Multistage waterproof assembly and photovoltaic power generation system with same

Abstract

The invention relates to a multistage waterproof assembly and a photovoltaic power generation system with the same. The multi-stage waterproof assembly comprises a sealing strip, a clamping connecting piece and a pressing plate. The sealing strip wraps the edge of the photovoltaic panel, and the section of the sealing strip comprises a first inserting part, a main water retaining lip side, a first auxiliary water retaining lip side and a second inserting part. The first inserting part is connected with the edge of the photovoltaic panel in an inserting mode, and the main water retaining lip edge and the first auxiliary water retaining lip edge provide double sealing. The clamping connecting piece is in a U shape, the two ends of the clamping connecting piece are clamping edges, a water guide channel is formed by the clamping connecting piece and the bottom face, and the second inserting part is inserted into the clamping edges. The pressing plate is detachably connected with the clamping connecting piece above the water guide channel and abuts against the upper surface of the first inserting part in a contact mode. Through close cooperation of the sealing strips, the clamping connecting pieces and the pressing plates, a multi-stage waterproof structure is formed, the problems that the edge fixing position of an existing photovoltaic panel is poor in sealing effect and prone to water accumulation and water seepage, and corrosion is caused are effectively solved, the service life of the photovoltaic panel is remarkably prolonged, and the waterproof performance of the photovoltaic panel is remarkably improved.

Description

Technical Field

[0001] The present invention relates to the technical field of photovoltaic power generation, and more specifically, to a multi-level waterproof component and a photovoltaic power generation system having the same. Background Art

[0002] Photovoltaic power generation mainly relies on the photovoltaic effect of semiconductors to convert light energy into electrical energy. Currently, the common installation method of photovoltaic panels is to fix them on the roof or the top of other buildings through brackets and expose them outdoors all day long. This installation method makes it easy for rainwater to accumulate in the low-lying areas and connection gaps of the photovoltaic panels during rainy days, which may lead to corrosion of the connection parts and reduce the service life of the photovoltaic structure. In addition, in the existing photovoltaic installation structure, the rainwater seeping out from the connection gaps of the brackets will directly fall on the roof, which is likely to cause corrosion of the roof connection parts, and long-term water seepage may also lead to roof leakage.

[0003] For the traditional sealing method between multiple photovoltaic panels arranged in an array, the sealing between the horizontal and vertical directions is arranged separately, resulting in poor sealing effect at the cross position.

[0004] Therefore, how to provide a new multi-level waterproof component and a photovoltaic power generation system having the same, which can independently seal the perimeter of each photovoltaic panel and avoid cross-sealing between multiple photovoltaic panels, is an urgent problem to be solved by those skilled in the art. Summary of the Invention

[0005] In view of this, the present invention provides a multi-level waterproof component and a photovoltaic power generation system having the same, aiming to solve the technical problem that when sealing the gaps between multiple photovoltaic panels in the traditional way, the horizontal and vertical gaps are sealed separately, resulting in poor sealing effect at the cross position.

[0006] A multi-level waterproof component for sealing the edge fixing part of a photovoltaic panel, comprising:

[0007] A sealing strip, which is wrapped around the edge of the photovoltaic panel. The cross-section of the sealing strip includes a first plugging part, a main water-blocking lip, a first auxiliary water-blocking lip, and a second plugging part. The first plugging part has a plugging groove and is plugged with the edge of the photovoltaic panel; the main water-blocking lip is fixedly connected to the top wall of the first plugging part and close to the edge of the plugging groove opening; the first auxiliary water-blocking lip is fixedly connected to the top wall of the first plugging part corresponding to the side of the main water-blocking lip away from the plugging groove opening to elastically seal the relative surface between the first plugging part and the photovoltaic panel; the second plugging part is fixedly connected to the side surface of the first plugging part away from the photovoltaic panel;

[0008] A clamping connecting piece, which is U-shaped. The two ends of the clamping connecting piece are clamping edges, and the clamping edges and the bottom surface of the clamping connecting piece form a water guiding channel. The second plugging part is plugged with the clamping edge;

[0009] The pressing plate is detachably connected to the clamping and connecting part above the water guiding channel and is in contact with and abuts against the upper surface of the first inserting part.

