Photovoltaic device

Abstract

The utility model discloses a photovoltaic device. The photovoltaic device comprises a photovoltaic assembly, a frame assembly and a conductive connecting assembly. The frame assembly comprises a plurality of purlines, the plurality of purlines are arranged at intervals in a first direction, the purlines can conduct electricity so as to be grounded through the grounding assembly, the photovoltaic assembly is borne on two adjacent purlines, and first mounting holes are formed in the purlines. The connecting assembly is provided with a first mounting hole and a second mounting hole, the connecting assembly comprises a first fastener, the first fastener penetrates through the first mounting hole and the second mounting hole to mechanically connect the photovoltaic assembly to the purline, and the photovoltaic assembly is electrically connected with the grounding assembly through the connecting assembly and the purline. According to the invention, the installation efficiency of the grounding assembly of the photovoltaic device is improved, the installation cost is saved, and the installation weight can be reduced.

Description

Technical Field

[0001] This application relates to the field of photovoltaic technology, and in particular to a photovoltaic device. Background Technology

[0002] With increasing emphasis on the development and utilization of green energy, the development of solar energy utilization technology, represented by the photovoltaic industry, is accelerating, and photovoltaic systems have emerged as a result. Currently, photovoltaic devices are typically located on relatively open ground or rooftops. However, during thunderstorms, these open areas are frequently struck by lightning. To prevent the current generated by lightning strikes from accumulating on the photovoltaic devices and damaging them or threatening the safety of nearby people or animals, grounding is performed during the installation of photovoltaic systems. However, in traditional photovoltaic system installation methods, grounding usually requires complex steps such as drilling at the installation site, which not only increases installation time and cost but may also adversely affect the installation quality.

[0003] This invention relates to the field of photovoltaic power generation system installation technology, and in particular to a technology for pre-reserving grounding holes on steel purlins for photovoltaic tiles, which aims to simplify the installation process and improve grounding efficiency.

[0004] Grounding is a crucial step in the installation of photovoltaic power generation systems, as it is essential for the safety and stability of the system. Utility Model Content

[0005] This application provides a photovoltaic device.

[0006] The photovoltaic device according to embodiments of this application includes a photovoltaic module, a frame assembly, and a conductive connection assembly. The frame assembly includes a plurality of purlins arranged at intervals in a first direction. The purlins are conductive for grounding via a grounding assembly. The photovoltaic module is supported on two adjacent purlins, and each purlin has a first mounting hole. The connection assembly has a second mounting hole and includes a first fastener. The first fastener passes through the first mounting hole and the second mounting hole to mechanically connect the photovoltaic module to the purlin. The photovoltaic module is electrically connected to the grounding assembly via the connection assembly and the purlin.

[0007] In some embodiments, the connecting assembly further includes a limiting member, wherein the first mounting hole is a through hole, the second mounting hole is a through hole, and the first fastener passes through the first mounting hole and the second mounting hole and is limited by the limiting member. Alternatively, one of the first mounting hole and the second mounting hole is a through hole, and the other is a threaded hole, wherein the first fastener passes through the through hole and is threaded into the threaded hole. Alternatively, the connecting assembly further includes a limiting member, wherein the first mounting hole is a blind hole that passes through at least one opposite end of the purlin in the longitudinal direction, the second mounting hole is a through hole, and the first fastener enters the blind hole through the end of the purlin, passes through the through hole, and is limited by the limiting member.

[0008] In some embodiments, the photovoltaic module includes a photovoltaic element, which has a fifth mounting hole. The connection assembly further includes a first connector, which includes a first connecting portion and a second connecting portion that are connected to each other. The first connecting portion has a second mounting hole for connecting the purlin, and the second connecting portion has a third mounting hole. A second fastener passes through the fifth mounting hole and the third mounting hole to connect the connection assembly and the photovoltaic element.

[0009] In some embodiments, the first connector further includes a support portion connected to the first connector portion and spaced apart from the second connector portion to form a first space. The photovoltaic element is partially housed within the first space. The support portion supports the photovoltaic element. The support portion has a fourth mounting hole. The second fastener passes through the fifth mounting hole, the third mounting hole, and the fourth mounting hole to connect the connector assembly to the photovoltaic element.

[0010] In some embodiments, the connection assembly further includes a flexible second connector. The flexible second connector is housed within the first space and located between the photovoltaic element and the first connector, and the second connector is used to cushion the forces acting on the photovoltaic element.

[0011] In some embodiments, the photovoltaic module includes a waterproof component disposed on the light-receiving side of the photovoltaic module and extending along a second direction that intersects with the first direction. The waterproof component has a perforation, and the second connecting portion passes through the perforation.

