JP2007224673A - Roof structure with lighting system, roof for carport using the same, roof for waiting space, and lighting system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To simplify and miniaturize the structure of a roof structure with a lighting system and to facilitate installation work. <P>SOLUTION: The roof structure 1 with the lighting system comprises a light transmitting plate 10, a frame member 20 supporting the light transmitting plate, and the lighting system 30. The lighting system 30 integrally has a power source part 31 comprising a solar panel 32 converting solar energy into electric energy, and a battery 33 storing electric energy converted by the solar panel 32; a control part 41 controlling power supply from the battery 3; and a light emitting part 51 composed of light emission diodes 52 lighted by electric power supplied from the battery 33. The solar panel is arranged to face the lower face of the light transmitting plate. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a roof structure with a lighting device, a carport roof, a waiting space roof, and a lighting device using the same.

  As a roof structure used for waiting areas such as bus stops and taxi stands, and carports, a combination of a light-transmitting plate and a frame of a light-transmitting plate made of a metal shape has become more popular than before. is doing. The roof structure is generally made of polycarbonate colored on a light-transmitting plate, and can be viewed in an upward view, so that a comfortable environment can be obtained.

  However, at bus stops, taxi stands, and carports, lighting may be required at night, but bus stops, taxi stands, or carports that are located away from the station are located away from the station. As described above, it is difficult to secure a power source in a place where there is no illumination in the periphery and particularly where illumination is required. Therefore, comfortable illumination cannot be obtained at night.

  Therefore, lighting devices using solar energy have been developed so that nighttime lighting can be secured even in places where it is difficult to secure a power source. In particular, lighting devices have been developed that temporarily brighten places where it is difficult to obtain commercial power, such as carports, warehouses, storerooms, and the like (see, for example, Patent Document 1). This lighting device includes a solar panel, a battery, and a fluorescent lamp, and further includes a fluorescent lamp inverter circuit that has been devised to convert a direct current supplied from the battery into an alternating current. Realized.

Furthermore, as another illuminating device, there exists a thing as shown to patent document 2, for example. Such an illuminating device includes a solar battery, a storage battery, and a fluorescent lamp. At the start of the fluorescent lamp, the output of the inverter is set to an alternating current with a low frequency and a high duty ratio. And configured to be an alternating current with a low duty ratio. According to this, since the storage battery can be used in an area where the voltage is low, it is possible to lengthen the lighting possible time and further improve the lamp efficiency.
JP-A-10-22088 JP 10-189262 A

  However, in the above-described rechargeable fluorescent lamp illumination device, power consumption during on / off can be suppressed, but there is a problem that the inverter circuit becomes complicated. Moreover, since the electric power of the fluorescent lamp is also required, further downsizing of the storage battery was necessary.

  On the other hand, solar panels are installed on the roof where direct sunlight can be easily obtained.Batteries and storage batteries are installed in the shade to prevent overheating, and fluorescent lights are used under the roof of carports, under warehouse eaves, and indoors. Installed on the ceiling or wall. Therefore, since it is necessary to attach each member separately and to connect each member, installation work requires a lot of labor and time.

  Therefore, the present invention has been devised to solve the above-described problems, and the roof structure with a lighting device that can be simplified and miniaturized and can be easily installed is used. It is an object of the present invention to provide a carport roof, a waiting space roof, and a lighting device.

  The invention according to claim 1 for solving the above problem is a roof structure with a lighting device comprising a light-transmitting plate, a frame material that supports the light-transmitting plate, and a lighting device, The lighting device includes a power source unit including a solar panel that converts solar energy into electric energy and a battery that stores electric energy converted by the solar panel, a control unit that controls power supply from the battery, and a power source supplied from the battery. And a light-emitting unit composed of a light-emitting diode that is turned on with electric power, and the solar panel is disposed so as to face the lower surface of the light-transmitting plate member.

