A connecting structure of a wind blade

Abstract

The utility model relates to a wind -driven curtain wall technical field discloses a kind of connecting structure of wind -driven blade, comprising: wind -driven blade;Connecting piece horizontal arrangement, wind -driven blade swing setting on connecting piece;Light assembly is detachably arranged at the outside of connecting piece, light assembly has light emitting element, the light emitting direction of light emitting element is towards wind -driven blade, the utility model is by being arranged at the outside of connecting piece, connecting piece and wind -driven blade are connected and fixed, when light assembly appears problem, it can be simply and quickly replaced, light assembly and connecting piece can be detached, without disassembling entire wind -driven blade, greatly reduce maintenance cost and improve maintenance efficiency.

Description

Technical Field

[0001] This utility model relates to the field of wind-driven curtain wall technology, specifically to a connection structure for wind-driven blades. Background Technology

[0002] A wind-driven curtain wall is an architectural device that transforms natural wind power into a dynamic visual language. Through precisely designed metal or flexible material units, it produces regular swaying or rotation under the action of airflow, forming a flowing rhythm of light and shadow.

[0003] Chinese patent document CN219451188U discloses a wind-powered dynamic lighting curtain wall device, comprising: a hollow tube element disposed at the upper end of a wind-driven plate element; a light strip element disposed inside the hollow tube element; and a sliding groove element disposed on a rod element. The hollow tube element is slid along the sliding groove element into the rod element. Then, a slider element is aligned with the sliding groove element, and a splicing unit is nested into the end of the hollow tube element. Finally, a first locking element and a second locking element are fixed by bolts.

[0004] However, when the light strip element is damaged and cannot emit light, it needs to be disassembled. First, the first locking element and the second locking element must be separated, then the hollow tube element must be pulled out from the rod element, and then the light strip element inside the hollow tube element must be separated to replace the new light strip element. The operation is relatively complicated. If there are a large number of damaged light strip elements in the wind-driven curtain wall, the replacement is more cumbersome. Utility Model Content

[0005] In view of this, the present invention provides a connection structure for wind turbine blades to solve the problem that in the prior art, the light strip is set inside the hollow tube element of the wind turbine blade, making it cumbersome to replace the light strip.

[0006] This utility model provides a connection structure for a wind turbine blade, including: a wind turbine blade;

[0007] The connector is horizontally positioned, and the wind turbine blades are oscillatingly mounted on the connector.

[0008] A lighting assembly, detachably disposed on the outside of the connector, the lighting assembly having a light-emitting element whose light-emitting direction is toward the wind turbine blade.

[0009] By placing the lighting components on the outside of the connector, and fixing the connector to the wind turbine blades, the lighting components can be easily and quickly replaced when problems occur. Simply disassemble the lighting components and the connector; there is no need to disassemble the entire wind turbine blades, which greatly reduces maintenance costs and improves maintenance efficiency.

[0010] In one optional embodiment, the lighting assembly has a mounting cavity with openings at both ends along its length, and at least a portion of the connector passes through the mounting cavity.

[0011] By setting mounting cavities with openings at both ends on the lighting assembly, the connector can be inserted into the mounting cavity when installation is required. When the lighting assembly needs to be replaced, the connector can be pulled out of the mounting cavity without any operation on the wind turbine blades themselves, which greatly reduces the difficulty of installation and disassembly.

[0012] In one alternative embodiment, the lighting assembly is provided with at least one limiting member for restricting the axial movement of the connector within the mounting cavity.

[0013] By setting a limiting component, the axial movement of the connector in the mounting cavity is limited, so that when the wind turbine blades swing, the connector and the lighting assembly remain relatively fixed, allowing the light from the lighting assembly to continuously illuminate the wind turbine blades.

[0014] In one alternative embodiment, the limiting member is threadedly connected to the lighting assembly, and the limiting member passes radially through the lighting assembly and abuts against the outer end face of the connecting member.

[0015] By threading the limiting component to the lighting assembly, the limiting component passes through the lighting assembly and abuts against the outer end face of the connector. Tightening the limiting component can adjust the limiting of the connector, thus making it easier to control the tightness of the connection between the connector and the lighting assembly, effectively preventing loosening caused by vibration, and ensuring the stability and reliability of the lighting effect.

