Lightning protection metal roof structure

By combining surface-mounted lightning protection strips with fixed brackets and anti-corrosion treatment, the complex construction and poor waterproofing of lightning protection metal roof structures are solved, achieving convenient maintenance and efficient waterproofing while protecting the building's aesthetics.

CN224582835UActive Publication Date: 2026-07-31HANGZHOU TONGDA GRP +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HANGZHOU TONGDA GRP
Filing Date
2025-07-09
Publication Date
2026-07-31

AI Technical Summary

Technical Problem

Existing lightning protection metal roof structures suffer from problems such as complex construction, inconvenient subsequent maintenance and management, and poor waterproofing.

Method used

The design combines surface-mounted lightning protection strips with fixed brackets, using double-sided welding and clip-on structure connections. Combined with conductive sealing layers and compensation measures, it ensures conductivity and waterproofing. Anti-corrosion treatment is applied to the welded joints, and photovoltaic panel lightning protection contacts are installed to prevent lightning damage.

Benefits of technology

It simplifies the construction process, improves construction efficiency, extends service life, enhances waterproofing, facilitates subsequent maintenance and management, and protects the building's aesthetics.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model belongs to the field of building construction technology, specifically relating to a lightning protection metal roof structure, including a surface-mounted lightning conductor strip, a lightning down conductor, a fixed bracket, and a concealed lightning conductor strip. Several fixed brackets are provided, all mounted on the decorative surface. The surface-mounted lightning conductor strip is installed on the fixed brackets. The lightning down conductor is located on the decorative surface, with its top connected to the surface-mounted lightning conductor strip. The concealed lightning conductor strip is concealed within the roof. This application achieves a technical effect of facilitating subsequent management and maintenance by using double-sided welding at the overlap of the surface-mounted lightning conductor strip and applying anti-corrosion treatment to the weld joints. Furthermore, by setting a clip-type structure on the fixed bracket to connect the surface-mounted lightning conductor strip, this application achieves a technical effect of facilitating subsequent management and maintenance. Additionally, by setting a conductive sealing layer at the connection between the fixed bracket and the decorative surface, this application significantly improves conductivity and waterproofing.
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Description

Technical Field

[0001] This utility model relates to the field of building construction technology, and in particular to a lightning protection metal roof structure. Background Technology

[0002] Lightning strikes are extremely destructive, with voltages reaching millions to tens of millions of volts and currents reaching hundreds of thousands of amperes. They can destroy buildings, cause fires, injure or kill people and livestock, and disrupt power systems. Therefore, installing lightning protection devices on roofs is essential. Traditional metal roofs require separate lightning rods or lightning protection strips, necessitating high-altitude work, posing significant risks, and impacting the building's aesthetics. Using metal roof panels directly as lightning rods, on the other hand, presents challenges in electrical connections, waterproofing, and cost.

[0003] Chinese invention patent CN11334644 A (publication date: September 3, 2021) discloses a lightning-protected metal roof and its construction method. This patent combines lightning rods, lightning protection strips, and lightning protection nets, which can be used in various types of buildings, has a wide range of applications, is easy to install, and has good lightning protection effect, but it neglects the waterproofing issue.

[0004] Chinese invention patent CN109025078A (publication date: December 18, 2018) discloses a lightning protection metal roof and its construction method. This patent uses the metal roof panel itself as a lightning protection network and makes an electrical connection between the metal roof panel and the steel mesh of the main concrete structure of the roof to form a circuit. Although it reduces the construction difficulty and cost to a certain extent and enhances the waterproof effect, it does not take into account the issue of subsequent maintenance. Utility Model Content

[0005] This application provides a lightning protection metal roof structure, which mainly solves the problems of complex construction, inconvenient subsequent maintenance and management, and poor waterproofing in existing building lightning protection structures. The specific technical solution is described as follows.

