JP3229928U - Lighting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lighting device capable of reducing costs and improving efficiency of installation work. SOLUTION: A lighting device 1 is formed in a shell shape as a whole by a light source 3 provided with a light emitting diode element and a plurality of reflecting plates 4a and the like arranged at intervals, and reflects light from the light source 3. The body 4, the light-transmitting shell-shaped cover 2 that surrounds the light source 3 and the reflector 4, and the reflectors 4a in the reflector 4 that are provided inside the reflector 4 and pass through the cover 2. It includes a solar cell 6 that generates light from the passing external light and light from a light source, and a storage battery 7 that stores the power from the solar cell and supplies the stored power to the light source. [Selection diagram] Fig. 1

Description

The present invention relates to a lighting device.

Various lighting devices have been proposed for use in roads, parks, outdoor parking lots, and the like. For example, Patent Document 1 discloses a lighting device used as a street light.

This lighting device is provided with a solar cell, and is configured to emit light not only with electric power supplied from a power line or the like but also with electric power generated by the solar cell.

Japanese Unexamined Patent Publication No. 2004-281327

By the way, in the lighting device of Patent Document 1, the lighting portion that illuminates the road or the like is attached to the lower surface portion of the support column, and the power generation portion including the solar cell is attached to the upper surface portion of the support column. That is, since the lighting portion and the power generation portion are separated, it is necessary to provide a protective member such as a cover to cover them, which leads to an increase in cost. In addition, since the separated lighting portion and the power generation portion must be attached to the columns respectively, the installation work requires time and effort.

Further, since the power generation portion is located on the upper surface of the support column and is directly exposed to rain from above, sand or the like rolled up by the wind adheres to the power generation portion and easily accumulates on the power generation portion. Therefore, if the accumulated sand and the like are not removed frequently, the power generation efficiency will decrease.

In view of these points, the present invention can reduce costs and improve the efficiency of installation work as compared with the conventional lighting device, and lower the power generation efficiency due to the accumulation of sand and the like as compared with the conventional lighting device. The purpose is to propose lighting fixtures that are less likely to cause.

In the present invention, a light source including a light emitting diode element, a reflector formed in a shell shape as a whole by a plurality of reflectors arranged at intervals, and reflecting light from the light source, and the light source and the reflection. A transparent shell-shaped cover that surrounds the body, and external light and light from the light source that are provided inside the reflector and that pass through the cover and pass between the reflectors in the reflector. It is a lighting device including a solar cell that generates light and a storage battery that stores the electric power from the solar cell and supplies the stored electric power to the light source.

Such a lighting device preferably includes a second reflector inside the reflector, which reflects light from the light source toward the reflector.

According to the lighting device of the present invention, since the light source and the solar cell are arranged inside one cover, compared with the conventional lighting device that requires protective members for the lighting part and the power generation part, respectively. , Cost can be reduced. Further, since the light source and the solar cell are housed inside one cover and can be handled integrally, it can be installed more easily than the lighting device in which the lighting portion and the power generation portion are separated. Further, with such a configuration, the power generation efficiency is less likely to be lowered due to the accumulation of sand or the like, as compared with the conventional lighting device in which the power generation portion is provided on the upper surface of the support column.

In addition, the reflector can effectively utilize the light from the light source to illuminate the intended portion brighter. Further, it is possible to reduce the number of light emitting diode elements constituting the light source as compared with the conventional one while maintaining the brightness as in the conventional one. Further, the reflector is composed of a plurality of reflectors arranged at intervals, and the solar cell generates electricity not only by the external light passing between the reflectors but also by the light from the light source. It can generate electricity effectively.

Further, when a second reflector that reflects the light from the light source toward the reflector is provided inside the reflector, the intended portion can be illuminated with higher efficiency.

It is a schematic diagram which showed one Embodiment of the lighting apparatus which concerns on this invention roughly.

Hereinafter, an embodiment of the lighting device according to the present invention will be described with reference to the drawings. The lighting device of the present invention can be used in various places regardless of whether it is outdoors or indoors. As an example, the following description describes a case where it is used to illuminate a road or the like from above. In the following description, the vertical direction means a direction along the central axis O. The radial direction is a direction orthogonal to the central axis O in a plane perpendicular to the central axis O, and the circumferential direction is a direction to orbit around the central axis O in this plane.

FIG. 1 is a schematic view schematically showing the lighting device 1 of the present embodiment. The lighting device 1 includes a cover 2, a light source 3, a reflector 4, a second reflector 5, a solar cell 6, and a storage battery 7.

The cover 2 is translucent and is made of a transparent or translucent material (for example, synthetic resin, glass, etc.). Further, the cover 2 has a shell shape and is relatively thin and hollow. In the present embodiment, the shape is a semi-elliptical spherical shell in which the length in the radial direction is shorter than the length in the vertical direction, but the shape is not limited to this shape, and is formed so as to be, for example, a hemispherical shell. It may be formed into a conical shell shape.

The cover 2 of the present embodiment is provided with a support portion 2a on the upper portion thereof, and is held by attaching the support portion 2a to a support column or the like (not shown).

Although the lower part of the illustrated cover 2 is open, the opening may be closed by a translucent lid.

A light source 3 is provided on the upper part inside the cover 2. The light source 3 includes one or more light emitting diode elements. The light source 3 is electrically connected to the storage battery 7, and the light emitting diode element emits light by the electric power supplied from the storage battery 7. The light source 3 may be connected to a commercial power source to supplement the power shortage of the storage battery 7. In the light source 3 of the present embodiment, the light emitting diode element is arranged so that light is emitted toward the side and the lower side.

