Clothes drying apparatus

Abstract

The present disclosure provides a clothes drying device, which relates to the technical field of household appliances, and comprises a cabinet, an outer drum, an inner drum, a drying air duct and a condensing disc arranged in the cabinet. The outer drum is provided with an air return port and a liquid inlet for providing cooling liquid. The inner drum has a drying cavity and is arranged in the outer drum through a rotating shaft. The drying air duct can provide drying gas and forms an air circulation loop with the air return port and the drying cavity. The condensing disc is arranged on the side of the rear end wall of the outer drum facing the inner drum. In the axial direction of the rotating shaft, the condensing disc is arranged at a distance from the rear end wall of the outer drum, so that a gap is formed between the condensing disc and the rear end wall of the outer drum, and the size a of the gap satisfies: 0 < a < 5 mm. In the above technical solution, the gap can be used as a cooling channel, and the cooling liquid can cool the condensing disc when passing through the gap. Moreover, by limiting the size of the gap, the gap can be relatively appropriate and can be filled with an appropriate amount of cooling liquid.

Description

Technical Field

[0001] This disclosure relates to the field of household appliance technology, and in particular to a clothes drying device. Background Technology

[0002] With social progress and technological development, clothes dryers have become common household appliances. As living standards improve at a fast pace, people are using clothes dryers more and more frequently and have higher and higher requirements for their drying performance.

[0003] Currently, condenser dryers on the market use a condenser tray inside the outer drum to improve drying heat exchange efficiency. During drying, dry hot air comes into contact with wet clothes to form humid air. This humid air then comes into contact with the condenser tray, causing its temperature to drop rapidly and condensing the moisture to form relatively dry cool air. This relatively dry cool air can be extracted and reheated to continue drying clothes. During this process, the condenser tray's temperature rises after heat exchange with the humid air, requiring cooling water to lower its temperature and ensure its condensation performance. However, when the condenser tray is mounted on the outer drum, part of its structure is in close contact with the drum. This structure prevents the cooling water from effectively cooling the condenser tray, potentially causing parts of the tray to be exposed to the humid air and affecting its condensation performance. Utility Model Content

[0004] In view of this, the purpose of this disclosure is to provide a clothes drying device to improve the technical problem in the prior art where the condenser plate cannot be effectively cooled, thus affecting the condensation performance.

[0005] To achieve at least one of the above objectives, this disclosure provides the following technical solutions:

[0006] In a first aspect, a clothes drying device is provided, comprising: a housing; an outer cylinder disposed inside the housing, wherein a return air inlet and a liquid inlet are provided on the rear end wall of the outer cylinder, and a drain outlet is provided at the bottom of the outer cylinder; an inner cylinder rotatably disposed inside the outer cylinder via a rotating shaft passing through the rear end wall of the outer cylinder, the inner cylinder forming a drying chamber capable of accommodating clothes, the cavity between the inner cylinder and the outer cylinder being a first cavity, the drying chamber being connected to the return air inlet via the first cavity; and a drying duct disposed outside the outer cylinder, one end of the drying duct being connected to the return air inlet, and the other end of the drying duct being connected to the drying chamber. The drying air duct is configured to supply gas for drying clothes into the drying chamber and to extract gas from the first chamber through the return air vent. A condenser plate is disposed on the rear end wall of the outer cylinder facing the inner cylinder. The axis of the rotating shaft is a first direction. In the first direction, the condenser plate and the rear end wall of the outer cylinder are spaced apart, forming a gap between the condenser plate and the rear end wall of the outer cylinder. The gap is configured to allow coolant flowing out through the liquid inlet to flow in from the top of the gap and enter the gap, and flow out from the bottom of the gap to the drain port. In the first direction, the size of the gap is a, where a satisfies: 0 < a < 5 mm.

[0007] In the above technical solution, the condenser plate and the rear end wall of the outer cylinder are spaced apart in the first direction, creating a gap between them. This gap serves as a channel for coolant to flow from the top to the bottom of the condenser plate. When the coolant passes through this gap, it cools the condenser plate, ensuring its condensation performance. Furthermore, by limiting the size of the gap in the first direction, sufficient space is maintained between the condenser plate and the rear end wall of the outer cylinder to allow for adequate coolant flow and rapid, effective cooling of the condenser plate. Simultaneously, the installation distance between the condenser plate and the rear end wall of the outer cylinder in the first direction is not excessive, resulting in a more compact and rational overall structure.

[0008] It should be noted that in conventional clothes dryers, the surface of the rear end wall of the outer drum facing the condenser plate is roughly conical. This conical surface extends from back to front and gradually tapers from the outer periphery to the center. Since the coolant inlet is located on the rear end wall at the top of the condenser plate, the coolant flowing out through the inlet travels down the rear end wall surface facing the condenser plate through the gap. Therefore, if the value of 'a' exceeds 5 mm, the gap between the condenser plate and the rear end wall of the outer drum will be too large. The coolant flowing into the gap will first travel down the rear end wall surface facing the condenser plate. During this process, due to the large gap, the coolant may not directly contact a portion of the condenser plate surface facing the rear end wall; that is, there is a gap between the coolant flowing within the gap and a portion of the condenser plate. This situation will prevent some areas of the condenser plate from exchanging sufficient heat with the coolant, resulting in ineffective cooling of these areas, potentially leading to them being exposed to hot, humid air and affecting the condenser plate's condensation performance.

[0009] In addition, because the value of 'a' exceeds 5 mm, the gap is too large. During the process of air entering the return air vent in the first cavity, some air will enter the return air vent through the gap. During this process, the air will blow the coolant in the gap, causing the coolant to deviate from the normal flow path. As a result, some areas of the condenser cannot exchange heat with sufficient coolant, and thus some areas of the condenser cannot be effectively cooled, affecting the condensation performance of the condenser.

[0010] In some embodiments, a guide rib is provided within the gap; the guide rib is configured to guide at least a portion of the coolant flowing onto the guide rib as the coolant falls from the top of the gap to the bottom of the gap, so that the at least a portion of the coolant can diffuse along at least one of the second directions; wherein the second direction is perpendicular to the first direction and is also perpendicular to the vertical direction.

[0011] In the above technical solution, by setting guide ribs, coolant can be prevented from flowing out in concentrated amounts from the area directly above and below the inlet within the gap. During the coolant's descent within the gap, the guide ribs guide and diffuse the coolant, dispersing any concentrated coolant along a secondary direction. This allows the coolant to be directed to the entire area of ​​the condenser plate, effectively cooling the entire plate and ensuring its condensation performance. Furthermore, the guide ribs slow down the coolant's descent, allowing sufficient heat exchange time between the coolant and the condenser plate, thus improving the cooling effect. Additionally, the guide ribs lengthen the coolant's flow path within the gap, increasing the heat exchange area between the coolant and the condenser plate, thereby improving both condensation and drying efficiency.

[0012] In some embodiments, the guide rib includes a first guide rib, on which a flow channel is provided from top to bottom; the flow channel is configured to guide at least a portion of the coolant flowing onto the first guide rib, so that the at least a portion of the coolant can flow to the area below the first guide rib.

[0013] In the above technical solution, a flow channel is provided on the first guide rib, and the flow channel runs through the first guide rib from top to bottom, so that some coolant can flow through the flow channel into the area below the first guide rib, so as to avoid the area below the first guide rib from being cooled down by the lack of coolant, which would affect the condensation performance of the condenser plate.

[0014] In some embodiments, the guide rib includes a second guide rib disposed on the rear end wall of the outer cylinder facing the condenser plate; in a first direction, the second guide rib is spaced apart from the condenser plate, such that a first gap is formed between the second guide rib and the condenser plate; the first gap is configured to guide at least a portion of the coolant flowing onto the second guide rib, such that the at least a portion of the coolant can flow to the area below the second guide rib.

[0015] In the above technical solution, the second guide rib is disposed on the rear end wall of the outer cylinder. The second guide rib and the rear end wall of the outer cylinder can be integrally formed, resulting in stronger connection stability and a simpler manufacturing process. Furthermore, the second guide rib and the condenser plate are spaced apart in the first direction, forming a first gap between them. This first gap extends vertically through the second guide rib, allowing some coolant to flow through to the area below the second guide rib. This prevents the area below the second guide rib from lacking coolant cooling, which could affect the condensation performance of the condenser plate. Additionally, the coolant flowing through the first gap can directly cool the condenser plate, increasing the contact area between the coolant and the condenser plate and improving the cooling effect.

[0016] In some embodiments, the guide rib includes a third guide rib disposed on the side of the condenser plate facing the rear end wall of the outer cylinder; in a first direction, the third guide rib is spaced apart from the rear end wall of the outer cylinder, such that a second gap is formed between the third guide rib and the rear end wall of the outer cylinder; the second gap is configured to guide at least a portion of the coolant flowing onto the third guide rib, so that the at least a portion of the coolant can flow to the area below the third guide rib.

