Transition connecting device and rainproof device of wind driven generator

Abstract

The utility model relates to the technical field of wind power generation, and discloses a transition connecting device and a rainproof device of a wind driven generator. The transition connecting device is used for the wind driven generator and is connected to a cabin seat, so that a rain shielding piece is connected to the cabin seat through the transition connecting device, the transition connecting device comprises a plate set, a first connecting piece and a second connecting piece, and the first connecting piece is arranged on the plate set and used for being detachably connected with the cabin seat; the second connecting piece is arranged on the plate set and used for being connected with the rain shielding piece. According to the utility model, the transition connecting device is arranged on the cabin seat, and then the rain shielding piece is fixed through the second connecting piece on the transition connecting device, so that the rain shielding piece is firmly arranged on the cabin seat, the operation is simple and efficient, and the convenience of on-site construction is improved.

Description

Technical Field

[0001] This application relates to the field of wind power generation, and in particular to a transition connection device and a rainproof device for a wind turbine. Background Technology

[0002] With the rapid development of wind power technology, the installation and maintenance of wind turbines have become crucial aspects of wind farm operation. During the separate hoisting process of wind turbines, the nacelle, as a critical component, needs to be properly protected to prevent rainwater intrusion and thus avoid damage to the internal equipment.

[0003] In existing technologies, rainproof devices are typically used for temporary rain protection of the cabin. During the installation of the rainproof tarpaulin, it is usually placed directly over the cabin seat opening area. However, because the edges of the cabin seat need to be tightly fitted to the cabin canopy, the edges of the cabin seat are relatively smooth, making it difficult to securely install the rainproof tarpaulin in the cabin seat opening area. Utility Model Content

[0004] In view of this, the present invention provides a transition connection device and a rainproof device for a wind turbine to ensure that the rainproof component is securely installed on the cabin.

[0005] In a first aspect, this utility model provides a transition connection device for a wind turbine generator, connected to a nacelle, so that a rainproof component is connected to the nacelle via the transition connection device, the transition connection device comprising:

[0006] Board assembly;

[0007] A first connector is provided on the plate assembly and is used for detachable connection with the cabin.

[0008] The second connector is disposed on the plate assembly and is used to connect the rainproof component.

[0009] Beneficial Effects: During the installation of the rain shelter using this transition connection device, the device features a first connector that connects to the panel assembly. This first connector allows the panel assembly to be securely mounted on the cabin seat, preventing detachment. After installation, a second connector on the device provides a reliable connection point for the rain shelter. This second connector further secures the rain shelter to the transition connection device, and consequently, to the cabin seat. Compared to the rain shelter directly covering the smooth edge of the cabin seat, this significantly improves the installation's stability, effectively preventing it from being lifted or displaced by external factors such as wind, thus ensuring effective rain protection.

[0010] During the disassembly of the rain shelter, the staff only needs to perform a simple operation: remove the rain shelter from the second connector and then disassemble the transition connection device to smoothly separate the rain shelter from the transition connection device. The entire disassembly process is simple and direct, reducing the complexity and workload of disassembling the rain shelter, transition connection device and cabin, and improving work efficiency.

[0011] In summary, by first installing the transition connection device on the cabin seat, and then fixing the rain cover through the second connector on the transition connection device, the rain cover is securely installed on the cabin seat. This method is simple and efficient, and improves the convenience of on-site construction.

[0012] In one optional embodiment, the plate assembly includes multiple connecting plates, which are arranged sequentially along the length of the plate assembly, and any two adjacent connecting plates are detachably connected.

[0013] Beneficial effects: The panel assembly consists of multiple detachable connecting plates. During the transportation of the panel assembly, it is disassembled into multiple smaller connecting plates, which facilitates passage through narrow channels, such as the tower channels of wind turbines. This effectively ensures that the connecting plates can reach the installation position smoothly, thus facilitating the transportation and installation process of the panel assembly and reducing the difficulty and cost of transporting the panel assembly.

[0014] In one alternative embodiment, the first connector includes an overlapping flange;

[0015] The panel assembly has a first side that connects to the cabin and a second side that is opposite to the first side. The overlapping flange is provided on the first side of the panel assembly. The overlapping flange extends along the length direction of the panel assembly and bends toward the inner wall surface of the panel assembly from the outer wall surface to the inner wall surface of the panel assembly. The overlapping flange is used to hang in the water guide groove of the cabin.

[0016] Beneficial effects: By setting an overlapping flange on the first side of the plate assembly, and bending the overlapping flange towards the inner wall of the plate assembly and setting it along the length direction, when installing the transition connection device, it is only necessary to place the transition connection device on the corresponding seat and let the overlapping flange hang into the water guide groove of the seat to complete the initial positioning, so as to facilitate the installation of the transition connection device on the seat and improve the installation efficiency.

[0017] Meanwhile, the overlapping flange, suspended within the water channel, forms a mechanical locking structure. When subjected to external forces such as wind or vibration, the overlapping flange is blocked by the channel wall, limiting the displacement of the panel assembly and ensuring the stability of the connection between the panel assembly and the cabin. Compared to other connection methods, the connection via the overlapping flange suspended within the water channel is more reliable and less prone to loosening. During long-term use, it effectively maintains the reliability of the transition connection device and rainproof components, ensuring rain protection.

[0018] In addition, the water guide channel is an existing structure on the cabin, eliminating the need for additional drilling or installation of other connectors on the cabin. This avoids damage to the original structure of the cabin, reduces the number of parts during installation, and lowers the installation difficulty and the probability of errors.

[0019] In one alternative embodiment, the first connector further includes a plurality of flexible cable connectors;

[0020] Multiple flexible cable connectors are spaced apart along the length of the plate assembly, and are disposed on the inner wall surface of the plate assembly. The multiple flexible cable connectors are used for detachable connection with the cabin via flexible cables.

[0021] Beneficial effects: Multiple flexible cable connectors are spaced apart along the length of the panel assembly, forming a multi-point connection structure. This allows the panel assembly to be tightly connected to the cabin from different positions, effectively distributing the stress at the connection points and avoiding stress concentration, thereby significantly enhancing the reliability of the connection. For example, in windy environments, even if strong winds exert significant tensile or thrust forces on the rain shelter and panel assembly, the multiple flexible cable connectors, connected to the cabin via flexible cables, ensure that the panel assembly is stably fixed to the cabin, preventing displacement, loosening, or even detachment.

[0022] Because the flexible cable connectors are located on the inner wall of the panel assembly, during installation, workers can easily operate the flexible cables and connect them from inside the cabin, without being overly affected by external environmental factors (such as wind, rain, or high-altitude conditions). Furthermore, due to the flexibility of the flexible cables, the precision requirements for the connection position are relatively low, making it easier to match with the connection points on the cabin, thus improving the convenience and speed of installation.

[0023] Furthermore, the detachable connection between the flexible cable and the flexible cable connectors allows for greater flexibility during installation, disassembly, and adjustment.

