Lightweight BIPV photovoltaic roof integrated structure and construction method

Abstract

The invention relates to the field of photovoltaic roofs, in particular to a light building integrated photovoltaics (BIPV) photovoltaic roof integrated structure and a construction method. The mounting base comprises a plurality of mounting units; each installation unit comprises an installation seat, a photovoltaic assembly and a limiting and reinforcing assembly. The mounting seats of the adjacent mounting units are mutually connected to form an integrated base, and each group of mounting seats is provided with a mounting groove; a row of photovoltaic modules are arranged in the mounting groove in a sliding manner, and a telescopic enhancing module is arranged between the adjacent photovoltaic modules; and the limiting and reinforcing assembly is arranged along the periphery of the mounting groove and is used for limiting and reinforcing the photovoltaic assembly. Rapid installation and flexible adjustment are achieved through modular design and sliding connection, the unique telescopic limiting and reinforcing assemblies are used for forming an L-shaped buckle structure, the overall stability and the wind resistance are remarkably improved, and meanwhile the sealing design and the simple and convenient maintainability are suitable for large-scale roof engineering application.

Description

Technical Field

[0001] This invention relates to the field of photovoltaic roofs, and more particularly to a lightweight BIPV integrated photovoltaic roof structure and construction method. Background Technology

[0002] BIPV, or Building Integrated Photovoltaics, deeply integrates solar photovoltaic power generation systems with building materials, making them an integral part of the building. BIPV rooftops are the most mainstream form; they are no longer "add-ons" installed on the roof, but rather the roof itself, combining multiple functions such as power generation, waterproofing, insulation, heat insulation, and aesthetics. Its core difference from traditional photovoltaic systems lies in "integration" and "installation."

[0003] Chinese patent document CN218714452U discloses a BIPV photovoltaic roof, including a roof, keel, purlins, corrugated steel sheets, and photovoltaic modules. The corrugated steel sheets are fixed to the roof by the keel, and the photovoltaic modules are fixed to the corrugated steel sheets by the purlins. A ridge seat is connected to the ridge of the roof by a fastener. One end of the photovoltaic module is provided with a first locking block. Opposite fixing parts are provided on both sides of the ridge seat. The fixing parts are connected to the first locking blocks by a cover plate. The cover plate is provided with a second locking block and a first locking groove that cooperates with the first locking block. The fixing parts are provided with a second locking groove that cooperates with the second locking block.

[0004] The aforementioned BIPV photovoltaic roof adds an extra power generation system consisting of purlins and photovoltaic modules on top of a traditional corrugated steel roof. This "roof within a roof" design results in a large amount of material usage, cumbersome construction steps, and a bulky overall structure, failing to achieve a deep integration of structure and function. Its waterproof performance heavily relies on waterproof strips at multiple connection points. These seals are prone to aging and failure under harsh conditions such as long-term outdoor exposure and temperature fluctuations. Once damaged, rainwater can easily seep into the interior along the gaps in the grooves, potentially causing electrical short circuits and corroding the underlying corrugated steel roof and roof structure. Furthermore, the photovoltaic modules are only fixed to the corrugated steel roof via purlins, raising concerns about the strength of the connection to the roof and its wind pressure resistance, posing a safety hazard. Summary of the Invention

[0005] To address the problems existing in the background technology, a lightweight BIPV photovoltaic roof integrated structure and construction method are proposed. Through modular design and sliding connection, rapid installation and flexible adjustment are achieved. The unique telescopic limiting and reinforcing components form an L-shaped snap-fit ​​structure, which significantly enhances the overall stability and wind resistance. At the same time, its sealing design and easy maintenance make it suitable for large-scale roof engineering applications.

[0006] This invention proposes a lightweight BIPV (Building Integrated Photovoltaic) roof structure, comprising multiple installation units. Each installation unit includes a mounting base, photovoltaic modules, and a limiting and reinforcing assembly. The mounting bases of adjacent installation units are interconnected to form an integrated base, and each set of mounting bases is provided with a mounting groove. A row of photovoltaic modules is slidably mounted in the mounting groove, and telescopic reinforcement assemblies are provided between adjacent photovoltaic modules. The limiting and reinforcing assemblies are arranged along the outer perimeter of the mounting groove to limit and reinforce the photovoltaic modules. The telescopic reinforcement assemblies include multiple sets of parallel reinforcing frames slidably arranged between adjacent photovoltaic modules. Telescopic straps are provided between adjacent reinforcing frames to form a bellows telescopic structure.

