JP3182752U - Solar panel device - Google Patents

Abstract

A solar panel device that generates power by effectively using light energy of a planar lighting device is provided.
In a solar panel device that receives light from an illuminating device and generates power, a light reflecting portion 16 is provided on a back surface 12 and a minute concave light reflecting portion 15 is formed on the surface 11 so that light is emitted from the surface 11. A light guide plate 10 that emits light, and a planar illumination device that is disposed on a side end surface of the light guide plate 10 and that has a light source 14 that causes light to enter the light guide plate 10, and the light guide plate that is attached to the surface side of the planar illumination device. 10 includes a transparent solar panel 20 that receives a part of visible light and ultraviolet light among the light emitted from the surface 10 and generates power by receiving ultraviolet light.
[Selection] Figure 2

Description

  The present invention relates to a solar panel device, and more particularly to a device that generates power by effectively using light energy of a planar lighting device.

  A solar panel is attached to the reflector behind the fluorescent lamp, the light from the fluorescent lamp is received by the solar panel, the condenser or rechargeable battery is charged by the electromotive force of the solar panel, and the fluorescent lamp fixture is switched off, or the fluorescent lamp It has been proposed that when an appliance is extinguished, an emergency lamp or a guide lamp is energized from a capacitor or a rechargeable battery so that the lamp is turned on to effectively use electric energy (Patent Documents 1 and 2).

  The present applicant has also developed and applied for a solar panel device that efficiently generates light by receiving light from a fluorescent lamp or an LED lamp (Patent Document 3 and Patent Document 4).

  Recently, a transparent organic EL layer is formed on one side of a transparent glass plate, a transparent solar panel layer is formed on the other side of the transparent glass plate, and the electric power generated by the transparent solar panel layer is stored in a power storage device. There has been proposed an organic EL device that is used as a power source for the above.

  In addition, a light source such as an LED is provided on the side end surface of the light guide plate, a light reflection portion is provided on the front and back surfaces of the light guide plate, light is incident on the light guide plate and reflected by the light reflection portion, and light is transmitted in front of the light guide plate. Side-illuminated planar illumination devices that emit uniformly are proposed and put into practical use (Patent Documents 5 and 6).

JP 2010-135206 A Utility Model Registration No. 3146894 International Publication No. 2012/008194 International Publication No. 2012/153550 Japanese Patent Laid-Open No. 2001-84823 JP 2002-40959 A

  In this situation, an object of the present invention is to provide a solar panel device that generates power by effectively using light energy of a side-illuminated planar illumination device.

  Therefore, the solar panel device according to the present invention is a solar panel device that receives light from the lighting device to generate power, and a light reflecting portion is provided on the back surface, and a minute concave light reflecting portion is formed on the surface. A planar illumination device having a light guide plate that emits light, and a light source that is disposed on a side end surface of the light guide plate and causes light to enter the light guide plate, and a surface of the light guide plate that is attached to a surface of the planar illumination device And a transparent solar panel that generates light by receiving light outside the visible light region among the light emitted from the light source.

  One of the features of the present invention is that a transparent solar panel is attached to the surface of a side-illuminated planar illumination device having a light reflecting portion formed on the back surface, and the solar panel receives the light from the planar illumination device to generate power. It is in the point which did.

  As a result, even in a side-illuminated planar illumination device, power can be generated by effectively using light energy.

  In addition, the light guide plate of the side-illuminated planar illumination device may be provided with light reflecting portions on the front and back surfaces. However, if the light reflecting portion on the surface of the light guide plate is formed in a convex shape, the transparent solar panel and the convex shape are formed. There is a gap between the light reflecting portion and the periphery of the light reflecting portion, which may reduce the light emission efficiency and the reflection efficiency.

  Therefore, when the present invention is applied to a planar lighting device in which light reflection portions are formed on the front and back surfaces of the light guide plate, the light reflection portion on the surface of the light guide plate is preferably a minute concave light reflection portion, A decrease in light reflection efficiency and emission efficiency on the surface side of the light guide plate due to the transparent solar panel can be reduced.

  The light reflecting portion on the back surface of the light guide plate may be a minute concave light reflecting portion or a reflecting plate. The transparent solar panel may be a solar panel using a glass plate or a hard plastic plate as a substrate, or a solar panel using a soft plastic film or the like as a substrate.

