A lightning protection device applied to a photovoltaic panel

Abstract

The application provides a lightning protection device for photovoltaic panels, which is characterized by the following technical scheme: a plurality of photovoltaic panels are installed on the roof of a building through a fixing frame, and the plurality of photovoltaic panels are arranged in a matrix form with multiple rows and multiple columns at a specific angle. In the process of arranging the lightning protection device for the photovoltaic panel matrix, the first end of a support frame is fixedly connected with the fixing frame for installing the photovoltaic panel, the second end of the support frame extends out of the photovoltaic panel and extends away from the roof of the building, a lightning protection belt is arranged above the photovoltaic panel along the arrangement sequence of the photovoltaic panel and is connected with the second end of the support frame, so that the support frame can fix and support the lightning protection belt above the photovoltaic panel, thereby achieving the lightning protection effect. In this embodiment, the lightning protection belt is fixed on the fixing frame for installing the photovoltaic panel through the support frame, thereby avoiding the phenomenon that the traditional installation of the lightning protection belt needs to open a hole on the main body of the house to damage the structure waterproof layer.

Description

Technical Field

[0001] This application relates to the field of photovoltaic panel lightning protection device technology, specifically to a photovoltaic panel assembled lightning protection device. Background Technology

[0002] Traditional photovoltaic (PV) panel lightning protection devices require all conductive parts to be connected to the same grounding network in order to eliminate potential differences in conductive parts such as the metal frame, bracket, and inverter of the PV module. In this case, the bracket needs to be bridging with the building's lightning protection down conductor every 5-10 meters using galvanized flat steel. Large arrays require multiple points of uniform bridging. This not only requires additional brackets to fix the flat steel, but also often involves welding, which is not only unsightly, but also poses a risk of damaging the roof's waterproof layer. Utility Model Content

[0003] In view of the technical problems existing in the background art, this application provides a lightning protection device for photovoltaic panels. The lightning protection strip is fixed to the photovoltaic panel by a support frame, and the fixing frame itself is used as a support point to support the lightning protection strip. This avoids the need for secondary drilling of the lightning protection device on the completed roof structure, and ensures the safety and waterproof performance of the main structure of the building.

[0004] This application provides a photovoltaic panel prefabricated lightning protection device. The roof of the building is equipped with a photovoltaic panel matrix composed of several photovoltaic panels, and the photovoltaic panels are installed on the roof of the building via a fixing frame. The photovoltaic panel prefabricated lightning protection device includes:

[0005] Multiple support frames and multiple support members are arranged sequentially along the arrangement direction of the photovoltaic panels in the photovoltaic panel matrix. Each support frame includes a first end and a second end. The first end of the support frame is used to be fixedly connected to the fixing frame, and the second end of the support frame extends out of the photovoltaic panel and extends away from the roof.

[0006] A lightning protection strip is provided along the arrangement direction of the photovoltaic panels in the photovoltaic panel matrix, and the second ends of the plurality of support frames are all connected to the lightning protection strip.

[0007] Furthermore, in this embodiment, the first end of the support frame is provided with a first fixing bolt, and the first end of the support frame is fixedly connected to the fixing frame through the first fixing bolt.

[0008] Furthermore, in this embodiment, the first end of the support frame is provided with at least two sets of the first fixing bolts.

[0009] Furthermore, in this embodiment, the first end of the support frame is provided with a clamp, and the first end of the support frame is fixedly connected to the fixing frame through the clamp.

[0010] Further, in this embodiment, a second fixing bolt is provided at the second end of the support frame, and the second end of the support frame is fixedly connected to the lightning protection strip via the second fixing bolt.

[0011] Further, in this embodiment, at least two sets of the second fixing bolts are provided at the second end of the support frame.

[0012] Further, in this embodiment, a clamping member is provided at the second end of the support frame, and the lightning protection strip is fixedly connected to the second end of the support frame via the clamping member.

