Supporting structure of light flexible photovoltaic module on color steel tile

Abstract

The utility model belongs to the field of solar photovoltaics, and particularly relates to a supporting structure of a light flexible photovoltaic module on a color steel tile, which comprises supporting battens and supporting cushion blocks, the supporting battens which are arranged in parallel at intervals are laid on the surface where the crests of corrugations of the color steel tile are located, the length direction of the supporting battens and the trend of the corrugations are arranged in a crossed mode, and the supporting cushion blocks are arranged on the supporting battens. And a supporting cushion block is arranged between the tile surface of the color steel tile between the corrugations and the supporting batten. According to the scheme, in combination with the rugged wavy structure characteristic of the surface of the color steel tile roof, the photovoltaic module is supported on the color steel tile through the supporting battens, and the supporting cushion blocks are arranged, so that stress points are increased, the supporting battens and the corrugated trend are arranged in a crossed mode, the weight of the photovoltaic module is more easily transmitted to all positions of the color steel tile in a balanced mode, pressure is reasonably distributed, and the service life of the color steel tile roof is prolonged. Deformation of the color steel tile is avoided, the stability of the photovoltaic module is improved, the structure is simple, and the cost is low.

Description

Technical Field

[0001] The utility model belongs to the field of solar photovoltaics, and in particular relates to a supporting structure of a lightweight flexible photovoltaic component on a color steel tile. Background Art

[0002] At present, more and more solar photovoltaic power stations are built on the roofs of existing factory buildings with reinforced concrete, color-coated steel and other structures. Due to the limited load-bearing capacity of the roof (for example, the addition of photovoltaic system loads was not considered when the roof was originally designed, so there is not much design margin), some roofs cannot meet the installation of conventional photovoltaic modules with an additional load of ≥15KG / ㎡. Therefore, lightweight flexible photovoltaic modules are needed to reduce the additional load on the roof to ≤5KG / ㎡.

[0003] Since lightweight modules have no frame, their installation method is different from that of conventional modules. According to the product installation plan provided by the photovoltaic module manufacturer, the photovoltaic modules need to be fixed by gluing. However, for color steel roofs, the surface of the color steel tiles is an overall wavy design. If structural adhesive is used for gluing, the curvature of the color steel tiles at the wave crest position, i.e. the corrugation, is too large, which can easily cause damage to the photovoltaic modules.

[0004] The Chinese patent "Lightweight Flexible Photovoltaic Module Easy to Install" (patent number CN 216437107U) discloses a method for installing a flexible photovoltaic module, and the scheme is roughly as follows: after the upper surface of the color steel tile is painted with a primer and cured, a bottom adhesive material is laid on the upper surface, and then the adhesive carrier is bonded thereto and cured, an upper adhesive material is laid on the upper surface of the adhesive carrier, and then the lightweight flexible photovoltaic module is bonded thereto. In order to prevent the adhesive material from failing to bond, a plug-in device is also provided between the color steel tile and the flexible photovoltaic module. Although this scheme solves the problem that the above-mentioned lightweight flexible photovoltaic module is damaged due to excessive curvature at the corrugation of the color steel tile, the supporting part of the photovoltaic module is the corrugation and the adhesive carrier parallel to the corrugation, that is, the crest and trough of the wavy surface of the color steel tile, which leads to an unbalanced stress state on the surface of the color steel tile, and the trough position is easily concave, and then the stress at the crest position increases, and this situation becomes more and more serious, resulting in complete deformation or even damage of the color steel tile roof. Although this scheme has designed a plug-in device in an attempt to compensate for the failure of structural adhesive bonding, the plug-in device itself takes up a large space, which not only interferes with the corrugations of the color steel tiles, but also occupies the trough position for the arrangement of the supporting bonding carrier plate, causing the photovoltaic modules and the color steel tiles to be subjected to more unbalanced forces, which is really not worth the loss.

[0005] Therefore, how to install lightweight and flexible photovoltaic modules on the roof of colored steel tiles without damaging the photovoltaic modules and balancing the force of the colored steel tiles is an issue that needs to be solved urgently. Utility Model Content

[0006] The purpose of the utility model is to provide a support structure for a lightweight and flexible photovoltaic module on a color steel tile, which can, on the one hand, more reasonably distribute the load of the photovoltaic module to various parts of the color steel tile, and on the other hand, provide strong support for the photovoltaic module, thereby extending the service life of the photovoltaic module.

