

[0210] Accordingly, the operation performance of the water-leakage detector 700 may be improved.

[0211] FIG. 8 is a diagram for illustrating a guide bar 54 according to an embodiment.

[0212] The tray 50 may comprise a pair of guide bars 54 formed at positions spaced outwardly from both opposing sides of the lower end of the condenser 300, respectively. The guide bar 54 may protrude upwardly from the upper surface of the tray. Each of the pair of guide bars 54 may be oriented such that a longitudinal direction thereof is a direction toward the water-leakage detector 700.

[0213] The guide bar 54 may be formed in a rod shape. The guide bar 54 may protrude upwardly from the upper surface of the tray 50. A spacing between the pair of guide bars 54 may be adjusted so that an entirety of a housing defining the outer appearance of the condenser 300 excluding the piping is received in an area between the pair of guide bars 54 in the plan view of the dishwasher.

[0214] Due to this structure, the water flowing down from the condenser 300 may collide with the guide bar 54 and thus may flow toward the water-leakage detector 700 without flowing in the lateral direction of the dishwasher, that is, a direction crossing the direction toward the water-leakage detector 700.

[0215] The pair of guide bars 54 may be arranged such that a spacing therebetween becomes narrower as each of the pair of guide bars 54 extends toward the water-leakage detector 700.

[0216] Therefore, even when the water flowing from the tray 50 toward the water-leakage detector 700 leaves the guide bars 54, the flow does not spread in the lateral direction of the dishwasher, but may flow smoothly toward the water-leakage detector 700.

[0217] The present disclosure has been described above with reference to the drawings illustrated in the present disclosure. However, the present disclosure is not limited by the embodiments and drawings disclosed in the present disclosure, and it is obvious that various modifications may be made thereto by a person skilled in the art within the scope of the technical idea of the present disclosure. In addition, even when the effects according to the configuration of the present disclosure are not explicitly described and set forth while describing the embodiments of the present disclosure, it is obvious that the predictable effects therefrom should also be recognized.

Examples

Embodiment Construction

[0065]The above-mentioned purposes, features, and advantages will be described in detail later with reference to the attached drawings, so that those skilled in the art in the technical field to which the present disclosure belongs may easily practice the technical ideas of the present disclosure. In describing the present disclosure, when it is determined that a detailed description of the publicly known technology related to the present disclosure may unnecessarily obscure the gist of the present disclosure, the detailed description thereof will be omitted. Hereinafter, a preferred embodiment according to the present disclosure will be described in detail with reference to the attached drawings. In the drawings, identical reference numerals are used to indicate identical or similar components.

[0066]Although first, second, and the like are used to describe various components, these components are not limited by such terms. Such terms are only used to distinguish one component from ...

CROSS-REFERENCE TO RELATED APPLICATION

[0001] This application claims priority to and benefit of Korean Patent Applications No. 10-2025-0024363 filed on February 25, 2025, 10-2025-0032609 filed on March 13, 2025, 10-2025-0042750 filed on April 2, 2025, and 10-2025-0091204 filed on July 7, 2025, which is hereby incorporated by reference as when fully set forth herein.BACKGROUNDField

[0002] The present disclosure relates to a dishwasher, and more particularly, to a dishwasher equipped with a heat pump system for heating washing water.Description of Related Art

[0003] Content described in this section merely provides background information on the present disclosure and does not constitute the prior art.

[0004] A dishwasher is an apparatus that uses detergent and washing water to wash food residues such as food scraps on dishes or cookware.

[0005] A general dishwasher comprises a tub providing a washing space, a rack provided in the tub and accommodating therein dishes, a spray arm spraying the washing water to the rack, a sump storing therein the washing water, and a pump supplying the washing water stored in the sump to the spray arm.

[0006] A temperature of the washing water used in the dishwasher may be room temperature. However, washing efficiency may be improved and a washing time may be reduced by using high-temperature washing water. Accordingly, washing or rinsing of the dishes may be performed using the high-temperature washing water in at least a portion of an operation process of the dishwasher.

[0007] A heating device for heating the washing water may be embodied as, for example, an electric heater, a heat pump system, or the like.

[0008] Since the heat pump system has higher energy efficiency compared to the electric heater, a case in which a washing water heating scheme using the heat pump system is introduced into the dishwasher is increasing recently.

[0009] The heat pump system may be provided with a condenser configured to heat the washing water by exchanging heat between a high-temperature refrigerant and relatively low-temperature washing water. The washing water may be heated to a high temperature as it passes through the condenser.

[0010] Since the washing water passes through the condenser, water leakage may occur at the condenser. When such water leakage persists, the water may drop to a lower portion of the dishwasher, which may result in the submersion of other components disposed in a lower space of the dishwasher in the water. Accordingly, the damage to the components due to the submersion may occur.

[0011] Therefore, there is a need for a structure capable of detecting whether water leakage occurs at the condenser.

[0012] In addition, the washing water constantly flows within the dishwasher, such that the water leakage may also occur in other components. Thus, a structure capable of detecting such water leakage is required.SUMMARY

[0013] A technical purpose of the present disclosure is to provide a dishwasher having a structure capable of detecting water leakage in a condenser.

[0014] Another technical purpose of the present disclosure is to provide a dishwasher having a structure capable of detecting water leakage occurring in components other than the condenser.

[0015] Purposes according to the present disclosure are not limited to the above-mentioned purpose. Other purposes and advantages according to the present disclosure that are not mentioned may be understood based on following descriptions, and may be more clearly understood based on embodiments according to the present disclosure. Further, it will be easily understood that the purposes and advantages according to the present disclosure may be realized using means shown in the claims or combinations thereof.

[0016] A dishwasher according to an embodiment may comprise a tub in which dishes are accommodated.

[0017] The dishwasher may comprise a base disposed under the tub.

[0018] The dishwasher may comprise a mounting portion disposed in the base.

[0019] The dishwasher may comprise a condenser mounted on the mounting portion.

[0020] The dishwasher may comprise a water-leakage detector mounted on the mounting portion. The water-leakage detector may be disposed at a position spaced apart from the condenser.

[0021] The condenser may be configured such that a lower end of the condenser is positioned at a higher vertical level than that of a lower end of the water-leakage detector.

[0022] The mounting portion may comprise a bottom member constituting a bottom thereof. An upper surface of the bottom member may extend in an inclined manner.

[0023] For example, the upper surface of the bottom member may have an inclination such that a vertical level of at least a portion of the upper surface thereof in an area overlapping with the condenser in an up-down direction is gradually lowered as the bottom member extends toward the water-leakage detector.

[0024] The condenser may be disposed at a position overlapping an edge of the bottom member in an up-down direction. In this regard, the upper surface of the bottom member may be configured such that a vertical level of at least a portion of the upper surface of the bottom member in the edge overlapping with the condenser in the up-down direction is gradually lowered as the bottom member extends toward the water-leakage detector.

[0025] The mounting portion may comprise a tray disposed at a position overlapping with the condenser in an up-down direction.

[0026] The condenser may be oriented such that a longitudinal direction thereof is parallel to a longitudinal direction of the tray.

[0027] The tray may be positioned such that an upper surface thereof is spaced apart from the lower end of the condenser in an up-down direction.

