Lightning receptor and photovoltaic power plant

Abstract

The utility model provides a kind of lightning receptor and photovoltaic power station, lightning receptor includes: bottom plate and first side plate;Along the circumference of the bottom plate, one side of the first side plate is connected to one side of the bottom plate;The first side plate is bent relative to the bottom plate;The side of the first side plate away from the bottom plate is provided with a plurality of first sawteeth, the tip of the first sawteeth is towards the direction away from the bottom plate.The structure of the lightning receptor is simple, can be designed to be relatively miniaturized, realize low cost, at the same time, the height of the first side plate protruding from the bottom plate can be designed to be smaller, reduce shadow shielding, improve the installation capacity of roof on photovoltaic module, increase the utilization rate of roof.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic power generation technology, and in particular to a lightning arrester and a photovoltaic power station. Background Technology

[0002] For metal-roofed factory buildings, effective lightning protection cannot be provided when photovoltaic (PV) modules are installed, easily damaging the modules. Related technologies utilize the principle of point discharge to design lightning arresters that provide effective lightning protection for PV modules. However, current lightning arresters are relatively expensive, and excessively high arresters can create shadows, reducing the roof's capacity for PV module installation and decreasing roof utilization. Utility Model Content

[0003] In view of the above problems, embodiments of the present invention are proposed to provide a lightning arrester and a photovoltaic power station that overcomes or at least partially solves the above problems.

[0004] To address the aforementioned problems, this utility model discloses a lightning arrester for use in a photovoltaic power station, comprising: a base plate and a first side plate; Along the circumference of the base plate, one side of the first side plate is connected to one side of the base plate; the first side plate is bent relative to the base plate; The first side plate has a plurality of first serrations on the side opposite to the bottom plate, with the tips of the first serrations pointing in the direction opposite to the bottom plate.

[0005] Optionally, the lightning arrester further includes a second side plate, which is connected to the base plate and is arranged at intervals from the first side plate along the circumference of the base plate. Along the thickness direction of the base plate, the second side plate and the first side plate are bent on the same side relative to the base plate; The second side plate has a plurality of second serrations on the side opposite to the bottom plate, with the tips of the second serrations pointing in the direction opposite to the bottom plate.

[0006] Optionally, the first saw teeth and the second saw teeth are symmetrically arranged on opposite sides of the base plate.

[0007] Optionally, the first saw tooth has a first tooth tip angle α, 30°≤α≤70°; And / or, the second saw tooth has a second tooth tip angle β, 30°≤β≤70°.

[0008] Optionally, the lightning arrester further includes a first connecting plate and a second connecting plate, which are respectively disposed on opposite sides of the base plate along the circumference of the base plate; Both the first connecting plate and the second connecting plate are bent relative to the base plate; Along the thickness direction of the base plate, the first connecting plate and the first side plate protrude from opposite sides of the base plate.

[0009] Optionally, the first side plate, the first connecting plate, and the second connecting plate are arranged at intervals along the circumference of the base plate.

[0010] Secondly, this utility model discloses a photovoltaic power station, including: a mounting rail, photovoltaic modules, and the aforementioned lightning arrester; The photovoltaic module is mounted on the mounting rail; The base plate of the lightning arrester is fixedly installed on the mounting rail, and the lightning arrester is arranged in the gap between two adjacent photovoltaic modules.

[0011] Optionally, the first side plate of the lightning arrester abuts against one side edge of the photovoltaic module, and the first side plate is used to limit the photovoltaic module.

[0012] Optionally, the lightning arrester includes a first side plate and a second side plate, which are connected to opposite sides of the base plate along the circumference of the base plate. The two adjacent photovoltaic modules are a first photovoltaic module and a second photovoltaic module, respectively. The edge of the first photovoltaic module facing the second photovoltaic module abuts against the first side plate, and the edge of the second photovoltaic module facing the first photovoltaic module abuts against the second side plate.

[0013] Optionally, the photovoltaic module includes a frame that is electrically connected to a side panel of the lightning arrester.

[0014] Optionally, the mounting rail includes a mounting surface; the base plates of both the photovoltaic module and the lightning arrester are mounted on the mounting surface; Along a direction perpendicular to the mounting surface, the maximum height of the photovoltaic module protruding from the mounting surface is L1, and the straight-line distance from the tip of the first tooth of the lightning arrester to the mounting surface is L2. Where 0≤L1-L2≤3mm, or 0≤L2-L1≤7mm.