[0012] In some embodiments, the connecting assembly further includes a second connector, the second connector including a first sub-part and a second sub-part, the first sub-part being housed within the first space and having a second space for accommodating a portion of the photovoltaic element, the second sub-part being located outside the first space and opposite to an end of the second connector; the photovoltaic element includes a windproof element, a locking member passing through the windproof element, the second sub-part, and the end of the second connector to connect the windproof element to the connecting assembly, the windproof element including a shielding portion away from the end of the second connector, the shielding portion being opposite at least a portion of the waterproof element in the thickness direction of the photovoltaic element.

[0013] In some embodiments, the waterproof component is conductive, and the second connection portion is connected to the waterproof component.

[0014] In some embodiments, the purlin is a metal purlin, an alloy purlin, or a carbon purlin.

[0015] In some embodiments, the purlin includes steel purlins, copper purlins, aluminum purlins, iron purlins, copper alloy purlins, aluminum alloy purlins, or carbon fiber purlins.

[0016] The photovoltaic device according to this application includes photovoltaic modules, frame components, and conductive connection components. By designing the purlins as conductive structures and electrically connecting them to a grounding component, and by also designing the connection components as conductive structures, during the installation of the photovoltaic modules, while mechanically connecting the photovoltaic modules to the purlins through the first mounting holes on the purlins and the second mounting holes on the connection components, the photovoltaic modules can also be electrically connected to the grounding component through the conductive connection components and the conductive purlins, thereby achieving grounding. This application eliminates the need for complex steps such as drilling at the installation site, improving installation efficiency, saving installation costs, and reducing installation weight.

[0017] 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

[0018] 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, wherein:

[0019] Figure 1 This is a schematic diagram of the structure of a photovoltaic device according to some embodiments of this application;

[0020] Figure 2 This is a structural schematic diagram of a photovoltaic module and a connecting component according to some embodiments of this application;

[0021] Figure 3These are some embodiments of this application Figure 2 The diagram shows a cross-sectional view of the structure of the photovoltaic module and connecting components along line AA.

[0022] Figure 4 This is a schematic diagram of the structure of the first fastener and the limiting member in some embodiments of this application;

[0023] Figure 5 These are some embodiments of this application Figure 2 The diagram shows a cross-section of the photovoltaic module and connecting component along line AA with the first fastener and limiting member installed.

[0024] Figure 6 This is a structural schematic diagram of a photovoltaic device according to some embodiments of this application.

[0025] Explanation of key component symbols:

[0026] Photovoltaic device 1000; photovoltaic module 100; photovoltaic component 110; fifth mounting hole 111; waterproof component 120; windproof component 130; shading part 131; locking component 140; frame assembly 200; bearing surface 210; purlin 220; first mounting hole 221; connecting assembly 300; first connector 310; first connecting part 311; second mounting hole 3111; second connecting part 312; third mounting hole 3121; support part 313; fourth mounting hole 3131; second fastener 320; second connector 330; first sub-part 331; second sub-part 332; first fastener 340; limiting component 350; grounding assembly 400. Detailed Implementation

[0027] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0028] In the description of this application, it should be understood that the terms "center", "length", "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., 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 this application and simplifying the description, and do not 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 this application.

[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0030] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," etc., 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, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0031] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0032] With increasing emphasis on the development and utilization of green energy, the development of solar energy utilization technology, represented by the photovoltaic industry, is accelerating, and photovoltaic systems have emerged accordingly. Currently, photovoltaic devices are typically located on relatively open ground or rooftops. However, during thunderstorms, these open areas are frequently struck by lightning. To prevent the current generated by lightning strikes from accumulating on the photovoltaic device and damaging it, or threatening the safety of nearby people or animals, grounding is performed during the installation of the photovoltaic system. However, in traditional photovoltaic system installation methods, grounding usually requires complex steps such as drilling at the installation site, which not only increases installation time and cost but may also adversely affect installation quality. Therefore, how to reduce the complex steps such as drilling required for grounding during the installation of photovoltaic equipment, thereby reducing installation time and cost, has become a pressing problem for those skilled in the art. To address these issues, this application provides a photovoltaic device 1000 (e.g., Figure 1 (As shown).

[0033] Please see Figure 1, Figure 2 and Figure 3 The photovoltaic device 1000 of this application includes a photovoltaic module 100, a frame assembly 200, and a conductive connection assembly 300. The frame assembly 200 includes a plurality of purlins 220, which are spaced apart from each other in a first direction. The purlins 220 are conductive and grounded through a grounding assembly 400. The photovoltaic module 100 is supported on two adjacent purlins 220, and each purlin 220 has a first mounting hole 221. The conductive connection assembly 300 has a second mounting hole 3111. (Please refer to...) Figure 4 The conductive connection component 300 also includes a first fastener 340, which passes through a first mounting hole 221 and a second mounting hole 3111 to mechanically connect the photovoltaic module 100 to the purlin 220. The photovoltaic module 100 is electrically connected to the grounding component 400 through the connection component 300 and the purlin 220.