[0016] In one alternative embodiment, the upper end of the light assembly extends outward with an arc-shaped hook portion, the arc-shaped hook portion having a downwardly extending opening, the hook portion forming the mounting cavity.

[0017] A hook extends outward in an arc from the upper end of the light assembly, with the wind turbine blades located at the opening. The hook makes the machining of the mounting cavity more convenient. Since the hook extends outward from the upper end of the light assembly, it does not occupy the space of the light assembly.

[0018] In one alternative embodiment, the lighting assembly includes: a housing having a hook portion detachably connected to the connector, and a light-emitting element being provided on one end face of the housing facing the hook portion.

[0019] By setting a housing and a hook on the housing, a light-emitting element is set on the end face of the housing facing the hook. When the hook is hung on the connector, the wind turbine blade is located below the hook. At this time, the light-emitting element shines towards the wind turbine blade, illuminating the wind turbine blade and increasing the brightness of the illumination.

[0020] In one alternative embodiment, the housing has an adapter extending outward in a horizontal direction on the end face facing the hook portion, and the adapter is provided with a power supply assembly for providing power to the light-emitting element.

[0021] By extending horizontally away from the housing through the adapter, power is provided to the light-emitting element while avoiding direct wiring through holes in the housing, thus enhancing the overall safety of the device.

[0022] In one alternative embodiment, the adapter is provided with a clearance groove for avoiding the cable, the clearance groove extending vertically through the cable.

[0023] By setting a clearance groove on the adapter, the cable passes through the clearance groove, preventing the adapter from extending in the opposite direction. This ensures that the cable will not be interfered with by the adapter when it is laid, thus making the entire device more stable and reliable during operation.

[0024] In one optional embodiment, the power supply assembly includes a first power supply component and a second power supply component, the first power supply component and the second power supply component being respectively disposed on the upper end face and the lower end face of the adapter, and the first power supply component and the second power supply component being used for external electrical connection.

[0025] During installation, since there are multiple lighting components and wind turbine blades along the height direction, the first power supply component of the first lighting component is connected to the second power supply component of the power supply component above the first lighting component, the second power supply component of the first lighting component is connected to the first power supply component of the second lighting component below it, and so on, to achieve cascaded power supply and ensure the stable operation of the entire system.

[0026] In one optional embodiment, the connector is provided with a fixing part, which is located at both ends in the length direction of the connector, and the fixing part is used for detachable connection with the cable.

[0027] By setting a fixing part on the connector, the fixing part is detachably connected to the cable. After fixing, the connector will not rotate, thus keeping the connector relatively fixed. Attached Figure Description

[0028] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0029] Figure 1 This is a perspective view of a connection structure for a wind turbine blade according to an embodiment of the present utility model;

[0030] Figure 2 for Figure 1 The main view of the lighting components shown;

[0031] Figure 3 for Figure 2 The right view of the lighting components in the image;

[0032] Figure 4 for Figure 2 A top view of the lighting components;

[0033] Figure 5 for Figure 2 A bottom view of the lighting components in the image;

[0034] Figure 6 for Figure 2 A 3D view of the lighting components;

[0035] Figure 7 for Figure 1 Front view of the connection structure of the wind turbine blades;

[0036] Figure 8 for Figure 7 Rear view of the connection structure of the wind turbine blades;

[0037] Figure 9 for Figure 7 A top view of the connection structure of the wind turbine blades;

[0038] Figure 10 for Figure 7 Right view of the connection structure of the wind turbine blades;

[0039] Figure 11 for Figure 1 A cross-sectional view of the connectors and wind turbine blades.

[0040] Explanation of reference numerals in the attached figures:

[0041] 1. Wind turbine blade; 2. Connector; 3. Lighting assembly; 4. Light-emitting component; 5. Mounting cavity; 6. Limiting component; 7. Hook part; 8. Housing; 9. Clearance groove; 10. First power supply component; 11. Second power supply component; 12. Sleeve; 13. First locking component; 14. Second locking component; 15. Cable; 16. Adapter; 17. Fixing part; 18. Shaft. Detailed Implementation

[0042] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0043] The following is combined with Figures 1 to 10 The following describes embodiments of the present invention.