[0015] The embodiments of this utility model have the following advantages: In this embodiment of the utility model, the lightning arrester includes a base plate and a first side plate connected to one side of the base plate in the circumferential direction. A plurality of first serrations are provided on the side of the first side plate away from the base plate, and the tips of the first serrations are designed to face the direction away from the base plate. The first serrations can be used to achieve lightning interception. Moreover, the structure of the lightning arrester is simple and can be designed to be relatively small, achieving low cost. At the same time, the lightning interception effect is better by using the tips of multiple first serrations. The height of the first side plate protruding from the base plate can be designed to be small, reducing shading and increasing the installation capacity of photovoltaic modules on the roof, thereby increasing the utilization rate of the roof.

[0016] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0017] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of the structure of a lightning arrester according to this utility model; Figure 2 This is a utility model Figure 1 The image shows the front view of the lightning arrester. Figure 3 This is a utility model Figure 1 The diagram shows a top view of the lightning arrester. Figure 4 This is a utility model Figure 1 The side view of the lightning arrester is shown in the figure. Figure 5 This is a schematic diagram of a symmetrically distributed first and second sawtooth teeth according to this utility model. Figure 6 This is a schematic diagram of an asymmetrical distribution of the first and second saw teeth according to this utility model; Figure 7 This is a schematic diagram of another lightning arrester according to the present invention; Figure 8 This is a utility model Figure 7 The side view of the lightning arrester is shown in the figure. Figure 9 This is a utility model Figure 7 The diagram shows a top view of the lightning arrester. Figure 10 This is a utility model Figure 7 The image shows the front view of the lightning arrester. Figure 11 This is a schematic diagram of the structure of a mounting guide rail according to this utility model; Figure 12This is an assembly diagram of a lightning arrester and a mounting rail according to this utility model. Figure 13 This is a schematic diagram of a lightning arrester and a photovoltaic module of this utility model installed on an installation rail.

[0018] Explanation of reference numerals in the attached figures: 10. Lightning arrester; 11. Base plate; 111. First mounting hole; 112. Second mounting hole; 12. First side plate; 121. First serration; 13. Second side plate; 131. Second serration; 14. First connecting plate; 141. First connecting hole; 15. Second connecting plate; 151. Second connecting hole; 20. Install guide rails; 21. Positioning structure; 22. Joint gaps; 30. Photovoltaic modules. Detailed Implementation

[0019] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0020] The terms "first" and "second" in the specification and claims of this application may explicitly or implicitly include one or more of the features. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0021] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model 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, and therefore should not be construed as a limitation of this utility model.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] In this embodiment of the utility model, the photovoltaic power station is a complete system that converts solar energy into electrical energy and achieves grid-connected or off-grid power supply. The photovoltaic power station includes a power generation system and a lightning protection system.

[0024] Specifically, the power generation system mainly collects solar energy at the negative electrode and converts it into direct current. The power generation system includes photovoltaic modules 30 and photovoltaic support structures. The photovoltaic modules 30 are the core unit of photoelectric conversion and the "basic unit" of the power station's power generation. Specifically, the lightning protection system may include a lightning arrester 10, down conductors, and a grounding device. The down conductors can be connected to the lightning arrester 10 and the grounding device respectively to conduct lightning current. The grounding device may include a grounding electrode and a grounding grid, which are buried underground to conduct lightning current into the earth.

[0025] The lightning arrester 10 has been further improved in this embodiment of the utility model. An example is given of some components assembled in a photovoltaic power station using the lightning arrester 10. For instance, the photovoltaic power station includes a mounting rail 20, and both the photovoltaic module 30 and the lightning arrester 10 are mounted on the mounting rail 20.

[0026] The lightning arrester 10 described in this embodiment of the invention is used in a photovoltaic power station, such as... Figures 1 to 4 As shown, the lightning arrester 10 includes: a base plate 11 and a first side plate 12; along the circumference of the base plate 11, one side of the first side plate 12 is connected to one side of the base plate 11; the first side plate 12 is bent relative to the base plate 11; a plurality of first serrations 121 are provided on the side of the first side plate 12 away from the base plate 11, and the tips of the first serrations 121 face away from the base plate 11.

[0027] In this embodiment of the utility model, the lightning arrester 10 includes a base plate 11 and a first side plate 12 connected to the circumferentially upward side of the base plate 11. A plurality of first serrations 121 are provided on the side of the first side plate 12 away from the base plate 11, and the tips of the first serrations 121 are designed to face away from the base plate 11. The first serrations 121 can be used to intercept lightning. Moreover, the structure of the lightning arrester 10 is simple and can be designed to be relatively small, achieving low cost. At the same time, the lightning interception effect is better by using the tips of the multiple first serrations 121 to intercept lightning. The height of the first side plate 12 protruding from the base plate 11 can be designed to be small, reducing shading and increasing the installation capacity of the photovoltaic modules 30 on the roof, thereby increasing the utilization rate of the roof.

[0028] Specifically, the lightning arrester 10 can actively receive direct lightning strikes and safely conduct the powerful lightning current to the ground, thereby preventing the protected object from being damaged by direct lightning strikes. In this embodiment of the invention, the lightning arrester 10 can be used in a photovoltaic power station to provide lightning protection for the photovoltaic modules 30.

