CN108498050B

CN108498050B - Drying system and washing electric appliance

Info

Publication number: CN108498050B
Application number: CN201810327554.0A
Authority: CN
Inventors: 李翔
Original assignee: Midea Group Co Ltd; Foshan Shunde Midea Washing Appliances Manufacturing Co Ltd
Current assignee: Wuhu Midea Smart Kitchen Appliance Manufacturing Co Ltd
Priority date: 2018-04-12
Filing date: 2018-04-12
Publication date: 2021-02-26
Anticipated expiration: 2038-04-12
Also published as: CN108498050A

Abstract

The invention discloses a drying system and a washing electric appliance, wherein the drying system comprises a first shell, a heat exchange device, a cooling device and a fan device, the first shell is used for being arranged outside an inner container, an air channel is formed in the first shell and comprises a first port communicated with the air inlet of the inner container and a second port communicated with the air outlet of the inner container, the heat exchange device is arranged on the first shell, a heat exchange channel communicated with the air duct is arranged in the heat exchange device, the heat exchange channel is positioned between the first port and the second port, the cooling device is used for being installed outside the inner container, the cooling device is used for cooling the heat exchange device, the fan device is arranged in the air duct, the fan device is used for sucking air from the second port and discharging the air from the first port through the heat exchange channel. In addition, condensed water in the condensed hot humid air can flow back to the inner container through the inner container air inlet.

Description

Drying system and washing electric appliance

Technical Field

The invention relates to the technical field of household appliances, in particular to a drying system and a washing appliance.

Background

The drying system of the dishwasher in the related art achieves the drying purpose by directly discharging the hot and humid air in the inner container to the outside of the dishwasher, or achieves the drying purpose by internally circulating and drying the hot and humid air in the inner container. However, the drying mode of directly discharging the hot humid air in the inner bag outside the dish washer because the discharged gas temperature is higher, can cause the harm to the cupboard in user's house, and inner loop drying system lacks effectual condensation, and drying effect is also not good, has reduced user experience.

Disclosure of Invention

The invention provides a drying system and a washing electric appliance.

The drying system provided by the embodiment of the invention is used for washing an electric appliance, the washing electric appliance comprises a liner, the liner is provided with a liner air inlet and a liner air outlet, the drying system comprises a first shell, a heat exchange device, a cooling device and a fan device, the first shell is used for being installed outside the liner, an air duct is formed in the first shell, the air duct comprises a first port used for communicating with the liner air inlet and a second port used for communicating with the liner air outlet, the heat exchange device is installed on the first shell, a heat exchange channel communicated with the air duct is arranged in the heat exchange device, the heat exchange channel is positioned between the first port and the second port, the cooling device is used for being installed outside the liner, the cooling device is used for cooling the heat exchange device, the fan device is installed in the air duct, and the fan device is used for sucking air from the second port and exhausting the air from the first port through the heat exchange channel And (6) discharging.

Among the above-mentioned drying system, owing to be provided with heat transfer passageway between two mouths in the wind channel, when being used for washing electrical apparatus with drying system like this, in drying process, cooling device and fan device can be opened simultaneously, fan device can carry out the heat exchange with heat transfer device through heat transfer passageway with the hot humid air suction wind channel of inner bag like this, cooling device can cool off heat transfer device, heat transfer device obtains effectual cooling, make the air in the wind channel obtain effective condensation like this, promote the condensation effect. In addition, condensed water in the condensed hot humid air can flow back to the inner container through the inner container air inlet.

In some embodiments, the drying system includes a second housing and a heat dissipation fin, the second housing connects the cooling device and the heat exchange device, a cooling channel is formed in the second housing, the heat dissipation fin is disposed on an outer surface of the heat exchange device, and the cooling device is configured to convey a cooling medium to the heat exchange device and the heat dissipation fin through the cooling channel.

In certain embodiments, the drying system includes a plurality of baffles spaced within the air chute, the plurality of baffles positioned between the heat exchange channel and the first port.

In some embodiments, the drying system includes a water deflector movably disposed within the air duct, the water deflector configured to close and open the air duct, the water deflector separating the fan device and the first port when the water deflector closes the air duct.

In some embodiments, the first housing includes a first connection housing and a second connection housing detachably connected to each other, the first connection housing defines the first port, the second connection housing defines the second port, the heat exchange device is mounted to the second connection housing, and the fan device is mounted in the air duct of the first connection housing.

