A photovoltaic module lightning protection and dust guide integrated part

Abstract

The utility model discloses a photovoltaic module lightning protection and dust guide integrated part, which is installed on the frame of two adjacent photovoltaic modules, is made of conductive metal, includes an intermediate connecting part and two U-shaped parts respectively connected to the two sides of the intermediate connecting part, the two U-shaped parts are connected to the frames of the two adjacent photovoltaic modules, the U-shaped part includes a dust guide upper side edge, a fixed lower side edge and a front side edge connecting the dust guide upper side edge and the fixed lower side edge; a dust guide channel is provided between the U-shaped part and the frame, the free end of the dust guide upper side edge extends beyond the inner edge of the upper side wall of the photovoltaic module frame and has a dust guide entrance connected to the dust guide channel between the photovoltaic module surface, and the inner side walls of the dust guide upper side edge and the fixed lower side edge are provided with puncture points for puncturing the protective film of the frame, thereby grounding the frame. The utility model can simultaneously achieve the dust guide and lightning protection grounding functions of the photovoltaic module, and achieve the purpose of saving system cost and multi-purpose.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaics, in particular to a photovoltaic component lightning protection and dust guide integrated part. Background Art

[0002] Dust on the surface of photovoltaic modules will affect the efficiency of photovoltaic modules in absorbing sunlight. Since photovoltaic modules are tilted, dust and rainwater will accumulate at the bottom, blocking the bottom of the photovoltaic panel, resulting in the bottom area of ​​the photovoltaic panel not receiving sunlight. Therefore, the frame at the bottom of the photovoltaic module is usually equipped with a dust guide groove to achieve the water and dust guide functions. With reference to the Chinese utility model patent with the authorization announcement number CN219394780 U, a siphon dust guide assembly of a photovoltaic panel is disclosed, including a sheet body arranged at the lower part of the photovoltaic panel, an upper clamping plate and a lower clamping plate for clamping the photovoltaic panel are respectively installed at both ends of the sheet body in the width direction, the sheet body and the photovoltaic panel are arranged in a gap, a dust discharge port is provided on the lower clamping plate, and a sawtooth portion extends outward from one end of the upper clamping plate away from the sheet body, and the sawtooth portion abuts against the upper surface of the photovoltaic panel on the side away from the upper clamping plate. The abutment of the sawtooth portion can make water and dust be sucked out of the photovoltaic panel through the siphon effect generated by the bottom surface of the sawtooth portion, and discharged through the gap between the sheet body and the photovoltaic panel and the dust discharge port, and the impurities are discharged by the self-weight of water and dust combined with the siphon effect.

[0003] In addition, a protective film is provided on the surface of the aluminum alloy frame of the photovoltaic module. In order to realize the lightning protection grounding of the photovoltaic module, a special lightning protection grounding conductive puncture sheet is usually required.

[0004] In the prior art, the dust guide piece and the lightning protection grounding conductive puncture piece are separately provided and installed, which increases the cost on the one hand and increases the installation process on the other hand. Utility Model Content

[0005] In view of the defects of the prior art, the technical problem to be solved by the present invention is to provide an integrated lightning protection and dust guide component for photovoltaic modules, so as to solve the problem of high cost caused by the separate arrangement of the dust guide component and the lightning protection grounding component.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions: a photovoltaic module lightning protection and dust guide integrated part, which is installed on the frame of two adjacent photovoltaic modules, the lightning protection and dust guide integrated part is made of conductive metal, the lightning protection and dust guide integrated part includes an intermediate connecting part and two U-shaped parts respectively connected to the two sides of the intermediate connecting part, the two U-shaped parts are connected to the frames of the two adjacent photovoltaic modules correspondingly, the U-shaped part includes a dust guide upper side edge, a fixed lower side edge and a front side edge connecting the dust guide upper side edge and the fixed lower side edge; the dust guide upper side edge and the fixed lower side edge cooperate to clamp the upper side wall and the lower side wall of the frame correspondingly, a dust guide channel is provided between the U-shaped part and the frame, the free end of the dust guide upper side edge extends beyond the inner edge of the upper side wall of the photovoltaic module frame and has a dust guide inlet connected to the dust guide channel between the surface of the photovoltaic module, the inner side walls of the dust guide upper side edge and the fixed lower side edge are provided with puncture points, and the puncture points are used to puncture the protective film of the frame, thereby grounding the frame.