[0028] The tray may comprise a rib protruding toward the condenser.

[0029] A distance between the rib and the water-leakage detector may be sized to be greater than a distance between the lower end of the condenser and the water-leakage detector.

[0030] The bottom member may comprise a mounting protrusion protruding upwardly from the upper surface of the bottom member. The water-leakage detector may be mounted into the mounting protrusion.

[0031] The mounting protrusion may comprise a plurality of protrusions protruding upwardly from the upper surface of the bottom member. The plurality of protrusions may be arranged so as to surround the water-leakage detector and so as to be spaced apart from each other.

[0032] The mounting protrusion may further comprise each groove defined between adjacent ones of the plurality of protrusions. A plurality of grooves may be arranged so as to be spaced apart from each other. The groove may act as a passage through which leaked water flows into the water-leakage detector.

[0033] Each of the condenser and the tray may be disposed in a front area of the dishwasher and at a position adjacent to a door.

[0034] The dishwasher may comprise a compressor mounted on the mounting portion. The compressor may communicate with the condenser. The compressor may compress refrigerant.

[0035] The dishwasher may comprise an evaporator mounted on the mounting portion. The evaporator may communicate with the compressor. The refrigerant may evaporate while flowing through the evaporator.

[0036] The water-leakage detector may be configured such that a vertical level of a lower end of the water-leakage detector is lower than a vertical level of each of a lower end of the compressor and a lower end of the evaporator.

[0037] The dishwasher may comprise a condenser supporter disposed between the condenser and the tray. The condenser supporter may be detachably coupled to the tray.

[0038] The supporter may comprise a first part having an upper surface formed as a curved surface corresponding to or conformal to a lower surface of the condenser. The first part may contact the lower surface of the condenser.

[0039] The supporter may comprise a second part extending downward from a lower surface of the first part.

[0040] The supporter may comprise a third part connected to the second part. The third part may be formed such that a lower surface thereof has an inclination corresponding to an inclination of an upper surface of the tray. The third part may contact the upper surface of the tray.

[0041] The tray may be formed to have an inclined surface at an end thereof facing the water-leakage detector, wherein a vertical level of the inclined surface may be gradually lowered as the inclined surface extends toward the water-leakage detector.

[0042] The tray may comprise a pair of guide bars protruding upwardly from an upper surface of the tray and formed at positions spaced outwardly from both opposing sides of the lower end of the condenser, respectively. Each of the pair of guide bars may be oriented such that a longitudinal direction thereof is a direction toward the water-leakage detector.

[0043] The pair of guide bars may be arranged such that a spacing therebetween becomes narrower as each of the pair of guide bars extends toward the water-leakage detector.

[0044] In the dishwasher according to the present disclosure, the lower end of the condenser may be disposed at a position higher than that of the lower end of the water-leakage detector. Accordingly, water leaked from the condenser may smoothly flow into the water-leakage detector by gravity. Therefore, the water-leakage detector may effectively detect water leakage.

[0045] Moreover, in the dishwasher according to the present disclosure, the upper surface of the bottom member may have the inclination such that a vertical level of at least a portion of the upper surface thereof in an area overlapping with the condenser in an up-down direction is gradually lowered as the bottom member extends toward the water-leakage detector.

[0046] Due to this structure, the water leaking and falling down from the condenser may flow smoothly along the inclined portion of the upper surface of the bottom member by gravity. This may effectively prevent the water falling down from the condenser from remaining on a specific area of the upper surface of the bottom member without flowing to the water-leakage detector.

[0047] Moreover, in the dishwasher according to the present disclosure, a step formed by the bottom member and the tray may be positioned in a path through which the water falling down from the condenser flows to the water-leakage detector.

[0048] This step may be formed by an edge of the tray. The water flowing toward the water-leakage detector falls down from this step and its flow speed may further increase.

[0049] Therefore, the tray having a predetermined thickness may be disposed on the upper surface of the bottom member, such that the water falling down from the condenser onto the tray may flow more smoothly to the water-leakage detector.

[0050] The tray may be placed on the upper surface of the bottom member. The upper surface of the tray may have an inclination such that a vertical level thereof is gradually lowered as the tray extends toward the water-leakage detector.

[0051] Moreover, in the dishwasher according to the present disclosure, the rib protruding upwardly from the tray may effectively guide the water falling down from the condenser and splashing back against the tray to flow toward the water-leakage detector.

[0052] Moreover, in the dishwasher according to the present disclosure, the lower end of the water-leakage detector may be positioned at a vertical level lower than a vertical level of each of the lower end of the compressor and the lower end of the evaporator.

[0053] Accordingly, the water falling down from a position corresponding to the compressor or the evaporator and collecting on the upper surface of the bottom member may smoothly flow into the water-leakage detector by gravity. Therefore, the water-leakage detector may effectively detect water leakage.

[0054] Specific effects of the present disclosure in addition to the above-described effects will be described together while illustrating specific details for carrying out the present disclosure below.BRIEF DESCRIPTION OF DRAWINGS

[0055] FIG. 1 is a cross-sectional view of a dishwasher according to an embodiment.

[0056] FIG. 2 is a diagram for illustrating components disposed in a base in a dishwasher according to an embodiment.

[0057] FIG. 3 is a plan view showing a mounting portion and components disposed on the mounting portion according to an embodiment.

[0058] FIG. 4A is a cross-sectional view showing a portion 4-4' of FIG. 3.

[0059] FIG. 4B is a diagram for illustrating a dishwasher of an embodiment different from that shown in FIG. 4A.

[0060] FIG. 5A is a partial enlarged view showing a portion 5A of FIG. 4A.

[0061] FIG. 5B is a partial enlarged view showing a portion 5B of FIG. 4B.

[0062] FIG. 6 is a plan view showing an area of a mounting portion on which a water-leakage detector is disposed.

[0063] FIG. 7 is a perspective view showing an area of a mounting portion on which a condenser and a water-leakage detector are disposed.

[0064] FIG. 8 is a diagram for illustrating a guide bar according to an embodiment.DETAILED DESCRIPTIONS

[0065] The above-mentioned purposes, features, and advantages will be described in detail later with reference to the attached drawings, so that those skilled in the art in the technical field to which the present disclosure belongs may easily practice the technical ideas of the present disclosure. In describing the present disclosure, when it is determined that a detailed description of the publicly known technology related to the present disclosure may unnecessarily obscure the gist of the present disclosure, the detailed description thereof will be omitted. Hereinafter, a preferred embodiment according to the present disclosure will be described in detail with reference to the attached drawings. In the drawings, identical reference numerals are used to indicate identical or similar components.

[0066] Although first, second, and the like are used to describe various components, these components are not limited by such terms. Such terms are only used to distinguish one component from another component, and unless specifically stated to the contrary, a first component may also be a second component.

[0067] Throughout the present document, unless otherwise stated, each component may be singular or plural.

[0068] As used herein, singular expressions comprise plural expressions, unless the context clearly dictates otherwise. In the present application, terms such as “composed of” or “include” should not be construed as necessarily including all of various components or steps described herein, and should be interpreted as being able to not including some of the components or the steps and further including additional components or steps.

[0069] Throughout the present disclosure, "A and / or B" means A, B, or A and B, unless otherwise specified, and "C to D" means C inclusive to D inclusive unless otherwise specified.

