Metal lightning receiving net with downlead connecting assembly

Abstract

The utility model discloses a metal lightning receiving net with a downlead connecting assembly, and belongs to the technical field of lightning protection metal nets. The metal lightning receiving net comprises a metal net and a down lead connecting assembly, the down lead connecting assembly comprises a blade lightning arrester, a switching support and a down lead, the switching support comprises a down lead section and a lightning arrester section, a down lead hole in the end of the down lead is connected with the down lead, and a lightning arrester inner threaded hole in the end of the lightning arrester section is connected with the blade lightning arrester. The tail end of the net is transited into a metal foil which is thickened; and meanwhile, the blade body lightning arrester and the adapter bracket are fastened on the metal net through threads, so that the current circulation at the joint is more stable. The downlead conductor is directly inserted into the downlead hole, and the downlead is fixedly connected with the adapter bracket through crimping; and the down lead is directly connected with the adapter bracket, so that the problem of connection failure caused by excessive connection points is avoided. Chamfers are arranged at the contact positions of the adapter bracket and the blade lightning arrester with the metal net for transition, so that the problem of resin enrichment caused by protruding steps is avoided.

Description

Technical Field

[0001] This utility model relates to a metal lightning protection mesh with a down conductor connection component, which belongs to the technical field of lightning protection metal mesh. Background Technology

[0002] With more and more wind turbines being installed in marine environments, the high frequency of thunderstorms necessitates lightning protection systems for wind turbine blades to ensure their operational safety against lightning strikes. A typical design involves laying a metal mesh on the blade surface to intercept lightning strikes, and installing down conductors inside the blade to conduct them. The metal mesh and down conductors are connected, usually via a lightning arrester. The lightning arrester connects to a terminal block via an adapter copper block. One end of the terminal block is connected to the down conductor, and the other end is secured with bolts (e.g., ...). Figure 1 (As shown). This type of connection has too many connection points, making operation complicated, and the connection points are prone to failure. It is easy for lightning to spark when it passes through. In addition, the connection between the lightning arrester and the metal mesh is only a contact connection, which is not firm. Utility Model Content

[0003] In view of this, the present invention provides a metal lightning arrester with a down conductor connection component. The down conductor connection component can ensure a firm connection between the metal mesh and the down conductor, stable current conduction, and simple operation.

[0004] The technical solution adopted by this utility model is: a metal lightning arrester with a lead wire connection component, which includes a metal mesh, wherein the end of the mesh area of ​​the metal mesh is connected to a metal foil area, and the mesh area and the metal foil area are integrally formed; the metal foil area is provided with metal foil through holes;

[0005] A downlead connection assembly is provided at the through hole of the metal foil. The downlead connection assembly includes a blade lightning arrester, an adapter bracket, and a downlead. The adapter bracket includes a downlead segment and a lightning arrester segment. The end of the downlead is provided with a downlead hole for connection to the downlead, and the end of the lightning arrester segment is provided with a lightning arrester internal thread hole for connection to the blade lightning arrester.

[0006] The external threaded post of the blade lightning arrester passes through the metal foil through hole and is threadedly connected to the internal threaded hole of the lightning arrester.

[0007] The through-hole in the metal foil is located at the center of the metal foil area.

[0008] The angle between the downlead segment and the lightning rod segment is an obtuse angle.

[0009] The metal foil area is located at the end of the metal mesh along its length.

[0010] The thickness of the metal foil region is greater than the thickness of the mesh region.

[0011] The metal mesh is made of copper, aluminum, stainless steel, or nickel.

[0012] The adapter bracket is provided with an adapter bracket contact block at the contact point with the metal foil area, and the blade lightning arrester is provided with a lightning arrester contact block at the contact point with the metal foil area.

[0013] The contact block of the mounting bracket and the contact block of the lightning arrester are provided with a chamfered transition.

[0014] This invention offers the following advantages: The metal lightning arrester includes a metal mesh and a downleader connection assembly. The downleader connection assembly includes a blade lightning arrester, an adapter bracket, and a downleader. The adapter bracket includes a downleader segment and a lightning arrester segment. The downleader hole at the end of the downleader connects to the downleader, and the internal threaded hole at the end of the lightning arrester segment connects to the blade lightning arrester. The mesh transitions to a thicker metal foil at the end. Simultaneously, the blade lightning arrester and the adapter bracket are threadedly fastened to the metal mesh, resulting in more stable current flow at the connection point. The downleader conductor is directly inserted into the downleader hole, and the downleader is connected and fixed to the adapter bracket via crimping. The direct connection between the downleader and the adapter bracket avoids connection failures caused by too many connection points. Chamfered transitions are provided at the contact points between the adapter bracket, the blade lightning arrester, and the metal mesh to avoid resin-rich injection problems caused by raised steps. This ensures a firm connection between the metal mesh and the downleader, stable current conduction, and simple operation. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the connection between the metal mesh and the down conductor in the prior art.

[0016] Figure 2 This is a cross-sectional view of a metal flash wire with a down conductor connection assembly.

[0017] Figure 3 This is a schematic diagram of a metal lightning rod.

[0018] In the diagram: 1. Metal mesh, 101. Mesh area, 102. Metal foil area, 103. Metal foil through hole, 2. Blade lightning arrester, 201. External threaded post of lightning arrester, 202. Contact block of lightning arrester, 3. Adapter bracket, 301. Down lead segment, 302. Down lead hole, 303. Lightning arrester segment, 304. Internal threaded hole of lightning arrester, 305. Contact block of adapter bracket, 4. Down lead. Detailed Implementation

[0019] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments, but this does not limit the present invention to the scope of the embodiments described.

