Dishwasher

Abstract

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

Description

Technical Field

[0001] This disclosure relates to a dishwasher, and more specifically, to a dishwasher equipped with a heat pump system for heating wash water. Background Technology

[0002] The content described in this section is provided only as background information about this disclosure and does not constitute prior art.

[0003] A dishwasher is a device that uses detergent and washing water to wash food residue (such as food scraps on dishes or cookware).

[0004] A typical dishwasher includes a tub that provides washing space, a rack inside the tub that holds the dishes, spray arms that spray washing water onto the rack, a reservoir that stores the washing water, and a pump that supplies the washing water stored in the reservoir to the spray arms.

[0005] The temperature of the wash water used in a dishwasher can be room temperature. However, using hot wash water can improve washing efficiency and reduce washing time. Therefore, hot wash water can be used for washing or rinsing dishes in at least a portion of the dishwasher's operation.

[0006] Heating devices used to heat washing water can be implemented as, for example, electric heaters, heat pump systems, etc.

[0007] Because heat pump systems are more energy efficient than electric heaters, there is a growing trend of incorporating heat pump systems into dishwashers for heating washing water.

[0008] A heat pump system may include a condenser configured to heat the wash water by exchanging heat between a high-temperature refrigerant and the relatively low-temperature wash water. As the wash water passes through the condenser, it can be heated to a high temperature.

[0009] Because the wash water passes through the condenser, leaks may occur at the condenser. If this leakage persists, water may drip into the lower part of the dishwasher, potentially submerging other components located in the lower compartment. This submersion could therefore cause damage to these components.

[0010] Therefore, a structure is needed that can detect whether water leakage has occurred at the condenser.

[0011] Furthermore, the continuous flow of washing water within the dishwasher can cause leaks in other components as well. Therefore, a structure capable of detecting such leaks is needed. Summary of the Invention

[0012] One technical objective of this disclosure is to provide a dishwasher with a structure capable of detecting leaks in the condenser.

[0013] Another technical objective of this disclosure is to provide a dishwasher with a structure capable of detecting leaks occurring in components other than the condenser.

[0014] The purposes of this disclosure are not limited to those described above. Other purposes and advantages of this disclosure (not mentioned) may be understood based on the following description and may be more clearly understood based on embodiments of this disclosure. Furthermore, it will be readily understood that the purposes and advantages of this disclosure may be achieved using the apparatus or combinations thereof as shown in the claims.

[0015] According to one embodiment, a dishwasher may include a bucket in which tableware is contained.

[0016] The dishwasher may include a base positioned below the drum.

[0017] The dishwasher may include a mounting section disposed in the base.

[0018] The dishwasher may include a condenser mounted on the mounting section.

[0019] The dishwasher may include a leak detector mounted on the mounting section. The leak detector may be positioned at a location spaced apart from the condenser.

[0020] The condenser can be configured such that the lower end of the condenser is positioned at a higher vertical height than the lower end of the leak detector.

[0021] The mounting portion may include a bottom member forming its base. The upper surface of the bottom member may extend in an inclined manner.

[0022] For example, the upper surface of the bottom component may have an inclination such that the vertical height of at least a portion of the area of ​​its upper surface that overlaps with the condenser in the vertical direction gradually decreases as the bottom component extends toward the leak detector.

[0023] The condenser can be positioned at the point where it overlaps with the edge of the bottom member in the vertical direction. In this position, the upper surface of the bottom member can be configured such that the vertical height of at least a portion of the edge of the upper surface of the bottom member overlapping the condenser in the vertical direction gradually decreases as the bottom member extends toward the leak detector.

[0024] The mounting section may include a tray, which is positioned at the point where it overlaps with the condenser in the vertical direction.

[0025] The condenser can be oriented so that its longitudinal direction is parallel to the longitudinal direction of the tray.

[0026] The tray can be positioned such that its upper surface is spaced apart from the lower end of the condenser in the vertical direction.

[0027] The tray may include ribs that protrude toward the condenser.

[0028] The distance between the fins and the leak detector can be set to be greater than the distance between the lower end of the condenser and the leak detector.

[0029] The bottom component may include a mounting protrusion projecting upward from the upper surface of the bottom component. A leak detector may be mounted into the mounting protrusion.

[0030] Mounting protrusions may include multiple protrusions projecting upward from the upper surface of the bottom component. These protrusions may be arranged to surround the leak detector and spaced apart from each other.

[0031] The mounting protrusions may also include recesses defined between adjacent protrusions in a plurality of protrusions. The recesses may be arranged to be spaced apart from each other. The recesses may serve as channels through which leaked water flows into the leak detector.

[0032] Each of the condenser and tray can be positioned in the front area of ​​the dishwasher and near the door.

[0033] The dishwasher may include a compressor mounted on the mounting section. The compressor may be connected to a condenser. The compressor can compress refrigerant.

[0034] The dishwasher may include an evaporator mounted on a mounting section. The evaporator may be connected to a compressor. The refrigerant may evaporate as it flows through the evaporator.

[0035] The leak detector can be configured such that the vertical height of the lower end of the leak detector is lower than the vertical height of the lower end of the compressor and the lower end of the evaporator.

[0036] The dishwasher may include a condenser support disposed between the condenser and the tray. The condenser support may be detachably attached to the tray.

[0037] The support member may include a first portion having an upper surface formed as a curved surface corresponding to or conforming to the lower surface of the condenser. The first portion may contact the lower surface of the condenser.

[0038] The support may include a second portion extending downward from the lower surface of the first portion.

[0039] The support member may include a third portion connected to the second portion. The third portion may be configured such that its lower surface has an inclination corresponding to the inclination of the upper surface of the pallet. The third portion may contact the upper surface of the pallet.

[0040] The tray can be formed with an inclined surface at its end facing the leak detector, wherein the vertical height of the inclined surface can gradually decrease as the inclined surface extends toward the leak detector.