In some embodiments, the drying system includes a return pipe, the first connection housing defines a first connection port, the second connection housing defines a second connection port, the second connection port is located downstream of the air duct with respect to the heat exchange device, the first connection port is located downstream of the air duct with respect to the fan device, and the return pipe connects the first connection port and the second connection port.

In some embodiments, the return pipe detachably connects the first connection port and the second connection port.

The washing electric appliance comprises an inner container and a drying system, wherein the inner container is provided with an inner container air inlet and an inner container air outlet, the drying system comprises a first shell, a heat exchange device, a cooling device and a fan device, wherein the first shell is arranged outside the inner container, an air channel is formed in the first shell and comprises a first port communicated with the air inlet of the inner container and a second port communicated with the air outlet of the inner container, the heat exchange device is arranged on the first shell, a heat exchange channel communicated with the air duct is arranged in the heat exchange device, the heat exchange channel is positioned between the first port and the second port, the cooling device is arranged outside the inner container, the cooling device is used for cooling the heat exchange device, the fan device is arranged on the air duct, the fan device is used for sucking air from the first port and discharging the air from the second port through the heat exchange channel.

Among the above-mentioned washing electrical apparatus, owing to be provided with heat transfer passageway between two mouths in the wind channel, when being used for washing electrical apparatus with drying system like this, in the drying process, cooling device and fan device can be opened simultaneously, fan device can carry out the heat exchange with heat transfer device through heat transfer passageway with the hot humid air suction wind channel of inner bag like this, cooling device can cool off heat transfer device, heat transfer device obtains effectual cooling, make the air in the wind channel obtain effective condensation like this, promote the condensation effect. In addition, condensed water in the condensed hot humid air can flow back to the inner container through the inner container air inlet.

In some embodiments, the drying system includes a second casing and heat dissipation fins, the second casing is installed outside the inner container, the second casing connects the cooling device and the heat exchange device, a cooling channel is formed in the second casing, the heat dissipation fins are disposed on an outer surface of the heat exchange device, and the cooling device is configured to convey a cooling medium to the heat exchange device and the heat dissipation fins through the cooling channel.

In some embodiments, the inner container includes a top plate and a side plate, the top plate is connected to the side plate, the top plate is provided with the inner container air outlet, the side plate is provided with the inner container air inlet, the second connecting casing is mounted on the top plate and the side plate, the first connecting casing is mounted on the side plate, and the lower end of the second connecting casing is provided with the first connecting port.

Additional aspects and advantages of embodiments of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a partial perspective view of a washing appliance in accordance with an embodiment of the present invention;

FIG. 2 is a schematic view, partly in section, of a washing appliance according to an embodiment of the invention;

FIG. 3 is another schematic sectional view of a portion of a washing appliance in accordance with an embodiment of the present invention;

FIG. 4 is a schematic diagram of a further portion of the washing appliance in accordance with an embodiment of the present invention;

FIG. 5 is a schematic diagram of a portion of a washing appliance according to an embodiment of the present invention;

fig. 6 is a schematic perspective view of a heat exchange device of a drying system according to an embodiment of the present invention.

Description of the main element symbols:

a washing appliance 100;

the drying system 10, the first housing 11, the air duct 111, the first port 112, the second port 113, the first connecting housing 114, the third connecting housing 1141, the fourth connecting housing 1142, the fifth connecting housing 1143, the first connecting port 1144, the second connecting housing 115, the inflection point 1150, the second connecting port 1151, the inclined surface 1152, the heat exchanging device 12, the heat exchanging channel 121, the heat sink 1211, the cooling device 13, the fan device 14, the second housing 15, the cooling channel 151, the heat dissipating fin 16, the flow guide plate 17, the water blocking plate 18, the return pipe 19, the inner container 20, the inner container air inlet 21, the inner container air outlet 22, the top plate 23, the air inlet 231, the side plate 24, and the connecting plate 25.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the description of the present invention, it should be noted that the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected unless otherwise explicitly stated or limited. Either mechanically or electrically. Either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Referring to fig. 1 to 6, a drying system 10 according to an embodiment of the present invention is used for a washing appliance 100. The washing appliance 100 includes an inner container 20. The inner container 20 is provided with an inner container air inlet 21 and an inner container air outlet 22. The drying system 10 comprises a first housing 11, heat exchanging means 12, cooling means 13 and fan means 14. The first housing 11 is adapted to be mounted outside the inner container 20. An air duct 111 is formed in the first housing 11. The air duct 111 includes a first port 112 for communicating with the liner air inlet 21 and a second port 113 for communicating with the liner air outlet 22. The heat exchanging device 12 is installed at the first housing 11. A heat exchange passage 121 connected to the air duct 111 is provided in the heat exchange device 12. The heat exchange passage 121 is located between the first port 112 and the second port 113. The cooling device 13 is mounted outside the inner container 20. The cooling device 13 is used for cooling the heat exchanging device 12. The fan device 14 is installed in the air duct 111. The fan device 14 is used to draw air in from the second port 113 and to discharge the air from the first port 112 through the heat exchange passage 121.