[0006] A lightning protection metal roof structure includes an exposed lightning arrester strip, a lightning protection down conductor, a fixing bracket, and a concealed lightning arrester strip;

[0007] There are several fixed brackets, all of which are set on the decorative surface;

[0008] The surface-mounted flash connector is installed on a fixed bracket;

[0009] The lightning protection down conductor is installed on the decorative surface, and its top is connected to the surface-mounted lightning protection strip.

[0010] The concealed lightning protection strip is installed inside the roof to protect the building from lightning strikes. Since it is encased in the building materials, it not only reduces the erosion from the external environment and extends the service life, but also does not damage the aesthetic appearance of the building.

[0011] Furthermore, several of the aforementioned fixed supports are arranged at intervals, with a spacing of no more than 1m, and a spacing of 0.4 to 0.5m at the corners of the decorative surface; the height of the fixed supports is no less than 0.15m, used to support the surface-mounted connecting strip, while simplifying construction and improving construction efficiency.

[0012] Furthermore, there are several exposed flashing tapes, which are connected by overlapping. The overlap length is not less than 5 times the diameter of the exposed flashing tape. The overlap is fixed by double-sided welding, and the welded joint is treated with anti-corrosion to highlight key parts and facilitate subsequent maintenance.

[0013] Furthermore, the fixing bracket is T-shaped, and its top surface is provided with a clip structure.

[0014] Furthermore, the surface-mounted flash connector is connected to the fixed bracket via a clip structure, facilitating maintenance.

[0015] Furthermore, the lightning protection down conductor is installed at the corner of the decorative surface and is used for the electrical connection between the surface-mounted lightning strip and the grounding device.

[0016] Furthermore, the portion of the lightning protection down conductor on the decorative surface is shaped like a "7", and its top is connected to the surface-mounted lightning protection strip by welding.

[0017] Furthermore, a conductive sealing layer is provided at the connection between the fixed bracket and the decorative surface, which has both conductivity and waterproof properties.

[0018] Furthermore, the exposed flashing strip is configured as an annular protrusion at the building, and its cross-connection at the building's expansion joint is provided with compensation measures.

[0019] Furthermore, the lightning protection metal roof structure also includes lightning protection contacts for photovoltaic panels to prevent lightning from damaging the photovoltaic panels and related equipment.

[0020] Furthermore, there are several concealed lightning rods, which are connected by metal connectors such as bolts and nuts to ensure the continuity and stability of the concealed lightning rods.

[0021] Compared with the prior art, the advantages and effects of the technical solution that this application focuses on protecting are as follows:

[0022] 1. The lightning protection metal roof structure provided in this application facilitates subsequent maintenance and management: ① The surface-mounted lightning protection strip is fixed by double-sided welding at the overlap, and anti-corrosion treatment is applied to the welded joint, highlighting key parts for easy subsequent maintenance; ② A clip structure is set on the fixed bracket to connect the fixed bracket and the surface-mounted lightning protection strip, which facilitates subsequent maintenance.

[0023] 2. This application significantly improves conductivity and waterproofness by setting a conductive sealing layer at the connection between the fixed bracket and the decorative surface.

[0024] 3. The lightning protection metal roof structure provided in this application can significantly extend the service life of the material by setting the overlap length between exposed lightning protection strips to be no less than 5 times the diameter of the exposed lightning protection strip, and setting compensation measures at the cross joints of the exposed lightning protection strips at the building expansion joints. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. In all drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to actual scale.

[0026] in:

[0027] Figure 1 This is a plan view of a lightning protection metal roof structure provided in this application;

[0028] Figure 2 This is a schematic diagram of the overlapping joint of the exposed lightning protection strip in a lightning protection metal roof structure provided in this application;

[0029] Figure 3 This is an enlarged view of part A of a lightning protection metal roof structure provided in this application.

[0030] Among them: 1-fixed bracket; 2-surface-mounted lightning protection strip; 3-lightning protection down conductor; 4-conductive sealing layer; 5-casing structure. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. In the following description, specific details such as specific configurations and components are provided merely to help fully understand the embodiments of this application. Therefore, those skilled in the art should understand that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of this application. In addition, for clarity and brevity, descriptions of known functions and structures are omitted in the embodiments.