[0041] The tray may include a pair of guide rods that project upward from the upper surface of the tray and are respectively formed at two outwardly spaced positions from two opposite sides of the lower end of the condenser. Each of the pair of guide rods may be oriented such that its longitudinal direction is toward the leak detector.

[0042] A pair of guide rods can be arranged such that the spacing between them becomes narrower as each of the pair of guide rods extends toward the leak detector.

[0043] In the dishwasher according to this disclosure, the lower end of the condenser can be positioned above the lower end of the leak detector. Therefore, water leaking from the condenser can flow smoothly into the leak detector under gravity. Thus, the leak detector can effectively detect leaks.

[0044] Furthermore, in the dishwasher according to this disclosure, the upper surface of the bottom member may have an inclination such that the vertical height of at least a portion of the upper surface of the bottom member in the area overlapping the condenser in the vertical direction gradually decreases as the bottom member extends toward the leak detector.

[0045] Due to this structure, water leaking from the condenser and falling into the water can flow smoothly along the inclined section of the upper surface of the bottom component under the influence of gravity. This effectively prevents water falling from the condenser from remaining in specific areas on the upper surface of the bottom component and from flowing to the leak detector.

[0046] Furthermore, in the dishwasher according to this disclosure, the step formed by the bottom component and the tray can be positioned in the path of the water flowing from the condenser to the leak detector.

[0047] The step can be formed by the edge of the tray. Water flowing toward the leak detector falls off this step, and its flow rate can be further increased.

[0048] Therefore, a tray with a predetermined thickness can be placed on the upper surface of the bottom component, so that water falling from the condenser onto the tray can flow more smoothly to the leak detector.

[0049] The tray can be placed on the upper surface of the bottom component. The upper surface of the tray can be inclined so that the vertical height of the tray gradually decreases as the tray extends toward the leak detector.

[0050] Furthermore, in the dishwasher according to this disclosure, the ribs protruding upward from the tray can effectively guide water falling from the condenser and splashing back onto the tray toward the leak detector.

[0051] Furthermore, in the dishwasher according to this disclosure, the lower end of the leak detector can be positioned at a vertical height lower than the vertical height of each of the lower ends of the compressor and the evaporator.

[0052] Therefore, water falling from the position corresponding to the compressor or evaporator and collecting on the upper surface of the bottom component can flow smoothly into the leak detector by gravity. Thus, the leak detector can effectively detect leaks.

[0053] While the specific details for implementing this disclosure are described below, other specific effects of this disclosure in addition to those described above will also be described. Attached Figure Description

[0054] Figure 1 This is a cross-sectional view of a dishwasher according to one embodiment.

[0055] Figure 2 This is a diagram illustrating components disposed in the base of a dishwasher according to one embodiment.

[0056] Figure 3 This is a plan view showing a mounting section and components provided on the mounting section according to one embodiment.

[0057] Figure 4a It is shown Figure 3 Partial 4-4' sectional view.

[0058] Figure 4b It is shown that... Figure 4a The diagram shows dishwashers with different implementations.

[0059] Figure 5a It is shown Figure 4a A magnified view of a portion of part 5A.

[0060] Figure 5b It is shown Figure 4b A magnified view of part 5B.

[0061] Figure 6 This is a plan view showing the area where the leak detector is installed.

[0062] Figure 7 This is a perspective view showing the area where the condenser and leak detector are installed.

[0063] Figure 8 This is a diagram illustrating a guide rod according to one embodiment. Detailed Implementation

[0064] The above-described objects, features, and advantages will now be described in detail with reference to the accompanying drawings, so that those skilled in the art to which this disclosure pertains can readily practice the technical ideas of this disclosure. In describing this disclosure, detailed descriptions of well-known technologies related to this disclosure will be omitted where it is determined that such detailed descriptions may unnecessarily obscure the essence of this disclosure. Hereinafter, preferred embodiments according to this disclosure will be described in detail with reference to the accompanying drawings. In the drawings, the same reference numerals are used to denote the same or similar components.

[0065] Although terms like "first," "second," etc., are used to describe various components, these components are not limited by these terms. Such terms are only used to distinguish one component from another, and unless otherwise specified, the first component can also be the second component.

[0066] Throughout this document, unless otherwise stated, each part may be singular or plural.

[0067] As used herein, singular expressions include plural expressions unless the context clearly indicates otherwise. In this application, terms such as “consisting of” or “comprising” should not be construed as necessarily including all the various components or steps described herein, but should be construed as being able to exclude some components or steps and include additional components or steps.

[0068] Throughout this disclosure, unless otherwise specified, “A and / or B” means A, B, or A and B, and unless otherwise specified, “C to D” means C including C to D including D.

[0069] As used here, terms such as “upper,” “lower,” “side,” etc., are used to refer to parts of the dishwasher, orientation, etc., in the state in which the dishwasher is typically installed.

[0070] Figure 1 This is a cross-sectional view of a dishwasher according to one embodiment. The dishwasher according to one embodiment may include a housing defining the appearance of the dishwasher, a tub 11 for receiving dishes to be washed, a door 20 disposed on the front surface of the tub 11 for opening and closing the tub 11, and a reservoir 100 disposed below the tub 11 for storing washing water therein.

[0071] The dishwasher may also include a plurality of spray arms 13, 14 and 15 disposed in a tub 11 and spraying washing water, a filter 110 disposed in a reservoir 100 and filtering the washing water sprayed from at least one of the plurality of spray arms 13, 14 and 15 and recovering it into the reservoir 100, a washing pump 150 for conveying the washing water stored in the reservoir 100, and a switching valve 130 for controlling the selective flow of the washing water conveyed to at least one of the plurality of spray arms 13, 14 and 15 under the operation of the washing pump 150.

