Dishwasher

Abstract

The present disclosure relates to a dishwasher. The dishwasher according to an embodiment of the present disclosure, comprises: a tub forming a washing space for accommodating dishes; and a moisture-absorption drying module disposed on a side surface of the tub. The moisture-absorption drying module includes: a moisture absorbent for absorbing moisture in the washing space; a blowing fan disposed above the moisture absorbent and forming an air flow downward; and a regeneration heater disposed between the moisture absorbent and the blowing fan.

Description

dishwasher

[0001] The present disclosure relates to a dishwasher, and more specifically, to a dishwasher equipped with a desiccant.

[0002] A dishwasher is a home appliance that sprays washing water to remove dirt, such as food residue, stuck to dishes, plates, and cutlery, such as spoons, chopsticks, and forks, and washes dishes and cutlery (hereinafter referred to as "dish to be washed").

[0003] Dishwashers enhance user convenience and prevent the growth of microorganisms by performing a drying process after washing. There are various drying methods available for dishwashers, such as hot air drying and moisture-wicking drying.

[0004] Conventionally, a drying module containing a desiccant was placed mainly in the machine room below the washing space to dry the washing space of a dishwasher. However, this structure caused a problem where the space in the machine room became cramped.

[0005] Due to the limited space in the machine room, there are problems such as reduced efficiency in component placement, increased noise and vibration generated inside the machine room, and reduced long-term durability caused by inefficient heat dissipation.

[0006] Meanwhile, a structure has been attempted in which a drying module is placed on the side of the tub to secure space for the machine room. U.S. Patent Publication No. 11812911 (hereinafter referred to as the "911 invention") discloses a dishwasher in which a drying module including a desiccant and a fan is placed on the side of the tub.

[0007] However, the drying module of the above 911 invention had a problem in that it could not include a heater for regenerating the desiccant due to the limited space on the side of the tub. In this case, it may be difficult to regenerate the desiccant that absorbs moisture in the washing space.

[0008] In addition, the 911 invention attempted a structure to regenerate the absorbent using heated washing water, but there is a problem in that the regeneration of the absorbent does not occur smoothly because the heating temperature of the washing water does not reach the regeneration temperature of the absorbent.

[0009] As a result, a problem may occur where items are not completely dried during the dishwasher's drying cycle. This can cause inconvenience to users and increase the risk of microbial proliferation.

[0010] On the other hand, in the case of the moisture-absorbing drying method, the absorbent material that has absorbed moisture must be periodically regenerated, and there is a problem in that a large amount of energy is consumed in this process.

[0011] In addition, there is a problem where the total operating time of the dishwasher is extended because it takes a long time to regenerate the desiccant.

[0012] The technical problem of the present disclosure is to provide a dishwasher capable of solving the various problems of the aforementioned prior art.

[0013] Another objective of the present disclosure is to provide a dishwasher that can save space in the machine room.

[0014] Another objective of the present disclosure is to provide a dishwasher in which the regeneration of the absorbent in the moisture-absorbing drying module disposed on the side of the tub is smoothly achieved.

[0015] Another objective of the present disclosure is to provide a dishwasher comprising a moisture-absorbing drying module that can maintain drying performance while occupying less space on the side of the tub.

[0016] Another objective of the present disclosure is to provide a dishwasher capable of effectively drying the washing space.

[0017] Another objective of the present disclosure is to provide a dishwasher capable of efficiently drying dishes without deforming them.

[0018] Another objective of the present disclosure is to provide a dishwasher in which the drying of dishes or the washing space is performed quickly.

[0019] Another objective of the present disclosure is to provide a dishwasher that reduces the energy required for the regeneration of the absorbent in the moisture-absorbing drying module.

[0020] Another objective of the present disclosure is to provide a dishwasher that reduces the energy required for the regeneration of a desiccant.

[0021] Another objective of the present disclosure is to provide a dishwasher with improved drying efficiency.

[0022] Another objective of the present disclosure is to provide a dishwasher in which humid air is rapidly discharged.

[0023] Another objective of the present disclosure is to provide a dishwasher that consumes less power.

[0024] Another objective of the present disclosure is to provide a dishwasher that reduces the time required for the regeneration of the absorbent and the drying of dishes.

[0025] The problems of the present invention are not limited to those mentioned above, and other unmentioned problems will be clearly understood by those skilled in the art from the description below.

[0026] To solve the above problem, a dishwasher according to an embodiment of the present disclosure comprises: a tub forming a washing space for accommodating dishes; and a moisture-absorbing drying module disposed on the side of the tub.

[0027] The above moisture absorption drying module comprises: a desiccant that absorbs moisture in the washing space; a blower fan positioned above the desiccant and forming downward airflow; and a regeneration heater positioned between the desiccant and the blower fan.

[0028] The above moisture-absorbing drying module forms: an intake port communicating the washing space and the blower fan; and a discharge port communicating the absorbent and the washing space, and the intake port and the discharge port may be disposed on the same side of the tub.

[0029] The above dishwasher may further include: a first rack placed in the washing space and on which dishes are placed; and a second rack placed on top of the first rack.

[0030] The above suction port may be formed on the second rack.

[0031] The discharge port may be formed between the first rack and the second rack.

[0032] The above dishwasher further includes a door for opening and closing the washing space, and in the drying process for drying dishes placed in the washing space, the door can be opened after operating the blower fan.

[0033] The above dishwasher can operate the blower fan for a certain period of time after opening the door.

[0034] The dishwasher may further include: a door for opening and closing the washing space; and a door fan disposed in the door and discharging air from the washing space to the outside of the tub.

[0035] The above dishwasher further comprises: a first rack disposed in the washing space and on which dishes are disposed; and a second rack disposed above the first rack, and the door may include a door inlet formed above the second rack and communicating the washing space and the door fan.

[0036] The above door inlet may be formed adjacent to the other side of the tub facing one side of the tub where the moisture-absorbing drying module is placed.

[0037] In the drying process of drying dishes placed in the washing space, the above dishwasher may stop the blower fan after operating it for a certain period of time and operate the door fan for a certain period of time.

[0038] The above dishwasher can open the door after the door fan operates.

[0039] The above dishwasher can operate the blower fan for a certain period of time after opening the door.

[0040] The door may be positioned at the front of the washing space, and the moisture-absorbing drying module may be positioned at the rear surface of the tub.

[0041] The dishwasher further includes a water jacket disposed on a first side of the tub and condensing moisture in the washing space, and the moisture-absorbing drying module may be disposed on a second side of the tub opposite to the first side.

[0042] The above regenerative heater may be a PTC (Positive Temperature Coefficient) heater or a coil heater.

[0043] The above-mentioned hygroscopic agent may include zeolite and ceramic paper.

[0044] To solve the above problem, a dishwasher according to an embodiment of the present disclosure comprises: a tub forming a washing space for accommodating dishes; a door for opening and closing the washing space; a door fan disposed in the door and discharging air from the washing space to the outside of the tub; and a moisture-absorbing drying module disposed on one side of the tub and drying the washing space.

[0045] The above dishwasher opens the door after operating the moisture-absorbing drying module and the door fan during the drying process of drying dishes placed in the washing space.

[0046] The above dishwasher can operate the moisture absorption drying module for a certain period of time after opening the door.

[0047] The above dishwasher can operate the door fan after operating the moisture absorption drying module before opening the door.

[0048] The above dishwasher can stop the above moisture absorption drying module after operating it for a certain period of time and operate the above door fan for a certain period of time.

[0049] The above door fan can operate for a shorter period than the above moisture absorption drying module.

[0050] The above dishwasher can operate the moisture absorption drying module and the door fan simultaneously before opening the door.

[0051] The above dishwasher can operate the moisture absorption drying module after operating the door fan before opening the door.

[0052] The above dishwasher further comprises: a first rack disposed in the washing space and on which dishes are disposed; and a second rack disposed above the first rack, and the door may further comprise a door inlet formed above the first rack and the second rack and communicating with the washing space and the door fan.

[0053] The operating time of the above door fan may be within 5 minutes.

[0054] To solve the above problem, a control method for a dishwasher according to an embodiment of the present disclosure includes the step of operating a moisture-absorbing drying module to dry a washing space inside a tub where dishes are placed.

[0055] The control method of the above dishwasher includes the step of operating a door fan positioned in a door that opens and closes the tub and discharges air from the washing space to the outside; and the step of opening the door.

[0056] The control method of the dishwasher described above may further include the step of operating the moisture-absorbing drying module to dry the washing space after the step of opening the door.

[0057] The above moisture-absorbing drying module can operate for a longer period after the step of opening the door than before the step of opening the door.

[0058] In the step of operating the moisture-absorbing drying module, the moisture-absorbing drying module is stopped after operating for a certain period of time, and the step of operating the door fan can be performed after the operation of the moisture-absorbing drying module is stopped.

[0059] The step of operating the door fan may be shorter than the step of operating the moisture absorption drying module.

[0060] The step of operating the moisture absorption drying module and the step of operating the door fan can be performed simultaneously.

[0061] The step of operating the door fan may be performed before the step of operating the moisture absorption drying module.

[0062] Specific details of other embodiments are included in the detailed description and drawings.

[0063] According to the dishwasher of the present disclosure, there is one or more of the following effects.

[0064] The moisture absorption and drying module is positioned on the side of the tub, allowing space in the machine room to be secured.

[0065] The desiccant, blower fan, and regeneration heater of the moisture absorption drying module are arranged vertically, allowing the moisture absorption drying module to occupy less space on the side of the tub.

[0066] Since the desiccant includes zeolite and ceramic paper, the drying performance of the moisture-absorbing drying module can be maintained while occupying less space on the side of the tub.

[0067] The intake and discharge ports of the moisture-absorbing drying module are formed on the same side of the tub, allowing the washing space to be effectively dried.

[0068] The discharge port of the moisture-absorbing drying module is formed between the first rack and the second rack, so that tableware can be dried efficiently without deformation.

[0069] During the drying process, the door opens after the blower fan operates for a certain period, and the fan operates again to rapidly dry dishes or the washing area. In addition, the energy required for the regeneration of the desiccant can be reduced.

[0070] By opening the door after operating the moisture absorption drying module and the door fan, humid air can be discharged to the outside, and the amount of moisture absorbed by the desiccant can be reduced, thereby reducing the energy required for desiccant regeneration.

[0071] By operating the moisture-absorbing drying module for a certain period of time after opening the door, air circulation within the washing space can be promoted and drying efficiency can be improved.

[0072] By operating the door fan after operating the moisture absorption drying module, the humid air inside the dishwasher can be quickly expelled.

[0073] By stopping the moisture absorption drying module after a certain period of time and operating the door fan for a certain period of time, the amount of moisture absorbed by the absorbent can be reduced and power consumption reduced.

[0074] By operating the moisture absorption drying module to dry the washing space, operating the door fan to expel air from the washing space to the outside, and opening the door, moisture in the washing space can be quickly expelled to the outside, and the time required for the regeneration of the absorbent and drying of dishes can be shortened.

[0075] The effects of the present disclosure are not limited to those mentioned above, and other unmentioned effects will be clearly understood by those skilled in the art from the description in the claims.

[0076] FIG. 1 is a perspective view of a dishwasher according to one embodiment of the present disclosure.

[0077] FIG. 2 is a schematic diagram showing the interior of a dishwasher according to a first embodiment of the present disclosure.

[0078] FIG. 3 is a schematic diagram showing the interior of a dishwasher according to a second embodiment of the present disclosure.

[0079] FIG. 4 is a schematic diagram showing the interior of a dishwasher according to a third embodiment of the present disclosure.

[0080] FIG. 5 is a schematic diagram showing the door of a dishwasher open according to the first embodiment of the present disclosure.