[0007] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a supporting structure of a lightweight flexible photovoltaic module on a color steel tile, including supporting strips and supporting pads, the supporting strips arranged in parallel and at intervals are laid on the surface where the peaks of the corrugations of the color steel tile are located, and the length direction of the supporting strips is arranged crosswise with the direction of the corrugations, and supporting pads are arranged between the tile surface of the color steel tile between the corrugations and the supporting strips.

[0008] The above scheme, combined with the uneven wavy structural characteristics of the color steel tile roof surface, uses support strips to place the photovoltaic modules on the color steel tiles, and sets support pads. This not only increases the stress points, but also crosses the support strips with the corrugated direction, making it easier to transfer the weight of the photovoltaic modules to various parts of the color steel tiles in a balanced manner, reasonably distribute the pressure, avoid deformation of the color steel tiles, and improve the stability of the photovoltaic modules. It has a simple structure and low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a schematic diagram of the positional relationship between the support structure and the color steel tile of the utility model;

[0010] Figure 2 It is a schematic diagram of the support structure of the utility model after installation. DETAILED DESCRIPTION

[0011] The technical solution of the utility model is further described in detail below in conjunction with the accompanying drawings.

[0012] A support structure for a lightweight flexible photovoltaic module on a color steel tile, characterized in that it includes support strips 10 and support pads 20, wherein the support strips 10 arranged in parallel and at intervals are laid on the surface where the peaks of the corrugations B1 of the color steel tile B are located, and the length direction of the support strips 10 is arranged crosswise with the direction of the corrugations B1, and the support pads 20 are arranged between the tile surface of the color steel tile B between the corrugations B1 and the support strips 10.

[0013] As a preferred solution, the length direction of the supporting strip 10 is perpendicular to the direction of the corrugation B1.

[0014] In actual operation, according to the designed installation position, first use structural adhesive to bond the lower surface of the support pad 20 to the corresponding position. After the structural adhesive is solidified, apply glue to the upper surface of the support pad 20, and then quickly fit the support strip 10 with the corrugated B1 and the support pad 20. After solidification, apply glue to the upper surface of the support strip 10, and quickly fit the back of the photovoltaic module A to the support strip 10, and wait for the structural adhesive to be completely solidified. The installation process is simple and easy to operate, low cost, and the color steel tile is balanced in force, and the photovoltaic module is installed stably and reliably.

[0015] The back of the flexible photovoltaic module A is placed on the support strip 10 and the support strip 10 is on the bottom surface of the flexible photovoltaic module A. The installation structure in the prior art needs to be grounded, while in this solution, the lightweight, insulating support strip 10 and the support pad 20 are completely covered under the flexible photovoltaic module A, not exposed, and do not need to be grounded, saving costs. Specifically, the support strip 10 is a 30mm wide and 1.5mm thick aluminum alloy or galvanized magnesium aluminum long strip; the support pad 20 is a 50mm long, 40mm wide, 60mm high, and 1.5mm thick aluminum alloy or galvanized magnesium aluminum square tube.

[0016] The supporting strips 10 are arranged in five strips on the back of the photovoltaic module A, and four supporting pads 20 are arranged at intervals under each supporting strip 10. Adjacent photovoltaic modules A are arranged at intervals, that is, gaps are left to avoid friction damage after slight deformation.

[0017] In view of the fact that there are only two manufacturers of lightweight flexible photovoltaic modules in China, and the specifications of both are 1840mm*1040mm, the installation solutions of flexible photovoltaic modules in the existing technology are also designed for this specification, and this solution is no exception. As for the color steel tile roof, the most common color steel tile roof is divided into two types. One is flat top, that is, the color steel tile has no obvious corrugation, or the corrugation part is wider. In this case, the full glue pasting solution provided by the manufacturer can be directly adopted, and there is almost no situation where uneven force or damage to the drum assembly affects the life; the other is a wave roof (vertical lock edge color steel tile roof), this kind of color steel tile roof has obvious crests, and the direct distance between two adjacent crests (corrugations) is about 60mm. This solution is designed for this kind of color steel tile roof.

[0018] Example

[0019] Material selection: Photovoltaic module A: 370Wp lightweight photovoltaic module is selected, the size of a single module is 1840*1040mm, and the weight is 5.7kg.