[0072] The tub 11 can be formed into a hexahedral shape with an open front surface, and can have a washing chamber 12a defined therein. A connecting hole is formed in the bottom 12b of the tub 11, through which washing water flows into the storage tank 100. In the washing chamber 12a, a plurality of supports 16 and 17 are provided to accommodate the object being washed. The plurality of supports 16 and 17 may include a lower support 16 disposed in the lower region of the washing chamber 12a and an upper support 17 disposed in the upper region of the washing chamber 12a. The lower support 16 and the upper support 17 are arranged to be spaced apart from each other in the vertical direction and can slide in the forward direction of the tub 11 and extend from the tub 11.

[0073] Multiple spray arms 13, 14, and 15 are arranged vertically. The multiple spray arms 13, 14, and 15 may include: a lower spray arm 13, which is located at the lowest end and sprays washing water upward toward the lower support 16; an upper spray arm 14, which is located on top of the lower spray arm 13 and sprays washing water upward toward the upper support 17; and a top spray arm 15, which is located at the upper end of the washing chamber 12a and on top of the upper spray arm 14 and sprays washing water downward.

[0074] Multiple spray arms 13, 14, and 15 are supplied with washing water from the washing pump 150 via multiple spray arm connection flow paths 18, 19, and 21. The multiple spray arm connection flow paths 18, 19, and 21 may include 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.

[0075] Washing water can be supplied from the washing pump 150 to the lower spray arm 13, upper spray arm 14 and top spray arm 15 respectively through the lower spray arm connecting flow path 18, the upper spray arm connecting flow path 19 and the top spray arm connecting flow path 21.

[0076] The storage tank 100 can be located below the bottom 12b of the tub 11 and can collect washing water. The filter 110 can filter out contaminants in the washing water flowing from the tub 11 to the storage tank 100.

[0077] Wash water sprayed by multiple spray arms 13, 14 and 15 falls to the bottom 12b of the tub 11 along with contaminants deposited on and removed from the object being washed. Thus, the contaminant-containing wash water can be filtered while flowing through the filter 110, which is in communication with the bottom 12b of the tub 11, so that contaminant-free wash water can be stored in the storage tank 100.

[0078] During the washing operation, the washing water can wash the tableware contained in the supports 16 and 17, while circulating through the storage tank 100, spray arms 13, 14 and 15, the bucket 11 and the filter 110.

[0079] Wash pump 150 supplies wash water stored in reservoir 100 to at least one of a plurality of spray arms 13, 14 and 15. Wash pump 150 may include a wash motor that generates rotational force, and an impeller rotated by the wash motor to deliver wash water. Wash pump 150 may be connected to switching valve 130 and wash water supply path 180.

[0080] When the washing pump 150 is working, the washing water stored in the storage tank 100 can be introduced into the washing pump 150 through the water collection flow path 170, and then delivered to the switching valve 130 through the washing water supply flow path 180.

[0081] The switching valve 130 selectively supplies wash water delivered by 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 can also selectively connect the wash water supply path 180 to at least one of the plurality of spray arm connection paths 18, 19, and 21.

[0082] The storage tank 100 is connected to a water supply path 23 through which washing water supplied from an external water source flows. A water supply valve 22 for controlling the flow rate of washing water supplied from the external water source can be installed in the water supply path 23. The water supply valve 22 controls the supply of washing water from the external water source to the storage tank 100. When the water supply valve 22 is open, washing water supplied from the external water source can be introduced into the storage tank 100 through the water supply path 23.

[0083] The storage tank 100 can be connected to the drain passage 24 for discharging washing water to the outside of the dishwasher. A drain pump 25 can be installed in the drain passage 24 for discharging the washing water in the storage tank 100 through the drain passage 24. When the drain pump 25 is operating, the washing water stored in the storage tank 100 can be discharged from the housing to the outside through the drain passage 24.

[0084] A heating device for heating the washing water can be installed in the storage tank 100 or the washing pump 150. The heating device can be, for example, an electric heater, a heat pump system, etc.

[0085] In one implementation, a heat pump system can be used to heat the wash water. The heat pump system will be described first below.

[0086] A heat pump system is a system that pumps heat from a low-temperature environment to a high-temperature environment. This heat pumping can be achieved using, for example, a compressor 500. In one embodiment, the heat pump system can be implemented using a so-called two-phase flow refrigeration cycle, which increases the temperature of the refrigerant by compressing the refrigerant, which is flowing in two phases, into a gaseous state using the compressor 500.

[0087] A heat pump system for performing a two-phase refrigeration cycle may include a compressor 500, a condenser 300, an expander, and an evaporator 600. These components are connected to each other via pipes. As the refrigerant flows and circulates through these components, its phase and temperature change, allowing the refrigerant to absorb heat from its surroundings or dissipate heat to its surroundings.

[0088] The refrigerant can be introduced into the compressor 500 in a low-temperature gaseous state. The refrigerant can be compressed in the compressor 500. From the outlet of the compressor 500, the refrigerant can be introduced into the condenser 300 in a high-temperature and high-pressure superheated gaseous state.

[0089] The refrigerant and the wash water can flow separately in the condenser 300. The refrigerant can be introduced into the condenser 300 and exchange heat with the wash water, and the wash water can be heated when it receives heat from the refrigerant.

[0090] The condenser 300 can be formed in various shapes. In addition, the condenser 300 can be provided with various flow paths through which refrigerant and washing water flow respectively.

[0091] The refrigerant can change from a superheated gaseous state to a saturated state where liquid and gas coexist, while maintaining the theoretically same pressure in the condenser 300.

[0092] The refrigerant flows into the condenser 300 in a superheated state, transferring heat to the wash water and causing the refrigerant temperature to drop. Then, when the refrigerant reaches saturation, the proportion of liquid can be gradually increased while the refrigerant theoretically remains at a constant temperature. During this liquefaction process, the refrigerant releases a large amount of latent heat of liquefaction, and the wash water can be heated upon receiving this heat.

[0093] The refrigerant from the condenser 300 can be introduced into the expansion device in a saturated liquid or subcooled liquid state. Such an expansion device can be implemented as, for example, an expansion valve or a capillary tube device.