[0081] FIG. 6 is a schematic diagram showing the interior of a dishwasher according to a fourth embodiment of the present disclosure.

[0082] FIG. 7 is a flowchart showing the process of a dishwasher according to one embodiment of the present disclosure.

[0083] FIG. 8 is a flowchart showing the drying process of a dishwasher according to the first, second, or third embodiment of the present disclosure.

[0084] FIG. 9 is a flowchart showing the drying process of a dishwasher according to the fourth embodiment of the present disclosure.

[0085] FIG. 10 is a schematic diagram of the interior of a dishwasher according to the fifth embodiment of the present disclosure, viewed from the side.

[0086] FIG. 11 shows a door liner and an exhaust device of a dishwasher according to the fifth embodiment of the present disclosure.

[0087] FIG. 12 is a schematic diagram showing a moisture absorption drying module and a door fan of a dishwasher according to the fifth embodiment of the present disclosure.

[0088] Figure 13 illustrates the operation of the moisture absorption and drying module of Figure 12.

[0089] Figure 14 illustrates the door fan of Figure 12 when it is in operation.

[0090] FIG. 15 shows the door of a dishwasher according to the fifth embodiment of the present disclosure opened during the drying process.

[0091] FIG. 16 is a flowchart showing the process of a dishwasher according to the fifth embodiment of the present disclosure.

[0092] FIG. 17 is a flowchart illustrating a control method for a dishwasher according to one embodiment of the present disclosure.

[0093] FIG. 18 is a flowchart illustrating a control method for a dishwasher according to another embodiment of the present disclosure.

[0094] FIG. 19 is a flowchart illustrating a control method for a dishwasher according to another embodiment of the present disclosure.

[0095] FIG. 20 shows the amount of steam discharged according to the door fan operation time of a dishwasher according to the fifth embodiment of the present disclosure.

[0096] Hereinafter, embodiments disclosed in this specification will be described in detail with reference to the attached drawings. Identical or similar components regardless of drawing symbols are given the same reference number, and redundant descriptions thereof will be omitted.

[0097] The suffixes "module" and "part" used for components in the following description are assigned or used interchangeably solely for the ease of drafting the specification, and do not inherently possess distinct meanings or roles.

[0098] In addition, when describing the embodiments disclosed in this specification, if it is determined that a detailed description of related prior art may obscure the essence of the embodiments disclosed in this specification, such detailed description is omitted. Furthermore, the attached drawings are intended only to facilitate understanding of the embodiments disclosed in this specification, and the technical concept disclosed in this specification is not limited by the attached drawings; it should be understood that they include all modifications, equivalents, and substitutions that fall within the concept and technical scope of this disclosure.

[0099] Terms including ordinal numbers, such as first, second, etc., may be used to describe various components, but said components are not limited by said terms. These terms are used solely for the purpose of distinguishing one component from another.

[0100] When it is stated that one component is "connected" or "connected" to another component, it should be understood that while it may be directly connected or connected to that other component, there may also be other components in between. On the other hand, when it is stated that one component is "directly connected" or "directly connected" to another component, it should be understood that there are no other components in between.

[0101] Singular expressions include plural expressions unless the context clearly indicates otherwise.

[0102] In this application, terms such as “comprising” or “having” are intended to specify the existence of the features, numbers, steps, actions, components, parts, or combinations thereof described in the specification, and should be understood as not precluding the existence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof.

[0103] The directional indications of Up (U), Down (D), Front (F), Back (R), Left (Le), and Right (Ri) shown in the drawings are for convenience of explanation only and do not limit the technical concepts disclosed in this specification.

[0104] Referring to FIG. 1, the external appearance of a dishwasher (1) according to one embodiment of the present disclosure can be seen.

[0105] The dishwasher (1) may include a case (10) that forms the exterior. For example, the case (10) may have a rectangular shape. As a result, the dishwasher (1) can be efficiently placed in various spaces, such as under a desk, under a sink, or in a utility room.

[0106] The case (10) can form a space inside. A tub (20, see FIG. 2) can be installed inside the case (10). This is explained in detail in FIG. 2.

[0107] The door (30) can be positioned at the front of the case (10). The door (30) can open and close the interior space of the case (10) from the front.

[0108] On the outer side of the door (30), a handle (31) for opening the door (30) and a control panel (32) for controlling the dishwasher (1) may be provided.

[0109] The display (33) can be placed on the control panel (32). The display (33) can visually display information regarding the current operating status of the dishwasher (1), etc.

[0110] The button section (34) may be placed on the control panel (32). The button section (34) may include a selection button for inputting a user's course selection operation, a power button for inputting to control the power of the dishwasher (1), etc.

[0111] Referring to FIG. 2, the interior of a dishwasher (1) according to the first embodiment of the present disclosure can be seen.

[0112] The dishwasher (1) includes a tub (20). The tub (20) may be formed in a box shape with an open front. The tub (20) may be referred to as a washing tank.

[0113] The tub (20) can be formed from a metal plate that is resistant to high temperature and moisture. For example, the tub (20) can be formed from a plate made of a stainless steel material through press processing.

[0114] A washing space (21) may be formed inside the tub (20). The tub (20) may accommodate items to be washed, such as bowls, cutlery, and other cooking utensils, in the washing space (21). Unless otherwise noted, items to be washed will be referred to as tableware.

[0115] A storage unit (50) may be placed in the washing space (21). The storage unit (50) may include a first rack (51), a second rack (52), and a top rack (53). The storage unit (50) may be detachably placed in the washing space (21) inside the tub (20). Tableware may be placed in or accommodated in the storage unit (50).

[0116] The dishwasher (1) may include a spray unit (60). The spray unit (60) may include a first spray arm (61), a second spray arm (62), and a top nozzle (63). The spray unit (60) may be installed adjacent to the storage unit (50). The spray unit (60) may spray washing water for washing dishes.

[0117] A drive unit (40) for supplying, collecting, circulating, and draining washing water for washing dishes may be placed below the tub (20).

[0118] The driving unit (40) may include a sump (41) for storing washing water, a sump cover (42) for separating the sump (41) from the tub (20), a water supply unit (43) for supplying washing water to the sump (41) from an external water source, a drainage unit (44) for discharging washing water from the sump (41) to the outside, a washing pump (45) for supplying washing water to the sump (41), and a supply path (46).

[0119] The sump cover (42) may be positioned above the sump (41). The sump cover (42) may be provided with a plurality of recovery holes (not shown) for recovering the washing water sprayed into the washing space (21) into the sump (41).

[0120] That is, the washing water that was sprayed toward the dishes in the washing space (21) or washed the dishes falls to the bottom of the washing space (21) and can be recovered back into the sump (41) through the sump cover (42).

[0121] The water supply unit (43) can supply washing water from an external water source to the washing space (21) of the tub (20). The water introduced from the external water source flows sequentially through the sump (41), washing pump (45), and supply channel (46) and can be used for washing and rinsing in the washing space (21) of the tub (20).

[0122] A washing pump (45) may be positioned on one side of the sump (41). The washing pump (45) may pressurize washing water and supply it to the spray unit (60). One end of the washing pump (45) may be connected to the sump (41). The other end of the washing pump (45) may be connected to the supply channel (46).

[0123] The washing pump (45) may include an impeller (451), a washing motor (453), etc. As a result, when power is supplied to the washing motor (453), the impeller (451) rotates, and the washing water in the sump (41) is pressurized and then supplied to the spraying unit (60) through the supply path (46).

[0124] Meanwhile, the supply channel (46) can selectively supply washing water supplied from the washing pump (45) to the spraying unit (60).

[0125] For example, the supply channel (46) may be connected to the first injection arm (61), the second injection arm (62), and the top nozzle (63), and may include a switching valve (465) that selectively opens and closes the flow of cleaning water to the first injection arm (61), the second injection arm (62), and the top nozzle (63).

[0126] Depending on the control of the switching valve (465), cleaning water may be sprayed sequentially or simultaneously from the first spray arm (61), the second spray arm (62), and the top nozzle (63).

[0127] Meanwhile, the spray unit (60) can spray washing water toward the tableware placed in the storage unit (50).

[0128] For example, the first spray arm (61) can spray washing water onto dishes placed on the first rack (51). The second spray arm (62) can spray washing water onto the first rack (51) or onto the second rack (52) placed above the first rack (51). The top nozzle (63) can spray washing water onto the second rack (52) or onto the top rack (53) placed above the second rack (52).

[0129] The first spray arm (61) and the second spray arm (62) can be rotatably positioned in the washing space (21) of the tub (20). As a result, the first spray arm (61) and the second spray arm (62) can rotate and spray washing water toward the dishes in the storage unit (50).

[0130] For example, the first spray arm (61) can rotate at the bottom of the first rack (51) and spray cleaning water toward the first rack (51). The second spray arm (62) can rotate between the first rack (51) and the second rack (52) and spray cleaning water.

[0131] The first rack (51), the second rack (52), and the top rack (53) can be withdrawn from the washing space (21) through the open front of the tub (20).

[0132] In this drawing, a first rack (51) located at the bottom of the tub (20) and capable of accommodating relatively large tableware, a second rack (52) placed on top of the first rack (51) and capable of storing medium-sized tableware, and a top rack (53) located at the top of the tub (20) and capable of storing small tableware are shown.

[0133] The present invention is not limited thereto, but is described based on an embodiment of a dishwasher (1) equipped with three storage compartments (50) as illustrated.

[0134] Guide rails (not shown) may be provided on both side walls of the tub (20) so that the first rack (51), the second rack (52), and the top rack (53) can be pulled out through the open front of the tub (20). For example, the guide rails may include a first rail, a second rail, and a top rail.

[0135] Meanwhile, the door (30) can open and close the open front of the tub (20). A hinge portion (not shown) may be provided at the bottom of the door (30). As a result, the door (30) can be opened by rotating with the hinge portion as a rotation axis.

[0136] A detergent supply device (not shown) for supplying detergent into the interior of the tub (20) may be further provided on the inner side of the door (30).

[0137] Meanwhile, the tub (20) may include a bottom surface (25), a rear surface (28), a top surface (29), a first side surface (26, see FIG. 3), and a second side surface (27, see FIG. 3). The washing space (21) may be formed by being surrounded by the bottom surface (25), the rear surface (28), the top surface (29), the first side surface (26), and the second side surface (27).

[0138] The bottom surface (25) can be positioned above the sump cover (42). The bottom surface (25) can be positioned at an angle toward the sump cover (42). Thus, the wash water falling onto the bottom surface (25) can be guided toward the sump (41).

[0139] The rear surface (28) may be a surface facing the door (30) when the door (30) seals the washing space (21). The rear surface (28) may be positioned vertically. As a result, the washing water in the washing space (21) can flow along the rear surface (28) to the bottom surface (25).

[0140] The upper surface (29) can form the ceiling of the tub (20). The upper surface (29) can face the bottom surface (25). A top nozzle (63) can be positioned on one side of the upper surface (29).

[0141] The dishwasher (1) may include a machine room (22). The machine room (22) may be formed between the tub (20) and the case (10). The machine room (22) may be located below the tub (20). The machine room (22) may be a space where a sump (41), a wash pump (45), piping, and other parts are placed.

[0142] The dishwasher (1) includes a moisture-absorbing drying module (80). The moisture-absorbing drying module (80) is positioned on the side of the tub (20). For example, in the case of the dishwasher (1) according to the first embodiment of the present disclosure as shown in the drawing, the moisture-absorbing drying module (80) may be positioned on the rear side (28) of the tub (20).

[0143] Meanwhile, in this drawing, the moisture-absorbing drying module (80) is shown protruding backward, but this is to emphasize the placement of the moisture-absorbing drying module (80), and the moisture-absorbing drying module (80) is placed in the space between the tub (20) and the case (10).

