Dishwasher

Abstract

The invention relates to a dishwasher. The present invention may comprise: a tub (15) having a washing chamber formed therein; and a drive module (20) disposed at the lower part of the tub (15) and provided with a lifting device (23) therein. In addition, the washing module (30) is provided with a machine chamber (31a) independent of the washing chamber, and the washing module (30) can spray washing water into the washing chamber. A dish rack module (70) in which a dish rack is housed can be raised and lowered by the raising and lowering device (23). At this time, the lower part of the dish rack module (70) can be supported by the lifting device (23). In this way, the drive module (20) for lifting the bowl rack module (70) supports the lower part of the bowl rack module (70), so that the storage space (S) of the bowl rack module (70) does not need to be sacrificed by the drive module (20). The dishwasher according to the present invention not only can provide convenience for opening the storage space (S) to the upper part, but also can provide a wide storage space (S).

Description

Technical Field

[0001] This invention relates to dishwashers. Background Technology

[0002] A dishwasher is a device that uses high-pressure jets of washing water to wash stored dishes before drying them. The dishwasher works by spraying high-pressure washing water into the washing tub containing the dishes, washing away food residue and other foreign matter adhering to the surfaces. This type of dishwasher is configured to filter out food residue contained in the washing water through a filter, allowing the reuse of the used washing water. Furthermore, by dissolving detergent in the washing water, food residue can be effectively separated.

[0003] This type of dishwasher can also be configured as a built-in type. For example, recently, to make full use of kitchen space, built-in dishwashers are being used, which are installed in a recessed manner in front of the sink. Only the dishwasher door and display are visible in front of the sink, while the rest of the dishwasher can be stored inside the sink.

[0004] At this point, the dish rack can be stored inside or removed from the sink through the dishwasher door. The door can rotate around its hinges to open or close the sink.

[0005] However, the door of this type of built-in dishwasher rotates significantly forward when opened, so ample space for rotation must be ensured in front of the sink. Therefore, built-in dishwashers present a challenge in fitting into narrow spaces.

[0006] To address this issue, dishwashers with a rising and lowering sink have been disclosed. Korean Utility Model Publication 20-2011-0006400 (Prior Technology 1), Korean Patent Publication 10-2014-0017136 (Prior Technology 2), and Chinese Patent Publication CN106993993A (Prior Technology 3) disclose dishwashers where the dish rack is exposed when the sink is raised. Since the dish rack is exposed when the sink is raised, there is no need for a forward-rotating door, thus requiring only a relatively narrow installation space.

[0007] However, according to prior art 1, the lifting unit for raising and lowering the basket is located at the rear of the casing, thereby reducing the washing space. Furthermore, the screw of the lifting unit is positioned across the washing space from the lower space where the drive motor is located, resulting in a structure that is not conducive to waterproofing. In prior art 1, the spray nozzle for spraying washing water rises and falls together with the dish storage section, making the washing water spraying structure complex. Moreover, when the dish storage section rises, the spray nozzle is also exposed, thus reducing aesthetic appeal.

[0008] According to prior art 2, the guide support member for raising and lowering the dish shelf is located at the rear, which prevents the rear space of the dishwasher from being used as a washing space. Furthermore, in prior art 2, since the guide support member is only located at the rear, the dish shelf loaded with heavy dishes is prone to tilting forward, potentially reducing operational reliability. Additionally, prior art 2 creates an empty space at the bottom for housing the drive motor, which effectively reduces the volume of the washing space located at the top.

[0009] According to prior art 3, the lifting column used to raise and lower the dish storage section is located in the center of the dishwasher, which reduces the washing space. Furthermore, the central location of the lifting column makes it inconvenient to store or remove dishes, and also hinders water circulation.

[0010] Furthermore, according to the aforementioned prior art 1, prior art 2, and prior art 3, when the dishwasher is positioned at the end of a sink adjacent to a wall, the direction for storing and removing dishes forms along the wall. This results in inconvenience when storing or removing dishes from the sink, as the dishes interfere with the wall surface. Summary of the Invention

[0011] Technical issues

[0012] The present invention was made to solve the problems in the prior art as described above. The object of the present invention is to enable the dish rack module for storing tableware to be raised and lowered in a pop-up manner, and to arrange the components for raising and lowering the dish rack module in the lower part of the dish rack module, thereby ensuring a larger washing room space.

[0013] Another object of the present invention is to enable the dish rack configured in the dish rack module to be stored / pulled out at an angle with reference to the front of the dishwasher.

[0014] Another object of the present invention is that multiple lifting rods support multiple points on the lower part of the bowl rack module, thereby distributing the weight of the bowl rack module.

[0015] Another object of the present invention is to provide multiple spray nozzles for washing dishes from multiple angles, and to ensure that some of the spray nozzles remain in the washing space and do not rise with the dish rack module.

[0016] Problem-solving methods

[0017] According to the features of the present invention for achieving the objectives described above, the dishwasher of the present invention may have a tub body with a washing chamber formed inside. A drive module equipped with a lifting device may be disposed at the lower part of the tub body. Furthermore, when the dish rack module for storing the dish rack is raised and lowered by the lifting device, it can move between a first position disposed within the washing chamber and a second position exposed to the outside after being removed from the washing chamber. The washing module can spray washing water into the interior of the washing chamber to wash the tableware stored in the dish rack.

[0018] At this point, the lower part of the aforementioned dish rack module can be supported by the aforementioned lifting device. Thus, the lower part of the dish rack module is supported by the aforementioned drive module, including the aforementioned lifting device, so that the storage space of the dish rack module is not sacrificed due to the drive module. Therefore, the dishwasher according to the present invention not only provides the convenience of opening the storage space upwards but also provides a wider storage space.

[0019] Furthermore, when the aforementioned dish rack module is moved to the second position, the dish rack inlet / outlet is exposed. At this time, the dish rack inlet / outlet can open diagonally between the front and side of the dish rack module. This diagonal placement / removal of the dish rack prevents interference between the dish rack and the wall, even if the dishwasher is located in a corner.

[0020] The aforementioned dish rack module may include multiple corner sections, and support rods may be configured in a portion of these corner sections. The remaining portion of the support rods in the corner sections may be omitted to form the dish rack inlet and outlet. Therefore, the dish rack configured in the aforementioned dish rack module can be stored and removed diagonally with the front of the dishwasher as a reference point.

[0021] Furthermore, the aforementioned dish rack module may include: an upper part that, when the dish rack module is in the first position, conceals the washing chamber; and a lower frame that forms a storage space with the upper part. The upper part and the lower frame can be connected by multiple support rods. A storage space for storing the dish rack can be formed between the multiple support rods. The side portion of the dish rack module is formed only by multiple support rods, making it easy to remove tableware and providing ample storage space.

[0022] Furthermore, at the first position of the aforementioned dish rack module, the plurality of support rods can be respectively positioned at the edge of the aforementioned washing chamber. This reduces the unused space created by the plurality of support rods.

[0023] Furthermore, the aforementioned support rods can be respectively arranged at n-1 or fewer of the n corners constituting the dish rack module. In this case, the corners with the aforementioned support rods can be omitted to form dish rack inlets and outlets for pulling out the dish rack. Thus, the dish rack arranged in the dish rack module can be stored and pulled out along the diagonal direction with the front of the dishwasher as a reference.

[0024] Furthermore, at the first position of the aforementioned dish rack module, the lower frame can form the bottom surface of the aforementioned washing chamber. A dish rack drain hole that opens towards the water collection tank disposed in the aforementioned machine chamber can be formed in the aforementioned lower frame.

[0025] Furthermore, when the aforementioned dish rack module is in the first position, the aforementioned lower frame can be stacked on top of the bottom of the aforementioned tub, and the aforementioned lower frame can form the bottom surface of the aforementioned washing chamber.

[0026] Additionally, a lower nozzle for spraying washing water into the lower part of the washing chamber can be configured on the upper part of the lower frame. This lower nozzle can be raised and lowered together with the dish rack module. This further improves the washing efficiency of the dishes located in the lower part of the washing chamber.

[0027] Furthermore, multiple bowl rack fixing parts can be provided on the edge of the aforementioned bowl rack, each of which is attached to the surface of a plurality of support rods.

[0028] Additionally, the aforementioned drive module may include a lifting motor and multiple lifting rods that rotate in conjunction with the lifting motor to achieve lifting. One end of each of the multiple lifting rods may be connected to the lower part of the aforementioned dish rack module.

[0029] Furthermore, a lower frame constituting the bottom surface of the washing chamber can be configured at the lower part of the aforementioned dish rack module. The aforementioned multiple lifting rods can each support different points of the lower frame. Thus, the aforementioned multiple lifting rods can stably support the weight of the aforementioned dish rack module by distributing its weight.

[0030] In addition, a portion of the aforementioned lifting rods can pass through the aforementioned machine room and support the lower part of the aforementioned bowl rack module.

[0031] Furthermore, the multiple support rods disposed on the edge of the aforementioned dish rack module can be configured to be positioned further outward than the aforementioned lifting rod from the washing chamber.

[0032] Furthermore, when the dish rack module is in the first position, the upper end of the support column and the bottom surface of the dish rack module are in close contact to form a contact surface. At this time, the contact surface can be formed to be higher than the bottom surface of the washing chamber. As a result, it is possible to prevent washing water remaining at the bottom of the washing chamber from leaking into the drive module through the support column.

[0033] Furthermore, a lifting sealing part can be disposed between the upper end of the support column and the bottom surface of the dish rack module. When the dish rack module is in the first position, the lifting sealing part can be compressed between the upper end of the support column and the bottom surface of the dish rack module.

[0034] Additionally, a support step recessed towards the upper part of the aforementioned dish rack module can be provided at the lower part of the dish rack module. When the dish rack module is in the first position, the upper end of the aforementioned support column can be positioned on the aforementioned support step.