  According to such a configuration, since the light emitting unit is composed of a light emitting diode, it operates with direct current, is resistant to repeated on / off flashing, and prevents an excessive increase in power consumption during on / off. it can. Therefore, unlike the case where a conventional fluorescent lamp is used, there is no need for inverter control, and it is not necessary to provide a complicated inverter circuit, so that the configuration can be simplified. Furthermore, since the power consumption can be reduced, the light receiving area of the solar panel can be reduced and the battery can be reduced in size, so that the overall lighting device can be reduced in size. In addition, the life of the light emitting part can be extended. On the other hand, since the illuminating device is integrally formed, it is not necessary to perform wiring on site, and the installation work on the roof structure can be easily performed. Furthermore, since the lighting device is disposed so that the solar panel faces the lower surface of the light-transmitting plate material, the lighting device can prevent the lighting device from getting wet in the rain, and the solar panel transmits the light-transmitting plate material. Can be received efficiently, and the power consumed by the light emitting portion can be ensured.

  The roof structure with a lighting device according to claim 2 is characterized in that the light-transmitting plate material is formed of a material that transmits at least part of sunlight.

  According to such a structure, since sunlight can be received by the solar panel, power generation can be performed efficiently.

  The roof structure with a lighting device according to a third aspect is characterized in that the light transmissive plate material is constituted by a light transmissive resin plate.

  According to such a configuration, the weight of the roof structure with a lighting device can be reduced, which is structurally advantageous.

  The roof structure with an illuminating device according to claim 4 is characterized in that the light transmissive plate material is constituted by a light transmissive glass plate.

  According to such a structure, since the intensity | strength of a light-transmitting board | plate material can be raised, attachment of an illuminating device etc. can be performed easily.

  The roof structure with a lighting device according to a fifth aspect is characterized in that the frame member is formed of an extruded shape member made of aluminum or an aluminum alloy.

  According to such a configuration, it is possible to reduce the weight of the roof structure and to ensure rust resistance.

  The roof structure with a lighting device according to claim 6 is characterized in that the extruded shape member is subjected to an anodized film treatment on the surface thereof.

  According to such a configuration, the rust resistance performance can be further enhanced, and coloring is also possible, so that a roof structure with a lighting device that is excellent in design can be provided.

  In the roof structure with a lighting device according to claim 7, the light emitting unit absorbs at least a part of light emitted from the light emitting element in which at least the light emitting layer is a nitride semiconductor, and converts the wavelength. And an inorganic phosphor that emits fluorescence.

  According to such a configuration, white light can be emitted with a simple configuration, and a long-life and bright illumination device can be provided.

  In the roof structure with a lighting device according to claim 8, the lighting device has the power supply unit, the control unit, and the light emitting unit, in which the solar panel is arranged on the top, sequentially arranged from the top. It is characterized by.

  According to such a configuration, the wiring between the members can be shortened, and the lighting device can be reduced in size and cost.

  The roof structure with a lighting device according to a ninth aspect is characterized in that a reflector that reflects light from the light emitting unit is provided around the light emitting unit.

  According to such a configuration, it is possible to efficiently irradiate light from the light emitting unit, and it is possible to provide a bright illumination device with a small amount of power consumption.

  The roof structure with a lighting device according to claim 10 is characterized in that the reflector is formed of aluminum or an aluminum alloy.

  According to such a structure, the weight reduction of a reflector can be achieved.

  The roof structure with a lighting device according to an eleventh aspect is characterized in that the reflector has a clad layer made of a high-purity aluminum layer and an aluminum alloy layer.

  According to such a configuration, even if the reflector body is formed of a material other than aluminum or aluminum alloy, a reflector having a high surface reflectance can be provided.

  In the roof structure with a lighting device according to claim 12, the cladding layer includes a high-purity aluminum layer disposed on a surface side, and the surface of the high-purity aluminum layer is polished to reduce its surface roughness. Features.

  According to such a configuration, the surface reflectance of the reflector can be further increased.

  The roof structure with a lighting device according to claim 13 is provided with a concave mirror curved upward around the solar panel, and the sunlight reflected and condensed by the concave mirror is provided to the solar panel above the concave mirror. A convex mirror for reflecting the light toward the screen is provided.

  According to such a configuration, since the sunlight reflected by the concave mirror and collected can be reflected by the convex mirror and received by the solar panel, the amount of light received by the solar panel can be greatly increased, and the power generation efficiency can be improved. Can be improved.

  The roof structure with a lighting device according to a fourteenth aspect is characterized in that the concave mirror is formed of aluminum or an aluminum alloy.

  According to such a configuration, the concave mirror can be reduced in weight, and the concave mirror can dissipate heat, and the heat of sunlight is dissipated in the air, so that the lighting device can be prevented from being overheated.