[0144] The moisture absorption drying module (80) includes a blower fan (83), a regeneration heater (84), and a desiccant (85). The blower fan (83) is placed above the desiccant (85), and the regeneration heater (84) is placed between the desiccant (85) and the blower fan (83).

[0145] The blower fan (83) can be placed above the regenerative heater (84) and the desiccant (85). As a result, when the blower fan (83) forms an airflow, the airflow resistance of the air flowing through the intake port (81) to the moisture-absorbing drying module (80) can be minimized.

[0146] The regeneration heater (84) can be placed on top of the absorbent (85). As a result, when the blower fan (83) forms an airflow in the downward direction, high-temperature air is introduced into the absorbent (85), allowing the regeneration of the absorbent (85) to occur smoothly.

[0147] Therefore, when arranged in the order of the blower fan (83), the regeneration heater (84), and the desiccant (85) from the top, the moisture-absorbing drying module (80) can absorb moisture most efficiently and can be easily regenerated.

[0148] In addition, as the blower fan (83), regeneration heater (84), and desiccant (85) are arranged vertically, the moisture-absorbing drying module (80) can be efficiently positioned in the space between the side of the tub (20) and the case (10) without reducing the cleaning space (21) formed by the tub (20).

[0149] Furthermore, since the moisture-absorbing drying module (80) is not placed in the machine room (22), the machine room (22) can be secured more widely. This increases the efficiency of component placement within the machine room (22), reduces noise and vibration generated in the machine room (22), and allows heat to be discharged smoothly, thereby increasing the long-term durability of the dishwasher (1).

[0150] The blower fan (83) can circulate air. The blower fan (83) can form an airflow downward. As a result, air sucked in from the cleaning space (21) inside the tub (20) can flow toward the absorbent (85).

[0151] In this case, moisture formed on the inner wall of the moisture-absorbing drying module (80) is guided toward the absorbent (85), thereby improving drying efficiency.

[0152] The intake port (81) can connect the washing space (21) and the blower fan (83). The discharge port (82) can connect the desiccant (85) and the washing space (21). As a result, when the blower fan (83) is operated, the air in the washing space (21) can be drawn into the moisture-absorbing drying module (80) through the intake port (81) and discharged back into the washing space (21) through the discharge port (82).

[0153] Meanwhile, as the temperature of the air rises, its density may decrease. As a result, high-temperature air may be concentrated in the upper part of the washing space (21).

[0154] Additionally, moisture in the air can condense upon contact with the side of the tub (20), and since the condensed water flows toward the bottom surface (25), the air above the washing space (21) can have a relatively higher humidity than the air below.

[0155] The intake port (81) may be formed on the second spray arm (62). The intake port (81) may be formed on the second rack (52). In this case, the moisture-absorbing drying module (80) can draw in relatively hot and humid air within the washing space (21).

[0156] Accordingly, when the suction port (81) is formed above the second injection arm (62) or above the second rack (52), the moisture-absorbing drying module (80) can absorb a larger amount of moisture than when the suction port (81) is formed in other locations.

[0157] The intake port (81) may be formed above the bottom of the second rack (52). The intake port (81) may be formed between the bottom and top of the second rack (52).

[0158] In this case, when the blower fan (83) is operated, the humid air adjacent to the dishes placed on the second rack (52) can be immediately drawn into the intake port (81). Therefore, the drying of the dishes placed on the second rack (52) can be promoted.

[0159] The intake port (81) may be formed above the top of the second rack (52). The intake port (81) may be formed between the top of the second rack (52) and the bottom of the top rack (53). In this case, the air flowing into the intake port (81) may not interfere with the tableware placed on the second rack (52) or the top rack (53).

[0160] Accordingly, the flow rate of air passing through the moisture-absorbing drying module (80) can be increased, and the amount of moisture absorbed through the moisture-absorbing drying module (80) can be increased.

[0161] The discharge port (82) may be positioned below the intake port (81). The intake port (81) and the discharge port (82) may be positioned on the same side of the tub (20). When the intake port (81) and the discharge port (82) are positioned on the same side of the tub (20), the air discharged from the discharge port (82) is prevented from being immediately sucked into the intake port (81), and the air within the washing space (21) is circulated, enabling effective moisture absorption and drying.

[0162] The intake port (81) and the discharge port (82) located on the same side of the tub (20) may be spaced apart in the left-right or front-back directions.

[0163] For example, if the intake port (81) and the discharge port (82) are positioned on the rear surface of the tub (20), the intake port (81) and the discharge port (82) may be spaced apart in the left and right directions.

[0164] As another example, if the intake port (81) and the discharge port (82) are formed on the first side (26) or the second side (27) of the tub (20), the intake port (81) and the discharge port (82) may be spaced apart in the front-rear direction.

[0165] As a result, the air flow formed by the moisture-absorbing drying module (80) can circulate throughout the entire washing space (21), and the path of air flowing through the washing space (21) from the discharge port (82) to the intake port (81) can be extended. Therefore, the high-temperature air discharged from the discharge port (82) promotes the evaporation of moisture within the washing space (21), thereby improving drying efficiency.

[0166] The discharge port (82) may be formed between the first rack (51) and the second rack (52). The discharge port (82) may be formed between the top of the first rack (51) and the bottom of the second rack (52). In this case, the air discharged from the discharge port (82) may not interfere with the tableware placed in the first rack (51) or the second rack (52).

[0167] Therefore, the deformation of the tableware due to the high-temperature air discharged from the discharge port (82) can be prevented. In addition, the air discharged from the discharge port (82) circulates through the washing space (21) and promotes the evaporation of residual moisture within the washing space (21), thereby allowing drying to occur smoothly.

[0168] Air introduced into the moisture-absorbing drying module (80) can pass through the absorbent (85). Air that has passed through the absorbent (85) can be discharged back into the washing space (21) through the discharge port (82).

[0169] Meanwhile, the absorbent (85) can absorb moisture contained in the air in the washing space (21) during the drying process, and can be regenerated by releasing the absorbed moisture into the air during the washing or rinsing process.

[0170] Accordingly, the absorbent (85) may include a reversible absorbent material so as to absorb moisture or release absorbed moisture depending on the operating temperature range.

[0171] For example, the hygroscopic agent (85) may be a composition comprising any one of aluminum oxide, silicon oxide, silica gel, alumina silica, or zeolite, or a combination of two or more selected from these.

[0172] Air passes between a plurality of absorbents (85) provided in the form of particles and can absorb moisture by coming into contact with the absorbents (85), or absorb moisture discharged from the absorbents (85).

[0173] Therefore, the desiccant (85) can act as a flow resistance to the airflow. To minimize such flow resistance, the particle size of the desiccant (85) can be selected so that pores are effectively formed and optimal moisture absorption efficiency is secured.

[0174] Meanwhile, the absorbent (85) may be a pad-type zeolite comprising zeolite and ceramic paper.

[0175] The pad-type zeolite may be a desiccant (85) in which the zeolite is coated onto ceramic paper. In the case of the pad-type zeolite, the desiccant (85) is uniformly distributed, so the adsorption efficiency can be improved. In addition, the diffusion rate of water molecules can be fast due to the large surface area.

[0176] In other words, pad-type zeolites have a smaller particle size than conventional zeolites, allowing water molecules to easily permeate; this improves moisture absorption performance and allows the regeneration temperature to be lower than before.

[0177] Therefore, in the case of a pad-type zeolite containing zeolite and ceramic paper, it may be desirable to use it in a limited space on the side of the tub (20).

[0178] The regeneration heater (84) can heat air to dry and regenerate the absorbent (85) during the regeneration process of the absorbent (85). The regeneration heater (84) can be heated by receiving power. When the moisture absorption drying module (80) is carrying out the moisture absorption process, power may not be supplied to the regeneration heater (84).

[0179] Meanwhile, the blower fan (83) can continuously operate during both the regeneration process and the absorption process of the absorbent (85) and form an air flow.

[0180] The regenerative heater (84) may be a PTC (Positive Temperature Coefficient) heater or a coil heater. A PTC heater or a coil heater may occupy a relatively smaller volume compared to a conventional sheath heater.

[0181] As a result, the moisture absorption drying module (80) can include a regeneration heater (84) even in a relatively narrow space on the side of the tub (20), and the efficiency of moisture absorption drying can be increased.

[0182] In addition, there is an advantage of saving energy compared to the conventional technology in which the absorbent (85) is regenerated with high-temperature washing water because the regeneration heater (84) cannot be placed on the side of the tub (20).

[0183] Meanwhile, although not shown, a thermostat for detecting whether the regeneration heater (84) is overheated and a temperature sensor for detecting the temperature of the air may be placed at a location adjacent to the regeneration heater (84).

[0184] The drying process through the moisture-absorbing drying module (80) and the regeneration process of the moisture absorbent (85) are explained.

[0185] After the washing of the dishes is finished, the washing water can be discharged outside the dishwasher (1) through the drain (44). Afterwards, any remaining moisture in the washing space (21) can be dried through the moisture absorption drying module (80).

[0186] When the blower fan (83) is operated, air in the washing space (21) is introduced into the moisture-absorbing drying module (80) through the intake port (81) and can be discharged into the washing space (21) through the discharge port (82). At this time, moisture in the air passing through the desiccant (85) can be absorbed by the desiccant (85).

[0187] Therefore, when the blower fan (83) operates continuously and circulates air within the washing space (21), drying of the washing space (21) and dishes can proceed. At this time, the regeneration heater (84) may not operate.

[0188] Meanwhile, the regeneration of the absorbent (85) can be carried out during a washing or rinsing cycle. For example, when washing dishes, the blower fan (83) and the regeneration heater (84) operate, and high-temperature air can flow through the absorbent (85). At this time, the temperature of the air may be higher than the regeneration temperature of the absorbent (85). Therefore, the air passing through the absorbent (85) can absorb moisture from the absorbent (85).

[0189] The air discharged into the washing space (21) after absorbing moisture from the absorbent (85) can be condensed by the low-temperature washing water. Therefore, the moisture contained in the air is discharged to the outside of the dishwasher (1) through the drain (44), and the absorbent (85) can be regenerated.

[0190] Referring to FIG. 3, the interior of a dishwasher (1b) according to a second embodiment of the present disclosure can be seen.

[0191] The tub (20) may include a first side (26) and a second side (27). The first side (26) and the second side (27) may be arranged vertically. The first side (26) and the second side (27) may face each other. For example, the first side (26) may form the right side of the tub (20), and the second side (27) may form the left side of the tub (20).

[0192] In the case of the dishwasher (1b) according to the second embodiment, the moisture-absorbing drying module (80) may be placed on the first side (26) of the tub (20).

[0193] Meanwhile, in this drawing, the moisture-absorbing drying module (80) is shown protruding to the right, but this is to emphasize the placement of the moisture-absorbing drying module (80), and the moisture-absorbing drying module (80) is placed in the space between the tub (20) and the case (10).

[0194] Unlike the drawing, the moisture-absorbing drying module (80) may be placed on the second side (27). The moisture-absorbing drying module (80) may also be placed on the upper surface (29). The moisture-absorbing drying module (80) may be placed at various locations on the side of the tub (20).

[0195] In this way, the moisture-absorbing drying module (80) can be placed at various locations on the side of the tub (20) to secure space in the machine room (22).

[0196] Meanwhile, the arrows indicated by dotted lines in this drawing represent the direction of air flow. The actual direction of air flow within the cleaning space (21) may differ from this drawing.

[0197] Other configurations are identical to the dishwasher (1) according to the first embodiment, so the illustration and detailed description thereof are omitted.

[0198] Referring to FIG. 4, the interior of a dishwasher (1c) according to the third embodiment of the present disclosure can be seen.

