Photovoltaic module with a shield

Abstract

The utility model relates to photovoltaic module technical field especially a photovoltaic module with protection plate, including component laminated spare, component frame and protection plate, protection plate is installed on component frame, the back of protection plate covers component laminated spare, and protection plate has clearance interlayer with component laminated spare, protection plate has the cable groove of recessed on, is used to accommodate the cable on the terminal box of passing out protection plate, protection plate still has the cable opening of intercommunication with cable groove, is used for making the cable on terminal box can pass through cable opening and enter cable groove. The utility model has the advantages of: the protection plate of increasing not only can catch the fragment of broken photovoltaic module, still can play the role of the air of blocking back, delaying the speed of combustion when photovoltaic module burns, and still can block the burning debris of falling and ignite the article below, the protection plate can also reduce the heat transfer of photovoltaic module downward when photovoltaic module normal work, reduces the temperature of lower area.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic module technology, and in particular to a photovoltaic module with a protective plate. Background Technology

[0002] With the increasingly widespread application of photovoltaic (PV) modules, they are gradually being used in carports, parking lots, warehouses, roadside awnings, and other locations. However, in some of these projects, the PV modules are not supported by other roofing structures such as corrugated steel sheets; instead, goods, parked vehicles, or pedestrians are directly beneath them. If a PV module breaks, shards of glass may fall, posing a risk to items and pedestrians below. Furthermore, if the installation location is poor and there is prolonged shade, it may cause hot spots to ignite, and falling flammable fragments could further ignite below, resulting in fire damage. Utility Model Content

[0003] The technical problem this invention aims to solve is that when existing photovoltaic modules are directly used on roofs, damage or fire of the photovoltaic modules can pose a risk to people or objects below.

[0004] The technical solution adopted by this utility model to solve its technical problem is as follows: a photovoltaic module with a protective plate, including a module laminate, a module frame and a protective plate. The module frame surrounds the module laminate, the protective plate is installed on the module frame, and the protective plate covers the back of the module laminate. The junction box on the back of the module laminate is located inside the protective plate. There is a gap between the protective plate and the module laminate. The protective plate has a recessed cable groove for accommodating the cable on the junction box that passes through the protective plate. The protective plate also has a cable opening communicating with the cable groove for allowing the cable on the junction box to pass through the cable opening and enter the cable groove.

[0005] In some embodiments, optionally, the inner side of the back of the component frame has an recessed stepped groove for mounting a protective plate, the four sides of the protective plate being embedded in the stepped groove, and the component frame on the back of the photovoltaic module being higher than or flush with the highest point of the protective plate.

[0006] In some embodiments, optionally, the protective plate has a junction box clearance protrusion corresponding to the junction box.

[0007] In some embodiments, the component laminate is optionally rectangular, having a first directional side and a second directional side that are perpendicular to each other. The arrangement direction of the junction box on the back of the component laminate, the extension direction of the junction box clearance protrusion, and the extension direction of the cable groove are all parallel to the first directional side of the component laminate. Each end of the cable groove has a cable opening, and the two cable openings are located on the two sides of the protective plate, respectively. The junction box clearance protrusion extends through the entire protective plate, and the two ends of the cable groove are located on the inner side of the component frame.

[0008] In some embodiments, optionally, the inner side of the component frame has an inwardly extending mounting edge, the mounting edge being located on the back side of the component laminate and recessed relative to the back side of the component frame to form a stepped groove.

[0009] In some embodiments, the protective plate may be made of a fire-resistant material.

[0010] In some embodiments, the protective plate may be optionally bonded to the component frame with adhesive or fasteners.

