Lightning protection and electromagnetic shielding integrated protection device for wind power tower drum

Abstract

The utility model provides a wind power tower lightning protection and electromagnetic shielding integrated protection device, which relates to the technical field of wind power towers, and comprises a lightning protection mounting rack, an upper insulating layer and a circuit board, a central lightning rod is arranged in the middle of the upper part of the lightning protection mounting rack, and a central insulating sleeve is sleeved outside the central lightning rod; an upper insulating layer is laid on the upper end face of the lightning-protection mounting frame, a mounting cavity is formed in the lower side of the lightning-protection mounting frame, a circuit board is mounted in the mounting cavity, upper shielding glass is arranged on the lower portion in the circuit board, a partition plate is arranged on the lower side of the upper shielding glass, and lower shielding glass is arranged on the lower side of the partition plate. Side lightning rods are installed on the left side and the right side of the upper end face of the lightning protection installation frame. According to the utility model, the lightning protection intensity can be enhanced, waterproof sealing and safe insulation are realized, a dual electromagnetic shielding structure is adopted, the shielding is more comprehensive, the influence on the use of the wind power tower drum is avoided, and the use is safer, more reliable and more durable.

Description

Technical Field

[0001] The utility model relates to the technical field of wind power tower barrels, in particular to an integrated protection device for lightning protection and electromagnetic shielding of wind power tower barrels. Background Art

[0002] Wind power stations have different lightning protection problems from general power systems. The wind towers of wind power stations have three blades and are widely used with composite insulating materials such as fiberglass at a height of 120m - 200m from the ground. The lightning protection system has been incorporated into all parts of the wind power station to ensure that all possible lightning strike points are not damaged by the impact of lightning current, and the lightning current is safely guided into the ground from the lightning strike point without causing damage and interference. Compared with other natural disasters such as earthquakes, hurricanes, and volcanic eruptions, lightning is highly frequent and random, so it has greater danger and destructiveness. During thunderstorm weather, the lightning and thunder we see and hear are only the final stages in the complex formation and development process of lightning.

[0003] In the specification of a direct lightning strike protection device for a wind power blade and a generator set in the prior art (publication number CN115085011A), it is mentioned that "the device includes a connecting nut, a core component switch, an upper electrostatic shielding disc, a lower electrostatic shielding disc, a flange seat, and a grounding nut. The core component switch includes at least four high-voltage and large currents, which are installed between the upper electrostatic shielding disc and the lower electrostatic shielding disc; the upper electrostatic shielding disc is provided with a connecting nut and is connected to the downlead of the blade metal lightning arrester through the connecting nut; the lower electrostatic shielding disc is connected to the flange seat, the flange seat is provided with a grounding nut, and the lower electrostatic shielding disc is grounded through the grounding nut", but the direct lightning strike protection device in the prior art has a poor lightning protection effect and cannot shield electromagnetic waves, and still has an impact on the power generation equipment, and is not safe, reliable, and durable in use. Content of the Utility Model

[0004] To overcome the defects existing in the prior art, the present utility model provides an integrated protection device for lightning protection and electromagnetic shielding of wind power tower barrels to solve the problems that the direct lightning strike protection device in the prior art has a poor lightning protection effect, cannot shield electromagnetic waves, still has an impact on the power generation equipment, and is not safe, reliable, and durable in use.

[0005] To achieve the above object, an integrated protection device for lightning protection and electromagnetic shielding of wind power tower barrels is provided, including a lightning protection mounting frame, an upper insulating layer, and a circuit board. A central lightning rod is provided in the middle of the upper part of the lightning protection mounting frame, and a central insulating sleeve is sleeved outside the central lightning rod. The upper end surface of the lightning protection mounting frame is paved with an upper insulating layer, and an installation cavity is provided on the lower side of the lightning protection mounting frame. A circuit board is installed in the installation cavity, and an upper shielding glass is provided in the lower part of the circuit board. A partition is provided below the upper shielding glass, and a lower shielding glass is provided below the partition.

[0006] Further, side lightning rods are installed on both the left and right sides of the upper end face of the lightning protection mounting bracket. A side insulating sleeve is sleeved outside the side lightning rod. The central lightning rod and the side lightning rods are arranged in left-right alignment. A grounding wire is connected between the lower parts of the central lightning rod and the side lightning rods, and the lower end of the grounding wire is grounded.

[0007] Further, side grooves are provided at the lower parts of both the left and right side faces of the lightning protection mounting bracket. Screw holes are provided in the side grooves. A middle gasket is provided in the middle of the bottom of the lightning protection mounting bracket, and side gaskets are provided on both the left and right sides of the middle gasket.

[0008] Further, a waterproof and sealed surface layer is provided on the upper end face of the upper insulating layer. The upper insulating layer is made of nitrile rubber, and the waterproof and sealed surface layer is made of waterproof and sealed paint.