[0035] Furthermore, the aforementioned drive module can be configured at the lower part of the aforementioned washing module.

[0036] Alternatively, the washing module may be equipped with a washing nozzle for spraying washing water. In this case, the washing nozzle may include: (i) a side nozzle, which is disposed on the side of the tub and sprays washing water on the side of the washing chamber; and (ii) a lower nozzle, which is disposed on the lower part of the dish rack module and moves up and down together with the dish rack module, spraying washing water in the lower part of the washing chamber.

[0037] Additionally, a water collection tank for storing washing water can be configured in the aforementioned machine compartment. When the aforementioned dish rack module is in the first position, the aforementioned side nozzle and the aforementioned lower nozzle are connected to the aforementioned water collection tank, enabling them to receive washing water.

[0038] Furthermore, a washing water supply unit connected to the aforementioned water collection tank can be provided in the aforementioned machine room. In this case, the aforementioned washing water supply unit may include: (i) a main connection port that opens toward the aforementioned water collection tank; (ii) a first connecting pipe that connects to the aforementioned main connection port and extends in the vertical direction; and (iii) a second connecting pipe that connects to the aforementioned main connection port, extends in the vertical direction, and has a flow path independent of the aforementioned first connecting pipe.

[0039] Additionally, a main sealing portion can be provided between the bottom surface of the aforementioned bowl rack module and the upper part of the aforementioned main connection port facing the bottom surface of the aforementioned bowl rack module. Simultaneously, a lower sealing portion can be provided between the aforementioned first connecting pipe and the aforementioned lower connector.

[0040] Furthermore, a control unit can be installed in the aforementioned machine room, and an operating unit can be installed on the upper part of the aforementioned bowl rack module. In this case, a wiring harness for connecting the control unit and the operating unit can be arranged inside the aforementioned support rod.

[0041] The following components can be respectively configured on the side of the aforementioned tub: (i) a side nozzle for spraying washing water into the interior of the washing chamber; (ii) a drying fan for spraying hot air into the interior of the washing chamber; and (iii) a water jacket for storing washing water and condensing and drying the interior of the washing chamber. In this case, the side nozzle, the drying fan, and the water jacket can be respectively configured on different sides of the aforementioned tub.

[0042] Invention Effects

[0043] The dishwasher according to the present invention, as described above, has the following effects.

[0044] In this invention, the storage space is opened when the dish rack module is raised and lowered in a pop-up manner. At this time, the lower part of the dish rack module is supported by the drive module that enables the raising and lowering of the dish rack module, so the drive module does not encroach on the storage space of the dish rack module. Thus, the storage space of the dish rack module is not sacrificed due to the drive module, so the dishwasher of this invention not only provides the convenience of opening the door upwards but also provides a wider storage space.

[0045] Furthermore, according to the present invention, all components constituting the drive module are arranged in the lower part of the dish rack module, so even if the dish rack module is raised, the drive module will not be exposed from any angle. Therefore, the aesthetics of the dishwasher can be improved.

[0046] Furthermore, in this invention, the dish rack configured in the dish rack module can be stored and pulled out diagonally with the front of the dishwasher as a reference. When the dish rack is stored and pulled out at an angle, even if the dishwasher is close to the wall, the dish rack can avoid interference from the wall, thus improving ease of use.

[0047] Furthermore, according to the present invention, the dishwasher can be installed close to the wall, thus increasing the flexibility of dishwasher installation.

[0048] Furthermore, the multiple lifting rods constituting the lifting module of the present invention can support multiple points on the lower part of the dish rack module. As a result, the weight of the dish rack module can be distributed to multiple parts of the lifting module, and even when heavy tableware is stored inside the dish rack module, the lifting module can stably support the dish rack module. Therefore, the operational reliability of the dishwasher can be improved.

[0049] Furthermore, the washing module of the present invention may include a lower nozzle and side nozzles, which can spray washing water onto the dishes from different angles. In this case, the lower nozzle rises and falls together with the dish rack module, but the side nozzles can remain fixed to the tub. This allows for the spraying of washing water from multiple angles, while simultaneously providing a relatively simple structure for supplying washing water to multiple nozzles.

[0050] In particular, if the lower nozzle among the multiple nozzles is designed to be height-adjustable, then when the dish rack module descends, the lower nozzle can be stacked directly above the water collection tank that stores the washing water. This allows for a shorter connection distance between the water collection tank and the lower nozzle, ensuring that hot washing water is supplied to the lower nozzle without heat loss.

[0051] Furthermore, when the dish rack module and the washing module move relative to each other in the vertical direction and come into close contact, the sealing part can be naturally compressed at the contact point. The compressed sealing part can improve water resistance between the dish rack module and the washing module.

[0052] Furthermore, the side nozzles remain within the drum, while only the lower nozzles rise and fall, and these lower nozzles can be positioned at the bottom of the dish rack module. As a result, even when the dish rack module is raised and exposed, the portion of the lower nozzles exposed to the outside can be minimized. This improves nozzle durability and enhances the dishwasher's aesthetics.

[0053] Furthermore, in this invention, the drive module for raising and lowering the dish rack module and the washing module for washing dishes can be configured at different heights. Separating the drive module and the washing module at different heights improves the dishwasher's assemblability and maintainability.

[0054] Furthermore, in this invention, side nozzles, a drying fan, and a water jacket can be provided, each arranged vertically on different sides of the tub. This provides multiple components that perform different functions while ensuring a sufficiently large washing chamber volume within the tub.

[0055] Furthermore, in this invention, an operating unit can be installed in the upper part of the dish rack module, which functions as a door. The user can input commands to the dishwasher or identify its status through this operating unit. The operating unit can then be connected to a control unit located in the mechanical compartment, and the two units can be connected via a wiring harness housed inside the support rod that serves as the support for the dish rack module. Therefore, the operating unit can be installed in the upper part without exposing the wiring harness, thereby simultaneously improving both the convenience and aesthetics of the dishwasher. Attached Figure Description

[0056] Figure 1 This is a perspective view showing an embodiment of a dishwasher according to the present invention.

[0057] Figure 2 This shows the bowl rack module from Figure 1 A three-dimensional diagram of the rising state.

[0058] Figure 3 This shows the settings in an embedded manner. Figure 1 A 3D view of the dishwasher's status.

[0059] Figure 4 It is shown Figure 3 A 3D view of the bowl rack module in its raised state.

[0060] Figure 5 It is shown Figure 4 A 3D view of the bowl rack module with the rack pulled out.

[0061] Figure 6 From Figure 1 Remove the casing and drum to reveal a 3D view of the dishwasher's interior.

[0062] Figure 7 From Figure 1 Remove the casing and barrel, from the... Figure 6 Different angles show a 3D view of the inside of the dishwasher.

[0063] Figure 8 It is shown Figure 7 A 3D view of the bowl rack module in its raised state.

[0064] Figure 9 It is a breakdown of the components Figure 1 A perspective view of a drive module, washing module, and dish rack module according to one embodiment.

[0065] Figure 10 It is shown Figure 1 A perspective view of the configuration of a washing module according to one embodiment.

[0066] Figure 11 It is shown Figure 1 A cross-sectional view of the side structure of one embodiment.

[0067] Figure 12 It is shown Figure 11 A cross-sectional view of the middle bowl support module in its raised state.

[0068] Figure 13 It is shown in magnification Figure 11 A cross-sectional view of part A.

[0069] Figure 14 It shows the composition Figure 1 A plan view of the bottom of the washing chamber in one embodiment.

[0070] Figure 15 It shows the composition Figure 1 A perspective view of a drying fan structure according to one embodiment.

[0071] Figure 16 It shows the composition Figure 1 A perspective view of a bowl rack module structure according to one embodiment.

[0072] Figure 17 It shows the composition Figure 1 A plan view of the bowl rack module in one embodiment, showing the state of the bowl rack separated.

[0073] Figure 18 It shows the composition Figure 1 A perspective view of the state of the bowl rack module in one embodiment, showing the protective mesh and filter separated.

[0074] Figure 19 It shows the use of the structure Figure 1 A cross-sectional view of the connection structure for supplying washing water to the lower nozzle and the side nozzle in one embodiment.

[0075] Figure 20 It is shown Figure 19 A cross-sectional view of the middle bowl support module in a raised position with the lower nozzle and connector separated from each other.

[0076] Figure 21 It shows the structure Figure 1 A cross-sectional view of the path through which the connector supplies washing water in one embodiment.

[0077] Figure 22 These are respectively shown in the configuration Figure 1 A front view of a support rod in one embodiment, showing the wire harness housed inside the support rod (a) and in another embodiment (b) being pulled out of the support rod.

[0078] Figure 23 It shows the composition Figure 1 A cross-sectional view of the internal structure of the support rod in one embodiment.

[0079] Figure 24 This is a cross-sectional view showing a second embodiment of a dishwasher according to the present invention.

[0080] Figure 25 This is a perspective view showing a third embodiment of a dishwasher according to the present invention.

[0081] Figure 26 This is a conceptual diagram illustrating a fourth embodiment of a dishwasher according to the present invention.

[0082] Figure 27 This is a conceptual diagram illustrating a fifth embodiment of a dishwasher according to the present invention. Detailed Implementation

[0083] Hereinafter, some embodiments of the present invention will be described in detail with reference to the exemplary accompanying drawings. It should be noted that when labeling the constituent elements in the various drawings, the same constituent elements will have the same reference numerals even if shown in different drawings. Furthermore, in describing embodiments of the present invention, detailed descriptions of related well-known structures or functions will be omitted if it is determined that such detailed descriptions may hinder understanding of the embodiments of the present invention.