[0024] In one alternative embodiment, the first connector further includes a connecting flange;

[0025] The connecting plates at both ends of the plate assembly are end connecting plates. The connecting flange is provided on the inner wall surface of the end connecting plate and extends along the width direction of the plate assembly. From the outer wall surface of the plate assembly to the inner wall surface of the plate assembly, the connecting flange bends toward the inner wall surface of the plate assembly. The connecting flange is detachably connected to the cabin by fasteners.

[0026] Beneficial effects: The connecting flange extends along the width of the plate group and bends towards the inner wall of the plate group. The end connecting plate is connected to the connecting flange and the cabin seat by fasteners, so that the end connecting plate is firmly installed on the cabin seat, thereby providing stable end support for the entire transition connection device.

[0027] Furthermore, the connecting flange is located on the inner wall of the end connecting plate, allowing workers to install it directly from inside the cabin during installation. Simultaneously, the position of the connecting flange is relatively fixed and clearly defined, making it easy to align with the corresponding connection points on the cabin, reducing alignment difficulties during installation and improving installation efficiency.

[0028] In one optional embodiment, the second connector includes a plurality of hooks spaced apart along the length of the panel assembly. The plurality of hooks are disposed on the inner wall surface of the panel assembly and close to the second side. The plurality of hooks are used to connect the tightening cord of the rain cover.

[0029] Beneficial effects: Multiple hooks are spaced apart along the length of the panel assembly, allowing the tightening ropes of the rain shelter to connect to the panel assembly at multiple points. This evenly distributes external forces (such as wind force and the weight of rainwater) on the rain shelter to each hook, preventing stress concentration on a few hooks that could lead to connection failure. In strong winds, this evenly distributed connection method ensures that the rain shelter is firmly fixed to the transition connection device, preventing it from being blown away or shifted by the wind, effectively maintaining the rain shelter effect.

[0030] By placing the mounting brackets on the inner wall of the panel assembly, workers can operate from inside the cabin when installing the rain shelter. Installing the rain shelter from inside the cabin avoids interference from external environmental factors, improving the safety and comfort of the installation. At the same time, internal operation allows workers to more intuitively observe and adjust the connection between the rain shelter and the mounting brackets, ensuring the accuracy and firmness of the connection.

[0031] In addition, workers only need to pass the tightening rope through the hanger to complete the initial connection, and then tighten the tightening rope and fix it properly (such as by tying a knot or using a rope buckle) to achieve a firm installation of the rain cover. The operation is convenient and improves the installation efficiency of the rain cover.

[0032] In one optional embodiment, a drainage groove is provided on the outer wall surface of the plate assembly, extending along the length direction of the plate assembly, and the drainage groove is located on the second side near the plate assembly;

[0033] Along the length of the plate assembly, from the middle area of ​​the drainage channel to both ends of the drainage channel, at least a portion of the drainage channel is inclined downwards.

[0034] Beneficial Effects: By incorporating drainage channels on the outer wall of the panel assembly, extending along the length of the assembly and positioned close to the second side, a clear flow path for rainwater is provided. During rainy weather, rainwater on the panel assembly quickly collects in the drainage channels and flows along them. Because at least part of the drainage channels gradually slopes downwards from the middle area to both ends, gravity further accelerates the water flow, allowing rainwater to be quickly discharged and preventing accumulation on the panel assembly. This effectively prevents rainwater from accumulating on the panel assembly surface, reducing the risk of rainwater seeping into the cabin interior or leaking through other connection points.

[0035] In addition, the drainage channel promptly drains rainwater, significantly reducing the time and opportunity for rainwater to remain on the surface of the panel assembly. This allows rainwater on the panel assembly to drain through the drainage channel, preventing rainwater from flowing onto the rain shelter and causing leakage from the connection between the rain shelter and the transition connection device, thus providing reliable rain protection for the cabin.

[0036] In one optional embodiment, the drainage trough includes a horizontal section and two inclined sections located at both ends of the horizontal section along its length. The inclined sections are connected to the horizontal section and are inclined downward along one end of the horizontal section.

[0037] Beneficial effects: The horizontal section collects rainwater. When rainwater falls on the surface of the slab, some of it first collects in the horizontal section of the drainage channel. Since the two inclined sections are located at both ends of the horizontal section and slope downwards, after a certain amount of rainwater is collected in the horizontal section, it will quickly flow to the inclined sections under the influence of gravity. The inclined sections also accelerate the flow of rainwater, allowing it to drain out more quickly and effectively preventing rainwater from accumulating in the drainage channel, thus avoiding water accumulation on the slab.

[0038] In one optional embodiment, one of any two adjacent connecting plates is provided with a first flange, and the other connecting plate is provided with a second flange corresponding to the first flange, wherein the first flange and the second flange are detachably connected.

[0039] Beneficial effects: When installing the panels, workers only need to connect the first flange of one connecting plate to the corresponding second flange of another connecting plate. Compared with some complex connection methods, flange connections have relatively lower alignment requirements, enabling faster splicing of adjacent connecting plates and improving installation efficiency.

[0040] The first and second flanges cooperate to form a mechanical locking structure between adjacent connecting plates. When subjected to external forces, such as the rain shelter exerting tension on the plate assembly under wind, the connection between the flanges effectively prevents relative displacement between the connecting plates, enhancing the overall stability of the plate assembly.

[0041] In one optional embodiment, the first flange rests on the second flange, and both the first flange and the second flange have a plurality of mounting holes. The first flange is connected to the second flange by fasteners passing through the mounting holes.

[0042] Beneficial effects: When installing two adjacent connecting plates, placing the first flange on top of the second flange allows the contact surfaces of the first and second flanges to form a sealing surface, creating an effective waterproof barrier at the joint of the two adjacent connecting plates. This prevents rainwater from entering through the gap between the two connecting plates and avoids further penetration of rainwater into the cabin interior.

[0043] Furthermore, multiple mounting holes are correspondingly provided on the first and second flanges, and fasteners are used to connect them, thus securing adjacent connecting plates. Multiple fasteners distribute the connection force evenly across multiple locations, preventing stress concentration in a few mounting holes. When external loads are applied to the connecting plates, the multiple fasteners work together to bear and disperse the external force, ensuring a tight connection between adjacent connecting plates.

[0044] In an alternative embodiment, a sealing gasket is further included, the sealing gasket being sandwiched between the first flange and the second flange.

[0045] Beneficial effects: The contact surfaces of the first and second flanges can form a certain sealing effect. However, in practical applications, due to factors such as machining accuracy, installation errors, or wear after long-term use, a small gap may appear between the first and second flanges. By placing a sealing gasket between the first and second flanges, the gap can be effectively filled, ensuring that rainwater cannot seep in from the joint between adjacent connecting plates.

[0046] In one alternative embodiment, a plurality of lifting rings are spaced apart on the outer wall surface of the plate assembly.

[0047] Beneficial effects: When installing the transition connection device, multiple lifting rings provide convenient connection points for lifting operations. Workers can use ropes, hooks and other tools to lift the plate assembly through the lifting rings and accurately place it in the corresponding position of the cabin.

