JP2022101849A - Protective structure for solar panel - Google Patents

Abstract

To provide a protective structure for preventing damage to a solar panel 1 due to a flying object colliding with the solar panel installed outdoors under high winds.SOLUTION: A protective structure includes: a protective member 3 in which a protective surface part 32 is formed by installing fine wires in a lattice pattern inside a frame 31 having a size corresponding to a solar panel 1 to be protected; and a mounting member 4 connecting with the frame 31 and a support member 21 or an outer frame 11 of the solar panel, or both when the solar panel is installed or mounted. Protective surface parts 32 are arranged and fixed at a suitable interval above the solar panel 1 to be protected.SELECTED DRAWING: Figure 1

Description

The present invention relates to a protective structure for a solar panel.

As is well known, the solar panel is sealed by sandwiching an aggregate of photovoltaic power generation cells with a sealing layer, a back sheet and a surface protection plate are arranged on the front and back surfaces, and the panel is integrated with a frame (Patent Document 1). ). The above-mentioned solar pal is to install an appropriate number on the roof or on the ground to generate a predetermined amount of solar power. The frame portion is fixed to the support member while being placed on the member (Patent Documents 2 and 3).

JP-A-2015-138891. Japanese Unexamined Patent Publication No. 2015-25309. Registered Utility Model No. 3197136.

Solar panels are installed on the roof or on the ground surface, but the surface protection is realized by the surface protection plate or protective sheet built into the solar panel itself, and the surface protection plate is a glass plate or transparent resin. It consists of a board, and the protective sheet is made of a transparent resin sheet material. In particular, when a surface protection plate is used, its strength and thickness are limited in consideration of the ease of handling and economic efficiency of the solar panel.

By the way, the solar panel installed outdoors has sufficient durability against normal weather phenomena, but when a flying object collides with it in a strong wind, the surface protection plate is not sufficient and the solar panel is damaged. Resulting in. Therefore, the present invention proposes a new protective structure that protects the solar panel without changing the existing or existing solar panel.

The protective structure of the solar panel according to the present invention includes a protective member in which thin lines are stretched in a grid pattern inside a frame portion having a size corresponding to the solar panel to be protected to form a protective surface portion, and the frame. The protective surface portion is provided above the solar panel to be protected at appropriate intervals, with a support member for installing the solar panel and the solar panel, an outer frame of the solar panel, or a mounting member for connecting both. It is characterized by being fixed.

Therefore, it is possible to suppress the decrease in the amount of sunlight irradiation to the solar panel as much as possible and prevent the scattered matter from colliding with the surface of the solar panel. When a protective member such as a transparent resin plate or a reinforced glass plate is used, the amount of sunlight transmitted is reduced by 7 to 10%, and the transmittance of sunlight is further reduced due to surface contamination and aging. In addition, the transparent resin plate is easily deformed when it is affected by heat from the temperature and sunlight, and if it is installed with a gap between it and the solar panel to eliminate the effect of heat, it will float under the influence of the wind. Although force acts, the above problem can be solved by adopting a net-like protective member.

The configuration of the present invention is as described above, it can be formed lightweight, it is hardly affected by the wind after installation, and the surface of the solar panel does not cause a problem in irradiating the solar panel with sunlight due to aging. Can be protected.

Explanatory drawing of 1st Embodiment of this invention. Explanatory drawing of the second embodiment (attached state to a solar panel). The figure (overall view of the photovoltaic power generation device).

Next, an embodiment of the present invention will be described. FIG. 1 shows a first embodiment, and the first embodiment shows an example in which a solar panel 1 is applied to an existing photovoltaic power generation device installed on a folded roof 2.

To install the above solar panel 1 on the folded roof 2, a connecting metal fitting 22 for sandwiching the outer frame 11 of the solar panel 1 is attached to a support member 21 provided in a beam shape on the roof 2 to connect the solar panel 1. The solar panel 1 is held by the metal fitting 22.

The protective structure for the solar panel 1 is formed by the protective member 3 and the mounting member 4. The protective member 3 has a size corresponding to that of the solar panel 1 and is composed of a frame portion 31 and a protective surface portion 32.

The frame portion 31 is formed in a frame shape by any material such as aluminum, resin, stainless steel, and rust-preventive iron having sufficient strength to cope with the tension of the thin wire forming the protective surface portion 32 described later. .. The means for forming the frame shape is arbitrary, but in the illustrated example, the corner portion of the frame portion 31 is superposed on the frame side metal 33 having a hook shape and a U-shaped cross section, and the L-shaped connecting metal 34 is overlapped and connected. The frame side rod 33 is provided with a communication hole 35 for thin metal wires forming the protective surface portion 32.