In the above-mentioned drying system 10, because the heat exchange channel 121 is provided between two mouths of the air duct 111, when the drying system 10 is used for washing the electric appliance 100, in the drying process, the cooling device 13 and the fan device 14 can be simultaneously started, so the fan device 14 can draw the hot and humid air of the inner container 20 into the air duct 111 and exchange heat with the heat exchange device 12 through the heat exchange channel 121, the cooling device 13 can cool the heat exchange device 12, the heat exchange device 12 is effectively cooled, so the air in the air duct 111 is effectively condensed, and the condensing effect is improved. In addition, condensed water in the condensed hot and humid air can flow back into the inner container 20 through the inner container air inlet 21.

It should be noted that the hot and humid air entering the air duct 111 can entirely enter the heat exchange channel 121.

In the present embodiment, the washing appliance 100 includes a drying system 10 and an inner container 20. The inner container 20 is provided with an inner container air inlet 21 and an inner container air outlet 22. The first housing 11 is mounted outside the inner container 20. The first port 112 is communicated with the liner gas inlet 21, namely the first port 112 is a liquid or gas outlet. The second port 113 is communicated with the liner air outlet 22, namely the second port 113 is an inlet of hot and humid air. The cooling device 13 is installed outside the inner container 20. When the washing appliance 100 is in the drying process, the cooling device 13 and the blower device 14 can be turned on simultaneously, so that the blower device 14 can draw the hot and humid air in the inner container 20 into the air duct 111 through the inner container air outlet 22 and the second opening 113, and exchange heat with the heat exchange device 12 through the heat exchange channel 121.

In certain embodiments, the drying system 10 includes a second housing 15 and heat dissipating fins 16. The second housing 15 connects the cooling device 13 and the heat exchanging device 12. The second housing 15 has a cooling passage 151 formed therein. The heat radiating fins 16 are provided on the outer surface of the heat exchanging device 12. The cooling device 13 is used for conveying a cooling medium to the heat exchanging device 12 and the heat radiating fins 16 through the cooling channels 151. In this manner, the formation of the cooling passage 151 enables the cooling medium to be more stably and intensively delivered to the heat exchanging device 12 and the heat radiating fins 16, thereby improving the cooling effect.

The heat exchanger 12 may be configured as appropriate, and for example, the heat exchanger 12 may be configured in the shape of a plate heat sink. Secondly, the arrangement of the heat dissipation fins 16 may be set according to specific situations, for example, the heat dissipation fins 16 may be fixed on the outer surface of the heat exchange device 12 by welding or screwing. Further, when the cooling medium can pass through by the both sides face that heat transfer device 12 was carried on the back mutually, can set up fin 16 at the both sides face that heat transfer device 12 was carried on the back mutually to improve the area of fin 16 and cooling medium contact, then improve the heat transfer effect. Furthermore, the orthographic projection area of the heat dissipation fins 16 on the outer surface of the heat exchange device 12 can be made to cover the outer surface of the heat exchange device 12, which can improve the heat exchange efficiency between the heat exchange device 12 and the cooling medium. Of course, the heat exchange device 12 and the heat dissipating fins 16 may be made of aluminum material, which has high heat transfer efficiency and light weight. In addition, the structure of the heat dissipation fins 16 may be set according to specific situations, for example, the heat dissipation fins 16 may be made in a wave shape to increase the contact area with the refrigerant medium. In addition, the entire heat radiation fin 16 may be inclined at a certain angle in the refrigerant flow direction with respect to the outer surface of the heat exchanger 12 to reduce the resistance to the refrigerant flow. In the example shown in fig. 6, a heat radiating fin 1211 for enhancing heat exchange efficiency is provided in the heat exchange passage 121. The heat sink 1211 is formed in a wave shape as a whole. The heat exchanger 12 has a corrugated heat sink 16 formed on its outer surface.