[0034] A photovoltaic (PV) device 1000 is a building structure combining photovoltaic power generation technology and shading function, applicable to residential, commercial buildings, parking lots, and other locations. The PV device 1000 converts solar energy into electrical energy while also providing users with a function similar to a rooftop. Furthermore, the PV device 1000 can be built independently or integrated with various buildings, such as on balcony roofs, rooftops, or garage roofs. In this application, the PV device 1000 includes a photovoltaic module 100, a frame module 200, and a conductive connection module 300. The photovoltaic module 100 effectively collects solar energy and converts it into electrical energy, supplying power to nearby buildings or feeding it back into the power grid or battery connected to the PV device 1000. The photovoltaic module 100 can be electrically connected to an external energy storage device, which can store the electrical energy generated by the photovoltaic module 100 to power household appliances, portable devices, and other loads. The energy storage device and the photovoltaic module 100 can be directly connected via cables or through intermediate devices such as junction boxes or combiner boards. It should be noted that the energy storage device can be a lithium-ion battery, a lead-acid battery, or other types of rechargeable batteries. Meanwhile, due to the large area of ​​the photovoltaic module 100, the photovoltaic device 1000 can also provide users with shading and cooling functions; that is, the photovoltaic module 100 can also function similarly to roof tiles, thereby improving the comfort of the user's living or working environment. The frame module 200 enhances the structural robustness of the entire photovoltaic device 1000. The frame module 200 is made of metal materials, including but not limited to aluminum, iron, steel, or aluminum alloys. After the photovoltaic module 100 is struck by lightning, the lightning current on the photovoltaic module 100 can be conducted to the frame module 200 made of metal materials, and then conducted to the ground through the grounding component 400, thereby realizing the transfer of current.

[0035] Specifically, the frame assembly 200 of the photovoltaic device 1000 includes a load-bearing surface 210 and multiple purlins 220. The frame assembly 200 primarily supports the upper structure of the photovoltaic device 1000 and ensures its stability and durability. The frame assembly 200 is a structure used to encapsulate and secure the photovoltaic module 100. The periphery of the photovoltaic module 100 can be connected to the frame assembly 200, thereby ensuring the stability of the photovoltaic module 100 within the frame assembly 200. The frame assembly 200 can be made of high-strength, corrosion-resistant materials, such as aluminum alloy, nickel-copper alloy, copper-chromium-zirconium alloy, and titanium / copper composite plates, thus meeting the usage requirements of the frame assembly 200 in various environments while also ensuring its electrical conductivity.

[0036] More specifically, a plurality of purlins 220 of the frame assembly 200 are connected to the bearing surface 210, and the plurality of purlins 220 are in a first direction ( Figure 1 The purlins 220 are arranged at intervals along the X-axis (as shown in the middle), thus reserving sufficient installation space for the photovoltaic module 100. The purlins 220 are conductive, ensuring that after a lightning strike, the charge remaining on the surface of the photovoltaic module 100 can be transferred to the purlins 220. A grounding component 400 is connected to the purlins 220, allowing the charge conducted to the photovoltaic module 100 to continue to be transferred to the ground through the grounding component 400. This prevents the charge from remaining on the photovoltaic module 100 for an extended period, avoiding electric shock to users and improving the safety of the photovoltaic device 1000.

[0037] Furthermore, the conductive connection component 300 can be made of high-strength, corrosion-resistant conductive materials, such as aluminum alloy, nickel-copper alloy, copper-chromium-zirconium alloy, and titanium / copper composite plate. The conductive connection component 300 is used to mechanically connect the photovoltaic module 100 to the purlin 220, thereby ensuring that the photovoltaic module 100 can be electrically connected to the purlin 220, that is, the photovoltaic module 100 is electrically connected to the grounding component 400 through the connection component 300 and the purlin 220.

[0038] Furthermore, the purlin 220 is provided with a first mounting hole 221, and the conductive connecting component 300 is provided with a second mounting hole 3111. The first mounting hole 221 and the second mounting hole 3111 cooperate to allow the first fastener 340 to pass through the first mounting hole 221 and the second mounting hole 3111, thereby firmly connecting the purlin 220 and the conductive connecting component 300 together through the first fastener 340. The first mounting hole 221 and the second mounting hole 3111 include, but are not limited to, circular through holes, elliptical through holes, polygonal through holes, circular blind holes, elliptical blind holes, and polygonal blind holes.

[0039] It is understood that the photovoltaic device 1000 of this application includes a photovoltaic module 100, a frame assembly 200, and a conductive connection assembly 300. By designing the purlin 220 as a conductive structure and electrically connecting it to the grounding assembly 400, and by also designing the connection assembly 300 as a conductive structure, when installing the photovoltaic module 100, while mechanically connecting the photovoltaic module 100 to the purlin 220 through the first mounting hole 221 on the purlin 220 and the second mounting hole 3111 on the connection assembly 300, the photovoltaic module 100 can also be electrically connected to the grounding assembly 400 through the conductive connection assembly 300 and the conductive purlin 220, thereby achieving grounding. This application eliminates the need for complex steps such as drilling at the installation site, improving installation efficiency, saving installation costs, and reducing installation weight.