[0044] like Figure 1 As shown, according to an embodiment of this utility model, a connection structure for a wind turbine blade 1 is provided, including: a wind turbine blade 1, a connector 2, and a lighting assembly 3. The connector 2 is horizontally arranged, and the wind turbine blade 1 is oscillatingly arranged on the lower end face of the connector 2. The lighting assembly 3 is detachably arranged on the outside of the connector 2, and the lighting assembly 3 has a light-emitting element 4. When the lighting assembly 3 is installed on the connector 2, the light-emitting direction of the light-emitting element 4 is towards the wind turbine blade 1. When the lighting assembly 3 is activated, the light emitted by the light-emitting element 4 illuminates the wind turbine blade 1. When the wind blows the wind turbine blade 1, the wind turbine blade 1 oscillates on the connector 2, forming a light and shadow effect of the wind turbine blade 1 oscillating, making it more visually appealing to people.

[0045] By placing the light assembly 3 on the outside of the connector 2 and connecting and fixing the connector 2 to the wind turbine blade 1, when the light assembly 3 malfunctions, it can be easily and quickly replaced by simply disassembling the light assembly 3 and the connector 2, without having to disassemble the entire wind turbine blade 1, which greatly reduces maintenance costs and improves maintenance efficiency.

[0046] like Figure 2 , Figure 3 , Figure 4As shown, in this embodiment, the lighting assembly 3 has a mounting cavity 5 along its length, with openings at both ends. At least a portion of the connector 2 passes through the mounting cavity 5. During installation, the connector 2 is inserted through one opening of the mounting cavity 5, and its lower end is oscillatingly connected to the wind turbine blade 1. When disassembly is required, the connector 2 can be pulled out along the length of the mounting cavity 5, making installation and disassembly relatively convenient. It should be noted that, as an alternative implementation, a connecting plate can also be horizontally extended outward from the outer end face of the connector 2, with the lighting assembly 3 installed at the bottom of the connecting plate, and the light-emitting element 4 of the lighting assembly 3 facing the wind turbine blade 1.

[0047] By setting a mounting cavity 5 with openings at both ends on the lighting assembly 3, when installation is required, the connector 2 can be inserted into the mounting cavity 5. When the lighting assembly 3 needs to be replaced, the connector 2 only needs to be pulled out of the mounting cavity 5, without any operation on the wind turbine blade 1 itself, which greatly reduces the difficulty of installation and disassembly.

[0048] like Figure 4 , Figure 5 , Figure 6 As shown, in this embodiment, the lighting assembly 3 is provided with at least one limiting member 6 to restrict the axial movement of the connecting member 2 within the mounting cavity 5. By setting the limiting member 6, the lighting assembly 3 is prevented from moving along the length of the connecting member 2, ensuring relative fixation between the lighting assembly 3 and the connecting member 2, and allowing the light emitted by the light-emitting element 4 of the lighting assembly 3 to always illuminate the wind turbine blade 1. It should be noted that, as an alternative implementation, the number of limiting members 6 is not limited, and those skilled in the art can modify it according to actual needs; for example, the limiting members 6 can be two, three, etc.

[0049] By setting the limiting component 6, the axial movement of the connecting component 2 in the mounting cavity 5 is limited, so that when the wind turbine blade 1 swings, the connecting component 2 and the light assembly 3 remain relatively fixed, allowing the light from the light assembly 3 to continuously illuminate the wind turbine blade 1.

[0050] like Figure 6As shown, in this embodiment, the limiting member 6 is threadedly connected to the lighting assembly 3. The limiting member 6 passes radially through the lighting assembly 3 along the connector 2 and abuts against the outer end face of the connector 2. Specifically, the limiting member 6 is a bolt. The bolt extends vertically downward from the upper end face of the mounting cavity 5, and the bolt is threadedly connected to the lighting assembly 3. The end of the bolt is tightened and locked to the connector 2 by turning the bolt. When it is necessary to disassemble the lighting assembly 3, the limiting member 6 is loosened, and the lighting assembly 3 can be slid out from one end of the connector 2 along its length. It should be noted that, as an alternative implementation, the limiting member 6 may not be a bolt. Instead, the connector 2 and the mounting cavity 5 of the lighting assembly 3 can be connected by a snap-fit ​​mechanism. When the connector 2 is inserted into the mounting cavity 5, the snap-fit ​​engages and fixes the connector 2 and the lighting assembly 3.