[0010] Through the above technical solution, in the present invention, a sealing strip is wrapped around the edge of the photovoltaic panel, and the second inserting part that can be inserted into the clamping edge is provided on the sealing strip, so that the photovoltaic panel can be installed on the clamping and connecting part through the sealing strip. The sealing strip also has a main water blocking lip and a first auxiliary water blocking lip to double-seal the gap between the photovoltaic panel and the top of the first inserting part. The top of the first inserting part is also sealed by the pressing plate in contact with and abutting against the upper surface of the first inserting part. The water that penetrates through the overlapping gap between the pressing plate and the first inserting part can be discharged through the water guiding channel. It has the characteristics of sealing the perimeter of the photovoltaic panel, multiple waterproofing, and the ability to discharge the penetrated water.

[0011] Preferably, the cross-section of the sealing strip further includes a core material, which is embedded inside the first inserting part and the second inserting part and is integrally formed with the first inserting part and the second inserting part. The core material supports the clamping surfaces of the first inserting part and the second inserting part.

[0012] Preferably, the core material includes a core material main body, a first flanging, a second flanging, and a third flanging. The core material main body is L-shaped. The first flanging is arranged opposite to the horizontal plane of the core material main body. A plurality of first flangings and second flangings are arranged on both sides of the vertical surface of the core material main body and are arranged alternately along the length direction of the core material main body. The third flanging is arranged parallel to the vertical surface of the core material main body and is fixedly connected to the end of the second flanging far from the core material main body.

[0013] Preferably, the inclination directions of the main water blocking lip and the first auxiliary water blocking lip face the vertical surface of the core material main body.

[0014] Preferably, the cross-section of the sealing strip further includes a lapping lip, which is fixedly connected to the bottom edge of the clamping surface of the second inserting part, and its inclination direction faces the vertical surface of the core material main body.

[0015] Preferably, the cross-section of the sealing strip further includes a second auxiliary water blocking lip, which is located inside the bottom lapping lip and is fixedly connected to the second inserting part, and elastically seals between the opposite surfaces of the second inserting part and the clamping and connecting part.

[0016] A photovoltaic power generation system includes: a mounting frame and a multi-stage waterproof component;

[0017] The mounting frame includes a bottom plate, on which a plurality of mounting holes are evenly opened. The edge of the bottom plate extends with an edge sealing plate in a direction perpendicular to the plate surface of the bottom plate. The edge of the mounting hole extends with a clamping plate in a direction perpendicular to the plate surface of the bottom plate. The clamping plate is a clamping edge, and the U-shaped groove formed between the adjacent two clamping plates and the bottom plate is a water guiding channel;

[0018] A plurality of sealing strips are respectively detachably connected to the clamping plates corresponding to the plurality of mounting holes;

[0019] The pressing plate is provided with a relief hole arranged opposite to the mounting hole. The pressing plate is detachably connected to the bottom plate and is in contact with the top end of the edge sealing plate.

[0020] Through the above technical solutions, the present invention realizes excellent waterproof performance through the coordinated cooperation of the mounting frame, the sealing strip, the clamping connecting piece and the pressing plate. By using the water guiding channel formed by the clamping plate of the mounting frame and combining it with the multi-stage sealing structure of the sealing strip, rainwater penetration and accumulation are effectively prevented. At the same time, the detachable connection design of the pressing plate with the bottom plate and the edge sealing plate not only enhances the structural stability but also makes installation and maintenance more convenient. Overall, the service life of the photovoltaic power generation system is extended, and its reliability under various climatic conditions is improved.

[0021] Preferably, it further includes a support frame. The support surface of the support frame is inclined and is detachably connected to the back surface of the bottom plate.

[0022] Preferably, a water leakage hole is provided at the low point of the edge sealing plate.

[0023] Preferably, it further includes nuts and screws. A plurality of nuts are fixedly connected to the upper plate surface of the bottom plate. The pressing plate is provided with screw through holes arranged corresponding to the nuts, and the screws pass through the screw through holes and are screwed with the nuts.