[0017] In the above technical solution, the third guide rib is set on the condensing plate, which can be used as a reinforcing rib of the condensing plate to enhance the structural strength of the entire condensing plate. Moreover, the third guide rib is spaced apart from the rear end wall of the outer cylinder, which can form a second gap between them. This second gap runs through the third guide rib from top to bottom, allowing some coolant to flow through the second gap into the area below the third guide rib. This prevents the area below the third guide rib from being uncooled and thus affecting the condensing performance of the condensing plate.

[0018] In some embodiments, the guide rib includes a fourth guide rib, the fourth guide rib having a first end and a second end disposed opposite to each other in a first direction; in the first direction, one of the condensation plate and the rear end wall of the outer cylinder is fixedly connected to the first end, and the other abuts against the second end.

[0019] In the above technical solution, the two ends of the fourth guide rib in the first direction can be fixedly connected or abutted on the opposite side of the rear end wall of the condensing plate and the outer cylinder, so that the fourth guide rib can be supported between the condensing plate and the rear end wall of the outer cylinder. On the one hand, it can ensure that there is a gap between the condensing plate and the rear end wall of the outer cylinder and that there is enough space to allow sufficient coolant to pass through, thereby enhancing the cooling effect on the condensing plate; on the other hand, it can also improve the structural stability after the condensing plate and the rear end wall of the outer cylinder are locked.

[0020] In some embodiments, a screw post is provided in the gap; in a first direction, one end of the screw post is fixed to the rear end wall of the outer cylinder facing the condenser plate, and the other end of the screw post abuts against the condenser plate; the screw post is adapted to be connected to a fastener passing through the condenser plate so that the condenser plate and the screw post are locked.

[0021] In the above technical solution, the screw post is fixed to the rear end wall of the outer cylinder. The screw post and the rear end wall of the outer cylinder can be integrally formed, resulting in stronger connection stability and a simpler manufacturing process. Furthermore, during assembly, the screw post and the condenser plate make abutting contact, eliminating gaps between them. When using fasteners to pass through holes in the condenser plate and lock it onto the screw post, this avoids structural deformation or even tearing at the holes in the condenser plate caused by pressure from the fasteners. Additionally, the screw post can support the condenser plate, maintaining a gap between the condenser plate and the rear end wall of the outer cylinder, allowing sufficient space for adequate coolant flow and enhancing the cooling effect on the condenser plate.

[0022] In some embodiments, a support member is provided within the gap; in a first direction, one end of the support member is fixed to the rear end wall of the outer cylinder facing the condenser plate, and the other end of the support member abuts against the condenser plate; the support member is configured to cooperate with a screw post so that the condenser plate and the rear end wall of the outer cylinder are spaced apart in the first direction.

[0023] In the above technical solution, the support member is fixed to the rear end wall of the outer cylinder. The support member and the rear end wall of the outer cylinder can be integrally formed, resulting in stronger connection stability and a simpler manufacturing process. Furthermore, the two ends of the support member in the first direction can be fixedly connected and abutted against each other on opposite sides of the condenser plate and the rear end wall of the outer cylinder. This allows the support member to be supported between the condenser plate and the rear end wall of the outer cylinder. On the one hand, this ensures a gap and sufficient space between the condenser plate and the rear end wall of the outer cylinder for adequate coolant flow, enhancing the cooling effect on the condenser plate. On the other hand, it also improves the structural stability after the condenser plate and the rear end wall of the outer cylinder are locked together. Additionally, the support member may not have guide ribs, allowing for a more rational shape design and placement of the support member between the condenser plate and the rear end wall of the outer cylinder, thus increasing the support strength for the condenser plate.

[0024] In some embodiments, a pipe is provided on the condenser plate, and the pipe is filled with a heat transfer medium; in a first direction, the pipe protrudes from the condenser plate on the side facing the rear end wall of the outer cylinder.

[0025] In the above technical solution, pipes are installed on the condenser plate, and the pipes are filled with heat transfer fluid. This allows the condenser plate to exchange heat with the humid and hot air and coolant in the inner cavity of the outer cylinder using the heat transfer fluid, thereby improving the heat exchange efficiency of the condenser plate to meet the needs of rapid clothes drying. At the same time, one side of the pipe protrudes towards the rear end wall of the outer cylinder, increasing the contact area between the pipe and the coolant. This improves the cooling efficiency of the coolant on the pipe and the heat transfer fluid inside, ensuring the condensation performance of the condenser plate.

[0026] Secondly, a clothes drying device is also provided, comprising: a housing; an outer cylinder disposed inside the housing, wherein a return air inlet and a liquid inlet are provided on the rear end wall of the outer cylinder, and a drain outlet is provided at the bottom of the outer cylinder; an inner cylinder rotatably disposed inside the outer cylinder via a rotating shaft passing through the rear end wall of the outer cylinder, the inner cylinder forming a drying chamber capable of accommodating clothes, the cavity between the inner cylinder and the outer cylinder being a first cavity, the drying chamber being connected to the return air inlet via the first cavity; and a drying duct disposed outside the outer cylinder, one end of the drying duct being connected to the return air inlet, and the other end of the drying duct being connected to the drying chamber; the drying duct is configured to provide gas for drying clothes into the drying chamber, and through... A return air vent draws gas from the first chamber; a condenser plate is disposed on the rear end wall of the outer cylinder facing the inner cylinder; the axial direction of the rotating shaft is a first direction, in which the condenser plate and the rear end wall of the outer cylinder are spaced apart, forming a gap between the condenser plate and the rear end wall of the outer cylinder; the gap is configured to allow coolant flowing out through the liquid inlet to flow in from the top of the gap and into the gap, and flow out from the bottom of the gap to the drain port; a screw post is disposed in the gap; in the first direction, one end of the screw post is fixed to the rear end wall of the outer cylinder facing the condenser plate, and the other end of the screw post abuts against the condenser plate; the screw post is adapted to be connected to a fastener passing through the condenser plate, so that the condenser plate and the screw post are locked.

[0027] In the above technical solution, the condenser plate and the rear end wall of the outer cylinder are spaced apart in the first direction, so that a gap is formed between them. This gap can serve as a channel for coolant to fall from the top to the bottom of the condenser plate. When the coolant passes through this gap, it will cool the condenser plate to ensure the condensation performance of the condenser plate.

[0028] In the connection method using screw posts and fasteners between the condenser plate and the rear end wall of the outer cylinder, the screw posts are fixed to the rear end wall of the outer cylinder. The screw posts and the rear end wall of the outer cylinder can be integrally formed, resulting in stronger connection stability and a simpler manufacturing process. Furthermore, during assembly, the screw posts and condenser plate make abutting contact, eliminating gaps between them. When using fasteners to pass through holes in the condenser plate and lock it to the screw posts, this avoids structural deformation or even tearing at the holes in the condenser plate caused by pressure from the fasteners. Additionally, the screw posts can support the condenser plate, maintaining a gap between the condenser plate and the rear end wall of the outer cylinder with sufficient space for adequate coolant flow, enhancing the cooling effect on the condenser plate. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a three-dimensional structural diagram of a clothes drying device provided according to some embodiments of the present disclosure;

[0031] Figure 2 This is a three-dimensional structural diagram of a clothes drying device provided according to some embodiments of the present disclosure after removing the housing;

[0032] Figure 3 This is a side view of a clothes drying device provided according to some embodiments of the present disclosure after removing the housing;

[0033] Figure 4 for Figure 3 Schematic diagram of cross section along the AA direction;

[0034] Figure 5 This is a schematic diagram of the internal structure of a drying air duct provided according to some embodiments of the present disclosure;

[0035] Figure 6 This is a three-dimensional structural diagram of an outer cylinder provided according to some embodiments of the present disclosure;

[0036] Figure 7 This is a rear view structural diagram of an outer cylinder provided according to some embodiments of the present disclosure;

[0037] Figure 8 for Figure 7 Schematic diagram of cross section along the BB direction;

[0038] Figure 9 for Figure 8 Enlarged structural diagram of section C;

[0039] Figure 10 This is a schematic front view of an outer cylinder structure provided according to some embodiments of the present disclosure;

[0040] Figure 11 This is a schematic front view of a condenser tray according to some embodiments of the present disclosure;

[0041] Figure 12 This is a schematic diagram showing the positional relationship between a second guide rib and the rear end wall of the condenser and the outer cylinder, according to some embodiments of this disclosure.

[0042] Figure 13 This is a schematic diagram showing the positional relationship between a third guide rib and the rear end wall of the condenser and the outer cylinder, according to some embodiments of this disclosure.

[0043] Figure 14 This is a schematic diagram showing the positional relationship between a fourth guide rib and the rear end wall of the condenser plate and the outer cylinder, according to some embodiments of this disclosure.

[0044] Figure 15 This is a schematic diagram illustrating the positional relationship between a screw post, a condenser plate, and the rear end wall of the outer cylinder, according to some embodiments of this disclosure.