[0040] In some implementations, please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The connecting assembly 300 further includes a limiting member 350. The first mounting hole 221 is a through hole, and the second mounting hole 221 is a through hole. The first fastener 340 passes through the first mounting hole 221 and the second mounting hole 3111 and is then limited by the limiting member 350. Alternatively, one of the first mounting hole 221 and the second mounting hole 311 is a through hole, and the other is a threaded hole. The first fastener 340 passes through the through hole and is threaded into the threaded hole. Alternatively, the connecting assembly 300 further includes a limiting member 350. The first mounting hole 221 is a blind hole, penetrating at least one end of the purlin in the longitudinal direction. The second mounting hole 3111 is a through hole. The first fastener 340 enters the blind hole through the end of the purlin 220 and passes through the through hole before being limited by the limiting member 350.

[0041] Specifically, there are three ways to connect the connecting component 300 to the purlin 220. The first way is as follows: Figure 3As shown, in the first scenario, both the first mounting hole 221 and the second mounting hole 3111 are through holes. The first fastener 340 passes through both the first and second mounting holes 221 and 3111 and is then stopped by the limiting member 350. The first fastener 340 includes, but is not limited to, bolts, pins, or rivets, while the limiting member 350 includes, but is not limited to, nuts, snap rings, or retaining washers. In the first scenario, the operator needs to ensure that the first mounting hole 221 and the second mounting hole 3111 are aligned, and then pass the first fastener 340 through the first and second mounting holes 221 in sequence, or through the second and first mounting holes 3111 in sequence. Finally, the limiting member 350 is installed at one end of the first fastener 340 to ensure that the first fastener 340 is securely fixed at the limiting member 350. This connection method is simple in structure, easy to disassemble, and can greatly reduce the operator's workload and improve installation efficiency.

[0042] Specifically, the second scenario can be referred to... Figure 3 as well as Figure 4 In the second scenario, one of the first mounting hole 221 and the second mounting hole 311 is a through hole, and the other is a threaded hole. The first fastener 340 passes through the through hole and is threaded into the threaded hole. In this case, the limiting member 350 is not required, as the first fastener 340 is secured by its own threads. In the second scenario, the operator needs to ensure that the first mounting hole 221 and the second mounting hole 3111 are aligned, and then pass the first fastener 340 sequentially through the first mounting hole 221 and the second mounting hole 3111, or sequentially through the second mounting hole 3111 and the first mounting hole 221, and tighten the first fastener 340 to ensure a tight thread engagement. This method eliminates the need for an additional limiting member 350, saving parts and reducing costs.

[0043] Specifically, the third scenario can be referred to Figure 4 as well as Figure 5 In the third case, the first mounting hole 221 is a blind hole, penetrating at least one end of the purlin along its length. The second mounting hole 3111 is a through hole. The first fastener 340 enters the blind hole through the end of the purlin 220 and is then stopped by the limiting member 350 after passing through the through hole. In this third case, the operator needs to insert the fastener 340 into the blind hole from the end of the purlin 220, ensuring that the first mounting hole 221 and the second mounting hole 3111 are aligned. Then, the first fastener 340 is passed through the second mounting hole 3111, and finally, the limiting member 350 is installed at one end of the first fastener 340 to ensure that the first fastener 340 is securely fixed at the limiting member 350. The blind hole protects the first fastener 340 from rainwater corrosion, improving the service life of the photovoltaic device 1000.

[0044] In some implementations, please refer to Figure 1 , Figure 2 , Figure 5 and Figure 6 The photovoltaic module 100 includes a photovoltaic element 110, which has a fifth mounting hole 111. The connecting assembly 300 includes a first connector 310, which includes a first connecting portion 311 and a second connecting portion 312. The first connecting portion 311 has a second mounting hole 3111 for connecting a purlin 220, and the second connecting portion 312 has a third mounting hole 3121. A second fastener 320 passes through the fifth mounting hole 111 and the third mounting hole 3121 to connect the connecting assembly 300 and the photovoltaic element 110.

