Lighting device

Abstract

To provide a lighting device with a solar cell.SOLUTION: A lighting device 1 comprises a body 7, a solar cell panel 9, and a luminaire 11. The solar cell panel 9 is mounted on a top surface 27a of the body 7 through at least to a front surface 27b. The luminaire 11 is illuminated with electric power generated by the solar cell panel 9.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a lighting device. [Background technology]

[0002] There was a demand for lighting devices with solar cells. Summary of the Invention [Problem to be solved by the invention]

[0003] SUMMARY OF THE PRESENT EMBODIMENT An object of the present invention is to provide a lighting device equipped with a solar cell. [Means for solving the problem]

[0004] The invention described in claim 1 is a lighting device comprising a main body, a solar cell panel, and a lighting fixture, the solar cell panel being arranged from the top surface of the main body to at least the front surface, and the lighting fixture being illuminated using electricity generated by the solar cell panel. Effect of the Invention

[0005] According to the invention recited in claim 1, the lighting fixture is lit with electricity generated by the solar panel, making it possible to provide lighting that utilizes renewable energy. The solar cell panel is provided from the top surface of the main body to at least the front surface, so that it can receive sunlight not only when the sun is directly overhead, but also when the sun starts to set or rise, and can receive sunlight for a long period of time by following the movement of the sun. [Brief description of the drawings]

[0006] [Figure 1] 1 is a vertical cross-sectional view of a lighting device according to an embodiment of the present invention in a use state. [Diagram 2] 2A to 2E are diagrams of the lighting device shown in FIG. 1, where (a) is a front view, (b) is a top view, (c) is a bottom view, (d) is a right side view, and (e) is a left side view. [Diagram 3]1A and 1B are diagrams of a base frame, where (a) is a front view and (b) is a side view. [Figure 4] 1A and 1B are diagrams showing a state in which the lighting device is used, in which (a) is a front view and (b) is a side view. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0007] Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings. As shown in FIG. 4, the lighting device 1 according to this embodiment is attached to an outdoor wall surface 3 and illuminates a signboard 5 provided on the wall surface 3. The lighting device 1 is provided on a signboard 5 provided on a wall 3, protruding from the wall 3 toward the front, and illuminates the signboard 5 from diagonally above the front. The lighting device 1 is provided above the signboard 5, elongated in the left-right direction with dimensions approximately equal to the left-right width of the signboard 5, and also serves as a canopy for the signboard 5. Signboard 5 has letters or images such as A, B, C, D, etc. painted on its front.

[0008] As shown in FIG. 1, the lighting device 1 includes a main body 7, a solar panel 9, and a lighting fixture 11. The main body 7 is provided long on both sides of the wall surface 3 (see FIG. 4), and includes a base frame 13 fixed to the wall surface 3, and a eaves portion 15 provided so as to protrude forward from the base frame 13. The base frame 13 is fixed to the wall surface 3 by anchors 17. In this embodiment, the anchors 17 are arranged in pairs, one above and one below, and each pair is arranged on the left and right with a gap between them. Each anchor 17 is inserted into an anchor hole 17a (see FIG. 3(a)) formed in advance in the base frame 13 and hammered into the wall surface 3. The base frame 13 is formed at its upper end with a locking portion 19 for locking the upper end 15a of the eaves portion 15, and at its lower end with an engagement portion 21 for engaging the lower end 15b of the eaves portion 15 and a screw fixing portion 25 for screwing in with a screw 23. The locking portion 19 is formed with an arc-shaped inner peripheral surface 19a, and the upper end 15a is formed with a curved outer surface 15c that slides on the inner peripheral surface 19a.

