A fan blade lightning protection device mounting structure

Abstract

The utility model relates to fan blade technical field, and disclose a kind of fan blade lightning protection device mounting structure, including connecting sleeve, the connecting sleeve left end is provided with connecting cylinder, the connecting cylinder upper end is passed through connecting sleeve and is fixedly connected with connecting sleeve, the connecting sleeve right side is fixedly installed with mounting seat, the connecting sleeve top is fixedly installed with lightning arrester, the connecting sleeve side is equipped with through cavity one, the connecting cylinder inside is equipped with through cavity two, through cavity one and through cavity two are interconnected, the lightning arrester lower end is fixedly installed with copper band, copper band sequentially passes through through cavity one and through cavity two. Through the reasonable combination of connecting sleeve, connecting cylinder, mounting seat and other components, form a complete mounting structure, after lightning arrester receives thunder and lightning, copper band and guide wire form complete current conduction path, can quickly, effectively lead out thunder and lightning current, reduce the damage of thunder and lightning to fan blade.

Description

Technical Field

[0001] This utility model relates to the field of wind turbine blade technology, specifically to an installation structure for a lightning protection device for wind turbine blades. Background Technology

[0002] Wind turbine blades are one of the key core components of wind turbines. Like the wings of a bird, they give wind turbines the ability to capture wind energy and convert it into mechanical energy. In terms of shape, wind turbine blades usually have a unique aerodynamic shape, similar to the streamlined design of an airfoil. This shape allows them to effectively utilize wind power when rotating, reduce air resistance, and improve energy conversion efficiency.

[0003] In thunderstorms, wind turbine blades face a severe threat from lightning. As a powerful and destructive natural phenomenon, lightning can have many adverse effects when it strikes wind turbine blades. The high voltage and high current of lightning can directly strike the blades, and the powerful impact can damage the structural integrity of the blades, causing cracks and perforations on the blade surface, or even causing the blades to break, which seriously affects the normal operation of the wind turbine.

[0004] Therefore, an installation structure for a lightning protection device for wind turbine blades is proposed. Utility Model Content

[0005] The purpose of this utility model is to provide an installation structure for a lightning protection device for wind turbine blades, which solves the technical problem that the high voltage and large current of lightning may directly strike the blades and damage their structural integrity, thereby achieving the goal of diverting the lightning current and reducing the damage of lightning to wind turbine blades.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a wind turbine blade lightning protection device installation structure, including a connecting sleeve, a connecting column is provided at the left end of the connecting sleeve, the upper end of the connecting column passes through the connecting sleeve and is fixedly connected to the connecting sleeve, an installation base is fixedly installed on the right side of the connecting sleeve, and a lightning arrester is fixedly installed on the top surface of the connecting sleeve.

[0007] Preferably, the connecting sleeve has a through cavity one on its side, and the connecting column has a through cavity two inside. The through cavity one and the through cavity two are interconnected. A copper strip is fixedly installed at the lower end of the lightning arrester. The copper strip is sequentially...

[0008] It passes through cavity one and cavity two.

[0009] Preferably, a fixing ring is fixedly sleeved on the outer side of the lower end of the connecting column, a connecting frame is fixedly installed on the left side of the fixing ring, a closing frame is hinged to the left end of the connecting frame, and a buckle is fixedly installed on the front of both the connecting frame and the closing frame.

[0010] Preferably, a connecting seat is fixedly provided on the top surface of the connecting frame, the right end of the connecting seat penetrates through the connecting column and extends into the interior of the connecting column, and the connecting seat is in communication with the through cavity two.

[0011] Preferably, the connecting frame is provided with a guide wire, the lower end of the guide wire passes through the connecting frame and extends to the lower end of the connecting frame, the upper end of the guide wire passes through the connecting frame and the connecting seat in sequence and extends into the interior of the connecting column, and the upper end of the guide wire is electrically connected to the copper strip.

[0012] Preferably, the connecting frame is provided with a locking plate inside, and there are two locking plates arranged at the front and rear. The two locking plates are located on the front and rear sides of the guide line, respectively. The sides of the locking plates that are close to each other are in contact with the front and rear sides of the guide line, and the locking plates are slidably connected to the inner wall of the connecting frame.