[0045] Specifically, the photovoltaic module 100 includes a photovoltaic element 110, which has a fifth mounting hole 111. The photovoltaic element 110 is the main body of the solar panel, responsible for realizing the photoelectric conversion function. For example, the photovoltaic element 110 includes components made of monocrystalline silicon wafers, polycrystalline silicon wafers, or amorphous silicon wafers, thereby realizing the conversion of light energy into electrical energy. The fifth mounting hole 111 is a hole pre-drilled on the edge or frame of the photovoltaic element 110 for mechanically fixing and connecting the module 300. The fifth mounting hole 111 includes, but is not limited to, circular, square, hexagonal, and elongated holes. The connecting component 300 includes a first connector 310, which is a metal component connecting the photovoltaic component 110 and the purlin 220. For example, the first connector 310 includes, but is not limited to, L-shaped corner brackets, U-shaped buckles, etc. In this application, the first connector 310 includes a first connecting portion 311 and a second connecting portion 312 that are connected. The first connecting portion 311 is the part of the first connector 310 used to cooperate with the purlin 220, and the second connecting portion 312 is the part of the first connector 310 used to fix it to the photovoltaic component 110. The first connecting portion 311 is provided with a second mounting hole 3111 for connecting the purlin 220, and the second connecting portion 312 is provided with a third mounting hole 3121. The third mounting hole 3121 is a hole on the second connecting portion 312 that is aligned with the fifth mounting hole 111 of the photovoltaic component 110. The third mounting hole 3121 includes, but is not limited to, circular, square, hexagonal, and elongated holes. When the photovoltaic element 110 is connected to the connection assembly 300, the second fastener 320 passes through the fifth mounting hole 111 and the third mounting hole 3121. The second fastener 320 includes, but is not limited to, bolts, nuts or screws, and is used to penetrate the fifth mounting hole 111 and the third mounting hole 3121 and lock the fifth mounting hole 111 and the third mounting hole 3121 together.

[0046] Furthermore, during the installation of the photovoltaic element 110 and the connecting assembly 300, the operator first needs to align the fifth mounting hole 111 and the third mounting hole 3121, that is, to fit the second connecting part 312 of the first connector 310 against the edge of the photovoltaic element 110, so that the third mounting hole 3121 is aligned with the fifth mounting hole 111 of the photovoltaic element 110. For example, if the photovoltaic element 110 has two fifth mounting holes 111 on its frame, then two first connectors 310 are required, and the third mounting hole 3121 of each first connector 310 must be aligned with the corresponding fifth mounting hole 111. Afterwards, the operator needs to tighten the photovoltaic element 110 and the connecting assembly 300, that is, to pass the second fastener 320 (such as a bolt) through the fifth mounting hole 111 and the third mounting hole 3121 in sequence, and lock it with a nut or self-tapping screw. In addition, operators can add anti-loosening washers to the second fastener 320 to prevent the second fastener 320 from loosening due to vibration during the use of the photovoltaic component 110. The material of the second fastener 320 must be corrosion-resistant (such as 304 stainless steel, 316 stainless steel, aluminum alloy, galvanized steel, nickel-based alloy, titanium and titanium alloy, etc.). Operators also need to lock the connector to the purlin 220, that is, fix the first connecting part 311 of the first connector 310 to the first mounting hole 221 of the purlin 220 through the second mounting hole 3111.

[0047] Understandably, this method, by dividing the photovoltaic module 100, connecting component 300, and purlin 220 into multiple modules, uses the first connector 310 as a standardized interface to ensure that different first connectors 310 can be adapted to different types of purlin 220, thereby improving the standardization of the component production process and increasing the production efficiency of the first connector 310 and purlin 220. During installation, operators do not need to perform complex operations such as on-site measurement and drilling; they only need to ensure that the fifth mounting hole 111 is aligned with the third mounting hole 3121 and engage the second mounting hole 3111 on the first connecting part 311 with the first mounting hole 221 on the purlin 220. They do not need to carry tools for welding or more complex operations, thus improving installation efficiency. This method also improves the wind and earthquake resistance of the entire photovoltaic device 1000 through the double fixing between the photovoltaic module 110 and the connecting component 300, and between the connecting component 300 and the purlin 220.

[0048] In some implementations, please refer to Figure 1 , Figure 2 and Figure 5The first connector 310 also includes a support portion 313, which is connected to the first connector 311 and spaced apart from the second connector 312 to form a first space. The photovoltaic component 110 is partially housed in the first space. The support portion 313 is used to support the photovoltaic component 110. The support portion 313 is provided with a fourth mounting hole 3131. The second fastener 320 passes through the fifth mounting hole 111, the third mounting hole 3121 and the fourth mounting hole 3131 to connect the connecting assembly 300 and the photovoltaic component 110.

[0049] Specifically, the first connector 310 is a metal component used to fix the photovoltaic element 110 to the purlin 220. The first connector 310 includes a first connecting portion 311, a second connecting portion 312, and a supporting portion 313. The supporting portion 313 is the part of the first connector 310 used to directly support the photovoltaic element 110. The supporting portion 313 is connected to the first connecting portion 311 and forms a first space with the second connecting portion 312. The first space is formed by the gap between the supporting portion 313 and the second connecting portion 312, and is used to accommodate the edge of the photovoltaic element 110. The first space has a structure similar to a "sandwich," and the height of the "sandwich" structure matches the thickness of the photovoltaic element 110. The fourth mounting hole 3131 is a hole on the supporting portion 313, aligned with the fifth mounting hole 111 of the photovoltaic element 110 and the third mounting hole 3121 of the second connecting portion 312. The fourth mounting hole 3131 includes, but is not limited to, circular, square, hexagonal, and elongated holes. The first space can nest the edge portion of the photovoltaic element 110 into the interior of the first connector 310, so that the first connector 310 surrounds the edge portion of the photovoltaic element 110, thereby further enhancing the connection strength between the first connector 310 and the photovoltaic element 110. When the photovoltaic device 1000 is used by the user, it can further prevent the photovoltaic element 110 from falling off the first connector 310.

