Washing and drying integrated machine

Abstract

The present application relates to a kind of washing and drying integrated machine, which comprises: cabinet;Outer cylinder, back face is provided with reinforcing rib, outer cylinder back face is provided with condensation tank;The rear wall of the inside of outer cylinder is provided with the return air port that is connected with the inside of outer cylinder and condensation tank;Inner cylinder, is located in outer cylinder;Drying air duct, the front end of inner cylinder is connected with return air port;Condensing plate, covers the rear end slot of condensation tank, to form condensing cavity;The back face of condensing plate does not protrude from the back face of reinforcing rib;Wet hot air in inner cylinder can enter outer cylinder, and enter condensing cavity through return air port, contact with condensing plate and carry out heat exchange, so that the moisture in air condenses, then enters drying air duct again.Utilize the condensation tank of the back face of outer cylinder and condensing plate to form condensing cavity, the back face of condensing plate does not protrude from the back face of reinforcing rib, it is favorable to reduce the volume of whole machine, wet hot air can enter condensing cavity and contact with condensing plate in large area, improve heat exchange efficiency, improve condensing efficiency, shorten drying time.

Description

Technical Field

[0001] This invention relates to the field of garment processing equipment technology, and in particular to a washer-dryer combo machine. Background Technology

[0002] With social progress and technological development, washer-dryer combos have become common household appliances. As living standards improve at a faster pace, people are using washer-dryer combos more frequently and have increasingly higher requirements for their drying performance.

[0003] In washer-dryer combos, the drying structure consists of a drying duct, a fan, and a condenser. The condenser is used for heat exchange between the condensed water and the humid air. Currently, most washer-dryer combos on the market typically use a backpack condenser. Backpack condensers are bulky and require significant space at the back of the washer-dryer, resulting in a thicker overall machine that cannot meet the needs of users for embedded installation. Some washer-dryer combos use the rear wall of the outer drum as a condenser, reducing the overall thickness. However, this solution has a lower thermal conductivity coefficient and lower heat exchange efficiency, failing to further improve drying efficiency and resulting in longer drying times and low heat exchange efficiency within the condenser. Summary of the Invention

[0004] The purpose of this invention is to provide a washer-dryer combo machine to optimize the structure of washer-dryer combos in related technologies, reduce the size of the machine body, improve condensation efficiency, and shorten drying time.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] According to one aspect of the present invention, a washer-dryer combo is provided, comprising: a housing forming the outer shell of the washing machine, the front surface of which has a clothes inlet; an outer tub disposed within the housing and configured to hold washing water, the front end face of the outer tub having an opening opposite to the clothes inlet; at least a portion of the back surface of the outer tub has protruding reinforcing ribs, and a portion of the back surface of the outer tub has recessed condensation grooves, the openings of the condensation grooves facing the back side of the outer tub; a return air vent is provided on the rear wall inside the outer tub, the return air vent connecting the interior of the outer tub and the condensation grooves; and an inner tub disposed within the outer tub. The inner drum forms a garment processing chamber for accommodating clothing, and the inner drum can rotate within the outer drum. A drying air duct is located outside the outer drum, with one end connected to the return air inlet and the other end connected to the front end of the inner drum. A condenser plate covers the rear end of the condenser groove to form a condenser chamber. The back of the condenser plate does not protrude from the back of the reinforcing rib. The humid and hot air generated by drying clothes in the garment processing chamber of the inner drum can enter the outer drum and enter the condenser chamber through the return air inlet, contact the condenser plate and exchange heat, causing the moisture in the air to condense before entering the drying air duct.

[0007] In some embodiments of this application, the condenser plate is detachably sealed at the rear end opening of the condenser tank; or, the condenser plate is integrally formed at the rear end opening of the condenser tank.

[0008] In some embodiments of this application, a return air channel is provided on the outer wall of the outer cylinder, one end of the return air channel is connected to the top area of ​​the condensation chamber, and the other end of the return air channel is connected to the drying air duct; the return air inlet is located in the bottom area of ​​the condensation chamber.