[0084] This invention relates to dishwashers. According to the invention, the dish rack module 70, which houses the tableware, is raised and lowered in a pop-up manner, while simultaneously opening the storage space S upwards. When the dish rack module 70 is lowered and stored inside the dishwasher, only the upper part 88, which is the upper surface of the dish rack module 70, is exposed. Therefore, in this invention, there is no need to leave empty space in front of the dishwasher for opening the door. Embodiments of the invention will now be described focusing on the structure related to the raising and lowering of the dish rack module 70.

[0085] Figure 1 An embodiment of a dishwasher according to the present invention is shown. Figure 2 It shows Figure 1 The bowl rack module in the middle is in a raised state. (Comparison) Figure 1 and Figure 2 When the aforementioned dish rack module 70 is stored inside the dishwasher ( Figure 1 The overall height of the dishwasher is relatively lower. Only the upper part 88 of the dish rack module 70, described below, is exposed at the top of the dishwasher. When the dishwasher is installed in a recessed manner in the sink 1, the upper part 88 can form a continuous plane with the upper surface of the sink 1. For reference, the lowered state of the dish rack module 70 is defined as the first position, and the raised state of the dish rack module 70 is defined as the second position. In this case, if the dish rack module 70 is in the first position, the storage space S of the dish rack module 70 can become the washing chamber.

[0086] Additionally, when the aforementioned bowl rack module 70 rises ( Figure 2 As a result, the overall height of the dishwasher increases. When the dish rack module 70 rises, the storage space S inside the dish rack module 70 can be exposed. Thus, the dish rack 90 stored in the storage space S and the tableware (not shown) stored in the dish rack 90 are also exposed.

[0087] like Figure 2As shown, when the aforementioned dish rack module 70 is raised, only the multiple dish racks 90 are exposed, along with the multiple support rods C arranged at the corners. The washing module 30 for washing dishes and the drive module 20 for raising and lowering the aforementioned dish rack module 70 are both located at the bottom and are not exposed externally. More precisely, both the washing module 30 and the drive module 20 can be arranged at the bottom in a state where they are enclosed by the housing 10.

[0088] In this embodiment, the exterior of the dishwasher can be formed by the housing 10. The housing 10 can cover the exterior of the dishwasher. An empty space can be formed inside the housing 10. The tub 15, the washing module 30, and the drive module 20 described below can be disposed in the empty space. When the dishwasher is embedded in the sink 1 or the like, the housing 10 can be covered by the sink 1 or the like. The housing 10 can also be regarded as a chassis that constitutes the outer surface of the dishwasher.

[0089] In this embodiment, the housing 10 may have a generally square prism shape. The housing 10 may have four sides 11. The upper part of the housing 10 is open, thus the upper part of the housing 10 can serve as the entrance for the lifting and lowering of the bowl rack module 70. The lower part of the housing 10 may also be open. The lower part of the housing 10 can be shielded by the drive module 20.

[0090] Wheels 17 can be disposed on the lower part of the housing 10. The wheels 17 are components used to easily move the dishwasher; in this embodiment, the wheels 17 can be fixed to the bottom surface of the drive module 20. Alternatively, the wheels 17 can be omitted.

[0091] A tub 15 can be disposed inside the housing 10. The housing 10 can be considered an outer case, and the tub 15 an inner case. A washing chamber can be disposed inside the tub 15. Washing water can be sprayed into the washing chamber to wash the dishes. Therefore, when the dish rack module 70 is lowered, it can be disposed within the washing chamber. In other words, the dish rack module 70 can be disposed inside the washing chamber, which is the internal space of the tub 15. At this time, the bottom surface of the dish rack module 70 can become the bottom surface of the washing chamber.

[0092] Figures 3 to 5 The images sequentially show the state in which the dishwasher is installed and the state in which multiple dish racks 90 are removed from the dishwasher. First, refer to... Figure 3 The image shows a dishwasher configured in a recessed manner within sink 1. In this embodiment, the dishwasher can be configured in a corner (corner). A corner can refer to the portion where two walls meet. Figure 3The middle arrow ① indicates the direction in which the aforementioned bowl rack module 70 rises.

[0093] Reference Figure 4 The diagram shows the dish rack module 70 in its raised state. When the dish rack module 70 is raised, it can be positioned higher than the surrounding sink 1. Additionally, it exposes the storage space S and allows multiple dish racks 90 to be pulled out. The dish racks 90 can hold tableware, and the tableware can be pulled out along with the dish racks 90. Figure 4 The middle arrow ② indicates the direction in which the bowl rack can be pulled out at 90 degrees.

[0094] As described below, the above-mentioned bowl rack module 70 may include multiple support rods C (refer to...). Figure 2 The aforementioned support rods C can be considered as pillars supporting the aforementioned dish rack module 70. The aforementioned support rods C can be positioned at the corners of the aforementioned dish rack module 70. Furthermore, the space between the aforementioned support rods C can be considered as the aforementioned storage space S.

[0095] At this point, the support rod C can be omitted from a portion of the corner of the aforementioned dish rack module 70. A dish rack inlet / outlet, allowing the dish rack 90 to be pulled out, can be formed in the portion where the support rod C is omitted. Figure 4 Based on this, the support rod C is omitted below the operating part 89 formed in the upper part 88, through which the bowl rack 90 can be pulled out or stored.

[0096] Figure 5 The diagram shows the state in which the dish rack 90 is pulled out through the aforementioned dish rack inlet and outlet. The dish racks 90 can be pulled out diagonally, that is, obliquely with respect to the front of the dishwasher. When the dishwasher is positioned in a corner, it will face two walls; if the dish racks 90 move diagonally, interference with the two walls can be prevented.

[0097] like Figure 5 As shown, in this embodiment, the aforementioned dish rack module 70 may include four corners, and multiple support rods C may be configured at three of these corners. Additionally, a dish rack inlet / outlet may be formed at the corners where the multiple support rods C are not configured. This structure will be described in more detail below.

[0098] Figure 6 and Figure 7 The internal structure of the dishwasher according to this embodiment is shown from different angles. For reference, in Figure 6 and Figure 7 The aforementioned housing 10 is omitted, and the aforementioned tub 15 is shown in dashed lines. The aforementioned drive module 20, the aforementioned washing module 30, and the aforementioned dish rack module 70 constituting the dishwasher are all shown.

[0099] In this embodiment, the drive module 20, the washing module 30, and the dish rack module 70 can be stacked at different heights. The drive module 20 can be positioned at the bottom, and the dish rack module 70 can be positioned at the top. The washing module 30 can be positioned between the drive module 20 and the dish rack module 70. Both the drive module 20 and the washing module 30 remain fixed and can therefore be considered as a single fixed unit.

[0100] First, let's describe the drive module 20. The drive module 20 can raise and lower the dish rack module 70. The drive module 20 is located at the lower part of the dish rack module 70, so that even when the dish rack module 70 is raised, it will not be exposed to the outside. More precisely, the lifting rod P constituting the drive module 20 can support the bottom surface of the dish rack module 70, thereby preventing the exposure of many components of the drive module 20.

[0101] Meanwhile, the drive module 20 does not encroach on the storage space S of the dish rack module 70, so the volume of the storage space S is not reduced due to the drive module 20. That is, the lower part of the dish rack module 70 is supported by the drive module 20 used to raise and lower the dish rack module 70, so there is no need to sacrifice the storage space S of the dish rack module 70 due to the drive module 20. Thus, the dishwasher of the present invention can provide the convenience of opening the storage space S upward and a spacious storage space S.

[0102] The aforementioned lifting rods P can pass through the interior of the washing chamber during the process of raising the dish rack module 70. In this embodiment, the plurality of lifting rods P rise and fall along the corner portion of the washing chamber, thus minimizing interference between the washing chamber and the lifting rods P.

[0103] The drive module 20 may include a drive frame 21. The drive frame 21 forms the skeleton of the drive module 20. The drive frame 21 may have a generally rectangular shape. A drive space 21a may be formed inside the drive frame 21. The drive space 21a may also be considered as a space for configuring the lifting device 23 described later. The plurality of wheels 17 described above may also be fixed to the bottom surface of the drive frame 21.

[0104] A lifting device 23 can be configured on the drive frame 21. The lifting device 23 can raise and lower the dish rack module 70. For example, the lifting device 23 can use electricity to raise and lower the dish rack module 70. Power can be received from outside the dishwasher.

[0105] The aforementioned lifting device 23 may include a lifting motor 24. The lifting motor 24 can generate rotational force. The lifting motor 24 can be controlled by a control unit (not shown). Multiple lifting motors 24 may be provided; in this embodiment, the drive module 20 may include two lifting motors 24. For reference, the control unit may be located in the machine room 31a. The control unit can control components such as the circulation pump 40 and the drainage pump 45 located in the machine room 31a, as well as the lifting motors 24.

[0106] Multiple support columns 25 and 26 can be provided on the aforementioned lifting device 23. These support columns 25 and 26 can extend in the lifting direction of the aforementioned bowl rack module 70. The support columns 25 and 26 can support the aforementioned barrel body 15 from below. Furthermore, the support columns 25 and 26 can be considered as a box enclosing the aforementioned lifting rods P.

[0107] In this embodiment, four support columns 25 and 26 are provided. These four support columns 25 and 26 can be respectively disposed at the four corners of the drive frame 21. The four support columns 25 and 26 can be divided into two drive columns 25 and two driven columns 26. The drive columns 25 and driven columns 26 are the same in that they support the barrel 15 from below, but only the drive columns 25 can be equipped with a lifting rod P that operates via the lifting motor 24. (Refer to...) Figure 9 The image shows the lifting rod P protruding slightly from the drive column 25. The structure of the lifting rod P will be described further below.

[0108] The two driven columns 26 do not contain a lifting rod P, but can be equipped with a guide rod P'. The guide rod P' can only move up and down together with the lifting rod P, and will not be linked with the lifting motor 24. Figure 9 The diagram shows the guide rod P' protruding slightly from the driven column 26. The guide rod P' reduces the number of lifting motors 24, and the drive module 20 stably supports multiple points of the bowl rack module 70. Alternatively, the lifting rod P or guide rod P' can be omitted entirely within the multiple driven columns 26. Yet another example: all four support columns 25 and 26 are composed of drive columns 25.