[0013] Further, in this embodiment, the clamping member comprises:

[0014] a clamping portion, wherein the clamping portion has a U-shaped structure, and an opening of the clamping portion is arranged toward the support frame;

[0015] a connecting portion, wherein the connecting portion is provided on both sides of the opening of the clamping portion, the clamping portion is connected to the support frame via the connecting portion, and a clamping structure for clamping the lightning protection strip is formed between the clamping portion and the support frame.

[0016] Further, in this embodiment, the device further comprises a connecting device, wherein each row of the photovoltaic panels in the photovoltaic panel matrix is provided with one set of the lightning protection strips, and a plurality of the lightning protection strips are all connected to the connecting device.

[0017] Further, in this embodiment, the connecting device comprises a branch connecting strip and a branch connecting member, wherein the branch connecting strip is arranged on a side of the photovoltaic panel close to the roof and connected to the lightning protection strip via the branch connecting member.

[0018] Beneficial effects:

[0019] The装配式 lightning protection device applied to photovoltaic panels provided by the present application mounts a plurality of photovoltaic panels on the roof of a building via a fixing frame, and arranges the plurality of photovoltaic panels in a multi-row and multi-column matrix form at a specific angle. In the process of arranging the lightning protection device for the photovoltaic panel matrix, a first end of the support frame is fixedly connected to the fixing frame for mounting the photovoltaic panels, and a second end of the support frame extends out of the photovoltaic panels and extends in a direction away from the roof (that is, the second end of the support frame is located above the photovoltaic panels). The lightning protection strip is arranged above the photovoltaic panels along the arrangement sequence of the photovoltaic panels and connected to the second end of the support frame, so that the support frame can fixedly support the lightning protection strip above the photovoltaic panels, thereby achieving a lightning protection effect. In this embodiment, the lightning protection strip is fixed on the fixing frame for mounting the photovoltaic panels via the support frame, which avoids the phenomenon that the traditional installation of the lightning protection strip requires opening holes in the main body of the house and damages the structural waterproof layer.

[0020] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of this application, the accompanying drawings used in this application will be briefly described below. Obviously, the drawings described below are merely some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without any creative effort.

[0022] Figure 1 This is a schematic diagram of the overall structure of the photovoltaic panel assembled lightning protection device according to an embodiment of this application;

[0023] Figure 2 This is a partial schematic diagram of the connection between the support frame and the fixed frame in an embodiment of this application;

[0024] Figure 3 This is a partial schematic diagram of the connection between the support frame and the lightning protection strip in an embodiment of this application;

[0025] Figure 4 This is a partial schematic diagram of the connector in an embodiment of this application;

[0026] Figure 5 This is a partial schematic diagram of the connection between the lightning protection strip and the connecting device in an embodiment of this application.

[0027] Explanation of reference numerals in the attached figures:

[0028] 10. Photovoltaic panels; 11. Mounting frame;

[0029] 20. Support frame;

[0030] 210. First fixing bolt; 220. Snap-fit ​​component; 221. Snap-fit ​​part; 222. Connecting part;

[0031] 30. Lightning protection strip; 40. Connecting device; 410. Branch connecting strip; 420. Branch connector. Detailed Implementation

[0032] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0034] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0035] In this document, the term "embodiment" means that a particular 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 separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0036] In the description of the embodiments 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: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0037] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple sets" refers to two or more (including two sets), and "multiple pieces" refers to two or more (including two pieces).

[0038] In the description of the embodiments of this application, the technical terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0039] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0040] Traditional photovoltaic (PV) panel lightning protection devices require all conductive parts to be connected to the same grounding network in order to eliminate potential differences in conductive parts such as the metal frame, bracket, and inverter of the PV module. In this case, the bracket needs to be bridging with the building's lightning protection down conductor every 5-10 meters using galvanized flat steel. Large arrays require multiple points of uniform bridging. This not only requires additional brackets to fix the flat steel, but also often involves welding, which is not only unsightly, but also poses a risk of damaging the roof's waterproof layer.

[0041] To address the technical challenges of existing traditional photovoltaic (PV) panel lightning protection devices, which require additional supports for fixing flat steel bars and are often welded, resulting in unsightly appearances and potential damage to the roof's waterproofing layer, this application provides a prefabricated PV panel lightning protection device. This device uses a support frame to fix the lightning protection strip to the PV panel, utilizing the frame itself as a support point. This avoids the need for secondary drilling into the already constructed roof structure, ensuring the safety and waterproofing performance of the building's main structure.