[0009] In some embodiments of this application, the return air vent is located in the lower region of the rear wall of the outer cylinder; the condensation groove has an arc-shaped structure extending vertically, and the condensation groove is arranged around the axis of the outer cylinder; the shape of the condensation plate is consistent with the shape of the condensation groove.

[0010] In some embodiments of this application, a water spray pipe is provided in the top area of ​​the condensation tank, and a water spray nozzle is provided on the water spray pipe, which can spray water toward the condensation plate through the water spray nozzle.

[0011] In some embodiments of this application, one end of the water spray pipe is located in the return air channel, and the other end of the water spray pipe extends into the condensation tank; a water inlet pipe is provided on the outer wall of the return air channel, and one end of the water inlet pipe extends into the return air channel and is connected to the water spray pipe.

[0012] In some embodiments of this application, the return air duct includes an integrally connected back duct and a side duct; the back duct is located on the back outer wall of the outer cylinder, the side duct is located on the peripheral outer wall of the outer cylinder, the outer wall of the side duct has an air outlet, and the air outlet is connected to the condensation tank in sequence through the side duct and the back duct; the water inlet pipe is located at the top of the back duct or at the top of the junction of the side duct and the back duct.

[0013] In some embodiments of this application, the condenser plate has a protruding guide rib on its side wall located inside the condensation cavity. The guide rib is used to guide the condensed water sprayed from the water spray pipe onto the condenser plate.

[0014] In some embodiments of this application, the condenser plate is made of metal.

[0015] In some embodiments of this application, a stepped groove is recessed on the back of the outer cylinder at the peripheral edge of the condensation tank; the peripheral edge of the condensation plate abuts against the stepped groove, and the back of the condensation plate is flush with the back of the reinforcing rib.

[0016] As can be seen from the above technical solutions, the embodiments of the present invention have at least the following advantages and positive effects:

[0017] In the washer-dryer of this invention, a condensation groove is recessed on the back of the outer drum, and a condensation plate is used to seal the rear opening of the condensation groove to form a condensation chamber. The back of the condensation plate does not protrude from the back of the reinforcing rib, so it does not occupy the volume of the outer drum and does not increase the size of the outer drum. Therefore, the structure of the condensation chamber and the condensation plate does not occupy the internal space of the whole machine, which helps to reduce the spatial size of the machine and reduce the overall volume. By using the return air vent on the rear wall of the outer drum in conjunction with the condensation groove and the drying air duct, an air drying circulation can be formed between the inner drum, the outer drum, and the drying air duct. This allows the hot and humid air generated by drying clothes in the inner drum to enter the outer drum and enter the condensation chamber from the return air vent to make large-area contact with the condensation plate. The hot and humid air is cooled and dehumidified by the condensation plate, which has a good dehumidification effect. This can improve the heat exchange efficiency, thereby improving the condensation efficiency of the washer-dryer, shortening the drying time, and improving the user experience. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a washer-dryer combo machine according to an embodiment of the present invention.

[0019] Figure 2 yes Figure 1 A schematic diagram of the internal structure of the inner and outer cylinders.

[0020] Figure 3 yes Figure 2 A schematic diagram of the three-dimensional structure.

[0021] Figure 4 yes Figure 2 Side view.

[0022] Figure 5 yes Figure 3 A structural diagram from another perspective.

[0023] Figure 6 yes Figure 2 Rear view.

[0024] Figure 7 yes Figure 6 A structural diagram from another perspective.

[0025] Figure 8 yes Figure 7 A schematic diagram of its decomposed structure.

[0026] Figure 9 yes Figure 8 A schematic diagram of the structure of the central condenser plate.

[0027] Figure 10 yes Figure 8 A schematic diagram of the structure without the condenser plate.

[0028] Figure 11 yes Figure 10 A magnified structural diagram of region A in the middle.

