Wind turbine blade conductive detection assembly and device

Abstract

This application provides a conductivity detection component and device for wind turbine blades, which can replace manual operation to detect the conductivity performance of the lightning rods on wind turbine blades, realizing intelligent detection of the conductivity performance of the lightning rods on wind turbine blades. The conductivity detection component includes: a fixing structure for mounting the conductivity detection component to a movable platform; a support plate disposed on the side of the fixing structure facing the working surface in a first direction and movably connected to the fixing structure, the first direction intersecting the working surface; and flexible bristles disposed on the side of the support plate facing the working surface in the first direction.

Description

Technical Field

[0001] This application relates to the field of wind power, and more specifically, to a conductive detection component and device for wind turbine blades. Background Technology

[0002] Wind energy, as an important clean and renewable energy source, is developing rapidly worldwide. Wind turbines, as its core conversion equipment, are typically located in open areas with abundant wind power. Because wind turbines are usually quite tall, they are more likely to be struck by lightning. To reduce the damage from lightning strikes, metal lightning arresters are usually installed on the blades of wind turbines, which use built-in conductors to divert the lightning current to the turbine's grounding system.

[0003] However, lightning arresters are exposed to harsh environments for extended periods, making their surfaces susceptible to oxidation and corrosion. This can lead to increased resistance or even failure, severely impacting the reliability of lightning protection. Therefore, it is necessary to periodically test the conductivity of lightning arresters. Traditional testing methods require workers to operate at heights, posing significant safety risks. Therefore, finding a way to replace manual labor in testing the conductivity of lightning arresters on wind turbine blades remains a problem that needs to be solved. Summary of the Invention

[0004] This application provides a conductive detection component and device for wind turbine blades, which can replace manual operation to detect the conductivity of the lightning rods of wind turbine blades, and realize intelligent detection of the conductivity of the lightning rods of wind turbine blades.

[0005] In a first aspect, a conductive detection component for wind turbine blades is provided, comprising: a fixing structure for mounting the conductive detection component to a movable platform; a support plate disposed on the side of the fixing structure facing the working surface in a first direction and movably connected to the fixing structure, the first direction intersecting the working surface; and flexible bristles disposed on the side of the support plate facing the working surface in the first direction.

[0006] Through the movable connection between the support plate and the fixed structure, the support plate can adaptively adjust according to the shape of the working surface. At the same time, the flexible brush fills the gap between the support plate and the working surface, so that the conductivity detection device can fully contact the lightning rod on the blade. Even if there is a certain error gap between the conductivity detection component and the lightning rod during aerial operation, the flexible brush can also adaptively adjust, improving the stability of conductivity detection.

[0007] In some embodiments, the conductivity detection component includes a connecting portion disposed between the fixing structure and the support plate for connecting the fixing structure and the support plate.

[0008] The connecting part allows the fixed structure and the support plate to be detachable, which facilitates the installation or replacement of parts and also provides adjustment space for the support plate.

[0009] In some embodiments, the connecting portion includes a rotary joint, through which the support plate rotates relative to the fixed structure.

[0010] The rotary joint provides rotational freedom for the support plate. When the flexible bristles on the support plate come into contact with the working surface, they push the support plate to adapt to the shape of the working surface, thereby improving the adaptability of the support plate to the working surface and thus improving the accuracy of the conductivity detection component in detecting the conductivity performance of the lightning arrester.

[0011] In some embodiments, the connecting portion has a first through hole at one end facing the support plate in the first direction, the first through hole penetrating the connecting portion in a second direction perpendicular to the first direction; the conductive detection component includes: a protrusion disposed on one side of the support plate facing the fixing structure in the first direction, the protrusion having a second through hole penetrating the protrusion in the second direction; and a fixing portion passing through the first through hole and the second through hole.

[0012] The connection between the connecting part and the support plate is achieved by the fixing part passing through the first through hole and the second through hole, which enables quick assembly and disassembly between the support plate and the connecting part.

[0013] In some embodiments, there is a gap between the fixing part and the inner wall of the second through hole.

[0014] The gap between the fixed part and the inner wall of the second through hole allows the protrusion to still have a certain amount of room to move under the restriction of the fixed part. The support plate can be finely adjusted within the range of the room to adapt to the shape of the working surface and improve the detection effect.