[0007] Preferably, the photovoltaic module includes a mounting base; the photovoltaic panel is disposed at the center of the mounting base, and a mounting flange is disposed around the outer periphery.

[0008] Preferably, the telescopic reinforcement component includes mounting plates located at both ends of the bellows telescopic structure; the mounting plates are connected to the mounting flanges on the corresponding sides; the mounting plates and the mounting flanges on the corresponding sides are fixedly connected by bolts.

[0009] Preferably, a slide rail is provided at the bottom of the mounting slot; a pulley 1 that slides along the slide rail is provided at the bottom of the mounting base; and a pulley 2 that slides along the slide rail is provided at the bottom of the reinforcing frame.

[0010] Preferably, the limiting and reinforcing component includes a mounting bracket located on the mounting base; a horizontally sliding slider is provided on the mounting bracket; a limiting and reinforcing component is provided at the head end of the slider, and a limiting plate is provided at the tail end; the limiting plate and the mounting bracket are fixed together by two bolts.

[0011] Preferably, the limiting reinforcement component includes a limiting frame connected to the slider; storage openings are provided on both sides of the front end of the limiting frame, and a drive box is provided in the middle of the front end; a limiting reinforcement strip is provided in the storage opening; the limiting reinforcement strip is driven by the drive component in the drive box to slide towards both sides of the storage opening.

[0012] Preferably, the driving component includes a gear one located inside the driving housing; the gear one is driven to rotate by turning a knob; a gear two is provided inside the driving housing; the gear two is meshed with the gear one, and at the same time, the gear two is keyed to a lead screw; the lead screw rotates through the driving housing and engages with the threaded limit reinforcement bar on the corresponding side, driving it to move horizontally.

[0013] Preferably, a guide groove is provided at the top of the storage opening; a sliding strip that cooperates with the guide groove is provided at the top of the limiting and reinforcing strip, a flipping frame is provided at the bottom, and a limiting frame is provided on the outside.

[0014] Preferably, the flipping frame is located in the groove in front of the limiting and reinforcing strip, and is rotatably connected to the groove wall on one side facing the photovoltaic module, while the other side is movable.

[0015] This invention further proposes a lightweight BIPV photovoltaic roof integrated construction method, which adopts the above-mentioned lightweight BIPV photovoltaic roof integrated structure, and the construction steps are as follows: S1. Select an appropriate number of photovoltaic modules and telescopic reinforcement modules; the mounting plate and the corresponding mounting flange are fixedly connected by bolts, and the required number of bellows telescopic structures are prepared in advance; S2. Place the accordion telescopic structure into the corresponding mounting slot; adjust the length of the accordion telescopic structure by using pulley one, pulley two and the slide rail to cover the entire mounting slot; S3. Move the limit bracket forward onto the mounting protrusion, then turn the knob. The limit reinforcement strip extends to both sides along the surface of the mounting protrusion and exposes the groove. S4. Flip the flipping frame downwards, and then move the limiting frame back until it fits against the outer wall of the mounting protrusion. At this time, the flipping frame and the limiting reinforcement strip form an L-shaped structure, which can further lock the mounting protrusion. S5. Complete the assembly of all installation units in sequence, and then fix the integrated roof to the roof.

[0016] Compared with the prior art, the present invention has the following beneficial technical effects: This structure achieves rapid installation and flexible adjustment through modular design and sliding connection. Multiple installation units can be combined into an integrated base, and the photovoltaic modules are easily adjusted by using pulleys and rails. The telescopic reinforcement modules form an accordion-like structure to adapt to different installation sizes, significantly improving construction efficiency and adaptability.

[0017] A unique limiting and reinforcing component is used to achieve multi-directional locking and enhanced protection of photovoltaic modules. By extending and retracting the limiting and reinforcing strips laterally and flipping the rotating frame vertically, an L-shaped buckle structure is formed, which firmly clamps the installation protrusion and effectively resists external forces such as wind loads, thereby improving the overall structural stability and deformation resistance.