[0094] The refrigerant can undergo adiabatic expansion, meaning its enthalpy is theoretically constant within the expansion device. During this expansion, a portion of the refrigerant evaporates, thus reducing its pressure. As a portion of the refrigerant evaporates to dissipate the heat of the evaporation into the surrounding environment, the overall temperature of the refrigerant can decrease. In other words, the refrigerant can be introduced into the evaporator 600 under the low temperature and low pressure conditions obtained while flowing through the expansion device.

[0095] When refrigerant is introduced into evaporator 600, the proportion of gas in the refrigerant gradually increases within evaporator 600, while simultaneously absorbing heat from the relatively high-temperature environment. In evaporator 600, the proportion of gas in the refrigerant can gradually increase, while theoretically maintaining the same pressure and temperature for the refrigerant.

[0096] The refrigerant discharged from the evaporator 600 can be introduced into the compressor 500 in the presence of a small amount of liquid or in a slightly superheated state. The refrigerant introduced into the compressor 500 can circulate through the compressor 500, condenser 300, expansion unit, and evaporator 600, while repeating the above process.

[0097] Typically, refrigeration systems utilize the principle that refrigerant absorbs heat from the evaporator 600. One embodiment of a heat pump system can utilize the heat released from the refrigerant in the condenser 300.

[0098] In a heat pump system, heat exchange occurs between the high-temperature refrigerant in condenser 300 and the relatively low-temperature wash water, thus heating the wash water. The high-temperature wash water heated by condenser 300 makes it easier to wash or rinse dishes than wash water at room temperature.

[0099] In this respect, such a heat pump system does not always need to operate while the dishwasher is running the wash or rinse process. For example, when using wash water at room temperature to perform the wash or rinse, the compressor 500 does not work, allowing room temperature water to be sprayed onto the dishes without heating the wash water.

[0100] Even when the compressor 500 stops and the wash water is not heated, the wash water can still flow through the condenser 300 and circulate throughout the dishwasher.

[0101] In another embodiment, a bypass flow path can be defined to bypass the condenser 300. Therefore, when the compressor 500 stops, the wash water can flow along the bypass flow path to bypass the condenser, thereby improving the performance of the condenser 300 and extending its lifespan.

[0102] Figure 2 This is a diagram illustrating components disposed in the base 30 of a dishwasher according to an embodiment. Components constituting the heat pump system may be disposed, for example, below the tub 11.

[0103] The dishwasher may include a base 30 disposed below the tub 11. A heat pump system and other devices for driving the dishwasher may be disposed in the base 30. The base 30 has an internal space defined therein below the tub 11, and this internal space may be used as a machine room in which various mechanical components are disposed.

[0104] The dishwasher may include a mounting portion 40 on which a condenser 300 is mounted. The mounting portion 40 may be disposed in a base 30. The mounting portion 40 may typically be formed in the shape of a plate. Various components may be attached to the upper surface of the mounting portion 40.

[0105] The mounting part 40 can be disposed inside the base 30. The mounting part 40 can be easily removed from the base 30. For example, the mounting part 40 can be mounted to the base 30 using a fastening device. The fastening device can be loosened, and the mounting part 40 can be removed as follows: Figure 2 It moves in the sliding manner indicated by the arrow in the diagram, and can therefore be removed from the base 30.

[0106] When the mounting part 40 is guided by a guide rail formed on the inner surface of the base 30, the mounting part can slide to extend from the base 30.

[0107] The condenser 300 can be mounted on the mounting section 40. The refrigerant and washing water can flow separately in the condenser 300. The refrigerant can condense in the condenser 300. The refrigerant can be condensed to release its latent heat of condensation, allowing the washing water to be heated by the heat released from the refrigerant.

[0108] Although not shown, the expansion valve can be installed at a suitable location in the mounting section 40. Since the size of the expansion valve is smaller than the size of each of the other components constituting the heat pump system, the expansion value can be appropriately set in the spare space of the mounting section 40.

[0109] The dishwasher may include a water softener device 41 for generating soft water. The water softener device 41 may be mounted on the mounting section 40. Soft water is water containing very little or no minerals (such as calcium and magnesium). When using soft water to wash dishes, the washing efficiency of the dishes can be improved, and the life of the dishes can be increased. Therefore, it is necessary to use soft water to wash dishes as needed.

[0110] In one embodiment, wash water can be introduced into a water softener device 41, and the water can be converted into soft water using the water softener device 41, which can then be used for washing dishes. However, the water softener device 41 is not an essential component of a dishwasher.

[0111] The water softener device 41 can be connected to the storage tank 100 via a pipe. Therefore, the water introduced into the water softener device 41 can be softened by the water softener device 41. The softened water discharged from the water softener device 41 can be introduced into the storage tank 100 and used for washing dishes.

[0112] The dishwasher may include a reservoir 100 in which washing water is stored. The reservoir 100 may be mounted on the mounting section 40. The reservoir 100 may be positioned below the tub 11.

[0113] The washing water stored in the tank 100 can flow under the operation of the washing pump 150, and can wash the tableware contained in the tub 11 while circulating through the tank 100, the washing pump 150, the multiple spray arms 13, 14 and 15 and the tub 11.

[0114] In this respect, the washing water is heated by a heat pump system and sprayed at high temperature from multiple spray arms 13, 14 and 15 to wash or rinse the dishes contained in the tub 11, thereby improving washing efficiency.

[0115] Additionally, a washing pump 150 can be mounted on the mounting section 40. Furthermore, a compressor 500 can be mounted on the mounting section 40. The compressor 500 can compress the refrigerant. Additionally, an evaporator 600 can be mounted on the mounting section 40.

[0116] As described above, the compressor 500, condenser 300, expansion device and evaporator 600 constituting the heat pump system are connected to each other by pipes, and the refrigerant can undergo a phase change, so that its temperature and pressure change as it circulates through each component constituting the heat pump system.

[0117] Meanwhile, when the washing pump 150 is working, the washing water can flow sequentially through the washing pump 150, the condenser 300, the multiple spray arms 13, 14 and 15, the tank 11 and the storage tank 100, and can be reintroduced into the washing pump 150, and the above components can be circulated again.