[0109] The lifting device 23 described above can be configured as a linear actuator. As a linear actuator, the lifting device 23 can convert the rotational motion of the lifting motor 24 into the linear motion of the lifting rod P. In this embodiment, the lifting device 23 can be a screw jack incorporating a worm gear (not shown). For example, a gearbox (not shown) can be provided inside the lifting device 23. The gearbox can contain a worm (not shown) and a worm gear meshing with the worm. When the lifting motor 24 rotates the worm, the worm gear meshing with the worm rotates, and the lifting rod P meshing with the worm gear can move linearly as the worm gear rotates.

[0110] At this point, the aforementioned lifting rod P can be constructed from a helical shaft with threads formed on its outer surface. The aforementioned lifting rod P can rotate in conjunction with the rotation of the aforementioned worm gear, while simultaneously moving linearly. The aforementioned multiple lifting rods P can be synchronized with each other through a control unit (not shown) so that they rotate and rise and fall at the same speed.

[0111] As another example, the lifting device 23 described above can also be a nut-type lifting actuator. The nut (not shown) can engage with a lead screw (not shown) rotated by the lifting motor 24 to achieve lifting. The lifting rod P is connected to the nut, so that the lifting rod P can rise and fall together with the nut. As yet another example, the lifting device 23 can use a ball screw instead of a lead screw.

[0112] The upper end Pa of the aforementioned lifting rod P and the upper end Pa of the aforementioned guide rod P' can be connected to the bottom surface of the aforementioned bowl rack module 70. (Refer to...) Figure 13 A groove Pa' can be formed at the upper end Pa of the lifting rod P. This groove Pa' can be connected to a frame hole 71c formed in the lower frame 71 of the bowl rack module 70, as described below. If a fastener such as a bolt (not shown) passes through the frame hole 71c and is fastened to the groove Pa', the upper end Pa of the lifting rod P can be fixed to the lower frame 71 of the bowl rack module 70. Thus, the bowl rack module 70, supported by the lifting rod P, can move up and down via the lifting rod P. Although not shown in the drawings, the guide rod P' is also fixed to the lower frame 71 in the same manner.

[0113] Refer again Figure 7The upper ends 25a of the drive column 25 and the upper ends 26a of the driven column 26 are respectively disposed in the machine chamber 31a. The upper ends 25a of the drive column 25 and the upper ends 26a of the driven column 26 can be connected to the bottom surface of the washing chamber after passing through the machine chamber 31a. In other words, it can be considered that the upper ends 25a of the drive column 25 and the upper ends 26a of the driven column 26 extend to the bottom surface of the tub 15. The bottom surface of the tub 15 can be supported by the upper ends 25a of the drive column 25 and the upper ends 26a of the driven column 26.

[0114] The upper ends Pa of the lifting rod P and the upper ends Pa of the guide rod P', which protrude from the upper ends 25a of the drive column 25 and the upper ends 26a of the driven column 26 respectively, can be connected to the lower frame 71 of the bowl rack module 70 after passing through the barrel body 15. (Refer to...) Figure 12 It can be observed that the upper end Pa of the lifting rod P and the upper end Pa of the guide rod P' rise, thereby causing the bowl rack module 70 to rise together. At this time, the upper end 25a of the drive column 25 and the upper end 26a of the driven column 26 still support the lower part of the barrel body 15.

[0115] At this time, washing water is filled into the washing chamber formed inside the tub 15, so it is necessary to prevent the washing water from flowing into the drive module 20 through the upper ends 25a and 26a of the support columns 25 and 26. For this purpose, a lifting sealing part 28 can be provided between the upper ends 25a and 26a of the support columns 25 and 26 and the bottom surface of the dish rack module 70. Figure 8 The diagram shows a state in which a lifting sealing part 28 is arranged at the upper ends 25a and 26a of the aforementioned support columns 25 and 26.

[0116] When the aforementioned dish rack module 70 is in the first position, the aforementioned lifting sealing part 28 can be compressed between the upper ends 25a, 26a of the aforementioned support columns 25, 26 and the bottom surface of the aforementioned dish rack module 70. Thus, the aforementioned lifting sealing part 28 naturally performs a waterproof function between the aforementioned support columns 25, 26 and the aforementioned dish rack module 70. Figure 13 The image shows the state in which the aforementioned lifting seal 28 is disposed between the upper end 25a of the aforementioned drive column 25 and the aforementioned lower frame 71.

[0117] When the aforementioned bowl rack module 70 is in the first position, the upper ends 25a and 26a of the aforementioned support columns 25 and 26 are in close contact with the bottom surface of the aforementioned bowl rack module 70, thereby forming a contact surface M. In this embodiment, the aforementioned lifting sealing part 28 protrudes upward beyond the upper ends 25a and 26a of the aforementioned support columns 25 and 26, so it can be considered that the aforementioned contact surface M is formed between the upper surface of the aforementioned lifting sealing part 28 and the bottom surface of the lower frame 71.

[0118] At this time, the aforementioned contact surface M can be formed to be higher than the bottom surface of the aforementioned washing chamber. That is, the height of the aforementioned contact surface M can be formed to be higher than the height of the bottom surface of the aforementioned washing chamber by a predetermined height h (refer to...). Figure 13 Therefore, even when the washing process is paused, water remaining on the bottom surface of the washing chamber can be prevented from flowing into the drive module 20 through the upper ends 25a and 26a of the multiple support columns 25 and 26.

[0119] Next, the washing module 30 will be described. The washing module 30 can spray washing water into the washing chamber to wash the tableware. In this embodiment, the washing module 30 can blow high-temperature hot air into the washing chamber to dry the tableware, and can also use the water jacket 68 to condense and dry the inside of the washing chamber. Thus, the washing module 30 can provide multiple functions.

[0120] The washing module 30 described above can be configured at a different height than the drive module 20 described above. (See reference...) Figure 11 The drive module 20 can be configured at the bottom of the dishwasher, and the washing module 30 can be configured above the drive module 20. Additionally, a dish rack module 70 can be configured above the washing module 30.

[0121] like Figure 8 As shown, the frame of the washing module 30 can be formed by the washing frame 31. Similar to the drive frame 21, a predetermined space can be formed inside the washing frame 31. This space can be referred to as a mechanical chamber 31a for arranging the circulation pump 40, drain pump 45, etc. The washing frame 31 can be formed into a generally hexahedral shape with an open top.

[0122] The washing frame 31 can be separated from the bottom surface of the tub 15. It can be considered that the bottom surface of the washing frame 31 is separate from the bottom surface of the tub 15, and a mechanical chamber 31a is provided between them. The upper end 25a of the drive column 25 and the upper end 26a of the driven column 26 can be arranged between the washing frame 31 and the tub 15. The upper end 25a of the drive column 25 and the upper end 26a of the driven column 26 can respectively support the bottom surface of the tub 15 after passing through the mechanical chamber 31a.

[0123] A water collection tank 35 can be configured in the aforementioned machine compartment 31a. The water collection tank 35 can be located at the lower part of the aforementioned tub body 15 for storing washing water. A storage section for storing washing water can be formed inside the water collection tank 35. A water collection tank cover 35a can be provided in the water collection tank 35 to distinguish the storage section from the aforementioned tub body 15. The water collection tank cover 35a can be considered as a connecting part connecting the water collection tank 35 and the bottom of the aforementioned tub body 15. Reference numeral 36 shows a turbidity sensor for detecting washing water contamination.

[0124] At this point, the bottom surface of the aforementioned tub 15 can be inclined. Furthermore, the aforementioned water collection tank 35 can be configured such that its upper opening corresponds to a relatively low area on the bottom surface of the aforementioned tub 15. Thus, the washing water can flow back into the storage section of the aforementioned water collection tank 35 along the bottom surface of the aforementioned tub 15.

[0125] A circulation pump 40 and a drain pump 45 can be installed in the aforementioned machine compartment 31a. The circulation pump 40 supplies washing water stored in the storage section of the aforementioned water collection tank 35 to the washing nozzles N. When the washing water flows back into the storage section of the aforementioned water collection tank 35, the circulation pump 40 supplies the incoming washing water back into the washing chamber to circulate the washing water. The circulation pump 40 may include components such as a circulation motor (not shown) and an impeller. The circulation pump 40 can be operated under the control of the aforementioned control unit. Although not shown in the drawings, a temperature sensing unit for sensing the temperature of the washing water can be installed inside the aforementioned circulation pump 40. In addition, an electric heater (not shown) can be installed inside the aforementioned circulation pump 40 to heat the circulating washing water. For reference, the electric heater can also be installed inside the aforementioned water collection tank 35.

[0126] The aforementioned drain pump 45 is capable of discharging washing water stored in the aforementioned storage section to the outside. The aforementioned drain pump 45 can be connected to the aforementioned water collection tank 35. The aforementioned drain pump 45 may include components such as a drain motor (not shown) and an impeller. The aforementioned drain pump 45 can be operated under the control of the aforementioned control unit. Reference numeral 46 indicates a drain pipe connected to the drain pump 45.

[0127] Reference Figure 19 and Figure 20 A washing water supply unit 50 can be provided in the aforementioned water collection tank cover 35a. The washing water supply unit 50 can deliver the washing water from the aforementioned water collection tank 35 to the washing nozzles N. In this embodiment, the washing nozzles N include a lower nozzle 75 and a side nozzle 55, and the washing water supply unit 50 can distribute the washing water to the lower nozzle 75 and the side nozzles 55.