[0009] The eaves portion 15 has a solar cell panel mounting surface 27. The solar cell panel mounting surface 27 has an upper surface 27a facing upward, a front surface 27b facing forward, and a lower surface 27c facing downward, and the upper surface 27a, the front surface 27b, and the lower surface 27c form a continuous curved surface. In Fig. 1, the areas of the upper surface 27a, the front surface 27b, and the lower surface 27c are shown by dashed dotted lines, but the boundary between the upper surface 27a and the front surface 27b and the boundary between the front surface 27b and the lower surface 27c separates the surfaces 27a, 27b, and 27c in the direction in which the surfaces are mainly facing. On the upper surface 27a, a panel upper end locking portion 29 is formed for locking the upper end of the solar cell panel 9 at its end on the side of the base frame 13. The panel upper end locking portion 29 is a step portion formed on the upper surface 27a. A panel holder 33 is fixed to the panel upper end retaining portion 29 with a screw 32 to hold down the upper end 9a of the solar panel from above. As shown in FIG. 2(b), the panel retainer 33 is a long and narrow plate-like member extending along the longitudinal direction of the eaves portion 15, and the screws 32 are provided at predetermined intervals along the longitudinal direction. A panel lower end holding portion 31 into which the lower end 9b of the solar cell panel 9 is inserted and held is formed on the lower surface 27c of the solar cell panel mounting surface 27. The panel lower end holding portion 31 is a groove that is continuously formed along the longitudinal direction (left-right direction) of the eave portion 15.

[0010] The eaves portion 15 has a rear side portion 16a that houses a battery controller unit 34 (described later) on the base frame 13 side, and a front side portion 16b that protrudes forward from the rear side portion 16a and houses the lighting device 11. At the rear side portion 16a, an upper end 15a and a lower end 15b of the above-mentioned eaves portion 15 are formed on the wall surface 3 side. An upper engaged portion 37 is formed on the upper front side of the rear side portion 16a, with which the upper engaging portion 35 of the front side portion 16b engages from above, and a lower engaged portion 41 is formed on the lower front side of the rear side portion 16a, with which the lower engaging portion 39 of the front side portion 16b engages from above.

[0011] The battery controller unit 34 is connected by wiring to the solar cell panel 9, and stores the power generated by the solar cell panel 9, and controls a light sensor (not shown) and the like attached to the main body 7. The light sensor detects when the sun sets and the surroundings become dark, and when the sun rises and the surroundings become bright. In addition, the battery controller unit 34 is connected to the lighting fixture 11 and controls the lighting provided by the lighting fixture 11 by transmitting or stopping the transmission of power to the lighting fixture 11 based on detection by the light sensor.

[0012] Incidentally, reference numeral 43 shown in FIG. 2(a) denotes a wiring hole of the solar cell panel 9. 2(d) and (e) show end caps 45 that close the left and right ends of the eave portion 15. As shown in FIG.

[0013] As shown in Figures 2(a) and (b), multiple solar cell panels 9 are placed side by side on the solar cell panel mounting surface 27 of the eaves portion 15, and as shown in Figure 1, one solar cell panel 9 is placed continuously over the upper surface 27a, the front surface 27b and the lower surface 27c of the solar cell panel mounting surface 27. This solar cell panel 9 is a flexible amorphous solar power generation sheet made mainly of resin, and is therefore lightweight and can be flexibly arranged along curved surfaces.

[0014] The lighting device 11 includes light emitting diodes (LEDs) 47 arranged at intervals on the substrate 11a. As shown in FIG. 2(c), the light emitting diodes 47 are provided at intervals along the longitudinal direction of the eaves portion 15. In FIG. 1, an illumination panel 49 for emitting uniform light without unevenness is provided on the illumination side of the light emitting diode 47 so as to face the light emitting diode 47.

[0015] Next, the installation of the lighting device 1 will be described. As shown in FIG. 3, base frame 13 is placed in a position where signboard 5 is illuminated from diagonally above, and base frame 13 is fixed to wall surface 3 with anchors 17 (see FIG. 1) passed through anchor holes 17a of base frame 13.

[0016] On the other hand, the eaves portion 15 is assembled. As shown in Fig. 1, the eaves portion 15 is assembled by first incorporating the substrate 11a on which the light emitting diodes 47 are provided into the front portion 16b, then engaging the lower engaging portion 39 of the front portion 16b with the lower engaged portion 41 of the rear portion 16a from above, and engaging the upper engaging portion 35 of the front portion 16b with the upper engaged portion 37 of the rear portion 16a from above. Then, the upper engaged portion 37 of the rear portion 16a and the upper engaging portion 35 of the front portion 16b are fixed together with the screws 51. On the other hand, a battery controller unit 34 is attached to the rear side portion 16a.