[0070] As used herein, terms such as "upper”, “lower”, “side", etc. are used to refer to a portion, a direction, and the like of a dishwasher in a state where the dishwasher is generally installed.

[0071] FIG. 1 is a cross-sectional view of a dishwasher according to an embodiment. The dishwasher according to an embodiment may comprise a casing 11 defining an outer appearance of the dishwasher, a tub 11 in which dishes to be washed are accommodated, a door 20 provided on a front surface of the tub 11 to open and close the tub 11, and a sump 100 disposed under the tub 11 to store therein washing water.

[0072] The dishwasher may further comprise a plurality of spray arms 13, 14, and 15 provided in the tub 11 and spraying the washing water, a filter 110 provided in the sump 100 and filtering washing water sprayed from at least one of the plurality of spray arms 13, 14, and 15 and recovered to the sump 100, a washing pump 150 transferring the washing water stored in the sump 100, and a switching valve 130 controlling selective flow of the washing water transferred under the operation of the washing pump 150 to at least one of the plurality of spray arms 13, 14, and 15.

[0073] The tub 11 may be formed in a hexahedral shape with an open front surface and may have a washing chamber 12a defined therein. A communication hole through which washing water flows into the sump 100 is formed in a bottom 12b of the tub 11. In the washing chamber 12a, a plurality of racks 16 and 17 in which a washing target is accommodated is disposed. The plurality of racks 16 and 17 may comprise a lower rack 16 disposed in a lower area of the washing chamber 12a and an upper rack 17 disposed in an upper area of the washing chamber 12a. The lower rack 16 and the upper rack 17 are disposed to be spaced apart from each other in an up-down direction, and may slide in the frontward direction of the tub 11 and extend from the tub 11.

[0074] The plurality of spray arms 13, 14, and 15 are arranged in the up-down direction. The plurality of spray arms 13, 14, and 15 may comprise a lower spray arm 13 disposed at the lowermost end and spraying the washing water in an upward direction toward the lower rack 16, an upper spray arm 14 disposed on top of the lower spray arm 13 and spraying the washing water upwardly toward the upper rack 17, and a top spray arm 15 disposed at the upper end of the washing chamber 12a and on top of the upper spray arm 14 and spraying the washing water downwardly.

[0075] The plurality of spray arms 13, 14, and 15 are supplied with the washing water from the washing pump 150 through a plurality of spray arm connection flow paths 18, 19, and 21. The plurality of spray arm connection flow paths 18, 19, and 21 may comprise a lower spray arm connection flow path 18 connected to the lower spray arm 13, an upper spray arm connection flow path 19 connected to the upper spray arm 14, and a top spray arm connection flow path 21 connected to the top spray arm 15.

[0076] The lower spray arm 13, the upper spray arm 14, and the top spray arm 15 may be supplied with the washing water from the washing pump 150 through the upper spray arm connection flow path 18, the upper spray arm connection flow path 19, and the top spray arm connection flow path 21, respectively.

[0077] The sump 100 may be disposed under the bottom 12b of the tub 11 and may collect the washing water. The filter 110 may filter contaminants from the washing water flowing from the tub 11 to the sump 100.

[0078] The washing water sprayed through the plurality of spray arms 13, 14, and 15 along with the contaminants deposited on and removed from the washing target drops to the bottom 12b of the tub 11. Accordingly, the washing water containing the contaminants may be filtered while flowing through the filter 110 communicating with the bottom 12b of the tub 11 and thus the contaminants-free washing water may be stored in the sump 100.

[0079] During the washing operation, the washing water may wash the dishes accommodated in the racks 16 and 17 while circulating through the sump 100, the spray arms 13, 14, and 15, the tub 11, and the filter 110.

[0080] The washing pump 150 supplies the washing water stored in the sump 100 to at least one of the plurality of spray arms 13, 14, and 15. The washing pump 150 may comprise a washing motor that generates a rotational force, and an impeller that is rotated by the washing motor to transfer the washing water. The washing pump 150 may be connected to the switching valve 130 and a washing water supply flow path 180.

[0081] When the washing pump 150 operates, the washing water stored in the sump 100 may be introduced into the washing pump 150 through a water collection flow path 170 and then transferred to the switching valve 130 through the washing water supply flow path 180.

[0082] The switching valve 130 selectively supplies the washing water transferred under the operation of the washing pump 150 to at least one of the lower spray arm 13, the upper spray arm 14, and the top spray arm 15. The switching valve 130 may selectively connect the washing water supply flow path 180 to at least one of the plurality of spray arm connection flow paths 18, 19, and 21.

[0083] The sump 100 is connected to a water supply flow path 23 through which the washing water supplied from an external water source flows. A water supply valve 22 for controlling flow of the washing water supplied from the external water source may be provided in the water supply flow path 23. The water supply valve 22 may control supply of the washing water from the external water source to the sump 100. When the water supply valve 22 is opened, the washing water supplied from the external water source may be introduced into the sump 100 through the water supply flow path 23.

[0084] The sump 100 may be connected to a drain flow path 24 for draining the washing water to the outside out of the dishwasher. A drain pump 25 for draining the washing water in the sump 100 through the drain flow path 24 may be provided in the drain flow path 24. When the drain pump 25 operates, the washing water stored in the sump 100 may be drained to the outside out of the casing 11 through the drain flow path 24.

[0085] A heating device for heating the washing water may be provided inside the sump 100 or in the washing pump 150. The heating device may be embodied as, for example, an electric heater, a heat pump system, or the like.

[0086] In an embodiment, the washing water may be heated using the heat pump system. Hereinafter, the heat pump system will be described first.

[0087] The heat pump system refers to a system that pumps heat from a low temperature environment into a high temperature environment. In this regard, the pumping of the heat may be implemented using, for example, the compressor 500. In an embodiment, the heat pump system may be implemented using a so-called two-phase flow refrigeration cycle that increases the temperature of the refrigerant by compressing the refrigerant flowing in two phases into a gaseous state using a compressor 500.

[0088] The heat pump system for performing the two-phase flow refrigeration cycle may comprise the compressor 500, a condenser 300, an expansion device, and an evaporator 600. These components are connected to each other through pipes. While the refrigerant is flowing and circulating these components, the phase thereof and the temperature thereof change, such that the refrigerant may absorb heat from the surroundings or emit the heat to the surroundings.

[0089] The refrigerant may be introduced into the compressor 500 in a low temperature gaseous state. The refrigerant may be compressed in the compressor 500. From an outlet of the compressor 500, the refrigerant may be introduced into the condenser 300 in a super-heated gas state of the high temperature and high pressure.

[0090] The refrigerant and the washing water may flow separately in the condenser 300. The refrigerant may be introduced into the condenser 300 and exchange the heat with the washing water, and the washing water may be heated upon receiving the heat from the refrigerant.

[0091] The condenser 300 may be formed in various shapes. In addition, the condenser 300 may be provided with various flow paths through which the refrigerant and the washing water separately flow.

[0092] The refrigerant may be phase-changed from the superheated gas state to a saturated state in which liquid and gas coexist while the refrigerant is maintained at theoretically the same pressure in the condenser 300.