[0029] Specifically, the lightning arrester 10 can be made of metallic material, allowing it to function as a conductor and effectively and safely conduct lightning current to the ground. Specifically, such as... Figure 1 As shown, the lightning arrester 10 includes a base plate 11 and a first side plate 12. It can be understood that both the first side plate 12 and the base plate 11 are made of metal.

[0030] Specifically, one side of the first side plate 12 is connected to the bottom plate 11 on its circumferential side. The first side plate 12 is bent relative to the bottom plate 11, so that the first side plate 12 and the bottom plate 11 can be set at an angle. The angle can be a right angle or close to a right angle, which makes the structure of the lightning arrester 10 relatively simple, facilitates the miniaturization of the lightning arrester 10, and achieves low cost and easy installation.

[0031] In some embodiments, the first side plate 12 and the base plate 11 can be integrally formed, making the lightning arrester 10 a one-piece structure. In other embodiments, the first side plate 12 and the base plate 11 can also be spliced ​​and fixed by welding, bolting, or other methods.

[0032] Specifically, by processing the side of the first side plate 12 away from the base plate 11, a first serration 121 can be obtained, with the tip of the first serration 121 facing away from the base plate 11. When the lightning arrester 10 is installed in a photovoltaic power station, the base plate 11 is located below the first serration 121, which ensures that the tip of the first serration 121 is struck by lightning first.

[0033] Understandably, when the lightning arrester 10 is in an electrostatic field, the charge will accumulate at the tip of the first sawtooth 121. The tip of the first sawtooth 121 actively establishes an ionization channel, causing lightning to strike itself rather than surrounding components first, and then the current is guided to the ground.

[0034] Specifically, there are multiple first serrations 121, and the tip of each first serration 121 is equivalent to a discharge position. The tips of multiple first serrations 121 form multiple discharge positions. That is, the tips of multiple first serrations 121 work together to form a wider high electric field coverage area, which increases the probability of being hit by lightning first, improves lightning interception efficiency, achieves better lightning interception effect, and realizes better lightning protection function.

[0035] In some embodiments, the base plate 11 can be a rectangular plate, having a length direction, a width direction, and a thickness direction. The first sawtooth 121 is located on one side of the base plate 11 along its thickness direction. In this embodiment of the invention, the distance H1 between the tip of the first sawtooth 121 and the base plate 11 along its thickness direction can be designed to be shorter, which can avoid the first sawtooth 121 being designed too high and causing shadow obstruction. Moreover, the miniaturization of the lightning arrester 10 facilitates construction convenience, safety, and ease of subsequent operation and maintenance.

[0036] In some embodiments, the first side plate 12 can be connected to one side of the base plate 11 along the width direction. In other embodiments, the first side plate 12 can be connected to one side of the base plate 11 along the length direction. This allows for a variety of ways to fit the base plate 11 and the first side plate 12 together.

[0037] In other embodiments, the base plate 11 may also be a circular plate, an elliptical plate, or a polygonal plate, etc. The shape of the base plate 11 is not specifically limited in the embodiments of this utility model.

[0038] Specifically, the shape of the first side plate 12 can be adapted to the shape of the base plate 11. For example, when the base plate 11 is a rectangular plate or a polygonal plate, the corresponding first side plate 12 can be a flat plate or a bent plate, etc.; when the base plate 11 is a circular plate or an elliptical plate, the corresponding first side plate 12 can be an arc-shaped plate. The length of the first side plate 12 extending circumferentially along the base plate 11 is not specifically limited in this embodiment of the invention.

[0039] Optionally, the lightning arrester 10 further includes a second side plate 13, which is connected to the base plate 11. Along the circumference of the base plate 11, the second side plate 13 and the first side plate 12 are arranged at intervals. Along the thickness direction of the base plate 11, the second side plate 13 and the first side plate 12 are bent on the same side of the base plate 11. The side of the second side plate 13 away from the base plate 11 is provided with a plurality of second serrations 131, the tips of the second serrations 131 facing away from the base plate 11.

[0040] In this embodiment of the utility model, the second side plate 13 and the first side plate 12 are located on the same side of the base plate 11. A plurality of second serrations 131 are provided on the side of the second side plate 13 away from the base plate 11, and the tips of the second serrations 131 are designed to face away from the base plate 11. The second serrations 131 can be used to intercept lightning, thereby increasing the discharge position, further expanding the high electric field coverage range, improving the lightning interception efficiency, and achieving better lightning protection function.