[0020] Color steel tile B: upright lock-edge color steel tile roof, the distance between the two wave peaks is 500mm, and the height difference between the wave peak and the wave trough is about 60mm.

[0021] Structural adhesive: Tianshan 1527.

[0022] Support strip 10: 30*1.5mm galvanized magnesium aluminum strip.

[0023] Support pad 20: 50*40*60*1.5 galvanized magnesium aluminum square tube.

[0024] Design and installation plan:

[0025] Five support strips 10 are arranged in parallel and at intervals, and four support pads 20 are arranged under each support strip 10 .

[0026] Installation steps:

[0027] 1. Clean the color steel tile roof, aluminum alloy strips, aluminum alloy square tubes, and the back of photovoltaic modules;

[0028] 2. Use full glue bonding to install the aluminum alloy square tube at the trough position of the color steel tile;

[0029] 3. Glue one side of the aluminum alloy strip to the upper part of the aluminum alloy square tube with glue. After curing, perform a pull-out test on each supporting point of the aluminum alloy strip. The single-point pulling force is greater than 30KG.

[0030] 4. Apply structural adhesive on the upper surface of the aluminum alloy strip, then bond the back of the photovoltaic module A to the upper surface of the aluminum alloy strip, and use a roller to lightly press the gluing position to ensure that the structural adhesive and the module are in good contact with the aluminum alloy strip.

[0031] 5. Detection of additional load: Additional load of galvanized magnesium aluminum support structure: 275g / m 2 , the additional uniform load of the rooftop photovoltaic system is ≤5KG / m 2 .

[0032] 6. Installation of multiple photovoltaic modules A: The distance between the galvanized magnesium aluminum strip and the edge of the photovoltaic module A should not exceed 50mm, the distance between adjacent photovoltaic modules A in the horizontal direction should be 3-10mm, and the distance between adjacent photovoltaic modules A in the vertical direction should be about 10-20mm.

[0033] The technical solution of the utility model is adopted to install lightweight flexible photovoltaic modules, multiple stress points are reasonably arranged on the color steel tile, and the weight of the photovoltaic modules is distributed to the entire color steel tile roof, avoiding the situation where local uneven stress causes deformation of the color steel tile roof or damage to the photovoltaic modules, thereby improving the stability and reliability of the installation of the photovoltaic modules.

Claims

1. A support structure of a lightweight flexible photovoltaic module on a color steel tile, characterized in that: The invention comprises support strips (10) and support pads (20), wherein the support strips (10) are arranged in parallel and at intervals and laid on the surface where the peaks of the corrugations (B1) of the color steel tiles (B) are located, and the length direction of the support strips (10) is arranged to cross the direction of the corrugations (B1), and the support pads (20) are arranged between the tile surface of the color steel tiles (B) between the corrugations (B1) and the support strips (10).

2. The supporting structure of the lightweight flexible photovoltaic assembly on the color steel tile according to claim 1 is characterized in that: The length direction of the supporting strip (10) is perpendicular to the direction of the corrugation (B1).

3. The supporting structure of the lightweight flexible photovoltaic assembly on the color steel tile according to claim 1 is characterized in that: The back side of the flexible photovoltaic component (A) is placed on the supporting strip (10), and the supporting strip (10) is located on the bottom surface of the flexible photovoltaic component (A).

4. The supporting structure of the lightweight flexible photovoltaic assembly on the color steel tile according to claim 1 is characterized in that: The supporting strip plate (10) is an aluminum alloy or zinc-coated magnesium-aluminum long strip plate with a width of 30 mm and a thickness of 1.5 mm.

5. The supporting structure of the lightweight flexible photovoltaic assembly on the color steel tile according to claim 1 is characterized in that: The support pad (20) is an aluminum alloy or zinc-plated magnesium-aluminum square tube with a length of 50 mm, a width of 40 mm, a height of 60 mm, and a wall thickness of 1.5 mm.

6. The supporting structure of the lightweight flexible photovoltaic assembly on the color steel tile according to claim 1 is characterized in that: Five support strips (10) are arranged on the back of the photovoltaic module (A), and four support pads (20) are arranged at intervals under each support strip (10).

7. The supporting structure of the lightweight flexible photovoltaic assembly on the color steel tile according to claim 1 is characterized by: Adjacent photovoltaic modules (A) are arranged at intervals.

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