[0199] The dishwasher (1c) may include a water jacket (23). The water jacket (23) may be placed on the side of the tub (20). For example, the water jacket (23) may be placed on the first side (26) of the tub (20).

[0200] The water jacket (23) can store washing water to be supplied to the tub (20) when washing or rinsing dishes. The water jacket (23) can be connected to a water supply unit (43, see FIG. 2).

[0201] The water jacket (23) can condense water vapor within the washing space (21). For example, when the dishwasher (1) has completed a heated rinse, high-temperature water vapor may be present within the washing space (21). The water jacket (23) stores low-temperature water introduced from the water supply unit (43), so that the water vapor within the washing space (21) can condense by exchanging heat with the water in the water jacket (23).

[0202] Therefore, moisture in the washing space (21) can be easily reduced by the water jacket (23), and drying of the washing space (21) or dishes can be promoted.

[0203] In the case of the dishwasher (1c) according to the third embodiment, the moisture-absorbing drying module (80) may be positioned opposite to the water jacket (23). For example, if the water jacket (23) is positioned on the first side (26), the moisture-absorbing drying module (80) may be positioned on the second side (27).

[0204] Meanwhile, unlike the drawing, the water jacket (23) may be placed on the second side (27), and the moisture-absorbing drying module (80) may be placed on the first side (26).

[0205] The moisture-absorbing drying module (80) and the water jacket (23) are positioned on opposite sides of the tub (20), allowing for efficient utilization of the space of the dishwasher (1c). The dishwasher (1c) can improve drying performance by maintaining the overall volume and the volume of the washing space (21) formed by the tub (20), while also ensuring efficient placement of the water jacket (23) and the moisture-absorbing drying module (80).

[0206] Other configurations are identical to the dishwasher (1) according to the first embodiment, so the illustration and detailed description thereof are omitted.

[0207] Referring to FIG. 5, it can be seen that the door (30) of the dishwasher (1) according to the first embodiment of the present disclosure is partially open.

[0208] The dishwasher (1) can perform a drying process after washing dishes using washing water. The dishwasher (1) can partially open the door (30) during the drying process for efficient drying.

[0209] For example, when the washing of dishes with washing water is finished, the moisture-absorbing drying module (80) can operate the blower fan (83) to perform primary drying of the washing space (21).

[0210] At this time, moisture in the air within the washing space (21) can be absorbed by passing through the absorbent (85) of the moisture-absorbing drying module (80). As the absorbent (85) absorbs moisture, it generates heat, and the temperature of the air passing through the absorbent (85) and the air within the washing space (21) can rise.

[0211] Therefore, air discharged into the washing space (21) through the discharge port (82) can promote the evaporation of water in the washing space (21).

[0212] After the blower fan (83) has been operating for a certain period of time, the door (30) can be opened. The door (30) can be opened to allow secondary drying of the washing space (21). The door (30) can be opened to the extent that the first rack (51), second rack (52), or top rack (53) inside the washing space (21) cannot be pulled out.

[0213] For example, the door (30) can be opened to form an angle of 30° in the vertical direction. In this case, dust, foreign matter, etc. can be prevented from entering the dishwashing space (21), while drying of the dishwashing space (21) and the dishwashing space (21) can be promoted.

[0214] When the door (30) is opened, the air inside the washing space (21) can be exchanged with the outside air. Since the air inside the washing space (21), which has been dried first by the moisture-absorbing drying module (80), is at a relatively high temperature compared to the outside air, the exchange with the outside air can occur smoothly due to the difference in density.

[0215] That is, when the door (30) is opened after the first drying by the moisture absorption drying module (80), the moisture in the washing space (21) is smoothly discharged to the outside, so that the drying time can be shortened.

[0216] In addition, since some of the moisture in the washing space (21) is not absorbed by the absorbent (85) and is discharged to the outside, the total amount of moisture absorbed by the absorbent (85) until drying is completed can be reduced compared to the case where the door (30) is not opened.

[0217] As a result, the amount of desiccant (85) required to dry the washing space (21) is reduced, and the volume occupied by the desiccant (85) in the desiccant drying module (80) can be reduced. Therefore, the cost of the desiccant (85) is reduced, and at the same time, the desiccant drying module (80) can be placed more easily in the limited space between the side of the tub (20) and the case (10).

[0218] In addition, energy required for the regeneration of the absorbent (85) can be saved, which has the advantage of reducing the power consumed during the operation of the dishwasher (1).

[0219] The blower fan (83) can operate for a certain period of time after the door (30) is opened. When the blower fan (83) operates after the door (30) is opened, air flow is formed by the blower fan (83), and the circulation of air within the washing space (21) can be promoted. That is, the third drying of the washing space (21) can be achieved.

[0220] Therefore, high-temperature air passing through the absorbent (85) flows through the washing space (21), evaporates water from dishes, etc., and is exchanged with external air, so that drying proceeds smoothly and the drying effect can be maximized.

[0221] Additionally, the user can recognize that the drying process of the dishwasher (1) is not completely finished even when the door (30) is opened due to the continuous operation of the blower fan (83).

[0222] Meanwhile, the blower fan (83) may temporarily stop operating before the door (30) is opened and then resume operation after the door (30) is opened, or it may continue to operate from before the door (30) is opened and after the door (30) is opened.

[0223] When the blower fan (83) stops and the door (30) is opened, the load on the blower fan (83) due to the sudden pressure change in the washing space (21) caused by the opening of the door (30) can be prevented. This can increase the durability of the moisture-absorbing drying module (80), including the blower fan (83).

[0224] In addition, there is an advantage that the energy required to regenerate the absorbent (85) is reduced by preventing the blower fan (83) from overheating and preventing the absorbent (85) from absorbing more moisture than necessary.

[0225] If the blower fan (83) operates continuously from before the door (30) is opened until after it is opened, continuous moisture absorption and drying of the washing space (21) may be possible. In this case, the drying time of the washing space (21) may be further shortened.

[0226] Meanwhile, the moisture-absorbing drying module (80) may be placed on the rear side (28) of the tub (20). When the moisture-absorbing drying module (80) is placed on the rear side (28) of the tub (20), the moisture-absorbing drying module (80) may face the door (30) placed in front of the washing space (21).

[0227] Therefore, some of the air discharged from the discharge port (82) can be easily discharged to the outside along the slope of the door (30) that is opened during the drying process.

[0228] That is, when the moisture-absorbing drying module (80) is placed on the rear side (28) of the tub (20) and the blower fan (83) is operated after the door (30) is opened during the drying process, the air can be smoothly discharged to the outside after circulating through the washing space (21), thereby improving the drying effect.

[0229] Referring to FIG. 6, the interior of a dishwasher (1d) according to the fourth embodiment of the present disclosure can be seen.

[0230] In the case of the dishwasher (1d) according to the fourth embodiment, the door (30) may include a door fan (35). The door (30) may form a door inlet (36) communicating with the door fan (35) and the washing space (21), and a door outlet (37) communicating with the door fan (35) and the outside of the dishwasher (1).

[0231] As a result, when the door fan (35) is operated, the air inside the washing space (21) can be discharged to the outside of the dishwasher (1) through the door inlet (36) and the door outlet (37). Therefore, even if the door (30) is not opened, the air inside the washing space (21) can be discharged to the outside to lower the humidity.

[0232] The door inlet (36) can be formed above the second rack (52). The door inlet (36) can be formed above the second spray arm (62). As a result, the relatively hot and humid air above the washing space (21) can be easily discharged to the outside of the dishwasher (1).

[0233] The door inlet (36) may be formed above the bottom of the second rack (52). The door inlet (36) may be formed between the bottom and top of the second rack (52).

[0234] In this case, when the blower fan (83) is operated, the humid air adjacent to the dishes placed on the second rack (52) can be immediately drawn into the intake port (81). Therefore, the drying of the dishes placed on the second rack (52) can be promoted.

[0235] The door inlet (36) may be formed above the top of the second rack (52). The door inlet (36) may be formed between the top of the second rack (52) and the bottom of the top rack (53).

[0236] In this case, the air flowing into the door inlet (36) does not interfere with the dishes, so the flow resistance can be minimized. That is, the flow rate of air discharged to the outside of the dishwasher (1) through the door fan (35) can be increased.

[0237] The door inlet (36) can be formed between the bottom and top of the top rack (53).

[0238] In this case, when the door fan (35) is operated, the humid air adjacent to the dishes placed on the top rack (53) can be immediately drawn into the door inlet (36). Thus, the drying of the dishes placed on the top rack (53) can be promoted.

[0239] The door inlet (36) can be formed adjacent to the other side of the tub facing one side of the tub (20) where the moisture-absorbing drying module (80) is placed.

[0240] For example, when the moisture-absorbing drying module (80) is positioned on the first side (26), the door inlet (36) may be formed closer to the second side (27) than to the first side (26). For example, when the moisture-absorbing drying module (80) is positioned on the second side (27), the door inlet (36) may be formed closer to the first side (26) than to the second side (27).

[0241] As a result, high-temperature air discharged from the discharge port (82) of the moisture-absorbing drying module (80) can be prevented from being immediately discharged to the outside through the door fan (35).

[0242] Accordingly, the high-temperature air discharged from the discharge port (82) forms a uniform air flow within the tub (20) and can dry the washing space (21), and then the high-temperature, high-humidity air is discharged to the outside through the door inlet (36) to increase drying efficiency.

[0243] Meanwhile, when the moisture-absorbing drying module (80) is positioned on the rear side (28), the door inlet (36) may be formed to be spaced apart from the moisture-absorbing drying module (80) in the left and right directions.

[0244] In this case, the high-temperature air discharged from the discharge port (82) forms a uniform flow within the tub (20) and sufficiently dries the cleaning space (21) before being discharged to the outside, thereby improving drying efficiency.

[0245] A door outlet (37) can be formed on the lower surface of the door (30). This prevents high-temperature steam from being directly discharged toward a user in front.

[0246] Meanwhile, various effects may occur depending on the operation sequence of the door fan (35) and the moisture absorption drying module (80).

[0247] For example, the door fan (35) can be operated after the first drying of the washing space (21) by the blower fan (83). The door fan (35) can be operated for a certain period of time to perform the second drying of the washing space (21) after the blower fan (83) has operated for a certain period of time to complete the first drying of the washing space (21).

[0248] When the washing space (21) is dried by the blower fan (83), the washing space (21) may be filled with high temperature and high humidity air. This may be because the absorbent (85) absorbs moisture and generates heat as described above.

[0249] In this case, the greater the temperature difference between the inside and outside of the tub (20), the greater the density difference, so that air exchange occurs quickly, and thus moisture in the washing space (21) is discharged more quickly, and the drying time can be shortened.

[0250] Meanwhile, the door fan (35) can operate after the blower fan (83) has operated for a certain period of time and stopped. The door fan (35) can operate for a certain period of time to perform a second drying of the washing space (21) after the blower fan (83) has operated for a certain period of time to complete the first drying of the washing space (21).

[0251] In this case, the amount of moisture absorbed by the absorbent (85) of the moisture-absorbing drying module (80) is reduced, and the energy required for the regeneration of the absorbent (85) is further reduced.

[0252] In addition, the moisture absorption drying module (80) and the door fan (35) operate sequentially, thereby improving the control stability of the dishwasher (1) and reducing the noise generated during the drying process of the dishwasher (1).

[0253] Meanwhile, the door fan (35) can operate for a shorter period than the moisture-absorbing drying module (80). This is because the hot and humid air generated while the moisture-absorbing drying module (80) is operating can be discharged to the outside in a relatively short time by the door fan (35).

[0254] Therefore, since the door fan (35) operates for a shorter period than the moisture-absorbing drying module (80), sufficient drying of the washing space (21) can be achieved while consuming less power and shortening the drying time.