[0029] The following are the annotations in the attached drawings: 1. Cabinet body; 11. Clothing loading port; 12. Cabinet door; 2. Outer cylinder; 21. Reinforcing rib; 22. Condensation tank; 221. Step groove; 23. Return air vent; 24. Return air channel; 241. Back channel; 242. Side channel; 243. Air outlet; 25. First water inlet pipe; 26. Second water inlet pipe; 261. Water outlet; 27. Guide strip; 28. Drainage groove; 281. Drainage hole; 3. Condensation plate; 31. Guide rib; 4. Water spray pipe; 41. Water spray hole. Detailed Implementation

[0030] Typical embodiments embodying the features and advantages of the present invention will be described in detail in the following description. It should be understood that the present invention can have various variations in different embodiments without departing from the scope of the present invention, and the descriptions and illustrations herein are for illustrative purposes only and not intended to limit the present invention.

[0031] In the description of this application, it should 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", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0032] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0033] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0034] In washer-dryer combos, the drying structure consists of a drying duct, a fan, and a condenser. The condenser is used for heat exchange between the condensed water and the humid air. Currently, most washer-dryer combos on the market typically use a backpack condenser. Backpack condensers are bulky and require significant space at the back of the washer-dryer, resulting in a thicker overall machine that cannot meet the needs of users for embedded installation. Some washer-dryer combos use the rear wall of the outer drum as a condenser, reducing the overall thickness. However, this solution has a lower thermal conductivity coefficient and lower heat exchange efficiency, failing to further improve drying efficiency and resulting in longer drying times.

[0035] Figure 1 This is a schematic diagram of the structure of a washer-dryer combo machine according to an embodiment of the present invention. Figure 2 yes Figure 1 A schematic diagram of the internal structure of the outer and middle cylinders 2. Figure 3 yes Figure 2 A schematic diagram of the three-dimensional structure. Figure 4 yes Figure 2 Side view. Figure 5 yes Figure 3 A structural diagram from another perspective. Figure 6 yes Figure 2 Rear view.

[0036] Please see Figures 1 to 6 The washer-dryer provided in this embodiment of the invention mainly includes a housing 1, an outer cylinder 2 installed inside the housing 1, and a condenser plate 3 installed on the back of the outer cylinder 2.

[0037] The housing 1 typically adopts a rectangular hollow structure. As the outer shell of the washer-dryer combo, its appearance can be designed according to needs. The internal space of the housing 1 provides installation space for components such as the outer drum 2 and the inner drum.

[0038] Please see Figure 1 The front surface of the box body 1 is provided with a clothing loading port 11, which connects to the installation space inside the box body 1. The front side of the box body 1 is provided with a door 12, which is used to open and close the clothing loading port 11 on the front side of the box body 1, thereby opening and closing the installation space inside.

[0039] Please see Figures 2 to 5 The outer tub 2 is located within the installation space of the housing 1 and is fixedly positioned inside the housing 1. The outer tub 2 is a shell structure with an opening, which faces the clothing inlet 11 on the front side of the housing 1. The outer tub 2 is constructed as a container for holding washing water, meaning that the internal space of the outer tub 2 can be used to hold washing liquids, such as water.

[0040] The inner drum is rotatably disposed within the internal space of the outer drum 2, and a clothing handling chamber (not shown in the figure) is formed inside the inner drum for holding clothes to be washed. The opening of the inner drum is directly opposite the opening of the outer drum 2, that is, the front opening of the clothing handling chamber is directly opposite the opening of the outer drum 2 and the clothing inlet 11. Therefore, clothes can enter the clothing handling chamber sequentially from the clothing inlet 11 of the housing 1, the opening of the outer drum 2, and the opening of the inner drum.

[0041] In some embodiments, the outer drum 2 and the inner drum are arranged coaxially inside and outside. A hole is provided on the outer wall of the inner drum, allowing water from the outer drum 2 to enter the inner drum through this hole to wash the clothes in the inner drum's clothes-washing chamber. Simultaneously, during clothes drying, air from the inner drum's clothes-washing chamber can also enter the interior space of the outer drum 2 through this hole.