[0128] The aforementioned washing water supply unit 50 can deliver a portion of the washing water supplied by the aforementioned circulation pump 40 to the aforementioned side nozzle 55, and the remaining portion to the aforementioned lower nozzle 75. At this time, the aforementioned lower nozzle 75 rises and falls together with the aforementioned dish rack module 70, so the aforementioned lower nozzle 75 can be in close contact with the aforementioned washing water supply unit 50 or separate from the aforementioned washing water supply unit 50. When the aforementioned lower nozzle 75 is in close contact with the aforementioned washing water supply unit 50, the aforementioned lower nozzle 75 can be connected to the aforementioned washing water supply unit 50.

[0129] Reference Figure 19 A main connection port 51 can be provided in the aforementioned washing water supply section 50. The main connection port 51 opens toward the aforementioned water collection tank 35, thereby receiving washing water from the aforementioned water collection tank 35. The main connection port 51 can be a pipe structure that opens in the vertical direction.

[0130] The lower end of the aforementioned main connection port 51 faces the water collection tank 35 located at the bottom. Figure 19 (Not shown in the image) The main connection port 51 is open, and its interior can branch into a first connecting pipe 52 and a second connecting pipe 53. The first connecting pipe 52 is connected to the lower nozzle 75 and can be a pipe structure extending in the vertical direction. The upper end of the first connecting pipe 52 can be connected to the lower connector 73 described below. For this purpose, the upper end of the first connecting pipe 52 can protrude upwards from the washing water supply section 50.

[0131] The second connecting pipe 53 can be connected to the main connecting port 51. Similar to the first connecting pipe 52, the second connecting pipe 53 can be a pipe structure extending vertically. The second connecting pipe 53 can supply washing water to the side nozzle 55. The side guide 56, described below, can be connected to the second connecting pipe 53. The washing water from the water collection tank 35 can be sequentially transferred through the main connecting port 51, the second connecting pipe 53, and the side guide 56 to the side nozzle 55.

[0132] The first connecting pipe 52 and the second connecting pipe 53 can be arranged in parallel with each other. In this embodiment, both the first connecting pipe 52 and the second connecting pipe 53 can be arranged inside the main connecting port 51.

[0133] A main sealing portion 52' can be provided between the bottom surface of the aforementioned dish rack module 70 and the upper part of the main connection port 51 facing the bottom surface of the aforementioned dish rack module 70. The main sealing portion 52' can prevent washing water from leaking to the periphery of the main sealing portion 52'. The main sealing portion 52' can be disposed between the upper end of the aforementioned main connection port 51 and the bottom surface of the aforementioned lower frame 71. Thus, when the aforementioned dish rack module 70 is in the first position, the main sealing portion 52' can be compressed between the aforementioned main connection port 51 and the aforementioned lower frame 71. In this embodiment, the main sealing portion 52' is fixed to the upper end of the aforementioned main connection port 51. As another example, the main sealing portion 52' can also be disposed on the bottom surface of the aforementioned lower frame 71. The main sealing portion 52' can work together with the lower sealing portion 74 described below to seal the washing water supply portion 50.

[0134] Refer again Figure 10 and Figure 11 A side nozzle 55, constituting a washing nozzle N, can be provided on the aforementioned tub body 15. The side nozzle 55 can constitute the aforementioned washing module 30. The side nozzle 55 sprays washing water into the washing chamber, thereby removing foreign objects adhering to the tableware.

[0135] A side guide 56 for conveying washing water from the water collection tank 35 can be provided on the side nozzle 55. The side guide 56 can extend vertically along the surface of the tub body 15. The side guide 56 is a hollow tube structure that can connect the washing water supply unit 50 to the first side arm 58 and the second side arm 59.

[0136] The first side arm 58 and the second side arm 59 can extend in the left-right direction at different heights. The first side spray nozzle 58a and the second side spray nozzle 59a can be opened at the first side arm 58 and the second side arm 59, respectively. Washing water can be sprayed into the washing chamber through the first side spray nozzle 58a and the second side spray nozzle 59a. Multiple first side spray nozzles 58a and multiple second side spray nozzles 59a can be formed. Alternatively, either the first side arm 58 or the second side arm 59 can be omitted.

[0137] Reference Figure 19The side guide 56 may include a first guide flow path 56a and a second guide flow path 56b. The first guide flow path 56a may extend in the left-right direction. The second connecting pipe 53 and the second guide flow path 56b may be connected to both ends of the first guide flow path 56a, respectively. Furthermore, the second guide flow path 56b may extend in the up-down direction. The first connecting pipe 52, the first side arm 58, and the second side arm 59 may be connected to both ends of the second guide flow path 56b, respectively.

[0138] Reference Figure 9 and Figure 10 A drying fan 60 can be installed in the washing module 30. The drying fan 60 can spray unheated air (cold air) or heated air (hot air) into the washing chamber. The control unit controls the operation of the heating unit 66 provided in the drying fan 60, so that the drying fan 60 can spray cold air or hot air into the washing chamber.

[0139] The aforementioned drying fan 60 may include a blower housing 61, a blower fan 62, a heating element 66, and a guide duct 63. (See reference...) Figure 15 A blower fan 62 and a heating element 66 can be disposed inside the blower housing 61. The blower housing 61 can form an airflow path through which the air ejected by the blower fan 62 passes to the heating element 66. In addition, this airflow path can be connected to the guide pipe 63.

[0140] The aforementioned guide pipe 63 can extend vertically along the surface of the aforementioned barrel 15. An airflow path for airflow from the aforementioned blower fan 62 can be formed inside the aforementioned guide pipe 63. A blower nozzle section 65 can be formed at the outlet of the aforementioned airflow path. Figure 15 The arrow in the image indicates the direction in which air is ejected through the blower nozzle 65.

[0141] Reference Figure 10 A water jacket 68 can be installed on the side of the aforementioned tub body 15. Washing water can be stored inside the water jacket 68. The water jacket 68 can use the low-temperature washing water to condense and dry the interior of the washing chamber. Moisture in the high-temperature steam inside the washing chamber can condense into water droplets and be discharged after contact with the low-temperature washing water in the water jacket 68. After condensation and drying by the water jacket 68, the aforementioned dish rack module 70 rises to a predetermined height, and the upper door 88 automatically opens to expel odors and remaining water vapor.

[0142] Although not shown in the accompanying drawings, a water supply pipe for the inflow of washing water and a water supply valve for opening or closing the water supply pipe can be provided in the water jacket 68. The control unit can control the water supply valve to supply washing water into the water jacket 68. When a preset amount of washing water has been supplied into the washing water storage compartment of the water jacket 68, the control unit can control the water supply valve to block the flow path.

[0143] On the other hand, although not shown in the attached drawings, components constituting a heat pump, namely a compressor, condenser, evaporator, and expansion valve, can be arranged in the aforementioned mechanical chamber 31a. The refrigerant compressed by the compressor moves to the condenser, heating the bottom surface of the tub 15 and the air inside the tub 15. The air heated by the condenser moves to the upper region of the washing chamber via natural convection. As the heated air moves upward, it comes into contact with the tableware stored in the dish rack, thereby evaporating moisture from the surface of the tableware, and the air inside the washing chamber becomes hot and humid.

[0144] At this time, the temperature of the inner wall of the tub 15 adjacent to the water jacket 68 is relatively lower than that of other walls. The hot and humid air inside the washing chamber condenses upon contact with the inner wall adjacent to the water jacket 68. The condensate on the wall moves downwards and can be collected inside the water collection tank 35. As another embodiment, an electric heater can be installed in the dishwasher to replace the heat pump. As yet another embodiment, both the heat pump and the electric heater can be installed.

[0145] In this embodiment, the side nozzle 55, the drying fan 60, and the water jacket 68 can be respectively configured on different sides of the barrel 15. (Refer to...) Figure 14 The diagram shows the side nozzles 55, the drying fan 60, and the water jacket 68 erected on different sides of the tub 15. As a result, the dishwasher, despite having multiple components performing different functions, can still ensure a spacious washing chamber within the tub 15.

[0146] At this point, the aforementioned drying fan 60 and the aforementioned water jacket 68 can be configured to face each other. Thus, the high-temperature air ejected from the drying fan 60 can flow towards the water jacket 68 after drying the tableware. Furthermore, the high-temperature, humid air flowing towards the periphery of the water jacket 68 can condense around the water jacket 68.

[0147] Next, the dish rack module 70 will be described. The dish rack 90 can be housed inside the dish rack module 70. The dish rack module 70 can be raised and lowered while housing the dish rack 90. ​​The dish rack module 70 can be raised and lowered via the drive module 20 while supported at its lower part.

[0148] When the dish rack module 70 is lowered and located in the first position, it can be positioned inside the washing chamber. At this time, the storage space S becomes the washing chamber. When the dish rack module 70 is raised and located in the second position, it can detach from the washing chamber and be exposed to the outside. When the dish rack module 70 is in the second position, the dish rack 90 can be pulled out of the storage space S or stored back in it. Thus, the dish rack module 70 can move between the first and second positions.

[0149] Reference Figure 9 The aforementioned dish rack module 70 may have a generally hexahedral structure. The dish rack module 70 may include a lower frame 71 forming the bottom surface and an upper part 88 forming the upper surface. A support rod C may be disposed between the lower frame 71 and the upper part 88. A storage space S may be formed between the lower frame 71 and the upper part 88.

[0150] The lower frame 71 can be configured separately from the upper part 88 downwards. The lower frame 71 can have a generally rectangular plate-like structure. (i) The lower frame 71 forms the bottom surface of the washing chamber when the dish rack module 70 is in the first position, (ii) a lower nozzle 75 is disposed on the lower frame 71, and (iii) the bottom surface of the lower frame 71 can be supported by the lifting rod P and the guide rod P' of the drive module 20.