[0045] The attached figures are labeled as follows:

[0046] 1-Box body, 11-Dispensing port, 12-Door body;

[0047] 2-Outer cylinder, 21-Rear end wall, 22-Return air inlet, 23-First cavity, 24-Liquid inlet, 25-Liquid outlet, 26-First guide rib, 261-Flow channel, 27-Second guide rib, 271-First gap, 28-Fourth guide rib, 29-Sealing structure;

[0048] 3-Door seal ring;

[0049] 4-Inner cylinder, 41-Drying chamber, 42-Rotating shaft, 43-Through hole;

[0050] 5-Drying air duct, 51-Heating device, 52-Fan, 53-Air guide pipe;

[0051] 6-Condensation plate, 61-Third guide rib, 611-Second gap, 62-Pipeline;

[0052] 7-Gap;

[0053] 8-Screw post, 81-Fixing element;

[0054] 9-Support component, 91-Flow channel. Detailed Implementation

[0055] The present disclosure will be further described in detail below with reference to the accompanying drawings and embodiments. Through these descriptions, the features and advantages of the present disclosure will become clearer and more apparent.

[0056] Unless otherwise defined, all technical and scientific terms used in this disclosure have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs; the terminology used in this disclosure is for the purpose of describing particular embodiments only and is not intended to limit this disclosure; the terms “comprising” and “having” and any variations thereof in the specification and the foregoing description of this disclosure are intended to cover non-exclusive inclusion.

[0057] The term "embodiment" as used in this disclosure means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this disclosure. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment that is mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described in this disclosure can be combined with other embodiments.

[0058] The specific term "exemplary" used in this disclosure means "serving as an example, embodiment, or illustration." Any embodiment illustrated as "exemplary" is not necessarily to be construed as superior or better than other embodiments. Although various aspects of embodiments are shown in the accompanying drawings, the drawings are not necessarily drawn to scale unless specifically indicated otherwise.

[0059] In the description of this disclosure, the technical terms “first,” “second,” “third,” etc., are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly indicating the number, specific order, or primary or secondary relationship of the indicated technical features.

[0060] In the description of this disclosure, the technical term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects are in an "or" relationship.

[0061] In the description of this disclosure, the technical terms "upper", "lower", "inner", "outer", "front", "back", "left", "right", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship under the working state of this disclosure. They are only for the convenience of describing this disclosure and simplifying the description, and do not indicate or imply that the device or component 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 disclosure.

[0062] In the description of this disclosure, unless otherwise expressly specified and limited, the technical terms "installation," "connection," "joining," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.

[0063] In the description of this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0064] In the description of this disclosure, "multiple" means two or more (including two), unless otherwise expressly and specifically limited.

[0065] In the description of this disclosure, the same reference numerals denote the same components, and for brevity, detailed descriptions of the same components are omitted in different embodiments. It should be understood that the thickness, length, and other dimensions of various components in the embodiments of this disclosure shown in the drawings, as well as the overall thickness, length, and other dimensions of the integrated device, are merely illustrative and should not constitute any limitation on this disclosure.

[0066] As part of the inventive concept of this disclosure, before describing the embodiments of this disclosure, it is necessary to analyze the reasons why the condenser plate cannot be effectively cooled and cooled, thus affecting the condensation performance in related technologies, and obtain the technical solution of the embodiments of this disclosure through reasonable analysis.

[0067] In related technologies, with social progress and technological development, clothes dryers have become common household appliances. As living standards improve rapidly, people are using clothes dryers more frequently and demanding higher performance. Currently, clothes dryers on the market heat air to form dry hot air, which then penetrates the clothes to form humid hot air. This humid hot air is then heated again to remove moisture before penetrating the clothes again, repeating this cycle multiple times to achieve the purpose of drying clothes. To improve drying heat exchange efficiency, a condenser plate is often installed inside the outer drum to remove moisture from the humid hot air. During drying, the dry hot air comes into contact with the wet clothes to form humid hot air. This humid hot air then comes into contact with the condenser plate, causing its temperature to drop rapidly and condensing the moisture to form relatively dry cold air. This relatively dry cold air can be extracted and heated back to dry hot air for further use in drying clothes. During this process, the temperature of the condenser plate rises after heat exchange with the humid hot air, requiring cooling water to lower its temperature and ensure its condensation performance. However, after the condenser is mounted on the outer cylinder, part of the condenser's structure will be in close contact with the outer cylinder. This structure makes it difficult for cooling water to flow into the area between this part of the structure and the outer cylinder, as well as the area below this area. The cooling water cannot effectively cool the condenser, which will result in insufficient cooling of part of the condenser's structure. It may be exposed to hot and humid air, affecting the condenser's condensation performance.

[0068] To address this issue, this disclosure provides a clothes drying device that, by forming a gap between the condenser plate and the rear end wall of the outer cylinder and limiting the size range of the gap, allows an appropriate amount of coolant to pass through the gap and rapidly cool the condenser plate, thereby solving the technical problem in the prior art where the condenser plate cannot be effectively cooled, thus affecting the condensation performance.

[0069] The technical solutions of the embodiments of this disclosure are described in detail below with reference to the accompanying drawings. The technical features involved in the different embodiments of this disclosure described below can be combined with each other as long as they do not conflict with each other.

[0070] Please refer to the above. Figures 1 to 11 , Figure 1 A three-dimensional structural diagram of a clothes drying device is provided, showing a specific construction of the housing. Figures 2 to 4 A schematic diagram of a clothes drying device with the casing removed is provided at different angles; it shows a structural relationship between the outer drum, the inner drum, and the drying air duct. Figure 5 A schematic diagram of the internal structure of a drying air duct is provided; it shows a specific construction of the drying air duct. Figure 6 , Figure 7 and Figure 10 A schematic diagram of the outer cylinder at different angles is provided; it illustrates one specific structure of the outer cylinder. Figure 8 and Figure 9 A partially enlarged schematic diagram of the rear end wall of the outer cylinder is provided, showing an assembly relationship between the condenser plate and the outer cylinder. Figure 11 A schematic diagram of a condenser plate is provided, showing a specific construction of the condenser plate.

[0071] An embodiment of this disclosure provides a clothes drying device, such as... Figure 1 and Figure 2 As shown, the clothes drying equipment includes a housing 1 and an outer cylinder 2, an inner cylinder 4, and a drying air duct 5 disposed inside the housing 1. The inner cylinder 4 is disposed inside the outer cylinder 2 and can hold clothes; the drying air duct 5 is disposed outside the outer cylinder 2 and can supply dry hot air to the inner cylinder 4 to dry the clothes.

[0072] Among them, the drying equipment can be a drum dryer or a drum washer-dryer combo, etc. For ease of description, the following will take a drum washer-dryer combo as an example to explain the structure of the drying equipment in detail.

[0073] In this embodiment, as Figure 1 As shown, the housing 1 forms the outer shell of the drying equipment, which is usually a rectangular hollow structure. The appearance of the housing 1 can be designed as needed and is not limited here. The housing 1 is provided with a receiving cavity, which can provide installation space for components such as the outer cylinder 2, the inner cylinder 4 and the drying air duct 5.

[0074] Furthermore, the housing 1 is provided with a dispensing port 11, which can be approximately circular and located on the front end face of the housing 1. The dispensing port 11 is connected to the receiving cavity.

[0075] In addition, a door 12 is installed on the housing 1. The door 12 is movably connected to the housing 1 near the dispensing port 11 via a hinge shaft to open or close the dispensing port 11.

[0076] In this embodiment, as Figures 1 to 3 , Figure 6 As shown, the outer cylinder 2 is disposed in the receiving cavity of the box body 1. The outer cylinder 2 is a shell structure with an open front end. The opening at the front end of the outer cylinder 2 is the first cylinder opening, which is connected to the inner cavity of the outer cylinder 2 and is disposed opposite to the delivery port 11.

[0077] Specifically, the outer cylinder 2 can be formed by an outer peripheral wall and a rear end wall 21. The front end of the outer peripheral wall is provided with a first cylinder opening, and the rear end of the outer peripheral wall is sealed with a rear end wall 21, so that the rear end wall 21 is arranged opposite to the first cylinder opening.

[0078] Furthermore, a return air inlet 22 is provided on the rear end wall 21; wherein, the return air inlet 22 can be connected to the drying air duct 5, and the gas in the inner cavity of the outer cylinder 2 can be drawn into the drying air duct 5 through the return air inlet 22.

[0079] In addition, a door seal ring 3 is provided between the first cylinder opening and the inlet 11. The door seal ring 3 is roughly in the shape of a ring and can seal the gap between the first cylinder opening and the inlet 11 to prevent water in the outer cylinder 2 from flowing into the receiving cavity of the tank 1.

[0080] In this embodiment, as Figure 4 As shown, the inner cylinder 4 is disposed in the inner cavity of the outer cylinder 2. The inner cylinder 4 is rotatably connected to the rear end wall 21 of the outer cylinder 2 via a rotating shaft 42. The rotating shaft 42 can pass through the rear end wall 21 from front to back. The inner cylinder 4 and the outer cylinder 2 can be arranged coaxially inside and outside.