[0118] Washing water passes through the condenser 300, which may cause leakage within the condenser 300. If this leakage persists, water may fall onto the mounting section 40, causing other components mounted on the mounting section 40 to be submerged. Therefore, damage to the components due to submersion may occur.

[0119] Therefore, a structure is needed that can detect whether water leakage has occurred in the condenser 300.

[0120] Furthermore, since washing water is constantly flowing within the dishwasher, leaks can occur in other components as well, and leaked water may fall onto the mounting section 40. A structure capable of detecting such leaks is needed. This will be described below with reference to the accompanying drawings.

[0121] Figure 3 This is a plan view showing the mounting portion 40 and the components provided on the mounting portion 40 according to one embodiment. Figure 3 In the accompanying diagrams, the direction of water flow is indicated by dashed arrows.

[0122] Figure 4a It is shown Figure 3 Partial 4-4' sectional view. Figure 5a It is shown Figure 4a A magnified view of a portion of part 5A.

[0123] According to one embodiment, a dishwasher may include a tub 11 in which tableware is contained.

[0124] The dishwasher may include a base 30 disposed below the tub 11.

[0125] The dishwasher may include a mounting part 40 disposed in the base 30.

[0126] The dishwasher may include a condenser 300 mounted on the mounting portion 40. The condenser 300 may be disposed on the upper surface of the mounting portion 40. Therefore, water leaking from the condenser 300 may be collected on the bottom of the mounting portion 40, that is, on the upper surface 42a of the bottom member 42.

[0127] At least a portion of the water leaking from some of the components constituting the dishwasher (such as the tub 11, reservoir, water softener device 41, etc.) can also be collected at the bottom of the mounting section 40.

[0128] The dishwasher may include a leak detector 700 mounted on the mounting section 40. The leak detector 700 may be located at a position spaced apart from the condenser 300.

[0129] Therefore, water leaking from the condenser 300 can flow from the upper surface 42a of the bottom member 42 and into the leak detector 700. Thus, the leak detector 700 can detect leaks in the dishwasher.

[0130] The leak detector 700 can be implemented as, for example, a floating leak detector. The floating leak detector 700 can be provided with a sensing element that floats on the water or is expanded by the water when water flows into the floating leak detector 700.

[0131] When water flows into the leak detector 700, the sensing component can rise or expand in response to the water. Therefore, the leak detector 700 can detect leaks in the dishwasher.

[0132] The sensitivity of the sensing component can be adjusted. Therefore, the leak detector 700 can detect a leak when the amount of water leaking from the dishwasher exceeds a predetermined amount.

[0133] When only a very small amount of water leaks, it won't hinder the dishwasher's operation or cause inconvenience to the user. On the contrary, dealing with such situations is cumbersome and annoying.

[0134] Therefore, it is appropriate to properly adjust the sensitivity of the sensing element provided in the leak detector 700 so that the leak detector 700 only detects a leak when a predetermined amount or more of water leaks.

[0135] The leak detector 700 can be electrically connected to the dishwasher's controller. Therefore, the controller can receive information from the leak detector 700 regarding whether a leak has occurred. When a leak is detected, the controller can send an alarm to notify the user.

[0136] The condenser 300 can be configured such that its lower end is positioned at a higher vertical height than the lower end of the leak detector 700. For example, the condenser 300 can be arranged to be upwardly spaced from the upper surface 42a of the bottom member 42 of the mounting portion 40.

[0137] Due to this structure, the lower end of the condenser 300 can be suspended in the air, thus being spaced apart from the upper surface 42a of the bottom member 42. Therefore, the lower end of the condenser 300 can be positioned at a higher vertical height than the lower end of the leak detector 700.

[0138] Water leaking from the dishwasher components and collecting on the upper surface 42a of the bottom member 42 can flow along the upper surface 42a of the bottom member 42 and into the lower end of the leak detector 700. Therefore, the leak detector 700 can detect leaks.

[0139] Therefore, in order for the water leaking from the condenser 300 to flow smoothly to the lower end of the leak detector 700 under the action of gravity, the difference between the lower end of the condenser 300 and the vertical height of the leak detector 700 is required.

[0140] In one embodiment, the lower end of the condenser 300 can be positioned vertically above the lower end of the leak detector 700. Therefore, water leaking from the condenser 300 can flow smoothly into the leak detector 700 under the influence of gravity. Thus, the leak detector 700 can effectively detect leaks.

[0141] The mounting portion 40 may include a bottom member 42 forming its bottom. The upper surface 42a of the bottom member 42 may extend in an inclined manner.

[0142] For example, the upper surface 42a of the bottom member 42 may have an inclination such that the vertical height of at least a portion of the area in which it overlaps with the condenser 300 in the vertical direction gradually decreases as the bottom member 42 extends toward the leak detector 700.

[0143] For example, such as Figure 4a As shown, the upper surface 42a of the bottom member 42 may have an inclination in region A1 of the upper surface 42a of the bottom member 42, which belongs to the front region of the dishwasher, corresponding to the position where the condenser 300 is installed.

[0144] Due to this structure, water leaking and falling from the condenser 300 can flow smoothly along the inclined surface of the upper surface 42a of the bottom member 42 under the action of gravity. This effectively prevents water falling from the condenser 300 from remaining on a specific area of ​​the upper surface 42a of the bottom member 42 without flowing to the leak detector 700.

[0145] The condenser 300 can be positioned at a location corresponding to the edge of the bottom member 42. In this respect, the upper surface 42a of the bottom member 42 can be configured such that the vertical height of at least a portion of its edge region overlapping the condenser 300 in the vertical direction gradually decreases as the bottom member 42 extends toward the leak detector 700.