[0255] As another example, the door fan (35) can operate simultaneously with the moisture-absorbing drying module (80). After the dishwasher (1d) finishes washing or rinsing the dishes, the door fan (35) can operate simultaneously with the moisture-absorbing drying module (80).

[0256] In this case, moisture within the washing space (21) can be discharged by the door fan (35), and at the same time, moisture absorption can proceed through the moisture absorption drying module (80). Therefore, rapid drying can be achieved.

[0257] Additionally, outside air may be drawn into a portion of the washing space (21) depending on the operation of the door fan (35). As a result, the temperature of the air in the washing space (21) is maintained at a relatively low level, which can improve the efficiency of the moisture absorbent (85) in absorbing moisture.

[0258] Furthermore, since the door fan (35) operates from the beginning of the drying process (S5), the pressure difference inside and outside the tub (20) can be reduced compared to other sequences. Therefore, the load applied to the door fan (35) is reduced, and the durability of the dishwasher (1d), including the door fan (35), can be increased.

[0259] As another example, the door fan (35) can be operated before the drying of the washing space (21) by the moisture-absorbing drying module (80). After the dishwasher (1d) finishes washing or rinsing the dishes, and after the first drying of the washing space (21) is performed by the door fan (35), the moisture-absorbing drying module (80) can be operated to perform the second drying of the washing space (21).

[0260] In this case, since the moisture absorption drying module (80) operates after a large amount of moisture has been discharged by the door fan (35), the amount of moisture absorbed by the absorbent (85) can be reduced to the minimum. Therefore, the energy required for the regeneration of the absorbent (85) is reduced, and the amount of absorbent (85) used is reduced, thereby reducing material costs and maximizing space utilization.

[0261] In addition, the door fan (35) and the moisture absorption drying module (80) operate sequentially, thereby improving the control stability of the dishwasher (1d) and reducing the noise generated during the drying process of the dishwasher (1d).

[0262] Meanwhile, the door fan (35) can be operated before the door (30) is opened. That is, after the drying of the washing space (21) is completed by the operation of the door fan (35), the door (30) can be opened to allow the drying to continue.

[0263] If the door (30) is not opened immediately after drying by the blower fan (83), and the door (30) is opened to proceed with drying after drying is performed through the door fan (35), it is possible to prevent the internal moisture of the washing space (21) from being rapidly discharged to the outside.

[0264] Therefore, due to the rapid difference in humidity between the air inside the washing space (21) and the outside air, moisture discharged from the washing space (21) can be prevented from condensing indoors. This can maintain a pleasant indoor environment and increase user satisfaction.

[0265] In addition, moisture in the washing space (21) can be discharged in advance, thereby reducing the time until drying is completed after the door (30) is opened. This has the advantage of minimizing the entry of dust, foreign substances, etc. into the washing space (21) while the door (30) is open.

[0266] In addition, since the door (30) is opened after the door fan (35) is operated, the washing space (21) can be dried efficiently while reducing the influence of the external environment. For example, in the summer, the air outside the dishwasher (1) may have relatively higher humidity than in winter. In this case, even if the door (30) is opened, the drying performance may be lower than in winter.

[0267] However, if moisture inside the washing space (21) is discharged in advance through the door fan (35), the drying delay caused by high humidity of the outside air can be minimized even after the door (30) is opened, allowing for faster drying.

[0268] Meanwhile, if moisture in the washing space (21) is discharged to the outside by the door fan (35), the total amount of moisture absorbed by the absorbent (85) until drying is completed may be reduced.

[0269] Therefore, the amount of absorbent (85) required for the moisture-absorbing drying module (80) is reduced, and the volume of the moisture-absorbing drying module (80) can be reduced. That is, it becomes easier to place the moisture-absorbing drying module (80) in the limited space between the side of the tub (20) and the case (10).

[0270] Other configurations are identical to the dishwasher (1) according to the first embodiment, so the illustration and detailed description thereof are omitted.

[0271] Referring to Fig. 7, the process of the dishwasher (1) and the sequence of its progress can be confirmed.

[0272] The dishwasher (1) may include a pre-washing cycle (S1), a washing cycle (S2), a rinsing cycle (S3), a heating and rinsing cycle (S4), and a drying cycle (S5).

[0273] The pre-washing process (S1) may be a process of circulating washing water by driving the washing pump (45) without adding detergent. As a result, the first washing of the dishes can be performed.

[0274] The washing process (S2) may be a process of washing dishes by circulating washing water with detergent added. As a result, secondary washing of the dishes may be performed.

[0275] The rinsing process (S3) and the heated rinsing process (S4) may be processes that remove residual detergent from dishes by circulating washing water. At this time, rinse may be supplied from the detergent supply device of the door (30).

[0276] When the rinsing process (S3) and the heating rinsing process (S4) are performed, heated washing water may be supplied. Accordingly, the tableware is heated to a predetermined temperature, and in the subsequent drying process (S5), the drying efficiency of the tableware can be improved and the drying time can be shortened.

[0277] The above-mentioned detailed procedures can be combined and adjusted to be omitted or performed redundantly depending on the settings or options of the selected washing course.

[0278] At this time, between each administration, a drainage administration of the washing water used during each administration and a water supply administration of supplying new washing water may be included.

[0279] For example, a water supply process may be included before the pre-washing process (S1). For example, a drainage process and a water supply process may be performed between the pre-washing process (S1) and the washing process (S2), between the washing process (S2) and the rinsing process (S3), and between the rinsing process (S3) and the heating and rinsing process (S4). For example, a drainage process may be performed between the heating and rinsing process (S4) and the drying process (S5).

[0280] Referring to FIG. 8, the drying process (S5) of a dishwasher according to the first, second, or third embodiment of the present disclosure can be observed.

[0281] Meanwhile, although the drying process (S5) is depicted in this drawing as including a drainage process, the drying process (S5) may not include a drainage process. As previously mentioned, the drainage process may be performed between the heating and rinsing process (S4) and the drying process (S5).

[0282] The drying process (S5) may include a step (S52) in which the blower fan (83) stops after operating for a certain period of time. While the blower fan (83) is operating, the first drying of the washing space (21) may proceed.

[0283] After the blower fan (83) is stopped, the step (S54) of opening the door (30) may proceed. As described above, after the first drying of the washing space (21) is completed, high temperature and high humidity air may exist in the washing space (21).

[0284] When the door (30) is opened, the hot and humid air inside the washing space (21) can be exchanged with the air outside the dishwasher (1). As a result, relatively dry air can naturally convect through the washing space (21), and secondary drying of the washing space (21) can proceed.

[0285] After the door (30) is opened, a step (S55) in which the blower fan (83) operates for a certain period of time and then stops may be performed. As a result, the third drying of the washing space (21) may be performed.

[0286] As described above, when the blower fan (83) is operated after the door (30) is opened, the air within the washing space (21) circulates smoothly and the drying of the washing space (21) can be promoted. Therefore, when the blower fan (83) is stopped after operating for a certain period of time, the washing space (21) or the dishes can be completely dried.

[0287] Referring to FIG. 9, the drying process (S5') of a dishwasher (1d) according to the fourth embodiment of the present disclosure can be seen.

[0288] Meanwhile, although the drying process (S5') is depicted in this drawing as including a drainage process, the drying process (S5') may not include a drainage process. As previously mentioned, the drainage process may be performed between the heating and rinsing process (S4) and the drying process (S5').

[0289] The drying process (S5') may include a step (S52) in which the blower fan (83) stops after operating for a certain period of time. While the blower fan (83) is operating, the first drying of the washing space (21) may proceed.

[0290] After the blower fan (83) is stopped, a step (S53) in which the door fan (35) operates for a certain period of time and then stops may be performed. As described above, after the first drying of the washing space (21) is completed, high temperature and high humidity air may exist in the washing space (21).

[0291] When the door fan (35) is operated, the hot and humid air inside the washing space (21) can be discharged to the outside of the dishwasher (1) through the door (30). As a result, secondary drying of the washing space (21) can be carried out.

[0292] After the door fan (35) is stopped, the step (S54) of opening the door (30) can proceed. When the door (30) is opened, the hot and humid air inside the washing space (21) can be exchanged with the air outside the dishwasher (1). As a result, relatively dry air can naturally convect through the washing space (21), and the third drying of the washing space (21) can proceed.

[0293] After the door (30) is opened, a step (S55) in which the blower fan (83) operates for a certain period of time and then stops may be performed. As a result, the fourth drying of the washing space (21) may be performed.

[0294] As described above, when the blower fan (83) is operated after the door (30) is opened, the air within the washing space (21) circulates smoothly and the drying of the washing space (21) can be promoted. Therefore, when the blower fan (83) is stopped after operating for a certain period of time, the washing space (21) or the dishes can be completely dried.

[0295] Referring to FIG. 10, the interior of a dishwasher (100) according to the fifth embodiment of the present disclosure can be seen.

[0296] The dishwasher (100) includes a tub (120). The tub (120) may be formed in a box shape with an open front. The tub (120) may be referred to as a washing tank.

[0297] The tub (120) can be formed from a metal plate that is resistant to high temperature and moisture. For example, the tub (120) can be formed from a plate made of a stainless steel material through press processing.

[0298] A washing space (121) may be formed inside the tub (120). The tub (120) may accommodate objects to be washed, such as bowls, cutlery, and other cooking utensils, in the washing space (121). Unless otherwise noted, the objects to be washed will be referred to as tableware.

[0299] A storage unit (150) may be placed in the washing space (121). The storage unit (150) may include a first rack (151), a second rack (152), and a top rack (153). The storage unit (150) may be detachably placed in the washing space (121) inside the tub (120). Tableware may be placed in or accommodated in the storage unit (150).

[0300] The dishwasher (100) may include a spray unit. The spray unit may include a first spray arm (161), a second spray arm (162), and a top nozzle (163). The spray unit may be installed adjacent to a storage unit (150). The spray unit may spray washing water for washing dishes.

[0301] A drive unit (140) for supplying, collecting, circulating, and draining wash water for washing dishes may be placed below the tub (120).

[0302] The driving unit (140) may include a sump (141) for storing washing water, a sump cover (142) for separating the sump (141) from the tub (120), a water supply unit (143) for supplying washing water to the sump (141) from an external water source, a drainage unit (144) for discharging washing water from the sump (141) to the outside, a washing pump (145) for supplying washing water to the sump (141), and a supply path (146).

[0303] The sump cover (142) may be positioned above the sump (141). The sump cover (142) may be provided with a plurality of recovery holes (not shown) for recovering the washing water sprayed into the washing space (121) into the sump (141).

[0304] That is, the washing water that was sprayed toward the dishes in the washing space (121) or washed the dishes falls to the bottom of the washing space (121) and can be recovered back into the sump (141) through the sump cover (142).

[0305] The water supply unit (143) can supply washing water from an external water source to the washing space (121) of the tub (120). The water introduced from the external water source flows sequentially through the sump (141), washing pump (145), and supply path (146) and can be used for washing and rinsing in the washing space (121) of the tub (120).

[0306] A washing pump (145) may be positioned on one side of the sump (141). The washing pump (145) may pressurize washing water and supply it to the spray section. One end of the washing pump (145) may be connected to the sump (141). The other end of the washing pump (145) may be connected to the supply channel (146).

[0307] The washing pump (145) may include an impeller (1451), a pump motor (1453), etc. As a result, when power is supplied to the pump motor (1453), the impeller (1451) rotates, and the washing water in the sump (141) is pressurized and then supplied to the spraying section through the supply path (146).

[0308] Meanwhile, the supply channel (146) can selectively supply washing water supplied from the washing pump (145) to the spraying section.

[0309] For example, the supply channel (146) may be connected to the first injection arm (161), the second injection arm (162), and the top nozzle (163), and may include a switching valve (1465) that selectively opens and closes the flow of cleaning water to the first injection arm (161), the second injection arm (162), and the top nozzle (163).