[0042] Please see Figure 1 , Figure 1 This application provides an overall structural schematic diagram of a photovoltaic panel-mounted lightning protection device.

[0043] like Figure 1 As shown, this application embodiment provides a photovoltaic panel assembled lightning protection device. The roof of the building is provided with a photovoltaic panel 10 matrix composed of a plurality of photovoltaic panels 10, and the photovoltaic panels 10 are installed on the roof of the building through a fixing frame 11. The photovoltaic panel 10 assembled lightning protection device includes a plurality of support frames 20 and a lightning protection strip 30. The plurality of support members are arranged sequentially along the arrangement direction of the photovoltaic panels 10 in the photovoltaic panel 10 matrix. The support frame 20 includes a first end and a second end. The first end of the support frame 20 is used to fix and connect to the fixing frame 11, and the second end of the support frame 20 extends out of the photovoltaic panel 10 and extends in a direction away from the roof of the photovoltaic panel 10. The lightning protection strip 30 is arranged along the arrangement direction of the photovoltaic panels 10 in the photovoltaic panel 10 matrix, and the second ends of the plurality of support frames 20 are all connected to the lightning protection strip 30.

[0044] Understandably, a photovoltaic (PV) panel matrix, also known as a PV array, is a DC power generation unit composed of several PV modules or PV panels 10 assembled mechanically and electrically in a certain manner and having a fixed support structure. In this embodiment, several PV panels 10 are installed on the roof of a building using a fixing frame 11, and the PV panels 10 are arranged in a matrix with multiple rows and columns at a specific angle. During the installation of the lightning protection device for the PV panel matrix, the first end of the support frame 20 is fixedly connected to the fixing frame 11 used to install the PV panels 10, and the second end of the support frame 20 extends beyond the PV panels 10 and extends away from the roof (so that the second end of the support frame 20 is located on top of the PV panels 10). The lightning protection strip 30 is arranged above the PV panels 10 along the arrangement sequence of the PV panels 10 and connected to the second end of the support frame 20, so that the support frame 20 can fix and support the lightning protection strip 30 above the PV panels 10, thereby achieving the effect of lightning protection. In this embodiment, the lightning protection strip 30 is fixed to the fixing frame 11 for installing the photovoltaic panel 10 by the support frame 20, which avoids the phenomenon that the traditional installation of the lightning protection strip 30 requires drilling holes in the main body of the building, which would damage the structural waterproof layer.

[0045] In one alternative embodiment, such as Figure 2 As shown, the first end of the support frame 20 is provided with a first fixing bolt 210. The first end of the support frame 20 is fixedly connected to the fixing frame 11 through the first fixing bolt 210. It can be understood that, in this embodiment, through holes can be temporarily or pre-drilled on the fixing frame 11 and the support frame 20. When the support frame 20 is installed on the fixing frame 11, the support frame 20 and the fixing frame 11 can be fixedly connected by passing the first fixing bolt 210 through the through hole. In this embodiment, the support frame 20 and the fixing frame 11 are fixedly connected by the first fixing bolt 210 without welding, which reduces the installation difficulty between the support frame 20 and the fixing frame 11.

[0046] In some embodiments, the first end of the support frame 20 is provided with at least two sets of first fixing bolts 210. It can be understood that in this embodiment, the support frame 20 and the fixed frame 11 are connected by two or more sets of first fixing bolts 210. By providing at least two sets of first fixing bolts 210 between the support frame 20 and the fixed frame 11, the stability of the connection between the support frame 20 and the fixed frame 11 is effectively increased.

[0047] In another optional embodiment, the first end of the support frame 20 is provided with a clamp, and the first end of the support frame 20 is fixedly connected to the fixed frame 11 through the clamp. It can be understood that in this embodiment, the clamp is snapped into the fixed frame 11, thereby enabling a fixed connection between the support frame 20 and the fixed frame 11. In this embodiment, the clamp connects the support frame 20 and the fixed frame 11, eliminating the need to open through holes in the support frame 20 and the fixed frame 11, thus reducing the installation difficulty between the support frame 20 and the fixed frame 11.