[0015] In some embodiments, the connecting portion includes a sleeve and a connecting rod, the sleeve and the connecting rod being sleeved onto each other.

[0016] The sleeve and connecting rod can move relative to each other, adjusting the distance between the support and the fixed structure. As the support moves toward the working surface, it reduces the impact force of the support on the wind turbine blades and also reduces the impact of the reaction force exerted by the working surface on the support on the fixed structure, thereby improving the service life of the conductive detection components.

[0017] In some embodiments, the connecting portion includes an elastic element disposed between the support plate and the fixing structure.

[0018] The elastic element can provide elastic support for the support plate. When the support plate is close to the working surface, the elastic element can make the support plate exert a certain pressure on the working surface, so that the flexible bristles can make full contact with the lightning arrester on the working surface, which is beneficial to improving the accuracy of conductivity detection.

[0019] In some embodiments, the sleeve includes a hollow structure with at least one open end, at least a portion of the connecting rod is accommodated in the hollow structure, the elastic element is accommodated in the hollow structure of the sleeve, and one end of the elastic element abuts against the connecting rod.

[0020] The elastic element is placed inside the sleeve, which saves space and simplifies the overall structure. The elastic element is not easily affected by the external environment and can stably provide elastic force to the connecting rod, which is conducive to the full contact between the flexible bristles and the working surface.

[0021] In some embodiments, the conductive detection component includes at least three of the connecting portions, and the at least three connecting portions are not on the same plane.

[0022] At least three moving parts can form at least three points of stable support on the support plate, improving the stability of the contact between the support plate and the working surface.

[0023] In a second aspect, a conductivity detection device is provided, comprising: a movable platform; and a wind turbine blade conductivity detection component as described in any embodiment of the first aspect, wherein the conductivity detection component is mounted on the movable platform. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of a wind turbine blade conductivity detection component provided in this application.

[0025] Figure 2 This is an exploded structural diagram of a wind turbine blade conductivity detection component provided in this application.

[0026] Figure 3 yes Figure 1 Part A and Figure 2 A magnified structural diagram of part B in the diagram.

[0027] Figure 4 yes Figure 1 A schematic diagram of a cross-sectional structure of a connecting part in the CC direction.

[0028] Figure 5 yes Figure 1 Another cross-sectional view of a connecting part in the CC direction.

[0029] Figure 6 This is a schematic diagram of the structure of a conductivity detection device provided in this application.

[0030] Reference numerals: 1. Conductivity detection component; 10. Fixing structure; 2. Conductivity detection device; 20. Support plate; 201. Movable platform; 30. Flexible bristles; 40. Connecting part; 41. First through hole; 42. Sleeve; 43. Connecting rod; 44. Elastic element; 50. Protrusion; 51. Second through hole; 60. Fixing part. Detailed Implementation

[0031] The embodiments of this application will be described in further detail below with reference to the accompanying drawings and examples. The detailed description of the following embodiments and the accompanying drawings are used to illustrate the principles of this application by way of example, but should not be used to limit the scope of this application, that is, this application is not limited to the described embodiments.

[0032] In the description of this application, it should be noted that the terms "upper," "lower," "left," "right," "inner," and "outer," etc., indicating orientation or positional relationships, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first," "second," and "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. "Vertical" is not strictly vertical, but within the allowable error range. "Parallel" is not strictly parallel, but within the allowable error range. All technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used in the specification of this application is only for the purpose of describing specific embodiments and is not intended to limit this application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing description of the drawings of this application are intended to cover non-exclusive inclusion.

[0033] The directional terms used in the following description refer to the directions shown in the figures and are not intended to limit the specific structure of this application. It should also be noted in the description of this application that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0034] In this application, the reference to "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a mutually exclusive, independent, or alternative embodiment. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described in this application can be combined with other embodiments.

[0035] In this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three possibilities: A exists, A and B exist, and B exists. Additionally, in this application, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0036] In this application, "multiple" refers to two or more (including two), and similarly, "multiple groups" refers to two or more (including two), and "multiple pieces" refers to two or more (including two).