  The roof structure with a lighting device according to a fifteenth aspect is characterized in that an infrared absorbing sheet is attached to a surface of the concave mirror.

  According to such a configuration, the concave mirror can reflect visible light and ultraviolet rays to the convex mirror, and can efficiently absorb and dissipate infrared rays.

  In the roof structure with a lighting device according to claim 16, the solar panel and the concave mirror are disposed below the light transmissive plate with a predetermined interval, and the convex mirror is provided on a lower surface of the light transmissive plate. It is fixed.

  According to such a configuration, it is possible to easily install the convex mirror provided apart from the concave mirror.

  The roof structure with a lighting device according to claim 17 is characterized in that a Fresnel lens for concentrating sunlight on the solar panel is provided above the solar panel.

  According to such a configuration, since sunlight received over a wide area can be efficiently collected, the amount of light received by the solar panel can be greatly increased, and power generation efficiency can be improved.

  The roof structure with a lighting device according to claim 18, wherein the Fresnel lens is fixed to an upper surface or a lower surface of the light transmissive plate, and the solar panel is spaced from the light transmissive plate by a predetermined interval. It is arranged.

  According to such a configuration, the Fresnel lens can be easily installed.

  The roof structure with a lighting device according to claim 19 is characterized in that an infrared absorbing sheet is laid on the flat surface side of the Fresnel lens.

  According to such a configuration, the Fresnel lens can efficiently absorb and radiate infrared rays while collecting visible rays and ultraviolet rays.

  The roof structure with a lighting device according to claim 20 is characterized in that a cover for covering the light emitting part is provided below the light emitting part.

  According to such a configuration, the light emitting unit can be shielded from wind and rain, and the brightness and direction of illumination can be adjusted.

  The roof structure with a lighting device according to a twenty-first aspect is characterized in that the lighting device is provided with a light sensor that turns on a light-emitting portion according to ambient brightness.

  According to such a configuration, since the lighting device is automatically turned on / off, there is no need to provide a switch. In addition, since unnecessary power consumption can be suppressed, the lighting device can be further reduced in size.

  The roof structure with a lighting device according to a twenty-second aspect is characterized in that the lighting device is fixed to the light-transmitting plate member.

  According to such a configuration, the lighting device can be prevented from being exposed to wind and rain, and the sunlight transmitted through the light-transmitting plate material can be efficiently received, so that power can be reliably ensured.

  The roof structure with a lighting device according to claim 23 is characterized in that the lighting device is fixed to the frame member.

  According to such a configuration, even when the weight of the lighting device is relatively large, the lighting device can be reliably held by the frame material having a high strength.

  The invention according to claim 24 is a carport roof characterized by using the roof structure with a lighting device according to any one of claims 1 to 23.

  According to such a configuration, it is possible to provide a carport roof that can be simplified and downsized and can be easily installed.

  The invention according to claim 25 is a waiting space roof characterized by using the roof structure with a lighting device according to any one of claims 1 to 23.

  Here, the waiting space means a bus stop or a taxi stand outside the room. According to the said structure, while being able to achieve simplification and size reduction of a structure, the roof for waiting spaces which can perform installation work easily can be provided.

  The invention according to claim 26 is a power supply unit including a solar panel that converts solar energy into electric energy and a battery that stores electric energy converted by the solar panel, and a control unit that controls power supply from the battery; The lighting device is characterized in that a light-emitting unit that is lit by electric power supplied from the battery is provided integrally.

  According to such a configuration, while operating with direct current, it is strong against repeated on / off blinking, and it is possible to prevent an excessive increase in power consumption during on / off. Therefore, there is no need for inverter control, and it is not necessary to provide a complicated inverter circuit, so that the configuration can be simplified. Furthermore, since the power consumption can be reduced, the light receiving area of the solar panel can be reduced and the battery can be reduced in size, so that the overall lighting device can be reduced in size. In addition, the life of the light emitting part can be extended. On the other hand, since the illuminating device is integrally formed, it is not necessary to perform wiring on site, and the installation work on the roof structure or the like can be easily performed.

  ADVANTAGE OF THE INVENTION According to this invention, while the structure of a roof structure with a illuminating device can be simplified and reduced in size, the outstanding effect that an installation operation can be performed easily is exhibited.