[0050] Furthermore, during the installation of the photovoltaic element 110 and the connecting assembly 300, the operator first needs to insert the photovoltaic element 110 into the first space, that is, insert the edge of the photovoltaic element 110 into the first space (the gap between the support portion 313 and the second connecting portion 312), so that the edge of the photovoltaic element 110 fits against the surface of the support portion 313. The operator can position and align the photovoltaic element 110 according to the fifth mounting hole 111, the third mounting hole 3121, and the fourth mounting hole 3131, that is, fit the second connecting portion 312 of the first connecting member 310 against the edge of the photovoltaic element 110, align the third mounting hole 3121 with the fifth mounting hole 111 of the photovoltaic element 110, and align the fifth mounting hole 111 of the photovoltaic element 110 with the fourth mounting hole 3131. Afterwards, the operator needs to tighten the photovoltaic element 110 and the connecting assembly 300, that is, pass the second fastener 320 through the third mounting hole 3121, the fifth mounting hole 111, and the fourth mounting hole 3131 in sequence, and lock it with a nut or self-tapping screw. In addition, operators can add anti-loosening washers to the second fastener 320 to prevent the second fastener 320 from loosening due to vibration during the use of the photovoltaic component 110. The material of the second fastener 320 must be corrosion-resistant (such as 304 stainless steel, 316 stainless steel, aluminum alloy, galvanized steel, nickel-based alloy, titanium and titanium alloy, etc.). Operators also need to lock the connector to the purlin 220, that is, fix the first connecting part 311 of the first connector 310 to the first mounting hole 221 of the purlin 220 through the second mounting hole 3111.

[0051] Understandably, this method, by adding a support portion 313, further enhances the robustness of the connection between the photovoltaic element 110 and the connecting assembly 300. Compared to two-hole fixing, the three-hole fixing via the fifth mounting hole 111, the third mounting hole 3121, and the fourth mounting hole 3131 further improves the structural strength of the connection. The support portion 313 directly supports the weight of the photovoltaic element 110, avoiding the risk of deformation caused by the second connecting portion 312 bearing the force alone.

[0052] In some implementations, please refer to Figure 2 and Figure 3 The connecting component 300 also includes a flexible second connector 330, which is housed in the first space and located between the photovoltaic component 110 and the first connector 310. The second connector 330 is used to provide buffering for the forces on the photovoltaic component 110.

[0053] Specifically, the second connector 330 can be configured as a flexible connector located between the first connector 310 and the photovoltaic element 110. If the second connector 330 is made of a flexible material, it can provide further protection for the surface of the photovoltaic element 110, preventing wear from the metal-based first connector 310. Furthermore, it reduces the impact between the photovoltaic element 110 and the first connector 310 when the photovoltaic device 1000 is subjected to external vibrations, thus preventing damage to the surface of the photovoltaic element 110 from the metal first connector 310. For example, the materials of the second connector 330 include, but are not limited to, natural rubber, neoprene rubber, silicone rubber, polyurethane foam, memory foam, silicone foam, liquid silicone, and aerogel felt.

[0054] In some implementations, please refer to Figure 2 and Figure 3 The photovoltaic module 100 includes a waterproof component 120, which is disposed on the light-receiving side of the photovoltaic module 110 and extends along a second direction that intersects with the first direction. The waterproof component 120 is provided with a perforation, and the second connecting part 312 is provided with a perforation.

[0055] Specifically, the waterproof component 120 is a waterproof structure disposed on the light-receiving edge of the photovoltaic component 110. The waterproof component 120 is located on the light-receiving side of the photovoltaic component 110 and includes, but is not limited to, a long strip of metal, a metal water channel, or a metal edge. The second direction is... Figure 1 In the direction indicated by the Y-axis, the waterproof component 120 is provided with a through hole, and the second connecting part 312 is provided with a through hole. The through hole is a reserved hole on the waterproof component 120, which allows the second connecting part 330 to pass through and fix the waterproof component 120 to the second connecting part 330.

[0056] In some implementations, please refer to Figure 2 and Figure 3 The connecting assembly 300 further includes a second connector 330, which includes a first sub-part 331 and a second sub-part 332. The first sub-part 331 is housed within a first space and has a second space for accommodating a portion of the photovoltaic element 110. The second sub-part 332 is located outside the first space and is opposite to the end of the second connecting part 312. The photovoltaic module 100 includes a windproof element 130. A locking member 140 passes through the ends of the windproof element 130, the second sub-part 332, and the second connecting part 312 to connect the windproof element 130 to the connecting assembly 300. The windproof element 130 includes a shielding portion 131 at the end away from the second connecting part 312, in the thickness direction of the photovoltaic element 110 ( Figure 3 In the direction indicated by the Z-axis, the shielding portion 131 is opposite to at least a portion of the waterproof component 120.

