Photovoltaic module deformation monitoring alarm device

Abstract

The utility model discloses a photovoltaic module deformation monitoring alarm device. Under the influence of strong wind weather, the assembly can repeatedly collide with the purline, so that the packaging glass and the assembly are easy to damage, and no device for monitoring the deformation of the photovoltaic assembly exists at present. The device comprises a photovoltaic support and a photovoltaic panel, a purline is fixed on the photovoltaic support, the photovoltaic panel is fixed on the purline through a pressing block, and an alarm device is fixed on the purline. The alarm device comprises a box body, the box body is slidably connected with a plurality of groups of pressing rod assemblies, the tops of the pressing rod assemblies are in contact with the bottom of the photovoltaic panel, the bottom of each group of pressing rod assembly is fixedly provided with a movable copper sheet, and the box body is internally and fixedly provided with a fixed copper bar. The device is used for monitoring and alarming the deformation of the photovoltaic module.

Description

Technical Field

[0001] This utility model relates to a photovoltaic module deformation monitoring and alarm device. Background Technology

[0002] Currently, the frameless, large-size photovoltaic modules used in large-scale centralized photovoltaic power plants are all encapsulated in glass. Installation relies solely on edge clamps for fixation. When exposed to sunlight, the solar cells heat up, causing the encapsulating glass to expand. Due to the installation angle and gravity, the middle of the photovoltaic module may bend, eventually contacting the purlins of the support structure. In windy conditions, repeated collisions between the module and the purlins can easily damage the encapsulating glass and the module itself. Currently, there is no device to monitor the deformation of photovoltaic modules. Utility Model Content

[0003] The purpose of this invention is to provide a photovoltaic module deformation monitoring and alarm device to solve the defects mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides a photovoltaic module deformation monitoring and alarm device, which comprises: a photovoltaic support and a photovoltaic panel, wherein a purlin is fixed on the photovoltaic support, the photovoltaic panel is fixed on the purlin by a pressure block, and an alarm device is fixed on the purlin;

[0005] The alarm device includes a housing, on which multiple sets of pressure rod assemblies are slidably connected. The top of each pressure rod assembly contacts the bottom of the photovoltaic panel. A movable copper sheet is fixed to the bottom of each pressure rod assembly. A fixed copper busbar is fixed inside the housing.

[0006] The photovoltaic module deformation monitoring and alarm device includes a pressure rod assembly comprising an H-shaped support rod, a pressure plate fixed to the bottom of the H-shaped support rod, a movable copper sheet fixed to the bottom of the pressure plate, and a spring fitted on each vertical rod of the H-shaped support rod.

[0007] The photovoltaic module deformation monitoring and alarm device includes an upper box and a lower box, which are fixed together by bolts.

[0008] The aforementioned photovoltaic module deformation monitoring and alarm device includes a control box fixed to the side of the lower housing, and a controller and power supply fixed inside the control box.

[0009] The photovoltaic module deformation monitoring and alarm device includes an H-shaped support rod comprising two parallel vertical rods connected by a horizontal rod. A circular plate is fixed to the top of each vertical rod, and an adhesive pad is adhered to the circular plate.

[0010] The photovoltaic module deformation monitoring and alarm device has four ribs fixed on the top of the housing, with each pair of ribs forming a group, and each rib having an installation hole. Beneficial effects

[0011] 1. This utility model has an alarm device installed on the purlin. The top of the H-shaped support rod of the alarm device contacts the bottom of the photovoltaic panel. When the photovoltaic panel bends and deforms, it will press against the H-shaped support rod and slide. When the sliding reaches the contact between the movable copper piece and the fixed copper busbar, the switch formed will close and the signal will be transmitted to the controller. The signal will be transmitted to the control room through the wireless transceiver module on the controller to issue an alarm to remind the staff.