[0013] Preferably, a positioning sleeve is fixedly installed inside the connecting frame. Two positioning sleeves are arranged at the front and rear. The positioning sleeve is fixedly connected to the inner wall of the connecting frame. A positioning rod is sleeved inside the positioning sleeve. The positioning rod is slidably connected to the inner wall of the positioning sleeve. The other end of the positioning rod is fixedly connected to the adjacent locking plate.

[0014] Preferably, a connecting spring is sleeved on the outer side of the positioning rod, and the two ends of the connecting spring are fixedly connected to the adjacent locking plate and the adjacent positioning sleeve, respectively.

[0015] Compared with the prior art, the beneficial effects of this utility model are: the installation structure of the wind turbine blade lightning protection device,

[0016] (1) This utility model forms a complete installation structure by reasonably combining components such as connecting sleeve, connecting column, and mounting base. After the lightning arrester receives lightning, the copper strip and the lead wire form a complete current conduction path, which can quickly and effectively draw out the lightning current and reduce the damage of lightning to the wind turbine blades.

[0017] (2) This utility model is composed of a locking plate, a positioning rod, a positioning sleeve and a connecting spring.

[0018] The fixed structure can firmly fix the guide wire, preventing it from shaking or shifting during the operation of the fan, and ensuring the stability of current conduction. Attached Figure Description

[0019] Figure 1 is a three-dimensional structural schematic diagram of this utility model;

[0020] Figure 2 is a perspective view of the connecting sleeve, connecting column and lightning arrester of this utility model;

[0021] Figure 3 is a perspective view of the connecting frame, the enclosing frame, and the connecting seat of this utility model;

[0022] Figure 4 is a perspective view of the locking plate, positioning rod and positioning sleeve of this utility model.

[0023] In the diagram: 1 Connecting sleeve, 2 Connecting column, 3 Mounting base, 4 Lightning arrester, 5 Fixing ring, 6 Connecting frame, 7 Enclosure frame, 8 Locking buckle, 9 Connecting base, 10 Guide wire, 11 Clamping plate, 12 Positioning rod, 13 Positioning sleeve. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Example 1:

[0026] Based on the existing problem that the high voltage and high current of lightning may directly strike the blades and damage their structural integrity, please refer to Figures 1-4. This utility model provides a technical solution: a lightning protection device installation structure for wind turbine blades, including a connecting sleeve 1. A connecting column 2 is provided at the left end of the connecting sleeve 1. The upper end of the connecting column 2 passes through the connecting sleeve 1 and is fixedly connected to the connecting sleeve 1. An installation base 3 is fixedly installed on the right side of the connecting sleeve 1. A lightning arrester 4 is fixedly installed on the top surface of the connecting sleeve 1.

[0027] The connecting sleeve 1 has a through cavity 1 on its side, and the connecting column 2 has a through cavity 2 inside. The through cavity 1 and the through cavity 2 are interconnected. A copper strip is fixedly installed at the lower end of the lightning arrester 4, and the copper strip passes through the through cavity 1 and the through cavity 2 in sequence.

[0028] A fixing ring 5 is fixedly sleeved on the outer side of the lower end of the connecting column 2, and the left side of the fixing ring 5 is fixed.

[0029] A connecting frame 6 is fixedly provided, and a closing frame 7 is hinged to the left end of the connecting frame 6. Both the connecting frame 6 and the closing frame 7 are fixedly provided with a buckle 8 on their front sides.

[0030] A connecting seat 9 is fixedly installed on the top surface of the connecting frame 6. The right end of the connecting seat 9 passes through the connecting column 2 and extends into the interior of the connecting column 2. The connecting seat 9 is in communication with the through cavity 2.

[0031] The connecting frame 6 is provided with a guide wire 10. The lower end of the guide wire 10 passes through the connecting frame 6 and extends to the lower end of the connecting frame 6. The upper end of the guide wire 10 passes through the connecting frame 6 and the connecting seat 9 in sequence and extends into the connecting column 2. The upper end of the guide wire 10 is electrically connected to the copper strip.