In addition, the refrigerant medium may be a gaseous medium or a liquid medium. In the present embodiment, the refrigerant medium is air. The cooling device 13 is a cold air device, i.e. a device for drawing in external air as a refrigerant medium. In addition, the air channel 111 through which the hot and humid air flows and the cooling channel 151 through which the cold air flows are relatively independent, so that only heat exchange exists between the air in the inner container 20 and the outside, and no potential safety hazard exists.

In certain embodiments, the drying system 10 includes a plurality of baffles 17. A plurality of baffles 17 are arranged at intervals in the air duct 111. A plurality of baffles 17 are positioned between the heat exchange channel 121 and the first port 112. Thus, the water condensed by the heat exchange channel 121 can be guided to the first port 112 by the flow guiding effect of the flow guiding plate 17. And the guide plate 17 also has a certain buffer effect, so that gas and liquid can be further separated, and the dryness of the condensed air is ensured.

In the example shown in fig. 3, the plurality of baffles 17 are arranged at intervals and form a bent flow passage between the plurality of baffles 17, so that the path of the condensed water and air flowing in the flow passage is long, and further gas-liquid separation can be achieved.

In some embodiments, the drying system 10 includes a water deflector 18 movably disposed within the air chute 111. The water guard 18 is configured to close and open the air passage 111. When the water deflector 18 closes the air passage 111, the water deflector 18 separates the fan device 14 from the first port 112. Thus, when the air duct 111 is closed by the water blocking sheet 18, the water blocking sheet 18 can prevent the hot and humid air in the inner container 20 from flowing out through the inner container air inlet 21 and entering the fan device 14, which affects the normal service life of the fan device 14.

In some embodiments, the first housing 11 includes a first connection housing 114 and a second connection housing 115 that are removably connected. The first connection housing 114 defines a first port 112. The second connecting housing 115 is opened with a second port 113. The heat exchanging device 12 is installed to the second connection housing 115. The fan apparatus 14 is installed in the air duct 111 of the first connection housing 114. In this manner, since the first connection housing 114 and the second connection housing 115 are detachably connected, it is convenient to mount and dismount the first housing 11.

In the present embodiment, the first connection housing 114 includes a third connection housing 1141, a fourth connection housing 1142, and a fifth connection housing 1143. The fourth connection housing 1142 connects the third connection housing 1141 and the fifth connection housing 1143. The fifth connection housing 1143 connects the second connection housing 115 and the fourth connection housing 1142. The third connecting housing 1141 defines a first port 112. The fan device 14 is installed in the air duct 111 of the fourth coupling housing 1142. The water guard plate 18 is movably installed in the air duct 111 of the fourth connecting housing 1142. Thus, the first housing 11 integrally forms a detachable air duct structure, and is convenient to assemble.

In certain embodiments, the drying system 10 includes a return line 19. The first connection housing 114 defines a first connection port 1144. The second connection housing 115 defines a second connection port 1151. The second connection port 1151 is located downstream of the air chute 111 with respect to the heat exchange device 12. The first connection port 1144 is located downstream of the wind tunnel 111 with respect to the fan device 14. The return pipe 19 connects the first connection port 1144 and the second connection port 1151. Thus, the condensate generated after heat exchange by the heat exchange device 12 can flow into the return pipe 19 from the second connection port 1151, and can flow out from the first connection port 1144 under the guiding action of the return pipe 19 and then flow back into the inner container 20. The return pipe 19 is arranged to prevent condensate from entering the fan unit 14.

In some embodiments, the return tube 19 removably connects the first connection port 1144 and the second connection port 1151. In this way, the mounting and dismounting of the return pipe 19 is facilitated.