[0093] The refrigerant flows into the condenser 300 in the superheated state and transfers the heat to the washing water such that the temperature of the refrigerant is lowered. Then, when the refrigerant reaches the saturated state, a proportion of the liquid therein may gradually increase while the refrigerant is maintained theoretically at the same temperature. In this liquefaction process, the refrigerant emits a large amount of latent heat of liquefaction, and the washing water may be heated upon receiving the heat.

[0094] The refrigerant from the condenser 300 may be introduced into the expansion device in the saturated liquid or a super cooled liquid state. Such an expansion device may be embodied as, for example, an expansion valve or a capillary device.

[0095] The refrigerant may undergo an adiabatic expansion, i.e., an expansion in which the enthalpy is theoretically constant in the expansion device. In this expansion process, a portion of the refrigerant is vaporized, and accordingly, the pressure of the refrigerant may be lowered. As the portion of the refrigerant is vaporized to dissipate the heat of vaporization to the surroundings, the temperature of the entirety of the refrigerant may be lowered. That is, the refrigerant may be introduced into the evaporator 600 in a state of low temperature and low pressure obtained while flowing through the expansion device.

[0096] When the refrigerant is introduced into the evaporator 600, the proportion of gas in the refrigerant may gradually increase in the evaporator 600 while absorbing the heat from the relatively high temperature surroundings. In the evaporator 600, the proportion of the gas in the refrigerant may gradually increase while the refrigerant is maintained at theoretically the same pressure and the same temperature.

[0097] The refrigerant discharged from the evaporator 600 may be introduced into the compressor 500 in a state in which a small amount of liquid is present in the refrigerant or the refrigerant is slightly overheated. The refrigerant introduced into the compressor 500 may circulate through the compressor 500, the condenser 300, the expansion device, and the evaporator 600 while repeating the above-described process again.

[0098] Typically, a refrigeration apparatus uses a principle in which the refrigerant absorbs the heat in the evaporator 600. The heat pump system of an embodiment may use the heat released from the refrigerant in the condenser 300.

[0099] In the heat pump system, the heat exchange occurs between the high temperature refrigerant and the relatively low temperature washing water in the condenser 300, and thus the washing water may be heated. The high-temperature washing water heated by the condenser 300 may wash or rinse the dishes more easily than the washing water at room temperature.

[0100] In this regard, such a heat pump system does not always need to operate while the dishwasher is operating the washing or rinsing process. For example, when the washing or rinsing is performed using the washing water at the room temperature, the compressor 500 does not operate, so that the water at the room temperature may be sprayed to the dishes without heating the washing water.

[0101] Even when the compressor 500 is stopped and the washing water is not heated, the washing water may flow through the condenser 300 and circulate throughout the dishwasher.

[0102] In another embodiment, a bypass flow path bypassing the condenser 300 may be defined. Thus, when the compressor 500 is stopped, the washing water may flow along the bypass flow path to bypass the condenser, thereby improving the performance of the condenser 300 and extending its lifespan.

[0103] FIG. 2 is a diagram for illustrating components disposed in a base 30 in the dishwasher according to an embodiment. The components constituting the heat pump system may be disposed, for example, under the tub 11.

[0104] The dishwasher may comprise the base 30 disposed under the tub 11. The heat pump system and other devices for driving the dishwasher may be disposed in the base 30. The base 30 has an inner space defined therein positioned under the tub 11, and the inner space may act as a machine room in which various mechanical components are disposed.

[0105] The dishwasher may comprise a mounting portion 40 on which the condenser 300 is mounted. The mounting portion 40 may be disposed in the base 30. The mounting portion 40 may be generally formed in a plate shape. Various components may be coupled to an upper surface of the mounting portion 40.

[0106] The mounting portion 40 may be disposed inside the base 30. The mounting portion 40 may be easily removed from the base 30. For example, the mounting portion 40 may be mounted to the base 30 using a fastening means. The fastening means may be unfastened, and the mounting portion 40 may move in a sliding manner as shown by arrows in FIG. 2 and thus may be removed from the base 30.

[0107] While the mounting portion 40 is guided by a guide rail formed on an inner side surface of the base 30, the mounting portion may slide to extend from the base 30.

[0108] The condenser 300 may be disposed on the mounting portion 40. The refrigerant and the washing water may flow in a separate manner in the condenser 300. The refrigerant may be condensed in the condenser 300. The refrigerant may be condensed to release latent heat of condensation such that the washing water may be heated by the heat released from the refrigerant.

[0109] Although not shown, the expansion valve may be disposed at an appropriate position of the mounting portion 40. Since a size of the expansion valve is smaller than a size of each of the other components constituting the heat pump system, the expansion value may be appropriately disposed on a spare space of the mounting portion 40.

[0110] The dishwasher may comprise a water softener device 41 for producing soft water. The water softener device 41 may be mounted on the mounting portion 40. The soft water is water that contains very little minerals such as calcium and magnesium, or does not contain the minerals such as calcium and magnesium. When washing the dishes using the soft water, the washing efficiency of the dishes may be improved, and the lifespan of the dishes may be increased. Therefore, it is necessary to wash the dishes using the soft water as needed.

[0111] In an embodiment, the washing water may be introduced into the water softener device 41, and the water may be converted into the soft water using the water softener device 41, and then the soft water may be used for dishwashing. However, the water softener device 41 is not an essential component of the dishwasher.

[0112] The water softener device 41 may communicate with the sump 100 through a pipe. Accordingly, the water introduced into the water softener device 41 may be softened by the water softener device 41. The soft water discharged from the water softener device 41 may be introduced into the sump 100 and used for washing the dishes.

[0113] The dishwasher may comprise the sump 100 in which the washing water is stored. The sump 100 may be mounted on the mounting portion 40. The sump 100 may be disposed under the tub 11.

[0114] The washing water stored in the sump 100 may flow under an operation of the washing pump 150 and may wash the dishes accommodated in the tub 11 while circulating through the sump 100, the washing pump 150, the plurality of spray arms 13, 14, and 15, and the tub 11.

[0115] In this regard, the washing water is heated by the heat pump system and sprayed from the plurality of spray arms 13, 14, and 15 in a high temperature state to wash or rinse the dishes accommodated in the tub 11, thereby improving washing efficiency.

[0116] In addition, the washing pump 150 may be mounted on the mounting portion 40. In addition, the compressor 500 may be mounted on the mounting portion 40. The compressor 500 may compress the refrigerant. In addition, the evaporator 600 may be mounted on the mounting portion 40.

[0117] As described above, the compressor 500, the condenser 300, the expansion device, and the evaporator 600 constituting the heat pump system communicate with each other through pipes, and the refrigerant may undergo phase change such that the temperature and pressure thereof change while circulating through each of the components constituting the heat pump system.

[0118] Meanwhile, when the washing pump 150 operates, the washing water may sequentially flow through the washing pump 150, the condenser 300, the plurality of spray arms 13, 14, and 15, the tub 11, and the sump 100, and may be introduced into the washing pump 150 again and may circulate the above-described components again.

[0119] The washing water passes through the condenser 300, such that the water leakage may occur in the condenser 300. When this water leakage persists, the water may drop to the mounting portion 40, thereby causing submersion of the other components disposed on the mounting portion 40 in the water. Therefore, damage to the components due to the submersion may occur.