[0146] The condenser 300, located in the component mounted on the mounting section 40, experiences the most active flow of washing water. Therefore, the possibility of water leakage from the condenser is particularly high. Consequently, the condenser 300 can be positioned in the edge region of the mounting section 40, and thus can be spaced apart from other components. Furthermore, splashing of water falling from the condenser 300 onto other components can be effectively suppressed. Therefore, the intrusion of water from components other than the condenser 300, particularly electronic components such as printed circuit boards, can be effectively prevented.

[0147] The mounting section 40 may include a tray 50, which is positioned at a location where it overlaps with the condenser 300 in the vertical direction.

[0148] The condenser 300 can be oriented such that its longitudinal direction is parallel to the longitudinal direction of the tray 50. For example, the condenser 300 can be oriented such that its longitudinal direction is the transverse direction of the dishwasher. Correspondingly, the tray 50 can also be oriented such that its longitudinal direction is the transverse direction of the dishwasher.

[0149] Because of this structure, the tray 50 can completely overlap the condenser 300 in the vertical direction. Therefore, all the water falling from the condenser 300 can be collected in the tray 50.

[0150] The tray 50 can be positioned such that its upper surface is spaced apart from the lower end of the condenser 300 in the vertical direction. Therefore, the condenser 300 can be suspended to be spaced apart from the upper surface of the tray 50.

[0151] Tray 50 can typically be configured as a plate with a predetermined thickness. Tray 50 can be used to receive water falling from condenser 300.

[0152] Since the tray 50 has a predetermined thickness, the vertical height of its upper surface can be higher than the vertical height of the upper surface 42a of the bottom member 42.

[0153] The tray 50 can be detachably connected to the bottom member 42 by means of a coupling device such as screws. Therefore, when the tray 50 is removed from the bottom member 42, only the tray 50 can be pulled out or extended from the mounting part 40 and the base 30.

[0154] This structure facilitates the maintenance of tray 50 and condenser 300.

[0155] like Figure 4a and Figure 5a As shown, the step formed by the bottom member 42 and the tray 50 can be positioned in the path of the water flowing from the condenser 300 to the leak detector 700.

[0156] Such a step can be formed by the edge of the tray 50. Water flowing toward the leak detector 700 can fall off this step, further increasing its flow rate.

[0157] Therefore, a tray 50 with a predetermined thickness can be disposed on the upper surface 42a of the bottom member 42, so that water falling from the condenser 300 onto the tray 50 can flow more smoothly to the leak detector 700.

[0158] The tray 50 may be disposed on the upper surface 42a of the bottom member 42. The upper surface of the tray 50 may be inclined such that its vertical height gradually decreases as the tray extends toward the leak detector 700.

[0159] See Figure 5a The tray 50 can be positioned in area A1. At this point, the upper surface of the tray 50 can be inclined. Therefore, the vertical height H2 of the upper surface of the tray 50 on the side facing the leak detector 700 can be smaller than the vertical height H1 of the upper surface of the tray 50 on the side away from the leak detector 700.

[0160] For example, the thickness of the tray 50 can be constant as it extends toward the leak detector 700. In the case where the tray 50 of this structure is positioned on the upper surface 42a of the inclined bottom member 42, the upper surface of the tray 50 can also be configured to have an inclination such that its vertical height gradually decreases as the tray extends toward the leak detector 700.

[0161] In another embodiment, the tray 50 itself may be configured to gradually thin as the tray 50 extends toward the leak detector 700, such that the slope of the upper surface of the tray 50 is steeper than the slope of the upper surface 42a of the bottom member 42.

[0162] Due to this structure, when water flows smoothly on the upper surface of the bottom member 42 under gravity and along its incline, water leaking from the condenser 300 and falling can flow smoothly along the inclined surface of the upper surface of the tray 50 under gravity. This effectively prevents water falling from the condenser 300 from remaining in a specific area on the upper surface 42a of the bottom member 42 and flowing to the leak detector 700.

[0163] The tray 50 may include ribs 51 projecting toward the condenser 300. The condenser 300 may be spaced upward from the upper surface of the tray 50. Therefore, water falling from the condenser 300 may splash back onto the upper surface of the tray 50 and then flow in a direction different from that toward the leak detector 700.

[0164] Therefore, even when water falling from the condenser 300 splashes back onto the upper surface of the tray 50, the splashed water must be guided toward the leak detector 700. The ribs 51 protruding upward from the upper surface of the tray 50 can effectively guide the water splashed back onto the upper surface of the tray 50 toward the leak detector 700.

[0165] Water leaking from condenser 300 can flow down the surface of condenser 300 under the action of surface tension, and can fall from the lower end of condenser 300 toward tray 50.

[0166] In this respect, the distance between rib 51 and leak detector 700 can be set to be greater than the distance between the lower end of condenser 300 and leak detector 700.

[0167] Because of this structure, even when water falling from the lower end of the condenser 300 splashes back and flows in the opposite direction to the direction toward the leak detector 700, the water may collide with the sidewall of the rib 51 and thus flow back in the direction toward the leak detector 700.

[0168] In one embodiment, the ribs 51 protruding upward from the tray 50 can effectively guide water falling from the condenser 300 and splashing back from the tray 50 toward the leak detector 700.

[0169] The bottom member 42 may include a mounting protrusion 401 projecting upward from its upper surface. The leak detector 700 may be mounted in the mounting protrusion 401.

[0170] The general shape of the mounting protrusion 401 can be formed to correspond to the shape of the leak detector 700. For example, when the leak detector 700 is formed as a circle in the plan view, the overall shape of the mounting protrusion 401 can also be formed as a circle in the plan view.

[0171] The mounting protrusion 401 guides the leak detector 700 to its position on the mounting section 40. Furthermore, the mounting protrusion 401 provides stable support for the leak detector 700.

[0172] Mounting protrusion 401 may include a protrusion 401a surrounding the leak detector 700. The protrusion 401a may project upwards from the upper surface 42a of the bottom member 42. Multiple protrusions 401a may be arranged in a circular pattern, spaced apart from each other. Multiple protrusions 401a may be arranged to surround the leak detector 700.