[0009] Further, inner support frames are provided on both the left and right sides of the circuit board. An inner insulating layer is provided between the upper end face of the circuit board and the inner top face of the lightning protection mounting bracket, and the inner insulating layer is made of PVC plastic.

[0010] Further, the upper shielding glass and the lower shielding glass have the same structure. The partition is made of silica gel, and the upper shielding glass, the partition, and the lower shielding glass are all detachable structures.

[0011] The beneficial effects of the present utility model are as follows:

[0012] 1. The upper end face of the lightning protection mounting bracket of the present utility model adopts a three-group lightning rod structure with a large middle and small sides, which helps to increase the lightning protection intensity, and the installation is safe and stable, and the use is insulated and reliable.

[0013] 2. The upper insulating layer in the present utility model is provided to help with the waterproof and insulation treatment of the upper surface of the lightning protection mounting bracket, making it safer and more durable.

[0014] 3. The upper shielding glass and the lower shielding glass in the present utility model adopt a double shielding electromagnetic structure, which is safer and more secure. And it is convenient for assembly or disassembly for subsequent maintenance and replacement. At the same time, an inner insulating layer is provided between the circuit board and the inner top face of the lightning protection mounting bracket, and the middle gasket and the side gaskets provided on the lower side of the lower shielding glass are for safety insulation, increasing its use safety and being more reliable and durable. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a front view schematic diagram of an embodiment of the present utility model;

[0016] Figure 2 is a top view schematic diagram of an embodiment of the present utility model;

[0017] Figure 3Schematic cross-sectional view of an embodiment of the present utility model;

[0018] Figure 4 Schematic diagram of a lightning protection mounting bracket of an embodiment of the present utility model.

[0019] In the figure: 1, lightning protection mounting bracket; 10, central lightning rod; 11, central insulating sleeve; 12, side lightning rod; 13, side insulating sleeve; 14, mounting cavity; 15, middle gasket; 16, side gasket; 17, side groove; 18, screw hole; 19, grounding wire; 2, upper insulating layer; 20, waterproof sealing surface layer; 3, circuit board; 30, upper shielding glass; 31, partition; 32, lower shielding glass; 33, inner support frame; 34, inner insulating layer. Detailed implementation manners

[0020] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. The specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model. Specific details such as specific system structures and technologies are proposed to more thoroughly understand the embodiments of the present utility model. The described embodiments are part of the embodiments of the present disclosure, but not all of the embodiments. However, those skilled in the art should understand that the present utility model can also be implemented in other embodiments without these specific details. Based on the embodiments in the present disclosure, all other embodiments obtained by those skilled in the art without creative efforts fall within the scope of protection of the present disclosure.

[0021] The following will describe in detail the specific implementation manners of the present utility model with reference to the accompanying drawings.

[0022] Figure 1 Front view schematic diagram of an embodiment of the present utility model, Figure 2 Top view schematic diagram of an embodiment of the present utility model, Figure 3 Schematic cross-sectional view of an embodiment of the present utility model and Figure 4 Schematic diagram of a lightning protection mounting bracket of an embodiment of the present utility model.

[0023] Referring to Figures 1 to 4 As shown, the present utility model provides a wind power tower lightning protection and electromagnetic shielding integrated protection device, including a lightning protection mounting bracket 1, an upper insulating layer 2 and a circuit board 3. A central lightning rod 10 is arranged in the middle of the upper part of the lightning protection mounting bracket 1, and a central insulating sleeve 11 is sleeved outside the central lightning rod 10. An upper insulating layer 2 is laid on the upper end surface of the lightning protection mounting bracket 1, and a mounting cavity 14 is arranged on the lower side of the lightning protection mounting bracket 1. A circuit board 3 is installed in the mounting cavity 14, and an upper shielding glass 30 is arranged in the lower part of the circuit board 3. A partition 31 is arranged under the upper shielding glass 30, and a lower shielding glass 32 is arranged under the partition 31.

[0024] In this embodiment, side lightning rods 12 are installed on both the left and right sides of the upper end surface of the lightning protection mounting bracket 1, and side insulating sleeves 13 are sleeved outside the side lightning rods 12. The central lightning rod 10 and the side lightning rods 12 are arranged in left-right alignment, and a grounding wire 19 is connected between the lower parts of the central lightning rod 10 and the side lightning rods 12. The lower end of the grounding wire 19 is grounded. Side grooves 17 are provided at the lower parts of both the left and right side surfaces of the lightning protection mounting bracket 1, screw holes 18 are provided in the side grooves 17, and a middle gasket 15 is provided in the middle of the bottom of the lightning protection mounting bracket 1. Side gaskets 16 are provided on both the left and right sides of the middle gasket 15.

[0025] As a preferred embodiment, the upper end surface of the lightning protection mounting bracket 1 of the present utility model adopts a three-group lightning rod structure with a larger middle and smaller sides, which helps to increase the lightning protection intensity, and the installation is safe and stable, and the use is insulated and reliable.