[0310] Depending on the control of the switching valve (1465), cleaning water may be sprayed sequentially or simultaneously from the first spray arm (161), the second spray arm (162), and the top nozzle (163).

[0311] Meanwhile, the spray unit can spray washing water toward the tableware placed in the storage unit (150).

[0312] For example, the first spray arm (161) can spray washing water onto dishes placed on the first rack (151). The second spray arm (162) can spray washing water onto the first rack (151) or onto the second rack (152) placed above the first rack (151). The top nozzle (163) can spray washing water onto the second rack (152) or onto the top rack (153) placed above the second rack (152).

[0313] The first spray arm (161) and the second spray arm (162) can be rotatably positioned in the washing space (121) of the tub (120). As a result, the first spray arm (161) and the second spray arm (162) can rotate and spray washing water toward the dishes in the storage section (150).

[0314] For example, the first spray arm (161) can rotate at the bottom of the first rack (151) and spray cleaning water toward the first rack (151). The second spray arm (162) can rotate between the first rack (151) and the second rack (152) and spray cleaning water.

[0315] The first rack (151), the second rack (152), and the top rack (153) can be withdrawn from the washing space (121) through the open front of the tub (120).

[0316] In the drawing, a first rack (151) located at the bottom of the tub (120) and capable of accommodating relatively large tableware, a second rack (152) placed on top of the first rack (151) and capable of storing medium-sized tableware, and a top rack (153) located at the top of the tub (120) and capable of storing small tableware are shown.

[0317] The present invention is not limited thereto, but is described based on an embodiment of a dishwasher (100) equipped with three storage compartments (150) as illustrated.

[0318] Guide rails (not shown) may be provided on both side walls of the tub (120) so that the first rack (151), the second rack (152), and the top rack (153) can be pulled out through the open front of the tub (120). For example, the guide rails may include a first rail, a second rail, and a top rail.

[0319] Meanwhile, the door (130) can open and close the open front of the tub (120). A hinge portion (not shown) may be provided at the bottom of the door (130). As a result, the door (130) can be opened by rotating with the hinge portion as a rotation axis.

[0320] The door (130) may include a door cover (1310) and a door liner (1320). The door cover (1310) may be positioned at the front of the door (130), and the door liner (1320) may be positioned at the rear of the door (130). The door liner (1320) may be coupled to the rear of the door cover (1310).

[0321] The door liner (1320) may face the washing space (121). The door liner (1320) may further be equipped with a detergent supply device (not shown) that supplies detergent into the interior of the tub (120).

[0322] The door (130) includes a door fan (135). The door fan (135) discharges air from the washing space (121) to the outside of the tub (120). The door fan (135) may be placed in the space between the door cover (1310) and the door liner (1320).

[0323] Meanwhile, the tub (120) may include a bottom surface (125), a rear surface (128), and a top surface (129). The washing space (121) may be formed by being surrounded by the bottom surface (125), the rear surface (128), the top surface (129), etc.

[0324] The bottom surface (125) may be positioned above the sump cover (142). The bottom surface (125) may be positioned at an angle toward the sump cover (142). Thus, the wash water falling onto the bottom surface (125) may be guided toward the sump (141).

[0325] The rear surface (128) may be a surface facing the door (130) when the door (130) seals the washing space (121). The rear surface (128) may be positioned vertically. As a result, the washing water in the washing space (121) can flow along the rear surface (128) to the bottom surface (125).

[0326] The upper surface (129) can form the ceiling of the tub (120). The upper surface (129) can face the bottom surface (125). A top nozzle (163) can be positioned on one side of the upper surface (129).

[0327] The dishwasher (100) may include a machine room (122). The machine room (122) may be formed between the tub (120) and the case (110). The machine room (122) may be located below the tub (120). The machine room (122) may be a space where a sump (141), a wash pump (145), piping, and other parts are placed.

[0328] The dishwasher (100) includes a moisture-absorbing drying module (180). The moisture-absorbing drying module (180) can be placed in the machine room (122).

[0329] The moisture-absorbing drying module (180) can dry the washing space (121) or dishes. The moisture-absorbing drying module (180) can repeat moisture absorption and regeneration by absorbing moisture from the washing space (121) or by discharging the absorbed moisture to the washing space (121). This is explained in detail in FIG. 4.

[0330] The intake port (181) may be a hole through which air within the washing space (121) flows into the moisture-absorbing drying module (180). The intake port (181) may be formed on the side of the tub (120). For example, as shown in the drawing, the intake port (181) may be formed on the rear side (128) of the tub (120). Meanwhile, unlike the drawing, the intake port (181) may be formed at various locations on the tub (120).

[0331] The intake port (181) may be formed on the second spray arm (162). The intake port (181) may be formed on the second rack (152). In this case, the moisture-absorbing drying module (180) can draw in relatively hot and humid air within the washing space (121).

[0332] Accordingly, when the suction port (181) is formed above the second injection arm (162) or above the second rack (152), the moisture-absorbing drying module (180) can absorb a larger amount of moisture than when the suction port (181) is formed in other locations.

[0333] Meanwhile, the intake port (181) may be formed between the second rack (152) and the top rack (153). In this case, the air flowing into the intake port (181) may not interfere with the tableware placed on the second rack (152) or the top rack (153).

[0334] Accordingly, the flow rate of air passing through the moisture-absorbing drying module (180) can be increased, and the amount of moisture absorbed through the moisture-absorbing drying module (180) can be increased.

[0335] The suction channel (188) may be a passage through which air introduced into the suction port (181) flows to the moisture-absorbing drying module (180). The suction channel (188) may connect the suction port (181) and the moisture-absorbing drying module (180). Air from the washing space (121) introduced into the suction port (181) may flow to the moisture-absorbing drying module (180) inside the machine room (122) through the suction channel (188).

[0336] Meanwhile, in this drawing, the suction channel (188) is depicted as being positioned at the rear of the tub (120) or case (110), but this is for convenience of illustration, and the suction channel (188) is positioned in the space between the tub (120) and the case (110).

[0337] The discharge port (182) may be a hole through which air passing through the moisture-absorbing drying module (180) is discharged into the washing space (121). The discharge port (182) may be formed adjacent to the bottom surface (125) of the tub (120). The discharge port (182) may be formed below the first spray arm (161) or the first rack (151).

[0338] In this case, the high-temperature air dried by passing through the moisture-absorbing drying module (180) rises upward and can promote the circulation of air within the washing space (121) and the drying of dishes.

[0339] Referring to FIG. 11, a door fan (135) of a dishwasher (100) according to the fifth embodiment of the present disclosure and an exhaust device (1330) including the same can be seen. This drawing is a front view of a door (130) excluding a door cover (1310, see FIG. 10).

[0340] The exhaust device (1330) may include an intake duct (1331), a door fan (135), and an exhaust duct (1332). The exhaust device (1330) can discharge air from the washing space (121) inside the tub (120) to the outside. One end of the exhaust device (1330) is connected to a door liner (1320), and the other end can communicate with the outside.

[0341] The intake duct (1331) may be a passage through which air introduced within the washing space (121) flows. Air within the washing space (121) may flow into the intake duct (1331) depending on the operation of the door fan (135).

[0342] The exhaust duct (1332) may be a passage through which air introduced into the intake duct (1331) passes through the door fan (135) and is discharged to the outside of the dishwasher (100). One end of the exhaust duct (1332) is connected to the door fan (135), and the other end may communicate with the outside at the bottom of the door (130). Thus, air can be discharged to the bottom of the door (130) through the exhaust duct (1332).

[0343] Referring to FIG. 12, a moisture-absorbing drying module (180) and a door (130) of a dishwasher (100) according to the fifth embodiment of the present disclosure can be seen.

[0344] The moisture-absorbing drying module (180) may include a blower fan (183), a regenerative heater (184), and a moisture absorbent (185).

[0345] The blower fan (183) can circulate air. The blower fan (183) can be positioned on one side of the suction channel (188). Depending on the operation of the blower fan (183), air within the washing space (121) can be drawn into the suction port (181) and flow along the suction channel (188) to the moisture-absorbing drying module (180).

[0346] Air introduced into the moisture-absorbing drying module (180) can pass through the desiccant (185). The desiccant (185) can be placed on one side of the discharge port (182). Air that has passed through the desiccant (185) can be discharged back into the washing space (121) through the discharge port (182).

[0347] Meanwhile, the absorbent (185) can absorb moisture contained in the air in the washing space (121) during the drying process (S50), and can be regenerated by releasing the absorbed moisture into the air during the washing process (S2) or the rinsing process (S3, S4).

[0348] Accordingly, the absorbent (185) may include a reversible absorbent material so as to absorb moisture or release absorbed moisture depending on the operating temperature range.

[0349] For example, the absorbent (185) may be a composition comprising any one of aluminum oxide, silicon oxide, silica gel, alumina silica, or zeolite, or a combination of two or more selected from these.

[0350] Air passes between a plurality of absorbents (185) provided in the form of particles and can absorb moisture by coming into contact with the absorbents (185), or absorb moisture discharged from the absorbents (185).

[0351] Therefore, the desiccant (185) can act as a flow resistance to the airflow. To minimize such flow resistance, the particle size of the desiccant (185) can be selected so that pores are effectively formed and optimal moisture absorption efficiency is secured.

[0352] The regeneration heater (184) can be placed between the blower fan (183) and the desiccant (185). The regeneration heater (184) can generate heat when power is supplied. The regeneration heater (184) can heat the air to dry and regenerate the desiccant (185) during the regeneration process of the desiccant (185).

[0353] For example, when the blower fan (183) forms an airflow during the regeneration process of the absorbent (185), high-temperature air is introduced into the absorbent (185) by the regeneration heater (184), so that the regeneration of the absorbent (185) can occur smoothly.

[0354] When the moisture-absorbing drying module (180) performs moisture-absorbing drying of the washing space (121) or dishes, power may not be supplied to the regeneration heater (184). On the other hand, the blower fan (183) can continuously operate during both the regeneration process and the moisture absorption process of the absorbent (185) to form an air flow.

[0355] Meanwhile, although not shown, a thermostat for detecting whether the regeneration heater (184) is overheated and a temperature sensor for detecting the temperature of the air may be placed at a location adjacent to the regeneration heater (184).

[0356] The drying process through the moisture-absorbing drying module (180) and the regeneration process of the moisture absorbent (185) are described.

[0357] After the washing of the dishes is finished, the washing water can be discharged outside the dishwasher (100) through the drain (144, see FIG. 10). Afterwards, any remaining moisture in the washing space (121) can be dried through the moisture-absorbing drying module (180).

[0358] When the blower fan (183) is operated, air in the washing space (121) can be drawn into the moisture-absorbing drying module (180) through the intake port (181) and discharged into the washing space (121) through the discharge port (182). At this time, moisture in the air passing through the desiccant (185) can be absorbed by the desiccant (185).

[0359] Therefore, when the blower fan (183) operates continuously and circulates air within the washing space (121), drying of the washing space (121) and dishes can proceed. At this time, the regeneration heater (184) may not operate.

[0360] Meanwhile, the regeneration of the absorbent (185) can be performed during the washing process (S2) or the rinsing process (S3, S4). For example, when washing dishes, the blower fan (183) and the regeneration heater (184) operate, and high-temperature air can flow through the absorbent (185). At this time, the temperature of the air may be higher than the regeneration temperature of the absorbent (185). Therefore, the air passing through the absorbent (185) can absorb moisture from the absorbent (185).

[0361] The air discharged into the washing space (121) after absorbing moisture from the absorbent (185) can be condensed by the low-temperature washing water. Therefore, the moisture contained in the air is discharged to the outside of the dishwasher (100) through the drain (144), and the absorbent (185) can be regenerated.