[0041] Specifically, the second serration 131 is obtained by processing the side of the second side plate 13 away from the base plate 11, with the tip of the second serration 131 facing away from the base plate 11. The material of the second side plate 13 is chosen to be metal to improve the reliability of the discharge position formed by the tip of the second serration 131. When the lightning arrester 10 is installed in the photovoltaic power station, the base plate 11 is located below the second serration 131, which ensures that the tip of the second serration 131 is struck by lightning first.

[0042] Specifically, there are multiple second serrations 131, and the tip of each second serration 131 corresponds to a discharge position. The tips of multiple second serrations 131 form multiple discharge positions. In this embodiment of the invention, the tips of the first serration 121 and the tips of the second serrations 131 work together to form a wider high electric field coverage area.

[0043] Specifically, along the thickness direction of the base plate 11, the distance H2 between the tip of the second sawtooth 131 and the base plate 11 can be designed to be shorter, which can avoid the second sawtooth 131 being designed too high and causing shadow occlusion. In this embodiment of the present invention, the distance H1 between the tip of the first sawtooth 121 and the base plate 11 and the distance H2 between the tip of the second sawtooth 131 and the base plate 11 can be designed to be the same or different.

[0044] Specifically, the number of the first saw teeth 121 and the number of the second saw teeth 131 may be the same or different, and the size of the first saw teeth 121 and the size of the second saw teeth 131 may be the same or different.

[0045] In some optional embodiments of this utility model, the first sawtooth 121 and the second sawtooth 131 are symmetrically arranged on opposite sides of the base plate 11, which can improve the structural stability of the lightning arrester 10.

[0046] In some alternative embodiments of this utility model, the first sawtooth 121 and the second sawtooth 131 are arranged at intervals along the circumference of the base plate 11. The first sawtooth 121 and the second sawtooth 131 are asymmetrically arranged on opposite sides of the base plate 11, which can improve the diversity of the arrangement of the first sawtooth 121 and the second sawtooth 131, thereby improving the structural diversity of the lightning arrester 10.

[0047] In this embodiment of the present invention, the tooth height of the first saw tooth 121 may be greater than or less than the tooth height of the second saw tooth 131; the tooth width of the first saw tooth 121 may be greater than or less than the tooth width of the second saw tooth 131; the tooth thickness of the first saw tooth 121 may be greater than or less than the tooth thickness of the second saw tooth 131; the number of the first saw teeth 121 may be greater than or less than the number of the second saw teeth 131; and the distance H1 between the tip of the first saw tooth 121 and the bottom plate 11 may be greater than or less than the distance H2 between the tip of the second saw tooth 131 and the bottom plate 11.

[0048] Specifically, the first sawtooth 121 has a first tooth tip angle α. If the first tooth tip angle α is designed to be too small, the charge will easily accumulate at the tip of the first sawtooth 121, forming an extremely strong local electric field. The excessively strong electric field will prematurely break down the surrounding air, forming a small-scale continuous discharge, consuming energy, and greatly reducing the effective lightning attraction range of the first sawtooth 121, making it unable to effectively intercept distant lightning. If the first tooth tip angle α is designed to be too large, the charge will be more evenly distributed at the tip of the first sawtooth 121, making it impossible to form a high-density charge accumulation area at the tip of the first sawtooth 121. The evenly distributed charge cannot generate a sufficiently strong electric field, which is insufficient to break down the air and guide the lightning discharge channel to develop towards the tip of the first sawtooth 121. This results in the tip of the first sawtooth 121 lacking an electric field advantage, leading to lightning interception failure. Therefore, in this embodiment of the utility model, the angle α of the first tooth tip of the first sawtooth 121 is controlled to be 30°≤α≤70° in order to reasonably design the electric field intensity at the tip of the first sawtooth 121, so that the electric field intensity at the tip of the first sawtooth 121 is more concentrated and attracts lightning more effectively, thus ensuring the lightning interception effect of the first sawtooth 121.

[0049] Specifically, the first tooth tip angle α of the first sawtooth 121 refers to the included angle formed by the intersection of the tooth surfaces of the first sawtooth 121 at their tips. For example, the first tooth tip angle α can be 30°, 32°, 35°, 40°, 48°, 50°, 55°, 60°, 66°, or 70°, etc.

[0050] Specifically, the second sawtooth 131 has a second tooth tip angle β. For the same reason as the first sawtooth 121, in this embodiment of the utility model, the second tooth tip angle β of the second sawtooth 131 is controlled to be 30°≤β≤70° in order to reasonably design the second tooth tip angle β of the second sawtooth 131, so that the electric field intensity at the tip of the second sawtooth 131 is more concentrated, attracting lightning more effectively and ensuring the lightning interception effect of the second sawtooth 131.

[0051] Specifically, the second tooth tip angle β of the second serration 131 refers to the included angle formed by the intersection of the tooth surfaces of the second serration 131 at their tips. For example, the second tooth tip angle β can be 30°, 38°, 40°, 42°, 45°, 50°, 55°, 60°, 66°, or 70°, etc.