In the present embodiment, the water guard 18 is rotatably disposed in the air duct 111. When the washing appliance 100 is in the washing process, the cooling device 13 and the fan device 14 both keep the closed state (the water blocking sheet 18 shown in the state a), and the water blocking sheet 18 can close the air duct 111 under the action of its own gravity, so as to prevent the hot and humid air in the inner container 20 from flowing out through the inner container air inlet 21 and entering the fan device 14, thereby affecting the service life of the fan device 14. When the washing appliance 100 is in a dry state, the cooling device 13 and the blower device 14 are simultaneously turned on, so that the blower device 14 can draw the hot and humid air in the inner container 20 into the air duct 111 through the inner container air outlet 22 and the second port 113, and exchange heat with the heat exchange device 12 through the heat exchange channel 121. And the cooling device 13 can draw in external air to form an air flow for cooling the heat exchanging device 12. The condensed water formed after cooling by the heat exchange device 12 can flow back to the inner container 20 through the return pipe 19, and the condensed air can blow up the water retaining sheet 18 (the water retaining sheet 18 shown in the state B) under the action of the fan device 14, so that the air can return to the inner container 20 through the inner container air inlet 21, the purpose of replacing the humid air in the inner container 20 is achieved, the air circulation in the inner container 20 can be heated, the evaporation of the residual water on the surface of the tableware in the inner container 20 is accelerated, and a better drying effect is achieved.

In the present embodiment, the inner container 20 includes a top plate 23 and a side plate 24. The top plate 23 connects the side plates 24. The top plate 23 is provided with a liner air outlet 22. The side plate 24 is provided with a liner air inlet 21. The second connection housing 115 is attached to the top plate 23 and the side plate 24. The first coupling housing 114 is mounted to the side plate 24. The lower end of the second connection housing 115 is provided with a first connection port 1144. Like this, when installing heat transfer device 12 on second connection housing 115, can make to form the wind channel between the surface of heat transfer device 12 and roof 23, cooling device 13 is when extracting outside room temperature air cooling heat transfer device 12 like this, also can make the surface temperature of roof 23 obtain reducing, make the inside top region of inner bag 20 form relatively low temperature region, make the hot humid air in inner bag 20 here condensation, if make the top of inner bag 20 form the curved surface that has certain radian simultaneously, the curved surface that this moment forms can make the comdenstion water that the top produced directly drip on the tableware, influence the drying, but the landing is to the lateral wall, the drying of tableware can also be strengthened to this low temperature region.

Further, the first connection port 1144 may be opened at a lower position of the lower end of the second connection housing 115. For example, the opening position of the first connector 1144 is lower than the position of the inlet of the second connector housing 115. In the example shown in fig. 2, the opening position of the first connector 1144 is lower than the position of the inflection point 1150 of the second connection housing 115, and the second connection housing 115 is formed with a slope 1152 connecting the first connector 1144 and the inflection point 1150. The slope 1152 is inclined upward from the first connector 1144 toward the inflection point 1150. Thus, the slope 1152 enables the condensate to flow back to the first connection port 1144. This further prevents condensed water from entering the fan device 14.

In the present embodiment, the washing appliance 100 includes the connection plate 25. The connecting plate 25 connects the side plates 24. A plurality of air inlet holes 231 are opened at the end side of the connection plate 25. The air inlet 231 communicates with the cooling passage 151. The cooling device 13 may draw air into the cooling tunnel 151 through the plurality of air inlet holes 231 to form an air flow for cooling the heat exchanging device 12. Wherein, the connecting plate 25 and the side plate 24 can be an integral structure. In the example shown in fig. 1, the connection plate 25 is connected to the side plate 24 as a back plate, i.e. the washing appliance 100 is back-fed.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The disclosure herein provides many different embodiments or examples for implementing different features of the invention. In order to simplify the disclosure of the present invention, the components and arrangements of specific examples are described herein. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or uses of other materials.

In the description of the present specification, reference to the description of the terms "one embodiment", "some embodiments", "an illustrative embodiment", "an example", "a specific example", or "some examples", etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. The utility model provides a drying system for wash electrical apparatus, wash electrical apparatus includes the inner bag, inner bag air inlet and inner bag gas outlet have been seted up to the inner bag, its characterized in that, drying system includes:

the air duct comprises a first port communicated with the air inlet of the inner container and a second port communicated with the air outlet of the inner container;

the heat exchange device is arranged on the first shell, a heat exchange channel communicated with the air channel is arranged in the heat exchange device, and the heat exchange channel is positioned between the first port and the second port;

the cooling device is used for being arranged outside the inner container and used for cooling the heat exchange device;