[0032] It should be understood that the phrase "an embodiment" or "this embodiment" throughout the specification means that a specific feature, structure, or characteristic related to the embodiment is included in at least one embodiment of this application. Therefore, "an embodiment" or "this embodiment" appearing throughout the specification does not necessarily refer to the same embodiment. Furthermore, these specific features, structures, or characteristics can be combined in any suitable manner in one or more embodiments.

[0033] Furthermore, reference numerals and / or letters may be repeated in different examples within this application. Such repetition is for the purpose of simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or settings discussed.

[0034] In this article, 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 mean: A exists alone, B exists alone, and A and B exist simultaneously. The term " / and" describes another type of relationship between related objects, indicating that two relationships can exist. For example, A / and B can mean: A exists alone, and A and B exist alone. In addition, the character " / " in this article generally indicates that the related objects before and after it have an "or" relationship.

[0035] In this article, the term "at least one" is merely a description of the relationship between related objects, indicating that there can be three relationships. For example, "at least one of A and B" can mean: A exists alone, A and B exist simultaneously, or B exists alone.

[0036] It should also be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion.

[0037] Example 1

[0038] This embodiment describes a lightning protection metal roof structure, the plan view of which can be found here. Figure 1 It includes 2 surface-mounted lightning protection strips, 3 lightning protection down conductors, 1 fixed bracket, and 6 concealed lightning protection strips;

[0039] There are several fixed brackets 1, all of which are set on the decorative surface;

[0040] The surface-mounted flashing strip 2 is installed on the fixed bracket 1;

[0041] The lightning protection down conductor 3 is installed on the decorative surface, and its top is connected to the surface-mounted lightning protection strip 2;

[0042] The concealed lightning protection strip 6 is installed inside the roof to protect the building from lightning strikes. Since it is encased in the building materials, it not only reduces the erosion of the external environment and extends the service life, but also does not damage the aesthetic appearance of the building.

[0043] Furthermore, several of the fixed supports 1 are arranged at intervals, with a spacing of no more than 1m, and a spacing of 0.4 to 0.5m at the corners of the decorative surface; the height of the fixed supports 1 is no less than 0.15m, used to support the surface-mounted connecting strip 2, while simplifying construction and improving construction efficiency.

[0044] Furthermore, the surface-mounted lightning arrester strip 2 comprises several strips, which are connected by overlapping. The overlap length is not less than 5 times the diameter of the surface-mounted lightning arrester strip 2. The overlap is fixed by double-sided welding, and the welded joints are treated with anti-corrosion measures to highlight key areas and facilitate subsequent maintenance. Please refer to the diagram for the overlap of the surface-mounted lightning arrester strip 2. Figure 2 .

[0045] Furthermore, the fixed bracket 1 is T-shaped, and its top surface is provided with a clip structure 5.

[0046] Furthermore, the surface-mounted flash connector 2 is connected to the fixed bracket 1 via a clip-on structure 5 for easy maintenance. Please refer to [link / reference]. Figure 3 .

[0047] Furthermore, the lightning protection down conductor 3 is installed at the corner of the decorative surface and is used for the electrical connection between the surface-mounted lightning strip 2 and the grounding device.

[0048] Furthermore, the portion of the lightning protection down conductor 3 on the decorative surface is shaped like a "7", and its top is connected to the surface-mounted lightning protection strip 2 by welding.

[0049] Furthermore, a conductive sealing layer 4 is provided at the connection between the fixed bracket 1 and the decorative surface, which has both conductivity and waterproof properties.

[0050] Furthermore, the exposed flashing strip 2 is configured as an annular protrusion at the building, and its cross-connection at the building's expansion joint is provided with compensation measures.

[0051] Furthermore, the lightning protection metal roof structure also includes lightning protection contacts for photovoltaic panels to prevent lightning from damaging the photovoltaic panels and related equipment.