[0151] Reference Figure 16 A recessed frame bottom 71a can be provided on the upper surface of the lower frame 71. When the dish rack module 70 is in the first position, the frame bottom 71a can form the bottom surface of the washing chamber. The frame bottom 71a is stacked on top of the bottom surface of the tub 15, forming the bottom surface of the washing chamber. The frame bottom 71a is approximately circular and can have a structure that slopes towards the center.

[0152] A dish rack drain hole 72 can be formed at the bottom 71a of the frame. The drain hole 72 extends through the bottom 71a of the frame. Washing water can be discharged downwards through the drain hole 72. The discharged washing water can flow into the storage section of the water collection tank 35. Therefore, the upper opening of the water collection tank 35 can be located at the lower part of the drain hole 72. Reference numeral 98 indicates a filter that can filter out foreign matter mixed in the washing water discharged through the drain hole 72. Although not shown in the figures, a pulverizer can be installed inside the water collection tank 35 to finely pulverize the filtered foreign matter.

[0153] Support steps 71b can be formed at the four corners of the lower frame 71. These support steps 71b can be recessed from the lower part of the bowl rack module 70 toward the upper part. The support steps 71b can be considered as the portion that is in close contact with the upper end of the drive column 25, and more precisely, the upper end of the lifting seal 28, when the bowl rack module 70 is in the first position. For reference, Figure 18 The filter 98 is shown separated from the lower frame 71.

[0154] Reference Figure 19 as well as Figure 20 A lower connector 73 can be provided at the bottom 71a of the lower frame 71. The lower connector 73 can transfer washing water from the water collection tank 35 to the lower nozzle 75. The lower connector 73 can extend through the lower frame 71 in the vertical direction. The lower end of the lower connector 73 can be connected to the first connecting pipe 52 of the main connection port 51. More precisely, the upper end of the first connecting pipe 52 can be tightly fitted against the lower end of the lower connector 73.

[0155] At this point, a lower sealing part 74 can be provided on the lower connector 73. The lower sealing part 74 can be disposed between the first connecting tube 52 and the lower connector 73. When the bowl rack module 70 descends to the first position, the lower sealing part 74 is compressed between the upper end of the first connecting tube 52 and the lower end of the lower connector 73, thereby providing a waterproof function.

[0156] A lower nozzle 75 can be connected to the lower connector 73. The center of the lower nozzle 75 is connected to the lower connector 73, thereby receiving washing water from the water collection tank 35. The lower nozzle 75 can rotate around the lower connector 73 as a rotation center, using the water pressure of the received washing water. When rotating, the lower nozzle 75 can spray washing water widely.

[0157] The lower nozzle 75 can spray washing water into the lower part of the washing chamber. In this embodiment, the lower nozzle 75 can spray washing water into the washing chamber together with the side nozzle 55. They can spray washing water onto the tableware from different angles.

[0158] The lower nozzle 75 rises and falls together with the dish rack module 70, but the side nozzle 55 remains fixed to the side of the tub body 15. Therefore, according to this embodiment, washing water is sprayed from multiple angles, and a structure that supplies washing water through multiple washing nozzles N can be achieved relatively simply. In this embodiment, the lower nozzle 75 rises and falls while the side nozzle 55 is fixed; therefore, the lower nozzle 75 can be considered a rising nozzle, and the side nozzle 55 a fixed nozzle. The lower nozzle 75 can also be considered part of the washing module 30.

[0159] The lower nozzle 75 may have multiple lower arms 76 radially arranged from its center. These lower arms 76 can spray washing water while rotating. An arm conduit 76' connected to the lower connector 73 can be formed inside the lower arm 76. The arm conduit 76' extends along the length of the lower arm 76. The arm conduit 76' is connected to multiple lower spray ports 77 that penetrate the lower arm 76, allowing washing water to be sprayed from the lower spray ports 77.

[0160] In this embodiment, the lower nozzle 75 can be disposed at the bottom 71a of the lower frame 71. Therefore, the lower nozzle 75 can move up and down together with the dish rack module 70, which includes the lower frame 71. The lower nozzle 75 sprays washing water towards the lower part of the tableware, and can simultaneously perform a dishwashing function with the side nozzle 55 using the washing water.

[0161] When the dish rack module 70 is lowered and in the first position, the lower nozzle 75 can be stacked directly above the water collection tank 35. This allows for a shorter connection distance between the water collection tank 35 and the lower nozzle 75, enabling the supply of high-temperature washing water to the lower nozzle 75 without heat loss. More precisely, without a long connection structure, the lower connector 73 is directly connected to the first connecting pipe 52, thus creating a shorter water supply path.

[0162] Figure 21 The diagram illustrates the path for supplying washing water to the aforementioned washing nozzle N. As shown, the washing water inside the aforementioned water collection tank 35 can be supplied upwards (arrow ① direction) via the aforementioned circulation pump 40. The washing water supplied upwards is transferred to the aforementioned main connection port 51, and then branches within the aforementioned main connection port 51. More precisely, a portion of the washing water can be supplied to the side nozzle 55 via the aforementioned second connecting pipe 53 (arrow ② direction), and the remaining portion can be supplied to the aforementioned lower nozzle 75 via the aforementioned first connecting pipe 52 (arrow ③ direction).

[0163] At this time, the main sealing part 52' prevents washing water from leaking to the area around it. Simultaneously, the lower sealing part 74 prevents washing water leakage between the first connecting pipe 52 and the lower connector 73. Thus, the washing water supply part 50 achieves a double seal, preventing washing water leakage from the connection between the dish rack module 70 and the washing water supply part 50 even when the dish rack module 70 is raised or lowered.

[0164] In particular, such as Figure 21 As shown, in this embodiment, the main sealing portion 52' has a larger diameter than the lower sealing portion 74. Simultaneously, the main sealing portion 52' has a different height than the lower sealing portion 74. As a result, a sealing area for preventing wash water leakage can be formed over a wider area.

[0165] Figure 16 and Figure 17 The diagram shows a bowl rack module 70 with the upper section 88 omitted. As shown, the lower nozzle 75 is normally covered by the safety net 79. When the safety net 79 is removed, the lower nozzle 75 is fully exposed to the upper part. Figure 18 The state is shown.

[0166] Multiple support rods C can be configured on the aforementioned dish rack module 70. These support rods C can connect the upper part 88 and the lower frame 71. The support rods C can extend in the lifting direction of the aforementioned dish rack module 70. The support rods C can be considered as pillars constituting the aforementioned storage space S. That is, a storage space S for storing the aforementioned dish rack 90 can be formed between the multiple support rods C.

[0167] The aforementioned support rods C can be configured to be positioned further outside the washing chamber than the aforementioned lifting rods P. (Refer to...) Figure 11 The diagram shows the first rod 85, which constitutes the support rod C, positioned further outward than the lifting rod P. As a result, interference can be prevented during the installation of the support rod C and the lifting rod P, and a wider washing chamber can be ensured.

[0168] At the first position of the aforementioned dish rack module 70, the plurality of support rods C can be respectively disposed at the edge of the aforementioned washing chamber. (Refer to...) Figure 7 The diagram shows that the aforementioned multiple support rods C are arranged inside the tub body 15, and are respectively arranged at the corner portions of the tub body 15. Therefore, the aforementioned multiple support rods C do not interfere with the center of the washing chamber or create ineffective space within the washing chamber, thus ensuring a wider washing chamber.

[0169] On the other hand, refer to Figure 12This shows the state where the dish rack module 70 is raised and in the second position. When the dish rack module 70 is raised, the washing chamber inside the tub 15, where the dish rack module 70 was previously located, can become an empty space. Figure 12 The reference numeral R in the attached figure indicates the empty space configured when the aforementioned dish rack module 70 is in the first position, which can also be regarded as a washing room.

[0170] At this time, the lifting rod P and guide rod P' of the aforementioned drive module 20 can support multiple points on the lower part of the aforementioned dish rack module 70. This can distribute the weight of the aforementioned dish rack module 70, allowing it to rise stably without tilting to one side.

[0171] The aforementioned plurality of support rods C may include a first rod 85 and a second rod 86. Both the first rod 85 and the second rod 86 connect the upper part 88 and the lower frame 71, and the second rod 86 also serves to provide an electrical connection between the control unit and the operating unit 89. More precisely, the wiring harness W is housed within the second rod 86, thereby enabling the electrical connection between the control unit and the operating unit 89. The specific structure of the second rod 86 will be described below.

[0172] The aforementioned support rod C can be configured at the corner of the aforementioned dish rack module 70. More precisely, the aforementioned dish rack module 70 may include multiple corners, and the support rod C can be configured at these multiple corners. Here, a corner refers to the portion where two imaginary sides of the aforementioned dish rack module 70 meet. (Refer to...) Figure 18 In this embodiment, the bowl rack module 70 may have a total of four imaginary sides and four corners.

[0173] At this point, regarding the multiple support rods C, the support rods C can be configured in a portion of the aforementioned corners, and the support rods can be omitted in the remaining corners. In this embodiment, the support rods C are respectively configured in three of the four corners of the bowl rack module 70. Furthermore, the support rod can be omitted in the remaining corner.

[0174] In this way, the remaining corner portions of the aforementioned support rods can be omitted from the multiple corner sections to form the bowl rack inlet and outlet. The bowl rack 90 enters and exits through the aforementioned bowl rack inlet and outlet. (Refer to...) Figure 17 The aforementioned dish rack 90 can be pulled out diagonally from the aforementioned dish rack module 70. In other words, the dish rack 90, configured in the aforementioned dish rack module 70, can be positioned at the front of the dishwasher ( Figure 17 (The direction of arrow ①) is used as a reference along the diagonal direction ( Figure 17The dish rack 90 can be stored and pulled out by following the direction of arrow ③. If the dish rack 90 can be stored / pulled out diagonally, it will not be disturbed by the wall even if the dishwasher is placed close to it. Furthermore, the dishwasher can be placed close to the wall, thus increasing the flexibility of dishwasher settings.