[0052] Optionally, the lightning arrester 10 further includes a first connecting plate 14 and a second connecting plate 15. Along the circumference of the base plate 11, the first connecting plate 14 and the second connecting plate 15 are respectively connected to opposite sides of the base plate 11. Both the first connecting plate 14 and the second connecting plate 15 are bent relative to the base plate. Along the thickness direction of the base plate 11, the first connecting plate 14 and the first side plate 12 protrude from opposite sides of the base plate 11.

[0053] In this embodiment of the utility model, the first connecting plate 14 and the second connecting plate 15 are respectively disposed on opposite sides of the base plate 11 and protrude from the base plate 11 away from the first side plate 12, so that the first connecting plate 14 and the second connecting plate 15 are disposed opposite to each other. The first connecting plate 14, the base plate 11 and the second connecting plate 15 can enclose and form a limiting space. This limiting space can be used to cooperate with the mounting rail 20 to improve the reliability of assembling the lightning arrester 10 with the mounting rail 20.

[0054] Specifically, such as Figure 12 As shown, the first connecting plate 14 and the second connecting plate 15 can be snapped onto both sides of the mounting rail 20, which can improve the ease of installation of the lightning arrester 10. The first connecting plate 14 and the second connecting plate 15 can be symmetrically or asymmetrically arranged on opposite sides of the base plate 11.

[0055] Specifically, the first connecting plate 14 and the second connecting plate 15 are made of metal. Both the first connecting plate 14 and the second connecting plate 15 are conductive.

[0056] Specifically, the first connecting plate 14 and the second connecting plate 15 can be arranged on both sides of the base plate 11 along its width direction, or the first connecting plate 14 and the second connecting plate 15 can be arranged on both sides of the base plate 11 along its length direction. The first connecting plate 14 and the second connecting plate 15 can be symmetrically arranged on opposite sides of the base plate 11.

[0057] Specifically, along the thickness direction of the base plate 11, the base plate 11 may include a first surface and a second surface, both of which are large surfaces of the base plate 11. The first side plate 12 and the second side plate 13 may protrude from the first surface, and the first connecting plate 14 and the second connecting plate 15 may protrude from the second surface. The first serration 121 on the first side plate 12 and the second serration 131 on the second side plate 13 are both used to receive lightning strikes.

[0058] Optionally, the first side plate 12, the first connecting plate 14, and the second connecting plate 15 are arranged at intervals along the circumference of the base plate 11, so that the connecting plate and the side plate are connected to different sides of the circumference of the base plate 11. This can improve the convenience of manufacturing the connecting plate and the side plate, improve the reliability of the integrated molding of the lightning arrester 10, and save manufacturing costs.

[0059] For example, when making the lightning arrester 10 using a sheet material, the sheet material can be cut first, and at least a portion of one edge of the sheet material can be bent towards its upper surface to obtain a side plate. At least a portion of the adjacent side edges of the base plate 11 can be bent towards its lower surface to obtain a connecting plate. It should be noted that the side plate in this embodiment of the present invention includes a first side plate 12 and a second side plate 13, and the connecting plate includes a first connecting plate 14 and a second connecting plate 15.

[0060] Specifically, the first side plate 12, the first connecting plate 14, the second side plate 13 and the second connecting plate 15 can be arranged sequentially and at intervals along the circumference of the base plate 11, which is beneficial to improving the structural stability of the lightning arrester 10.

[0061] Optionally, one of the first connecting plate 14 and the second connecting plate 15 is disposed opposite to the first side plate 12, which can improve the structural strength of the lightning arrester 10.

[0062] Specifically, the base plate 11 may include a first layer plate and a second layer plate stacked together. The first layer plate may be connected to the side plate, and the second layer plate may be connected to the connecting plate, so as to improve the reliability of the side plate and the connecting plate protruding along the opposite sides of the base plate 11 along the thickness direction of the base plate 11.

[0063] Specifically, the first side plate 12 and the first connecting plate 14 can be arranged on the same side of the base plate 11 in its circumferential direction, and the first side plate 12 and the first connecting plate 14 can protrude from opposite sides of the base plate 11 along the thickness direction of the base plate 11. In some embodiments, the second side plate 13 and the second connecting plate 15 can be arranged on the same side of the base plate 11 in its circumferential direction, and the second side plate 13 and the second connecting plate 15 can protrude from opposite sides of the base plate 11 along the thickness direction of the base plate 11. Optionally, the first connecting plate 14 is provided with a first connecting hole 141, and the second connecting plate 15 is provided with a second connecting hole 151.

[0064] In this embodiment of the utility model, when installing the lightning arrester 10, fasteners can be used to install it with the first connecting hole 141 and the second connecting hole 151 respectively, which is a relatively convenient installation method.