[0032] Furthermore, in this embodiment, the lightning arrester 4 is installed on the top surface of the connecting sleeve 1. When lightning occurs, the lightning arrester 4 can receive the lightning strike and introduce the lightning current into the lightning protection device. The copper strip fixedly installed at the lower end of the lightning arrester 4 passes through the first cavity on the side of the connecting sleeve 1 and the second cavity inside the connecting column 2 in sequence, conducting the lightning current into the interior of the connecting column 2. The lower end of the guide wire 10 passes through the connecting frame 6 and extends to its lower end, and the upper end passes through the connecting frame 6 and the connecting seat 9 in sequence and extends into the interior of the connecting column 2, and is electrically connected to the copper strip. In this way, the lightning current is conducted from the copper strip to the guide wire 10, and the current is further led out of the device through the guide wire 10, realizing the conduction and dissipation of the lightning current.

[0033] Furthermore, in this embodiment, a complete installation structure is formed by the reasonable combination of components such as connecting sleeve 1, connecting column 2, and mounting base 3. After the lightning arrester 4 receives lightning, the copper strip and the lead wire 10 form a complete current conduction path, which can quickly and effectively draw out the lightning current and reduce the damage of lightning to the wind turbine blades.

[0034] Example 2:

[0035] Please refer to Figures 1-4, and based on Embodiment 1, further: the connecting frame 6 is provided with a locking plate 11 inside, and there are two locking plates 11 arranged at the front and back. The two locking plates 11 are respectively located on the front and back sides of the guide line 10. The sides of the locking plates 11 that are close to each other are in contact with the front and back sides of the guide line 10. The locking plates 11 are slidably connected to the inner wall of the connecting frame 6.

[0036] A positioning sleeve 13 is fixedly installed inside the connecting frame 6. Two positioning sleeves 13 are arranged at the front and rear. The positioning sleeves 13 are fixedly connected to the inner wall of the connecting frame 6. A positioning rod is fitted inside the positioning sleeve 13.

[0037] 12. The positioning rod 12 is slidably connected to the inner wall of the positioning sleeve 13, and the other end of the positioning rod 12 is fixedly connected to the adjacent locking plate 11.

[0038] A connecting spring is sleeved on the outer side of the positioning rod 12, and the two ends of the connecting spring are fixedly connected to the adjacent locking plate 11 and the adjacent positioning sleeve 13, respectively.

[0039] Furthermore, in this embodiment, the two locking plates 11 inside the connecting frame 6 are respectively located on the front and rear sides of the guide wire 10 and are in contact with the front and rear sides of the guide wire 10. At the same time, the locking plates 11 are slidably connected to the inner wall of the connecting frame 6. The positioning sleeve 13 is fixed to the inner wall of the connecting frame 6. The positioning rod 12 is sleeved inside the positioning sleeve 13 and one end is fixedly connected to the locking plate 11. The two ends of the connecting spring sleeved on the outer side of the positioning rod 12 are fixedly connected to the adjacent locking plates 11 and the positioning sleeve 13 respectively. Under the action of the connecting spring, the positioning rod 12 drives the locking plates 11 to lock and fix the guide wire 10, ensuring the stability of the guide wire 10 in the connecting frame 6 and preventing it from shaking or shifting and affecting the current conduction.

[0040] Furthermore, this embodiment employs a fixing structure consisting of a locking plate 11, a positioning rod 12, a positioning sleeve 13, and a connecting spring, which can firmly fix the guide wire 10, preventing it from shaking or shifting during the operation of the fan and ensuring the stability of current conduction.

[0041] In use, the lightning arrester 4 is installed on the top surface of the connecting sleeve 1. When lightning occurs, the lightning arrester 4 can receive the lightning strike and introduce the lightning current into the lightning protection device. The copper strip fixedly installed at the lower end of the lightning arrester 4 passes through the first cavity on the side of the connecting sleeve 1 and the second cavity inside the connecting column 2, conducting the lightning current into the interior of the connecting column 2. The lower end of the guide wire 10 passes through the connecting frame 6 and extends to its lower end, while the upper end passes through the connecting frame 6 and the connecting seat 9 and extends into the interior of the connecting column 2, and is electrically connected to the copper strip. In this way, the lightning current is conducted from the copper strip to the guide wire 10, and the current is further led out of the device through the guide wire 10, realizing the conduction and dissipation of the lightning current and preventing lightning from damaging the wind turbine blades. The two locking plates 11 set inside the connecting frame 6 are located on the front and rear sides of the guide wire 10 respectively and are in contact with the front and rear sides of the guide wire 10. At the same time, the locking plates 11 are slidably connected to the inner wall of the connecting frame 6. The positioning sleeve 13 Fixed to the inner wall of the connecting frame 6, the positioning rod 12 is sleeved inside the positioning sleeve 13 and one end is fixedly connected to the locking plate 11. The two ends of the connecting spring sleeved on the outer side of the positioning rod 12 are fixedly connected to the adjacent locking plate 11 and positioning sleeve 13 respectively.