[0024] It can be seen from the above technical solutions that compared with the prior art, the present invention discloses a multi-stage waterproof component and a photovoltaic power generation system having the same, and has the following beneficial effects:

[0025] The sealing strip, the clamping connecting piece and the pressing plate cooperate with each other to form a multi-stage sealing and water guiding structure. The first insertion part of the sealing strip is inserted into the edge of the photovoltaic panel, providing an installation basis for the main water blocking lip and the first auxiliary water blocking lip to achieve double sealing. The second insertion part is inserted into the clamping edge of the clamping connecting piece to fix the sealing strip on the clamping connecting piece. The pressing plate further compresses the sealing strip to enhance the sealing effect, and at the same time forms a water guiding channel with the clamping connecting piece, enabling a small amount of infiltrated water to be discharged smoothly. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a three-dimensional schematic diagram of a multi-stage waterproof component provided by the present invention;

[0027] Figure 2 It is a structural schematic diagram of the cross-section of the sealing strip provided by the present invention;

[0028] Figure 3 It is a three-dimensional schematic diagram of the core material provided by the present invention;

[0029] Figure 4 It is a three-dimensional schematic diagram of a photovoltaic power generation system provided by the present invention;

[0030] Figure 5A partial cross-sectional view of a photovoltaic power generation system provided by the present invention from another perspective;

[0031] Figure 6 is Figure 5 A partial enlarged view of part A;

[0032] Figure 7 is Figure 5 A partial enlarged view of part B;

[0033] Figure 8 An exploded view of a photovoltaic power generation system provided by the present invention;

[0034] Figure 9 A three-dimensional schematic diagram of a pressing plate provided by the present invention;

[0035] Figure 10 A three-dimensional schematic diagram of an installation frame provided by the present invention;

[0036] Figure 11 is Figure 10 A partial enlarged view of part C;

[0037] Figure 12 A three-dimensional schematic diagram of a support frame provided by the present invention.

[0038] Wherein: 1 - clamping connection member; 2 - sealing strip; 3 - pressing plate; 4 - installation frame; 5 - nut; 6 - support frame; 7 - screw; 10 - photovoltaic panel; 11 - clamping edge; 12 - water guide channel; 20 - cross-section of the sealing strip; 21 - first plug-in part; 22 - main water blocking lip; 23 - first auxiliary water blocking lip; 24 - second plug-in part; 25 - core material; 26 - overlapping lip; 27 - second auxiliary water blocking lip; 28 - overlapping short side; 29 - side wall sealing edge; 31 - relief hole; 32 - screw through hole; 41 - bottom plate; 42 - edge sealing plate; 43 - clamping plate; 251 - main body; 252 - first flanging; 253 - second flanging; 254 - third flanging; 411 - installation hole. Detailed implementation manners

[0039] The principles and features of the present invention will be described below with reference to the accompanying drawings. The examples given are only for explaining the present invention and are not intended to limit the scope of the present invention.

[0040] Example 1:

[0041] Referring to the attached Figures 1-3 , an embodiment of the present invention discloses a multi-level waterproof component for sealing the edge fixing part of the photovoltaic panel 10, including: a sealing strip 2, a clamping connection member 1, and a pressing plate 3;

[0042] The sealing strip 2 is wrapped around the edge of the photovoltaic panel 10. The cross-section 20 of the sealing strip 2 includes a first plugging portion 21, a main water-blocking lip 22, a first auxiliary water-blocking lip 23, and a second plugging portion 24. The first plugging portion 21 has a plugging groove and is plugged with the edge of the photovoltaic panel 10. The main water-blocking lip 22 is fixedly connected to the top wall of the first plugging portion 21 and near the edge of the plugging groove opening. The first auxiliary water-blocking lip 23 is fixedly connected to the top wall of the first plugging portion 21 corresponding to the side of the main water-blocking lip 22 away from the plugging groove opening to elastically seal the opposite surface between the first plugging portion 21 and the photovoltaic panel 10. The second plugging portion 24 is fixedly connected to the side surface of the first plugging portion 21 away from the photovoltaic panel 10.

[0043] The clamping and connecting member 1 is U-shaped. The two ends of the clamping and connecting member 1 are clamping edges 11. The clamping edges 11 and the bottom surface of the clamping and connecting member 1 form a water guiding channel 12. The second plugging portion 24 is plugged with the clamping edge 11.

