How to repair a solar panel device

Abstract

To provide a stacking method that enables effective use of a mount in a solar panel device. [Solution] In a solar panel device comprising a frame 11 and legs 12 fixed to the frame 11, a stand 10 to be installed on an installation surface, and a first solar panel 20 mounted on the stand 10, a second solar panel 30 is mounted on the first solar panel 20 and fixed to the first solar panel 20 or the stand 10 with a fixture 31 or attached to the first solar panel 20 with an adhesive, a current limiting element 22 for preventing backflow is connected to the output line 21 from the solar panel with a small generated voltage, and the solar panels are stacked so as to prevent backflow from the solar panel with a large generated voltage to the small solar panel, and the generated power is extracted from both solar panels.

Description

[Technical field]

[0001] The present invention relates to a panel stacking method for a solar panel device. [Background technology]

[0002] Recently, interest in environmental issues has increased, and clean, circulating energy sources have been attracting attention. For example, solar panel devices that generate electrical energy from sunlight are being installed in large numbers in both businesses and homes.

[0003] This solar panel device is composed of a solar panel module mounted on a mounting base, but after a long time has passed since installation and if it is exposed to harsh environments, the performance of the solar panel module may deteriorate or even break down, making it necessary to replace it with a new solar panel device and discard the deteriorated and broken solar panel device.

[0004] It is desirable to reuse resources as much as possible from discarded solar panel equipment, and for example, it has been proposed to crush the glass and elements of the solar panel module, heat it to soften the filler, and separate and recover the glass and elements (Patent Document 1, Patent Document 2).

[0005] In addition, a repair method has been proposed in which, when a failure occurs in a cell array of a solar panel, a replacement cell array is adhered on top of the failed cell array and electrically connected to the adjacent cell array (Patent Document 3). [Prior art documents] [Patent documents]

[0006] [Patent Document 1] JP 2011-173099 A [Patent Document 2] JP 2019-6839 A [Patent Document 3] JP 2003-158286 A Summary of the Invention [Problem to be solved by the invention]

[0007] Incidentally, when a solar panel device is to be disposed of, the mounting base must be disposed of even though it is hardly damaged at all.

[0008] In view of the above, an object of the present invention is to provide a panel stacking method for a solar panel device, in which a second solar panel is stacked on top of a first solar panel device, allowing the stand to be used effectively until both solar panels are broken. [Means for solving the problem]

[0009] Therefore, the panel stacking method of the solar panel device of the present invention is characterized in that, in a solar panel device consisting of a frame and legs fixed to the frame, a stand to be installed on an installation surface, and a first solar panel mounted on the stand, a second solar panel having a transparent glass, transparent sheet or transparent film on its light-receiving surface is mounted on the first solar panel and fixed to the first solar panel or stand with a fixing device or adhered to the first solar panel with an adhesive, the generated power is also extracted from the second solar panel, and a current limiting element for preventing reverse current is connected to the output line of the solar panel with a lower generated voltage.

[0010] One of the features of the present invention is that, with a first solar panel mounted and fixed on a mounting base, a second solar panel is stacked on top of the first solar panel and fixed or adhered to it. This allows the second solar panel to be used to generate power when the first solar panel below deteriorates and breaks down due to long-term use or exposure to a harsh environment, thereby making effective use of the mounting base.

[0011] The second solar panel may be a conventional solar panel well known to those skilled in the art, i.e., a solar panel having a structure in which a solar panel module is mounted on a substrate and covered with a protective glass, or it may be a sheet-type or film-type solar panel which has been recently developed, or it may be a translucent solar panel composed of a transparent sheet-type, transparent film-type or transparent glass-type solar panel.

[0012] In particular, when using a translucent solar panel consisting of a transparent sheet-shaped, transparent film-shaped or transparent glass-shaped solar panel, the translucent solar panel can be mounted and adhered to the first solar panel, for example during manufacture, before the first solar panel deteriorates or breaks down, thereby increasing the power generation of the solar panel.