[0042] Then, under the action of the connecting spring, the positioning rod 12 drives the locking plate 11 to lock and fix the guide wire 10, ensuring the stability of the guide wire 10 in the connecting frame 6 and preventing it from shaking or shifting and affecting the current conduction.

[0043] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A lightning protection device installation structure for wind turbine blades, comprising a connecting sleeve (1), characterized in that: The left end of the connecting sleeve (1) is provided with a connecting column (2), the upper end of the connecting column (2) passes through the connecting sleeve (1) and is fixedly connected to the connecting sleeve (1), the right side of the connecting sleeve (1) is fixedly installed with a mounting base (3), and the top surface of the connecting sleeve (1) is fixedly installed with a lightning arrester (4).

2. The installation structure of a wind turbine blade lightning protection device according to claim 1, characterized in that: The connecting sleeve (1) has a through cavity one on its side, and the connecting column (2) has a through cavity two inside. The through cavity one and the through cavity two are connected to each other. The lower end of the lightning arrester (4) is fixedly installed with a copper strip, which passes through the through cavity one and the through cavity two in sequence.

3. The installation structure of a wind turbine blade lightning protection device according to claim 2, characterized in that: A fixing ring (5) is fixedly sleeved on the outer side of the lower end of the connecting column (2). A connecting frame (6) is fixedly installed on the left side of the fixing ring (5). A closing frame (7) is hinged to the left end of the connecting frame (6). A buckle (8) is fixedly installed on the front of both the connecting frame (6) and the closing frame (7).

4. The installation structure of a wind turbine blade lightning protection device according to claim 3, characterized in that: The top surface of the connecting frame (6) is fixedly provided with a connecting seat (9). The right end of the connecting seat (9) passes through the connecting column (2) and extends into the interior of the connecting column (2). The connecting seat (9) is in communication with the through cavity two.

5. The installation structure of a wind turbine blade lightning protection device according to claim 4, characterized in that: The connecting frame (6) is provided with a guide wire (10). The lower end of the guide wire (10) passes through the connecting frame (6) and extends to the lower end of the connecting frame (6). The upper end of the guide wire (10) passes through the connecting frame (6) and the connecting seat (9) in sequence and extends to the interior of the connecting column (2). The upper end of the guide wire (10) is electrically connected to the copper strip.

6. The installation structure of a wind turbine blade lightning protection device according to claim 5, characterized in that: The connecting frame (6) is provided with a locking plate (11) inside. There are two locking plates (11) arranged at the front and back. The two locking plates (11) are located at the front and back sides of the guide line (10) respectively. The sides of the locking plates (11) close to each other are in contact with the front and back sides of the guide line (10) respectively. It is slidably connected to the inner wall of the connecting frame (6).

7. The installation structure of a wind turbine blade lightning protection device according to claim 6, characterized in that: The connecting frame (6) is fixedly provided with a positioning sleeve (13). There are two positioning sleeves (13) arranged at the front and back. The positioning sleeve (13) is fixedly connected to the inner wall of the connecting frame (6). The positioning sleeve (13) is fitted with a positioning rod (12). The positioning rod (12) is slidably connected to the inner wall of the positioning sleeve (13). The other end of the positioning rod (12) is fixedly connected to the adjacent locking plate (11).

8. The installation structure of a wind turbine blade lightning protection device according to claim 7, characterized in that: The outer side of the positioning rod (12) is fitted with a connecting spring, and the two ends of the connecting spring are fixedly connected to the adjacent locking plate (11) and the adjacent positioning sleeve (13), respectively.

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