[0020] Figure 2 and Figure 3The image shows a metal lightning arrester with a lead wire connection assembly. It includes a metal mesh 1 made of copper, aluminum, stainless steel, or nickel. A metal foil region 102 is connected to the end of a mesh area 101 in the metal mesh 1, and the mesh area 101 and the metal foil region 102 are integrally formed. The metal foil region 102 is located at the end of the metal mesh 1 along its length and has a thickness greater than that of the mesh area 101. The metal foil region 102 has metal foil through-holes 103 located at its center.

[0021] A downlead connection assembly is provided at the through hole 103 of the metal foil. The downlead connection assembly includes a blade lightning arrester 2, an adapter bracket 3, and a downlead 4. The adapter bracket 3 includes a downlead segment 301 and a lightning arrester segment 303, and the included angle between the downlead segment 301 and the lightning arrester segment 303 is an obtuse angle. The end of the downlead 301 is provided with a downlead hole 302 for connecting to the downlead 4, and the end of the lightning arrester segment 303 is provided with a lightning arrester internal thread hole 304 for connecting to the blade lightning arrester 2.

[0022] The external threaded post 201 of the blade lightning arrester 2 passes through the metal foil through hole 103 and is threadedly connected to the internal threaded hole 304 of the lightning arrester. An adapter bracket contact block 305 is provided at the contact point between the adapter bracket 3 and the metal foil area 102, and a lightning arrester contact block 202 is provided at the contact point between the blade lightning arrester 2 and the metal foil area 102. The adapter bracket contact block 305 and the lightning arrester contact block 202 have a chamfered transition.

[0023] Make a metal foil through hole 103 in the center area of ​​the metal foil area 102 of the metal mesh, and then install the external thread part of the blade lightning receiver 2 at the metal foil through hole 103. The internal thread hole 304 of the lightning receiver of the adapter bracket 3 and the external thread post 201 of the lightning receiver of the blade lightning receiver 2 cooperate with each other and tighten them to clamp the metal foil area 102 in the middle.

[0024] The down conductor 4 is typically a copper or aluminum cable, with a conductor in the middle and an insulated surface. The other end of the adapter bracket 3 has a down conductor hole 302. The conductor portion of the down conductor 4 is directly inserted into the hole, and hydraulic clamps are used to press and secure the down conductor 4 to the adapter bracket 3.

[0025] The blade lightning arrester contacts the metal foil area of ​​the metal mesh and has external threads. One end of the adapter bracket has internal threads that match the lightning arrester. The adapter bracket and the blade lightning arrester clamp the metal foil tightly in the middle. The other end of the adapter bracket has an internal hole—a down conductor hole. The down conductor is directly inserted into the hole, and the down conductor is connected and fixed to the adapter bracket by crimping.

[0026] In addition to the above embodiments, the device of this utility model may also have other forms. It should be noted that any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of this utility model shall fall within the protection scope of this utility model.

Claims

1. A metallic lightning conductor net with a down conductor connection assembly, comprising a metallic net (1), characterized in that: The end of the mesh area (101) in the metal mesh (1) is connected with a metal foil area (102), and the mesh area (101) and the metal foil area (102) are integrally formed; the metal foil area (102) is provided with a metal foil through hole (103); The down lead connecting assembly is arranged at the metal foil through hole (103), and the down lead connecting assembly comprises a vane lightning arrester (2), an adapter support (3) and a down lead (4), the adapter support (3) comprises a down lead segment (301) and a lightning arrester segment (303), the end of the down lead (301) is provided with a down lead hole (302) connected with the down lead (4), and the end of the lightning arrester segment (303) is provided with a lightning arrester inner threaded hole (304) connected with the vane lightning arrester (2); The lightning arrester outer threaded column (201) of the vane lightning arrester (2) is threadedly connected with the lightning arrester inner threaded hole (304) through the metal foil through hole (103).

2. The metallic lightning protection mesh with down conductor connection assembly according to claim 1, characterized in that: The metal foil through hole (103) is arranged at the center of the metal foil area (102).

3. The metallic lightning protection mesh with down conductor connection assembly according to claim 1, characterized in that: The included angle between the down lead segment (301) and the lightning arrester segment (303) is obtuse.

4. The metallic lightning protection mesh with down conductor connection assembly of claim 1, wherein: The metal foil area (102) is arranged at the end of the length direction of the metal mesh (1).

5. The metallic lightning protection mesh with down conductor connection assembly according to claim 1, characterized in that: The thickness of the metal foil area (102) is greater than the thickness of the mesh area (101).

6. The metal lightning protection mesh with down conductor connection assembly of claim 1, wherein: The material of the metal mesh (1) is copper, aluminum, stainless steel or nickel.

7. The metallic lightning protection mesh with down conductor connection assembly of claim 1, wherein: The adapter support (3) is provided with an adapter support contact block (305) at the contact position with the metal foil area (102), and the vane lightning arrester (2) is provided with a lightning arrester contact block (202) at the contact position with the metal foil area (102).

8. The metallic lightning protection mesh with down conductor connection assembly according to claim 7, characterized in that: The adapter support contact block (305) and the lightning arrester contact block (202) are provided with chamfered transitions.

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