[0173] The mounting protrusion 401 may include a recess 401b disposed between adjacent protrusions in a plurality of protrusions arranged spaced apart from each other. The plurality of recesses 401b may be arranged to be circularly spaced apart from each other and may be arranged to surround the leak detector 700. The recesses 401b may serve as channels through which leaked water flows into the leak detector 700.

[0174] The mounting protrusion 401, including the protrusion 401a and the groove 401b, can support the leak detector 700 and at the same time provide a channel for water to flow into the leak detector 700.

[0175] Some of the water falling from the bucket 11 will not flow into the storage tank, but will leak and fall onto the mounting part 40 below the bucket 11. It is necessary to ensure that as much water as possible falls onto the tray 50 and flows to the leak detector 700. This is because the water falling onto the tray 50 is guided by the tray 50 and flows smoothly to the leak detector 700.

[0176] In one embodiment, each of the condenser 300 and the tray 50 may be located adjacent to the door and in the front area of ​​the dishwasher.

[0177] Therefore, the water that leaks at the point where the door and the bucket 11 come into contact with each other and flows downward from the bucket 11 flows down along the inner surface of the door and onto the tray 50 located adjacent to the door, and is guided by the tray 50 to flow toward the leak detector 700.

[0178] Figure 4b It is shown that... Figure 4a The diagram shows different embodiments of the dishwasher.

[0179] The dishwasher may include a condenser support 53 disposed between the condenser 300 and the tray 50. The condenser support 53 may be detachably connected to the tray 50.

[0180] The condenser support 53 may include a first portion 531 having an upper surface formed as a curved surface corresponding to the lower surface of the condenser 300. The first portion 531 may contact the lower surface of the condenser 300.

[0181] Therefore, the condenser 300 can be stably mounted on the condenser support 53. Thus, the condenser 300 is supported on the condenser support 53, and therefore there is no state where the condenser 300 is suspended in the air, so that even when an external impact is applied to the condenser 300, the position of the condenser can be maintained without shaking.

[0182] The condenser support 53 may include a second portion 532 extending downward from the lower surface of the first portion 531. The second portion 532 connects the first portion 531 and the third portion 533 to each other. Therefore, the second portion 532 can stably transfer the load of the condenser 300 to the third portion 533. Thus, the condenser 300 can be stably supported on the condenser support 53.

[0183] The condenser support 53 may include a third portion 533 connected to the second portion 532. The third portion 533 may be configured such that its lower surface has an inclination corresponding to the inclination of the upper surface of the tray 50. The third portion 533 may contact the upper surface of the tray 50.

[0184] The third part 533 can be detachably connected to the tray 50 via a coupling device such as screws. Therefore, when the operator wants to perform maintenance work on the condenser 300, the condenser support 53 can be easily removed from the tray 50. This provides convenience for the operator.

[0185] The first part 531, the second part 532 and the third part 533 can be integrally formed with each other, for example, by injection molding.

[0186] Because of this structure, when water flowing down from the condenser 300 reaches the third section 533, the water can flow smoothly on the inclined surface of the third section 533 under the action of gravity, and can flow to the leak detector 700 located on the inclined downhill side.

[0187] The condenser support 53 can quietly guide the water flow from the condenser 300, while supporting the condenser 300 thereon.

[0188] Water flowing out of the condenser 300 can flow sequentially along the surface of the condenser support 53, which is in contact with the lower end of the condenser 300, the first part 531, the second part 532, and the third part 533, under the action of surface tension. Therefore, water flowing out of the condenser 300 can flow smoothly along the surface of the condenser support 53 to the upper surface of the tray 50 without splashing.

[0189] Therefore, it can effectively prevent water flowing out of condenser 300 from falling directly onto tray 50 and splashing back onto tray 50, and then flowing into other components near tray 50.

[0190] Figure 5b It is shown Figure 4b A partial enlarged view of part 5B. The tray 50 may be formed to have an inclined surface 52 at its end facing the leak detector 700, wherein the vertical height of the inclined surface 52 gradually decreases as the inclined surface 52 extends toward the leak detector 700.

[0191] Water can flow smoothly from the tray 50 along the inclined surface 52 to the leak detector 700. If the end of the tray 50 does not have an inclined surface 52a, but has a vertical surface perpendicular to the upper surface 42a of the bottom member, water may splash onto the upper surface 42a due to the perpendicular vertical surface.

[0192] In one embodiment, an inclined surface 52 may be formed at the end of the tray 50 facing the leak detector 700. This prevents water from splashing onto the upper surface 42a due to the right-angled vertical surface.

[0193] Therefore, water can escape from tray 50 and flow quietly to leak detector 700. Thus, the inclined surface 52 can effectively prevent water from splashing onto the upper surface 42a and flowing toward other components near tray 50.

[0194] Figure 6 This is a plan view showing the area where the mounting section 40 of the leak detector 700 is installed. Figure 7 This is a perspective view showing the area of ​​the mounting section 40 where the condenser 300 and the leak detector 700 are installed.

[0195] The dishwasher may include a compressor 500 mounted on the mounting section 40. The compressor 500 may be in communication with the condenser 300. The compressor 500 may compress refrigerant.

[0196] The dishwasher may include an evaporator 600 mounted on the mounting section 40. The evaporator 600 may be in communication with a compressor 500. Refrigerant may evaporate as it flows into and along the evaporator 600.

[0197] Water leaking from the tank 11 without flowing into the storage tank may fall onto the compressor 500 located below the tank 11. Therefore, it is necessary to allow water to flow down the surface of the compressor 500 and collect on the upper surface 42a of the bottom member 42 to flow to the leak detector 700.

[0198] Meanwhile, the low-temperature refrigerant flows in the evaporator 600, causing water vapor contained in the surrounding air to condense on the surface of the evaporator 600. Therefore, the water condensed on the surface of the evaporator 600 can flow downwards along the surface of the evaporator 600 and collect on the upper surface 42a of the bottom member 42.