[0051] By threading the limiting member 6 to the lighting assembly 3, the limiting member 6 passes through the lighting assembly 3 and abuts against the outer end face of the connector 2. Tightening or loosening the limiting member 6 adjusts the positioning of the connector 2, thus facilitating control over the tightness of the connection between the connector 2 and the lighting assembly 3. This effectively prevents loosening caused by vibration and ensures the stability and reliability of the lighting effect. It should be noted that in this embodiment, the fan blade 1 is equipped with a heat dissipation structure to enhance the heat dissipation effect of the lighting assembly 3 during operation and extend its service life.

[0052] like Figure 3 , Figure 6 As shown, in this embodiment, an arc-shaped hook portion 7 extends outward from the upper end of the light assembly 3. "Extending outward" refers to the direction away from the light assembly 3. The hook portion 7 is arc-shaped and has a downward-extending opening. "Arch-shaped" means the cross-section of the hook portion 7 is arc-shaped. When the hook portion 7 is installed on the connector 2, the fan blade 1 is rotatably mounted on the connector 2, and the fan blade 1 can swing at the opening position. The hook portion 7 extends outward along an arc from the upper end of the light assembly 3, with the fan blade 1 located at the opening position. The hook portion 7 facilitates the processing of the mounting cavity 5. Since the hook portion 7 extends outward from the upper end of the light assembly 3, it does not occupy space in the light assembly 3. It should be noted that, as an alternative implementation, the hook portion 7 can be omitted, and a concave groove can be provided on the light assembly 3, with openings at both ends, forming the mounting cavity 5. Alternatively, the hook part 7 may not have an opening. After the connector 2 is inserted into the hook part 7, two protrusions extend downward at both ends in the length direction of the connector 2. The two ends above the wind turbine blade 1 are respectively rotatably mounted on the two protrusions.

[0053] like Figure 6As shown, in this embodiment, the lighting assembly 3 includes: a housing 8, on which a hook portion 7 is provided for detachable connection with the connector 2; and a light-emitting element 4 is provided on the side end face of the housing 8 facing the hook portion 7. That is, when the hook portion 7 is installed on the connector 2, the wind turbine blade 1 swings on the lower end face of the connector 2, and the light-emitting element 4 is located on one side of the wind turbine blade 1. When the light-emitting element 4 emits light, it can illuminate the wind turbine blade 1. By setting the housing 8, providing the hook portion 7 on the housing 8, and providing the light-emitting element 4 on the side end face of the housing 8 facing the hook portion 7, when the hook portion 7 is hung on the connector 2, the wind turbine blade 1 is located below the hook portion 7. At this time, the light-emitting direction of the light-emitting element 4 is towards the wind turbine blade 1, illuminating the wind turbine blade 1 and improving the brightness of the illumination. It should be noted that, as an alternative implementation, the lighting assembly 3 may also include: a light sensor, which is mounted on the housing 8 and connected to the light-emitting element 4. When the light sensor detects insufficient brightness, the light-emitting element 4 is turned on to illuminate the wind turbine blade 1. The connection method and working principle of the light sensor are existing designs and will not be described in detail in this application.

[0054] like Figure 2 , Figure 6 As shown, in this embodiment, a horizontally extending adapter 16 is provided on the end face of the housing 8 facing the hook portion 7. A power supply assembly is provided on the adapter 16, which, after being connected to an external power source, provides power to the light-emitting element 4. By extending horizontally away from the housing 8, the adapter 16 ensures power supply to the light-emitting element 4 while avoiding direct wiring through openings in the housing 8, thus enhancing the overall safety of the device. It should be noted that, as an alternative implementation, the adapter 16 can be omitted, and the power supply assembly can be directly provided on the housing 8, or a power storage device can be provided inside the housing 8.

[0055] like Figure 6 As shown, in this embodiment, the adapter 16 is provided with a clearance groove 9 for avoiding the cable 15, and the clearance groove 9 extends vertically through the adapter. The clearance groove 9 is located on the end face of the adapter 16 away from the wind turbine blade 1. The clearance groove 9 is a through groove extending along the height direction and has an opening, through which the cable 15 can enter the clearance groove 9. By providing the clearance groove 9 on the adapter 16, the cable 15 passes through the clearance groove 9, preventing the adapter 16 from extending in the opposite direction. This ensures that the cable 15 will not be interfered with by the adapter 16 during installation, thereby making the entire device more stable and reliable during operation. It should be noted that, as an alternative implementation, the clearance groove 9 may not have an opening. In this case, during installation, one end of the cable 15 needs to pass through the upper end of the clearance groove 9 and then exit from the lower end.