[0065] Specifically, the first connecting hole 141 and the second connecting hole 151 can be symmetrically or asymmetrically arranged on opposite sides of the base plate 11; the shapes of the first connecting hole 141 and the second connecting hole 151 can be the same or different; the opening size of the first connecting hole 141 and the second connecting hole 151 can be the same or different, etc.

[0066] Optionally, the base plate 11 has a first mounting hole 111 and a second mounting hole 112 spaced apart.

[0067] In this embodiment of the invention, fasteners can be used to install the lightning arrester 10 with the first mounting hole 111 and the second mounting hole 112, thereby making the installation more convenient and ensuring the reliability and stability of lightning interception using the tip of the first serration 121. Furthermore, fastening the base plate 11 to the mounting rail 20 with fasteners can also improve the reliability of the equipotential bonding.

[0068] Specifically, fasteners can be bolts, or mating screws and nuts, etc.

[0069] Specifically, the shapes of the first mounting hole 111 and the second mounting hole 112 may be the same or different; the opening sizes of the first mounting hole 111 and the second mounting hole 112 may be the same or different, etc.

[0070] In some embodiments, the first mounting hole 111 and the second mounting hole 112 are spaced apart along the length of the base plate 11, which can realize two mounting points along the length of the base plate 11 to ensure the reliability of the installation of the lightning arrester 10.

[0071] In this embodiment of the utility model, the first mounting hole 111 and the second mounting hole 112 can be symmetrically or nearly symmetrically opened on the base plate 11 along the length direction of the base plate 11.

[0072] In other embodiments, the first mounting hole 111 and the second mounting hole 112 are spaced apart along the width direction of the base plate 11, which can realize two mounting points along the width direction of the base plate 11 to ensure the reliability of the installation of the lightning arrester 10.

[0073] In this embodiment of the utility model, the first mounting hole 111 and the second mounting hole 112 can be symmetrically or nearly symmetrically opened on the base plate 11 along the width direction of the base plate 11.

[0074] In some other embodiments, the first mounting hole 111 and the second mounting hole 112 are spaced apart along the length of the base plate 11; and the first mounting hole 111 and the second mounting hole 112 are spaced apart along the width of the base plate 11.

[0075] In this embodiment of the utility model, the first mounting hole 111 and the second mounting hole 112 can be opened at opposite positions on the base plate 11, which can ensure the reliability of the installation of the lightning arrester 10.

[0076] In this embodiment of the utility model, the first mounting hole 111 and the second mounting hole 112 can be symmetrically or nearly symmetrically opened on the base plate 11 along the diagonal direction.

[0077] Specifically, such as Figure 11 As shown, the back of the mounting rail 20 has a splicing gap 22, which can be filled with structural adhesive. Considering that the middle area of ​​the mounting rail 20 has a splicing gap 22, the first mounting hole 111 and the second mounting hole 112 can be staggered along the width direction of the base plate 11, so that the first mounting hole 111 and the second mounting hole 112 can avoid the splicing gap 22, thereby improving the reliability of the assembly between the base plate 11 and the mounting rail 20.

[0078] Optionally, the connection between the base plate 11 and the first side plate 12 is a rounded transition, which can improve the stress problem at the connection between the base plate 11 and the first side plate 12, thereby improving the reliability of the connection between the base plate 11 and the first side plate 12.

[0079] Optionally, the connection between the base plate 11 and the second side plate 13 is rounded, which can improve the stress problem at the connection between the base plate 11 and the second side plate 13 and improve the reliability of the connection between the base plate 11 and the second side plate 13.

[0080] The lightning arrester described in this embodiment of the present invention has at least the following advantages: In this embodiment of the utility model, the lightning arrester includes a base plate and a first side plate connected to one side of the base plate in the circumferential direction. A plurality of first serrations are provided on the side of the first side plate away from the base plate, and the tips of the first serrations are designed to face the direction away from the base plate. The first serrations can be used to achieve lightning interception. Moreover, the structure of the lightning arrester is simple and can be designed to be relatively small, achieving low cost. At the same time, the lightning interception effect is better by using the tips of multiple first serrations. The height of the first side plate protruding from the base plate can be designed to be small, reducing shading and increasing the installation capacity of photovoltaic modules on the roof, thereby increasing the utilization rate of the roof.

[0081] Secondly, this utility model also discloses a photovoltaic power station, which may include: a mounting rail 20, a photovoltaic module 30 and the aforementioned lightning arrester 10; the photovoltaic module 30 is mounted on the rail; the base plate 11 of the lightning arrester 10 is fixedly mounted to the mounting rail 20, and the lightning arrester 10 is arranged in the gap between two adjacent photovoltaic modules 30.