[0048] Secondly, this utility model also provides a rainproof device for a wind turbine, the wind turbine having a housing, including:

[0049] A transition connection device, wherein the plate assembly is detachably mounted on the cabin;

[0050] The rain cover is detachably mounted on the second connector.

[0051] Beneficial effects: The rainproof device of this wind turbine is made by installing the transition connection device on the nacelle and then fixing the rainproof component through the second connector on the transition connection device, which ensures that the rainproof component is firmly installed on the nacelle. The operation is simple and efficient, and improves the convenience of on-site construction.

[0052] In one optional embodiment, the rainproof component has an inner rainproof layer and an outer rainproof layer on one side. The inner rainproof layer is connected to a hook on the inner wall of the panel assembly, and the outer rainproof layer is attached to the outer wall of the panel assembly.

[0053] Beneficial effects: By setting one side of the rain shelter as an inner and outer rain shelter layer, and connecting the inner rain shelter layer to the hanging parts on the inner wall of the panel assembly, the connection between the rain shelter and the panel assembly is ensured to be firm, so that the rain shelter can better resist the action of external forces such as wind. When encountering strong winds, the connection points of the inner rain shelter layer can effectively disperse the wind force on the rain shelter, preventing the rain shelter from being blown away or shifted by the wind, and ensuring that the rain shelter can still tightly cover the panel assembly under the action of wind.

[0054] The rain-shielding outer layer is attached to the outer wall of the panel assembly, allowing rainwater to flow quickly along the outer layer to the drainage channels on the panel assembly. The adhesion of the rain-shielding outer layer reduces the gap at the connection between the rain-shielding component and the panel assembly, helps guide the flow of rainwater, prevents rainwater from accumulating on the surface of the panel assembly or seeping into the connection gap between the panel assembly and the rain-shielding component, and enhances the overall waterproof performance. Attached Figure Description

[0055] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0056] Figure 1 This is a schematic diagram of a transition connection device provided in this application installed on a cabin seat;

[0057] Figure 2 This is a structural schematic diagram from another perspective of a transition connection device provided in this application installed on a cabin seat;

[0058] Figure 3 This is a schematic diagram of the structure of a transition connection device provided in this application;

[0059] Figure 4 This is a front view of a transition connection device provided in this application;

[0060] Figure 5 This is a structural schematic diagram of a transition connection device provided in this application from another perspective;

[0061] Figure 6 This is a schematic diagram illustrating the principle of connecting two adjacent connecting plates in a transition connection device provided in this application;

[0062] Figure 7 This is a cross-sectional view of a transition connection device provided in this application installed on a cabin.

[0063] Figure 8 yes Figure 7 A magnified view of a portion of point A in the middle;

[0064] Figure 9 This is a schematic diagram illustrating the principle of a transition connection device connecting to a rainproof component, as provided in this application.

[0065] Explanation of reference numerals in the attached figures:

[0066] 1. Cabin; 101. Water channel; 2. Rain shelter; 201. Inner rain shelter layer; 202. Outer rain shelter layer; 3. Plate assembly; 301. Connecting plate; 3011. End connecting plate; 3012. First flange; 30121. Mounting hole; 3013. Second flange; 302. First side; 303. Second side; 304. Drainage channel; 3041. Horizontal section; 3042. Inclined section; 306. Lifting ring; 307. Outer wall surface; 308. Inner wall surface; 4. First connector; 401. Overlap flange; 402. Flexible cable connector; 403. Connecting flange; 5. Second connector. Detailed Implementation

[0067] In related technologies, with the booming development of wind power generation, the trend towards larger turbine units has become significant. In this process, split-type hoisting technology has emerged. Its importance lies in its ability to effectively reduce reliance on large cranes, overcome limitations in crane selection, and achieve flexible allocation of crane resources, thereby significantly reducing project construction costs and becoming a key technological practice in the wind power generation field.

[0068] In the separate hoisting process of wind turbines, the nacelle base is first hoisted onto the tower, and then the nacelle cover is hoisted and connected to the base. However, in actual hoisting operations, there are often situations where the nacelle base waits to be connected to the cover, with waiting times ranging from one night to a week. During this waiting period, if it rains, rainwater can enter the nacelle through its openings, causing internal components to be corroded and damaged.

[0069] To address this, this application attempted to prevent rainwater from entering the cabin's interior and causing corrosion during the waiting period by first installing the hatch cover on the cabin seat. The hatch cover would then be opened when the drivetrain needed to be installed. However, the installation, repositioning, and reopening of the hatch cover required significant manual labor time, and its weight and size necessitated the use of large cranes. This not only significantly increased the overall project time but also led to a substantial rise in comprehensive costs, negatively impacting the project's efficient progress and cost control.

[0070] Therefore, this application attempts to use a tarpaulin laid in the hatch opening area to prevent rainwater from entering the hatch interior. Compared to installing a hatch cover, the installation process of the tarpaulin is much simpler, requiring no large crane resources and significantly reducing construction difficulty and cost. However, for this rainproof method to ensure the tarpaulin effectively protects against rain, workers need to securely fix it to the hatch opening area. However, because the edges of the hatch need to be tightly spliced ​​with the hatch cover, the edges of the hatch are relatively smooth, resulting in no reliable connection points on the edge walls of the hatch for attaching the tarpaulin. Consequently, the tarpaulin cannot be securely installed in the hatch opening area.

[0071] Based on this, this application, in addition to using a rainproof tarpaulin for rain protection, further connects a transition connection device to the cabin seat. First, the transition connection device is installed on the cabin seat, and then the rainproof component is fixed in place using a second connector on the transition connection device, ensuring that the rainproof component is securely installed on the cabin seat and guaranteeing the rainproof effect of the tarpaulin on the cabin seat opening area. Simultaneously, the transition connection device is equipped with an overlapping flange, a connecting flange, and a flexible cable connector to ensure that the transition connection device can be securely installed on the cabin seat.

[0072] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this application, but not all embodiments.

[0073] To solve the above technical problems, the following will be combined with... Figures 1 to 9 The following describes embodiments of the present invention.

[0074] According to embodiments of the present invention, on the one hand, such as Figures 1 to 9 As shown, a transition connection device is provided for a wind turbine generator, which is connected to the nacelle 1 to allow the rain cover 2 (such as...) to... Figure 9 (As shown) It is connected to the cabin 1 via a transition connection device. The transition connection device includes a plate assembly 3, a first connector 4, and a second connector 5.

[0075] Specifically, such as Figures 1 to 5 As shown, the first connector 4 is disposed on the plate assembly 3, and the first connector 4 is used for detachable connection with the cabin 1.

[0076] Specifically, such as Figures 1 to 5 As shown, the second connector 5 is disposed on the plate assembly 3, and the second connector 5 is used to connect the rain cover 2 (such as...). Figure 9 (As shown).