[0042] In some embodiments, a drive device (not shown in the figure) is provided inside the housing 1. The drive device is located outside the outer drum 2, and the output end of the drive device extends into the interior of the outer drum 2 from the shaft at the rear end of the outer drum 2 and is connected to the inner drum for transmission, so as to drive the inner drum to rotate relative to the outer drum 2, thereby washing the clothes in the inner drum.

[0043] Figure 7 yes Figure 6 A structural diagram from another perspective. Figure 8 yes Figure 7 A schematic diagram of its decomposed structure.

[0044] Please see Figures 6 to 8 At least a portion of the back of the outer cylinder 2 is provided with reinforcing ribs 21, which can be used to enhance the structural strength of the rear end wall of the outer cylinder 2.

[0045] In some embodiments, multiple reinforcing ribs 21 are provided, and the multiple reinforcing ribs 21 extend radially or circumferentially along the rear wall of the outer cylinder 2 and are interconnected in an interlaced manner to further improve the structural strength of the rear end wall of the outer cylinder 2. It should be noted that in other embodiments, the reinforcing ribs 21 may also extend along other directions of the rear wall of the outer cylinder 2.

[0046] Please see Figures 6 to 8 A portion of the back of the outer cylinder 2 is recessed with a condensation groove 22, which works in conjunction with the condensation plate 3 to form a condensation chamber. A return air inlet 23 is located on the rear wall inside the outer cylinder 2, connecting the interior of the outer cylinder 2 to the condensation groove 22; that is, the outer cylinder 2 can connect to the condensation chamber through the return air inlet 23. Therefore, air inside the outer cylinder 2 can enter the condensation chamber through the return air inlet 23 for condensation and dehumidification.

[0047] In some embodiments, the condensation groove 22 and the reinforcing rib 21 are distributed in different areas on the back of the outer cylinder 2. That is, the reinforcing rib 21 is not provided in the area where the condensation groove 22 is located, and the reinforcing rib 21 is distributed on the outer side or periphery of the condensation groove 22.

[0048] It should be noted that in some other embodiments, the condensation groove 22 may also be formed by the area where the reinforcing rib 21 is located being recessed forward.

[0049] Please see Figure 8 The opening of the condensation tank 22 faces the back side of the outer cylinder 2. The rear opening of the condensation tank 22 does not extend beyond the rear end face of the reinforcing rib 21, meaning the depth of the condensation tank 22 is less than or equal to the depth of the reinforcing rib 21. Therefore, the structure of the condensation tank 22 does not increase the volume of the outer cylinder 2, does not occupy the internal space of the entire machine, and is conducive to optimizing the structure of the machine body and reducing the spatial dimensions of the machine body.

[0050] Please see Figures 2 to 8In some embodiments, the outer cylinder 2 is provided with a return air channel 24. One end of the return air channel 24 is connected to the condenser 22, and the other end of the return air channel 24 is provided with an air outlet 243. The air outlet 243 is used to connect to one end of the drying air duct (not shown in the figure), and the other end of the drying air duct is connected to the front end of the inner cylinder, so that the drying air duct can connect to the clothes handling chamber, and an air circulation can be formed between the inner cylinder, the outer cylinder 2, the return air channel 24, and the drying air duct. Specifically, the air in the clothes handling chamber of the inner cylinder can enter the interior of the outer cylinder 2, enter the condenser through the return air outlet 23 on the rear wall of the outer cylinder 2, then enter the return air channel 24 through the condenser, and then return to the clothes handling chamber through the drying air duct, thereby forming an air circulation flow.

[0051] In some embodiments, a heater and a fan are provided within the drying duct. The heater heats the air within the drying duct, generating high-temperature air. The fan provides airflow, allowing the high-temperature air from the drying duct to enter the garment handling chamber of the inner drum, drying the garments within.

[0052] Figure 9 yes Figure 8 A schematic diagram of the structure of the central condenser plate 3.