[0081] Specifically, the inner cylinder 4 is a shell structure with an open front end. A drying chamber 41 is formed inside the inner cylinder 4. The drying chamber 41 can hold clothes. The opening at the front end of the inner cylinder 4 is a second cylinder opening, which is connected to the drying chamber 41 and is positioned opposite to the first cylinder opening. When the door 12 is opened, clothes can be put into the drying chamber 41 through the loading port 11, the first cylinder opening, and the second cylinder opening, or clothes can be taken out of the drying chamber 41.

[0082] Furthermore, the cavity between the inner cylinder 4 and the outer cylinder 2 is the first cavity 23. It should be understood that the first cavity 23 is part of the inner cavity of the outer cylinder 2. A through hole 43 is provided on the side wall of the inner cylinder 4. The through hole 43 allows the drying cavity 41 to be connected to the first cavity 23. Since the return air port 22 is exposed inside the first cavity 23, the drying cavity 41 can be connected to the return air port 22 through the first cavity 23.

[0083] In this embodiment, as Figure 2 , Figure 3 , Figure 5 , Figure 6 As shown, the drying air duct 5 is located outside the outer cylinder 2. One end of the drying air duct 5 is connected to the return air port 22, and the other end of the drying air duct 5 is connected to the drying chamber 41, so that the drying chamber 41, the first chamber 23, the return air port 22 and the drying air duct 5 can form an air drying circulation loop.

[0084] The drying duct 5 is configured to supply gas for drying clothes into the drying chamber 41 and to extract gas from the first chamber 23 through the return air vent 22.

[0085] Specifically, a heating device 51 and a fan 52 are installed inside the drying duct 5. The heating device 51 heats the air inside the drying duct 5, generating high-temperature air. The fan 52 provides airflow, allowing the high-temperature air inside the drying duct 5 to enter the drying chamber 41 of the inner cylinder 4 and dry the clothes inside the drying chamber 41. At the same time, under the action of the fan 52, the air in the first chamber 23 can also be drawn back into the drying duct 5 through the return air port 22.

[0086] Optionally, an air guide pipe 53 is provided through the door seal ring 3. The air guide pipe 53 is connected to one end of the drying air duct 5. The air guide pipe 53 is set towards the second cylinder opening of the inner cylinder 4 and can send the high temperature air in the drying air duct 5 into the drying chamber 41 through the second cylinder opening.

[0087] In this embodiment, as Figure 4 , Figures 6 to 11 As shown, the drying equipment also includes a condenser tray 6, which is disposed on the side of the rear end wall 21 of the outer cylinder 2 facing the inner cylinder 4.

[0088] The condenser plate 6 is used as a condenser to condense the air flowing into the drying duct 5 through the return air inlet 22 in the outer cylinder 2, so as to dehumidify the air flowing through it; that is, the air in the first cavity 23 can exchange heat with the condenser plate 6 to remove the moisture in the air and lower the temperature of the air, and then the air can enter the drying duct 5 through the return air inlet 22.

[0089] Specifically, the high-temperature air from the drying duct 5 enters the drying chamber 41, heating the clothes inside and removing moisture from them, thus forming humid air. This humid air can enter the first chamber 23 through the through hole 43 on the inner cylinder 4 and flow through the condenser plate 6 on the rear end wall 21 of the outer cylinder 2. The humid air has a large contact area with the condenser plate 6 to exchange heat, causing the moisture in the humid air to condense and dehumidify on the condenser plate 6. After condensation and dehumidification by the condenser plate 6, the humid air becomes low-temperature dry air. This low-temperature dry air can then enter the drying duct 5 from the return air vent 22 and be reheated to achieve the drying cycle of the drying equipment. After multiple cycles, the clothes can be dried.

[0090] Alternatively, the condenser plate 6 may be made of metal.

[0091] Specifically, the condenser tray 6 can be made of stainless steel or aluminum alloy. Utilizing the properties of the metal material of the condenser tray 6, its thermal conductivity is much higher than that of plastic, resulting in high heat exchange efficiency. This allows humid and hot air to be cooled first by the metal condenser tray, achieving a better dehumidification effect. This improves the heat exchange efficiency with the air, thereby enhancing the condensation efficiency of the dryer and shortening the drying time.

[0092] Of course, the condenser plate 6 can also be made of other materials with high thermal conductivity.

[0093] Optionally, the structure and curvature of the condenser plate 6 and the rear end wall 21 of the outer cylinder 2 can be kept consistent, so that the condenser plate 6 occupies less space inside the outer cylinder 2.

[0094] Specifically, the condenser plate 6 can be roughly in the shape of a circular or semi-circular annular plate, and the condenser plate 6 can be laid on the rear end wall 21 of the outer cylinder 2, such as... Figure 6 and Figure 11 As shown.

[0095] It should be noted that during the dehumidification of the air in the inner cavity of the outer cylinder 2 by the condenser plate 6, the temperature of the condenser plate 6 rises after exchanging heat with the humid and hot air. In order to ensure the condensation efficiency of the condenser plate 6, cooling measures need to be taken for the condenser plate 6.

[0096] Therefore, an inlet 24 can be provided on the rear wall 21 of the outer cylinder 2, and an outlet 25 can be provided at the bottom of the outer cylinder 2, such as... Figure 10 As shown. The inlet 24 can be connected to the inlet pipe to guide the coolant delivered by the inlet pipe into the inner cavity of the outer cylinder 2, and exchange heat with the condenser 6 to cool the condenser 6. After the coolant flows through the condenser and is cooled, it can be discharged through the drain port 25.

[0097] Optionally, the liquid inlet 24 can be located at the top of the condenser plate 6, so that the coolant can fall from the top of the condenser plate 6 to the bottom of the condenser plate 6 by its own gravity. During this process, there is a larger heat exchange area between the coolant and the condenser plate 6, which can improve the condensation efficiency of the condenser plate 6.

[0098] Alternatively, the coolant may be cold water or other pure liquid or mixture suitable for cooling the condenser plate 6, without limitation.

[0099] It should be noted that the coolant can also directly exchange heat with the hot and humid air inside the outer cylinder 2, condensing and dehumidifying the hot and humid air.

[0100] Furthermore, such as Figure 4 , Figures 7 to 9 As shown, with the axial direction of the rotating shaft 42 as the first direction, the condensing plate 6 and the rear end wall 21 of the outer cylinder 2 are spaced apart in the first direction, so that a gap 7 is formed between the condensing plate 6 and the rear end wall 21 of the outer cylinder 2.

[0101] The gap 7 is configured to allow coolant flowing out through the inlet 24 to flow in from the top of the gap 7 and into the gap 7, and then flow out from the bottom of the gap 7 to the outlet 25, through which the coolant can be discharged outside the drying equipment.

[0102] With the above structural design, the gap 7 can serve as a channel for the coolant to fall from the top to the bottom of the condenser plate 6. When the coolant passes through the gap 7, the coolant contacts the surface of the condenser plate 6 facing the rear end wall 21 of the outer cylinder 2 and exchanges heat to cool the condenser plate 6, thereby improving the heat exchange efficiency of the condenser plate 6 and ensuring the condensation performance of the condenser plate 6.

[0103] It should be noted that the coolant flowing out of the inlet 24 can also flow on the surface of the condenser plate 6 away from the rear end wall 21 of the outer cylinder 2, and exchange heat with the surface to cool the condenser plate 6.

[0104] Furthermore, in the first direction, the size of the gap 7 between the condenser plate 6 and the rear end wall 21 of the outer cylinder 2 is a, where a satisfies: 0 < a < 5 mm.

[0105] The gap 7 between the condenser plate 6 and the rear end wall 21 of the outer cylinder 2 can be constant; that is, the size a of all gaps 7 between the condenser plate 6 and the rear end wall 21 of the outer cylinder 2 is the same. In this case, the size a of the gap 7 can be a fixed value; for example, a can be 0.5 mm, 1 mm, 1.5 mm, 2 mm, 3 mm, 4 mm, 4.5 mm, etc.

[0106] The gap 7 between the condenser plate 6 and the rear end wall 21 of the outer cylinder 2 can also be varied; that is, at least two gaps 7 have different dimensions a. In this case, the dimension a of the gap 7 can be a range value or multiple discontinuous values; for example, a can be a range of 0.5 mm to 2 mm, or a can be a range of 1 mm to 3 mm, or a can be a range of 4 mm to 4.5 mm, or a can simultaneously include the discontinuous values ​​of 0.5 mm, 1 mm, 1.5 mm, 2 mm, 3 mm, 4 mm, and 4.5 mm.

[0107] Optionally, the size a of the gap 7 satisfies: 1 mm < a < 5 mm.