[0044] The pressing plate 3 is detachably connected to the clamping and connecting member 1 corresponding to the upper part of the water guiding channel 12 and is in contact with and abuts against the upper surface of the first plugging portion 21.

[0045] Specifically, the number of the first auxiliary water-blocking lips 23 is two, and they are arranged at intervals along the direction away from the main water-blocking lip 22.

[0046] More specifically, the cross-section 20 of the sealing strip further includes a lapping short side 28. The lapping short side 28 is fixedly connected to the bottom wall of the first plugging portion 21 and near the edge of the plugging groove opening.

[0047] More specifically, it further includes a side wall sealing edge 29. The side wall sealing edge 29 is fixedly connected to the side wall of the first plugging portion 21 and elastically seals between the side wall of the first plugging portion 21 and the side wall surface of the photovoltaic panel 10.

[0048] In some embodiments, the cross-section 20 of the sealing strip further includes a core material 25. The core material 25 is embedded inside the first plugging portion 21 and the second plugging portion 24 and is integrally formed with the first plugging portion 21 and the second plugging portion 24. The core material 25 supports the clamping surfaces of the first plugging portion 21 and the second plugging portion 24.

[0049] In some other embodiments, the core material 25 includes a core material main body 251, a first flanging 252, a second flanging 253, and a third flanging 254. The core material main body 251 is L-shaped. The first flanging 252 is arranged opposite to the horizontal plane of the core material main body 251. A plurality of first flangings 252 and second flangings 253 are arranged on both sides of the vertical surface of the core material main body 251 and are arranged alternately along the length direction of the core material main body 251. The third flanging 254 is arranged parallel to the vertical surface of the core material main body 251 and is fixedly connected to the end of the second flanging 253 away from the core material main body 251.

[0050] In one embodiment, the inclined directions of the main water-blocking lip 22 and the first auxiliary water-blocking lip 23 face the vertical surface of the core material body 251. Thus, it is in the same direction as the insertion direction when the photovoltaic panel 10 is installed, which is more convenient for the insertion of the photovoltaic panel 10.

[0051] In one embodiment, the cross-section 20 of the sealing strip further includes a lapping lip 26. The lapping lip 26 is fixedly connected to the bottom edge of the clamping surface of the second plugging part 24, and its inclined direction faces the vertical surface of the core material body 251.

[0052] In some embodiments, the cross-section 20 of the sealing strip further includes a second auxiliary water-blocking lip 27. The second auxiliary water-blocking lip 27 is located inside the bottom lapping lip 26 and is fixedly connected to the second plugging part 24, and elastically seals between the opposite surfaces of the second plugging part 24 and the clamping and connecting part 1.

[0053] The specific principle of a multi-level waterproof component provided in this embodiment is as follows:

[0054] This multi-level waterproof component realizes preliminary sealing through the sealing strip 2. Its first plugging part 21 and second plugging part 26 are respectively plugged with the edge of the photovoltaic panel 10 and the clamping and connecting part 1. The main water-blocking lip 22, the first auxiliary water-blocking lip 23, the second auxiliary water-blocking lip 27 and the lapping lip 26 on the sealing strip 2 form multiple sealing lines to block rainwater from seeping in; the water guiding channel 12 of the clamping and connecting part 1 can timely drain a small amount of infiltrated rainwater; the pressing plate 3 presses the sealing strip 2 to enhance the sealing effect and stabilize the component. Overall, through the multi-level sealing of the sealing strip 2 and the water guiding function of the clamping and connecting part 1, this component effectively prevents rainwater from seeping in and accumulating.