[0011] The beneficial effects of this utility model are: the added protective plate can not only catch the fragments of the damaged photovoltaic module, but also block the air behind the photovoltaic module when it is burning, thus slowing down the burning speed. It can also prevent falling debris from igniting items below. When the photovoltaic module is working normally, the protective plate can also reduce the downward heat transfer of the photovoltaic module and lower the temperature of the area below. Attached Figure Description

[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0013] Figure 1 This is a side view structural diagram of the component frame of this utility model;

[0014] Figure 2 This is a three-dimensional structural diagram of the component frame of this utility model;

[0015] Figure 3 This is a three-dimensional structural diagram of the protective plate of this utility model;

[0016] Figure 4 yes Figure 3 A magnified view of part A;

[0017] Figure 5 This is a schematic diagram of the front structure of the photovoltaic module of this utility model;

[0018] Figure 6 This is a schematic diagram of the back structure of a photovoltaic module without a protective plate according to this utility model;

[0019] Figure 7 This is a schematic diagram of the back structure of a photovoltaic module with a protective plate installed according to this utility model;

[0020] Figure 8 yes Figure 7 A magnified view of section B;

[0021] Figure 9 yes Figure 7 CC section view;

[0022] Figure 10 yes Figure 9 A magnified view of a portion at point D;

[0023] In the diagram, 1. Component laminate, 2. Component frame, 2-1. Step groove, 2-2. Mounting edge, 3. Protective plate, 3-1. Cable groove, 3-2. Cable opening, 3-3. Junction box clearance protrusion, 4. Junction box, 5. Cable. Detailed Implementation

[0024] like Figures 1-10 As shown, a photovoltaic module with a protective plate includes a module laminate 1, a module frame 2, and a protective plate 3. The module frame 2 surrounds the module laminate 1, and the protective plate 3 is installed on the module frame 2, covering the back of the module laminate 1. The junction box 4 on the back of the module laminate 1 is located inside the protective plate 3. There is a gap between the protective plate 3 and the module laminate 1. The protective plate 3 has a recessed cable groove 3-1 for accommodating the cable 5 on the junction box 4 that passes through the protective plate 3. The protective plate 3 also has a cable opening 3-2 that communicates with the cable groove 3-1, allowing the cable 5 on the junction box 4 to pass through the cable opening 3-2 and enter the cable groove 3-1.

[0025] The protective plate 3 acts as a barrier, catching fragments of broken photovoltaic modules. An air layer exists between the protective plate 3 and the back of the module laminate 1, providing excellent heat insulation and significantly reducing the temperature beneath the photovoltaic module.

[0026] In existing solutions, a layer of corrugated steel sheet is installed first, and then photovoltaic modules are installed on the corrugated steel sheet, which is costly. However, in this embodiment, a protective plate 3 is integrated on the conventional photovoltaic module. The photovoltaic module with the protective plate 3 can be installed directly without the need to install corrugated steel sheet first, thus avoiding secondary construction.

[0027] When the protective plate 3 is made of fire-resistant material, it can also block the air behind the photovoltaic module and slow down the combustion rate when the module is burning. It can also prevent falling debris from igniting items below. For example, the material of the protective plate 3 can be aluminum, iron, steel, etc.

[0028] The protective plate 3 has a corresponding junction box 4 with a junction box clearance protrusion 3-3.

[0029] The inner side of the back of the module frame 2 has an recessed stepped groove 2-1 for mounting the protective plate 3. The four sides of the protective plate 3 are embedded in the stepped groove 2-1. On the back of the photovoltaic module, the module frame 2 and the highest point of the protective plate 3 are flush. Of course, it is also possible that the module frame 2 is higher than the highest point of the protective plate 3.

[0030] The protective plate 3 is connected to the component frame 2 by adhesive bonding or fasteners.

[0031] When assembling photovoltaic modules, first install junction boxes 4 and module frames 2 on the back and around the module laminate 1. After installation, install protective plates 3 on the module frames 2. The highest point of the protective plates 3 should not exceed the module frames 2. When installing the protective plates 3, first pass the cables 5 on the junction boxes 4 through the cable openings 3-2 out of the protective plates 3. The cables 5 that pass through the protective plates 3 can be placed in the cable grooves 3-1 of the protective plates 3 to prevent the cables 5 and the terminals at the ends of the cables 5 from exceeding the module frames 2, so that the module packaging design and packaging quantity are not affected.