[First embodiment]
BEST MODE FOR CARRYING OUT THE INVENTION A first best mode for carrying out a roof structure with a lighting device according to the present invention will be described in detail with reference to the accompanying drawings. In this embodiment, a case where the roof structure with a lighting device is used as a roof for a carport will be described as an example.

  FIG. 1 is a perspective view showing a best first embodiment for carrying out a roof structure with a lighting device according to the present invention, and FIG. 2 is a top view showing a roof structure with a lighting device according to the present invention. 3 is a side view showing a roof structure with a lighting device according to the present invention, FIG. 4 is a side view showing a roof structure with a lighting device according to the present invention, and FIG. 5 is a roof structure with a lighting device according to the present invention. FIG. 6 is a cross-sectional view taken along line AA in FIG. 2, and FIG. 7 is a cross-sectional view taken along line BB in FIG.

  First, the structure of the roof structure with a lighting device according to the present embodiment will be described.

  As shown in FIG. 1, the roof structure 1 with a lighting device is used as, for example, a carport roof 2, and includes a light-transmitting plate member 10, a frame member 20, and a lighting device 30.

(Light transmissive plate)
The light transmissive plate member 10 is formed, for example, in a substantially rectangular shape, and its peripheral portion is supported by the frame member 20 to form a roof surface. The shape of the light transmissive plate member 10 is determined according to the roof shape of the roof structure 1 with a lighting device. The light transmissive plate member 10 is formed of a material that transmits at least a part of sunlight. As long as it is such a material, any plate material may be used, for example, the light transmissive resin plate 11 or a light transmissive glass plate (in this embodiment, light A transparent resin plate 11 is employed.

  Examples of the material of the light transmissive resin plate 11 include polycarbonate, polystyrene, acrylic resin, and the like, and it is particularly preferable to use a resin having excellent strength and weather resistance, such as polycarbonate and acrylic resin. In the present embodiment, the light-transmitting resin plate 11 is composed of a single plate material made of the resin. However, two or more plate materials made of the arbitrary resin are laminated to form a reinforced resin. There may be. The light transmissive resin plate 11 may be a colored resin plate containing various pigments, or may be a translucent resin plate that increases surface roughness and scatters sunlight on the surface of the resin plate. In the case of the light-transmitting resin plate 11, it is the light absorption property of the polymer that greatly affects the light transmission. One of these light absorption characteristics is “electron transition absorption” that occurs in the visible / ultraviolet region, and light energy is used to make electrons excited. On the other hand, as one of the light absorption characteristics, there is “molecular vibrational absorption” that occurs in the infrared region, and light energy is converted into rotational and vibrational energy such as C—H and O—H bonds. Fortunately, the above-described resin materials such as polycarbonate, polystyrene, and acrylic resin transmit most of sunlight in the visible light region.

When the light-transmitting plate 10 is a light-transmitting glass plate, the following configuration is obtained. The light-transmitting glass plate is made by inserting a powder mixture of silica sand, soda ash, limestone, borax, aluminum hydroxide, etc. into a gas furnace and melting it at 1550 ° C., and melting this liquid glass in a narrow passage called a float bath. It was made to flow on top of tin and cooled. Since glass is mainly composed of SiO ₂ , CaO, and Na ₂ O, it generally has a high transmittance with respect to sunlight. The light-transmitting glass plate includes a glass plate that is tempered by rapidly cooling the surface, or a composite tempered glass plate that includes a glass sheet with a resin sheet sandwiched between two glass plates. To do. Further, a transition glass element such as iron, cobalt, nickel, etc. is added, and a colored glass that absorbs only light of a specific wavelength is also included in the light transmissive glass plate. Further, a so-called ground glass that increases the surface roughness and scatters sunlight on the glass surface is also included in the light-transmitting glass plate. In particular, quartz glass, which is the main component of the glass plate, is an insulator. Therefore, the band gap between the valence band and the conduction band in the band theory is large, and the absorption edge of the “electron transition absorption” is a short wavelength even in the ultraviolet region. Exists on the side. Furthermore, quartz glass is amorphous and has no crystal grain boundaries, so there is little light scattering, and an absorption edge of “lattice vibration absorption” corresponding to the “molecular vibration absorption” also exists on the long wavelength side in the infrared region. That is, quartz glass is an extremely valuable material that transmits most of sunlight. Fortunately, most glass plate materials thus transmit most of the sunlight in the visible light region.