[0082] In this embodiment of the invention, after the mounting rail 20 is laid on the roof, the photovoltaic module 30 is then installed onto the mounting rail 20. The flatness of the photovoltaic module 30 can be adjusted using the mounting rail 20, which improves the reliability of the photovoltaic module 30 installation. Fixing the base plate 11 of the lightning arrester 10 to the mounting rail 20 achieves equipotential bonding, eliminating potential differences and preventing potential backflash.

[0083] Specifically, such as Figure 11 As shown, a positioning structure 21 can be provided on the mounting rail 20 to indicate the assembly position with the lightning arrester 10, which is more convenient. The positioning structure 21 can be a positioning line, a positioning groove, or a positioning screw, etc., and this embodiment of the invention does not specifically limit its application.

[0084] Optionally, the first side plate 12 of the lightning arrester 10 abuts against one side edge of the photovoltaic module 30. The first side plate 12 can be used to limit the photovoltaic module 30, which can save tooling materials for limiting the photovoltaic module 30.

[0085] Specifically, the lightning arrester 10 includes a first side plate 12 and a second side plate 13 distributed circumferentially along the base plate 11. Since the lightning arrester 10 is arranged in the gap between two adjacent photovoltaic modules 30, in some cases, the first side plate 12 can be used to limit one photovoltaic module 30, and in other cases, the second side plate 13 can also abut against the edge of the photovoltaic module 30 to limit two adjacent photovoltaic modules 30 through the first side plate 12 and the second side plate 13.

[0086] In some embodiments, such as Figure 5 and Figure 6 As shown, along the circumference of the base plate 11, the first side plate 12 and the second side plate 13 can be connected to the opposite sides of the base plate 11; the two adjacent photovoltaic modules 30 are the first photovoltaic module and the second photovoltaic module, respectively. The edge of the first photovoltaic module facing the second photovoltaic module abuts against the side of the first side plate 12, and the edge of the second photovoltaic module facing the first photovoltaic module abuts against the second side plate 13.

[0087] In this embodiment, the first side plate 12 and the second side plate 13 can limit and guide two adjacent photovoltaic modules 30, which can improve the reliability of the installation of photovoltaic modules 30 and mounting rail 20. Therefore, it is possible to avoid designing limiting fixtures specifically for photovoltaic modules 30, so that the first side plate 12 and the second side plate 13 can be used as multi-functional accessories with high cost performance.

[0088] Specifically, such as Figure 13 As shown, the gap between two adjacent photovoltaic modules 30 is W2, and the maximum distance between the first side plate 12 and the second side plate 13 is W1, where W2 = W1.

[0089] Specifically, the photovoltaic module 30 described in this embodiment of the present invention can be a frameless module or a framed module, and this embodiment of the present invention does not make a specific limitation on this.

[0090] Specifically, in this embodiment of the utility model, the frame is removed and a lightning arrester 10 is arranged, and the lightning arrest efficiency can reach 46%. Compared with directly using the frame of the photovoltaic module 30 for lightning arrest, the lightning arrest efficiency is increased by 25%, which can more effectively protect the photovoltaic module 30.

[0091] In some embodiments, the photovoltaic module 30 includes a frame that is electrically connected to a first side plate 12 of the lightning arrester 10.

[0092] In this embodiment, the frame and the lightning arrester 10 can receive lightning simultaneously, resulting in higher lightning reception efficiency.

[0093] Specifically, the frame can be mounted on the mounting rail 20, and the frame and the lightning arrester 10 can be abutted or bolted together, etc., but this embodiment does not specify the specific method. The frame can be made of steel, aluminum, or alloy, etc.

[0094] Specifically, the frame of the photovoltaic module 30 can also abut against or be bolted to the second side plate 13 of the lightning arrester 10, so that the frame of the photovoltaic module 30 and the second side plate 13 of the lightning arrester 10 can be electrically connected.

[0095] Optionally, the mounting rail 20 includes a mounting surface; both the photovoltaic module 30 and the base plate 11 of the lightning arrester 10 are mounted on the mounting surface; along the direction perpendicular to the mounting surface, the maximum height of the photovoltaic module 30 protruding from the mounting surface is L1, and the straight-line distance from the tip of the first serration 121 of the lightning arrester 10 to the mounting surface is L2; ​​wherein, 0≤L1-L2≤3mm, or 0≤L2-L1≤7mm.

[0096] In this embodiment, 0≤L1-L2≤3mm, or 0≤L2-L1≤7mm, so that the height difference between the photovoltaic module 30 and the first sawtooth 121 is small, which can prevent the first sawtooth 121 from blocking the photovoltaic module 30 and ensure the power generation efficiency of the photovoltaic module 30.

[0097] Specifically, the base plate 11 can be installed onto the mounting surface by means of adhesive bonding or bolt fixing.