[0018] The overall structure is lightweight and features excellent sealing and maintainability. The telescopic belt design reduces dust ingress and extends service life; assembly and adjustment of all components are achieved through bolts and sliders, making assembly and disassembly simple and facilitating later maintenance and replacement, making it suitable for large-scale BIPV roofing projects. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of a lightweight BIPV (Building Integrated Photovoltaic) roof structure. Figure 2 A structural diagram of a single installation unit; Figure 3 A breakdown diagram of a single installation unit; Figure 4 A bottom view of the combination of photovoltaic modules and telescopic reinforcement modules; Figure 5 for Figure 4 Enlarged view of point A in the middle; Figure 6 Schematic diagram of the limit reinforcement component (State 1); Figure 7 Schematic diagram of the limit reinforcement component (state two); Figure 8 for Figure 7 A bottom view.

[0020] Reference numerals: 1. Mounting base; 101. Mounting groove; 102. Slide rail; 2. Photovoltaic module; 201. Photovoltaic panel; 202. Mounting flange; 203. Mounting base; 204. Pulley one; 3. Telescopic reinforcement component; 301. Mounting plate; 302. Telescopic belt; 303. Pulley two; 304. Reinforcement frame; 4. Limiting and reinforcing component; 401. Mounting frame; 402. Limiting frame; 403. Limiting and reinforcing strip; 404. Limiting plate; 405. Knob; 406. Flip frame; 407. Slide bar; 408. Slider; 409. Lead screw. Detailed Implementation

[0021] Example 1: This example proposes a lightweight BIPV (Building Integrated Photovoltaic) roof structure, such as... Figures 1-2 As shown, the system includes multiple installation units; each installation unit includes a mounting base 1, a photovoltaic module 2, and a limiting and reinforcing component 4. The mounting bases 1 of adjacent installation units are connected to each other to form an integrated base, and each set of mounting bases 1 is provided with a mounting groove 101; a row of photovoltaic modules 2 is slidably arranged in the mounting groove 101, and a telescopic reinforcement component 3 is provided between adjacent photovoltaic modules 2; the limiting and reinforcing component 4 is arranged along the outer periphery of the mounting groove 101 to limit and reinforce the photovoltaic modules 2; the telescopic reinforcement component 3 includes multiple sets of mutually parallel and slidably arranged reinforcement frames 304 between adjacent photovoltaic modules 2; a telescopic belt 302 is provided between adjacent reinforcement frames 304 to form a bellows telescopic structure.

[0022] like Figures 3-4 As shown, the photovoltaic module 2 includes a mounting base 203; a photovoltaic panel 201 is disposed at the center of the mounting base 203, and a mounting flange 202 is disposed around the outer periphery.

[0023] The telescopic reinforcement component 3 includes mounting plates 301 located at both ends of the bellows telescopic structure; the mounting plates 301 are connected to the corresponding mounting flanges 202; the mounting plates 301 and the corresponding mounting flanges 202 are fixedly connected by bolts; the bellows telescopic structure expands and contracts synchronously as the mounting plates 301 on both sides move. The reinforcement frame 304 can increase the overall strength. The telescopic belt 302 can reduce the ingress of external dust and debris.

[0024] like Figure 3 and Figure 5As shown, a slide rail 102 is provided at the bottom of the mounting groove 101; a pulley 204 that slides along the slide rail 102 is provided at the bottom of the mounting base 203; a pulley 303 that slides along the slide rail 102 is provided at the bottom of the reinforcing frame 304; by setting pulley 204, pulley 303 and slide rail 102 together, the bellows telescopic structure can be extended and retracted stably and the length can be adjusted.

[0025] like Figures 6-8 As shown, the limiting and reinforcing assembly 4 includes a mounting bracket 401 located on the mounting base 1; a horizontally sliding slider 408 is provided on the mounting bracket 401; a limiting reinforcement member is provided at the head end of the slider 408, and a limiting plate 404 is provided at the tail end; the limiting plate 404 and the mounting bracket 401 are fixed together by bolts; the sliding of the slider 408 drives the limiting reinforcement member to move back and forth. When the limiting reinforcement member moves backward, it releases the fixation of the bellows telescopic structure. When the limiting reinforcement member moves forward, it limits and fixes the bellows telescopic structure.