(Frame material)
As shown in FIG. 1, the frame member 20 is composed of a beam member 22 made of a metal shape member. The beam member 22 is supported by the column member 21. The column members 21 are erected at a predetermined interval and have a base plate 23 at the lower end thereof. Anchor bolts (not shown) provided on the foundation of the ground are inserted into the base plate 23 so as to fix the column member 21 to the ground. The beam member 22 includes a large beam 24 bridged between adjacent column members 21, a cantilever beam 25 fixed to the upper part of the column member 21 and cantilevered, and a front end portion of the adjacent cantilever beam 25. It is comprised with the bridging beam 26 spanned. These large beam 24, cantilever beam 25 and connecting beam 26 are formed in a hollow shape, and reinforcing ribs (not shown) are formed inside or outside as required.

  The large beams 24 are respectively connected to the upper surfaces of the column members 21 except for both ends of the column members 21 arranged in parallel, and become a through beam extending in the parallel direction of the column members 21 to improve the aesthetic appearance. A cantilever beam 25 is connected to the upper surfaces of the column members 21 at both ends, and a large beam 24 is connected to the column member 21 via the cantilever beam 25. Further, the connecting beam 26 is connected to the tip of each cantilever beam 25, and is a through beam extending in the parallel direction of the column member 21 in the same manner as the large beam 24, thereby improving the aesthetic appearance. The front end surfaces of the cantilever beams 25 at both ends are flush with the outer surface of the connecting beam 26 (the surface far from the column member 21). The frame members 20 and the column members 21 are connected to each other using bolts and nuts (both not shown). The connection mode is not limited to this. For example, the column member 21 is formed in a hollow shape, the beam member 22 is formed in a solid shape, and the beam member 22 is fitted into the column member 21. The column member 21 and the beam member 22 may be fixed with bolts and nuts via rubber packing (not shown). Moreover, you may use the reinforcing material for fixing each pillar material 21 and the beam material 22 as needed.

  As described above, the beam material 22 (the large beam 24, the cantilever beam 25, and the connecting beam 26) connected to each other constitutes a frame of the roof and supports the peripheral portion of the light transmissive plate member 10. Specifically, support grooves 27 are respectively formed on the side surfaces of the large beam 24, the cantilever beam 25, and the connecting beam 26 on the light-transmitting plate member 10 side, and the periphery of the light-transmitting plate member 10 is formed in the support groove 27. The light transmitting plate member 10 is supported by inserting the portion. As a procedure for assembling the beam member 22, for example, after connecting the large beam 24 and the cantilever beam 25 to the column member 21, the peripheral portion of the light transmissive plate member 10 is inserted into the support groove 27 from the front end side of the cantilever beam 25. After pushing into the proximal end side, the connecting beam 26 may be connected to the distal end portion of the cantilever beam 25.

The frame member 20 and the column member 21 are made of extruded shapes made of aluminum or aluminum alloy. The extruded shape made of aluminum alloy is formed on the basis of 6063 alloy. The extruded profile based on the 6063 alloy has high strength and toughness because Mg ₂ Si is finely precipitated in the matrix by heat treatment after extrusion. Furthermore, the surface of the extruded shape material is subjected to an anodized film treatment, which is excellent in corrosion resistance and weather resistance. In the process of anodizing film treatment, it is possible to improve the appearance as a shape material of various colors by incorporating a pigment into the surface oxide film before sealing treatment. In the present embodiment, the frame member 20 and the column member 21 are formed hollow (hollow), but may be solid (solid). However, a hollow shape is preferable because it is lightweight and can provide strength efficiently. Moreover, it is good also as the extrusion bending material which integrally formed the column material 21 and the beam material 22 (cantilever beam 25).

