Drying module, drying water tank and integrated cabinet

Abstract

According to the drying module, the drying water tank and the integrated cabinet, when a draught fan and a heating piece in an air inlet channel work, air in the inner space of the cabinet can be sucked through an air inlet of the air inlet channel to be heated and conveyed to a drying air channel outside the tank to heat and dry the water tank, and the water tank is heated and dried while the warm and dry environment of the water tank is guaranteed; through the hot air return channel, hot air passing through the out-of-groove drying air channel is exhausted to the inner space of the cabinet from the air outlet channel, so that air internal circulation of the inner space of the cabinet is achieved, the inner space of the cabinet is dried, the warm and dry environment of the inner space of the cabinet is kept, user experience is improved, and the user experience is improved. Moreover, air in the internal space of the cupboard is heated and dried and then is conveyed to the drying air duct outside the tank through the air inlet channel to dry the water tank, so that the drying temperature is increased, and the time required for heating and drying the water tank is shortened.

Description

Technical Field

[0001] The present application relates to the technical field of household appliances, and in particular, to a drying module, a drying sink, and an integrated cabinet. Background Art

[0002] With the progress of society, the comprehensive strength of our country is constantly increasing, and people's material living standards have been improved and enhanced. With the continuous innovation and development of science and technology, in recent years, household kitchens have tended to develop towards scientific and intelligent. More and more household kitchen utensils have improved people's living quality. A healthy kitchen environment has also attracted the attention of more and more modern families. However, traditional sinks are prone to bacteria growth and mildew in a long-term cold and humid environment, which affects people's health. Utility Model Content

[0003] The purpose of the present application is to provide a drying module, a drying sink, and an integrated cabinet, which can ensure a warm and dry environment for the sink, and at the same time, can realize the air internal circulation in the internal space of the cabinet to dry the internal space of the cabinet, maintain a warm and dry environment in the internal space of the cabinet, increase the drying temperature of the sink, and shorten the time required for heating and drying the sink.

[0004] The embodiments of the present application can be implemented as follows:

[0005] In a first aspect, the present utility model provides a drying module, including a drying housing, a fan, and a heating element;

[0006] The drying housing has an air inlet channel, a hot return air channel, and an air outlet channel. The air inlet of the air inlet channel and the air outlet of the air outlet channel are both used to communicate with the internal space of the cabinet. The air outlet of the air inlet channel and the air return inlet of the hot return air channel are used to communicate through an external-sink drying air duct. The air return outlet of the hot return air channel is connected to the air inlet of the air outlet channel;

[0007] Both the fan and the heating element are arranged in the air inlet channel.

[0008] In an optional embodiment, the drying housing further has an in-sink drying air duct. The air return outlet of the hot return air channel is also connected to the in-sink drying inlet of the in-sink drying air duct. The in-sink drying outlet of the in-sink drying air duct is used to align with the inside of the sink.

[0009] In an optional embodiment, the drying module further includes a reversing member, which is rotatably arranged at the intersection of the hot return air channel, the in-sink drying air duct, and the air outlet channel. The reversing member is used to connect the air outlet channel and / or the in-sink drying air duct with the hot return air channel.

[0010] In an alternative embodiment, the commutation member includes a rotating shaft and a valve plate mounted on the rotating shaft. The rotating shaft is rotatably disposed at the intersection of the hot return air duct, the in-tank drying air duct, and the air outlet duct, and is used to drive the valve plate to rotate so as to block the air outlet duct or the in-tank drying air duct.

[0011] In an alternative embodiment, the drying module further includes a commutation driving source. The commutation driving source is installed outside the drying housing and is connected to the commutation member for driving the commutation member to rotate.

[0012] In an alternative embodiment, the air inlet duct and the in-tank drying air duct are arranged horizontally and side by side. The hot return air duct and the air outlet duct are both located below the air inlet duct and the in-tank drying air duct. The air inlet of the air inlet duct is located at the side of the drying housing, the in-tank drying outlet of the in-tank drying air duct is located at the upper part of the drying housing, and the air outlet of the air outlet duct is located at the bottom of the drying housing.