[0026] The limiting reinforcement component includes a limiting frame 402 connected to the slider 408; the limiting frame 402 has storage openings on both sides of its front end and a drive box in the middle of its front end; a limiting reinforcement strip 403 is installed inside the storage opening; the limiting reinforcement strip 403 is driven by a drive component in the drive box to slide towards both sides of the storage opening; the limiting frame 402 moves back and forth, and the limiting reinforcement strip 403 moves synchronously. Under the action of the drive component, the limiting reinforcement strip 403 moves synchronously to both sides, thereby adjusting the limiting reinforcement range.

[0027] The driving component includes a gear 1 located inside the drive housing; the gear 1 is rotated by rotating the knob 405; a gear 2 is provided inside the drive housing; the gear 2 meshes with the gear 1, and at the same time, the gear 2 is keyed to the lead screw 409; the lead screw 409 rotates through the drive housing and is threadedly engaged with the corresponding side limit reinforcement strip 403, causing it to move horizontally; when the limit reinforcement range is extended, the limit bracket 402 moves forward onto the mounting protrusion 202, and then the knob 405 is rotated, and the limit reinforcement strip 403 extends to both sides along the surface of the mounting protrusion 202, thereby achieving limit reinforcement at different positions.

[0028] A guide groove is provided at the top of the storage opening; a sliding bar 407 that cooperates with the guide groove is provided at the top of the limiting and reinforcing bar 403, a flipping frame 406 is provided at the bottom, and a limiting frame is provided on the outside; the limiting and reinforcing bar 403 can move horizontally through the cooperation of the sliding bar 407 and the guide groove.

[0029] The flip-up frame 406 is located in the groove in front of the limiting and reinforcing strip 403, rotating and connecting to the groove wall on one side facing the photovoltaic module 2, while the other side is movable. When the limiting frame 402 moves forward to the mounting protrusion 202, exposing the groove, the flip-up frame 406 flips downward, and then the limiting frame 402 is moved backward until it fits against the outer wall of the mounting protrusion 202. At this time, the flip-up frame 406 and the limiting and reinforcing strip 403 form an L-shaped structure, which can further lock the mounting protrusion 202, achieving the purpose of limiting and reinforcing.

[0030] Example 2: This example provides a lightweight BIPV photovoltaic roof integrated construction method, using the lightweight BIPV photovoltaic roof integrated structure described in Example 1. The construction steps are as follows: S1. Select an appropriate number of photovoltaic modules 2 and telescopic reinforcement modules 3; the mounting plate 301 is fixedly connected to the mounting flange 202 on the corresponding side by bolts, and the required number of bellows telescopic structures are prepared in advance; S2. Place the accordion telescopic structure into the corresponding mounting slot 101; adjust the length of the accordion telescopic structure by means of pulley 1 204, pulley 2 303 and slide rail 102, so that it covers the entire mounting slot 101. S3. The limit bracket 402 moves forward onto the mounting protrusion 202. Then, the knob 405 is turned, and the limit reinforcement strip 403 extends to both sides along the surface of the mounting protrusion 202, exposing the groove. S4. Flip the flipping frame 406 downwards, and then move the limiting frame 402 back to fit the outer wall of the installation protrusion 202 against the flipping frame 406. At this time, the flipping frame 406 and the limiting reinforcement strip 403 form an L-shaped structure, which can further lock the installation protrusion 202. S5. Complete the assembly of all installation units in sequence, and then fix the integrated roof to the roof.

[0031] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A lightweight BIPV (Building Integrated Photovoltaic) roof structure, characterized in that, Includes multiple installation units; each installation unit includes: Mounting base (1), the mounting bases (1) of adjacent mounting units are connected to each other to form an integrated base, and each set of mounting bases (1) is provided with a mounting groove (101). Photovoltaic module (2), a row of photovoltaic modules (2) are slidably arranged in the mounting groove (101) and telescopic reinforcement components (3) are arranged between adjacent photovoltaic modules (2); And a limiting and reinforcing component (4), which is set along the outer periphery of the mounting groove (101) to limit and reinforce the photovoltaic module (2); The telescopic reinforcement component (3) includes multiple sets of reinforcement frames (304) that are parallel to each other and slidably arranged between adjacent photovoltaic modules (2); telescopic belts (302) are provided between adjacent reinforcement frames (304) to form a accordion telescopic structure.