[0048] In some optional embodiments, the second end of the support frame 20 is provided with a second fixing bolt, and the second end of the support frame 20 is fixedly connected to the lightning protection strip 30 through the second fixing bolt. It can be understood that, in this embodiment, through holes can be temporarily or pre-drilled on the lightning protection strip 30 and the support frame 20. When the lightning protection strip 30 is installed on the support frame 20, the support frame 20 and the lightning protection strip 30 can be fixedly connected by passing the second fixing bolt through the through hole. In this embodiment, the support frame 20 and the lightning protection strip 30 are fixedly connected by the second fixing bolt without welding, which reduces the installation difficulty between the support frame 20 and the lightning protection strip 30.

[0049] In some embodiments, the second end of the support frame 20 is provided with at least two sets of second fixing bolts. It is understood that in this embodiment, the support frame 20 and the lightning protection strip 30 are connected by two or more sets of second fixing bolts. By providing at least two sets of second fixing bolts between the support frame 20 and the lightning protection strip 30, the stability of the connection between the support frame 20 and the lightning protection strip 30 is effectively increased.

[0050] In another alternative embodiment, such as Figure 3 As shown, the second end of the support frame 20 is provided with a snap-fit ​​connector 220. The lightning protection strip 30 is fixedly connected to the second end of the support frame 20 through the snap-fit ​​connector 220. It can be understood that in this embodiment, the lightning protection strip 30 is indirectly fixed to the support frame 20 through the snap-fit ​​connector 220, which can effectively avoid damage to the conductor coating of the lightning protection strip 30. This not only significantly improves the long-term anti-corrosion performance and extends the system life, but also ensures a stable low grounding resistance and improves the reliability and safety of the system.

[0051] In this embodiment, as Figure 4As shown, the snap-fit ​​component 220 includes a snap-fit ​​portion 221 and a connecting portion 222. The snap-fit ​​portion 221 has a "U"-shaped structure, and the opening of the snap-fit ​​portion faces the support frame 20. Connecting portions are provided on both sides of the opening of the snap-fit ​​portion. The snap-fit ​​portion is connected to the support frame 20 through the connecting portions, and a snap-fit ​​structure for snapping the lightning protection strip 30 is formed between the snap-fit ​​portion and the support frame 20. It can be understood that in this embodiment, the snap-fit ​​component 220 has an overall "U"-shaped structure. When fixing the lightning protection strip 30 to the support frame 20, the lightning protection strip 30 is snapped into the snap-fit ​​portion, and then the lightning protection strip 30 is fixed to the support frame 20 through the connecting portions on both sides of the snap-fit ​​portion, which reduces the installation difficulty of the lightning protection strip 30.

[0052] In some embodiments, such as Figure 5 As shown, the system also includes a connecting device 40. Each row of photovoltaic panels 10 in the photovoltaic panel matrix is ​​equipped with a set of lightning protection strips 30, and multiple lightning protection strips 30 are connected to the connecting device 40. For example, taking a 3x3 photovoltaic panel matrix as an example, in this embodiment, the photovoltaic panels 10 in the photovoltaic panel matrix are divided into 3 groups according to the arrangement of the photovoltaic panel matrix, with each row of photovoltaic panels 10 forming one group. Each of the 3 rows of photovoltaic panels 10 is equipped with a set of lightning protection strips 30. The connecting device 40 is set perpendicular to the direction of the lightning protection strips 30 and is simultaneously connected to the above 3 groups of lightning protection strips 30. In this embodiment, the connecting device 40 connects the 3 groups of lightning protection strips 30, electrically connecting the independent lightning protection strips 30 into an integrated grid system. When lightning current enters the system, it can cause the potential of the entire system to rise rapidly to similar levels simultaneously, greatly reducing the potential difference between different points within the system, thereby effectively preventing dangerous internal spark discharge.