[0053] Please see Figures 6 to 9 The condenser plate 3 is located on the outer wall of the back of the outer cylinder 2. The condenser plate 3 covers the rear end opening of the condenser tank 22, thus forming a condensation chamber with the tank wall of the condenser tank 22. The condenser plate 3 is used as a condenser to condense the air entering the condensation chamber, thereby dehumidifying the air flowing through it.

[0054] Specifically, high-temperature air from the drying duct enters the garment processing chamber, heating the clothes and removing moisture, thus creating high-temperature, high-humidity gas. This gas then enters the outer drum 2, where the humid air enters the condenser chamber through the return air vent 23. The humid air in the condenser chamber comes into large-area contact with the condenser plate 3, resulting in heat exchange and a reduction in temperature. Moisture in the air condenses on the condenser plate 3, removing the moisture. The cooled, dry air then re-enters the drying duct through the return air channel 24 for reheating, thus achieving the drying cycle of the washer-dryer and fulfilling its drying function.

[0055] Please see Figures 6 to 9In some embodiments, the condenser plate 3 is made of metal. Specifically, the condenser plate 3 can be made of stainless steel or aluminum alloy. Utilizing the properties of the metal material of the condenser plate 3, its thermal conductivity coefficient is much higher than that of plastic materials, resulting in high heat exchange efficiency. This allows humid and hot air to be cooled first by the metal condenser plate 3, achieving a good dehumidification effect, thereby improving the heat exchange efficiency with the air, and thus enhancing the condensation efficiency of the washer-dryer combo and shortening the drying time.

[0056] It should be noted that in other embodiments, the condenser plate 3 may also be made of other materials with high thermal conductivity.

[0057] In some embodiments, the condenser plate 3 is detachably sealed at the rear end opening of the condenser tank 22. It should be noted that in other embodiments, the condenser plate 3 can also be integrally formed at the rear end opening of the condenser tank 22 by injection molding.

[0058] In some embodiments, the condenser plate 3 is provided with a fixing hole, and the condenser plate 3 can be detachably sealed to the rear end of the condenser tank 22 by means of screws inserted in the fixing hole.

[0059] In some embodiments, the back of the condenser plate 3 does not protrude from the back of the reinforcing rib 21. Therefore, compared with the traditional drying solution, the structure of the condenser chamber and the condenser plate 3 will not increase the volume of the outer cylinder 2, nor will it occupy the external space of the outer cylinder 2, nor will it occupy the internal space of the whole machine. This is conducive to reducing the size and volume of the whole machine, achieving the ultimate space design, and meeting the user's embedded installation needs.

[0060] Figure 10 yes Figure 8 A schematic diagram of the structure without the condenser plate 3. Figure 11 yes Figure 10 A magnified structural diagram of region A in the middle.

[0061] Please see Figures 8 to 11 In some embodiments, a stepped groove 221 is recessed on the back of the outer cylinder 2 at the peripheral edge of the condensation tank 22. The stepped groove 221 is annular and arranged around the peripheral edge of the condensation tank 22. The peripheral edge of the condensation plate 3 abuts against the stepped groove 221, and the back of the condensation plate 3 is flush with the back of the reinforcing rib 21. Therefore, the structure of the condensation plate 3 does not increase the volume of the outer cylinder 2 and does not occupy the internal space of the whole machine, which is conducive to optimizing the structure of the machine body and reducing the spatial size of the machine body.

[0062] It should be noted that in some other embodiments, the back side of the condenser plate 3 may also be lower than the back side of the reinforcing rib 21.

[0063] Please see Figures 3 to 9In some embodiments, the return air channel 24 is located in the top region of the outer wall of the outer cylinder 2, with one end of the return air channel 24 connected to the top region of the condensation chamber, and the return air inlet 23 located in the bottom region of the condensation chamber. Therefore, the humid and hot air inside the outer cylinder 2 can enter the condensation chamber through the bottom, flow upwards along the condensation groove 22 and the condensation plate 3 to the top of the condensation chamber, and then enter the return air channel 24. The condensate produced after the humid and hot air is condensed by the condensation plate 3 can flow downwards through the condensation plate 3 to the bottom of the condensation chamber, and return to the interior of the outer cylinder 2 through the return air inlet 23.