[0098] Optionally, the straight-line distance from the tip of the second sawtooth 131 of the lightning arrester 10 to the mounting surface is L3; wherein 0≤L1-L3≤3mm, or 0≤L3-L1≤7mm, so that the height difference between the photovoltaic module 30 and the first sawtooth 121 is small, which can prevent the second sawtooth 131 from blocking the photovoltaic module 30 and ensure the power generation efficiency of the photovoltaic module 30.

[0099] The photovoltaic power station described in this embodiment of the present invention can achieve the same beneficial effects as the photovoltaic modules described above, and will not be repeated here.

[0100] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0101] Finally, it should 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, such that a process, method, article, or terminal device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or terminal device. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or terminal device that includes said element.

[0102] The photovoltaic power station provided by this utility model has been described in detail above. Specific examples have been used to illustrate the principle and implementation of this utility model. The description of the above embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation and application scope based on the idea of ​​this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A lightning arrester (10) for use in a photovoltaic power station, characterized in that, include: The base plate (11) and the first side plate (12); Along the circumference of the base plate (11), one side of the first side plate (12) is connected to one side of the base plate (11); the first side plate (12) is bent relative to the base plate (11); The first side plate (12) is provided with a plurality of first serrations (121) on the side away from the bottom plate (11), and the tips of the first serrations (121) are directed away from the bottom plate (11).

2. The lightning arrester (10) according to claim 1, characterized in that, The lightning arrester (10) also includes a second side plate (13), which is connected to the base plate (11). Along the circumference of the base plate (11), the second side plate (13) and the first side plate (12) are arranged at intervals. Along the thickness direction of the base plate (11), the second side plate (13) and the first side plate (12) are bent on the same side relative to the base plate (11); The second side plate (13) is provided with a plurality of second serrations (131) on the side away from the bottom plate (11), and the tips of the second serrations (131) are directed away from the bottom plate (11).

3. The lightning arrester (10) according to claim 2, characterized in that, The first saw tooth (121) and the second saw tooth (131) are symmetrically arranged on opposite sides of the base plate (11).

4. The lightning arrester (10) according to claim 2, characterized in that, The first saw tooth (121) has a first tooth tip angle α, 30°≤α≤70°; And / or, the second saw tooth (131) has a second tooth tip angle β, 30°≤β≤70°.

5. The lightning arrester (10) according to claim 1, characterized in that, The lightning arrester (10) further includes a first connecting plate (14) and a second connecting plate (15), which are connected to opposite sides of the base plate (11) along the circumference of the base plate (11). Both the first connecting plate (14) and the second connecting plate (15) are bent relative to the base plate (11); Along the thickness direction of the base plate (11), the first connecting plate (14) and the first side plate (12) protrude from opposite sides of the base plate (11).

6. The lightning arrester (10) according to claim 5, characterized in that, Along the circumference of the base plate (11), the first side plate (12), the first connecting plate (14) and the second connecting plate (15) are arranged at intervals.

7. A photovoltaic power station, characterized in that, include: Mounting rail (20), photovoltaic module (30) and lightning arrester (10) as described in any one of claims 1-6; The photovoltaic module (30) is mounted on the mounting rail (20); The base plate (11) of the lightning arrester (10) is fixed to the mounting rail (20), and the lightning arrester (10) is arranged in the gap between two adjacent photovoltaic modules (30).

8. The photovoltaic power station according to claim 7, characterized in that, The first side plate (12) of the lightning arrester (10) abuts against one side edge of the photovoltaic module (30), and the first side plate (12) is used to limit the photovoltaic module (30).

9. The photovoltaic power station according to claim 7, characterized in that, The lightning arrester (10) includes a first side plate (12) and a second side plate (13), which are connected to opposite sides of the base plate (11) along the circumference of the base plate (11). The two adjacent photovoltaic modules (30) are a first photovoltaic module and a second photovoltaic module, respectively. The edge of the first photovoltaic module facing the second photovoltaic module abuts against the first side plate (12), and the edge of the second photovoltaic module facing the first photovoltaic module abuts against the second side plate (13).

10. The photovoltaic power station according to claim 7, characterized in that, The photovoltaic module includes a frame that is electrically connected to the first side plate (12) of the lightning arrester (10).

11. The photovoltaic power station according to claim 7, characterized in that, The mounting rail (20) includes a mounting surface; the photovoltaic module (30) and the base plate (11) of the lightning arrester (10) are both mounted on the mounting surface; Along the direction perpendicular to the mounting surface, the maximum height of the photovoltaic module (30) protruding from the mounting surface is L1, and the straight-line distance from the tip of the first tooth (121) of the lightning arrester (10) to the mounting surface is L2. Where 0≤L1-L2≤3mm, or 0≤L2-L1≤7mm.

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