(Lighting device)
As illustrated in FIGS. 6 and 7, the lighting device 30 includes a power supply unit 31 including a solar panel 32 that converts solar energy into electrical energy, and a battery 33 that stores electrical energy converted by the solar panel 32, a battery A control unit 41 that controls power supply from the power source 33 and a light emitting unit 51 that includes a light emitting diode 52 that is turned on by the power supplied from the battery 33 are integrally provided. The solar panel 32 is arrange | positioned so that the lower surface of the light transmissive board | plate material 10 may be opposed (refer FIG. 1). The illuminating device 30 has a casing 61, and in this casing 61, a power supply unit 31, a control unit 41, and a light emitting unit 51 having a solar panel 32 disposed at the top are sequentially disposed from the top. . The casing 61 includes a pair of side frames 61a and 61a located on both the left and right sides in FIG. 7, and a pair of end covers 61b and 61b located on both the left and right sides in FIG. . The side frame 61a is made of an extruded shape made of aluminum or aluminum alloy, and is configured to integrally support the solar panel 32, a reflector 55 described later, and a cover 56. The end cover 61b is formed of a resin molded product, and is disposed so as to cover both end portions of the side frame 61a extending in the AA line direction of FIG. The end cover 61b is fixed to the side frame 61a by screws 61c (see FIG. 4).

<Power supply part>
As shown also in FIG. 2, the solar panel 32 of the power supply unit 31 is configured by arranging a plurality of solar cells 32a in parallel. The solar panel 32 is disposed on the top of the lighting device 30. As the solar cell 32a constituting the solar panel 32, a multilayer thin film of a-Si: H or a-SiGe: H is formed on a substrate by using, for example, high-frequency plasma CVD, using glass or a plastic film as a substrate. The thing which connected the some photoelectric conversion cell in series is mentioned. Sunlight includes ultraviolet light, visible light (light having a wavelength of 400 to 760 nm), infrared light, and a wide spectrum, but the solar battery 32a having a photoelectric conversion cell converts only light having a certain wavelength into electricity. For example, in the solar cell 32a having a photoelectric conversion layer of a-Si: H, visible light in the vicinity of 400 to 600 nm is converted into electricity. The solar panel 32 is configured to obtain a predetermined voltage by attaching a plurality of these solar cells 32a. In addition, in FIG. 2, 32b shows the pressing member which presses the solar cell 32a from the top.

The energy density of sunlight is about 1 kW per m ² during the day. When the energy conversion efficiency of the solar cell 32a is 10%, the power generation capacity of the solar cell 32a is about 100 W per 1 m ² . The transmittance of the light-transmitting plate to sunlight is not necessarily 100%, but a value that decreases depending on the material. Depending on the incident angle of sunlight to the light-transmitting plate 10, it may be reflected on the surface. On cloudy and rainy days, a part of sunlight is reflected and dispersed by clouds, and the energy density on the ground decreases, and the angle of the sun changes according to the latitude, season, and time of the earth. Then, the electric power obtained from the solar panel 32 of the lighting device 30 provided in the roof structure 1 with the lighting device during the day is estimated to be about 50 W per 1 m ² .

  For example, the lighting device 30 including the solar panel 32 having an effective solar cell surface of 200 mm × 200 mm can be charged for 2 hours during the day and can be charged for 8 hours. Then, the amount of electricity of 2 W × 8 hr = 16 W · hr per day is stored in the battery 33.

  When temporary lighting such as a carport is sufficient, the usage time of the lighting device 30 is 1 hour / day, which is equal to 16 W of power. Accordingly, if one lighting device 30 is installed per carport roof, sufficient illumination can be obtained. In the present embodiment, an example is shown in which three lighting devices 30 are provided to increase the brightness.

  On the other hand, in the case of a waiting space roof installed at a bus stop or taxi stand, the usage time of the lighting device 30 is 4 hours / day, which is equal to 4 W of power. Therefore, if about four lighting devices 30 are installed per one waiting space roof, sufficient illumination can be obtained.

As shown in FIGS. 6 and 7, the battery 33 of the power supply unit 31 is disposed on the side of the control unit 41 below the solar panel 32. The battery 33 is composed of an alkaline storage battery, a nickel-hydrogen storage battery, a lithium ion battery, or the like. The battery 33 is not limited to the above-described battery, and may be any storage battery as long as it is a small, lightweight, and high-performance rechargeable battery. Among these, a lithium ion battery is particularly preferable because of its high energy density. In general, LiCoO ₂ is used for the positive electrode, C is used for the negative electrode, and an organic electrolyte containing Li ions such as LiCiO ₄ and LiPF ₆ is used for the electrolyte as the separator. Here, Li ions can enter and exit the crystal of the positive electrode and negative electrode materials, and can be charged and discharged. In the Li ion battery, Li ions move from the positive electrode to the negative electrode through the separator during charging, and conversely, Li ions move from the negative electrode to the positive electrode during discharging.