[0056] like Figure 2As shown, in this embodiment, multiple cables 15 are arranged vertically at intervals in the wind-driven curtain wall. Multiple wind turbine blades 1 are installed along the height direction on two adjacent cables 15, and each wind turbine blade 1 requires the installation of a lighting assembly 3. The power supply assembly includes a first power supply component 10 and a second power supply component 11, which are respectively disposed on the upper and lower ends of the adapter 16. The first power supply component 10 and the second power supply component 11 are used for external electrical connection. "External" refers to an external independent power supply or a power socket or other device capable of providing power. During installation, since multiple lighting assemblies 3 and wind turbine blades 1 are arranged along the height direction, assuming one lighting assembly 3 is the first lighting assembly 3, the one adjacent above the first lighting assembly 3 is the second lighting assembly 3, and the one adjacent below the first lighting assembly 3 is the third lighting assembly 3. During installation, the first power supply component 10 of the first lighting assembly 3 is plugged into and connected to the second power supply component 11 of the second lighting assembly 3. The second power supply component 11 of the first lighting assembly 3 is then plugged into and connected to the first power supply component 10 of the third lighting assembly 3 below it, and so on, to achieve cascaded power supply. It should be noted that, as an alternative implementation, the power supply assembly can also be equipped with only one power supply component, which is directly connected to the power supply interface via a wire, without the need to connect adjacent power supply components to an external power supply first.

[0057] like Figure 7 , Figure 8 , Figure 9 , Figure 10 As shown, in this embodiment, the connector 2 is provided with a fixing part 17, which is located at both ends of the connector 2 along its length. The fixing part 17 is used for detachable connection with the cable 15. Specifically, the fixing part 17 is a groove on the connector 2, located on the outer circumferential surface of the connector 2. There are two grooves, located at both ends of the connector 2 along its length. The cable 15 can be placed into the groove. Two bolts are provided at each end of the connector 2, which are threaded to the connector 2. After passing through the connector 2, the bolts abut against the outer circumferential surface of the cable 15 for fixing, thus fixing the connector 2 to the cable 15. By providing the fixing part 17 on the connector 2, the connector 2 is detachably connected to the cable 15. After fixing, the connector 2 will not rotate, maintaining the connection between the connector 2 and the cable 15. It should be noted that, as an alternative implementation, the fixing part 17 can also be a clamp or a gripper.

[0058] Specifically, such as Figure 11As shown, the connecting component 2 includes a sleeve 12, a first locking member 13, and a second locking member 14. The first locking member 13 and the second locking member 14 are respectively installed at both ends of the sleeve 12 along its axial direction. An opening is provided on the lower end face of the sleeve 12, and a rotating shaft 18 is provided on the upper end of the wind turbine blade 1. The rotating shaft 18 is integrally formed with the wind turbine blade 1. The first locking member 13 and the second locking member 14 are threadedly connected to both ends of the sleeve 12. A fixing part 17 is provided on the first locking member 13 and the second locking member 14. During installation, the rotating shaft 18 of the wind turbine blade 1 is inserted into the sleeve 12, and the first locking member 13 and the second locking member 14 are screwed on both ends respectively to ensure that the rotating shaft 18 is securely fixed inside the sleeve 12. The first locking member 13 and the second locking member 14 facilitate the installation and removal of the wind turbine blade 1.