[0007] Preferably, the free end of the upper side of the dust guide is curved toward the surface of the photovoltaic module.

[0008] Preferably, a protrusion is provided on the inner side of the front side so as to form a dust-guiding gap between the front side and the outer wall of the frame.

[0009] Preferably, the protrusion is arranged at a middle position of the front side and extends along the entire height of the front side.

[0010] Preferably, the thickness of the protrusion is ≥0.5 mm, and the width of the protrusion is ≥1 mm.

[0011] Preferably, the length L1 of the U-shaped portion is ≥10 mm, and the length L2 of the middle connecting portion is ≥30 mm.

[0012] Preferably, the plurality of puncture points are arranged in an array.

[0013] Preferably, the integrated lightning protection and dust guide part is a sheet metal part.

[0014] Preferably, the integrated lightning protection and dust guide member is made of a stainless steel plate.

[0015] Preferably, the thickness of the stainless steel plate is ≥0.3 mm.

[0016] The technical solution adopted by the utility model has the following beneficial effects:

[0017] 1. The U-shaped portion is connected to the frame, wherein the free end of the upper side of the dust guide extends beyond the edge of the upper side wall of the photovoltaic module frame and has a dust guide inlet between the U-shaped portion and the surface of the photovoltaic module, and a dust guide channel is provided between the U-shaped portion and the frame, so that dust and water adsorbed on the surface of the photovoltaic module can be introduced from the dust guide inlet, then flow along the dust guide channel, and finally discharged. In addition, the inner side walls of the upper side of the dust guide and the fixed lower side are provided with puncture points, and the protective film of the frame is punctured through the puncture points, so that the circuit between the frame and the ground is connected to achieve lightning protection and grounding. Therefore, the integrated lightning protection and dust guide can simultaneously achieve the dust guiding and lightning protection grounding functions of the photovoltaic module, thereby achieving the purpose of saving system costs and multi-purposes. Moreover, only one integrated lightning protection and dust guide needs to be installed during installation, which simplifies the installation process and reduces the installation cost compared with the prior art.

[0018] 2. Since the free end of the upper side of the dust guide is curved toward the surface of the photovoltaic module, forming an arc-shaped curved edge, on the one hand, it avoids the reliability of the connection between the photovoltaic module lightning protection and dust guide integrated parts and the frame, and avoids separation; on the other hand, it is conducive to dust and water entering the dust guide entrance from the surface of the photovoltaic module.

[0019] 3. Since a protrusion is provided on the inner side of the front side, a dust guide gap is formed between the front side and the outer wall of the frame. At the same time, after the puncture point on the upper side of the dust guide punctures the protective film of the frame, a dust guide gap can still be formed between the upper side of the dust guide and the upper wall of the frame. The dust guide gaps are connected to form a dust guide channel, so that dust and water can be discharged, for example, from both sides of the front side.

[0020] 4. Multiple puncture points are arranged in an array to ensure that the frame protective film can be punctured to achieve conductivity.

[0021] 5. The integrated lightning protection and dust guide part is made of sheet metal, which has the advantages of light weight, high strength, conductivity, low cost, good mass production performance, etc. In addition, the integrated lightning protection and dust guide part is made of stainless steel plate through sheet metal process, which has the advantages of corrosion resistance and long service life.

[0022] The specific technical solution adopted by the utility model and the beneficial effects brought about by it will be disclosed in detail in the following specific implementation manner in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments:

[0024] Figure 1 This is a schematic diagram of the structure of a photovoltaic module lightning protection and dust guide integrated component installed on the photovoltaic module frame according to the utility model;

[0025] Figure 2 This is a schematic diagram of the structure of a photovoltaic module lightning protection and dust guide integrated component of the utility model Figure 1 ;

[0026] Figure 3 This is a schematic diagram of the structure of a photovoltaic module lightning protection and dust guide integrated component of the utility model Figure 2 ;

[0027] Figure 4 This is a schematic diagram of the structure of a photovoltaic module lightning protection and dust guide integrated component of the utility model Figure 3 ;

[0028] In the figure: frame 100, integrated lightning protection and dust guide part 1, U-shaped part 11, dust guide upper side 111, front side 112, fixed lower side 113, middle connecting part 12, puncture point 13, arc-shaped curved edge 14, protrusion 15. DETAILED DESCRIPTION

[0029] The following is an explanation and description of the technical scheme of the embodiment of the utility model in conjunction with the drawings of the embodiment of the utility model, but the following embodiment is only a preferred embodiment of the utility model, not all. Based on the embodiment in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the utility model.