Reactions that occur during charging and discharging of a secondary battery using LiCoO ₂ as a positive electrode and a carbon material as a negative electrode are expressed by the following equations (1) and (2).

  The battery 33 is connected to the solar cell 32a of the solar panel 32. The battery 33 is charged with electricity generated by each solar cell 32a, and in the time zone where illumination such as nighttime is necessary, Operates as a power source.

<Control part>
The control unit 41 is disposed below the solar panel 32 and above the light emitting unit 51. The control unit 41 is connected to the battery 33 and the light emitting unit 51, and controls on / off and supply amount of power supplied from the battery 33 to the light emitting unit 51. The control unit 41 is provided with an optical sensor (not shown) that turns on the light emitting unit 51 according to ambient brightness. For example, the optical sensor is provided on the upper surface of the lighting device 30 at a position that does not interfere with the light reception of the solar panel 32.

<Light emitting part>
A light emitting diode 52 is used in the light emitting unit 51. The light emitting diode 52 may be of any type as long as it utilizes a light emitting element that emits visible light or ultraviolet light by recombination of electrons and holes. As the light emitting element, for example, any of red, green, and blue light emitting diodes may be used, or white light may be emitted by combining these three color light emitting diodes. As shown in FIG. 5 to FIG. 7, the light emitting diodes 52 are linearly arranged at predetermined intervals below the control unit 41.

  In the present embodiment, the light-emitting diode 52 of the light-emitting unit 51 emits fluorescence by absorbing at least a part of light emitted from the light-emitting element whose light-emitting layer is a nitride semiconductor and converting the wavelength. And an inorganic phosphor that emits light. Specifically, an ultraviolet LED light emitting element that can emit light at 350 nm to 390 nm as the main peak of the emission spectrum is used. In this case, the light emitting layer is provided with a low-temperature buffer layer such as AlN on a sapphire substrate, for example, by metal organic chemical vapor deposition (MOCVD), and an AlGaN thick film, an AlGaN-based n-type nitride semiconductor, and the like. A p-type nitride semiconductor thin film is formed, and an InAlGaN light emitting layer is formed as a cladding layer. Of course, various emission wavelengths can be selected depending on the material used for the semiconductor layer and its composition.

Examples of inorganic phosphors that emit white light include 3Ca ₃ (PO ₄ ) ₂ .Ca (F, Cl) ₂ : Sb, YVO ₄ : Dy, and the like. In addition, a mixed phosphor that emits white light and is composed of a phosphor mixture of blue, green, and red light emission. When these fluorescent materials are used, they may be formed by mixing an appropriate amount of these fluorescent materials in a light-transmitting inorganic member such as glass or a light-transmitting organic member such as resin. Further, after applying a mixture of the fluorescent material, the organic binder, and the solvent to the inner wall or the outer wall of glass or the like, it may be heated to decompose and gasify only the binder and the solvent. With such a light emitting device, bright illumination can be obtained by efficiently converting the ultraviolet rays emitted from the light emitting diode 52 into white light by the inorganic phosphor.

  As shown in FIGS. 5 and 7, a reflector 55 that reflects light from the light emitting unit 51 is provided around the light emitting unit 51. The reflector 55 is formed by pressing an aluminum plate or an aluminum alloy plate excellent in thermal shock resistance, and its surface (illuminated surface) is polished by CMP (Chemical Mechanical Polishing). As a result, the surface roughness is reduced. The reflector 55 is formed with a concave portion in which a central portion in the BB cross section of FIG. 2 is depressed with a predetermined curvature. A plurality of light emitting diodes 52 of the light emitting section 51 are arranged in a straight line at the center of the concave section, and the tips of the light emitting diodes 52 are provided so as to protrude downward. Visible light emitted from the light emitting diode 52 in the horizontal direction of the BB cross section is reflected by the reflector 55 and bent downward. The reflector 55 is supported by fitting peripheral edges 55a at both ends of the BB cross section into support grooves 62 formed in the side frame 61a of the casing 61 (see FIG. 7). The control unit 41 is fixed to the upper portion of the reflector 55 via a mounting plate 41b made of an aluminum extruded profile. That is, the control unit 41 and the light emitting unit 51 are supported by the casing 61 through the reflector 55. In other words, the reflector 55 also has a function of supporting the control unit 41 and the light emitting unit 51.