[0120] Accordingly, there is a need for a structure capable of detecting whether water leakage has occurred in the condenser 300.

[0121] Furthermore, as the washing water is always flowing in the dishwasher, the water leakage may occur in other components as well and thus the leaked water may fall to the mounting portion 40. A structure capable of detecting such water leakage is required. This will be described below with reference to the drawings.

[0122] FIG. 3 is a plan view showing the mounting portion 40 and components disposed on the mounting portion 40 according to an embodiment. In FIG. 3 and the drawings subsequent thereto, the flow direction of the leaked water is indicated by hidden line arrows.

[0123] FIG. 4A is a cross-sectional view showing a portion 4-4' of FIG. 3. FIG. 5A is a partial enlarged view showing a portion 5A of FIG. 4A.

[0124] The dishwasher according to an embodiment may comprise the tub 11 in which the dishes are accommodated.

[0125] The dishwasher may comprise the base 30 disposed under the tub 11.

[0126] The dishwasher may comprise the mounting portion 40 disposed in the base 30.

[0127] The dishwasher may comprise the condenser 300 mounted on the mounting portion 40. The condenser 300 may be disposed on an upper surface of the mounting portion 40. Therefore, water leaking from the condenser 300 may collect on a bottom of the mounting portion 40, that is, on an upper surface 42a of a bottom member 42.

[0128] At least a portion of the water leaking from some components constituting the dishwasher, for example, the tub 11, the sump, the water softener device 41, etc., may also collect on the bottom of the mounting portion 40.

[0129] The dishwasher may comprise a water-leakage detector 700 mounted on the mounting portion 40. The water-leakage detector 700 may be disposed at a position spaced apart from the condenser 300.

[0130] Therefore, the water leaked from the condenser 300 may flow from the upper surface 42a of the bottom member 42 and flow into the water-leakage detector 700. Accordingly, the water-leakage detector 700 may detect the water leakage in the dishwasher.

[0131] The water-leakage detector 700 may be embodied as, for example, a floating type water-leakage detector. The floating type water-leakage detector 700 may be provided with a sensing component that floats on the water or expands by the water when the water flows therein.

[0132] When the water flows into the water-leakage detector 700, the sensing component may ascend or expand in reaction to the water. Accordingly, the water-leakage detector 700 may detect the water leakage in the dishwasher.

[0133] The sensitivity of the sensing component may be adjusted. Therefore, when the amount of the water leaking from the dishwasher exceeds a predefined amount, the water-leakage detector 700 may detect the water leakage.

[0134] When a minute amount of water leaks, this does not hinder the use of the dishwasher and does not inconvenience the user. Rather, the procedure dealing with this situation is cumbersome to cause annoyance.

[0135] Therefore, it is appropriate to appropriately adjust the sensitivity of the sensing component provided in the water-leakage detector 700 so that the water-leakage detector 700 detects the water leakage only when a predefined amount or greater of the water leaks.

[0136] The water-leakage detector 700 may be electrically connected to a controller of the dishwasher. Therefore, the controller may receive information about whether the water leakage has occurred from the water-leakage detector 700. When it is determined that the water leakage is detected, the controller may send an alarm notifying the user of the water leakage.

[0137] The condenser 300 may be configured such that a lower end thereof is positioned at a higher vertical level than that of a lower end of the water-leakage detector 700. For example, the condenser 300 may be disposed to be spaced upwardly from the upper surface 42a of the bottom member 42 of the mounting portion 40.

[0138] Due to this structure, a state in which the lower end of the condenser 300 is suspended in the air so as to be spaced from the upper surface 42a of the bottom member 42 may be established. Accordingly, the lower end of the condenser 300 may be positioned at a higher vertical level than that of the lower end of the water-leakage detector 700.

[0139] The water leaking from the components of the dishwasher and collecting on the upper surface 42a of the bottom member 42 may flow along the upper surface 42a of the bottom member 42 and flow into the lower end of the water-leakage detector 700. Accordingly, the water-leakage detector 700 may detect the water leakage.

[0140] Therefore, in order for the water leaked from the condenser 300 to flow smoothly to the lower end of the water-leakage detector 700 under the gravity, a difference between the vertical level of the lower ends of the condenser 300 and the water-leakage detector 700 is required.

[0141] In an embodiment, the lower end of the condenser 300 may be disposed at a vertical position higher than that of the lower end of the water-leakage detector 700. Accordingly, the water leaked from the condenser 300 may smoothly flow into the water-leakage detector 700 under the gravity. Therefore, the water-leakage detector 700 may effectively detect the water leakage.

[0142] The mounting portion 40 may comprise the bottom member 42 constituting a bottom thereof. The upper surface 42a of the bottom member 42 may extend in an inclined manner.

[0143] For example, the upper surface 42a of the bottom member 42 may have an inclination such that a vertical level of at least a portion thereof in an area thereof overlapping with the condenser in an up-down direction 300 is gradually lowered as the bottom member 42 extends toward the water-leakage detector 700.

[0144] For example, as shown in FIG. 4A, the upper surface 42a of the bottom member 42 may have an inclination in an area A1 of the upper surface 42a of the bottom member 42 belonging to a front area of the dishwasher corresponding to the position where the condenser 300 is disposed.

[0145] Due to this structure, the water leaking and falling down from the condenser 300 may flow smoothly under the gravity along the inclined surface of the upper surface 42a of the bottom member 42. This may effectively prevent the water falling down from the condenser 300 from remaining on a specific area of the upper surface 42a of the bottom member 42 without flowing to the water-leakage detector 700.

[0146] The condenser 300 may be disposed on a position corresponding to an edge of the bottom member 42. In this regard, the upper surface 42a of the bottom member 42 may be configured such that a vertical level of at least a portion thereof in the edge area overlapping with the condenser in an up-down direction 300 is gradually lowered as the bottom member 42 extends toward the water-leakage detector 700.

[0147] In the condenser among the components disposed on the mounting portion 40, 300, the flow of the washing water is most active. Thus, the possibility of the water leakage is particularly high from the condenser. Therefore, the condenser 300 may be disposed on the edge area of the mounting portion 40, and thus may be spaced apart from other components. Moreover, splashing of the water falling down from the condenser 300 to other components may be effectively suppressed. Accordingly, submersion of the components other than the condenser 300, particularly electronic components such as a printed circuit board, may be effectively suppressed.

[0148] The mounting portion 40 may comprise a tray 50 disposed at a position overlapping with the condenser in an up-down direction 300.

[0149] The condenser 300 may be oriented such that a longitudinal direction thereof is parallel to a longitudinal direction of the tray 50. For example, the condenser 300 may be oriented such that its longitudinal direction is the lateral direction of the dishwasher. Correspondingly, the tray 50 may also be oriented such that its longitudinal direction is the lateral direction of the dishwasher.

[0150] Due to this structure, the tray 50 may entirely overlap with the condenser 300 in the up-down direction. Therefore, an entirety of the water falling down from the condenser 300 may be received in the tray 50.

[0151] The tray 50 may be positioned such that an upper surface thereof is spaced apart from the lower end of the condenser 300 in the up-down direction. Therefore, a state in which the condenser 300 is suspended so as to be spaced from an upper surface of the tray 50 may be established.