[0037] In the embodiments of this application, the same reference numerals denote the same components, and for the sake of brevity, detailed descriptions of the same components are omitted in different embodiments. It should be understood that the thickness, length, width, and other dimensions of various components in the embodiments of this application shown in the accompanying drawings, as well as the overall thickness, length, width, and other dimensions of the integrated device, are merely illustrative and should not constitute any limitation on this application.

[0038] This application provides a conductivity detection component 1, which can be used to detect the conductivity performance of the lightning arrester on a wind turbine blade, such as... Figure 1 As shown, the conductive detection component 1 includes a fixed structure 10, a support plate 20, and flexible bristles 30.

[0039] The fixed structure 10 is used to install the conductive detection component 1 onto the movable platform 201. The support plate 20 is disposed on the side of the fixed structure 10 facing the working surface in the first direction X and is movably connected to the fixed structure 10. The first direction X intersects the working surface. Flexible bristles 30 are disposed on the side of the support plate 20 facing the working surface in the first direction X.

[0040] The fixed structure 10 refers to the structure in the conductivity detection component 1 used to connect with the movable platform 201. The movable platform 201 can refer to equipment such as a drone, robotic arm, or vehicle that can move the conductivity detection component 1 to the vicinity of the lightning arrester on the wind turbine blade. The fixed structure 10 is connected to the movable platform 201 and moves to the working surface under the drive of the movable platform 201 to perform conductivity detection.

[0041] The working surface refers to the working area of ​​the conductivity detection component 1. In this embodiment, the working surface can be, for example, the surface of a wind turbine blade. Specifically, if the lightning arrester is disposed on the surface of the wind turbine blade, the working range of the conductivity detection component 1 can include the area on the surface of the wind turbine blade where the lightning arrester is disposed. The surface of a wind turbine blade is usually not an ideal plane, and the area occupied by the lightning arrester on the surface of the wind turbine blade is very small. Therefore, the area near the lightning arrester can be approximated as a plane.

[0042] The support plate 20 is movably connected to the fixed structure 10, meaning that the support plate 20 can be adjusted relative to the fixed structure 10 within a certain range. For example, when the conductive detection component 1 moves towards the working surface until the flexible bristles 30 on the support plate 20 contact the working surface, the support plate 20 can adaptively adjust according to the actual orientation of the working surface, making the plane of the support plate 20 as parallel as possible to the working surface, so that the flexible bristles 30 at various positions on the support plate 20 can contact the working surface as evenly as possible.

[0043] The flexible bristles 30 can be made of conductive metal, which can deform when squeezed, while also having a certain degree of hardness, and can provide a certain support on the working surface.

[0044] Through the movable connection between the support plate 20 and the fixed structure 10, the support plate 20 can adaptively adjust according to the shape of the working surface. At the same time, the flexible brush 30 fills the gap between the support plate 20 and the working surface, so that the conductivity detection device 2 can fully contact the lightning rod on the blade. Even if there is a certain error gap between the conductivity detection component 1 and the lightning rod during aerial operation, the flexible brush can also achieve adaptive adjustment, improving the stability of conductivity detection.

[0045] According to some embodiments of this application, the conductive detection component 1 includes a connecting part 40, which is disposed between the fixing structure 10 and the support plate 20 for connecting the fixing structure 10 and the support plate 20.

[0046] In some embodiments, the connecting part 40 may be fixedly connected to the fixed structure 10 at one end and movably connected to the support plate 20 at the other end; or it may be movably connected to the fixed structure 10 at one end and fixedly connected to the support plate 20 at the other end; or it may be movably connected to the fixed structure 10 and the support plate 20 at both ends respectively.

[0047] The connecting part 40 allows the fixed structure 10 and the support plate 20 to be detachable, which facilitates the installation or replacement of parts and also provides adjustment space for the support plate 20.

[0048] According to some embodiments of this application, in one specific implementation, the connecting part 40 includes a rotary joint (not shown in the figure), and the support plate 20 rotates relative to the fixed structure 10 through the rotary joint.

[0049] Rotational joints can be structures that rotate around an axis or joint structures that rotate at multiple angles, such as ball joints.

[0050] The rotary joint provides rotational freedom for the support plate 20. When the flexible bristles 30 on the support plate 20 come into contact with the working surface, they push the support plate 20 to adapt to the shape of the working surface, thereby improving the adaptability of the support plate 20 to the working surface and thus improving the accuracy of the conductivity detection component 1 in detecting the conductivity performance of the lightning arrester.