[0013] In an alternative embodiment, the air inlet of the air inlet duct, the return air inlet of the hot return air duct, and the in-tank drying outlet of the in-tank drying air duct are all located on the same side of the drying housing.

[0014] In an alternative embodiment, the drying housing includes a drying box and a first lid mounted on the drying box. The drying box and the first lid enclose the air inlet duct, and the air inlet of the air inlet duct is provided on the first lid.

[0015] and / or,

[0016] The air inlet of the air inlet duct is located at the side of the drying housing. The fan includes a centrifugal fan, and the air inlet of the air inlet duct faces the negative pressure side of the centrifugal fan.

[0017] and / or,

[0018] The heating element includes a heating rack.

[0019] In a second aspect, the present utility model provides a drying sink, which includes a sink, an out-of-tank drying assembly, and the drying module according to any one of the foregoing embodiments.

[0020] Both the out-of-tank drying assembly and the drying housing are arranged outside the sink. The out-of-tank drying assembly has an out-of-tank drying air duct, and the air inlet of the air inlet duct and the return air inlet of the hot return air duct are communicated through the out-of-tank drying air duct.

[0021] In a third aspect, the present utility model provides an integrated cabinet, which includes a cabinet and the drying sink according to the foregoing embodiment.

[0022] The cabinet has an internal space and a sink installation opening communicating with the internal space. The drying sink is installed at the sink installation opening. The air inlet of the air inlet passage and the air outlet of the air outlet passage are both communicated with the internal space of the cabinet.

[0023] Compared with the prior art, the beneficial effects of the embodiments of the present application include, for example:

[0024] When the blower and the heating element in the air inlet passage work, air in the internal space of the cabinet can be drawn in through the air inlet of the air inlet passage, heated and then conveyed to the drying air duct outside the sink to heat and dry the sink. While ensuring a warm and dry environment for the sink, the hot air passing through the drying air duct outside the sink is discharged from the air outlet passage to the internal space of the cabinet through the hot air return passage, thereby realizing the internal air circulation of the internal space of the cabinet to dry the internal space of the cabinet and maintain a warm and dry environment in the internal space of the cabinet, improving the user experience. Moreover, since the air in the internal space of the cabinet is heated and dried and then conveyed to the drying air duct outside the sink through the air inlet passage to dry the sink, the drying temperature is increased and the time required for heating and drying the sink is shortened. Description of the Drawings

[0025] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings required to be used in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0026] Figure 1 Schematic diagram of the drying sink according to the embodiment of the present application;

[0027] Figure 2 One of the three-dimensional views of the drying module according to the embodiment of the present application;

[0028] Figure 3 Another three-dimensional view of the drying module according to the embodiment of the present application;

[0029] Figure 4 Partial cross-sectional view of the combined structure of the drying module and the drying component outside the sink according to the embodiment of the present application;

[0030] Figure 5 One of the schematic diagrams of the drying module according to the embodiment of the present application;

[0031] Figure 6 For Figure 5 A-A cross-sectional view of;

[0032] Figure 7 Another schematic diagram of the drying module according to the embodiment of the present application;

[0033] Figure 8 For Figure 5 Schematic diagram after hiding the first box cover;

[0034] Figure 9 Exploded view of the drying module of the embodiment of the present application after hiding the commutation member and the commutation driving source.

