JP2019103378A - Reflector for vertically installed solar cell and solar power generator - Google Patents

Abstract

To provide a reflector housing and a solar power generator capable of supplementing solar radiation to a solar panel installed vertically, capable of installation in the same space as fence installation, and also provided with measures against strong wind.SOLUTION: A reflector housing installed directly under a solar cell panel installed vertically includes a drive mechanism in which a thin rectangular reflector is housed or projected leftward and rightward from the reflector housing with an inclination angle to the left or right.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a reflector housing for a vertically installed solar cell panel and a solar power generation apparatus.

  If the solar panel is installed horizontally or slightly inclined, it is considered that the amount of power generation is large, but if it is on the ground, a dedicated site is required, and if it is a roof, it is heavy and there is a concern that the earthquake resistance may deteriorate. In addition, since solar panels are made of plastic, they are also flammable materials, so care must be taken in terms of fire and fire.

  When installing a solar cell panel vertically, a large site is not necessary, but the amount of power generation is reduced because the sunlight at the strong south (south and south) of the strong sunlight does not contribute to power generation. Therefore, a reflection mirror (convex mirror) is placed horizontally in the vicinity of the vertically disposed solar cell panel to complement the sunlight irradiation (see Patent Document 1). However, the reflector is installed horizontally, which increases the installation space. In addition, since a stand for floating from the ground is required for weed control, the structure including the stand is large, and since the vertical arrangement and the horizontal arrangement are mixed, the measures against strong wind etc. are complicated.

  For example, if solar panels are installed around the roof fence space of a building, and the amount of power generation can be expected sufficiently, solar power generation will be further spread, but it has not been realized by the conventional technology.

JP, 2013-38125, A

  The present invention provides a reflector housing and a solar power generator capable of complementing the irradiation of sunlight to a vertically installed solar cell panel, capable of being installed in the same space as fence installation, and taking measures against strong wind.

  In order to solve the above-mentioned subject, it is a reflecting mirror case installed directly under the solar cell panel installed vertically, and a thin rectangular reflecting mirror body has an inclination angle from the reflecting mirror case to the right and left. It has a drive mechanism that protrudes and retracts to the left and right.

  Further, the thin rectangular reflector is composed of a reflector fixed in a reflector housing and a plurality of slidable reflectors, all of the reflectors are thin box-like, and the upper surface is a mirror with a back surface. The front is opened, and the size of the reflector that protrudes earlier can be reduced in size and can be stored in the fixed reflector, and the plurality of slidable reflectors are arranged in order from the fixed reflector. Supported by slide rails formed on the bottom surface or left and right sides of the support, and by pushing or pulling the smallest projecting reflector body, the plurality of slidable reflector bodies project from the housing, or Be stored.

  This makes it possible to reduce the size of the reflector housing installed directly below the solar cell panel and to easily increase the area of the reflector by increasing the number of slidable reflectors. It will be. In addition, it is also free to store the reflector in the case at the time of strong wind or at night.

  A thin box-like reflecting mirror may be provided with a driving mechanism in which the inclination is freely set.

  The reflecting mirror is a solar cell panel, which complements the irradiation of sunlight to the vertically installed solar cell panel, and also receives the sunlight to generate electric power.

  According to the present invention, power generation is possible even when the sun is located in the south of and near the solar panel installed vertically, and the reflector housing is installed directly under the solar panel. There is no need for a large installation space, and measures against strong winds are also possible.

The figure which shows the solar cell panel when a reflective mirror body protrudes from the reflective mirror housing | casing of this invention. The figure which shows a solar cell panel when a reflecting mirror body is accommodated in the reflecting mirror case of this invention. The figure explaining the effect of the reflective mirror case of this invention. The figure explaining the effect of the reflective mirror case of this invention. The figure which shows the external appearance which removed the lid | cover of the reflective mirror case of this invention. The figure explaining the drive mechanism of the reflective mirror case of this invention. The figure explaining the drive mechanism which changes the inclination angle of the reflective mirror case of this invention. The figure which used the reflective mirror body of this invention as the solar cell panel. The figure which installed several reflector housings in several solar cell panels. The block diagram which carries out package external control of drive of a plurality of reflective mirror cases.

A reflector housing according to an embodiment of the present invention and a solar power generation apparatus provided with the same will be described below with reference to the drawings.
FIG. 1 shows the thin rectangular reflectors 3b and 3c protruding from the reflector housing 2 installed directly under the solar cell panel 1 installed vertically. The reflector 3 a is fixed in the reflector housing 2. FIG. 2 shows how the reflecting mirror bodies 3b and 3c are accommodated in the reflecting mirror case 2 from the entrance 5. As shown in FIG. The three reflecting mirrors 3a, 3b and 3c have the same inclination.

  Figures 3a, 3b show the relationship between sunlight and reflectors. There is no irradiation from the sun located in the south of the solar cell panel installed vertically, and it is an object to irradiate this to a solar cell panel with a reflecting mirror. The inclination angle 6 of the reflector is designed in consideration of the size of the solar cell panel. Therefore, the optimum tilt angle will vary with the size of the solar cell panel. The reflected light of the reflector having the inclination angle determined in this manner is applied to the solar cell panel if the sun is near the south center (FIG. 3 b).