2. The lightweight BIPV photovoltaic roof integrated structure according to claim 1, characterized in that, The photovoltaic module (2) includes a mounting base (203); a photovoltaic panel (201) is disposed at the center of the mounting base (203), and a mounting flange (202) is disposed around the outer periphery.

3. The lightweight BIPV photovoltaic roof integrated structure according to claim 2, characterized in that, The telescopic reinforcement assembly (3) includes mounting plates (301) located at both ends of the bellows telescopic structure; the mounting plates (301) are connected to the mounting flanges (202) on the corresponding sides; The mounting plate (301) and the mounting flange (202) on the corresponding side are fixedly connected by bolts.

4. The lightweight BIPV photovoltaic roof integrated structure according to claim 3, characterized in that, A slide rail (102) is provided at the bottom of the mounting slot (101); The bottom of the mounting base (203) is provided with a pulley (204) that slides along the slide rail (102); The bottom of the reinforcing frame (304) is provided with a pulley (303) that slides along the slide rail (102).

5. The lightweight BIPV photovoltaic roof integrated structure according to claim 4, characterized in that, The limiting reinforcement component (4) includes a mounting bracket (401) located on the mounting base (1); a horizontally sliding slider (408) is provided on the mounting bracket (401); a limiting reinforcement component is provided at the head end of the slider (408), and a limiting plate (404) is provided at the tail end. The limiting plate (404) and the mounting bracket (401) are fixed together by two bolts.

6. The lightweight BIPV photovoltaic roof integrated structure according to claim 5, characterized in that, The limiting reinforcement includes a limiting frame (402) connected to the slider (408); the front sides of the limiting frame (402) are provided with storage openings, and the front center is provided with a drive box; a limiting reinforcement strip (403) is provided in the storage opening; the limiting reinforcement strip (403) is driven by the drive component in the drive box to slide towards the sides of the storage opening.

7. The lightweight BIPV photovoltaic roof integrated structure according to claim 6, characterized in that, The driving component includes a gear 1 located in the drive box; the gear 1 is driven to rotate by rotating the knob (405); a gear 2 is provided in the drive box; the gear 2 meshes with the gear 1, and at the same time the gear 2 is keyed to the lead screw (409); the lead screw (409) rotates through the drive box and is threadedly engaged with the limit reinforcement bar (403) on the corresponding side, driving it to move horizontally.

8. The lightweight BIPV photovoltaic roof integrated structure according to claim 7, characterized in that, A guide groove is provided at the top of the storage opening; The top of the limiting and reinforcing strip (403) is provided with a sliding strip (407) that cooperates with the guide groove, the bottom is provided with a flipping frame (406), and the outer side is provided with a limiting frame.

9. The lightweight BIPV photovoltaic roof integrated structure according to claim 8, characterized in that, The flipping frame (406) is located in the groove in front of the limiting reinforcement strip (403), and rotates to connect the groove wall of the groove on one side toward the photovoltaic module (2), while the other side is movable.

10. A lightweight BIPV (Building Integrated Photovoltaic) roof construction method, characterized in that, The construction steps for using the lightweight BIPV photovoltaic roof integrated structure as described in claim 9 are as follows: S1. Select an appropriate number of photovoltaic modules (2) and telescopic reinforcement modules (3); the mounting plate (301) and the mounting flange (202) on the corresponding side are fixedly connected by bolts, and the required number of bellows telescopic structures are prepared in advance; S2. Place the accordion telescopic structure into the corresponding mounting slot (101); adjust the length of the accordion telescopic structure by using pulley one (204), pulley two (303) and slide rail (102) to cover the entire mounting slot (101). S3. The limit bracket (402) moves forward onto the mounting protrusion (202), and then the knob (405) is turned. The limit reinforcement strip (403) extends to both sides along the surface of the mounting protrusion (202) and exposes the groove. S4. Flip the flipping frame (406) downwards, and then move the limiting frame (402) back to fit the outer wall of the mounting protrusion (202) of the flipping frame (406). At this time, the flipping frame (406) and the limiting reinforcement strip (403) form an L-shaped structure, which can further lock the mounting protrusion (202). S5. Complete the assembly of all installation units in sequence, and then fix the integrated roof to the roof.

Images