[0035] Icon: 10 - drying module; 11 - drying outer shell; 110 - air inlet channel; 1101 - air inlet; 1102 - air inlet outlet; 111 - hot air return channel; 1111 - return air inlet; 1112 - return air outlet; 112 - air outlet channel; 1121 - air outlet inlet; 1122 - air outlet; 113 - drying air duct in the tank; 1131 - drying inlet in the tank; 1132 - drying outlet in the tank; 114 - drying box; 115 - first box cover; 116 - second box cover; 12 - fan; 13 - heating element; 14 - commutation member; 141 - rotating shaft; 142 - valve plate; 15 - commutation driving source; 20 - water tank; 30 - out - of - tank drying assembly; 31 - out - of - tank drying air duct; 311 - out - of - tank drying inlet; 312 - out - of - tank drying outlet; 40 - tableware carrier; 41 - tableware. Detailed implementation manners

[0036] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Apparently, the described embodiments are some, but not all, of the embodiments of the present application. Usually, the components of the embodiments of the present application described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0037] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application claimed, but merely represents selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts fall within the scope of protection of the present application.

[0038] It should be noted that: Similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0039] In the description of the present application, it should be noted that the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of this application is usually placed when in use. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present application. In addition, terms such as "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0040] In addition, terms such as "horizontal", "vertical", "overhanging", etc. do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0041] In the description of the present application, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0042] The following will Figures 1 to 9 describe some embodiments of the present application in detail. Without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0043] An embodiment of the present application discloses an integrated cabinet, which includes a cabinet and a drying sink 20; the cabinet has an internal space and a sink 20 installation opening communicating with the internal space, and the drying sink 20 is installed in the sink 20 installation opening.

[0044] Combined with Figure 1 , the drying sink 20 includes a sink 20, an external drying component 30 and a drying module 10, and both the external drying component 30 and the drying module 10 are arranged outside the sink 20.

[0045] The external drying component 30 has an external drying air duct 31, and the drying module 10 can provide hot air for the external drying air duct 31, so that the hot air fills the entire external drying air duct 31, and the sink 20 is heated by the principle of heat exchange, so as to achieve the drying effect of the sink 20, make the sink 20 in a dry and warm environment, not easy to breed bacteria, and ensure people's health.

[0046] However, although the hot air in the external drying air duct 31 is used to dry the water tank 20, the water tank 20 is sunk into the internal space of the cabinet. The cold, damp environment in the internal space of the cabinet not only affects the user experience, but also affects the heating time of the water tank 20.

[0047] To improve this defect, the inventor improved the drying module 10. Combining Figures 2 to 4 , the improved drying module 10 includes a drying housing 11, a blower 12 and a heating element 13; the drying housing 11 has an air inlet channel 110, a hot air return channel 111 and an air outlet channel 112. The air inlet 1101 of the air inlet channel 110 and the air outlet 1122 of the air outlet channel 112 are both used to communicate with the internal space of the cabinet. The air outlet 1102 of the air inlet channel 110 and the air return inlet 1111 of the hot air return channel 111 are used to communicate through the external drying air duct 31 of the water tank 20. That is, the air inlet 1101 of the air inlet channel 110 and the air outlet 1122 of the air outlet channel 112 are both communicated with the internal space of the cabinet. The air outlet 1102 of the air inlet channel 110 is communicated with the external drying inlet 311 of the external drying air duct 31. The external drying outlet 312 of the external drying air duct 31 is communicated with the air return inlet 1111 of the hot air return channel 111. In this way, the air outlet 1102 of the air inlet channel 110 and the air return inlet 1111 of the hot air return channel 111 are communicated through the external drying air duct 31. And the air return outlet 1112 of the hot air return channel 111 is communicated with the air inlet 1121 of the air outlet channel 112; the blower 12 and the heating element 13 are both arranged in the air inlet channel 110.