[0051] According to some embodiments of this application, the connecting portion 40 has a first through hole 41 at one end facing the support plate 20 in the first direction X. The first through hole 41 penetrates the connecting portion 40 along the second direction Y, which is perpendicular to the first direction X. The conductive detection assembly 1 also includes a protrusion 50 and a fixing portion 60. The protrusion 50 is disposed on the side of the support plate 20 facing the fixing structure 10 in the first direction X. The protrusion 50 has a second through hole 51, which penetrates the protrusion 50 along the second direction Y. The fixing portion 60 passes through the first through hole 41 and the second through hole 51.

[0052] Figure 2 What is shown is Figure 1 An exploded view of the conductivity detection component 1 in the diagram. (See attached diagram.) Figure 1 and Figure 2 As shown, the protrusion 50 protrudes from the support plate 20 along the first direction X. The protrusion 50 is used to connect the support plate 20 and the connecting part 40. The connecting part 40 and the protrusion 50 are respectively provided with holes for connection, namely the first through hole 41 on the connecting part 40 and the second through hole 51 on the protrusion 50.

[0053] One end of the connecting part 40 is fixedly connected to the fixed structure 10, and the other end is movably connected to the support plate 20 through the protrusion 50. The end of the connecting part 40 connected to the support plate 20 is provided with a first through hole 41. The first through hole 41 penetrates the connecting part 40 along the second direction Y, wherein the second direction Y is perpendicular to the first direction X.

[0054] In some embodiments, the conductivity detection component 1 may include a plurality of connecting portions 40, and the through-holes 41 on the plurality of connecting portions 40 may have different through-directions. Specifically, the through-direction of each first through-hole 41 is perpendicular to the first direction X, and the through-directions of different first through-holes 41 may be the same or different. Therefore, the second direction Y shown in the figure is only an example.

[0055] Correspondingly, a second through hole 51 is provided on the protrusion 50. The through direction of the second through hole 51 is the same as that of the first through hole 41. That is to say, the through directions of the through holes on the protrusion 50 and the connecting part 40 are the same.

[0056] In some embodiments, multiple protrusions 50 may be arranged in the second direction Y. For example, two protrusions 50 may be provided, and one end of the connecting portion 40 with the first through hole 41 is disposed in the gap between the two protrusions 50.

[0057] In other embodiments, the conductivity detection component 1 includes a plurality of connecting portions 40, and a plurality of protrusions 50 may be distributed on the support plate 20, with each connecting portion 40 corresponding to one or more protrusions 50. The second through holes 51 on one or more protrusions 50 corresponding to the same connecting portion 40 have the same through direction, while the second through holes 51 on protrusions 50 corresponding to different connecting portions 40 may have the same or different through directions.

[0058] The fixing part 60 refers to the structure used to connect the connecting part 40 and the protrusion 50 together, such as Figure 2 As shown, the fixing part 60 can be an elongated structure that extends through both the first through hole 41 and the second through hole 51. When there are two protrusions 50, the fixing part 60 can achieve a movable connection between the support plate 20 and the connecting part 40 by engaging the connecting part 40 between the two protrusions 50, thereby achieving a movable connection between the support plate 20 and the fixing structure 10. In some embodiments, the fixing part 60 can be, for example, a pin shaft.

[0059] The connection between the connecting part 40 and the support plate 20 is achieved by the fixing part 60 passing through the first through hole 41 and the second through hole 51, which enables quick assembly and disassembly between the support plate 20 and the connecting part 40.

[0060] According to some embodiments of this application, there is a gap between the fixing part 60 and the inner wall of the second through hole 51.

[0061] like Figure 3 As shown, Figure 3 (a) in the middle is Figure 1 An enlarged structural diagram of part A in the diagram. Figure 3 (b) in the middle is Figure 2 An enlarged structural diagram of part B in the diagram, wherein, Figure 3 Image (a) shows the connection part 40, the protrusion 50, and the fixing part 60 assembled together. Figure 3 (b) shows the structure before the protrusion 50 is installed with the connecting part 40 and the protrusion 50.