[0108] By adopting the above structural design, the range of the dimension 'a' of the gap 7 in the first direction is limited. Specifically, by limiting 'a' to 0, a gap 7 is ensured between the condenser plate 6 and the rear end wall 21 of the outer cylinder 2, preventing the condenser plate 6 from being tightly pressed against the rear end wall 21 of the outer cylinder 2. This avoids the problem of coolant being unable to enter the area where the condenser plate 6 and the rear end wall 21 of the outer cylinder 2 are in contact, thus preventing the coolant from effectively cooling the condenser plate 6. Furthermore, by limiting 'a' to 5 mm when 'a' is greater than 0, sufficient space is left between the condenser plate 6 and the rear end wall 21 of the outer cylinder 2 to allow an appropriate amount of coolant to pass through and to quickly and effectively cool the condenser plate 6, improving its condensation efficiency. Simultaneously, by limiting 'a' to 5 mm, the installation distance between the condenser plate 6 and the rear end wall 21 of the outer cylinder 2 in the first direction is also ensured to be not too large, saving installation space in the first direction and making the overall structure of the equipment more compact and reasonable.

[0109] It should be noted that in conventional clothes drying equipment, the surface of the rear end wall 21 of the outer cylinder 2 facing the condenser plate 6 is roughly conical. This conical surface extends from back to front and gradually narrows from the outer periphery to the center. At the same time, since the coolant inlet 24 is located on the rear end wall 21 and at the top of the condenser plate 6, the coolant flowing out through the inlet 24 will pass through the gap 7 from top to bottom along the surface of the rear end wall 21 facing the condenser plate 6. Therefore, if the value of 'a' exceeds 5 mm, the gap 7 formed between the condenser plate 6 and the rear end wall 21 of the outer cylinder 2 will be too large. The coolant flowing into the gap 7 will first flow along the rear end wall 21 towards the surface of the condenser plate 6. During this process, due to the large gap 7, the coolant may not be in direct contact with a part of the surface of the condenser plate 6 facing the rear end wall 21. That is, there is a gap between the coolant flowing in the gap 7 and a part of the condenser plate 6. This situation will cause a part of the condenser plate 6 to not be able to exchange heat with the coolant sufficiently, so that a part of the condenser plate 6 cannot be effectively cooled and may be baked by hot and humid air, thus affecting the condensation performance of the condenser plate 6.

[0110] In addition, because the value of 'a' exceeds 5 mm, the gap 7 becomes too large. During the process of air entering the return air vent 22 from the first cavity 23, some air will enter the return air vent 22 through the gap 7. During this process, the air will blow the coolant in the gap 7, causing the coolant to deviate from the normal flow path. As a result, some areas of the condenser plate 6 cannot exchange heat with sufficient coolant, thus preventing some areas of the condenser plate 6 from being effectively cooled and affecting the condensation performance of the condenser plate 6.

[0111] Please refer to the above. Figure 10 , Figures 12 to 14 , Figure 10 A schematic diagram of the main structure of an outer cylinder is provided, showing one arrangement of the first guide rib on the rear end wall of the outer cylinder. Figures 12 to 14 Different layout relationships of the flow guides within the gap are provided; one structural relationship of the second, third, and fourth flow guides between the condenser plate and the rear end wall of the outer cylinder is shown.

[0112] In some embodiments, such as Figure 10 As shown, a guide rib is provided within the gap 7. The guide rib is configured to guide at least a portion of the coolant flowing onto the guide rib as the coolant falls from the top to the bottom of the gap 7, allowing the coolant to diffuse along at least one of the second directions; wherein the second direction is perpendicular to the first direction and is also perpendicular to the vertical direction.

[0113] It should be understood that the second direction has two opposing directions. The guide ribs can guide the coolant to diffuse in one of the two directions, or they can guide the coolant to diffuse in both of the two directions simultaneously. Furthermore, coolant diffusion in at least one of the two directions means that, under the combined action of gravity and the guide ribs, the coolant can flow in at least one of the two directions, or it can flow in the direction of the resultant force of gravity and at least one of the two directions (which can be understood as a downward tilt).

[0114] It should be noted that enabling at least a portion of the coolant to diffuse along at least one of the second directions can include the following situations:

[0115] 1. The inlet 24 is located at the top center of the condenser plate 6. The coolant flows from the inlet 24 into the middle area of ​​the upper part of the gap 7. Under the guidance of the guide ribs, the coolant can diffuse in two directions in the second direction, so that part of the coolant entering the middle area of ​​the upper part of the gap 7 is diverted to the edge areas on the left and right sides of the gap 7.

[0116] 2. The liquid inlet 24 is located on the top left side of the condenser plate 6. The coolant flows from the liquid inlet 24 into the left area of ​​the upper part of the gap 7. Under the guidance of the guide rib, the coolant can diffuse in one of the two directions, so that part of the coolant entering the left area of ​​the upper part of the gap 7 flows to the right and into the middle area and the right edge area of ​​the gap 7.

[0117] 3. The liquid inlet 24 is located on the top right side of the condenser plate 6. The coolant flows from the liquid inlet 24 into the upper right side area of ​​the gap 7. Under the guidance of the guide ribs, the coolant can diffuse in one of the second directions, causing part of the coolant entering the upper right side area of ​​the gap 7 to flow to the left and into the middle area and left edge area of ​​the gap 7.

[0118] By adopting the above structural design and setting guide ribs, the coolant can be prevented from flowing out of the area opposite to the liquid inlet 24 in the gap 7. During the process of the coolant falling in the gap 7, the guide ribs can be used to guide and diffuse the coolant, and disperse the relatively concentrated coolant entering the gap 7 along the second direction, so that the coolant can be guided to the entire area of ​​the condenser plate 6, so as to effectively cool and reduce the temperature of the entire condenser plate 6, thereby ensuring the condensation performance of the condenser plate 6.

[0119] Furthermore, the guide ribs can delay the time of coolant descent, allowing sufficient heat exchange time between the coolant and the condenser plate 6, thereby improving the cooling effect on the condenser plate 6.

[0120] In addition, guided by the guide ribs, the flow path of the coolant in the gap 7 becomes longer, which can increase the heat exchange area between the coolant and the condenser plate 6, thereby improving the condensation efficiency and drying efficiency.

[0121] Optionally, the guide ribs can be arc-shaped, with the apex of the arc facing upwards. The coolant flowing onto the guide ribs can then flow along the arc shape towards both ends of the guide ribs, further slowing down the flow rate and improving heat exchange efficiency. Furthermore, no coolant residue will remain on the guide ribs when the inlet pipe is closed after drying.

[0122] Alternatively, the guide ribs can be a straight structure extending laterally, a straight structure arranged at an angle, or a structure with arbitrary continuous bends.

[0123] Optionally, there may be multiple guide ribs, which may be arranged in a staggered manner in the vertical direction, and gaps for coolant flow may be formed between adjacent guide ribs.

[0124] The above structural design allows the upper guide rib to direct the coolant to the lower guide rib, thus expanding the coolant's diffusion range along the second direction. At the same time, the lower guide rib can also direct the coolant to the area below the upper guide rib, preventing the area below the guide rib from being cooled by coolant and affecting the condensation performance of the condenser plate 6.

[0125] Furthermore, such as Figure 10 As shown, the guide rib includes a first guide rib 26, and a flow channel 261 is provided through the first guide rib 26 from top to bottom; the flow channel 261 is configured to guide at least a portion of the coolant flowing to the first guide rib 26, so that the at least a portion of the coolant can flow to the area below the first guide rib 26.

[0126] Optionally, the flow channel 261 can be a hole, or the flow channel 261 can also be a notch that divides the first guide rib 26 into two parts.

[0127] Optionally, there may be multiple flow channels 261, which may be arranged at equal or unequal intervals on the first guide rib 26.

[0128] With the above structural design, a flow channel 261 is provided on the first guide rib 26, and the size and number of the flow channel 261 in the second direction are reasonably set so that an appropriate amount of coolant can flow into the area below the first guide rib 26 through the flow channel 261, so as to avoid the area below the first guide rib 26 from being cooled down by the lack of coolant, which would affect the condensation performance of the condenser plate 6.

[0129] Furthermore, such as Figure 12 As shown, the guide rib includes a second guide rib 27, which is disposed on the side of the rear end wall 21 of the outer cylinder 2 facing the condenser plate 6.

[0130] With the above structural design, the second guide rib 27 is set on the rear end wall 21 of the outer cylinder 2. The second guide rib 27 and the rear end wall 21 of the outer cylinder 2 can be integrally formed, which makes the connection between the two more stable and the manufacturing process simple.

[0131] In the first direction, the second guide rib 27 is spaced apart from the condenser plate 6, so that a first gap 271 is formed between the second guide rib 27 and the condenser plate 6; the first gap 271 is configured to guide at least a portion of the coolant flowing to the second guide rib 27, so that the at least a portion of the coolant can flow to the area below the second guide rib 27.

[0132] With the above structural design, the second guide rib 27 and the condenser plate 6 are spaced apart in the first direction, so that a first gap 271 is formed between them. The first gap 271 extends through the second guide rib 27 from top to bottom. By reasonably setting the size of the first gap 271 in the first direction, an appropriate amount of coolant can flow through the first gap 271 into the area below the second guide rib 27, so as to avoid the area below the second guide rib 27 from being cooled down by the lack of coolant, which would affect the condensation performance of the condenser plate 6.