[0026] In this embodiment, a waterproof and sealing surface layer 20 is provided on the upper end surface of the upper insulating layer 2, and the upper insulating layer 2 is made of nitrile rubber, and the waterproof and sealing surface layer 20 is made of waterproof and sealing paint.

[0027] As a preferred embodiment, the upper insulating layer 2 in the present utility model is provided to help with the waterproof and insulation treatment of the upper surface of the lightning protection mounting bracket 1, making it safer and more durable.

[0028] In this embodiment, inner support frames 33 are provided on both the left and right sides of the circuit board 3, and an inner insulating layer 34 is provided between the upper end surface of the circuit board 3 and the inner top surface of the lightning protection mounting bracket 1. The inner insulating layer 34 is made of PVC plastic. The upper shielding glass 30 and the lower shielding glass 32 have the same structure, the partition 31 is made of silicone, and the upper shielding glass 30, the partition 31, and the lower shielding glass 32 are all detachable structures.

[0029] As a preferred embodiment, the upper shielding glass 30 and the lower shielding glass 32 in the present utility model adopt a double shielding electromagnetic structure, which is safer and more secure, and is convenient for assembly or disassembly for subsequent maintenance and replacement. At the same time, the inner insulating layer 34 is provided between the circuit board 3 and the inner top surface of the lightning protection mounting bracket 1, and the middle gasket 15 and the side gaskets 16 provided on the lower side of the lower shielding glass 32 are for safety insulation, increasing its use safety and being more reliable and durable.

[0030] The present utility model can effectively solve the problems in the prior art that the direct lightning protection device has poor lightning protection effect, cannot shield electromagnetic waves, still affects the power generation equipment, and is not safe, reliable and durable in use. The present utility model can not only enhance the lightning protection intensity, be waterproof, sealed, safe and insulated, but also adopt a double electromagnetic shielding structure, with more comprehensive shielding, avoiding affecting the use of the wind power tower barrel, and being safer, more reliable and durable in use.

[0031] The above embodiments are used to explain the present utility model, rather than to limit the utility model. Any modifications and changes made to the present utility model within the spirit of the present utility model and the scope of the claims for protection of the application shall be included within the protection scope of the present utility model.

Claims

1. An integrated lightning protection and electromagnetic shielding device for a wind power tower barrel, characterized in that: It includes a lightning protection mounting frame (1), an upper insulating layer (2) and a circuit board (3). A central lightning rod (10) is arranged in the middle of the upper part of the lightning protection mounting frame (1), and a central insulating sleeve (11) is sleeved outside the central lightning rod (10). The upper insulating layer (2) is laid on the upper end surface of the lightning protection mounting frame (1), and an installation cavity (14) is arranged on the lower side of the lightning protection mounting frame (1). The circuit board (3) is installed in the installation cavity (14), and an upper shielding glass (30) is arranged in the lower part of the circuit board (3). A partition plate (31) is arranged under the upper shielding glass (30), and a lower shielding glass (32) is arranged under the partition plate (31).

2. An integrated lightning protection and electromagnetic shielding protection device for a wind power tower barrel according to claim 1, characterized in that, Side lightning rods (12) are installed on both the left and right sides of the upper end surface of the lightning protection mounting frame (1), and side insulating sleeves (13) are sleeved outside the side lightning rods (12). The central lightning rod (10) and the side lightning rods (12) are arranged in left-right alignment, and a grounding wire (19) is connected between the lower parts of the central lightning rod (10) and the side lightning rods (12). The lower end of the grounding wire (19) is grounded.

3. An integrated lightning protection and electromagnetic shielding device for a wind power tower according to claim 1, characterized in that, Side grooves (17) are arranged on the lower parts of both the left and right side surfaces of the lightning protection mounting frame (1). Screw holes (18) are formed in the side grooves (17), and a middle gasket (15) is arranged in the middle of the bottom of the lightning protection mounting frame (1). Side gaskets (16) are arranged on both the left and right sides of the middle gasket (15).

4. An integrated lightning protection and electromagnetic shielding device for a wind power tower barrel according to claim 1, characterized in that, A waterproof and sealed surface layer (20) is arranged on the upper end surface of the upper insulating layer (2). The upper insulating layer (2) is made of nitrile rubber, and the waterproof and sealed surface layer (20) is made of waterproof and sealed paint.

5. The integrated lightning protection and electromagnetic shielding protection device for a wind power tower barrel according to claim 1, characterized in that, Inner support frames (33) are arranged on both the left and right sides of the circuit board (3). An inner insulating layer (34) is arranged between the upper end surface of the circuit board (3) and the inner top surface of the lightning protection mounting frame (1). The inner insulating layer (34) is made of PVC plastic.

6. The integrated lightning protection and electromagnetic shielding protection device for a wind power tower barrel according to claim 1, characterized in that, The upper shielding glass (30) and the lower shielding glass (32) have the same structural settings. The partition plate (31) is made of silica gel, and the upper shielding glass (30), the partition plate (31) and the lower shielding glass (32) are all detachable structures.

Images