[0064] In some embodiments, the condensation trough 22 has an arc or semi-circular outline extending vertically, the return air inlet 23 is located in the lower region of the rear wall of the outer cylinder 2, and the condensation trough 22 is arranged around the axis of the outer cylinder 2. Meanwhile, the shape of the condensation plate 3 is consistent with the shape of the condensation trough 22. Therefore, while shortening the distance between the return air inlet 23 and the return air channel 24, the length of the condensation path can be effectively guaranteed, ensuring the condensation efficiency of the condensation chamber and the condensation plate 3.

[0065] It should be noted that in other embodiments, the condensation tank 22 and the condensation plate 3 may also adopt other shapes and structures, such as U-shaped, C-shaped or V-shaped structures, which are not limited here.

[0066] Please see Figures 8 to 11 In some embodiments, a water spray pipe 4 is provided inside the condensation chamber, and the water spray pipe 4 has multiple water spray holes 41, at least some of which can spray water toward the condenser plate 3. Therefore, the water spray pipe 4 can spray water toward the condenser plate 3 through the water spray holes 41, thereby reducing the temperature of the condenser plate 3 and improving the heat exchange efficiency between the condenser plate 3 and the humid air in the condensation chamber. At the same time, the condensed water can also directly exchange heat with the humid air in the condensation chamber, condensing and dehumidifying the humid air, thereby improving the condensation efficiency and drying efficiency.

[0067] It should be noted that in other embodiments, some of the multiple spray holes 41 on the spray pipe 4 may spray water toward other walls of the condensation tank 22.

[0068] In some embodiments, one end of the water spray pipe 4 is disposed in the return air channel 24 to facilitate the fixed installation of the water spray pipe 4 in the return air channel 24. The other end of the water spray pipe 4 extends into the condensation tank 22, that is, extends into the condensation chamber.

[0069] In some embodiments, a first water inlet pipe 25 is provided on the outer wall of the return air duct 24, and the first water inlet pipe 25 is located on the upper side of the top of the return air duct 24. One end of the first water inlet pipe 25 extends into the return air duct 24 and is connected to the water spray pipe 4, and the other end of the first water inlet pipe 25 is used for connecting to an external condensate water pipeline. Therefore, condensate water can be supplied to the water spray pipe 4 through the first water inlet pipe 25, so that the water spray pipe 4 can spray water onto the condenser plate 3 or other cavity walls of the condensation chamber through the water spray holes 41, thereby improving condensation efficiency and drying efficiency.

[0070] Please see Figures 2 to 11 In some embodiments, the return air duct 24 includes an integrally connected back duct 241 and side duct 242. The back duct 241 protrudes from the rear wall inside the outer cylinder 2 and communicates with the interior of the outer cylinder 2 via a return air inlet 23. The side duct 242 protrudes from the top region of the peripheral wall of the outer cylinder 2 and communicates with the interior of the condensation chamber via the back duct 241. A first water inlet pipe 25 is disposed at the top of the back duct 241, or at the top of the junction of the back duct 241 and the side duct 242. The upper end of the water spray pipe 4 extends into the back duct 241 and is connected to the first water inlet pipe 25.

[0071] It should be noted that the first water inlet pipe 25 can also be located on the outer wall of the side channel 242.

[0072] Please see Figures 6 to 9 In some embodiments, the condenser plate 3 has a guide rib 31 protruding on its side wall inside the condensation chamber. When the water spray pipe 4 sprays condensed water onto the condenser plate 3, the guide rib 31 can guide the condensed water, extend the flow path of the condensed water, and thus increase the heat exchange area between the condensed water and the condenser plate 3 and the humid air, thereby improving the condensation efficiency and drying efficiency.