[0030] Those skilled in the art will appreciate that, in the absence of conflict, the features in the following embodiments and implementations may be combined with each other.

[0031] The terms used in the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. For example, the following words indicating orientation or positional relationship, such as "upper", "lower", "inner", "outer", etc., are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device / element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0032] In the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection", "fixation" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] like Figures 1 to 4As shown, a photovoltaic module lightning protection and dust guide integrated part 1 is installed on the photovoltaic module frame 100, and the lightning protection and dust guide integrated part 1 is made of conductive metal. The lightning protection and dust guide integrated part 1 includes an intermediate connecting part 12 and two U-shaped parts 11 respectively connected to the two sides of the intermediate connecting part, and the two U-shaped parts 11 are connected to the frames 100 of two adjacent photovoltaic modules. The U-shaped part 11 includes a dust guide upper side 111, a fixed lower side 113, and a front side 112 connecting the dust guide upper side and the fixed lower side; the dust guide upper side 111 and the fixed lower side 113 cooperate to clamp the upper side wall and the lower side wall of the frame. There is a dust guide channel between the U-shaped part 11 and the frame 100, and the free end of the dust guide upper side extends beyond the edge of the upper side wall of the photovoltaic module frame, and there is a dust guide inlet connected to the dust guide channel between the surface of the photovoltaic module. The inner side walls of the dust guiding upper side edge 111 and the fixed lower side edge 113 are provided with puncture points 13, and the puncture points 13 are used to puncture the protective film of the frame, so as to ground the frame.

[0034] The integrated lightning protection and dust guide is made of conductive metal. Therefore, after the U-shaped part pierces the protective film of the frame through the puncture point, the integrated lightning protection and dust guide and the frame are connected. Since the two U-shaped parts are connected by the middle connecting part, after the integrated lightning protection and dust guide is installed in the photovoltaic system, all photovoltaic modules are connected, and then the grounding wire can be connected for grounding.

[0035] In addition, the above technical solution can guide the dust and water adsorbed on the surface of the photovoltaic module from the dust guide inlet, and then flow along the dust guide channel and finally be discharged to achieve the dust guide function. In addition, the inner side wall of the upper side of the dust guide and the fixed lower side is provided with a puncture point, and the protective film of the frame is punctured through the puncture point, so that the circuit between the frame and the ground is connected to achieve lightning protection and grounding. Therefore, the integrated lightning protection and dust guide can simultaneously achieve the dust guide and lightning protection grounding functions of the photovoltaic module, achieving the purpose of saving system cost and multi-purpose, and, during installation, only one integrated lightning protection and dust guide needs to be installed, which simplifies the installation process and reduces the installation cost compared with the prior art.

[0036] Specifically, a protrusion 15 is provided on the inner side of the front side edge 112 to form a dust guide gap between the front side edge 112 and the outer wall of the frame. At the same time, after the puncture point of the upper dust guide side punctures the protective film of the frame, a dust guide gap can still be formed between the upper dust guide side edge and the upper wall of the frame. The dust guide gap is connected to form a dust guide channel, so that dust and water can be discharged, for example, from both sides of the front side edge.

[0037] Furthermore, the free end of the upper side of the dust guide is curved toward the surface of the photovoltaic module to form an arc-shaped curved edge 14. On the one hand, the connection reliability of the photovoltaic module lightning protection and dust guide integrated part and the frame is avoided, and separation is avoided. On the other hand, it is conducive to dust and water entering the dust guide entrance from the surface of the photovoltaic module.