[0152] The tray 50 may be provided generally in a plate shape having a predetermined thickness. The tray 50 may serve to receive therein the water falling down from the condenser 300.

[0153] Since the tray 50 has a predetermined thickness, a vertical level of the upper surface thereof may be higher than a vertical level of the upper surface 42a of the bottom member 42.

[0154] The tray 50 may be detachably coupled to the bottom member 42 by, for example, a coupling means such as a screw. Therefore, when the tray 50 is removed from the bottom member 42, only the tray 50 may be withdrawn or extend from the mounting portion 40 and the base 30.

[0155] Such a structure may provide convenience for work for maintenance of the tray 50 and the condenser 300.

[0156] As shown in FIGS. 4A and 5A, a step formed by the bottom member 42 and the tray 50 may be positioned in a path through which the water falling down from the condenser 300 flows to the water-leakage detector 700.

[0157] Such a step may be formed by an edge of the tray 50. The water flowing toward the water-leakage detector 700 may fall down from this step such that a flow speed thereof may further increase.

[0158] Therefore, the tray 50 having the predetermined thickness may be disposed on the upper surface 42a of the bottom member 42, such that the water falling down from the condenser 300 onto the tray 50 may flow more smoothly to the water-leakage detector 700.

[0159] The tray 50 may be disposed on the upper surface 42a of the bottom member 42. The upper surface of the tray 50 may have an inclination such that a vertical level thereof is gradually lowered as the tray extends toward the water-leakage detector 700.

[0160] Referring to FIG. 5A, the tray 50 may be disposed in the area A1. In this regard, the upper surface of the tray 50 may have the inclination. Therefore, a vertical level H2 of the upper surface at a side of the tray 50 facing the water-leakage detector 700 may be sized to be smaller than a vertical level H1 of the upper surface at a side of the tray 50 far away from the water-leakage detector 700.

[0161] For example, the thickness of the tray 50 may be sized to be constant as the tray 50 extends toward the water-leakage detector 700. In the case where the tray 50 of such a structure is disposed on the upper surface 42a of the bottom member 42 having the inclination, the upper surface of the tray 50 may also be configured to have the inclination such that the vertical level thereof is gradually decreased as the tray extends toward the water-leakage detector 700.

[0162] In another embodiment, the tray 50 itself may be configured so as to become gradually thinner as the tray 50 extends toward the water-leakage detector 700 so that the inclination of the upper surface of the tray 50 is steeper than the inclination of the upper surface 42a of the bottom member 42.

[0163] Due to this structure, as the water flows smoothly by gravity on and along the inclination of the upper surface of the bottom member 42, the water leaked and falling down from the condenser 300 may flow smoothly by gravity along the inclined surface of the upper surface of the tray 50. This may effectively prevent the water falling down from the condenser 300 from remaining on a specific area of the upper surface 42a of the bottom member 42 without flowing to the water-leakage detector 700.

[0164] The tray 50 may comprise a rib 51 protruding toward the condenser 300. The condenser 300 may be spaced upwardly from the upper surface of the tray 50. Therefore, the water falling down from the condenser 300 may splash back against the upper surface of the tray 50 and then flow in a direction other than the direction toward the water-leakage detector 700.

[0165] Therefore, even when the water falling down from the condenser 300 splashes back against the upper surface of the tray 50, it is necessary to guide the splashed water to flow toward the water-leakage detector 700. The rib 51 protruding upwardly from the upper surface of the tray 50 may effectively guide the water splashing back against the upper surface of the tray 50 to flow toward the water-leakage detector 700.

[0166] The water leaking from the condenser 300 may flow down on and along a surface of the condenser 300 under the surface tension and may fall down toward the tray 50 from the lower end of the condenser 300.

[0167] In this regard, a distance between the rib 51 and the water-leakage detector 700 may be sized to be greater than a distance between the lower end of the condenser 300 and the water-leakage detector 700.

[0168] Due to this structure, even when the water falling down from the lower end of the condenser 300 splashes back and flows in a direction opposite to the direction toward the water-leakage detector 700, the water may collide with a side wall of the rib 51 and thus flow back in the direction toward the water-leakage detector 700.

[0169] In an embodiment, the rib 51 protruding upwardly from the tray 50 may effectively guide water falling down from the condenser 300 and splashing back from the tray 50 to flow toward the water-leakage detector 700.

[0170] The bottom member 42 may comprise a mounting protrusion 401 protruding upwardly from an upper surface thereof. The water-leakage detector 700 may be mounted into the mounting protrusion 401.

[0171] A general shape of the mounting protrusion 401 may be formed to correspond to a shape of the water-leakage detector 700. For example, when the water-leakage detector 700 is formed in a circular shape in a plan view, the general shape of the mounting protrusion 401 may also be formed in a circular shape in a plan view.

[0172] The mounting protrusion 401 may guide a position where the water-leakage detector 700 is mounted on the mounting portion 40. Moreover, the mounting protrusion 401 may stably support the water-leakage detector 700.

[0173] The mounting protrusion 401 may comprise a protrusion 401a surrounding the water-leakage detector 700. The protrusion 401a may protrude upwardly from the upper surface 42a of the bottom member 42. A plurality of protrusions 401a may be arranged so as to be spaced apart from each other in a circular manner. The plurality of protrusions 401a may be arranged so as to surround the water-leakage detector 700.

[0174] The mounting protrusion 401 may comprise each groove 401b disposed between adjacent ones of the plurality of protrusions arranged so as to be spaced from each other. A plurality of grooves 401b may be arranged so as to be spaced apart from each other in a circular manner and may be arranged so as to surround the water-leakage detector 700. The groove 401b may serve as a passage through which the leaked water flows into the water-leakage detector 700.

[0175] The mounting protrusion 401 comprising the protrusion 401a and the groove 401b may support the water-leakage detector 700 and at the same time provide a passage through which the water flows into the water-leakage detector 700.

[0176] A portion of the water falling down from the tub 11 may not flow into the sump but leak and fall down to the mounting portion 40 under the tub 11. It is necessary to allow the portion of the water to fall down onto the tray 50 as much as possible and flow to the water-leakage detector 700. This is because the water falling onto the tray 50 is guided by the tray 50 and flows smoothly to the water-leakage detector 700.

[0177] In an embodiment, each of the condenser 300 and the tray 50 may be disposed at a position adjacent to a door and in a front area of the dishwasher.

[0178] Accordingly, the water leaking at a point where the door and the tub 11 contact each other and flowing downwardly from the tub 11 flows down along and on an inner side surface of the door, falls down onto the tray 50 disposed at a position adjacent to the door, and is guided by the tray 50 to flow toward the water-leakage detector 700.

[0179] FIG. 4B is a diagram for illustrating a dishwasher of an embodiment different from that shown in FIG. 4A.

[0180] The dishwasher may comprise a condenser supporter 53 disposed between the condenser 300 and the tray 50. The condenser supporter 53 may be detachably coupled to the tray 50.

[0181] The condenser supporter 53 may comprise a first part 531 having an upper surface formed as a curved surface corresponding to a lower surface of the condenser 300. The first part 531 may contact the lower surface of the condenser 300.