[0048] As mentioned above, when the blower 12 and the heating element 13 in the air inlet channel 110 work, they can draw in the air in the internal space of the cabinet through the air inlet 1101 of the air inlet channel 110, heat it and transport it to the external drying air duct 31 to heat and dry the water tank 20. While ensuring a warm and dry environment for the water tank 20, the hot air passing through the external drying air duct 31 is discharged from the air outlet channel 112 to the internal space of the cabinet through the hot air return channel 111, so as to realize the internal air circulation of the internal space of the cabinet, dry the internal space of the cabinet, maintain a warm and dry environment in the internal space of the cabinet, improve the user experience, and because the air in the internal space of the cabinet is heated and dried and then transported to the external drying air duct 31 through the air inlet channel 110 to dry the water tank 20, the drying temperature is increased and the time required to heat and dry the water tank 20 is shortened.

[0049] In addition, combining Figures 5 to 7, the drying housing 11 further has an in-tank drying air duct. The air return outlet 1112 of the hot air return channel 111 is also communicated with the in-tank drying inlet 1131 of the in-tank drying air duct. The in-tank drying outlet 1132 of the in-tank drying air duct is used to be aligned with the inside of the water tank 20. In this way, the hot air in the hot air return channel 111 can be conveyed to the inside of the water tank 20 through the in-tank drying air duct, which can further accelerate the drying speed of the water tank 20 and can also effectively realize functions such as drying and thawing of tableware 41.

[0050] Of course, in order to facilitate the placement of tableware 41, the drying water tank 20 further includes a tableware carrier 40 placed in the water tank 20, so that the hot air blown out from the in-tank drying air duct can better contact the tableware 41 and ensure the drying effect of the tableware 41.

[0051] Optionally, the drying module 10 further includes a reversing member 14. The reversing member 14 is rotatably arranged at the intersection of the hot air return channel 111, the in-tank drying air duct and the air outlet channel 112. The reversing member 14 is used to communicate the air outlet channel 112 and / or the in-tank drying air duct with the hot air return channel 111. In this way, flexible switching of three air outlet modes can be realized by the rotation of the reversing member 14. One is that the hot air return channel 111 is communicated with the air outlet channel 112 and not with the in-tank drying air duct. At this time, the hot air discharged through the out-of-tank drying air duct 31 only enters the internal space of the cabinet from the air outlet 1122 of the air outlet channel 112 and will not lead to the in-tank drying outlet 1132 of the in-tank drying air duct, so as to realize the internal air circulation of the cabinet internal space. The second is that the hot air return channel 111 is communicated with the in-tank drying air duct and not with the air outlet channel 112. At this time, the hot air discharged through the out-of-tank drying air duct 31 only is conveyed to the inside of the water tank 20 from the in-tank drying outlet 1132 of the in-tank drying air duct and will not lead to the air outlet 1122 of the air outlet channel 112, so as to realize functions such as drying and thawing of the inside of the water tank 20 or drying of tableware 41. The third is that the hot air return channel 111 is communicated with both the air outlet channel 112 and the in-tank drying air duct. At this time, the hot air discharged through the out-of-tank drying air duct 31 can both be conveyed to the inside of the water tank 20 from the air outlet 1122 of the in-tank drying and can also be conveyed to the internal space of the cabinet from the air outlet 1122 of the air outlet channel 112.

[0052] Specifically, the commutation member 14 includes a rotating shaft 141 and a valve plate 142 mounted on the rotating shaft 141. The rotating shaft 141 is rotatably arranged at the intersection of the hot return air duct 111, the in-tank drying air duct, and the air outlet duct 112, and is used to drive the valve plate 142 to rotate so as to block the air outlet duct 112 or the in-tank drying air duct. That is, when the valve plate 142 rotates to the position where it blocks the air outlet duct 112, the in-tank drying air duct is communicated with the hot return air duct 111, and the air outlet duct 112 is not communicated with the hot return air duct 111; when the valve plate 142 rotates to the position where it blocks the in-tank drying air duct, the air outlet duct 112 is communicated with the hot return air duct 111, and the in-tank drying air duct is not communicated with the hot return air duct 111; and when the valve plate 142 rotates to a position where there are gaps with both the air outlet duct 112 and the in-tank drying air duct, the hot return air duct 111 is communicated with both the air outlet duct 112 and the in-tank drying air duct. In this way, the function switching of communicating the air outlet duct 112 and / or the in-tank drying air duct with the hot return air duct 111 can be realized.