[0133] Moreover, the coolant passing through the first gap 271 can directly cool the condenser plate 6, increasing the contact area between the coolant and the condenser plate 6, which can improve the heat exchange efficiency and cooling effect of the condenser plate 6.

[0134] It should be noted that only the second guide rib 27 may be provided in the gap 7 to guide the flow of coolant; or, the second guide rib 27 and the first guide rib 26 may be provided together in the gap 7 to guide the flow of coolant together.

[0135] Of course, the second guide rib 27 can also be combined with the first guide rib 26, that is, a flow channel 261 is provided on the second guide rib 27 to increase the way coolant enters the area below the second guide rib 27, so that the coolant flow is sufficient and can have a larger contact area with the condenser plate 6.

[0136] Furthermore, such as Figure 13 As shown, the guide ribs include a third guide rib 61, which is disposed on the side of the condenser plate 6 facing the rear end wall 21 of the outer cylinder 2.

[0137] With the above structural design, the third guide rib 61 is set on the condensing plate 6, which can be used as a reinforcing rib of the condensing plate 6 to enhance the structural strength of the entire condensing plate 6.

[0138] In the first direction, the third guide rib 61 is spaced apart from the rear end wall 21 of the outer cylinder 2, so that a second gap 611 is formed between the third guide rib 61 and the rear end wall 21 of the outer cylinder 2; the second gap 611 is configured to guide at least a portion of the coolant flowing to the third guide rib 61, so that the at least a portion of the coolant can flow to the bottom of the third guide rib 61.

[0139] With the above structural design, the third guide rib 61 and the rear end wall 21 of the outer cylinder 2 are spaced apart, so that a second gap 611 is formed between them. The second gap 611 extends through the third guide rib 61 from top to bottom. By reasonably setting the size of the second gap 611 in the first direction, an appropriate amount of coolant can flow through the second gap 611 into the area below the third guide rib 61, so as to avoid the area below the third guide rib 61 from being cooled down by the lack of coolant, which would affect the condensation performance of the condenser plate 6.

[0140] It should be noted that only the third guide rib 61 may be provided in the gap 7 to guide the flow of coolant; or, at least two of the third guide rib 61, the second guide rib 27 and the first guide rib 26 may be provided in the gap 7 together to guide the flow of coolant.

[0141] Of course, the third guide rib 61 can also be combined with the first guide rib 26, that is, a flow channel 261 is provided on the third guide rib 61 to increase the way coolant enters the area below the third guide rib 61, so that the coolant flow is sufficient and can have a larger contact area with the condenser plate 6.

[0142] Furthermore, such as Figure 14 As shown, the guide rib includes a fourth guide rib 28, which has a first end and a second end that are disposed opposite to each other in a first direction; in the first direction, one of the condensation plate 6 and the rear end wall 21 of the outer cylinder 2 is fixedly connected to the first end, and the other abuts against the second end.

[0143] With the above structural design, the two ends of the fourth guide rib 28 in the first direction can be fixedly connected or abutted against each other on the opposite sides of the rear end wall 21 of the condensing plate 6 and the outer cylinder 2, so that the fourth guide rib 28 can be supported between the condensing plate 6 and the rear end wall 21 of the outer cylinder 2. This structural design, on the one hand, ensures that a gap 7 is maintained between the condensing plate 6 and the rear end wall 21 of the outer cylinder 2, and that there is enough space for an appropriate amount of coolant to pass through, thereby enhancing the condensation efficiency and cooling effect of the condensing plate 6; on the other hand, it can also improve the structural stability after the condensing plate 6 and the rear end wall 21 of the outer cylinder 2 are locked together.

[0144] It should be noted that only the fourth guide rib 28 may be provided in the gap 7 to guide the flow of coolant; or, at least two of the fourth guide rib 28, the third guide rib 61, the second guide rib 27 and the first guide rib 26 may be provided together in the gap 7 to guide the flow of coolant together.

[0145] Of course, the fourth guide rib 28 can also be combined with the first guide rib 26, that is, a flow channel 261 is provided on the fourth guide rib 28, so that an appropriate amount of coolant can enter the area below the fourth guide rib 28 through the flow channel 261, so as to avoid the area below the fourth guide rib 28 from being cooled down by the lack of coolant, which would affect the condensation performance of the condenser plate 6.

[0146] refer to Figure 10 , Figure 10 A front view structural schematic diagram of an outer cylinder is provided, showing one layout position of the sealing structure on the rear end wall of the outer cylinder.

[0147] In some embodiments, such as Figure 10 As shown, a sealing structure 29 is provided in the gap 7. The sealing structure 29 is located above the outer periphery of the rotating shaft 42 and at the edge of the return air inlet 22.

[0148] Specifically, the sealing structure 29 can be composed of a matching sealing strip and a sealing groove; wherein, one of the sealing strip and the sealing groove is set on the rear end wall 21 of the outer cylinder 2, and the other is set on the condenser plate 6. When the condenser plate 6 is assembled on the rear end wall 21 of the outer cylinder 2, the sealing strip can be inserted into the sealing groove to form a seal, so as to prevent the coolant flowing in the gap 7 from wetting the rotating shaft 42 or entering the return air port 22 and affecting the humidity of the dehumidified air.

[0149] Please refer to the above. Figure 10 and Figure 15 , Figure 10 A front view structural schematic diagram of an outer cylinder is provided, showing one arrangement of the screw posts on the rear end wall of the outer cylinder. Figure 15A schematic diagram of a structure is provided, showing a screw post installed between the condenser plate and the rear end wall of the outer cylinder; the positional relationship between the screw post and the condenser plate and the rear end wall of the outer cylinder is shown.

[0150] In some embodiments, such as Figure 10 and Figure 15 As shown, a screw post 8 is provided in the gap 7. The screw post 8 is fixed to the rear end wall 21 of the outer cylinder 2 facing the condenser plate 6. The screw post 8 and the fastener 81 can be used to fix the condenser plate 6 to the rear end wall 21 of the outer cylinder 2.

[0151] With the above structural design, the screw post 8 is fixed to the rear end wall 21 of the outer cylinder 2. The screw post 8 and the rear end wall 21 of the outer cylinder 2 can be integrally formed, which makes the connection between the two more stable and the manufacturing process simple. In addition, the screw post 8 can also be used to support the condenser plate 6, so that there is a gap 7 between the condenser plate 6 and the rear end wall 21 of the outer cylinder 2 and sufficient space is provided for an appropriate amount of coolant to pass through, thereby enhancing the condensation efficiency and cooling effect of the condenser plate 6.

[0152] For example, one specific way in which the screw post 8 is disposed between the condenser plate 6 and the rear end wall 21 of the outer cylinder 2 is as follows: in a first direction, one end of the screw post 8 is fixed to the side of the rear end wall 21 of the outer cylinder 2 facing the condenser plate 6, and the other end of the screw post 8 abuts against the condenser plate 6; the screw post 8 is adapted to be connected to the fastener 81 passing through the condenser plate 6 so that the condenser plate 6 and the screw post 8 are locked together, thereby fixing the condenser plate 6 to the rear end wall 21 of the outer cylinder 2.

[0153] The fastener 81 can be a screw, which includes a screw shank and a screw head. The screw shank has external threads on its outer periphery that are adapted to the threaded hole on the screw post 8, and the screw head is fixed to one end of the screw shank. Correspondingly, the condenser plate 6 has a hole that allows the screw threaded shank to pass through, but not the screw head. During installation, the screw threaded shank passes through the hole in the condenser plate 6 and connects to the threaded hole on the screw post 8, while the screw head presses the structure at the hole in the condenser plate 6 against the end of the screw post 8 to lock the condenser plate 6 and the screw post 8, thereby fixing the condenser plate 6 to the rear end wall 21 of the outer cylinder 2.

[0154] It should be noted that when the other end of the screw post 8 abuts against the condenser plate 6, it means that the screw post 8 and the condenser plate 6 are in surface contact; there is no gap between the screw post 8 and the condenser plate 6 after they abut against each other.

[0155] With the above structural design, during assembly, the screw post 8 and the condenser plate 6 make abutting contact, so that there is no gap between them. When the fastener 81 passes through the hole on the condenser plate 6 and locks the condenser plate 6 on the screw post 8, the structural deformation or even tearing of the condenser plate 6 at the hole can be avoided due to the pressure of the fastener 81 causing the structure at the hole on the condenser plate 6 to move toward the screw post 8.

[0156] Optionally, there may be multiple screw posts 8, which are distributed between the condenser plate 6 and the rear end wall 21 of the outer cylinder 2. Correspondingly, the number of fasteners 81 is consistent with the number of screw posts 8; the number of holes opened on the condenser plate 6 is consistent with the number of screw posts 8, and the positions of the holes correspond one-to-one with the distribution positions of the screw posts 8.