[0055] Embodiment 2:

[0056] Refer to the appendix Figures 4-12 , this embodiment of the present invention discloses a photovoltaic power generation system, including: an installation frame 4 and a multi-level waterproof component;

[0057] The installation frame 4 includes a bottom plate 41. A plurality of installation holes 411 are evenly opened on the bottom plate 41. The edge of the bottom plate 41 extends an edge sealing plate 42 along the direction perpendicular to the plate surface of the bottom plate 41. The edge of the installation hole 411 extends a clamping plate 43 along the direction perpendicular to the plate surface of the bottom plate 41. The clamping plate 43 is a clamping edge 11, and the U-shaped groove formed between the bottom plate 41 and adjacent two clamping plates 43 is a water guiding channel 12;

[0058] A plurality of sealing strips 2 are respectively detachably connected to the clamping plates 43 corresponding to the plurality of installation holes 411;

[0059] The pressing plate 3 is provided with a relief hole 31 arranged opposite to the mounting hole 411. The pressing plate 3 is detachably connected to the bottom plate 41 and is in contact with the top end of the edge sealing plate 42. Thus, the clamping plate 43 and the water guiding channel 12 of the mounting frame 4 cooperate with the sealing strip 2 and the pressing plate 3 to achieve the stable installation and effective sealing of the photovoltaic panel 10. At the same time, a small amount of infiltrated water is smoothly discharged by using the water guiding channel 12, improving the overall waterproof performance of the system.

[0060] In some embodiments, it further includes a support frame 6. The supporting surface of the support frame 6 is inclined and is detachably connected to the back surface of the bottom plate 41. Thus, the inclined supporting surface design of the support frame 6 can adapt to different installation angle requirements, enabling the photovoltaic power generation system to better adapt to various building structures and geographical environments, and improving the installation flexibility and adaptability of the system. At the same time, the inclined supporting surface helps the natural flow of rainwater, reducing the accumulation of rainwater on the bottom plate 41 and further improving the waterproof performance of the system.

[0061] In some other embodiments, a water leakage hole is provided at the low point position of the edge sealing plate 42. Thus, the water leakage hole is provided at the low point position of the edge sealing plate 42, facilitating the discharge of accumulated rainwater, preventing the long-term accumulation of rainwater inside the edge sealing plate 42, reducing the risk of structural damage, such as preventing the bottom plate 41 from rusting and deforming, etc., and extending the service life of the mounting frame 4.

[0062] In one embodiment, it further includes nuts 5 and screws 7. A plurality of nuts 5 are fixedly connected to the upper plate surface of the bottom plate 41. The pressing plate 3 is provided with screw through holes 32 arranged corresponding to the nuts 5, and the screws 7 pass through the screw through holes 32 and are screwed with the nuts 5.

[0063] The specific principle and usage method of a multi-stage waterproof component and a photovoltaic power generation system having the same provided in this embodiment are as follows:

[0064] The photovoltaic power generation system of the present invention realizes the waterproof function through the coordinated work of the mounting frame 4 and the multi-stage waterproof component. The clamping plate 43 and the water guiding channel 12 of the mounting frame 4 cooperate with the sealing strip 2 and the pressing plate 3 to ensure the stable installation and effective sealing of the photovoltaic panel 10. The water guiding channel 12 timely discharges a small amount of infiltrated water, improving the waterproof performance of the system. The inclined design of the support frame 6 adapts to different installation angles, facilitating the natural flow of rainwater and reducing the accumulation of water on the bottom plate. The water leakage hole at the low point of the edge sealing plate 42 facilitates the discharge of accumulated rainwater and reduces the risk of structural damage. The connection method of the nuts 5 and the screws 7 stably connects the pressing plate 3 and the bottom plate 41, facilitating installation and maintenance.

[0065] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. A multi-level waterproof component for sealing the edge fixing part of a photovoltaic panel (10), characterized in that, Comprising: A sealing strip (2), the sealing strip (2) being wrapped around the edge of the photovoltaic panel (10), the cross-section (20) of the sealing strip (2) including a first plug-in portion (21), a main water-blocking lip (22), a first auxiliary water-blocking lip (23) and a second plug-in portion (24), the first plug-in portion (21) having a plug-in groove and being plugged into the edge of the photovoltaic panel (10); the main water-blocking lip (22) being fixedly connected to the top wall of the first plug-in portion (21) and close to the edge of the plug-in groove opening; the first auxiliary water-blocking lip (23) being fixedly connected to the top wall of the first plug-in portion (21) corresponding to the side of the main water-blocking lip (22) away from the plug-in groove opening to elastically seal the relative surface between the first plug-in portion (21) and the photovoltaic panel (10); the second plug-in portion (24) being fixedly connected to the side surface of the first plug-in portion (21) away from the photovoltaic panel (10); A snap-connecting connector (1), the snap-connecting connector (1) being U-shaped, both ends of the snap-connecting connector (1) being snap-connecting edges (11), the snap-connecting edges (11) and the bottom surface of the snap-connecting connector (1) forming a water-conducting channel (12), the second plug-in portion (24) being plugged into the snap-connecting edge (11); A pressing plate (3), the pressing plate (3) being detachably connected to the snap-connecting connector (1) corresponding to the upper part of the water-conducting channel (12) and being in contact with and abutted against the upper surface of the first plug-in portion (21).