[0077] In the process of installing the rain shelter 2 using this transitional connection device, the transitional connection device is equipped with a first connector 4 that connects to the plate assembly 3. The plate assembly 3 can be installed on the cabin seat 1 through the first connector 4, ensuring a firm connection between the plate assembly 3 and the cabin seat 1 and preventing the plate assembly 3 from detaching from the cabin seat 1. After the transitional connection device is installed on the cabin seat 1, the transitional connection device is equipped with a second connector 5, which provides a reliable connection point for the rain shelter 2. The connection between the second connector 5 and the rain shelter 2 allows the rain shelter 2 to be more firmly connected to the transitional connection device, thereby ensuring a firm connection between the rain shelter 2 and the cabin seat 1. Compared to the rain shelter 2 directly covering the smooth edge of the cabin seat 1, this improves the firmness of the installation of the rain shelter 2 and effectively prevents the rain shelter 2 from being lifted or displaced under the influence of external factors such as wind, ensuring the rainproof effect.

[0078] During the disassembly of the rain shelter 2, the staff only needs to perform a simple operation to remove the rain shelter 2 from the second connector 5 and then disassemble the transition connection device to smoothly complete the separation of the rain shelter 2 from the transition connection device. The entire disassembly process is simple and direct, which reduces the complexity and workload of disassembling the rain shelter 2, the transition connection device and the cabin 1, and improves work efficiency.

[0079] In summary, by first installing the transition connection device on the cabin 1, and then fixing the rain cover 2 through the second connector 5 on the transition connection device, the rain cover 2 is securely installed on the cabin 1. This method is simple and efficient, and improves the convenience of on-site construction.

[0080] Specifically, the rain cover 2 can be an existing rain cover component such as a rainproof cloth or a foldable rain cover. In this embodiment, the type of rain cover 2 is not limited.

[0081] For example, the rain cover 2 can be made of a rainproof cloth. The rainproof cloth can be deformed to reduce its volume and is lightweight, which makes it easy to transport the rainproof cloth into the cabin 1. It also makes it easy to cover the cabin 1 with the rainproof cloth, facilitates the connection between the rainproof cloth and the transition connection device, and makes it easy to install and remove the rainproof cloth.

[0082] Specifically, the first connector 4 can be disposed on the inner wall surface 308 of the plate group 3 or on the outer wall surface 307 of the plate group 3. In this embodiment, the placement of the first connector 4 on the plate group 3 is not specifically limited.

[0083] Specifically, the first connector 4 can be an existing connector such as a bolt connector, hook connector, or snap connector. In this embodiment, the structure of the first connector 4 is not specifically limited.

[0084] For example, the first connector 4 is disposed on the inner wall surface 308 of the plate assembly 3, and the first connector 4 is a bolt connector. During the installation of the transition connection device, since the first connector 4 is disposed on the inner wall surface 308 of the plate assembly 3, the workers can install the transition connection device inside the nacelle 1. The bolt connector can be a threaded hole disposed on the plate assembly 3. Usually, the nacelle 1 also has a corresponding threaded hole or nut seat. During installation, the bolt is passed through the threaded hole on the plate assembly 3 and mates with the threaded hole or nut seat on the nacelle 1. Tightening the nut achieves a secure connection. Bolt connectors have the advantages of high connection strength and good adjustability, can adapt to connection parts of different thicknesses, and can apply appropriate preload as needed to ensure the tightness and stability of the connection. For example, on the nacelle 1 of a wind turbine generator, high-strength bolt connectors are used to firmly connect the plate assembly 3 to the designated position, which can effectively resist various external forces and ensure that the plate assembly 3 does not loosen or shift during long-term use.

[0085] Specifically, the second connector 5 can be disposed on the inner wall surface 308 of the plate group 3 or on the outer wall surface 307 of the plate group 3. In this embodiment, the placement of the second connector 5 on the plate group 3 is not specifically limited.

[0086] Specifically, the second connector 5 can be an existing connector such as a bolt connector, hook connector, or snap connector. In this embodiment, the structure of the second connector 5 is not specifically limited.

[0087] For example, consider a second connector 5 located on the inner wall surface 308 of the panel assembly 3, where the second connector 5 is a hook connector. When installing the rain shelter 2, since the second connector 5 is located on the inner wall surface 308 of the panel assembly 3, the operator can perform the installation operation of the rain shelter 2 inside the cabin 1. Specifically, since the second connector 5 is a hook connector, and the rain shelter 2 is usually equipped with a tightening rope, the operator only needs to pass the tightening rope through the hook connector and then fix the tightening rope to easily achieve a secure installation of the rain shelter 2 on the second connector 5. In this case, not only is the internal space of the cabin 1 fully utilized, facilitating operator operation, but the cooperation between the hook connector and the tightening rope effectively ensures the stability of the rain shelter 2 installation.

[0088] Specifically, such as Figure 1 and Figure 2 As shown, the panel assembly 3 can be constructed as a curved structure with an opening, and the panel assembly 3 matches a portion of the outer contour of the opening of the cabin 1. Installing the panel assembly 3 on the outer contour of the opening of the cabin 1 ensures a tight fit between the panel assembly 3 and the outer contour of the opening of the cabin 1, effectively preventing rainwater from seeping in from the connection between the panel assembly 3 and the cabin 1.

[0089] In one embodiment, such as Figure 3 and Figure 4 As shown, the plate group 3 includes multiple connecting plates 301, which are arranged sequentially along the length of the plate group 3. Any two adjacent connecting plates 301 can be detached.

[0090] The plate assembly 3 is composed of multiple detachable connecting plates 301. During the transportation of the plate assembly 3, the plate assembly 3 is disassembled into multiple smaller connecting plates 301, which facilitates passage through narrow channels, such as the tower channel of a wind turbine. This effectively ensures that the connecting plates 301 can reach the installation position smoothly, thus facilitating the transportation and installation process of the plate assembly 3 and reducing the transportation difficulty and cost of the plate assembly 3.

[0091] It should be noted that, as Figure 3 As shown, the length direction of plate group 3 refers to the extension direction of the relatively longer side of plate group 3, and the width direction of plate group 3 refers to the extension direction of the relatively narrower side of plate group 3.

[0092] Specifically, the multiple connecting plates 301 of the plate group 3 can be connected by existing detachable connection methods such as bolt connection, snap connection, and hinge connection. In this embodiment, no specific restrictions are placed on the detachable connection method of the multiple connecting plates 301.

[0093] For example, bolt holes are pre-set at the connection points of the connecting plates 301, and adjacent connecting plates 301 are fastened together by bolts and nuts. Bolted connections have high connection strength and reliability, and can withstand certain tensile, compressive and shear forces. They are suitable for situations where high connection strength is required and frequent disassembly and assembly are necessary.

[0094] Specifically, a first connector 4 or a second connector 5 can be provided on each connecting plate 301 of the plate group 3, or the first connector 4 or the second connector 5 can be provided on some of the connecting plates 301 among the multiple connecting plates 301. In this embodiment of the application, the correspondence between the first connector 4, the second connector 5 and the connecting plate 301 is not specifically limited.

[0095] To facilitate understanding of the installation of the rain cover 2 with the cabin 1 via the transition connection device, an example is given here.