[0053] Of course, in order to facilitate the user to directly operate the button on the man-machine interaction device to rotate the commutation member 14, the drying module 10 further includes a commutation drive source 15. The commutation drive source 15 includes, but is not limited to, a power element such as a motor that can provide torque. The commutation drive source 15 is installed outside the drying housing 11, and the commutation drive source 15 is connected to the rotating shaft 141 of the commutation member 14 for driving the commutation member 14 to rotate.

[0054] It can be understood that, in order to reduce costs, it can also be realized by a mechanical manual operation method to rotate the commutation member 14. For example, the rotating shaft 141 of the commutation member 14 meshes with a rotating lever through bevel gears, and the rotating lever extends upward to the kitchen countertop, so that the user can manually turn the rotating lever to rotate the commutation member 14, thereby realizing the switching of the drying function.

[0055] Combined Figure 8 and Figure 9 , the air inlet duct 110 and the in-tank drying air duct are arranged horizontally side by side, and both the hot return air duct 111 and the air outlet duct 112 are located below the air inlet duct 110 and the in-tank drying air duct. The air inlet 1101 of the air inlet duct 110 is located on the side of the drying housing 11, the in-tank drying outlet 1132 of the in-tank drying air duct is located on the upper part of the drying housing 11, and the air outlet 1122 of the air outlet duct 112 is located at the bottom of the drying housing 11, thereby improving the structural compactness of the drying module 10 and making the vertical dimension of the drying module 10 smaller.

[0056] The air inlet 1102 of the air inlet channel 110, the air return inlet 1111 of the hot air return channel 111, and the in-tank drying air outlet 1132 of the in-tank drying air duct are all located on the same side of the drying housing 11, which can be understood as the side of the drying housing 11 facing the water tank 20, so that the integration of the entire drying water tank 20 can be higher.

[0057] The air inlet 1101 of the air inlet channel 110 is located on the side of the drying housing 11, specifically, it can be located on the side of the drying housing 11 facing away from the water tank 20, as long as it is not located in the area covered by the side wall of the water tank 20 of the drying housing, and normal air intake can be achieved. The fan 12 includes a centrifugal fan 12, and the air inlet 1101 of the air inlet channel 110 is directly opposite to the negative pressure side of the centrifugal fan 12, so that the drying housing 11 can be made more flattened with a smaller thickness, improving the structural compactness.

[0058] The heating element 13 includes a heating rack, also known as a heating rack or a heating rack, which is a device that converts electrical energy or other energy into heat energy to provide heat energy, and is used to heat air, liquid or objects. Of course, the heating element 13 can also be a PTC heater.

[0059] The drying housing 11 includes a drying box 114, a first lid 115 and a second lid 116 installed on the drying box 114. The first lid 115 and the second lid 116 are arranged in parallel. The first lid 115 and the drying box 114 enclose the air inlet channel 110, and the second lid 116 and the drying box 114 enclose the in-tank drying air duct 113. The air inlet 1101 of the air inlet channel 110 is arranged on the lid, which is convenient for disassembling and repairing the fan 12, the reversing member 14 and the heating rack.

[0060] In summary, the embodiment of the present application discloses a drying module 10, a drying water tank 20 and an integrated cabinet. When the fan 12 and the heating element 13 in the air inlet channel 110 work, the air in the internal space of the cabinet can be sucked through the air inlet 1101 of the air inlet channel 110, heated and then transported to the out-of-tank drying air duct 31 to heat and dry the water tank 20. While ensuring a warm and dry environment for the water tank 20, the hot air passing through the out-of-tank drying air duct 31 is discharged from the air outlet channel 112 to the internal space of the cabinet through the hot air return channel 111, thereby realizing the air internal circulation in the internal space of the cabinet to dry the internal space of the cabinet and maintain a warm and dry environment in the internal space of the cabinet, improving the user experience. Moreover, since the air in the internal space of the cabinet is heated and dried and then transported to the out-of-tank drying air duct 31 through the air inlet channel 110 to dry the water tank 20, the drying temperature is increased and the time required to heat and dry the water tank 20 is shortened.