[0073] In some embodiments, the guide ribs 31 have a continuously bent zigzag structure, and the guide ribs 31 extend and are arranged over most of the area of ​​the condenser plate 3 to further improve the flow path of the condensate. It should be noted that in other embodiments, the guide ribs 31 may also have other shapes such as arc or wave, that is, the specific shape of the guide ribs 31 is not limited.

[0074] Please see Figures 2 to 5In some embodiments, the top of the outer cylinder 2 is further provided with a second water inlet pipe 26. One end of the second water inlet pipe 26 is connected to the interior of the outer cylinder 2, and the other end is used to connect to a condensate water pipe, allowing condensate water to enter the outer cylinder 2 through the second water inlet pipe 26 and flow downward along the rear wall inside the outer cylinder 2. Simultaneously, multiple guide strips 27 protrude from the rear wall inside the outer cylinder 2, which are used to guide the condensate water. The guide strips 27 have an arc or circular arc structure and extend downwards. The top of a portion of the guide strips 27 extends directly below the outlet 261 of the second water inlet pipe 26, while other portions of the guide strips 27 are spaced apart below another guide strip 27, so that multiple guide strips 27 can be interconnected.

[0075] When the condensate in the second water inlet pipe 26 flows to the rear wall inside the outer cylinder 2, the condensate can flow along the guide strip 27 on the rear wall inside the outer cylinder 2. This condensate can reduce the temperature of the rear wall inside the outer cylinder 2 and condense the air inside the outer cylinder 2, so that the hot and humid air inside the outer cylinder 2 can be initially condensed by the rear wall inside the outer cylinder 2 before entering the condensation chamber from the return air inlet 23, thereby improving the condensation efficiency and drying efficiency.

[0076] It should be noted that the condensate in the second water inlet pipe 26 can flow from top to bottom along the guide strip 27 to most areas of the rear wall inside the outer cylinder 2, thereby increasing the flow path and area of ​​the condensate on the rear wall inside the outer cylinder 2.

[0077] Please see Figures 2 to 5 In some embodiments, a drainage groove 28 is recessed at the bottom of the outer cylinder 2, and a drainage hole 281 is formed on the bottom surface of the drainage groove 28. The condensate flowing into the outer cylinder 2 through the outlet 261 of the second water inlet pipe 26 can flow downward along the condenser plate 3 and collect in the drainage groove 28. At the same time, the condensate in the condensation chamber can also return to the outer cylinder 2 through the return air port 23, and can also collect in the drainage groove 28, and then be discharged from the outer cylinder 2 through the drainage hole 281 or directly discharged to the outside of the housing 1.

[0078] Based on the above technical solution, the embodiments of the present invention have the following advantages and positive effects:

[0079] In the washer-dryer of this embodiment, a condensation groove 22 is recessed on the back of the outer drum 2, and a condensation plate 3 is used to cover the rear end of the condensation groove 22 to form a condensation chamber. The back of the condensation plate 3 does not protrude from the back of the reinforcing rib 21, so it does not occupy the volume of the outer drum 2 and will not increase the size of the outer drum 2, i.e., it will not increase the volume of the outer drum 2. Therefore, the structure of the condensation chamber and the condensation plate 3 will not occupy the internal space of the whole machine, which is conducive to reducing the space size of the machine body and reducing the overall volume. By using the return air vent 23 on the rear wall of the outer drum 2 in conjunction with the condensation groove 22 and the drying air duct, an air drying circulation can be formed between the inner drum, the outer drum 2, and the drying air duct. This allows the hot and humid air generated by drying clothes in the inner drum to enter the outer drum 2 and enter the condensation chamber from the return air vent 23 to make large-area contact with the condensation plate 3. The hot and humid air is cooled and dehumidified by the condensation plate 3, which has a good dehumidification effect. This can improve the heat exchange efficiency, thereby improving the condensation efficiency of the washer-dryer, shortening the drying time, and improving the user experience.