[0062] from Figure 3As can be seen, the cross-sectional shape of the second through hole 51 in the plane perpendicular to the second direction Y can cover the cross-sectional shape of the fixing part 60 in the plane perpendicular to the second direction Y. That is to say, when the fixing part 60 passes through the second through hole 51, there is a certain gap inside the second through hole 51, and the fixing part 60 can move or rotate inside the second through hole 51.

[0063] The gap between the fixing part 60 and the inner wall of the second through hole 51 allows the protrusion 50 to still have a certain amount of room to move under the restriction of the fixing part 60. The support plate 20 can be finely adjusted within the range of the room to adapt to the shape of the working surface and improve the detection effect.

[0064] According to some embodiments of this application, the connecting part 40 includes a sleeve 42 and a connecting rod 43, which are sleeved together.

[0065] Figure 1 The conductivity detection component 1 shown includes multiple connecting parts 40. Figure 4 This is a schematic cross-sectional view of one of the connecting parts 40. For example, it can be seen from... Figure 1 The cross-sectional structure of the connector 40 is shown in the CC direction.

[0066] like Figure 4 As shown, the connecting portion 40 extends entirely along the first direction X, and the sleeve 42 and the connecting rod 43 also extend along the first direction X respectively. One end of the sleeve 42 along the first direction X is connected to the fixed structure 10, and the other end has an opening, forming a hollow structure with one open end. One end of the connecting rod 43 along the first direction X is movably connected to the support plate 20, and at least a portion of the connecting rod 43 is accommodated in the hollow structure of the sleeve 42 and is movable relative to the sleeve 42 in the first direction X. In some embodiments, a first through hole 41 is provided at the end of the connecting rod 43 that is movably connected to the support plate 20.

[0067] The sleeve 42 and the connecting rod 43 can move relative to each other to adjust the distance between the support and the fixed structure 10. During the process of the support moving towards the working surface, the impact force of the support on the wind turbine blade is reduced, and the impact of the reaction force exerted by the working surface on the support on the fixed structure 10 is also reduced, thereby improving the service life of the conductive detection component 1.

[0068] According to some embodiments of this application, the connecting portion 40 includes an elastic element 44, which is disposed between the support plate 20 and the fixing structure 10.

[0069] Figure 5 A structure of a connecting portion 40 provided with an elastic element 44 is shown, such as Figure 5As shown, the elastic element 44 can be disposed between the support plate 20 and the fixed structure 10, providing elastic force during the relative movement of the support plate 20 and the fixed structure 10 along the first direction X, pushing the support plate 20 toward the working surface, so that the flexible bristles 30 on the support plate 20 can generate a certain pressure on the working surface.

[0070] The elastic element 44 can provide elastic support for the support plate 20. When the support plate 20 is close to the working surface, the elastic element 44 can make the support plate 20 exert a certain pressure on the working surface, so that the flexible bristles 30 can fully contact the lightning arrester on the working surface, which is beneficial to improving the accuracy of conductivity detection.

[0071] In some embodiments, the two ends of the elastic member 44 along the first direction X can respectively abut against the fixed structure 10 and the support plate 20. In other embodiments, the elastic member 44 can abut against the structure of the connecting portion 40. For example, one end of the elastic portion can abut against the sleeve 42 and the other end can abut against the support plate 20; as another example, one end of the elastic portion can abut against the fixed structure 10 and the other end can abut against the connecting rod 43.

[0072] In one specific implementation, such as Figure 5 As shown, the elastic element 44 is housed in the hollow structure of the sleeve 42, and one end of the elastic element 44 abuts against the bottom of the sleeve 42, while the other end abuts against the connecting rod 43.

[0073] In some embodiments, the sleeve 42 may be a hollow structure with openings at both ends, in which case one end of the elastic member 44 may directly abut against the fixed structure 10.

[0074] The elastic element 44 is located inside the sleeve 42, which saves space and simplifies the overall structure. Moreover, the elastic element 44 is not easily affected by the external environment and can stably provide elastic force to the connecting rod 43, which is conducive to the flexible bristles 30 making full contact with the working surface.

[0075] According to some embodiments of this application, the conductive detection component 1 includes at least three connecting portions 40, and the at least three connecting portions 40 are not on the same plane.