[0012] 2. Each vertical member of the H-shaped support rod of this utility model has a support sleeve, which can limit the movement of the H-shaped support rod. In this way, the H-shaped support rod can play a supporting role for the photovoltaic panel and prevent the photovoltaic panel from bending and contacting the purlin. Attached Figure Description

[0013] Figure 1 This is a perspective view of the present utility model;

[0014] Figure 2 This is the front view of the present invention;

[0015] Figure 3 This is a side view of the present invention;

[0016] Figure 4 This is a schematic diagram of the structure of this utility model;

[0017] Figure 5 A 3D view of the alarm device;

[0018] Figure 6 This is a schematic diagram of the internal structure of the alarm device;

[0019] Figure 7 for Figure 6 Enlarged view of part A;

[0020] The diagram is labeled as follows: 1. Photovoltaic bracket; 2. Alarm device; 3. Purlin; 4. Pressure block; 5. Photovoltaic panel; 2.1. Control box; 2.2. Rib plate; 2.3. Upper box; 2.4. Lower box; 2.5. Pressure rod assembly; 2.6. Connecting wire; 2.7. Support sleeve; 2.8. Mounting hole; 2.5.1. H-type bracket; 2.5.2. Pressure plate; 2.5.3. Movable copper sheet; 2.5.4. Spring; 2.5.5. Rubber pad; 2.5.6. Fixed copper busbar; 2.5.7. Controller; 2.5.1.1. Circular plate; 2.5.1.2. Vertical rod; 2.5.1.3. Horizontal rod. Detailed Implementation

[0021] Please see Figure 1-7 This utility model provides a photovoltaic module deformation monitoring and alarm device, which includes: a photovoltaic support 1 and a photovoltaic panel 5. A purlin 3 is fixed on the photovoltaic support, and the photovoltaic panel 5 is fixed on the purlin by a pressure block 4. An alarm device 2 is fixed on the purlin.

[0022] The alarm device includes a housing, on which multiple sets of pressure rod assemblies 2.5 are slidably connected. The top of each pressure rod assembly contacts the bottom of the photovoltaic panel. A movable copper sheet 2.5.3 is fixed at the bottom of each pressure rod assembly. A fixed copper busbar 2.5.6 is fixed inside the housing.

[0023] The top of the box is fixed with four ribs 2.2, with each pair of ribs forming a group. Each rib has a mounting hole 2.8. The distance between the two ribs in a group is equal to the width of the purlin. The connecting bolts pass through the mounting holes of the ribs and the mounting holes of the purlins to fix the device.

[0024] The enclosure includes an upper enclosure 2.3 and a lower enclosure 2.4, which are fixed together by bolts. The upper and lower enclosures facilitate maintenance and disassembly.

[0025] The lower housing has multiple ribs fixed inside, and the fixed copper busbars are fixed to the ribs with bolts. The fixed copper busbars are located inside the lower housing, while the movable copper plates are located inside the upper housing. Thus, during installation, the upper and lower housings only need to be fixed with bolts. During maintenance and disassembly, the upper and lower housings can be disassembled to separate the fixed and movable copper plates.

[0026] A control box 2.1 is fixed to the side of the lower housing, and a controller 2.5.7 and a power supply (not shown) are fixed inside the control box.

[0027] After the device is fixed, the top of each pressure rod assembly contacts the bottom of the photovoltaic panel. When the middle of the photovoltaic panel bends and deforms, it will press the pressure rod assembly to slide. After sliding, the distance between the movable copper piece at the bottom of the pressure rod assembly and the fixed copper busbar decreases. When the deformation continues, since the movable copper piece and the fixed copper busbar form a normally open switch, this normally open switch is turned on after the pressure rod assembly moves to the point where the movable copper piece contacts the fixed copper busbar. After being turned on, the signal is transmitted to the controller. The controller is a 12V voltage triggered wireless sound and light alarm, which is powered by a power supply. The alarm transmits the signal to the control room through a wireless module to issue an alarm to remind the staff. The working principle and circuit connection of the wireless sound and light alarm are existing technologies. This device does not improve on them, but only applies them here to realize wireless alarm. There are three movable copper pieces in the figure. The three movable copper pieces are connected in sequence by connecting wire 2.6. The movable copper piece at the first end is connected to one terminal of the controller's switch input through the connecting wire, and the fixed copper busbar is connected to the other terminal of the controller's switch input.