2. The multi - level waterproof component according to claim 1, wherein, The cross-section (20) of the sealing strip further includes a core material (25), the core material (25) being embedded inside the first plug-in portion (21) and the second plug-in portion (24) and being integrally formed with the first plug-in portion (21) and the second plug-in portion (24), the core material (25) supporting the clamping surfaces of the first plug-in portion (21) and the second plug-in portion (24).

3. The multi - stage waterproof component according to claim 2, characterized in that, The core material (25) includes a core material main body (251), a first flanging (252), a second flanging (253) and a third flanging (254), the core material main body (251) being L-shaped, the first flanging (252) being arranged opposite to the horizontal plane of the core material main body (251), a plurality of the first flangings (252) and the second flangings (253) being arranged on both sides of the vertical surface of the core material main body (251) and being arranged staggeredly along the length direction of the core material main body (251), the third flanging (254) being arranged parallel to the vertical surface of the core material main body (251) and being fixedly connected to the end of the second flanging (253) away from the core material main body (251).

4. The multi - stage waterproof component according to claim 3, wherein The inclination directions of the main water-blocking lip (22) and the first auxiliary water-blocking lip (23) face the vertical surface of the core material main body (251).

5. The multi - level waterproof component according to claim 3, characterized in that, The cross-section (20) of the sealing strip further includes a lapping lip (26), the lapping lip (26) being fixedly connected to the bottom edge of the clamping surface of the second plug-in portion (24), and its inclination direction facing the vertical surface of the core material main body (251).

6. The multi-stage waterproof component according to claim 5, wherein The cross-section of the sealing strip (20) further includes a second auxiliary water-blocking lip (27). The second auxiliary water-blocking lip (27) is located inside the bottom-end lapping lip (26) and is fixedly connected to the second insertion part (24), and elastically seals between the opposite surfaces of the second insertion part (24) and the clamping connecting part (1).

7. A photovoltaic power generation system, characterized in that, Comprising: An installation frame (4) and the multi-stage waterproof assembly according to any one of claims 1-6; The installation frame (4) includes a bottom plate (41). A plurality of installation holes (411) are evenly formed in the bottom plate (41). An edge sealing plate (42) extends from the edge of the bottom plate (41) in a direction perpendicular to the plate surface of the bottom plate (41). A clamping plate (43) extends from the edge of the installation hole (411) in a direction perpendicular to the plate surface of the bottom plate (41). The clamping plate (43) is the clamping edge (11). The U-shaped groove formed between the adjacent two clamping plates (43) and the bottom plate (41) is a water guiding channel (12); A plurality of the sealing strips (2) are respectively detachably connected to the clamping plates (43) corresponding to the plurality of installation holes (411); The pressing plate (3) is provided with a relief hole (31) arranged opposite to the installation hole (411). The pressing plate (3) is detachably connected to the bottom plate (41) and is in contact with the top end of the edge sealing plate (42).

8. The multi - stage waterproof component according to claim 7, characterized in that, It further includes a support frame (6). The support surface of the support frame (6) is inclined and is detachably connected to the back surface of the bottom plate (41).

9. The multi - stage waterproof component according to claim 8, characterized in that, A water leakage hole is formed at the low point position of the edge sealing plate (42).

10. The multi - level waterproof component according to claim 7, wherein, It further includes nuts (5) and screws (7). A plurality of the nuts (5) are fixedly connected to the upper plate surface of the bottom plate (41). The pressing plate (3) is provided with screw through holes (32) arranged corresponding to the nuts (5). The screws (7) pass through the screw through holes (32) and are screwed with the nuts (5).

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