[0061] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A drying module, characterized in that: Including drying shell, fan and heating element; The drying shell has an air inlet channel, a hot return air channel and an air outlet channel, the air inlet of the air inlet channel and the air outlet of the air outlet channel are both used to communicate with the internal space of the cabinet, the air inlet outlet of the air inlet channel and the return air inlet of the hot return air channel are used to communicate through the drying air duct outside the slot, and the return air outlet of the hot return air channel is communicated with the air outlet inlet of the air outlet channel; The fan and the heating element are both arranged in the air inlet passage.

2. The drying module according to claim 1, characterized in that: The drying shell also has an in-tank drying air duct, and the return air outlet of the hot return air channel is also connected to the in-tank drying inlet of the in-tank drying air duct, and the in-tank drying outlet of the in-tank drying air duct is used to align with the inside of the water tank.

3. The drying module according to claim 2, characterized in that: The drying module also includes a reversing member, which is rotatably arranged at the intersection of the hot return air channel, the drying air channel in the slot and the air outlet channel, and the reversing member is used to connect the air outlet channel and / or the drying air channel in the slot with the hot return air channel.

4. The drying module according to claim 3, characterized in that: The reversing member includes a rotating shaft and a valve plate installed on the rotating shaft. The rotating shaft can be rotatably arranged at the intersection of the hot return air channel, the drying air channel in the tank and the air outlet channel, and is used to drive the valve plate to rotate to block the air outlet channel or the drying air channel in the tank.

5. The drying module according to claim 3, characterized in that: The drying module further includes a reversing driving source, which is installed outside the drying shell and connected to the reversing member to drive the reversing member to rotate.

6. The drying module according to claim 2, characterized in that: The air inlet channel and the in-trough drying air duct are arranged horizontally in parallel, the hot return air channel and the air outlet channel are both located below the air inlet channel and the in-trough drying air duct, the air inlet of the air inlet channel is located on the side of the drying shell, the in-trough drying outlet of the in-trough drying air duct is located on the upper part of the drying shell, and the air outlet of the air outlet channel is located at the bottom of the drying shell.

7. The drying module according to claim 6, characterized in that: The air inlet outlet of the air inlet channel, the return air inlet of the hot return air channel and the in-trough drying outlet of the in-trough drying air channel are all located on the same side of the drying shell.

8. The drying module according to claim 1, characterized in that: The drying shell comprises a drying box and a first box cover installed on the drying box, the drying box and the first box cover enclose the air inlet channel, and the air inlet of the air inlet channel is arranged on the first box cover; and / or, The air inlet of the air inlet channel is located at the side of the drying shell, the fan includes a centrifugal fan, and the air inlet of the air inlet channel is directly opposite to the negative pressure side of the centrifugal fan; and / or, The heating element comprises a heating frame.

9. A drying water tank, characterized in that: It comprises a water tank, an outer drying component of the tank and a drying module according to any one of claims 1 to 8; The out-of-tank drying component and the drying shell are both arranged outside the water tank. The out-of-tank drying component has an out-of-tank drying air duct, and the air inlet outlet of the air inlet duct and the return air inlet of the hot return air duct are connected through the out-of-tank drying air duct.

10. An integrated cabinet, characterized in that: comprising a cabinet and the drying sink as claimed in claim 9; The cabinet has an internal space and a sink installation opening connected to the internal space, the drying sink is installed at the sink installation opening, and the air inlet of the air inlet channel and the air outlet of the air outlet channel are both connected to the internal space of the cabinet.

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