[0013] The first solar panel may be adapted to cut off output when the solar panel deteriorates and breaks down, or may be adapted to continue outputting power as is. If output is to be continued, the generated voltages of the first and second solar panels may differ, and for example, the generated voltage of the first solar panel may drop due to deterioration, causing the current from the second solar panel to flow back to the first solar panel. Therefore, it is advisable to provide a limiting element to prevent the current from flowing back from the second solar panel to the first solar panel.

[0014] Also, a solar panel device in which the above-mentioned first and second solar panels are stacked is also new. That is, according to the present invention, it is possible to provide a solar panel device comprising: a stand that is made up of a frame and legs fixed to the frame and that is to be installed on an installation surface; a first solar panel mounted on the stand; and a second solar panel that is mounted on the first solar panel and fixed to the first solar panel or stand with a fastener or adhered to the first solar panel with an adhesive, and from which generated power is extracted. [Brief description of the drawings]

[0015] [Figure 1]1A to 1C are diagrams illustrating a preferred embodiment of a method for repairing a solar panel device according to the present invention; [Diagram 2] FIG. 13 is a diagram illustrating a second embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0016] The present invention will be described below with reference to the specific examples shown in the accompanying drawings. Figure 1 shows a preferred embodiment of a solar panel device according to the present invention. In the figure, a mounting base 10 is composed of a rectangular frame 11 and legs 12 fixed to the frame 11 and holding the frame 11 in an inclined state, and the legs 12 are installed on an installation surface such as the roof of a building.

[0017] A first solar panel 20 is mounted on a frame 11 of the mounting stand 10 and fixed thereto with bolts and nuts, and a second solar panel 30 is mounted on the first solar panel 20 and fixed to the frame 11 with fasteners 31.

[0018] The first solar panel 20 outputs generated power through an output line 22 to which a limiting element 23 for preventing backflow is connected.

[0019] If the solar panel 20 deteriorates or breaks down after a long time has passed since the solar panel device 10 was installed, or if it is installed in a poor environment, a second solar panel 30 is mounted on the first solar panel 20. Since a fixing flange 30A is formed on the second solar panel 30, the second solar panel 30 can be fixed to the frame 11 by hooking and tightening a fixing tool 31 between the flange 30A and the frame 11 of the mounting stand 10, and the generated power of the second solar panel 30 can be taken out by connecting the output line of the second solar panel 30.

[0020] In this case, if a limiting element 22 is connected to the output line 21 of the first solar panel 20, the generated current of the second solar panel 30 will not flow back to the first solar panel 20, thereby ensuring the life of the first solar panel 20.

[0021] 2 shows a second embodiment, in which the same reference numerals as in Fig. 1 indicate the same or corresponding parts. In this example, a transparent sheet-like translucent solar panel (which may be transparent glass or transparent film) is used as the second solar panel 30, and the second solar panel 30 is bonded to the first solar panel 20.

[0022] If the second solar panel 30 is a translucent solar panel made of a transparent sheet, it can be mounted and adhered onto the first solar panel 20, for example, during manufacture, before the first solar panel 20 deteriorates or breaks down. [Explanation of symbols]

[0023] 10 Mounting stand 11 Frame 12 legs 20 First Solar Panel 30 Second Solar Panel 32 Fixtures

Claims

1. In a solar panel device including a stand (10) that is made up of a frame (11) and legs (12) fixed to the frame (11) and that is to be installed on an installation surface, and a first solar panel (20) mounted on the stand (10), when a translucent second solar panel (30) is mounted on the first solar panel (20) for repair, A method for repairing a solar panel device, comprising the steps of: fixing the second solar panel (30) to the first solar panel (20) or to a stand (10) with a fixture (31) or adhering the second solar panel (30) to the first solar panel (20) with an adhesive; connecting an output line of the second solar panel (30) to an output line (21) of the first solar panel (20) so that the generated power from the second solar panel (30) is taken out together with the generated power of the first solar panel (20); connecting a diode (22) which is a current limiting element for preventing reverse current to the output line (21) of the first solar panel (20); and preventing reverse current from the second solar panel (30) to the first solar panel (20) by the current limiting element for preventing reverse current (22).

2. 2. The method of claim 1, wherein the light-transmitting second solar cell comprises a transparent glass, a transparent sheet, or a transparent film.

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