[0053] In some embodiments, the connecting device 40 includes a branch connecting strip 410 and a branch connector 420. The branch connecting strip 410 is disposed on the side of the photovoltaic panel 10 near the roof and is connected to the lightning protection strip 30 through the branch connector 420. It can be understood that in this embodiment, the branch connecting strip 410 is suspended below the lightning protection strip 30 through the branch connector 420, eliminating the need to install support members in the main structure of the house to support and connect the branch connecting strip 410. This avoids the phenomenon that drilling holes in the main structure of the house would damage the structural waterproof layer.

[0054] It should be noted that this application is not limited to the above-described embodiments. The above embodiments are merely examples, and any embodiments with the same structure and effect as the technical concept within the scope of this application are included in the technical scope of this application. Furthermore, various modifications that can be conceived by those skilled in the art to the embodiments, and other ways of constructing by combining some of the constituent elements of the embodiments, without departing from the spirit of this application, are also included in the scope of this application.

Claims

1. A lightning protection device for photovoltaic panel assembly, characterized in that, A photovoltaic panel matrix composed of a plurality of photovoltaic panels is arranged on the roof of a building, and the photovoltaic panels are installed on the roof of the building through fixing frames; the assembled lightning protection device applied to photovoltaic panels comprises: a plurality of support frames, wherein the plurality of support members are sequentially arranged along the arrangement direction of the photovoltaic panels in the photovoltaic panel matrix, each support frame comprises a first end and a second end, the first end of the support frame is configured to be fixedly connected with the fixing frame, and the second end of the support frame protrudes out of the photovoltaic panel and extends towards a direction in which the photovoltaic panel is away from the roof; a lightning protection belt, wherein the lightning protection belt is arranged along the arrangement direction of the photovoltaic panels in the photovoltaic panel matrix, and the second ends of the plurality of support frames are all connected to the lightning protection belt.

2. The photovoltaic panel assembly lightning protection device according to claim 1, characterized in that, a first fixing bolt is arranged at the first end of the support frame, and the first end of the support frame is fixedly connected with the fixing frame through the first fixing bolt.

3. The photovoltaic panel assembly lightning protection device according to claim 2, characterized in that, at least two groups of the first fixing bolts are arranged at the first end of the support frame.

4. The photovoltaic panel assembled lightning protection device according to claim 1, characterized in that, a hoop member is arranged at the first end of the support frame, and the first end of the support frame is fixedly connected with the fixing frame through the hoop member.

5. The photovoltaic panel assembly lightning protection device according to claim 1, characterized in that, a second fixing bolt is arranged at the second end of the support frame, and the second end of the support frame is fixedly connected with the lightning protection belt through the second fixing bolt.

6. The photovoltaic panel assembly lightning protection device according to claim 5, characterized in that, at least two groups of the second fixing bolts are arranged at the second end of the support frame.

7. The photovoltaic panel assembly lightning protection device according to claim 1, characterized in that, a clamping member is arranged at the second end of the support frame, and the lightning protection belt is fixedly connected to the second end of the support frame through the clamping member.

8. The photovoltaic panel assembly lightning protection device according to claim 7, characterized in that, the clamping member comprises: a clamping portion, wherein the clamping portion is in a U-shaped structure, and an opening of the clamping portion is arranged towards the support frame; a connecting portion, wherein the connecting portions are arranged on both sides of the opening of the clamping portion, the clamping portion is connected with the support frame through the connecting portions, and a clamping structure for clamping the lightning protection belt is formed between the clamping portion and the support frame.

9. The photovoltaic panel assembly lightning protection device according to claim 1, characterized in that, the device further comprises a connecting device, one group of the lightning protection belt is arranged on each row of the photovoltaic panels in the photovoltaic panel matrix, and the plurality of lightning protection belts are all connected with the connecting device.

10. The photovoltaic panel assembly lightning protection device according to claim 9, characterized in that, the connecting device comprises a branch connecting belt and a branch connecting member, the branch connecting belt is arranged on one side of the photovoltaic panels close to the roof, and is connected with the lightning protection belt through the branch connecting member.

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