The protective surface portion 32 is formed by folding a thin metal wire (preferably φ0.27 to 1 mm stainless steel fine wire, or other resin wire such as a piano wire or nylon wire) at the communication hole 35, and preferably forming a grid pattern at intervals of 3 to 6 cm. It is stretched and formed on the net surface. It should be noted that the diameter and the grid spacing of the thin metal wires may be as long as they do not reduce the power generation efficiency as much as possible when irradiated with sunlight and have sufficient protective strength.

The mounting member 4 is erected by connecting to a support member 21 fixed on the roof, and connects the support column member 41 connected to the frame side rod 33 and the outer frame 11 of the solar panel 1 and the frame side rod 33. It is composed of a connecting member 42, and the protective member 3 is arranged and fixed at a position 2 to 50 cm above the solar panel 1 by using the mounting member 4. In particular, at the connection position of the support column member 41 and the connecting member 42 with the frame side rod 33, since the thin metal wire is stretched with a predetermined force on the protective surface portion 32, the frame side rod 33 tends to bend toward the center. , Select a well-balanced position in consideration of the above-mentioned deflection.

The mounting member 4 is a support member for the solar panel A corresponding to the roof structure used when installing the solar panel on various roofs such as a flat roof and a tiled roof as well as the folded roof 2. In addition to the beam member, a member having a connecting structure that can be connected to a bolt projecting on the roof, a gantry) may be adopted.

Next, the second embodiment shown in FIGS. 2 and 3 will be described. The solar power generation device shown in the second embodiment is a device that can generate power by generating solar power at an arbitrary place in an emergency such as a disaster, and is equipped with a storage battery 6 and a power supply control circuit on the trolley 5. The support 7 is erected on the trolley 5, and the solar panel 1 is arranged and mounted on the upper portion like an umbrella.

For example, the support column 7 is provided with two upper and lower connecting points (using connecting bolts 71), a mounting portion 8 fixed to the outer frame 11 of the panel is provided on the back surface of the solar panel 1, and the support column 8 is provided with the mounting portion 8. A connecting plate portion 83 having a bolt shaft hole 81 and a bolt elongated hole 82 formed at the connecting portion of the bolt 7 is provided so that the solar panel 1 can be connected and fixed to the support column at a desired angle.

For the protection of the solar panel 1, the same protective member 3 and mounting member 4a as in the first embodiment described above are used, and in particular, the mounting member 4a has a grid shape or a cross shape on the mounting portion 8 on the back surface of the panel. It is composed of a horizontal rod portion 43 that is arranged and connected and fixed, and a vertical rod portion 44 that connects the horizontal rod portion 43 and the frame side rod 33 of the protective member 3, and includes a solar panel 1, a mounting portion 8, and a protective member. The mounting member 4a is integrated as shown in FIG. 2, and is connected and fixed to the upper end of the support column 7 to form a photovoltaic power generation device having a protective structure for the solar panel 1.

1 Solar panel 11 Outer frame 2 Folded roof 21 Support member 22 Connecting metal fittings 3 Protective member 31 Frame part 32 Protective surface part 33 Frame side 杆 34 Connecting 杆 35 Communication holes 4, 4a Mounting member 41 Strut member 42 Connecting member 43 Horizontal 杆Part 44 Vertical rod part 5 Bogie 6 Storage battery 7 Strut 71 Connecting bolt 8 Mounting part 81 Bolt shaft hole 82 Bolt long hole 83 Connecting plate part

Claims (3)

When installing or mounting a protective member in which thin lines are stretched in a grid pattern inside a frame portion of a size corresponding to the solar panel to be protected to form a protective surface portion, and the frame portion and the solar panel are installed or attached. A support member, an outer frame portion of a solar panel, or a mounting member connected to both of them is provided, and the protective surface portion is arranged and fixed at appropriate intervals above the solar panel to be protected. Panel protection structure. The protective structure for a solar panel according to claim 1, wherein the thin wire is a metal thin wire having a diameter of 0.25 to 2 mm and a grid spacing of 1 to 10 cm. The protective structure for a solar panel according to claim 2, wherein the protective surface portion is arranged 2 to 50 cm above the solar panel.

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