The reflector 4 is composed of a plurality of reflectors 4a, 4b, and 4c. The reflector 4a or the like is formed of, for example, a thin metal plate having a gloss, and has a function of reflecting light. In the present embodiment, a plurality of reflectors 4a having a substantially rectangular shape are arranged in the circumferential direction with the central axis O as the center, and an aggregate of these reflectors 4a is positioned directly under the light source 3. Further, the aggregates of the reflectors 4b and the reflectors 4c arranged in the circumferential direction like the reflectors 4a are arranged so as to be spaced apart in the vertical direction. It should be noted that, with respect to the aggregate of the reflectors 4a arranged in the circumferential direction, the aggregates of the reflectors 4b and the reflectors 4c are sequentially increased in length in the radial direction, such as the reflectors 4a. Are also arranged at intervals in the radial direction. By arranging the reflector 4a and the like in this way, the reflector 4 is formed in a shell shape as a whole (in the present embodiment, a semi-elliptical spherical shell shape as a whole). Further, a gap G is provided between the reflectors 4a and the like.

In the present embodiment, the reflector 4 is composed of the reflectors 4a, 4b, and 4c, but the number of the reflectors 4a and the like is not limited, and four or more types may be used. Further, the gap G of the present embodiment is formed by shifting the reflector 4a or the like in both the vertical direction and the radial direction, but it may be formed by shifting either the vertical direction or the radial direction. , Reflecting plates 4a adjacent to each other in the circumferential direction may be separated from each other so that a gap G is formed in the circumferential direction.

As shown in the drawing, the second reflector 5 is arranged inside the reflector 4 directly below the light source 3. The second reflector 5 is formed by combining a plurality of glossy metal thin plates such as a reflector 4a and the like. The second reflector 5 of the present embodiment has an upper cone portion extending diagonally so as to spread radially from the upper side to the lower side, and a lower end portion of the upper cone portion that narrows in the radial direction downward. The shape (diamond-like shape) is a combination of the lower cone portion extending diagonally as described above.

The angle and position of the reflector 4a and the like in the reflector 4 and the angle and position of the second reflector 5 are the direct light L1 from the light source 3 and the reflected light L2 obtained by reflecting the direct light L1 by the reflector 4 and the like. However, in the end, it is set so that it is mainly irradiated downward.

The solar cell 6 converts the energy of the light irradiated to the solar cell 6 into electric power. The solar cell 6 is provided inside the reflector 4 as shown in the figure, and generates electricity by the illuminated light. The number of the illustrated solar cells 6 is an example, and the number is not limited to this.

The angle and position of the solar cell 6 are generated by the external light L3 that passes through the cover 2 and passes between the gaps G of the reflector 4, and is also generated by the light from the light source (direct light L1 or reflected light L2 described above). Is set to generate electricity.

The storage battery 7 is electrically connected to the solar cell 6 by wiring or the like (not shown). The electric power generated by the solar cell 6 is stored in the storage battery 7 and supplied to the light source 3. The storage battery 7 of the present embodiment is provided adjacent to the light source 3 above the light source 3, but the position where the storage battery 7 is provided is not limited, and the storage battery 7 may be provided inside the cover 2 at a location separated from the light source 3. .. Further, it may be provided separately from the cover 2 on the outside of the cover 2.

Since the lighting device 1 having such a form has both the light source 3 and the solar cell 6 arranged inside the cover 2, the cost is lower than that of the conventional lighting device which requires a protective member for each. Can be reduced. Further, since the light source 3 and the solar cell 6 are housed inside one cover 2 and can be handled integrally, they can be easily installed.

The lighting device 1 can generate electricity by hitting the solar cell 6 with external light L3 that passes through the cover 2 and passes between the gaps G of the reflector 4 during the daytime. Therefore, the electric power generated during the daytime is stored in the storage battery 7.

Then, at night, the light source 3 can be made to emit light by the electric power stored in the storage battery 7 to illuminate the road or the like located below the lighting device 1. The lighting device 1 includes a reflector 4 and a second reflector 5, which can irradiate the light from the light source 3 mainly downward. Therefore, as compared with the case where only the light source 3 is used. It can illuminate roads and the like brightly.

Further, when the light source 3 is made to emit light, the solar cell 6 also generates electricity with the light (direct light L1 or reflected light L2). Therefore, electric power can be stored in the storage battery 7 even at night.

Although one embodiment of the present invention has been described above, the present invention is not limited to the specific embodiment, and unless otherwise specified in the above description, the present invention is described in the scope of claims for utility model registration. Various modifications and changes are possible within the scope of the above. Further, the effect in the above-described embodiment is merely an example of the effect produced by the present invention, and does not mean that the effect according to the present invention is limited to the above-mentioned effect.

1: Lighting device 2: Cover 3: Light source 4: Reflector 4a, 4b, 4c: Reflector 5: Second reflector 6: Solar cell 7: Storage battery G: Gap

Claims (2)

A light source with a light emitting diode element and
A reflector that is formed in a shell shape as a whole by a plurality of reflectors arranged at intervals and reflects light from the light source, and a reflector.
A translucent shell-shaped cover that surrounds the light source and the reflector,
A solar cell provided inside the reflector, which transmits electricity through the cover and generates electricity by external light passing between the reflectors in the reflector and light from the light source.
A lighting device including a storage battery that stores electric power from the solar cell and supplies the stored electric power to the light source. The lighting device according to claim 1, further comprising a second reflector inside the reflector, which reflects light from the light source toward the reflector.

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