  FIG. 4 shows the appearance of the reflector housing 2. The reflector 3a is fixed in the reflector housing 2, and the reflectors 3b and 3c project from the reflector housing. The angles 3a, 3b and 3c are the same. It is essential that the lid 1 be translucent.

  FIG. 5 shows the inside of the reflector housing and the reflector so that the drive mechanism can be seen. The reflector 3a is fixed in a non-slidable manner in the reflector housing 2, but the reflectors 3b and 3c are slidable, and therefore can be projected and stored like a high lift wing of an airplane. For this purpose, the reflecting mirror is box-shaped, with a mirror placed on the top, the back and the front opened, and the sizes 3a, 3b and 3c decrease in this order. The slidable and inclined holding is performed by the slide rail 11. Although the slide rails 11 are formed on the left and right sides of the box-like reflecting mirror in this figure, the slide rails may be installed not on the side but on the bottom.

  The reflecting mirror bodies 3b and 3c are protruded or stored by pushing or pulling the reflecting mirror body 3c. The drive mechanism can be constituted by, for example, a motor 8, a gear for changing the direction of the rotation axis, a gear structure 10 including a universal joint that transmits rotation freely and a ball screw, and a pantograph drive unit 9. Although not shown, a driver for driving the motor is incorporated in the reflector housing together with the motor 8, but a CPU (or MCU or PC) for sending a signal to the driver for program control is disposed outside as described later It is good to control.

  Although FIG. 6 shows a drive mechanism for changing the inclination angle of the reflectors 3a, 3b, 3c, this can be performed by adding a motor 8. In the drawing, the inclination of the support bar 12 is changed by the ball screw 12. If the inclination can be freely changed, not only direct light but also reflected light can be added to the solar cell panel according to the sun's diurnal movement. Since the reflector is housed at the time of strong wind or at night, the durable life is improved.

  FIG. 7 shows an example in which the solar cell panel 13 is used as a reflector. Although the reflectance is lower than a mirror using aluminum etc., it also has an advantage of generating power by itself. The type of the solar cell panel 1 is not particularly limited, but the solar cell panel 13 used for the reflector is not limited as well. For the solar cell panel 13, silicon based solar cells, CIS or CIGS solar cells, perovskite solar cells, organic thin film based solar cells, etc. can be used.

  FIG. 8 shows how a plurality of solar cell panels are installed like a fence. Normally this is the case, but just because the sun is in the south does not necessarily mean that it is directly above the solar panel. In this case, part of the reflected light of the reflector may sometimes irradiate the adjacent solar cell panel. However, the effectiveness of the reflector housing of the present invention is not diminished.

  As shown in FIG. 8, in the case of solar power generation capable of extracting large power, the electrical wiring of the plurality of solar cell panels 13 (FIG. 7) is electrically connected independently of the electrical wiring of the plurality of solar cell panels 1, Finally, it is good to combine the voltage of both systems by DC / DC converter etc and to synthesize.

  FIG. 9 is a block diagram showing the relationship between a drive unit and control relating to the installation of a plurality of units. This is a system that collectively controls the drive units of the individual reflector housings from an external control center (CPU, PC, etc.) using a master / slave method. Since the master IC and slave IC shown in the figure are commercially available, it is not necessary to develop a dedicated protocol. Normally, the reflector body should be protruded and stored by a program, but in the case of a strong wind or a typhoon, interrupt control is required, so it is performed in an external control center. The program of sticking out and storing can be created by the GPS method and the light ray detection method.

  The solar cell panel 1 of the vertical installation of FIG. 1 is preferably a double-sided light receiving solar cell panel. The crystalline silicon solar cell is capable of double-sided light reception by making the back sheet transparent. Since CIS (CIGS) solar cells are low in cost, it is also possible to use double-sided light reception by bonding two sheets.

  There is no particular limitation on the materials and parts constituting the reflecting mirror case, the reflecting mirror body, and the drive mechanism. A plastic mirror, a glass mirror, a metal mirror, a solar cell panel etc. can be used for a reflecting mirror.

DESCRIPTION OF SYMBOLS 1 solar cell panel 2 reflector housings 3a, 3b, 3c, 11 reflector housing 4 mount frame for solar battery panel 5 entrance / exit of reflector housing 6 inclination angle of reflector housing 7 cover housing for reflector housing 8 driving unit (motor )
9 pantograph type drive unit 10 gear configuration 11 reflector body 12 ball screw 13 solar battery panel

Claims (5)

  A reflector housing installed directly under a solar cell panel installed vertically, from the reflector housing, thin rectangular reflectors are projected leftward or rightward at an inclination angle, A reflector housing characterized by comprising a drive mechanism for   2. The reflector housing according to claim 1, further comprising a drive mechanism capable of freely setting the inclination of the thin reflector.   The reflector housing according to claim 1 or 2, wherein the thin reflector is a solar cell panel.   The solar power generation device characterized by the reflector housing | casing of Claim 1 thru | or 3 being installed directly under the solar cell panel.   In a solar power generation apparatus in which a plurality of reflector housings according to any one of claims 1 to 3 are installed directly under a plurality of solar cell panels installed vertically, a control unit for controlling the drive mechanism reflects A solar power generation apparatus, which is in a center outside a mirror housing and collectively controls drive mechanisms of individual reflecting mirror housings from a control unit of the center in a master / slave system.

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