  If a transparent glass plate for protection or a transparent hard plastic plate is provided on the surface side of the planar lighting device, a transparent solar panel can be attached to the outer or inner surface of this transparent glass plate or transparent hard plastic plate. Good.

1 is a schematic exploded perspective view showing a preferred embodiment of a solar panel device according to the present invention. It is principal part sectional drawing for demonstrating the effect | action in the said embodiment. It is principal part sectional drawing which shows 2nd Embodiment. It is principal part sectional drawing which shows 3rd Embodiment. It is principal part sectional drawing which shows 4th Embodiment.

  Hereinafter, the present invention will be described in detail based on specific examples shown in the drawings. 1 and 2 show a preferred embodiment of a solar panel device according to the present invention. In the figure, the solar panel device is composed of a planar lighting device and a transparent solar panel 20.

  The planar lighting device includes a light guide plate 10, and the light guide plate 10 is made of, for example, a glass material or a synthetic resin material. It is formed over almost the entire surface.

  A linear light source 14 is provided on the side end surface of the light guide plate 10, and the light source 14 is covered with a cover 13. The light source 14 can be constituted by, for example, a fluorescent lamp or an LED lamp in which a plurality of LEDs are linearly arranged.

  Further, a transparent solar panel 20 is attached to the surface of the light guide plate 10. The transparent solar panel 20 can be composed of a laminate of a p-type transparent semiconductor layer and an n-type transparent semiconductor layer, for example, between first and second transparent electrode layers. For example, tin-doped indium oxide is used for the first transparent electrode layer, for example, tin oxide is used for the second transparent electrode layer, and for example, a p-type copper aluminum oxide semiconductor layer is used for the p-type transparent semiconductor layer. For example, an n-type zinc oxide semiconductor layer can be used as the n-type transparent semiconductor layer.

  Further, the transparent solar panel 20 can be constituted by a laminate of a p + type transparent semiconductor layer and an n− type transparent semiconductor layer between the first and second transparent electrode layers. For example, p + type polycrystalline silicon can be used for the p + type transparent semiconductor layer, and n− type polycrystalline silicon can be used for the n− type transparent semiconductor layer. In addition, a known transparent solar panel can be employed.

  When the light source 14 is turned on, light is incident from the side surface of the light guide plate 10, and the light is reflected one after another by the light reflecting portions 15 and 16 of the front and back surfaces 11 and 12 of the light guide plate 10, and forward from the surface of the light guide plate 10. Is emitted.

  The light emitted from the light guide plate 10 is transmitted through the transparent solar panel 20, and at this time, part of the ultraviolet light and visible light is absorbed by the transparent solar panel 20 to generate power.

  FIG. 3 shows a second embodiment, in which the same reference numerals as those in FIGS. 1 and 2 denote the same or corresponding parts. In this example, the light reflecting portion is formed by sticking a plurality of minute reflecting pieces 17 to the back surface of the light guide plate 10.

  FIG. 4 shows a third embodiment, in which the same reference numerals as those in FIGS. 1 and 2 denote the same or corresponding parts. In this example, the light reflection portion is formed by sticking the reflection plate 18 to the back surface of the light guide plate 10.

  FIG. 5 shows a fourth embodiment, in which the same reference numerals as those in FIGS. 1 and 2 denote the same or corresponding parts. In this example, a protective transparent glass plate 30 is provided on the surface 11 side of the light guide plate 10, and the transparent solar panel 20 is attached to the surface of the transparent glass plate 30. The transparent solar panel 20 may be attached to the inner surface side of the glass plate 30.

DESCRIPTION OF SYMBOLS 10 Light guide plate 11 Front surface 12 Back surface 14 Light source 15, 16, 17, 18 Light reflection part 20 Transparent solar panel

Claims (2)

In the solar panel device that receives light from the lighting device and generates power,
A light guide plate (10) which is provided with a light reflecting portion (16, 17, 18) on the back surface (12) and a micro concave light reflecting portion (15) is formed on the surface (11) and emits light from the surface (11); And a planar illumination device having a light source (14) disposed on a side end surface of the light guide plate (10) and causing light to enter the light guide plate (10),
A transparent solar panel (20) that generates light by receiving light outside the visible light region among light emitted from the surface (11) of the light guide plate (10) that is attached to the surface of the planar lighting device;
A solar panel device comprising:   The solar panel device according to claim 1, wherein the light reflecting portion (16) on the back surface (12) of the light guide plate (10) is a minute concave light reflecting portion formed on the back surface of the light guide plate.

Images