[0096] During installation, workers can connect multiple connecting plates 301 to form a plate assembly 3 on the ground. A crane is then used to hoist the plate assembly 3 to the opening of the cabin 1. Workers then use the first connecting piece 4 to install and secure the plate assembly 3 onto the cabin 1. After the transition connection device is connected to the cabin 1, it is connected to the rain shelter 2 via the second connecting piece 5, ensuring that the rain shelter 2 is securely installed on the transition connection device and thus guaranteeing a firm connection between the rain shelter 2 and the cabin 1.

[0097] During disassembly, the workers removed the rain cover 2 from the second connector 5, then disassembled the transition connection device, and disassembled the panel 3 into multiple smaller connecting plates 301 inside the cabin 1. This facilitates the direct transport of the disassembled panel 3 from the tower channel of the wind turbine to the ground without the need for external cranes, thus reducing the difficulty of transporting the panel 3.

[0098] In one embodiment, such as Figures 1 to 5 ,as well as Figure 7 and Figure 8 As shown, the panel assembly 3 has a first side 302 and a second side 303 opposite to the first side 302. The side of the panel assembly 3 that connects to the cabin 1 is the first side 302. The first connecting member 4 includes an overlapping flange 401, which is disposed on the first side 302 of the panel assembly 3. The overlapping flange 401 extends along the length direction of the panel assembly 3 and bends towards the inner wall surface 308 of the panel assembly 3 from the outer wall surface 307 to the inner wall surface 308. The overlapping flange 401 is used to hang in the water guide trough 101 of the cabin 1.

[0099] By setting an overlapping flange 401 on the first side 302 of the plate group 3, and bending the overlapping flange 401 toward the inner wall surface 308 of the plate group 3 and setting it along the length direction, when installing the transition connection device, it is only necessary to place the transition connection device on the cabin seat 1 accordingly, so that the overlapping flange 401 can be hung into the water guide groove 101 of the cabin seat 1 to complete the initial positioning, so as to facilitate the installation of the transition connection device on the cabin seat 1 and improve the installation efficiency.

[0100] Meanwhile, the overlapping flange 401, suspended within the water guide channel 101, forms a mechanical locking structure. When subjected to external forces, such as wind or vibration, the overlapping flange 401 is blocked by the channel wall of the water guide channel 101, limiting the displacement of the plate assembly 3 and thus ensuring the stability of the connection between the plate assembly 3 and the cabin 1. Compared with other connection methods, the connection via the overlapping flange 401 suspended within the water guide channel 101 is more reliable and less prone to loosening. During long-term use, it effectively maintains the reliability of the transition connection device and the rainproof component 2, ensuring rain protection.

[0101] In addition, the water guide channel 101 is an existing structure on the cabin 1, so there is no need to drill additional holes or install other connectors on the cabin 1, which avoids damage to the original structure of the cabin 1, and also reduces the number of parts in the installation process, thus reducing the installation difficulty and the probability of error.

[0102] Specifically, each connecting plate 301 may have an overlapping flange 401 on one side. The overlapping flanges 401 of multiple connecting plates 301 are connected sequentially to form the overlapping flanges 401 of the plate assembly 3, so that the overlapping flanges 401 of the plate assembly 3 have good continuity, so that the overlapping flanges 401 can be hung in the water guide channel 101. If there is a gap on the overlapping flange 401, during the process of hanging the overlapping flange 401, the gapped part of the overlapping flange 401 may be caught on the channel wall of the water guide channel 101, thus causing interference and affecting the installation of the plate assembly 3.

[0103] Specifically, the overlapping flange 401 is provided to extend along the length direction of the plate group 3, which can be understood as the length of the overlapping flange 401 extending along the length direction of the plate group 3.

[0104] Specifically, the shape of the overlapping flange 401 is adapted to the shape of the water channel 101 of the cabin 1, ensuring that the overlapping flange 401 can be securely hung in the water channel 101.

[0105] In one embodiment, such as Figures 1 to 5 As shown, the first connector 4 also includes a plurality of flexible cable connectors 402. The plurality of flexible cable connectors 402 are spaced apart along the length of the plate assembly 3 and are disposed on the inner wall surface 308 of the plate assembly 3. The plurality of flexible cable connectors 402 are used for detachable connection with the cabin 1 via flexible cables.

[0106] Multiple flexible cable connectors 402 are spaced apart along the length of the plate assembly 3, forming a multi-point connection structure. This allows the plate assembly 3 to be tightly connected to the cabin 1 from different positions, effectively distributing the force at the connection points and avoiding stress concentration, thereby significantly enhancing the reliability of the connection. For example, in windy environments, even if strong winds exert significant tensile or thrust forces on the rain shelter 2 and the plate assembly 3, the multiple flexible cable connectors 402, connected to the cabin 1 via flexible cables, ensure that the plate assembly 3 is stably fixed to the cabin 1, preventing displacement, loosening, or even detachment.

[0107] Because the flexible cable connector 402 is located on the inner wall 308 of the panel assembly 3, during installation, workers can easily operate the flexible cable and connect it to the connector 402 from inside the cabin 1, without being excessively affected by external environmental factors (such as windy and rainy weather, high-altitude environment). At the same time, due to the flexibility of the flexible cable, the precision requirements for the connection position are relatively low during the connection process, making it easier to match with the connection points on the cabin 1, thus improving the convenience and speed of installation.

[0108] Furthermore, the detachable connection between the flexible cable and the flexible cable connector 402 provides greater flexibility during installation, disassembly, and adjustment.

[0109] For example, if it is found during installation that the position of a flexible cable connector 402 does not match the corresponding connection point on the cabin 1, the length or connection position of the flexible cable can be easily adjusted without making large-scale changes to the entire connection structure, which can effectively reduce the installation difficulty and cost.

[0110] It should be noted that a flexible rope is a soft and strong rope-like component. A flexible rope can be a rope, wire rope, polyester fiber rope, chain, etc. In this embodiment of the application, no specific limitation is made on the type of flexible rope.

[0111] Specifically, the flexible cable connector 402 can be an existing connector for connecting flexible cables, such as a metal hook, metal clip, or rope clamp. In this embodiment, the structure of the flexible cable connector 402 is not specifically limited.

[0112] Specifically, the flexible cable connector 402 can be fixedly connected to the inner wall of the plate assembly 3, or it can be detachably connected by means of snap-fit, bolt connection, etc. In this embodiment of the application, no specific restrictions are placed on the connection method between the flexible cable connector 402 and the plate assembly 3.

[0113] For example, the flexible cable connector 402 can be a metal hook, which is typically made of high-strength metal and has a circular or elliptical ring shape. The inner diameter of the metal hook matches the diameter of the flexible cable, allowing the cable to pass through it to form a connection. One side of the metal hook is fixedly connected to the inner wall 308 of the plate assembly 3, which can be achieved through welding, riveting, or bolting. The metal hook has the advantages of simple structure, high reliability, and the ability to withstand large tensile forces, making it suitable for long-term use and situations with high stress. For example, in areas with strong winds, using a metal hook to connect the flexible cable to the plate assembly 3 can ensure the stability of the connection and prevent the flexible cable from coming off the flexible cable connector 402 under strong winds.