[0076] like Figure 1 As shown, the conductive detection component 1, including three connecting parts 40, will be described as an example. The three connecting parts 40 form three support points on the support plate 20. The support plate 20 has a certain amount of room for adjustment relative to these three support points. When the support plate 20 is subjected to the force of the working surface, it can be adaptively adjusted within the adjustment range of this room according to the actual situation of the working surface, so that the surface of the support plate 20 facing the working surface can be as parallel as possible to the working surface, thereby enabling the flexible bristles 30 to make uniform contact with the working surface.

[0077] The projections of at least three connecting parts 40 onto any plane are not coincident, or in other words, in the first direction X, at least three straight lines passing through the centroids of at least three connecting parts 40 are not coplanar. Since the support points formed by at least three connecting parts 40 on the support plate 20 are not on the same straight line, the at least three support points can limit the degrees of freedom of the support plate 20 in multiple directions, forming a stable support.

[0078] At least three moving parts can form at least three points of stable support on the support plate 20, improving the stability of the contact between the support plate 20 and the working surface.

[0079] This application also provides a wind turbine blade conductivity detection device 2, such as... Figure 6 As shown, it includes a movable platform 201 and a conductive detection component 1, with the conductive detection component 1 mounted on the movable platform 201.

[0080] Specifically, the movable platform 201 can be connected to the fixed structure 10. By moving the movable platform 201, the conductive detection component 1 can be moved to the vicinity of the lightning rod of the wind turbine blade, so that the flexible bristles 30 of the conductive detection component 1 can make full contact with the lightning rod, thereby realizing intelligent detection of the conductivity performance of the lightning rod of the wind turbine blade.

[0081] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A wind turbine blade electrical conductivity detection assembly, characterized in that, include: A fixing structure (10) is used to mount the conductive detection component (1) to the movable platform (201); A support plate (20) is disposed on the side of the fixing structure (10) facing the working surface in the first direction (X) and is movably connected to the fixing structure (10). The first direction (X) intersects with the working surface. Flexible bristles (30) are disposed on the side of the support plate (20) facing the working surface in the first direction (X).

2. A wind turbine blade electrical conductivity detection assembly according to claim 1, characterised in that, The conductivity detection component (1) includes: A connecting part (40) is disposed between the fixing structure (10) and the support plate (20) for connecting the fixing structure (10) and the support plate (20).

3. The wind turbine blade conductivity detection component according to claim 2, characterized in that, The connecting part (40) includes a rotary joint, and the support plate (20) rotates relative to the fixed structure (10) via the rotary joint.

4. The wind turbine blade electrical conductivity detection assembly of claim 2, wherein, The connecting part (40) has a first through hole (41) at one end facing the support plate (20) in the first direction (X). The first through hole (41) passes through the connecting part (40) in the second direction (Y). The second direction (Y) is perpendicular to the first direction (X). The conductivity detection component (1) includes: A protrusion (50) is provided on the side of the support plate (20) facing the fixing structure (10) in the first direction (X). The protrusion (50) has a second through hole (51) that penetrates the protrusion (50) in the second direction (Y). The fixing part (60) passes through the first through hole (41) and the second through hole (51).

5. The wind turbine blade conductivity detection component according to claim 4, characterized in that, There is a gap between the fixing part (60) and the inner wall of the second through hole (51).

6. The wind turbine blade conductivity detection assembly according to any one of claims 2 to 5, characterized in that, The connecting part (40) includes a sleeve (42) and a connecting rod (43), which are sleeved together.

7. The wind turbine blade conductivity detection component according to claim 6, characterized in that, The connecting part (40) includes an elastic element (44), which is disposed between the support plate (20) and the fixing structure (10).

8. The wind turbine blade conductivity detection component according to claim 7, characterized in that, The sleeve (42) includes a hollow structure with at least one open end, at least a portion of the connecting rod (43) is accommodated in the hollow structure, the elastic element (44) is accommodated in the hollow structure of the sleeve (42), and one end of the elastic element (44) abuts against the connecting rod (43).

9. The wind turbine blade electrical conductivity detection assembly of claim 2, wherein, The conductivity detection component (1) includes: At least three of the connecting parts (40) are not on the same plane.

10. An electrically conductive detection device, characterized in that include: Mobile platform (201); The wind turbine blade conductivity detection component as described in any one of claims 1 to 9, wherein the conductivity detection component (1) is carried on the movable platform (201).

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