[0038] In this embodiment, the protrusion 15 is arranged in the middle of the front side and extends along the entire height of the front side, and is formed by being recessed from front to back. The thickness of the protrusion 15 is ≥ 0.5 mm, and the width of the protrusion 15 is ≥ 1 mm. The protrusion not only plays the role of forming a dust guide gap, but also acts as a reinforcing rib, thereby enhancing the overall structural strength of the integrated lightning protection and dust guide component.

[0039] Specifically, the length L1 of the U-shaped portion 11 is ≥10 mm, and the length L2 of the middle connecting portion 12 is ≥30 mm. The length of the middle connecting portion is long enough to ensure that the two U-shaped portions connected on both sides of the middle connecting portion are reliably connected to the frames of two adjacent photovoltaic modules.

[0040] Multiple puncture points are arranged in an array, such as Figure 4 As shown, multiple puncture points are arranged in a circular array, and then four puncture point groups are combined into a rectangular array, thereby ensuring that the frame protective film can be punctured to achieve conductivity.

[0041] In this embodiment, the lightning protection and dust guide integrated part 1 is a sheet metal part. Sheet metal parts have the advantages of light weight, high strength, electrical conductivity, low cost, and good mass production performance. Specifically, the lightning protection and dust guide integrated part is made of a stainless steel plate through a sheet metal process, and the thickness of the stainless steel plate is ≥0.3 mm, which has the advantages of corrosion resistance and long service life.

[0042] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Those skilled in the art should understand that the utility model includes but is not limited to the contents described in the drawings and the above specific implementation. Any modification that does not deviate from the functional and structural principles of the utility model will be included in the scope of the claims.

Claims

1. A photovoltaic module lightning protection and dust guide integrated component, installed on the frame of two adjacent photovoltaic modules, characterized in that: The integrated lightning protection and dust guide component is made of conductive metal, and includes a middle connecting part and two U-shaped parts respectively connected to the two sides of the middle connecting part, and the two U-shaped parts are connected to the frames of two adjacent photovoltaic modules respectively, and the U-shaped part includes a dust guide upper side, a fixed lower side and a front side connecting the dust guide upper side and the fixed lower side; the dust guide upper side and the fixed lower side cooperate with the corresponding clamping frame upper side wall and lower side wall, and a dust guide channel is provided between the U-shaped part and the frame, and the free end of the dust guide upper side extends beyond the inner edge of the upper side wall of the photovoltaic module frame, and has a dust guide inlet connected to the dust guide channel between the surface of the photovoltaic module, and the inner side walls of the dust guide upper side and the fixed lower side are provided with puncture points, and the puncture points are used to puncture the protective film of the frame, thereby grounding the frame.

2. The photovoltaic module lightning protection and dust guide integrated component according to claim 1, characterized in that: The free end of the upper side of the dust guide is curved toward the surface of the photovoltaic module.

3. The photovoltaic module lightning protection and dust guide integrated component according to claim 1, characterized in that: A protrusion is arranged on the inner side of the front side so as to form a dust guiding gap between the front side and the outer side wall of the frame.

4. The photovoltaic module lightning protection and dust guide integrated component according to claim 3, characterized in that: The protrusion is arranged at the middle position of the front side and extends along the entire height of the front side.

5. The photovoltaic module lightning protection and dust guide integrated component according to claim 3, characterized in that: The thickness of the protrusion is ≥0.5 mm, and the width of the protrusion is ≥1 mm.

6. The photovoltaic module lightning protection and dust guide integrated component according to claim 1, characterized in that: The length L1 of the U-shaped portion is ≥10 mm, and the length L2 of the middle connecting portion is ≥30 mm.

7. The photovoltaic module lightning protection and dust guide integrated component according to claim 1, characterized in that: Multiple puncture points are arranged in an array.

8. The photovoltaic module lightning protection and dust guide integrated component according to claim 1, characterized in that: The lightning protection and dust guide integrated part is a sheet metal part.

9. The photovoltaic module lightning protection and dust guide integrated component according to claim 8, characterized in that: The lightning protection and dust guide integrated part is made of a stainless steel plate.

10. A photovoltaic module lightning protection and dust guide integrated component according to claim 9, characterized in that: The thickness of the stainless steel plate is ≥0.3 mm.

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