[0362] The door (130) can form a door inlet (136) that connects the door fan (135) and the washing space (121), and a door outlet (137) that connects the door fan (135) and the outside of the dishwasher (100).

[0363] The door inlet (136) can be connected to the intake duct (1331, see FIG. 11). The door outlet (137) can be connected to the exhaust duct (1332, see FIG. 11).

[0364] As a result, when the door fan (135) is operated, the air inside the washing space (121) can be discharged to the outside of the dishwasher (100) through the door inlet (136) and the door outlet (137). Therefore, even if the door (130) is not opened, the air inside the washing space (121) can be discharged to the outside to lower the humidity.

[0365] The door inlet (136) can be formed above the second rack (152). The door inlet (136) can be formed above the second spray arm (162). As a result, the relatively hot and humid air above the washing space (121) can be easily discharged to the outside of the dishwasher (100).

[0366] The door inlet (136) may be formed above the bottom of the second rack (152). Unlike the present drawing, the door inlet (136) may be formed between the bottom and top of the second rack (152).

[0367] In this case, when the blower fan (183) is operated, the humid air adjacent to the dishes placed on the second rack (152) can be immediately drawn into the intake port (181). Therefore, the drying of the dishes placed on the second rack (152) can be promoted.

[0368] Meanwhile, unlike the present drawing, the door inlet (136) may be formed above the top of the second rack (152). The door inlet (136) may be formed between the top of the second rack (152) and the bottom of the top rack (153).

[0369] In this case, the air flowing into the door inlet (136) does not interfere with the dishes, so the flow resistance can be minimized. That is, the flow rate of air discharged to the outside of the dishwasher (100) through the door fan (135) can be increased.

[0370] The door inlet (136) can be formed between the bottom and top of the top rack (153).

[0371] In this case, when the door fan (135) is operated, the humid air adjacent to the dishes placed on the top rack (153) can be immediately drawn into the door inlet (136). Thus, the drying of the dishes placed on the top rack (153) can be promoted.

[0372] A door outlet (137) can be formed on the lower surface of the door (130). This prevents high-temperature steam from being directly discharged toward a user in front.

[0373] Other configurations are the same as those described in Fig. 2, so detailed illustration and description thereof are omitted.

[0374] Referring to FIGS. 13 to 15, the process of the dishwasher (100) absorbing or discharging moisture within the washing space (121) during the drying process (S50) is described. The arrows indicated by dotted lines in the drawings represent the direction of air flow, but the actual direction of air flow within the washing space (121) may differ from the drawings.

[0375] FIG. 13 shows the moisture absorption drying module (180) operating to proceed with moisture absorption drying of the washing space (121). FIG. 14 shows the door fan (135) operating to discharge air inside the washing space (121) to the outside. FIG. 15 shows the moisture absorption drying module (180) operating to proceed with moisture absorption drying of the washing space (121) after the door (130) is partially opened.

[0376] Referring to FIG. 13, it can be seen that air in the washing space (121) flows into the moisture-absorbing drying module (180) and that air in the washing space (121) is circulated.

[0377] The dishwasher (100) can perform the process of washing or rinsing dishes using washing water and then drying the dishes.

[0378] For example, after the washing of dishes with washing water is finished, the moisture-absorbing drying module (180) can operate the blower fan (183) to perform drying of the washing space (121).

[0379] At this time, moisture in the air within the washing space (121) can be absorbed by passing through the absorbent (185) of the moisture-absorbing drying module (180). As the absorbent (185) absorbs moisture, it generates heat, and the temperature of the air passing through the absorbent (185) and the air within the washing space (121) can rise.

[0380] Therefore, air discharged into the washing space (121) through the discharge port (182) can promote the evaporation of water in the washing space (121).

[0381] As a result, at the beginning of the process of operating the moisture absorption drying module (180) to absorb moisture in the washing space (121), high-temperature air passing through the moisture absorbent (185) promotes the evaporation of water in the washing space (121), so that the washing space (121) can be filled with high-temperature and high-humidity air.

[0382] However, if the moisture-absorbing drying module (180) operates continuously, moisture is absorbed by the moisture absorbent (185), and the humidity in the washing space (121) can gradually decrease.

[0383] Referring to FIG. 14, it can be seen that air inside the washing space (121) is discharged to the outside of the door (130) through the door fan (135).

[0384] The door fan (135) can operate during the drying cycle (S50). The door fan (135) can expel air from the washing space (121) to the outside of the dishwasher (100). Thus, moisture is also expelled along with the air in the washing space (121), thereby promoting the drying of the dishes.

[0385] In addition, since some of the moisture in the washing space (121) is not absorbed by the absorbent (185) and is discharged to the outside, the total amount of moisture absorbed by the absorbent (185) until drying is completed can be reduced.

[0386] Therefore, the energy required for the regeneration of the absorbent (185) can be saved, which has the advantage of reducing the power consumed during the operation of the dishwasher (100).

[0387] In addition, since the amount of absorbent (185) required to dry the washing space (121) is relatively reduced, the volume occupied by the absorbent (185) in the moisture-drying module (180) can be reduced.

[0388] Therefore, the cost of the absorbent (185) can be reduced, and at the same time, the volume occupied by the absorbent drying module (180) within the machine room (122) can be reduced.

[0389] This can increase the efficiency of component placement within the machine room (122), reduce noise and vibration generated in the machine room (122), and facilitate heat dissipation, thereby increasing the long-term durability of the dishwasher (100).

[0390] Meanwhile, various effects may occur depending on the operation sequence of the door fan (135) and the moisture-absorbing drying module (180).

[0391] For example, the door fan (135) can be operated after the washing space (121) is dried by the moisture-absorbing drying module (180). When the washing space (121) is dried by the blower fan (183) and the moisture-absorbing drying module (180), the washing space (121) can be filled with high-temperature and high-humidity air as described above.

[0392] In this case, the door fan (135) can operate to quickly expel hot and humid air to the outside. As the temperature difference between the inside and outside of the tub (120) increases, the density difference increases, and thus air exchange occurs quickly, allowing moisture in the washing space (121) to be expelled more quickly, thereby shortening the drying time.

[0393] Meanwhile, the door fan (135) can operate after the blower fan (183) has operated for a certain period of time and stopped. The door fan (135) can operate for a certain period of time to perform a second drying of the washing space (121) after the blower fan (183) has operated for a certain period of time to complete the first drying of the washing space (121).

[0394] In this case, the amount of moisture absorbed by the absorbent (185) of the moisture-absorbing drying module (180) is reduced, so the energy required for the regeneration of the absorbent (185) is further reduced.

[0395] In addition, the moisture absorption drying module (180) and the door fan (135) operate sequentially, thereby improving the control stability of the dishwasher (100) and reducing the noise generated during the drying process of the dishwasher (100).

[0396] Meanwhile, the door fan (135) may operate for a shorter period than the moisture-absorbing drying module (180). This is because the hot and humid air generated while the moisture-absorbing drying module (180) is operating can be discharged to the outside in a relatively short time by the door fan (135).

[0397] Therefore, since the door fan (135) operates for a shorter period than the moisture-absorbing drying module (180), sufficient drying of the washing space (121) can be achieved while consuming less power and shortening the drying time.

[0398] As another example, the door fan (135) can operate simultaneously with the moisture-absorbing drying module (180). After the dishwasher (100) finishes washing or rinsing the dishes, the door fan (135) can operate simultaneously with the moisture-absorbing drying module (180).

[0399] In this case, moisture within the washing space (121) can be discharged by the door fan (135) and moisture can be absorbed through the moisture-absorbing drying module (180). Therefore, rapid drying can be achieved.

[0400] Additionally, outside air may be drawn into a portion of the washing space (121) depending on the operation of the door fan (135). As a result, the temperature of the air in the washing space (121) is maintained at a relatively low level, which can improve the efficiency of the moisture absorbent (185) in absorbing moisture.

[0401] Furthermore, since the door fan (135) operates from the beginning of the drying process (S50), the pressure difference inside and outside the tub (120) can be reduced compared to other sequences. Therefore, the load applied to the door fan (135) is reduced, and the durability of the dishwasher (100), including the door fan (135), can be increased.

[0402] As another example, the door fan (135) can be operated before drying of the washing space (121) by the moisture-absorbing drying module (180). After the dishwasher (100) finishes washing or rinsing the dishes, and after the first drying of the washing space (121) is performed by the door fan (135), the moisture-absorbing drying module (180) can be operated to perform the second drying of the washing space (121).

[0403] In this case, since the moisture absorption drying module (180) operates after a large amount of moisture has been discharged by the door fan (135), the amount of moisture absorbed by the absorbent (185) can be reduced to the minimum. Therefore, the energy required for the regeneration of the absorbent (185) is reduced, and the amount of absorbent (185) used is reduced, thereby reducing material costs and maximizing space utilization.

[0404] In addition, the door fan (135) and the moisture absorption drying module (180) operate sequentially, thereby improving the control stability of the dishwasher (100) and reducing the noise generated during the drying process of the dishwasher (100).

[0405] Referring to FIG. 15, it can be seen that the door (130) of a dishwasher (100) according to one embodiment of the present disclosure is partially open.

[0406] The dishwasher (100) may partially open the door (130) during the drying process for efficient drying. The door (130) is opened to facilitate drying of the washing space (121).

[0407] The door (130) can be opened to the extent that the first rack (151), second rack (152), or top rack (153) in the washing space (121) cannot be pulled out.

[0408] For example, the door (130) can be opened to form an angle of 30° in the vertical direction. In this case, dust, foreign matter, etc. can be prevented from entering the dishwashing space (121), while drying of the dishwashing space (121) and the dishwashing space (121) can be promoted.

[0409] When the door (130) is opened, the air inside the washing space (121) can be exchanged with the outside air. Since the air inside the washing space (121), which has been dried to a certain degree by the moisture-absorbing drying module (180), is at a relatively high temperature compared to the outside air, the exchange with the outside air can occur smoothly due to the difference in density.

[0410] Meanwhile, when the door (130) is opened, moisture in the washing space (121) is discharged to the outside, so the same effect as when the door fan (135) is operated can occur.

[0411] That is, the amount of moisture absorbed by the absorbent (185) is reduced, thereby reducing the energy required to regenerate the absorbent (185). By reducing the amount of absorbent (185) used, it is possible to reduce material costs and secure a large machine room (122), and effects such as increased durability of the dishwasher (100) may occur.

[0412] Meanwhile, if the door (130) is not opened immediately after the washing space (121) is dried by the moisture-absorbing drying module (180), and the door (130) is opened after the door fan (135) is operated, it is possible to prevent the internal moisture of the washing space (121) from being rapidly discharged to the outside.

[0413] Therefore, due to the rapid difference in humidity between the air inside the washing space (121) and the outside air, moisture discharged from the washing space (121) can be prevented from condensing indoors. This can maintain a pleasant indoor environment and increase user satisfaction.

[0414] In addition, moisture within the washing space (121) can be discharged in advance, thereby reducing the time required for drying to be completed after the door (130) is opened. This has the advantage of minimizing the entry of dust, foreign substances, etc. into the washing space (121) while the door (130) is open.

[0415] In addition, since the door (130) is opened after the door fan (135) is operated, the washing space (121) can be efficiently dried while reducing the influence of the external environment.

[0416] For example, in the summer, the air outside the dishwasher (100) may have relatively higher humidity than in winter. In this case, even if the door (130) is opened, the drying performance may be lower than in winter.

[0417] However, if moisture inside the washing space (121) is discharged in advance through the door fan (135), the drying delay caused by the high humidity of the outside air can be minimized even after the door (130) is opened, allowing for faster drying.