[0182] Therefore, the condenser 300 may be stably seated on the condenser supporter 53. Accordingly, the condenser 300 is supported on the condenser supporter 53 and thus a state in which the condenser 300 is suspended in the air is not established, such that the position of the condenser may be maintained without shaking even when an external impact is applied thereto.

[0183] The condenser supporter 53 may comprise a second part 532 extending downwardly from a lower surface of the first part 531. The second part 532 may connect the first part 531 and a third part 533 to each other. Therefore, the second part 532 may stably transmit a load of the condenser 300 to the third part 533. Accordingly, the condenser 300 may be stably supported on the condenser supporter 53.

[0184] The condenser supporter 53 may comprise the third part 533 connected to the second part 532. The third part 533 may be configured such that a lower surface thereof has an inclination corresponding to the inclination of the upper surface of the tray 50. The third part 533 may contact the upper surface of the tray 50.

[0185] The third part 533 may be detachably coupled to the tray 50 via a coupling means such as a screw. Therefore, when an operator intends to perform maintenance work on the condenser 300, the condenser supporter 53 may be easily removed from the tray 50. Accordingly, convenience may be provided to the operator.

[0186] The first part 531, the second part 532, and the third part 533 may be integrally formed with each other by, for example, injection molding.

[0187] Due to this structure, when the water flowing down from the condenser 300 reaches the third part 533, the water may flow smoothly on the inclined surface of the third part 533 by gravity and may flow to the water-leakage detector 700 located on the downhill side of the inclination.

[0188] The condenser supporter 53 may quietly guide the flow of the water flowing from the condenser 300 while supporting the condenser 300 thereon.

[0189] The water flowing from the condenser 300 may sequentially flow along a surface of the condenser supporter 53 contacting the lower end of the condenser 300, the first part 531, the second part 532, and the third part 533 under the surface tension. Thus, the water flowing from the condenser 300 may flow quietly along the surface of the condenser supporter 53 to the upper surface of the tray 50 without splashing.

[0190] Thus, the phenomenon that the water flowing from the condenser 300 falls down from the condenser 300 directly onto the tray 50 and thus splashes back against the tray 50, and then flows into other components near the tray 50 may be effectively prevented.

[0191] FIG. 5B is a partial enlarged view showing a portion 5B of FIG. 4B. The tray 50 may be formed to have an inclined surface 52 at an end thereof facing the water-leakage detector 700, wherein a vertical level of the inclined surface 52 is gradually lowered at the inclined surface 52 extends toward the water-leakage detector 700.

[0192] The water may flow quietly from the tray 50 along this inclined surface 52 to the water-leakage detector 700. If the end of the tray 50 is free of the inclined surface 52a but has a vertical surface right-angled relative to the upper surface 42a of the bottom member, the water may splash against the upper surface 42a due to the right-angled vertical surface.

[0193] In an embodiment, the inclined surface 52 may be formed at the end of the tray 50 facing the water-leakage detector 700. Accordingly, the phenomenon that the water splashes against the upper surface 42a due to the right-angled vertical surface may be prevented.

[0194] Accordingly, the water may escape from the tray 50 and flow quietly to the water-leakage detector 700. Therefore, the inclined surface 52 may effectively prevent the water from splashing against the upper surface 42a and flowing toward other components near the tray 50.

[0195] FIG. 6 is a plan view showing an area of the mounting portion 40 on which the water-leakage detector 700 is disposed. FIG. 7 is a perspective view showing an area of the mounting portion 40 on which the condenser 300 and the water-leakage detector 700 are disposed.

[0196] The dishwasher may comprise the compressor 500 mounted on the mounting portion 40. The compressor 500 may communicate with the condenser 300. The compressor 500 may compress the refrigerant.

[0197] The dishwasher may comprise the evaporator 600 mounted on the mounting portion 40. The evaporator 600 may communicate with the compressor 500. The refrigerant may evaporate while flowing in and along the evaporator 600.

[0198] The water leaking from the tub 11 without flowing into the sump from the tub 11 may fall down onto the compressor 500 disposed under the tub 11. Therefore, it is necessary to allow the water flowing down along the surface of the compressor 500 and collecting on the upper surface 42a of the bottom member 42 to flow to the water-leakage detector 700.

[0199] Meanwhile, the low-temperature refrigerant flows in the evaporator 600, such that the water vapor contained in ambient air may condense on the surface of the evaporator 600. Therefore, the water condensed on the surface of the evaporator 600 may flow down along the surface of the evaporator 600 and collect on the upper surface 42a of the bottom member 42.

[0200] In this regard, a draining device for draining the water condensed on the evaporator 600 to the outside may be provided. However, when water leakage occurs in such a draining device, the water leaking from the draining device may collect on the upper surface 42a of the bottom member 42.

[0201] It is necessary to allow the water flowing from the position where the evaporator 600 is disposed and then collecting on the upper surface 42a of the bottom member 42 to flow to the water-leakage detector 700.

[0202] In an embodiment, for this purpose, the water-leakage detector 700 may be configured such that a lower end thereof is positioned at a lower vertical level than that of each of a lower end of the compressor 500 and a lower end of the evaporator 600.

[0203] Accordingly, the water flowing from a position corresponding to the compressor 500 or the evaporator 600 and collecting on the upper surface 42a of the bottom member 42 may smoothly flow into the water-leakage detector 700 by gravity. Therefore, the water-leakage detector 700 may effectively detect the water leakage.

[0204] Referring to FIG. 6, the bottom member 42 may be configured such that the upper surface 42a of the bottom member 42 is divided into a plurality of pieces 42a-1, 42a-2, 42a-3, 42a-4. For example, these plurality of pieces may be formed integrally with each other.

[0205] A boundary between adjacent pieces may be formed as a valley. That is, inclinations symmetrical with each other around the boundary between the adjacent pieces may be respectively formed in the adjacent pieces.

[0206] Due to this structure, the water falling onto the upper surface 42a of the bottom member 42 may flow into the valley as the boundary between the pieces under the influence of gravity due to the inclination.

[0207] This valley may extend toward the water-leakage detector 700. Therefore, the water collected in the valley may be guided by the valley and flow smoothly to the water-leakage detector 700.

[0208] Under the above-described structure, the upper surface 42a of the bottom member 42 may have a very small amount of a flat area but have a substantial amount of an inclined area.

[0209] Due to such an inclined surface, the water collecting on the upper surface 42a of the bottom member 42 may flow smoothly toward the water-leakage detector 700. This may effectively prevent the water from pooling on a specific area of the upper surface 42a of the bottom member 42.

[0210] Accordingly, the operation performance of the water-leakage detector 700 may be improved.

[0211] FIG. 8 is a diagram for illustrating a guide bar 54 according to an embodiment.

[0212] The tray 50 may comprise a pair of guide bars 54 formed at positions spaced outwardly from both opposing sides of the lower end of the condenser 300, respectively. The guide bar 54 may protrude upwardly from the upper surface of the tray. Each of the pair of guide bars 54 may be oriented such that a longitudinal direction thereof is a direction toward the water-leakage detector 700.

[0213] The guide bar 54 may be formed in a rod shape. The guide bar 54 may protrude upwardly from the upper surface of the tray 50. A spacing between the pair of guide bars 54 may be adjusted so that an entirety of a housing defining the outer appearance of the condenser 300 excluding the piping is received in an area between the pair of guide bars 54 in the plan view of the dishwasher.