[0080] Although the invention has been described with reference to several typical embodiments, it should be understood that the terminology used is illustrative and exemplary, and not restrictive. Since the invention can be embodied in many forms without departing from the spirit or essence of the invention, it should be understood that the above embodiments are not limited to any of the foregoing details, but should be interpreted broadly within the spirit and scope defined by the appended claims. Therefore, all variations and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.

Claims

1. A washer-dryer combo machine, characterized in that, include: The cabinet forms the outer shell of the washer-dryer combo, and its front surface has a clothing loading port. An outer tub is disposed within the housing and configured to hold washing water, and the front end face of the outer tub has an opening opposite to the clothes loading port; at least a portion of the back of the outer tub has protruding reinforcing ribs, and a portion of the back of the outer tub has recessed condensation grooves, the opening of which faces the back side of the outer tub; a return air vent is provided on the rear wall inside the outer tub, the return air vent connecting the interior of the outer tub and the condensation grooves; An inner tube is disposed within the outer tube, and a clothing processing cavity for accommodating clothing is formed within the inner tube; the inner tube is rotatable within the outer tube. A drying air duct is provided outside the outer cylinder, with one end of the drying air duct connected to the return air inlet and the other end connected to the front end of the inner cylinder; A condensing plate covers the rear end opening of the condensing tank to form a condensing cavity; the back of the condensing plate does not protrude from the back of the reinforcing rib. The outer cylinder has a stepped groove recessed at the peripheral edge of the condensation tank on its back side; the peripheral edge of the condensation plate abuts against the stepped groove, and the back side of the condensation plate is flush with the back side of the reinforcing rib. The hot and humid air generated by drying clothes in the inner drum's clothes processing chamber can enter the outer drum and then enter the condensation chamber through the return air vent. The hot and humid air comes into contact with the condensation plate and exchanges heat, causing the moisture in the air to condense before entering the drying air duct.

2. The washer-dryer combo as described in claim 1, characterized in that, The condenser plate is detachably sealed at the rear end of the condenser tank. Alternatively, the condenser plate may be integrally formed at the rear end of the condenser tank.

3. The washer-dryer combo as described in claim 1, characterized in that, The outer wall of the outer cylinder is provided with a return air channel, one end of which is connected to the top area of ​​the condensation chamber, and the other end of which is connected to the drying air duct. The return air vent is located at the bottom of the condensation chamber.

4. The washer-dryer combo as described in claim 3, characterized in that, The return air inlet is located in the lower part of the rear wall of the outer cylinder; the condensation tank has an arc-shaped structure extending vertically, and the condensation tank is arranged around the axis of the outer cylinder; the shape of the condensation plate is consistent with the shape of the condensation tank.

5. The washer-dryer combo as described in claim 3, characterized in that, The top area of ​​the condensation tank is provided with a water spray pipe, and the water spray pipe is provided with a water spray nozzle. The water spray pipe can spray water toward the condensation plate through the water spray nozzle.

6. The washer-dryer combo as described in claim 5, characterized in that, One end of the water spray pipe is located in the return air duct, and the other end of the water spray pipe extends into the condensation tank. The outer wall of the return air duct is provided with a water inlet pipe, one end of which extends into the return air duct and is connected to the water spray pipe.

7. The washer-dryer combo as described in claim 6, characterized in that, The return air duct includes an integrally connected rear duct and a side duct; The back channel is located on the back side outer wall of the outer cylinder, the side channel is located on the peripheral side outer wall of the outer cylinder, the side channel has an air outlet on its outer wall, and the air outlet is connected to the condensation tank in sequence through the side channel and the back channel. The water inlet pipe is located at the top of the back channel, or at the top of the junction of the side channel and the back channel.

8. The washer-dryer combo as described in claim 5, characterized in that, The condenser plate has protruding guide ribs on its side wall located inside the condensation chamber. The guide ribs are used to guide the condensed water sprayed from the water spray pipe onto the condenser plate.

9. The washer-dryer combo as described in claim 1, characterized in that, The condenser plate is made of metal.

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