[0418] Meanwhile, the blower fan (183) of the moisture-absorbing drying module (180) can operate for a certain period of time after the door (130) is opened. When the blower fan (183) operates after the door (130) is opened, air flow is formed by the blower fan (183), and the circulation of air within the washing space (121) can be promoted.

[0419] Therefore, high-temperature air passing through the absorbent (185) flows through the washing space (121), evaporates the water on the surface of the tableware, and as it is exchanged with external air, drying proceeds smoothly and the drying effect can be maximized.

[0420] Additionally, the user may recognize that the drying process of the dishwasher (100) is not completely finished even when the door (130) is opened due to the continuous operation of the blower fan (183).

[0421] Referring to FIG. 16, the process and sequence of a dishwasher (100) according to the fifth embodiment of the present disclosure can be observed.

[0422] The dishwasher (100) may include a pre-washing cycle (S10), a washing cycle (S20), a rinsing cycle (S30), a heated rinsing cycle (S40), and a drying cycle (S50).

[0423] The pre-washing process (S10) may be a process of circulating washing water by driving the washing pump (145) without adding detergent. As a result, the first washing of the dishes may be performed.

[0424] The washing process (S20) may be a process of washing dishes by circulating washing water with detergent added. As a result, a second washing of the dishes may be performed.

[0425] The rinsing process (S30) and the heated rinsing process (S40) may be processes that circulate washing water to remove detergent remaining on the dishes. At this time, rinse may be supplied from the detergent supply device of the door (130).

[0426] Meanwhile, the washing process (S20), the rinsing process (S30), or the heating and rinsing process (S40) can be referred to as the main process.

[0427] When performing a rinsing process (S30) or a heating rinsing process (S40), heated washing water may be supplied. Accordingly, the tableware is heated to a predetermined temperature, and in the subsequent drying process (S50), the drying efficiency of the tableware can be improved and the drying time can be shortened.

[0428] The above-mentioned detailed procedures can be combined and adjusted to be omitted or performed redundantly depending on the settings or options of the selected washing course.

[0429] At this time, between each administration, a drainage administration of the washing water used during each administration and a water supply administration of supplying new washing water may be included.

[0430] For example, a water supply process may be included before the pre-washing process (S10). For example, a drainage process and a water supply process may be performed between the pre-washing process (S10) and the washing process (S20), between the washing process (S20) and the rinsing process (S30), and between the rinsing process (S30) and the heating and rinsing process (S40). For example, a drainage process may be performed between the heating and rinsing process (S40) and the drying process (S50).

[0431] Referring to FIG. 17, a drying process (S50) of a dishwasher (100) according to one embodiment of the present disclosure can be seen.

[0432] Meanwhile, although the drying process (S50) is depicted in this drawing as including a drainage process (S510), the drying process (S50) may not include a drainage process (S510). As previously mentioned, the drainage process (S510) may be performed between the heating and rinsing process (S40) and the drying process (S50).

[0433] A control method for a dishwasher (100) may include a step (S520) of operating a moisture-absorbing drying module (180). The step (S520) of operating the moisture-absorbing drying module (180) may be a step (S520) of drying a washing space (121) inside a tub (120) where dishes are placed. As a result, primary drying of the washing space (121) may proceed.

[0434] After the step (S520) of operating the moisture-absorbing drying module (180), the step (S530) of operating the door fan (135) may proceed. The step (S530) of operating the door fan (135) may be a step of exhausting the air of the washing space (121) to the outside. As a result, secondary drying of the washing space (121) may proceed.

[0435] Meanwhile, in the step (S520) where the moisture-absorbing drying module (180) operates, the moisture-absorbing drying module (180) may be stopped after operating for a certain period of time. Additionally, the step (S530) of operating the door fan (135) may be performed after the operation of the moisture-absorbing drying module (180) has stopped.

[0436] As a result, as described above, the amount of moisture absorbed by the moisture-absorbing drying module (180) can be reduced, thereby reducing the energy required for the regeneration of the absorbent (185), and the high temperature and high humidity air in the washing space (121) can be quickly discharged to the outside.

[0437] Additionally, the step of operating the door fan (135) (S530) may be shorter than the step of operating the moisture-absorbing drying module (180) (S520). As a result, sufficient drying of the washing space (121) can be achieved while consuming less power and shortening the drying time.

[0438] After the step (S530) of operating the door fan (135), the step (S540) of opening the door (130) may proceed. When the door (130) is opened, relatively dry outside air can naturally convect through the washing space (121), and drying of the washing space (121) can be promoted. As a result, a third drying of the washing space (121) may proceed.

[0439] After the step (S540) of opening the door (130), the step (S550) of drying the washing space (121) by operating the moisture-absorbing drying module (180) may proceed. As a result, the washing space (121) may undergo a fourth drying step. When the moisture-absorbing drying module (180) is stopped after operating for a certain period of time, the washing space (121) or the dishes may be completely dried.

[0440] Meanwhile, the moisture-absorbing drying module (180) can operate for a longer period after the step of opening the door (130) (S540) than before the step of opening the door (130) (S540).

[0441] In this case, the amount of moisture absorbed by the moisture-absorbing drying module (180) is reduced, so the energy required for regenerating the moisture absorbent (185) is reduced, and relatively dry air is continuously introduced into the washing space (121), so the drying time can be shortened.

[0442] Referring to FIG. 18, a drying process (S50a) of a dishwasher (100) according to another embodiment of the present disclosure can be seen.

[0443] In the control method of the dishwasher (100), a step (S520a) of simultaneously operating the moisture-absorbing drying module (180) and the door fan (135) may be performed at the beginning of the drying process (S50a). By simultaneously operating the moisture-absorbing drying module (180) and the door fan (135), the first drying of the washing space (121) may be performed.

[0444] In this case, as described above, moisture in the washing space (121) is discharged by the door fan (135) and moisture is absorbed through the moisture-absorbing drying module (180) at the same time, so that rapid drying can be achieved.

[0445] Afterwards, the step of opening the door (130) (S540) is performed so that the second drying of the washing space (121) can be performed, and the step of operating the moisture-absorbing drying module (180) (S550) is performed so that the third drying of the washing space (121) can be performed. When the moisture-absorbing drying module (180) is stopped after operating for a certain period of time, the washing space (121) or the dishes can be completely dried.

[0446] Other drying steps are the same as the control method of the dishwasher (100) according to the first embodiment of the present disclosure, so a detailed description thereof is omitted.

[0447] Referring to FIG. 19, a drying process (S50b) of a dishwasher (100) according to another embodiment of the present disclosure can be seen.

[0448] In the control method of the dishwasher (100), the step of operating the door fan (135) (S520b) may be performed before the step of operating the moisture-absorbing drying module (180) (S530b).

[0449] The step (S520b) of operating the door fan (135) is performed so that the washing space (121) can be dried first, and then the step (S530b) of operating the moisture-absorbing drying module (180) is performed so that the washing space (121) can be dried second.

[0450] In this case, as described above, the moisture absorption drying module (180) operates after a large amount of moisture has been discharged by the door fan (135), so the amount of moisture absorbed by the absorbent (185) can be reduced to the minimum. Therefore, the energy required for the regeneration of the absorbent (185) is reduced, and the amount of absorbent (185) used is reduced, thereby reducing material costs and maximizing space utilization.

[0451] Afterwards, the step (S540) of opening the door (130) is performed so that the washing space (121) can be dried for the third time, and the step (S550) of operating the moisture-absorbing drying module (180) is performed so that the washing space (121) can be dried for the fourth time. When the moisture-absorbing drying module (180) is stopped after operating for a certain period of time, the washing space (121) or the dishes can be completely dried.

[0452] Other drying steps are the same as the control method of the dishwasher (100) according to the first embodiment of the present disclosure, so a detailed description thereof is omitted.

[0453] Referring to FIG. 20, a graph of the steam discharge amount according to the operating time of the door fan (135) can be seen. This figure illustrates the steam discharge amount when the door fan (135) is operated from the start of the drying cycle (S50) immediately after the heating and rinsing cycle (S40) of the dishwasher (100) is finished.

[0454] Through the graph, it can be seen that steam is rapidly discharged out of the cleaning space (121) until the operating time of the door fan (135) is 5 minutes, and after the operating time of the door fan (135) is 5 minutes, the slope of the graph changes rapidly.

[0455] Therefore, if the operating time of the door fan (135) is within 5 minutes, a large amount of steam can be discharged to the outside of the washing space (121) through the door fan (135) without the drying time becoming excessively long.

[0456] Although preferred embodiments of the present disclosure have been illustrated and described above, the present disclosure is not limited to the specific embodiments described above. Various modifications are possible by those skilled in the art without departing from the essence of the present disclosure as claimed in the claims, and such modifications should not be understood individually from the technical spirit or perspective of the present disclosure.

Claims

1. A tub forming a washing space for accommodating dishes; It includes a moisture-absorbing drying module disposed on the side of the above tub, and The above moisture absorption and drying module is: A desiccant that absorbs moisture from the above washing space; A blower fan positioned above the above-mentioned absorbent and forming a downward airflow; and A dishwasher comprising a regenerative heater disposed between the above-mentioned desiccant and the above-mentioned blower fan.

2. In Paragraph 1, The above moisture absorption and drying module is: An intake port connecting the above washing space and the above blower fan; A discharge port is formed that communicates the above absorbent and the above washing space, and A dishwasher in which the above intake port and the above discharge port are positioned on the same side of the above tub.

3. In Paragraph 2, The above dishwasher is: A first rack placed in the above washing space and on which tableware is placed; It further includes a second rack positioned on top of the first rack, and The above intake port is, A dishwasher formed on the second rack above.

4. In Paragraph 2, The above dishwasher is: A first rack placed in the above washing space and on which tableware is placed; It further includes a second rack positioned on top of the first rack, and The above discharge port is, A dishwasher formed between the first rack and the second rack.

5. In Paragraph 1, The above dishwasher is, It further includes a door for opening and closing the above washing space, A dishwasher that, in a drying process for drying dishes placed in the washing space, operates the blower fan and then opens the door.

6. In Paragraph 5, The above dishwasher is, A dishwasher that operates the blower fan for a certain period of time after opening the door.

7. In Paragraph 1, The above dishwasher is: A door for opening and closing the above washing space; A dishwasher further comprising a door fan positioned in the door and discharging air from the washing space to the outside of the tub.

8. In Paragraph 7, The above dishwasher is: A first rack placed in the above washing space and on which tableware is placed; It further includes a second rack positioned on top of the first rack, and The above door is, A dishwasher comprising a door inlet formed above the second rack and communicating the washing space and the door fan.

9. In Paragraph 8, The above door inlet is a dishwasher formed adjacent to the other side of the tub opposite to one side of the tub where the moisture-absorbing drying module is placed.

10. A tub forming a washing space for accommodating dishes; A door for opening and closing the above washing space; A door fan disposed in the door and discharging air from the washing space to the outside of the tub; and It includes a moisture-absorbing drying module disposed on one side of the above tub and drying the washing space, and A dishwasher that, in a drying process for drying dishes placed in the washing space, operates the moisture-absorbing drying module and the door fan, and then opens the door.

11. In Paragraph 10, The above dishwasher is, A dishwasher that operates the moisture absorption and drying module for a certain period of time after opening the door.

12. In Paragraph 10, The above dishwasher is, A dishwasher that operates the door fan after operating the moisture absorption drying module before opening the door.

13. In Paragraph 12, The above dishwasher is, A dishwasher that stops the above moisture absorption drying module after operating it for a certain period of time and operates the above door fan for a certain period of time.

14. In Paragraph 13, The above door fan is a dishwasher that operates for a shorter period than the above moisture absorption drying module.

15. In Paragraph 10, The above dishwasher is, A dishwasher that operates the moisture absorption drying module after operating the door fan before opening the door.

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