[0057] Specifically, the second connector 330 includes a first sub-part 331 and a second sub-part 332. The first sub-part 331 is embedded within a first space of the first connector 310, and the interior of the first sub-part 331 has a second space for clamping the edge of the photovoltaic element 110. The second sub-part 332 is an extension located outside the first space, and the second sub-part 332 is aligned with the end of the second connector 312. The photovoltaic module 100 includes a windproof member 130 for resisting wind pressure, which prevents the waterproof member 120 from being blown open by excessive external wind force. A locking member 140 passes through the ends of the windproof member 130, the second sub-part 332, and the second connector 312 to connect the windproof member 130 to the connector assembly 300 and securely fix the windproof member 130 at the end position of the second connector 312. The windproof member 130 includes a shielding portion 131 away from the end of the second connector 312, in the thickness direction of the photovoltaic element 110 (i.e., Figure 3 In the Z-axis direction, the shielding portion 131 is at least partially opposite to the waterproof component 120. The locking component 140 includes, but is not limited to, bolts, rivets, and screws. The second space can nest the edge portion of the photovoltaic component 110 inside the second connector 330, so that the second connector 330 surrounds the edge portion of the photovoltaic component 110, thereby further enhancing the connection strength between the second connector 330 and the photovoltaic component 110, and further preventing the photovoltaic component 110 from detaching from the second connector 330 when the photovoltaic device 1000 is used by the user. The first space can nest the first sub-part 331 of the second connector 330 inside the first connector 310, so that the first connector 310 surrounds the first sub-part 331, thereby further enhancing the connection strength between the first connector 310 and the first sub-part 331. When the photovoltaic device 1000 is used by the user, this connection method can further prevent the first sub-part 331 from detaching from the first connector 310.

[0058] Furthermore, during the installation of the windproof component 130, the operator first needs to embed the photovoltaic component 110 into the second space, that is, insert the edge of the photovoltaic component 110 into the second space of the second connector 330, then place the first sub-part 331 into the first space, and then pass the locking component 140 through the windproof component 130, the second sub-part 332, and the end of the second connector 312 in sequence, and lock the ends of the windproof component 130, the second sub-part 332, and the second connector 312 by the locking component 140. After the locking component 140 passes through the windproof component 130, the second sub-part 332, and the second connector 312, it can form a three-point anchor, thereby improving the wind pressure resistance of the entire photovoltaic device 1000.

[0059] In some implementations, please refer to Figure 2 The waterproof component 120 is conductive, and the second connecting part 312 is connected to the waterproof component 120.

[0060] Specifically, the waterproof component 120 can be configured as a component made of conductive material. The conductive waterproof component 120 can further ensure that the current on the surface of the photovoltaic component 110 is conducted to the connection component 300, and further conducted to the grounding component 400 through the conductive purlin 220.

[0061] In some implementations, please refer to Figure 1 Purlin 220 is a metal purlin, alloy purlin, or carbon purlin.

[0062] Understandably, purlin 220 needs to be connected to grounding component 400 and perform the function of conducting current from photovoltaic module 100 and connection component 300 to grounding component 400. Therefore, purlin 220 needs to be set as metal purlin, alloy purlin or carbon purlin.

[0063] In some implementations, please refer to Figure 1 Purlin 220 includes steel purlins, copper purlins, aluminum purlins, iron purlins, copper alloy purlins, aluminum alloy purlins, or carbon fiber purlins.

[0064] It is understood that the purlin 220 needs to be connected to the grounding component 400 and to conduct the current on the photovoltaic module 100 and the connecting component 300 to the grounding component 400. Therefore, the purlin 220 includes, but is not limited to, steel purlins, copper purlins, aluminum purlins, iron purlins, copper alloy purlins, aluminum alloy purlins or carbon fiber purlins.

[0065] In some implementations, please refer to Figure 3 The purlin 220 has a cavity inside.

[0066] Understandably, the purlin 220 is designed with a cavity inside, which can reduce the production cost of the purlin 220 and improve the transportation efficiency of the purlin 220, thereby improving the installation efficiency of the photovoltaic device 1000.

[0067] In some implementations, please refer to Figure 1 The photovoltaic module 100 includes multiple photovoltaic modules 100 arranged along the second direction, and the first direction intersects the second direction.

[0068] Specifically, the photovoltaic module 100 includes multiple photovoltaic modules 100 along a second direction ( Figure 1 Arranged in the direction shown by the Y-axis, the first direction ( Figure 1 The direction indicated by the X-axis intersects with the second direction. The more photovoltaic modules 100 there are, the better the power generation effect of the photovoltaic device 1000.