[0032] When the component laminate 1 is rectangular, it has a first direction side and a second direction side that are perpendicular to each other. The arrangement direction of the junction box 4 on the back of the component laminate 1, the extension direction of the junction box clearance protrusion 3-3 and the extension direction of the cable groove 3-1 are all parallel to the first direction side of the component laminate 1. There is a cable opening 3-2 at each end of the cable groove 3-1, and the two cable openings 3-2 are located on the two sides of the protective plate 3 respectively. The junction box clearance protrusion 3-3 penetrates the entire protective plate 3. The two ends of the cable groove 3-1 are located on the inner side of the component frame 2.

[0033] In this embodiment, the photovoltaic module is rectangular, and the module laminate 1 is also rectangular. The back of the module laminate 1 has three junction boxes 4. The arrangement direction of the three junction boxes 4, the extension direction of the junction box clearance protrusion 3-3, and the extension direction of the cable groove 3-1 are all parallel to the short side of the module laminate 1.

[0034] like Figure 1 and 2 As shown, the specific structure of the component frame 2 is as follows: the inner side of the component frame 2 has an inwardly extending mounting edge 2-2, the mounting edge 2-2 is located on the back of the component laminate 1 and is recessed relative to the back of the component frame 2 to form a stepped groove 2-1.

Claims

1. A photovoltaic module with a protective plate, characterized in that: The component includes a component laminate (1), a component frame (2), and a protective plate (3). The component frame (2) surrounds the component laminate (1). The protective plate (3) is installed on the component frame (2) and covers the back of the component laminate (1). The junction box (4) on the back of the component laminate (1) is located inside the protective plate (3). There is a gap between the protective plate (3) and the component laminate (1). The protective plate (3) has a recessed cable groove (3-1) for accommodating the cable (5) on the junction box (4) that passes through the protective plate (3). The protective plate (3) also has a cable opening (3-2) that communicates with the cable groove (3-1) so that the cable (5) on the junction box (4) can pass through the cable opening (3-2) and enter the cable groove (3-1).

2. The photovoltaic module with a protective plate according to claim 1, characterized in that: The inner side of the back of the component frame (2) has an recessed stepped groove (2-1) for installing the protective plate (3). The four sides of the protective plate (3) are embedded in the stepped groove (2-1). On the back of the photovoltaic module, the component frame (2) is higher than or flush with the highest point of the protective plate (3).

3. The photovoltaic module with a protective plate according to claim 1 or 2, characterized in that: The protective plate (3) has a junction box clearance protrusion (3-3) corresponding to the junction box (4).

4. The photovoltaic module with a protective plate according to claim 3, characterized in that: The component laminate (1) is rectangular and has a first direction side and a second direction side that are perpendicular to each other. The arrangement direction of the junction box (4) on the back of the component laminate (1), the extension direction of the junction box clearance protrusion (3-3) and the extension direction of the cable groove (3-1) are all parallel to the first direction side of the component laminate (1). There is a cable opening (3-2) at each end of the cable groove (3-1), and the two cable openings (3-2) are located on the two sides of the protective plate (3). The junction box clearance protrusion (3-3) penetrates the entire protective plate (3). The two ends of the cable groove (3-1) are located on the inner side of the component frame (2).

5. The photovoltaic module with a protective plate according to claim 2, characterized in that: The inner side of the component frame (2) has an inwardly extending mounting edge (2-2), which is located on the back of the component laminate (1) and recessed relative to the back of the component frame (2) to form a stepped groove (2-1).

6. The photovoltaic module with a protective plate according to claim 1, characterized in that: The protective plate (3) is made of refractory material.

7. The photovoltaic module with a protective plate according to claim 1, characterized in that: The protective plate (3) is connected to the component frame (2) by adhesive bonding or by fasteners.

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