[0157] refer to Figure 10 , Figure 10 A front view structural schematic diagram of an outer cylinder is provided, showing one arrangement of the support member on the rear end wall of the outer cylinder.

[0158] In some embodiments, such as Figure 10 As shown, a support member 9 is provided in the gap 7. The support member 9 is configured to cooperate with the screw post 8 so that the condenser plate 6 and the rear end wall 21 of the outer cylinder 2 are spaced apart in the first direction.

[0159] Specifically, in the first direction, one end of the support member 9 is fixed to the rear end wall 21 of the outer cylinder 2 facing the condenser plate 6, and the other end of the support member 9 abuts against the condenser plate 6.

[0160] With the above structural design, the support member 9 is fixed to the rear end wall 21 of the outer cylinder 2. The support member 9 and the rear end wall 21 of the outer cylinder 2 can be integrally formed, which makes the connection between the two more stable and the manufacturing process simple.

[0161] Furthermore, the two ends of the support member 9 in the first direction can be fixedly connected and abutted on the opposite sides of the condenser plate 6 and the rear end wall 21 of the outer cylinder 2, so that the support member 9 can be supported between the condenser plate 6 and the rear end wall 21 of the outer cylinder 2. On the one hand, it can ensure that there is a gap 7 between the condenser plate 6 and the rear end wall 21 of the outer cylinder 2 and that there is enough space for an appropriate amount of coolant to pass through, thereby enhancing the cooling effect on the condenser plate 6. On the other hand, it can also improve the structural stability after the condenser plate 6 and the rear end wall 21 of the outer cylinder 2 are locked.

[0162] It should be noted that the main difference between the support member 9 and the fourth guide rib 28 is that the support member 9 may not have the function of a guide rib, that is, it does not need to guide the coolant. Therefore, there are no more restrictions on the shape design of the support member 9 and the position layout of the support member 9 between the condenser plate 6 and the rear end wall 21 of the outer cylinder 2. This allows the support member 9 to be designed more reasonably and can further improve the support strength of the condenser plate 6.

[0163] For example, a specific structure of the support member 9 may be: the support member 9 is a strip structure, the plane perpendicular to the first direction is the projection plane, the orthographic projection of the strip structure on the projection plane may be an arc shape or a straight line shape, and the strip structure may also be provided with a flow channel 91, through which coolant can pass.

[0164] With the above structural design, the support member 9 is designed as a strip structure, and a flow channel 91 is set on the strip structure. This allows some coolant to pass through the support member 9 through the flow channel 91, thus preventing the support member 9 from obstructing the diffusion of coolant and causing some areas of the condenser plate 6 to lack cooling, thereby affecting the condensation performance of the condenser plate 6. At the same time, the flow channel 91 can also guide the flow direction of the coolant, causing the coolant to diffuse directionally towards some areas of the condenser plate 6.

[0165] Of course, the support member 9 can also be set into other structural shapes; for example, the orthographic projection of the support member 9 on the projection plane can be square, circular, elliptical, etc., which is not limited here.

[0166] Please refer to the above. Figures 12 to 15 , Figures 12 to 15 A schematic diagram is provided showing the structure with different guide ribs and screw posts between the rear end walls of the condenser plate and the outer cylinder; it shows the structural layout with pipelines installed on the condenser plate.

[0167] In some embodiments, the condenser plate 6 is provided with a pipe 62, and the pipe 62 is filled with a heat transfer medium.

[0168] Optionally, the heat transfer medium is a medium that can rapidly transfer heat; for example, the heat transfer medium can be a gas-liquid mixed fluoride, etc.

[0169] With the above structural design, a pipe 62 is set on the condenser plate 6, and the pipe 62 is filled with a heat transfer medium, so that the condenser plate 6 can exchange heat with the humid and hot air and coolant in the inner cavity of the outer cylinder 2 using the heat transfer medium, which can improve the heat exchange efficiency of the condenser plate 6 to meet the needs of rapid clothes drying.

[0170] Furthermore, in the first direction, the pipe 62 protrudes from the condenser plate 6 on the side facing the rear end wall 21 of the outer cylinder 2.

[0171] With the above structural design, one side of the pipe 62 protrudes towards the rear end wall 21 of the outer cylinder 2, which increases the contact area between the pipe 62 and the coolant, thereby improving the cooling efficiency of the coolant on the pipe 62 and its internal heat transfer medium, and ensuring the condensation performance of the condenser plate 6.

[0172] It should be noted that the condenser plate 6 has a pipe 62 protruding towards the rear end wall 21 of the outer cylinder 2. The protruding part of the pipe 62 will compress the space of the gap 7 in the first direction, making the gap 7 narrower. The pipe 62 may even come into contact with the rear end wall 21 of the outer cylinder 2, making it difficult for coolant to enter the area below the pipe 62 and effectively cool that area. Therefore, it is necessary to limit the size of the gap 7 between the condenser plate 6 and the rear end wall 21 of the outer cylinder 2 in the first direction to ensure that an appropriate amount of coolant can pass through the gap 7 and fill the entire gap 7, allowing the coolant to cool the entire condenser plate 6 and ensuring the condensation performance of the condenser plate 6.

[0173] Of course, in the first direction, the side of pipe 62 facing the rear end of inner cylinder 4 can also protrude from condenser plate 6. This structural design can increase the heat exchange area between pipe 62 and the humid air in the inner cavity of outer cylinder 2, improve the heat exchange efficiency between pipe 62 and its internal heat transfer medium and humid air, thereby improving the drying efficiency of the clothes drying equipment and meeting the needs of rapid clothes drying.

[0174] Please refer to the above. Figures 1 to 4 as well as Figure 10 , Figure 15 , Figure 1 A three-dimensional structural diagram of a clothes drying device is provided, showing a specific construction of the housing. Figures 2 to 4 A schematic diagram of a clothes drying device with the casing removed is provided at different angles; it shows a structural relationship between the outer drum, the inner drum, and the drying air duct. Figure 10 A front view structural schematic diagram of an outer cylinder is provided, showing one arrangement of the screw posts on the rear end wall of the outer cylinder. Figure 15 A schematic diagram of a structure is provided, showing a screw post installed between the condenser plate and the rear end wall of the outer cylinder; the positional relationship between the screw post and the condenser plate and the rear end wall of the outer cylinder is shown.

[0175] This disclosure also provides a clothes drying device, such as... Figures 1 to 4 As shown, the clothes drying equipment includes a housing 1 and an outer cylinder 2, an inner cylinder 4, and a drying air duct 5 disposed inside the housing 1. The inner cylinder 4 is disposed inside the outer cylinder 2 and can hold clothes; the drying air duct 5 is disposed outside the outer cylinder 2 and can supply dry hot air to the inner cylinder 4 to dry the clothes.

[0176] Specifically, the outer cylinder 2 has a return air inlet 22 and a liquid inlet 24 on its rear end wall 21, and a drain outlet 25 at its bottom. The inner cylinder 4 is rotatably disposed inside the outer cylinder 2 via a rotating shaft 42 that passes through the rear end wall 21 of the outer cylinder 2. The inner cylinder has a drying chamber 41 that can accommodate clothes. The cavity between the inner cylinder 4 and the outer cylinder 2 is a first cavity 23. The drying chamber 41 is connected to the return air inlet 22 via the first cavity 23. The drying duct 5 is disposed outside the outer cylinder 2. One end of the drying duct 5 is connected to the return air inlet 22, and the other end of the drying duct 5 is connected to the drying chamber 41. The drying duct 5 is configured to provide gas for drying clothes into the drying chamber 41 and to extract gas from the first cavity 23 through the return air inlet 22.

[0177] The dryer also includes a condenser tray 6, such as Figure 4 As shown, the condenser plate 6 is disposed on the side of the rear end wall 21 of the outer cylinder 2 facing the inner cylinder 4; the axial direction of the rotating shaft 42 is the first direction, in the first direction, the condenser plate 6 and the rear end wall 21 of the outer cylinder 2 are spaced apart, so that a gap 7 is formed between the condenser plate 6 and the rear end wall 21 of the outer cylinder 2; the gap 7 is configured to allow the coolant flowing out through the liquid inlet 24 to flow in from the top of the gap 7 and enter into the gap 7, and flow out from the bottom of the gap 7 to the drain port 25, through which the coolant can be discharged to the outside of the drying equipment.

[0178] With the above structural design, the gap 7 can serve as a channel for the coolant to fall from the top to the bottom of the condenser plate 6. When the coolant passes through the gap 7, the coolant contacts the surface of the condenser plate 6 facing the rear end wall 21 of the outer cylinder 2 and exchanges heat to cool the condenser plate 6, thereby improving the heat exchange efficiency of the condenser plate 6 and ensuring the condensation performance of the condenser plate 6.

[0179] It should be noted that the coolant flowing out of the inlet 24 can also flow on the surface of the condenser plate 6 away from the rear end wall 21 of the outer cylinder 2, and exchange heat with the surface to cool the condenser plate 6.