[0114] Specifically, the flexible cable connector 402 can be disposed on the inner wall surface 308 near the first side 302 of the plate group 3, or it can be disposed in the middle area of ​​the inner wall surface 308 of the plate group 3. In this embodiment, the placement of the flexible cable connector 402 is not specifically limited.

[0115] Specifically, in the plurality of connecting plates 301, a flexible cable connector 402 can be provided on each connecting plate 301, or the flexible cable connector 402 can be provided on some of the connecting plates 301. In the embodiments of this application, the correspondence between the flexible cable connector 402 and the connecting plate 301 is not specifically limited.

[0116] In one embodiment, such as Figures 1 to 5 As shown, the first connector 4 also includes a connecting flange 403. The connecting plates 301 at both ends of the plate assembly 3 are end connecting plates 3011. The connecting flange 403 is disposed on the inner wall surface 308 of the end connecting plate 3011 and extends along the width direction of the plate assembly 3. From the outer wall surface 307 of the plate assembly 3 to the inner wall surface 308 of the plate assembly 3, the connecting flange 403 bends towards the inner wall surface 308 of the plate assembly 3. The connecting flange 403 is detachably connected to the cabin 1 by fasteners.

[0117] The connecting flange 403 extends along the width direction of the plate group 3 and bends toward the inner wall surface 308 of the plate group 3. The end connecting plate 3011 connects the connecting flange 403 and the cabin 1 through fasteners, so that the end connecting plate 3011 is firmly installed on the cabin 1, thereby providing stable end support for the entire transition connection device.

[0118] Furthermore, the connecting flange 403 is located on the inner wall surface 308 of the end connecting plate 3011, allowing workers to install it directly from inside the cabin 1 during installation. Simultaneously, the position of the connecting flange 403 is relatively fixed and clearly defined, making it easy to align with the corresponding connection point on the cabin 1, reducing alignment difficulties during installation and improving installation efficiency.

[0119] Specifically, the connecting flange 403 is bent toward the inner wall surface 308 of the plate group 3. The connecting flange 403 can be a horizontal flange or an inclined flange. In this embodiment, the shape of the connecting flange 403 is not specifically limited.

[0120] Specifically, multiple through holes can be provided on the connecting flange 403 for fasteners to pass through. When fixing the connecting flange 403, the fasteners can be connected to the cabin 1 by passing through the through holes of the connecting flange 403.

[0121] In one embodiment, such as Figures 1 to 5 As shown, the second connector 5 includes multiple hooks, which are spaced apart along the length of the panel assembly 3. The multiple hooks are disposed on the inner wall of the panel assembly 3 and are located near the second side 303 of the panel assembly 3. The multiple hooks are used to connect the tightening rope of the rain cover 2.

[0122] Multiple hangers are spaced apart along the length of the panel assembly 3, allowing the tightening rope of the rain shelter 2 to connect to the panel assembly 3 at multiple points. This evenly distributes external forces (such as wind force and the weight of rainwater) on the rain shelter 2 to each hanger, preventing stress concentration on a few hangers that could lead to connection failure. In strong winds, this evenly distributed connection method ensures that the rain shelter 2 is firmly fixed to the transition connection device, preventing it from being blown away or shifted by the wind, thus effectively maintaining the rain shelter effect.

[0123] The mounting bracket is installed on the inner wall surface 308 of the panel assembly 3, allowing workers to operate from inside the cabin 1 when installing the rain shelter 2. Installing the rain shelter 2 from inside the cabin 1 avoids interference from external environmental factors, improving the safety and comfort of the installation. At the same time, internal operation allows workers to more intuitively observe and adjust the connection between the rain shelter 2 and the mounting bracket, ensuring the accuracy and firmness of the connection.

[0124] In addition, the staff only need to pass the tightening rope through the hanger to complete the initial connection, and then tighten the tightening rope and fix it properly (such as by tying a knot or using a rope buckle) to achieve the secure installation of the rain cover 2. The operation is convenient and improves the installation efficiency of the rain cover 2.

[0125] Specifically, the mounting hardware can be existing mounting components such as metal hooks or rope loops. In this embodiment, the type of mounting hardware is not limited.

[0126] Specifically, in the plurality of connecting plates 301, a hook can be provided on each connecting plate 301, or a hook can be provided on some of the connecting plates 301. In the embodiments of this application, no specific limitation is made on the correspondence between the hook and the connecting plate 301.

[0127] In one embodiment, such as Figures 3 to 5 As shown, a drainage groove 304 is provided on the outer wall surface 307 of the plate assembly 3. The drainage groove 304 extends along the length direction of the plate assembly 3 and is located near the second side 303 of the plate assembly 3. At least a portion of the drainage groove 304 is inclined downwards along the length direction of the plate assembly 3, from the middle area to both ends of the drainage groove 304.

[0128] By providing drainage channels 304 on the outer wall surface 307 of the panel assembly 3, extending along the length of the panel assembly 3 and positioned close to the second side 303, a clear flow path is provided for rainwater. In rainy weather, rainwater on the panel assembly 3 can quickly collect in the drainage channels 304 and flow along them. Since at least a portion of the drainage channels 304 slopes downwards from the middle area to both ends, gravity further accelerates the water flow, allowing rainwater to be quickly discharged through the drainage channels 304 and preventing accumulation on the panel assembly 3. This effectively prevents rainwater from accumulating on the surface of the panel assembly 3, reducing the risk of rainwater seeping into the interior of the cabin 1 or leaking through other connection points.

[0129] In addition, rainwater is discharged in a timely manner through the drainage channel 304. The drainage channel 304 significantly reduces the time and opportunity for rainwater to stay on the surface of the panel 3, allowing rainwater on the panel 3 to be discharged through the drainage channel 304, preventing rainwater on the panel 3 from flowing onto the rain shelter 2, which would cause rainwater to leak from the connection between the rain shelter 2 and the transition connection device, thus providing reliable rain protection for the cabin 1.

[0130] Specifically, the drainage channel 304 can be configured as an arc-shaped channel, an inclined guide channel, etc. In this embodiment, the structure of the drainage channel 304 is not specifically limited.

[0131] Specifically, the depth and width of the drainage trough 304 can be adaptively adjusted according to the structure of the plate group 3. In this embodiment, the depth and width of the drainage trough 304 are not specifically limited.

[0132] In one embodiment, such as Figure 3 As shown, the drainage trough 304 includes a horizontal section 3041 and two inclined sections 3042. The two inclined sections 3042 are respectively disposed at both ends of the horizontal section 3041 along its length direction, and the inclined sections 3042 are connected to the horizontal section 3041. The inclined sections 3042 are inclined downward along one end of the horizontal section 3041.

[0133] The horizontal section 3041 serves to collect rainwater. When rainwater falls on the surface of the panel 3, some of it first collects in the horizontal section 3041 of the drainage channel 304. Since the two inclined sections 3042 are located at both ends of the horizontal section 3041 and slope downwards, after a certain amount of rainwater is collected in the horizontal section 3041, it will quickly flow to the inclined section 3042 under the action of gravity. The inclined section 3042 will accelerate the flow of rainwater, allowing it to be discharged more quickly and effectively preventing rainwater from accumulating in the drainage channel 304, thereby avoiding water accumulation on the panel 3.