[0175] More specifically, when the aforementioned dish rack module 70 moves to the second position, the dish rack inlet / outlet of the aforementioned dish rack 90 can be exposed. The aforementioned dish rack inlet / outlet can be formed at the front of the aforementioned dish rack module 70. Figure 17 (arrow ① direction) and the side of the aforementioned bowl rack module 70 ( Figure 17 The direction of arrow ②). Here, the front and side of the aforementioned dish rack module 70 represent directions that are orthogonal to each other. In this case, the dish rack inlet / outlet can be located in front of the aforementioned dish rack module 70 (…). Figure 17 (arrow ① direction) and the side of the aforementioned bowl rack module 70 ( Figure 17 The arrow ② direction) diagonally between ( Figure 17 (The arrow ③ is open.)

[0176] The aforementioned multiple support rods C can also be arranged at n-1 or fewer of the n corners constituting the dish rack module 70. For example, if the dish rack module 70 has 6 sides and 6 corners, the aforementioned multiple support rods C can be arranged at 5 or fewer corners. Alternatively, the corners where the support rods are omitted in the 6 corners can form dish rack inlets and outlets for pulling out the aforementioned multiple dish racks 90.

[0177] Although some of the aforementioned corner sections omit the support rods C, multiple support rods C are provided in the remaining corner sections, so the multiple support rods C can still support the upper section 88. At this time, the upper section 88 is thin-plate shaped and the load is not large, so the multiple support rods C can provide stable support.

[0178] The weight of the aforementioned bowl rack module 70 is mostly due to the lower frame 71 and the tableware stored in the bowl rack 90. ​​The component supporting this bowl rack module 70 is not the aforementioned support rod C, but rather the aforementioned drive module 20 located at the lower part of the bowl rack module 70. When the bowl rack module 70 is (i) in the first position, the weight of the bowl rack module 70 can be distributed and supported by the support columns 25 and 26 of the drive module 20; (ii) when it is in the second position, the weight of the bowl rack module 70 can be distributed and supported by the lifting rod P and guide rod P' of the drive module 20. These support columns 25 and 26, the lifting rod P, and the guide rod P' are all located at the corners of the bowl rack module 70, thus distributing the weight of the bowl rack module 70 as a whole and stably supporting the bowl rack module 70.

[0179] Reference Figure 18An upper section 88 can be disposed on the upper end of the aforementioned plurality of support rods C. The upper section 88 is the portion exposed at the top when the aforementioned bowl rack module 70 is in the first position. The upper section 88 can have a generally plate-like structure, which is a rectangular plate-like structure in this embodiment. A waterproof gasket 88a can be provided on the bottom surface of the upper section 88 (see reference). Figure 2 The gasket 88a described above can improve the airtightness between the edge of the upper part 88 and the upper end of the barrel body 15.

[0180] An operation unit 89 can be provided on the surface of the upper part 88. The user can input commands to the dishwasher or check the dishwasher's status through the operation unit 89. The operation unit 89 can be a touch-sensitive display or a button-type input device. The user can use the operation unit 89 to turn various functions of the dishwasher on or off, and also to check the dishwasher's operating status.

[0181] At this time, the aforementioned operating unit 89 can be connected to the aforementioned control unit disposed in the machine room 31a. The operating unit 89 and the aforementioned control unit can be connected via a wiring harness W disposed inside the second rod 86, wherein the second rod 86 is the support of the aforementioned bowl rack module 70. Therefore, the operating unit 89 can be disposed in the aforementioned upper part 88 without exposing the aforementioned wiring harness W.

[0182] Reference Figure 22 and Figure 23 The diagram illustrates the structure of the second rod 86, which includes the aforementioned wire harness W. A conduit 87 can be disposed inside the second rod 86. The conduit 87 is a tube, and the wire harness W can be arranged inside it. The conduit 87 can be considered as an inner casing protecting the wire harness W.

[0183] The aforementioned conduit 87 can enter and exit through the aforementioned second rod 86. When the aforementioned bowl rack module 70 moves from the first position to the second position, the aforementioned wiring harness W also needs to extend, during which the aforementioned conduit 87 can protrude from the aforementioned second rod 86. Figure 22 (b) shows this state.

[0184] In this embodiment, the wire harness W can be made of coil cable. Therefore, the overall length of the wire harness W can vary. Reference numeral W' indicates an access terminal located at the end of the wire harness W, which can be connected to the control unit. The control unit can apply signals and power to the operation unit 89 via the wire harness W.

[0185] Reference Figure 23A tube storage space 86a can be formed inside the second rod 86 to house the conduit 87. A wire storage space 87a, serving as an empty space, can also be formed inside the conduit 87. A wire harness W in the form of a wound cable can be housed inside the wire storage space 87a. Alternatively, the conduit 87 can be omitted. As yet another example, the wire harness W can be a cable that has been folded or unfolded multiple times inside the second rod 86, rather than a wound cable. Reference numeral 86b shows a cover that conceals the remaining space of the second rod 86.

[0186] Figure 16 and Figure 17 A plurality of dish racks 90 housed in a dish rack module 70 are shown. In this embodiment, the dish rack 90 includes a lower dish rack 91 and an upper dish rack 95. Alternatively, the dish rack module 70 may house only one dish rack or more than three dish racks 90. For reference, Figure 2 The illustration shows a configuration where a total of three dish racks 90 are stored in the aforementioned storage space S. Reference numeral 99 indicates the top dish rack positioned at the very top.

[0187] The lower bowl rack 91 may include a first bowl rack frame 92 and a second bowl rack frame 93. The first bowl rack frame 92 and the second bowl rack frame 93 may be respectively disposed at the lower part and the upper part of the lower bowl rack 91. The first bowl rack frame 92 and the second bowl rack frame 93 may be connected by a first mesh M1.

[0188] A bowl rack fixing part 94 can be provided at the edge of the lower bowl rack 91. Through the bowl rack fixing part 94, the edge of the lower bowl rack 91 is supported by the surfaces of the plurality of support rods C. In this embodiment, the bowl rack fixing part 94 is a clip-shaped part that wraps around the surface of the support rod C. As another example, the bowl rack fixing part 94 can also be a protrusion structure inserted into a fixing hole (not shown) formed in the support rod C. As yet another example, it can have the following structure: a mounting platform (not shown) protrudes from the surface of the support rod C, and the bowl rack fixing part 94 is stacked on the upper part of the mounting platform.

[0189] Three bowl rack fixing parts 94 can be provided on the lower bowl rack 91. The three bowl rack fixing parts 94 can be respectively provided at the corners of the second bowl rack frame 93 of the lower bowl rack 91. Thus, the lower bowl rack 91 can be fixed to the support rod C at a total of three points.

[0190] The upper dish rack 95 can be disposed on top of the lower dish rack 91. The upper dish rack 95 can have a mesh-like structure via the second mesh M2. The upper dish rack 95 can be pressed and fixed between the plurality of support rods C. As another example, the upper dish rack 95 can be stacked on top of the lower dish rack 91. As yet another example, similar to the lower dish rack 91, a dish rack fixing part 94 can also be provided on the upper dish rack 95.

[0191] Reference Figure 7 and Figure 8 The working process of the dishwasher according to this embodiment is explained. First, when the dish rack module 70 is in the first position, the dishwashing process can be performed in the washing chamber inside the dishwasher. The washing process can be performed in the following order, for example, pre-wash, main wash, rinse, heated rinse, and drying.

[0192] The pre-wash described above is a process of removing protein-based dirt using room-temperature wash water without heating it, and can be performed following the process of water supply, washing, and drainage. The main wash, on the other hand, uses detergent to remove foreign objects adhering to tableware, etc., and can also be performed following the process of water supply, washing, and drainage. In this case, the wash water can be heated using an electric heater or condenser during the main wash to remove foreign objects.

[0193] The above-mentioned rinsing is a step of rinsing the dishes after the main washing process with water, and can be carried out in the process of water supply, washing, and drainage. Heated rinsing is a process of rinsing with water heated by an electric heater or condenser, and can be combined with the process of water supply, washing, and drainage, with the addition of heated water during the rinsing process.

[0194] Finally, drying is the process of removing moisture from the washed and rinsed tableware. In this embodiment, the drying of tableware may include hot air drying achieved by the drying fan 60 and condensation drying achieved by the water jacket 68.

[0195] After the dishwashing is completed, the control unit can raise the dish rack module 70 to a predetermined height. Through the operation of the drive module 20, the lifting rod P pushes the dish rack module 70 upwards, causing the upper part 88 to move upwards, forming a predetermined opening between the upper part 88 and the plurality of support rods C. This opening allows hot, humid air from inside the washing chamber to be discharged to the outside.

[0196] Additionally, when the user wants to remove the washed dishes, they can operate the aforementioned operating unit 89 to fully raise the dish rack module 70 to the second position. Through the operation of the lifting motor 24 of the drive module 20, the lifting rod P can push the bottom surface of the dish rack module 70 upwards, more accurately, pushing the support step 71b of the lower frame 71 upwards. The guide rod P' also rises together with the lifting rod P, ensuring that the dish rack module 70 rises in the correct direction and does not tilt to one side. Figure 7 Arrow ① indicates the upward direction of the dish rack module 70, and arrow ② indicates the pulling-out direction of the dish rack.

[0197] Reference Figure 8 The figure shows the bowl rack module 70 in its fully raised state. As shown, the upper part 88, lower frame 71, and support rod C constituting the bowl rack module 70 can rise. At the same time, the bowl rack 90 also rises, and the lower nozzle 75 can also rise. Figure 8 The example shown is that filter 98 also rises, but as another example, filter 98 may remain on the upper part of the collection tank 35.

[0198] Thus, the aforementioned upper part 88, lower frame 71, multiple support rods C, and lower nozzle 75 can be raised and lowered, and therefore can be regarded as a lifting unit. In this case, the lower nozzle 75 can become a lifting nozzle.