[0069] In summary, the photovoltaic device 1000 of this application includes a photovoltaic module 100, a frame assembly 200, and a conductive connection assembly 300. By designing the purlin 220 as a conductive structure and electrically connecting it to the grounding assembly 400, and by also designing the connection assembly 300 as a conductive structure, during the installation of the photovoltaic module 100, while mechanically connecting the photovoltaic module 100 to the purlin 220 through the first mounting hole 221 on the purlin 220 and the second mounting hole 3111 on the connection assembly 300, the photovoltaic module 100 can also be electrically connected to the grounding assembly 400 through the conductive connection assembly 300 and the conductive purlin 220, thereby achieving grounding. This application eliminates the need for complex steps such as drilling at the installation site, improving installation efficiency, saving installation costs, and reducing installation weight.

[0070] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as the combination of these technical features does not contradict each other, it should be considered within the scope of this specification. At the same time, other implementation methods can be derived from the above embodiments, so that structural and logical substitutions and changes can be made without departing from the scope of this disclosure.

[0071] The above embodiments merely illustrate several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A photovoltaic device, characterized in that, include: Photovoltaic modules; and A frame assembly includes a plurality of purlins arranged at intervals in a first direction. The purlins are conductive for grounding via a grounding component. A photovoltaic module is supported on two adjacent purlins, and each purlin has a first mounting hole. A conductive connection component is provided with a second mounting hole and includes a first fastener, the first fastener passing through the first mounting hole and the second mounting hole to mechanically connect the photovoltaic module to the purlin, and the photovoltaic module is electrically connected to the grounding component through the connection component and the purlin.

2. The photovoltaic device according to claim 1, characterized in that, The connecting assembly further includes a limiting member, wherein the first mounting hole is a through hole, the second mounting hole is a through hole, and the first fastener, after passing through the first mounting hole and the second mounting hole, is limited by the limiting member; or... One of the first mounting hole and the second mounting hole is a through hole, and the other is a threaded hole. The first fastener passes through the through hole and is threaded into the threaded hole; or The connecting assembly further includes a limiting member. The first mounting hole is a blind hole that passes through at least one end of the purlin in the longitudinal direction. The second mounting hole is a through hole. The first fastener enters the blind hole through the end of the purlin and is limited by the limiting member after passing through the through hole.

3. The photovoltaic device according to claim 2, characterized in that, The photovoltaic module includes a photovoltaic element, and the photovoltaic element has a fifth mounting hole; the connection component further includes: The first connector includes a first connecting portion and a second connecting portion that are connected to each other. The first connecting portion is provided with a second mounting hole for connecting the purlin. The second connecting portion is provided with a third mounting hole. A second fastener passes through the third mounting hole and the fifth mounting hole to connect the connecting assembly and the photovoltaic element.

4. The photovoltaic device according to claim 3, characterized in that, The first connector further includes a support portion, which is connected to the first connector portion and spaced apart from the second connector portion to form a first space. The photovoltaic element is partially housed in the first space. The support portion is used to support the photovoltaic element. The support portion is provided with a fourth mounting hole. The second fastener passes through the fifth mounting hole, the third mounting hole, and the fourth mounting hole to connect the connector assembly and the photovoltaic element.

5. The photovoltaic device according to claim 4, characterized in that, The connection component also includes: A flexible second connector is housed within the first space and located between the photovoltaic element and the first connector. The second connector is used to buffer the forces acting on the photovoltaic element.

6. The photovoltaic device according to claim 4, characterized in that, The photovoltaic module includes a waterproof component, which is disposed on the light-receiving side of the photovoltaic module and extends along a second direction that intersects with the first direction. The waterproof component has a perforation, and the second connecting portion passes through the perforation.

7. The photovoltaic device according to claim 6, characterized in that, The connecting assembly further includes a second connector and includes a first sub-part and a second sub-part. The first sub-part is housed within the first space and has a second space for accommodating a portion of the photovoltaic element. The second sub-part is located outside the first space and is opposite to the end of the second connector. The photovoltaic element includes a windproof element. A locking member passes through the ends of the windproof element, the second sub-part, and the second connector to connect the windproof element to the connecting assembly. The windproof element includes a shielding portion at the end away from the second connector. In the thickness direction of the photovoltaic element, the shielding portion is opposite at least a portion of the waterproof element.

8. The photovoltaic device according to claim 6, characterized in that, The waterproof component is conductive, and the second connecting part is connected to the waterproof component.

9. The photovoltaic device according to claim 1, characterized in that, The purlin is a metal purlin, an alloy purlin, or a carbon purlin.

10. The photovoltaic device according to claim 1, characterized in that, The purlins include steel purlins, copper purlins, aluminum purlins, iron purlins, copper alloy purlins, aluminum alloy purlins, or carbon fiber purlins.

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