[0017] Next, as shown in Figure 1, the upper end 15a of the eaves portion 15 is angled downward and engaged with the locking portion 19 of the base frame 13 from diagonally above and ahead, and then the front side of the eaves portion 15 is rotated downward as indicated by arrow R, causing the outer surface 15c of the upper end 15a to slide along the inner surface 19a of the locking portion 19, so that the lower end 15b of the eaves portion 15 is locked with the locking portion 21 of the base frame 13 of the locking portion 19 and is overlapped on the screw fixing portion 25 of the base frame 13. Then, the screw fixing portion 25 of the base frame 13 and the lower end 15b of the eaves portion 15 are fixed with the screw 23. When the eaves portion 15 needs to be removed from the wall surface 3 for maintenance or the like, the eaves portion 15 can be removed from the base frame 13 by removing the screws 23 and following the procedure in reverse to that for installation.

[0018] The effects of this embodiment will be described. During the day, the power generated by the solar panel is stored in the battery controller unit 34, and at night, the lighting fixture 11 is turned on with the power stored in the battery controller unit 34. The lighting device 1 according to this embodiment lights up the lighting fixture 11 with power generated by the solar cell panel 9, and therefore provides lighting that utilizes renewable energy. The solar cell panel 9 is provided from the upper surface 27a of the main body 7 to at least the front surface 27b, so that it can receive sunlight not only when the sun is directly overhead, but also when the sun starts to set or rise, and can receive sunlight for a long period of time by following the movement of the sun. Furthermore, the solar cell panel 9 is also installed facing downwards on the underside 27c of the main body 7, so that it can generate electricity by receiving reflected sunlight from the ground, thereby increasing the amount of electricity generated. Thus, in this embodiment, the solar cell panel 9 is continuously provided from the upper surface 27a of the main body 7 to the front surface 27b and the underside 27c, so that it can receive sunlight from many surfaces of the main body 7 and generate a large amount of electricity. Since the solar cell panel 9 is a flexible amorphous solar power generation sheet, it can be arranged continuously along the curved surface of the eaves portion 15. Note that the solar cell panel 9 is not limited to an amorphous type, so long as it is a flexible solar power generation sheet.

[0019] The solar cell panel 9 can be attached to the eaves portion 15 by inserting the lower end 9b into the panel lower end holding portion 31 of the eaves portion 15 and pressing the upper end 9a with the panel presser 33, so that the solar cell panel 9 can be easily attached.

[0020] The main body 7 is composed of a base frame 13 fixed to the wall surface 3 and an eaves part 15 protruding forward from the base frame 13, and the upper side of the entire signboard 5 is covered with the eaves part 15, so that the signboard 5 is not easily directly affected by wind and rain. The eaves part 15 can be assembled by engaging the upper end 15a with the locking part 19 of the base frame 13 and engaging the lower end 15b with the engagement part 21 of the base frame 13, and then tightening the engagement part 21 with a screw 23, so that the hands can be released from the eaves part 15 when tightening the screw 23, resulting in good workability. By removing the eaves portion 15 from the base frame 13, the solar cell panel 9, lighting fixtures 11 and battery controller unit 34 can be removed as a unit, facilitating installation and inspection of each part such as the solar cell panel 9.

[0021] The present invention is not limited to the above-described embodiment, and various modifications are possible without departing from the gist of the present invention. For example, the lower surface 27c of the solar cell panel 9 is not limited to facing diagonally forward, and may be arranged to face directly downward so as to increase its area. This allows the solar cell panel 9 to receive more reflected light from the ground and further increase the amount of power generation. The battery controller unit 34 is not limited to controlling the power sent to the lighting fixture 11 by detecting sunset and sunrise using a light sensor, but may also control the lighting time using a timer. [Explanation of symbols]

[0022] 1 Lighting equipment 7 Main unit 9. Solar Panels 11 Lighting equipment 27a Top surface (top surface of main body) 27b Front (front of the unit)

Claims

[Claim 1] The device comprises a main body, a solar panel, and a lighting device; The solar panel is provided from the top surface of the main body to at least the front surface, A lighting device characterized in that a lighting fixture is lit with electricity generated by a solar panel.

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