[0134] In one embodiment, such as Figure 6 As shown, one of any two adjacent connecting plates 301 is provided with a first flange 3012, and the other connecting plate 301 is provided with a second flange 3013. The second flange 3013 is provided in correspondence with the first flange 3012, and the two adjacent connecting plates 301 are detachably connected through the first flange 3012 and the second flange 3013.

[0135] When installing panel 3, the operator only needs to connect the first flange 3012 on one connecting plate 301 to the corresponding second flange 3013 on another connecting plate 301. Compared with some complex connection methods, the alignment requirements of flange connection are relatively low, which can complete the splicing of adjacent connecting plates 301 more quickly and improve installation efficiency.

[0136] The first flange 3012 and the second flange 3013 cooperate with each other to form a mechanical locking structure between adjacent connecting plates 301. When subjected to external forces, such as when the rain shield 2 exerts a tensile force on the plate assembly 3 under wind, the connection between the flanges can effectively prevent relative displacement between the connecting plates 301, thereby enhancing the overall stability of the plate assembly 3.

[0137] Specifically, the first flange 3012 and the second flange 3013 can be connected by any existing connection method such as bolt connection or snap connection. In this embodiment of the application, no specific restrictions are placed on the connection method of the first flange 3012 and the second flange 3013.

[0138] Specifically, the first flange 3012 and the second flange 3013 can be configured as elongated structures that extend along the width direction of the plate assembly 3.

[0139] In one embodiment, such as Figure 6 As shown, the first flange 3012 and the second flange 3013 are provided with a plurality of mounting holes 30121. When two adjacent connecting plates 301 are installed, the first flange 3012 is placed on the second flange 3013, and the connection between the first flange 3012 and the second flange 3013 is achieved by fasteners passing through the mounting holes 30121.

[0140] When installing two adjacent connecting plates 301, the first flange 3012 is placed on the second flange 3013, which makes the contact surface of the first flange 3012 and the second flange 3013 form a sealing surface. An effective waterproof barrier is built at the connection of the two adjacent connecting plates 301, which can prevent rainwater from entering from the gap between the two connecting plates 301 and prevent rainwater from further penetrating into the interior of the cabin 1.

[0141] Furthermore, multiple mounting holes 30121 are correspondingly formed on the first flange 3012 and the second flange 3013, and are connected by fasteners to fix the two adjacent connecting plates 301. Multiple fasteners can evenly distribute the connection force across multiple locations, avoiding stress concentration on a few mounting holes 30121. When an external load is applied to the connecting plate 301, the multiple fasteners can work together to bear and disperse the external force, ensuring a tight connection between adjacent connecting plates 301.

[0142] Specifically, the multiple mounting holes 30121 can be evenly spaced along the length of the first flange 3012, or they can be non-uniformly spaced. In this embodiment, the distribution of the multiple mounting holes 30121 is not specifically limited.

[0143] In one embodiment, such as Figure 6 As shown, it also includes a sealing gasket (not shown in the figure), which is sandwiched between the first flange 3012 and the second flange 3013.

[0144] The mating surfaces of the first flange 3012 and the second flange 3013 can form a certain sealing effect. However, in practical applications, due to factors such as machining accuracy, installation errors, or wear after long-term use, a small gap may appear between the first flange 3012 and the second flange 3013. By setting a sealing gasket between the first flange 3012 and the second flange 3013, the gap can be effectively filled, ensuring that rainwater cannot seep in from the connection between adjacent connecting plates 301.

[0145] Specifically, the sealing gasket can be made of rubber sealing strips, silicone sealing strips, etc. In this embodiment, no specific limitation is made on the type of sealing gasket.

[0146] Specifically, the shape of the sealing gasket can be adapted to the shape of the contact surface of the first flange 3012 and the second flange 3013.

[0147] For example, a rubber sealing strip is provided between the first flange 3012 and the second flange 3013. In rainy weather, even if rainwater flows on the surface of the plate assembly 3 or is subjected to water pressure by external forces such as wind, the rubber sealing strip can prevent rainwater from entering the interior of the cabin 1.

[0148] In one embodiment, such as Figure 3 As shown, multiple lifting rings 306 are provided on the outer wall surface 307 of the plate group 3, and the multiple lifting rings 306 are spaced apart.

[0149] When installing the transition connection device, multiple lifting rings 306 provide convenient connection points for lifting operations. Workers can use ropes, hooks and other tools to lift the plate assembly 3 through the lifting rings 306 and accurately place it in the corresponding position of the cabin 1.

[0150] According to an embodiment of the present invention, on the other hand, as... Figures 1 to 9 As shown, this application also provides a rainproof device for a wind turbine, including a transition connection device and a rain shield 2.

[0151] Specifically, such as Figure 1 and Figure 2 As shown, the wind turbine has a nacelle 1, and the plate assembly 3 is detachably mounted on the nacelle 1.

[0152] Specifically, in combination Figures 1 to 5 As shown, the rain cover 2 is detachably mounted on the second connector 5.

[0153] The rainproof device of this wind turbine is made by installing a transition connection device on the nacelle 1, and then fixing the rainproof component 2 with the second connector 5 on the transition connection device, so as to ensure that the rainproof component 2 is firmly installed on the nacelle 1. The operation is simple and efficient, which improves the convenience of on-site construction.

[0154] Specifically, the cabin is formed by splicing two parts: the cabin seat 1 and the hatch. When installing the cabin, the cabin seat 1 is installed first, and then the hatch is placed on the cabin seat 1.

[0155] In one embodiment, such as Figure 9 As shown, the rainproof component 2 has an inner rainproof layer 201 and an outer rainproof layer 202 on one side. The inner rainproof layer 201 is connected to the hanging part of the inner wall surface 308 of the panel assembly 3, and the outer rainproof layer 202 is attached to the outer wall surface 307 of the panel assembly 3.

[0156] By setting one side of the rainproof component 2 as the inner rainproof layer 201 and the outer rainproof layer 202, and connecting the inner rainproof layer 201 to the hook on the inner wall surface 308 of the panel 3, the connection between the rainproof component 2 and the panel 3 is ensured to be firm, so that the rainproof component 2 can better resist the action of external forces such as wind. When encountering strong winds, the connection point of the inner rainproof layer 201 can effectively disperse the pulling force of the wind on the rainproof component 2, prevent the rainproof component 2 from being blown up or moved by the wind, and ensure that the rainproof component 2 can still tightly cover the panel 3 under the action of wind.

[0157] The rain-shielding outer layer 202 is attached to the outer wall surface 307 of the panel assembly 3, allowing rainwater to flow quickly along the rain-shielding outer layer 202 to the drainage groove 304 on the panel assembly 3. The attachment of the rain-shielding outer layer 202 can reduce the gap at the connection between the rain-shielding component 2 and the panel assembly 3, which helps to guide the flow direction of rainwater, prevents rainwater from accumulating on the surface of the panel assembly 3 or seeping into the connection gap between the panel assembly 3 and the rain-shielding component 2, and enhances the overall waterproof performance.