[0199] In this regard, a drain device can be provided to drain the water condensed on the evaporator 600 to the outside. However, when leakage occurs in such a drain device, the water leaking from the drain device may collect on the upper surface 42a of the bottom member 42.

[0200] It is necessary to allow water to flow out from the location where the evaporator 600 is set, and then collect on the upper surface 42a of the bottom component 42 to flow to the leak detector 700.

[0201] In one embodiment, for this purpose, the leak detector 700 may be configured such that its lower end is positioned at a lower vertical height than the lower end of the compressor 500 and the lower end of the evaporator 600.

[0202] Therefore, water flowing out from the position corresponding to the compressor 500 or evaporator 600 and collected on the upper surface 42a of the bottom member 42 can smoothly flow into the leak detector 700 by gravity. Therefore, the leak detector 700 can effectively detect leaks.

[0203] See Figure 6 The bottom member 42 can 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 can be integrally formed with each other.

[0204] The boundary between adjacent pieces can form a valley. That is, sloping sections that are symmetrical about each other can be formed in adjacent pieces around the boundary between adjacent pieces.

[0205] Due to this structure, water falling on the upper surface 42a of the bottom member 42 can flow into the valley that serves as the boundary between these pieces under the influence of gravity caused by the inclination.

[0206] The valley can extend toward the leak detector 700. Therefore, water collected in the valley can be guided by the valley and flow smoothly to the leak detector 700.

[0207] In the above structure, the upper surface 42a of the bottom member 42 may have a very small flat area, but a fairly large inclined area.

[0208] Due to this sloping surface, water collected on the upper surface 42a of the bottom member 42 can flow smoothly toward the leak detector 700. This effectively prevents water from accumulating in specific areas of the upper surface 42a of the bottom member 42.

[0209] Therefore, the operational performance of the leak detector 700 can be improved.

[0210] Figure 8 This is a diagram illustrating a guide rod 54 according to one embodiment.

[0211] The tray 50 may include a pair of guide rods 54, which are respectively formed at two outwardly spaced positions from two opposite sides of the lower end of the condenser 300. The guide rods 54 may project upward from the upper surface of the tray. Each of the pair of guide rods 54 may be oriented such that its longitudinal direction is toward the leak detector 700.

[0212] The guide rod 54 can be formed in the shape of a rod. The guide rod 54 can protrude upward from the upper surface of the tray 50. In the plan view of the dishwasher, the spacing between the pair of guide rods 54 can be adjusted so that the entire housing (excluding pipes) defining the external appearance of the condenser 300 is accommodated in the area between the pair of guide rods 54.

[0213] Because of this structure, water flowing down from the condenser 300 may collide with the guide rod 54 and thus may flow toward the leak detector 700 instead of flowing in the lateral direction of the dishwasher, that is, in a direction that intersects with the direction toward the leak detector 700.

[0214] The pair of guide rods 54 can be arranged such that the spacing between the pair of guide rods 54 narrows as each of the pair of guide rods 54 extends toward the leak detector 700.

[0215] Therefore, even when water flowing from tray 50 toward leak detector 700 leaves guide rod 54, the water flow will not spread in the lateral direction of the dishwasher, but can flow smoothly toward leak detector 700.

[0216] The present disclosure has been described above with reference to the accompanying drawings. However, the present disclosure is not limited to the embodiments and drawings disclosed herein, and it will be apparent to those skilled in the art that various modifications can be made to it within the scope of the technical concept of the present disclosure. Furthermore, even if the effects of the configuration according to the present disclosure are not explicitly described and explained while describing the embodiments of the present disclosure, it should be understood that the predictable effects are thus attributable to it.

Claims

1. A dishwasher, the dishwasher comprising: A bucket, the bucket being configured to hold tableware in the bucket; A base, wherein the base is disposed below the barrel; The mounting part is disposed in the base; A condenser, which is mounted on the mounting portion; as well as A leak detector is mounted on the mounting part and positioned at a distance from the condenser. The condenser is configured such that its lower end is positioned at a higher vertical height than the lower end of the leak detector.

2. The dishwasher according to claim 1, wherein, The mounting part includes a tray, which is positioned at a location where it overlaps with the condenser in the vertical direction.

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

4. The dishwasher according to claim 2, wherein, The tray is positioned such that the upper surface of the tray is spaced apart from the lower end of the condenser in the vertical direction.

5. The dishwasher according to claim 2, wherein, The tray includes ribs projecting toward the condenser. The distance between the rib and the leak detector is set to be greater than the distance between the lower end of the condenser and the leak detector.

6. The dishwasher according to claim 2, wherein, The mounting portion includes a bottom component that forms the bottom of the mounting portion. The upper surface of the bottom component has an inclination such that the vertical height of at least a portion of the upper surface of the bottom component in the area overlapping with the condenser in the vertical direction gradually decreases as the bottom component extends toward the leak detector.

7. The dishwasher according to claim 6, wherein, The condenser is positioned at the point where it overlaps with the edge of the bottom component in the vertical direction. The upper surface of the bottom member is configured such that the vertical height of at least a portion of the upper surface of the bottom member at the edge overlapping the condenser along the vertical direction gradually decreases as the bottom member extends toward the leak detector.

8. The dishwasher according to claim 6, wherein, The tray is disposed on the upper surface of the bottom member. The upper surface of the tray has an inclination, such that the vertical height of the tray gradually decreases as the tray extends toward the leak detector.

9. The dishwasher according to claim 6, wherein, The bottom member includes a mounting protrusion projecting upward from the upper surface of the bottom member. The leak detector is installed in the mounting protrusion.

10. The dishwasher according to claim 9, wherein, The mounting protrusion includes: A plurality of protrusions projecting upward from the upper surface of the bottom member, wherein the plurality of protrusions are arranged to surround the leak detector and spaced apart from each other; and Each groove is defined between adjacent protrusions of the plurality of protrusions, wherein the groove serves as a channel through which leaked water flows into the leak detector.

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