[0199] On the other hand, the aforementioned water collection tank 35, the aforementioned side nozzles 55, the aforementioned drying fan 60, and the aforementioned water jacket 68 remain fixed below together with the aforementioned barrel body 15. Undoubtedly, the circulating pump 40 and other structures disposed in the aforementioned machine room 31a are also fixed. Therefore, the aforementioned water collection tank 35, the aforementioned side nozzles 55, the aforementioned drying fan 60, and the aforementioned water jacket 68 can be considered as fixed units. In this case, the aforementioned side nozzles 55 can be considered fixed nozzles.

[0200] Figure 24 Other embodiments (second embodiments) according to the present invention are shown. Hereinafter, only the parts that differ from the embodiments described above will be described. The drive module 20 for raising and lowering the dish rack module 70 and the washing module 30 for washing can be configured as a single structure, rather than separate structures. For example... Figure 24 As shown, the washing module 30 can be configured together with the lifting motor 24 and the like in the drive space 21a that constitutes the drive module 20. In this case, the washing module 30 can be configured in the lower part of the tub body 15.

[0201] Figure 25Another embodiment (third embodiment) according to the present invention is shown. Hereinafter, only the parts that differ from the above embodiment will be described. In this embodiment, the bowl rack module 70 can be raised and lowered via the lifting module 30. The lifting module 30 may include a pair of rotating links 125 in an 'X' shape and a drive motor 123 that moves one end of the rotating links 125 in a straight direction (arrow ① direction).

[0202] When one end of the pair of rotating links 125 moves linearly towards each other via the drive motor 123, the other ends of the pair of rotating links 125 also move towards each other and rise. Thus, the bowl rack module 70, supported by the other ends of the pair of rotating links 125, can also rise together. (Arrow ② direction)

[0203] Figure 26 Another embodiment (fourth embodiment) according to the present invention is shown. Hereinafter, only the parts that differ from the above embodiment will be described. Two support rods 185 can be respectively arranged at two of the four corners of the bowl rack module 170, and the support rods are omitted at the remaining two corners. As a result, the bowl rack 90 arranged in the bowl rack module 170 can be pulled out in two different directions (arrows ① and ②).

[0204] Figure 27 Other embodiments (fifth embodiments) according to the present invention are shown. Hereinafter, only the parts that differ from the embodiments described above will be described. The dish rack module 270 may have a generally cylindrical structure. Furthermore, a plurality of support rods 285 may be arranged along the circumferential direction of the dish rack module 270. In this case, the support rods 285 may be omitted within a range corresponding to a predetermined angle along the circumferential direction of the dish rack module 270. Additionally, the predetermined angle range within which the support rods 285 are omitted can serve as the dish rack inlet / outlet for pulling out the dish rack 90. Figure 27 The arrow indicates the direction in which the dish rack is pulled out at 90 degrees.

[0205] The above description is merely illustrative of the technical concept of the present invention. Those skilled in the art can make various modifications and variations without departing from the essential characteristics of the present invention. Therefore, the multiple embodiments disclosed in this invention are for illustrating the embodiments of the present invention and are not intended to limit the technical concept of the present invention. The scope of the technical concept of the present invention is not limited to these embodiments. The scope of protection of the present invention should be interpreted based on the claims, and all technical concepts within the same scope are included within the scope of protection of the present invention.

Claims

1. A dishwasher comprising: The tub body has a washing chamber inside; The drive module is located at the lower part of the aforementioned barrel and has a lifting device inside; The washing module has a separate mechanical chamber from the washing chamber, which is used to spray washing water into the interior of the washing chamber. as well as The dish rack module internally houses the dish rack and is raised and lowered via the aforementioned lifting device. The lower part of the aforementioned bowl rack module is supported by the aforementioned lifting device. The aforementioned dish rack module moves up and down between a first position disposed within the aforementioned washing chamber and a second position exposed to the outside after being removed from the aforementioned washing chamber.

2. The dishwasher according to claim 1, wherein, When the aforementioned dish rack module moves to the second position, the dish rack inlet and outlet are exposed, and the dish rack inlet and outlet are diagonally open between the front and the side of the aforementioned dish rack module.

3. The dishwasher according to claim 1, wherein, The aforementioned dish rack module includes multiple corner sections, with support rods erected at a portion of these corner sections, and open dish rack entrances and exits formed at the remaining portions of these corner sections where the support rods are omitted.

4. The dishwasher according to claim 1, wherein, The aforementioned dish rack module includes: The upper part, when the aforementioned dish rack module is in the first position, shields the aforementioned washing chamber; A lower frame, separate from the upper frame and positioned at the bottom of the dish rack module, forms a storage space between the lower frame and the upper frame; and Multiple support rods, which connect the upper part and the lower frame, extend along the lifting direction of the bowl rack module. Among them, a storage space for accommodating the aforementioned bowl rack is formed between the multiple support rods.

5. The dishwasher according to claim 4, wherein, At the first position of the aforementioned dish rack module, the aforementioned plurality of support rods are respectively disposed at the edge of the aforementioned washing chamber.

6. The dishwasher according to claim 4, wherein, The aforementioned multiple support rods are respectively arranged in n-1 or fewer of the n corners constituting the aforementioned bowl rack module. The corners in the n corners that omit the aforementioned support rods form the bowl rack inlet and outlet for pulling out the aforementioned bowl rack.

7. The dishwasher according to claim 4, wherein, At the first position of the aforementioned dish rack module, the aforementioned lower frame forms the bottom surface of the aforementioned washing chamber, and a dish rack drain hole is formed in the aforementioned lower frame that opens toward the water collection tank disposed in the aforementioned machine chamber, and a filter is disposed in the aforementioned dish rack drain hole.

8. The dishwasher according to claim 4, wherein, When the dish rack module is in the first position, the lower frame is stacked on top of the bottom of the tub, and the lower frame forms the bottom surface of the washing chamber.

9. The dishwasher according to claim 4, wherein, A lower nozzle is disposed on the upper part of the lower frame to spray washing water into the lower part of the washing chamber. The lower nozzle moves up and down together with the dish rack module.

10. The dishwasher according to claim 1, wherein, The aforementioned driver module includes: Lifting motor; and Multiple lifting rods, which move up and down in conjunction with the rotation of the aforementioned lifting motor, and one end of each rod is connected to the lower part of the aforementioned bowl rack module.

11. The dishwasher according to claim 10, wherein, The drive module has multiple support columns extending along the lifting direction of the bowl rack module. The upper ends of the multiple support columns support the lower part of the bucket body, and the multiple lifting rods move in and out between the inside and outside of the multiple support columns.

12. The dishwasher according to claim 10, wherein, A lower frame that forms the bottom of the washing chamber is disposed at the lower part of the aforementioned dish rack module, and the aforementioned plurality of lifting rods support different points of the aforementioned lower frame.

13. The dishwasher according to claim 10, wherein, The multiple support rods located on the edge of the aforementioned dish rack module are positioned further outward than the aforementioned lifting rods within the aforementioned washing chamber.

14. The dishwasher according to claim 11, wherein, A lifting sealing part is provided between the upper end of the support column and the bottom surface of the bowl rack module. When the bowl rack module is in the first position, the lifting sealing part is compressed between the upper end of the support column and the bottom surface of the bowl rack module.

15. The dishwasher according to claim 11, wherein, A support step is provided at the lower part of the aforementioned bowl rack module, which is recessed towards the upper part of the aforementioned bowl rack module. When the aforementioned bowl rack module is in the first position, the upper end of the aforementioned support column is disposed on the aforementioned support step.

16. The dishwasher according to claim 1, wherein, The aforementioned washing module is equipped with washing nozzles for spraying washing water. The above-mentioned washing nozzles include: Side nozzles, disposed on the side of the aforementioned tub body, spray washing water onto the side of the aforementioned washing chamber; and The lower nozzle is located at the bottom of the dish rack module and moves up and down together with the dish rack module to spray washing water into the lower part of the washing chamber.

17. The dishwasher according to claim 16, wherein, A water collection tank for storing washing water is provided in the aforementioned machine room. When the aforementioned dish rack module is in the first position, the aforementioned side nozzle and the aforementioned lower nozzle are connected to the aforementioned water collection tank and receive washing water.

18. The dishwasher according to claim 1, wherein, A washing water supply unit connected to the aforementioned water collection tank is installed in the aforementioned machine room. The aforementioned washing water supply department includes: The main connection port opens towards the aforementioned water collection tank; A first connecting pipe, which connects to the aforementioned main connecting port, extends in the vertical direction; and The second connecting pipe, which connects to the main connecting port, extends vertically and has a flow path independent of the first connecting pipe. The side nozzle is equipped with a side guide that connects to the second connecting pipe. The lower nozzle has a lower connector that opens downwards. When the bowl rack module is in the first position, the first connecting tube is connected to the lower connector.

19. The dishwasher according to claim 1, wherein, The following features are provided on the side of the aforementioned barrel: Side nozzles are used to spray washing water into the interior of the aforementioned washing chamber; A drying fan is used to spray hot air into the interior of the aforementioned washing chamber; as well as The water jacket stores washing water internally and condenses and dries the interior of the washing chamber. The aforementioned side nozzles, drying fan, and water jacket are respectively disposed on different sides of the aforementioned barrel.

20. A dishwasher comprising: The tub body has a washing chamber inside; A lifting device is located at the lower part of the aforementioned barrel body; Washing nozzles, which are used to spray washing water into the aforementioned washing chamber; as well as The dish rack module is raised and lowered by the aforementioned lifting device, and moves between a first position disposed within the washing chamber and a second position disposed outside the washing chamber. The aforementioned lifting device includes: Lifting motor; and The lifting rod, driven by the aforementioned lifting motor, supports the lower part of the aforementioned dish rack module and causes the dish rack module to rise and fall.

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