a fan device mounted in the air duct for sucking air from the second port and discharging the air from the first port through the heat exchange channel;

the first shell comprises a first connecting shell and a second connecting shell which are detachably connected, the first connecting shell is provided with the first port, the second connecting shell is provided with the second port, the heat exchange device is installed in the second connecting shell, and the fan device is installed in the air duct positioned in the first connecting shell;

the inner container comprises a top plate and a side plate, the top plate is connected with the side plate, the top plate is provided with an inner container air outlet, the side plate is provided with an inner container air inlet, the second connecting shell is installed on the top plate and the side plate, the first connecting shell is installed on the side plate, when the heat exchange device is installed on the second connecting shell, an air channel is formed between the heat exchange device and the surface of the top plate, the cooling device can cool the heat exchange device by extracting external room-temperature air, the surface temperature of the top plate can be reduced, a low-temperature area is formed in the top area inside the inner container, hot and humid air in the inner container is condensed in the low-temperature area, and a curved surface with a certain radian is formed at the top of the inner container.

2. The drying system of claim 1, wherein the drying system comprises a second housing and a heat sink, the second housing connects the cooling device and the heat exchanging device, the second housing forms a cooling channel therein, the heat sink is disposed on an outer surface of the heat exchanging device, and the cooling device is configured to convey a cooling medium to the heat exchanging device and the heat sink through the cooling channel.

3. The drying system of claim 1, including a plurality of baffles spaced within the air duct, the plurality of baffles being positioned between the heat exchange channel and the first port.

4. The drying system of claim 1, comprising a water deflector movably disposed within the air duct, the water deflector configured to close and open the air duct, the water deflector separating the fan device and the first port when the water deflector closes the air duct.

5. The drying system of claim 1, wherein the drying system includes a return conduit, the first connection housing defines a first connection port, the second connection housing defines a second connection port, the second connection port is located downstream of the air duct with respect to the heat exchanging device, the first connection port is located downstream of the air duct with respect to the fan device, and the return conduit connects the first connection port and the second connection port.

6. Drying system according to claim 5, in which the return conduit detachably connects the first connection opening and the second connection opening.

7. The utility model provides a washing electric appliance, its characterized in that includes inner bag and drying system, inner bag air inlet and inner bag gas outlet have been seted up to the inner bag, drying system includes:

the first shell is arranged outside the inner container, an air channel is formed in the first shell, and the air channel comprises a first port communicated with the air inlet of the inner container and a second port communicated with the air outlet of the inner container;

the cooling device is arranged outside the inner container and used for cooling the heat exchange device;

a fan device mounted in the air duct for sucking air from the first port and discharging the air from the second port through the heat exchange channel;

the first shell comprises a first connecting shell and a second connecting shell which are detachably connected, the first port is formed in the first connecting shell, the second port is formed in the second connecting shell, the heat exchange device is installed in the second connecting shell, the fan device is installed in the air duct located in the first connecting shell, the inner container comprises a top plate and a side plate, the top plate is connected with the side plate, an inner container air outlet is formed in the top plate, an inner container air inlet is formed in the side plate, the second connecting shell is installed on the top plate and the side plate, the first connecting shell is installed on the side plate, when the heat exchange device is installed on the second connecting shell, an air duct is formed between the heat exchange device and the surface of the top plate, and the cooling device extracts outside room-temperature air to cool the heat exchange device, the surface temperature of the top plate can be reduced, a low-temperature area is formed in the top area inside the inner container, hot and humid air in the inner container is condensed in the low-temperature area, and a curved surface with a certain radian is formed at the top of the inner container.

8. The washing appliance according to claim 7, wherein the drying system comprises a second housing and heat dissipating fins, the second housing is mounted outside the inner container, the second housing connects the cooling device and the heat exchanging device, a cooling channel is formed in the second housing, the heat dissipating fins are arranged on the outer surface of the heat exchanging device, and the cooling device is used for conveying a cooling medium to the heat exchanging device and the heat dissipating fins through the cooling channel.

9. The washing appliance according to claim 7, wherein the drying system comprises a return pipe, the first connection housing defines a first connection port, the second connection housing defines a second connection port, the second connection port is located downstream of the air duct with respect to the heat exchange device, the first connection port is located downstream of the air duct with respect to the fan device, and the return pipe connects the first connection port and the second connection port.