[0059] The installation method of the connection structure of the wind turbine blade 1: Multiple cables 15 are arranged vertically, spaced apart, and the wind turbine blade 1 is installed between two adjacent cables 15. Multiple wind turbine blades 1 are arranged along the height of the cables 15, and a light assembly 3 is installed on each blade. The connector 2 is inserted into the opening at one end of the mounting cavity 5, ensuring that the lower part of the connector 2 is connected to the wind turbine blade 1 in a swinging manner. For disassembly, the connector 2 can be pulled out along the length of the mounting cavity 5; the installation and disassembly process is simple. During installation, first fix the cables 15, then install the wind turbine blade 1 into the connector 2. Align the mounting cavity 5 of the light assembly 3 with the connector 2, insert the connector 2 into the mounting cavity 5 of the light assembly 3, and tighten the locking piece to fix the connector 2. At this time, the wind turbine blade 1 is located in the opening of the hook part 7, and the wind turbine blade 1 can swing at the opening. Next, align the groove of connector 2 with cable 15, ensuring cable 15 is positioned within the groove. Then, tighten the screw to secure cable 15. The light-emitting element 4 of the lighting assembly 3 faces the wind turbine blade 1. The wind turbine blade 1 is made of a lightweight, high-strength alloy. The lighting assembly 3 uses energy-saving LED lights, which can adjust brightness and change color to meet the lighting needs of different scenarios.

[0060] The working principle of the connection structure of the wind turbine blade 1: The connection structure of the wind turbine blade 1 includes the wind turbine blade 1, the connector 2, and the lighting assembly 3. The connector 2 is horizontally positioned, and the wind turbine blade 1 is oscillatingly positioned on the lower end face of the connector 2. The lighting assembly 3 is detachably mounted on the outside of the connector 2, and the lighting assembly 3 has a light-emitting element 4. When the lighting assembly 3 is installed on the connector 2, the light-emitting element 4 emits light towards the wind turbine blade 1, causing the blade to oscillate on the connector 2 when the wind blows, creating a light and shadow effect and enhancing the visual appeal. After the connector 2 is fixedly connected to the wind turbine blade 1, the lighting assembly 3 can be quickly replaced if there is a problem, reducing maintenance costs and improving maintenance efficiency.

[0061] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A connection structure for wind turbine blades, characterized in that, include: Wind-driven blades (1); The connector (2) is horizontally arranged, and the wind turbine blade (1) is oscillatingly arranged on the connector (2); The lighting assembly (3) is detachably disposed on the outside of the connector (2). The lighting assembly (3) has a light-emitting element (4) whose light-emitting direction is toward the wind turbine blade (1).

2. The connection structure of the wind turbine blade according to claim 1, characterized in that, The lighting assembly (3) has a mounting cavity (5) with openings at both ends along its length. The mounting cavity (5) has an opening, and at least a portion of the connector (2) passes through the opening and is snapped into the mounting cavity (5).

3. The connection structure of the wind turbine blade according to claim 2, characterized in that, The lighting assembly (3) is provided with at least one limiting member (6) for restricting the axial movement of the connector (2) within the mounting cavity (5).

4. The connection structure of the wind turbine blade according to claim 3, characterized in that, The limiting member (6) is threadedly connected to the light assembly (3). The limiting member (6) passes through the light assembly (3) radially along the connector (2) and abuts against the outer end face of the connector (2).

5. The connection structure of the wind turbine blade according to claim 2, characterized in that, The upper end of the light assembly (3) is provided with an arc-shaped hook portion (7) extending outward, and the arc-shaped hook portion (7) is provided with a downward extending opening, and the hook portion (7) forms the mounting cavity (5).

6. The connection structure of the wind turbine blade according to any one of claims 1-5, characterized in that, The lighting assembly (3) includes: a housing (8), on which a hook portion (7) is provided for detachable connection with the connector (2), and a light-emitting element (4) is provided on one end face of the housing (8) facing the hook portion (7).

7. The connection structure of the wind turbine blade according to claim 6, characterized in that, The housing (8) has an adapter (16) extending outward in a horizontal direction on the end face facing the hook portion (7), and the adapter (16) is provided with a power supply assembly for providing power to the light-emitting element (4).

8. The connection structure of the wind turbine blade according to claim 7, characterized in that, The adapter (16) is provided with a clearance groove (9) for avoiding the cable (15), and the clearance groove (9) extends vertically through the cable.

9. The connection structure of the wind turbine blade according to claim 7, characterized in that, The power supply assembly includes a first power supply component (10) and a second power supply component (11), which are respectively disposed on the upper and lower end surfaces of the adapter (16). The first power supply component (10) and the second power supply component (11) are used for external electrical connection.

10. The connection structure of the wind turbine blade according to any one of claims 1-5, characterized in that, The connector (2) is provided with a fixing part (17), which is located at both ends of the connector (2) in the length direction. The fixing part (17) is used to detachably connect with the cable (15).

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