[0214] Due to this structure, the water flowing down from the condenser 300 may collide with the guide bar 54 and thus may flow toward the water-leakage detector 700 without flowing in the lateral direction of the dishwasher, that is, a direction crossing the direction toward the water-leakage detector 700.

[0215] The pair of guide bars 54 may be arranged such that a spacing therebetween becomes narrower as each of the pair of guide bars 54 extends toward the water-leakage detector 700.

[0216] Therefore, even when the water flowing from the tray 50 toward the water-leakage detector 700 leaves the guide bars 54, the flow does not spread in the lateral direction of the dishwasher, but may flow smoothly toward the water-leakage detector 700.

[0217] The present disclosure has been described above with reference to the drawings illustrated in the present disclosure. However, the present disclosure is not limited by the embodiments and drawings disclosed in the present disclosure, and it is obvious that various modifications may be made thereto by a person skilled in the art within the scope of the technical idea of the present disclosure. In addition, even when the effects according to the configuration of the present disclosure are not explicitly described and set forth while describing the embodiments of the present disclosure, it is obvious that the predictable effects therefrom should also be recognized.

Examples

Embodiment Construction

[0065]The above-mentioned purposes, features, and advantages will be described in detail later with reference to the attached drawings, so that those skilled in the art in the technical field to which the present disclosure belongs may easily practice the technical ideas of the present disclosure. In describing the present disclosure, when it is determined that a detailed description of the publicly known technology related to the present disclosure may unnecessarily obscure the gist of the present disclosure, the detailed description thereof will be omitted. Hereinafter, a preferred embodiment according to the present disclosure will be described in detail with reference to the attached drawings. In the drawings, identical reference numerals are used to indicate identical or similar components.

[0066]Although first, second, and the like are used to describe various components, these components are not limited by such terms. Such terms are only used to distinguish one component from ...

Claims

1. A dishwasher comprising:a tub configured to accommodate dishes therein;a base disposed under the tub;a mounting portion disposed in the base;a condenser mounted on the mounting portion; anda water-leakage detector mounted on the mounting portion and disposed at a position spaced apart from the condenser,wherein the condenser is configured such that a lower end of the condenser is positioned at a higher vertical level than a vertical level of a lower end of the water-leakage detector.

2. The dishwasher of claim 1, wherein the mounting portion comprises a tray disposed at a position overlapping with the condenser in an up-down direction.

3. The dishwasher of claim 2, wherein the condenser is oriented such that a longitudinal direction thereof is parallel to a longitudinal direction of the tray.

4. The dishwasher of claim 2, wherein the tray is positioned such that an upper surface thereof is spaced apart from the lower end of the condenser in an up-down direction.

5. The dishwasher of claim 2, wherein the tray comprises a rib protruding toward the condenser,wherein a distance between the rib and the water-leakage detector is sized to be greater than a distance between the lower end of the condenser and the water-leakage detector.

6. The dishwasher of claim 2, wherein the mounting portion comprises a bottom member constituting a bottom thereof,wherein an upper surface of the bottom member has an inclination such that a vertical level of at least a portion of the upper surface thereof in an area overlapping with the condenser in an up-down direction is gradually lowered as the bottom member extends toward the water-leakage detector.

7. The dishwasher of claim 6, wherein the condenser is disposed at a position overlapping an edge of the bottom member in an up-down direction,wherein the upper surface of the bottom member is configured such that a vertical level of at least a portion of the upper surface of the bottom member in the edge overlapping with the condenser in the up-down direction is gradually lowered as the bottom member extends toward the water-leakage detector.

8. The dishwasher of claim 6, wherein the tray is disposed on the upper surface of the bottom member,wherein an upper surface of the tray has an inclination such that a vertical level thereof is gradually lowered as the tray extends toward the water-leakage detector.

9. The dishwasher of claim 6, wherein the bottom member comprises a mounting protrusion protruding upwardly from the upper surface of the bottom member,wherein the water-leakage detector is mounted into the mounting protrusion.

10. The dishwasher of claim 9, wherein the mounting protrusion comprises:a plurality of protrusions protruding upwardly from the upper surface of the bottom member, wherein the plurality of protrusions are arranged so as to surround the water-leakage detector and so as to be spaced apart from each other; andeach groove defined between adjacent ones of the plurality of protrusions, wherein the groove acts as a passage through which leaked water flows into the water-leakage detector.

11. The dishwasher of claim 2, wherein each of the condenser and the tray is disposed in a front area of the dishwasher and at a position adjacent to a door.

12. The dishwasher of claim 1, comprising:a compressor mounted on the mounting portion and communicating with the condenser, wherein the compressor is configured to compress refrigerant; andan evaporator mounted on the mounting portion and communicating with the compressor, wherein the refrigerant evaporates while flowing through the evaporator,wherein the water-leakage detector is configured such that a vertical level of a lower end of the water-leakage detector is lower than a vertical level of each of a lower end of the compressor and a lower end of the evaporator.

13. The dishwasher of claim 2, comprising a condenser supporter disposed between the condenser and the tray and detachably coupled to the tray,wherein the condenser supporter supports the condenser thereon.

14. The dishwasher of claim 13, wherein the condenser supporter comprises:a first part having an upper surface formed as a curved surface conformal to a lower surface of the condenser, wherein the upper surface of the first part contacts a lower surface of the condenser;a second part extending downwardly from a lower surface of the first part; anda third part connected to the second part and contacting an upper surface of the tray, wherein the third part is formed such that a lower surface thereof has an inclination corresponding to an inclination of an upper surface of the tray.

15. The dishwasher of claim 2, wherein the tray is formed to have an inclined surface at an end thereof facing the water-leakage detector,wherein a vertical level of the inclined surface is gradually lowered as the inclined surface extends toward the water-leakage detector.

16. The dishwasher of claim 2, wherein the tray comprises a pair of guide bars protruding upwardly from an upper surface of the tray and formed at positions spaced outwardly from both opposing sides of the lower end of the condenser, respectively,wherein each of the pair of guide bars is oriented such that a longitudinal direction thereof is a direction toward the water-leakage detector.

17. The dishwasher of claim 16, wherein the pair of guide bars are arranged such that a spacing therebetween becomes narrower as each of the pair of guide bars extends toward the water-leakage detector.

18. A dishwasher comprising:a base constituting a lower portion of the dishwasher;a mounting portion disposed in the base;a condenser mounted on the mounting portion;a water-leakage detector mounted on the mounting portion and disposed at a position spaced apart from the condenser; andan evaporator mounted on the mounting portion,wherein a lower end of the condenser is positioned at a higher vertical level than a vertical level of a lower end of the water-leakage detector.

19. The dishwasher of claim 18, wherein the mounting portion comprises a tray disposed at a position overlapping with the condenser in an up-down direction.

20. The dishwasher of claim 19, wherein the mounting portion comprises a bottom member constituting a bottom of the mounting portion,wherein an upper surface of the bottom member has an inclination such that a vertical level of at least a portion of the upper surface thereof in an area overlapping with the condenser in an up-down direction is gradually lowered as the bottom member extends toward the water-leakage detector.

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