[0158] The installation principle of the rainproof device for the wind turbine in this embodiment is described as follows:

[0159] 1. First, install the transition connection device on cabin 1:

[0160] The first connector 4 of the transition connection device is provided with an overlapping flange 401. By placing the overlapping flange 401 in the water guide groove 101 of the cabin 1, the relative position of the transition connection device and the cabin 1 is initially determined, providing a basis for subsequent fastening connection.

[0161] Because connecting flanges 403 are provided on the inner wall surface 308 of the end connecting plates 3011 located at both ends of the plate group 3. During installation, the connecting flanges 403 are aligned with the corresponding connecting parts on the cabin 1, and then fasteners (such as bolts, nuts, etc.) are used to detachably connect the connecting flanges 403 to the cabin 1, ensuring that both ends of the transition connection device are firmly installed on the cabin 1.

[0162] The flexible cable connector 402 is connected to the corresponding connection point on the cabin 1 by the flexible cable, which further ensures that the transition connection device is firmly fixed on the cabin 1.

[0163] 2. Install the rain cover 2 onto the transition connection device:

[0164] The rainproof outer layer 202 of the rainproof component 2 is attached to the outer wall surface 307 of the panel assembly 3. During the attachment process, ensure that the rainproof outer layer 202 is in close contact with the outer wall surface 307 of the panel assembly 3 so that rainwater can flow smoothly along the surface of the rainproof outer layer 202 to the drainage channel 304.

[0165] The inner rainproof layer 201 is connected to the hanging brackets on the inner wall of the panel assembly 3. Multiple hanging brackets are provided on the inner wall surface 308 of the panel assembly 3 near the second side 303, spaced apart along the length of the panel assembly 3, for connecting the tightening ropes of the inner rainproof layer 201. During installation, the tightening ropes of the inner rainproof layer 201 are connected to the hanging brackets; for example, the tightening ropes are passed through the hanging brackets and then pulled tight and secured.

[0166] The terms "upper" and "lower" are used to describe the relative positions of the various structures in the accompanying drawings. They are only for clarity of description and are not intended to limit the scope of implementation of this application. Any changes or adjustments to the relative positions without substantially altering the technical content shall also be considered within the scope of implementation of this application.

[0167] It should be noted that, in this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" 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.

[0168] Furthermore, in this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "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 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 application according to the specific circumstances.

[0169] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this disclosure. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0170] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application 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. Such 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 application.

Claims

1. A transition connection device for a wind turbine generator, connected to a nacelle (1) to allow a rain cover (2) to be connected to the nacelle (1) via the transition connection device, characterized in that, The transition connection device includes: Plate group (3); The first connector (4) is provided on the plate assembly (3) and is used for detachable connection with the cabin (1); The second connector (5) is disposed on the plate assembly (3) and is used to connect the rain cover (2).

2. The transition connection device according to claim 1, characterized in that, The plate group (3) includes multiple connecting plates (301), which are arranged sequentially along the length of the plate group (3), and any two adjacent connecting plates (301) can be detachably connected.

3. The transition connection device according to claim 2, characterized in that, The first connector (4) includes an overlapping flange (401); The panel assembly (3) has a first side (302) connected to the cabin (1) and a second side (303) opposite to the first side (302). The overlapping flange (401) is provided on the first side (302) of the panel assembly (3). The overlapping flange (401) extends along the length direction of the panel assembly (3) and bends towards the inner wall surface (308) of the panel assembly (3) from the outer wall surface (307) of the panel assembly (3). The overlapping flange (401) is used to hang in the water guide groove (101) of the cabin (1).

4. The transition connection device according to claim 3, characterized in that, The first connector (4) also includes a plurality of flexible cable connectors (402); Multiple flexible cable connectors (402) are spaced apart along the length of the plate group (3); the flexible cable connectors (402) are provided on the inner wall surface (308) of the plate group (3), and the flexible cable connectors (402) are used for detachable connection with the cabin (1) via flexible cables.

5. The transition connection device according to any one of claims 2 to 4, characterized in that, The first connector (4) further includes a connecting flange (403); The connecting plates (301) at both ends of the plate group (3) are end connecting plates (3011). The connecting flange (403) is provided on the inner wall surface of the end connecting plate (3011). The connecting flange (403) extends along the width direction of the plate group (3). From the outer wall surface (307) of the plate group (3) to the inner wall surface (308) of the plate group (3), the connecting flange (403) bends toward the inner wall surface (308) of the plate group (3). The connecting flange (403) is detachably connected to the cabin (1) by fasteners.

6. The transition connection device according to claim 3, characterized in that, The second connector (5) includes a plurality of hooks spaced apart along the length of the plate group (3). The hooks are located on the inner wall surface (308) of the plate group (3) and close to the second side (303). The hooks are used to connect the tightening rope of the rain cover (2).

7. The transition connection device according to claim 3, characterized in that, The outer wall surface of the plate group (3) is provided with a drainage groove (304) extending along the length direction of the plate group (3), and the drainage groove (304) is located on the second side (303) near the plate group (3); Along the length of the plate assembly (3), from the middle area of ​​the drainage channel (304) to both ends of the drainage channel (304), at least part of the drainage channel (304) is inclined downward.

8. The transition connection device according to claim 7, characterized in that, The drainage trough (304) includes a horizontal section (3041) and two inclined sections (3042) located at both ends of the horizontal section (3041) along its length. The inclined sections (3042) are connected to the horizontal section (3041) and are inclined downward along one end of the horizontal section (3041).

9. The transition connection device according to any one of claims 2 to 4, characterized in that, One of any two adjacent connecting plates (301) is provided with a first flange (3012), and the other connecting plate (301) is provided with a second flange (3013) corresponding to the first flange (3012). The first flange (3012) and the second flange (3013) are detachably connected.

10. The transition connection device according to claim 9, characterized in that, The first flange (3012) is mounted on the second flange (3013). Both the first flange (3012) and the second flange (3013) are provided with a plurality of mounting holes (30121). The first flange (3012) is connected to the second flange (3013) by fasteners passing through the mounting holes (30121).

11. The transition connection device according to claim 9, characterized in that, It also includes a sealing gasket sandwiched between the first flange (3012) and the second flange (3013).

12. The transition connection device according to any one of claims 1 to 4, characterized in that, Multiple lifting rings (306) are spaced apart on the outer wall surface (307) of the plate assembly (3).

13. A rainproof device for a wind turbine, the wind turbine having a housing (1), characterized in that, include: The transition connection device according to any one of claims 1 to 12, wherein the plate assembly (3) is detachably disposed on the cabin (1); The rain cover (2) is detachably mounted on the second connector (5).

14. The rainproof device for a wind turbine generator according to claim 13, characterized in that, The rainproof component (2) has an inner rainproof layer (201) and an outer rainproof layer (202) on one side. The inner rainproof layer (201) is connected to the hanging part of the inner wall surface (308) of the panel assembly (3), and the outer rainproof layer (202) is attached to the outer wall surface (307) of the panel assembly (3).

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