[0028] The photovoltaic module deformation monitoring and alarm device includes a pressure rod assembly comprising an H-shaped support rod 2.5.1, a pressure plate 2.5.2 fixed to the bottom of the H-shaped support rod, a movable copper sheet fixed to the bottom of the pressure plate, and a spring 2.5.4 fitted on each vertical rod of the H-shaped support rod.

[0029] The H-shaped support rod includes two parallel vertical rods 2.5.1.2, which are connected by a crossbar 2.5.1.3. Each vertical rod has a circular plate 2.5.1.1 fixed to its top, and a rubber pad 2.5.5 is glued to the circular plate.

[0030] By using rubber pads, the photovoltaic panels are protected from damage when in contact with the H-shaped support rods.

[0031] On the upper housing, each vertical rod of each H-shaped support is fixed with a support sleeve 2.7. This support sleeve limits the sliding amount of the H-shaped support. The maximum sliding amount is when the circular plate contacts the support sleeve. This can protect the normally open switch formed by the moving copper sheet and the fixed copper busbar, preventing damage caused by excessive movement. It also protects the photovoltaic panel, preventing damage caused by repeated collisions with the purlin if the deformation is too large and the photovoltaic panel does not come into contact with the purlin.

[0032] Multiple pressure bar assemblies are simultaneously installed, distributed in the middle of the photovoltaic panel. This allows different pressure bar assemblies to achieve different sliding amounts when different parts of the photovoltaic panel experience varying degrees of deformation. Each pressure bar assembly has a fixed movable copper plate at its bottom; there are three movable copper plates in total, connected sequentially by connecting wire 2.6. The first movable copper plate is connected to one terminal of the controller's switch input via a connecting wire, and the fixed copper busbar is connected to the other terminal of the controller's switch input. This allows each pressure bar assembly to achieve different sliding amounts based on the deformation at different locations of the photovoltaic panel. When the movable copper plate of one pressure bar assembly contacts the fixed copper busbar, the normally open switch closes because the three movable copper plates are connected sequentially by connecting wire 2.6, the first movable copper plate is connected to one terminal of the controller's switch input via a connecting wire, and the fixed copper busbar is connected to the other terminal of the controller's switch input. This transmits the switch closure signal to the controller, triggering an alarm.

Claims

1. A photovoltaic module deformation monitoring and alarm device, comprising: A photovoltaic bracket and a photovoltaic panel, wherein a purlin is fixed on the photovoltaic bracket and a photovoltaic panel is fixed on the purlin by a clamping block, characterized in that: an alarm device is fixed on the purlin; The alarm device includes a housing, on which multiple sets of pressure rod assemblies are slidably connected. The top of each pressure rod assembly contacts the bottom of the photovoltaic panel. A movable copper sheet is fixed to the bottom of each pressure rod assembly. A fixed copper busbar is fixed inside the housing.

2. The photovoltaic module deformation monitoring and alarm device according to claim 1, characterized in that: The pressure rod assembly includes an H-shaped support rod, a pressure plate is fixed to the bottom of the H-shaped support rod, a movable copper sheet is fixed to the bottom of the pressure plate, and a spring is fitted on each vertical rod of the H-shaped support rod.

3. The photovoltaic module deformation monitoring and alarm device according to claim 2, characterized in that: The enclosure includes an upper enclosure and a lower enclosure, which are fixed together by bolts.

4. The photovoltaic module deformation monitoring and alarm device according to claim 3, characterized in that: A control box is fixed to the side of the lower housing, and a controller and a power supply are fixed inside the control box.

5. A photovoltaic module deformation monitoring and alarm device according to claim 4, characterized in that: The H-shaped support rod includes two parallel vertical rods connected by a crossbar. A circular plate is fixed to the top of each vertical rod, and a rubber pad is adhered to the circular plate.

6. A photovoltaic module deformation monitoring and alarm device according to claim 5, characterized in that: The top of the box is fixed with four ribs, with two ribs forming a group, and each rib has a mounting hole.

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