[0180] Furthermore, such as Figure 10 and Figure 15 As shown, a screw post 8 is provided in the gap 7. The screw post 8 is fixed to the rear end wall 21 of the outer cylinder 2 facing the condenser plate 6. The screw post 8 and the fastener 81 can be used to fix the condenser plate 6 to the rear end wall 21 of the outer cylinder 2.

[0181] With the above structural design, the screw post 8 is fixed to the rear end wall 21 of the outer cylinder 2. The screw post 8 and the rear end wall 21 of the outer cylinder 2 can be integrally formed, which makes the connection between the two more stable and the manufacturing process simple.

[0182] In addition, the condenser plate 6 can be supported by the screw column 8, so that there is a gap 7 between the condenser plate 6 and the rear end wall 21 of the outer cylinder 2 and enough space to allow an appropriate amount of coolant to pass through, thereby enhancing the condensation efficiency and cooling effect of the condenser plate 6.

[0183] For example, one specific way in which the screw post 8 is disposed between the condenser plate 6 and the rear end wall 21 of the outer cylinder 2 is as follows: in a first direction, one end of the screw post 8 is fixed to the side of the rear end wall 21 of the outer cylinder 2 facing the condenser plate 6, and the other end of the screw post 8 abuts against the condenser plate 6; the screw post 8 is adapted to be connected to the fastener 81 passing through the condenser plate 6 so that the condenser plate 6 and the screw post 8 are locked together, thereby fixing the condenser plate 6 to the rear end wall 21 of the outer cylinder 2.

[0184] The fastener 81 can be a screw, which includes a screw shank and a screw head. The screw shank has external threads on its outer periphery that are adapted to the threaded hole on the screw post 8, and the screw head is fixed to one end of the screw shank. Correspondingly, the condenser plate 6 has a hole that allows the screw threaded shank to pass through, but not the screw head. During installation, the screw threaded shank passes through the hole in the condenser plate 6 and connects to the threaded hole on the screw post 8, while the screw head presses the structure at the hole in the condenser plate 6 against the end of the screw post 8 to lock the condenser plate 6 and the screw post 8, thereby fixing the condenser plate 6 to the rear end wall 21 of the outer cylinder 2.

[0185] It should be noted that when the other end of the screw post 8 abuts against the condenser plate 6, it means that the screw post 8 and the condenser plate 6 are in surface contact; there is no gap between the screw post 8 and the condenser plate 6 after they abut against each other.

[0186] With the above structural design, during assembly, the screw post 8 and the condenser plate 6 make abutting contact, so that there is no gap between them. When the fastener 81 passes through the hole on the condenser plate 6 and locks the condenser plate 6 on the screw post 8, the structural deformation or even tearing of the condenser plate 6 at the hole can be avoided due to the pressure of the fastener 81 causing the structure at the hole on the condenser plate 6 to move toward the screw post 8.

[0187] Optionally, there may be multiple screw posts 8, which are distributed between the condenser plate 6 and the rear end wall 21 of the outer cylinder 2. Correspondingly, the number of fasteners 81 is consistent with the number of screw posts 8; the number of holes opened on the condenser plate 6 is consistent with the number of screw posts 8, and the positions of the holes correspond one-to-one with the distribution positions of the screw posts 8.

[0188] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure, and not to limit them. Although this disclosure has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this disclosure, and they should all be covered within the scope of the claims and specification of this disclosure. This disclosure is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A clothes drying device, characterized in that, include: Box; An outer cylinder is located inside the housing. An air return port and a liquid inlet are provided on the rear end wall of the outer cylinder, and a liquid drain port is provided at the bottom of the outer cylinder. The inner drum is rotatably disposed inside the outer drum via a rotating shaft that passes through the rear end wall of the outer drum. The inner drum has a drying chamber that can accommodate clothes. The cavity between the inner drum and the outer drum is a first cavity. The drying chamber is connected to the return air vent via the first cavity. A drying air duct is provided outside the outer cylinder. One end of the drying air duct is connected to the return air inlet, and the other end of the drying air duct is connected to the drying chamber. The drying duct is configured to supply gas for drying clothes into the drying chamber and to extract gas from the first chamber through the return air vent. A condensation plate is disposed on the rear end wall of the outer cylinder facing the inner cylinder; The axial direction of the rotating shaft is a first direction. In the first direction, the condensation plate and the rear end wall of the outer cylinder are spaced apart, so that a gap is formed between the condensation plate and the rear end wall of the outer cylinder. The gap is configured to allow coolant flowing out through the inlet to flow in from the top of the gap and into the gap, and to flow out from the bottom of the gap to the outlet; In the first direction, the size of the gap is a, and a satisfies: 0 < a < 5 mm.

2. The clothes drying equipment according to claim 1, characterized in that, The gap is provided with guide ribs; The guide rib is configured to guide at least a portion of the coolant flowing onto the guide rib as the coolant falls from the top of the gap to the bottom of the gap, so that the at least a portion of the coolant can diffuse along at least one of the second directions. Wherein, the second direction is perpendicular to the first direction, and the second direction is also perpendicular to the vertical direction.

3. The clothes drying equipment according to claim 2, characterized in that, The guide rib includes a first guide rib, on which an overflow channel is provided from top to bottom; The flow channel is configured to guide at least a portion of the coolant flowing onto the first guide rib, so that the at least a portion of the coolant can flow below the first guide rib.

4. The clothes drying equipment according to claim 2, characterized in that, The guide rib includes a second guide rib, which is disposed on the rear end wall of the outer cylinder facing the condensation plate. In the first direction, the second guide rib is spaced apart from the condensation plate, so that a first gap is formed between the second guide rib and the condensation plate; The first gap is configured to guide at least a portion of the coolant flowing onto the second guide rib, so that the at least a portion of the coolant can flow below the second guide rib.

5. The clothes drying equipment according to claim 2, characterized in that, The flow guide rib includes a third flow guide rib, which is disposed on the side of the condensation plate facing the rear end wall of the outer cylinder; In the first direction, the third guide rib is spaced apart from the rear end wall of the outer cylinder, so that a second gap is formed between the third guide rib and the rear end wall of the outer cylinder. The second gap is configured to guide at least a portion of the coolant flowing onto the third guide rib, allowing the coolant to flow below the third guide rib.

6. The clothes drying equipment according to claim 2, characterized in that, The guide rib includes a fourth guide rib, which has a first end and a second end disposed opposite to each other in the first direction; In the first direction, one of the condenser plate and the rear end wall of the outer cylinder is fixedly connected to the first end, and the other abuts against the second end.

7. The clothes drying apparatus according to any one of claims 1-6, characterized in that, A screw post is provided within the gap; In the first direction, one end of the screw post is fixed to the rear end wall of the outer cylinder facing the condenser plate, and the other end of the screw post abuts against the condenser plate; The screw post is adapted to be connected to the fastener that passes through the condenser plate, so that the condenser plate is locked to the screw post.

8. The clothes drying equipment according to claim 7, characterized in that, A support member is provided within the gap; In the first direction, one end of the support member is fixed to the rear end wall of the outer cylinder facing the condenser plate, and the other end of the support member abuts against the condenser plate; The support member is configured to cooperate with the screw post so that the condenser plate and the rear end wall of the outer cylinder are spaced apart in the first direction.

9. The clothes drying apparatus according to any one of claims 1-6, characterized in that, The condenser plate is provided with pipes, and the pipes are filled with heat transfer fluid; In the first direction, the pipe protrudes from the condenser plate on one side of the rear end wall of the outer cylinder.

10. A clothes drying device, characterized in that, include: Box; An outer cylinder is located inside the housing. An air return port and a liquid inlet are provided on the rear end wall of the outer cylinder, and a liquid drain port is provided at the bottom of the outer cylinder. The inner drum is rotatably disposed inside the outer drum via a rotating shaft that passes through the rear end wall of the outer drum. The inner drum has a drying chamber that can accommodate clothes. The cavity between the inner drum and the outer drum is a first cavity. The drying chamber is connected to the return air vent via the first cavity. A drying air duct is provided outside the outer cylinder. One end of the drying air duct is connected to the return air inlet, and the other end of the drying air duct is connected to the drying chamber. The drying duct is configured to supply gas for drying clothes into the drying chamber and to extract gas from the first chamber through the return air vent. A condensation plate is disposed on the rear end wall of the outer cylinder facing the inner cylinder; The axial direction of the rotating shaft is a first direction. In the first direction, the condensation plate and the rear end wall of the outer cylinder are spaced apart, so that a gap is formed between the condensation plate and the rear end wall of the outer cylinder. The gap is configured to allow coolant flowing out through the inlet to flow in from the top of the gap and into the gap, and to flow out from the bottom of the gap to the outlet; A screw post is provided within the gap; In the first direction, one end of the screw post is fixed to the rear end wall of the outer cylinder facing the condenser plate, and the other end of the screw post abuts against the condenser plate; The screw post is adapted to be connected to the fastener that passes through the condenser plate, so that the condenser plate is locked to the screw post.

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