[0052] Furthermore, there are several concealed lightning protection strips 6, which are connected to each other by metal connectors such as bolts and nuts to ensure the continuity and stability of the concealed lightning protection strips 6.

[0053] The technical effects achieved by this embodiment are as follows: This embodiment uses double-sided welding to fix the surface-mounted flashing strip at the overlap and performs anti-corrosion treatment at the welded joint. At the same time, by setting a clip structure on the fixed bracket to connect the surface-mounted flashing strip and the fixed bracket, the technical effect of facilitating subsequent management and maintenance is achieved. This embodiment also significantly improves conductivity and waterproofness by setting a conductive sealing layer at the connection between the fixed bracket and the decorative surface.

[0054] Example 2

[0055] Based on the above embodiment 1, this embodiment introduces a specific implementation method of a lightning protection metal roof structure;

[0056] Preferably, in this embodiment, the surface-mounted lightning arrester 2 is made of Φ12 hot-dip galvanized round steel.

[0057] Preferably, in this embodiment, the fixing bracket 1 is made of Φ12 hot-dip galvanized round steel with a spacing of 1m, a spacing of 0.5m at the corner of the decorative surface, and a height of 0.15m.

[0058] Preferably, in this embodiment, the concealed lightning protection strip 6 is made of Φ12 hot-dip galvanized round steel and concealed within the roof.

[0059] Preferably, in this embodiment, the lightning protection down conductor 3 has a pre-embedded connecting plate at a distance of 0.5m from the ground.

[0060] The above description is merely a preferred embodiment of the present utility model and does not limit the scope of protection of the present utility model. Various modifications and variations are possible with the present utility model. Any changes, modifications, substitutions, integrations, and parameter alterations to these embodiments within the spirit and principles of the present utility model fall within the scope of protection defined by the claims of the present utility model.

Claims

1. A lightning protection metal roof structure comprising a surface-mounted lightning conductor strip (2), a lightning down-conductor (3), characterized in that: It also includes a fixed bracket (1) and a concealed flash receiver (6); There are several fixed brackets (1), all of which are set on the decorative surface; a conductive sealing layer (4) is provided at the connection between the fixed bracket (1) and the decorative surface. The surface-mounted flashing strip (2) is installed on the fixed bracket (1); The lightning protection down conductor (3) is set on the decorative surface, and its top is connected to the surface-mounted lightning strip (2); The concealed lightning rod (6) is concealed inside the roof; The fixed bracket (1) is T-shaped, and its top surface is provided with a clip structure (5).

2. A lightning protection metal roof construction according to claim 1, characterized in that Several fixed supports (1) are arranged at intervals, with a spacing of no more than 1m, and a spacing of 0.4~0.5m at the corner of the decorative surface; the height of the fixed supports (1) is no less than 0.15m.

3. A lightning protection metal roof construction according to claim 1, characterized in that There are several surface-mounted flashing strips (2), and the several surface-mounted flashing strips (2) are connected by overlapping each other. The overlap length is not less than 5 times the diameter of the surface-mounted flashing strip (2), and the overlap is fixed by double-sided welding.

4. A lightning protection metal roof construction according to claim 3, characterized in that The surface-mounted flashing strip (2) is connected to the fixed bracket (1) via a clip structure (5).

5. A lightning protection metal roof construction according to claim 1, characterized in that The lightning protection down conductor (3) is set at the corner of the decorative surface.

6. A lightning protection metal roof construction according to claim 5, characterized in that The surface-mounted flashing strip (2) is configured as an annular protrusion at the building.

7. A lightning protection metal roof construction according to claim 6, characterized in that The lightning protection down conductor (3) is shaped like a "7" on the decorative surface, and its top is connected to the surface-mounted lightning protection strip (2) by welding.

8. A lightning protection metal roof construction according to claim 1, characterized in that The lightning protection metal roof structure also includes photovoltaic panel lightning protection contacts.