  The reflector 55 is not limited to aluminum or aluminum alloy. For example, a glass reflector in which a metal such as aluminum is deposited on the surface of a glass plate may be used.

  By providing such a reflector 55, when visible light irradiated from the light emitting diode 52 hits the aluminum on the surface of the reflector 55, metal ions, free electrons, etc. existing in a very thin layer on the surface are converted into light energy. Is absorbed to cause resonance vibration, and the energy of the vibration is released from the surface. By providing the reflector 55 made of aluminum or aluminum alloy around the light emitting device, the brightness of the lighting device can be increased and the weight of the lighting device 30 can be reduced.

By the way, in the metal structure of the aluminum alloy plate, depending on its composition, Al—Fe—Si, Mg ₂ Si, Al— (Fe · Mn) —Si crystallized during casting other than the α-Al matrix, There are many very fine precipitates such as intermetallic compounds such as Al ₆ Mn and Mg ₂ Si precipitated during heat treatment such as intermediate annealing. For this reason, when the surface of the aluminum alloy plate is polished, these intermetallic compounds and precipitates exist on the polished surface in addition to the α-Al matrix. Therefore, in the reflector 55 manufactured from the aluminum alloy plate, the surface roughness is increased by polishing. Even if it is made small, since the surface reflectance with respect to visible light of these intermetallic compounds and precipitates is lower than that of α-Al, there is a limit in improving the surface reflectance. Therefore, for example, it is conceivable to manufacture the reflector 55 using a high-purity aluminum plate made of 3NAl (99.9% by mass Al) as a raw material. However, a high-purity aluminum plate is not practical because it is difficult to press-mold and the strength of the reflector 55 is too low although it depends on the plate thickness. In addition, since high-purity aluminum is expensive, if many are used, the cost is greatly increased.

  Therefore, it is even more preferable to use the reflector 55 constituting a clad layer made of an aluminum alloy layer and a high-purity aluminum layer. Specifically, the reflector 55 constituting a cladding layer made of a 3003 alloy layer having a thickness of 1.8 mm and a high-purity aluminum layer having a thickness of 0.2 mm is formed, and the illumination surface side of the high-purity aluminum layer is subjected to CMP (chemical / chemical). Polishing by mechanical polishing). The surface roughness is preferably Ra 0.1 μm or less by polishing, and more preferably, the surface roughness Ra is 0.05 μm or less. Thus, by polishing the illumination surface side of the high-purity aluminum layer to reduce the surface roughness, the reflector 55 with high surface reflectance is obtained. The thickness of the cladding layer is not particularly limited. Any thickness that can be press-molded and can be used as the reflector 55 after molding is acceptable. The number of clad layers is not particularly limited, and may be two layers, three layers, four layers, or more. At least one surface <illumination surface> may be a clad layer made of a high-purity aluminum layer. Further, the thickness of the cladding layer is not particularly limited. It is sufficient that the thickness configuration takes into account the polishing allowance so that the high-purity aluminum layer remains after the predetermined polishing.

  Moreover, the manufacturing method of the reflector 55 and the cladding layer is not limited. For example, the reflector 55 may be formed at the same time as pressing and bonding a plurality of aluminum alloy plates and a high-purity aluminum plate, or a plurality of aluminum alloy slabs and a high-purity aluminum slab are bonded together and hot rolled. The reflector 55 may be formed by manufacturing a clad plate having a predetermined thickness by cold rolling, and further pressing the clad plate.

  The method for polishing the illumination surface is not limited to CMP. Mechanical abrasive polishing using a polishing disk, buffing, or electrolytic polishing may be used. Or the method which combined these polishing methods may be used, and the method of performing these polishing methods simultaneously may be sufficient.

  Thus, the clad layer which arranges the high purity aluminum layer on the illumination surface side is configured, and by adopting the reflector 55 in which the surface of the high purity aluminum layer is polished, the reflector 55 is lightweight and excellent in thermal shock resistance, The surface reflectance is improved and bright illumination can be obtained.

  A cover 56 that covers the light emitting unit 51 and the reflector 55 is provided below the light emitting unit 51. The cover 56 is made of, for example, a resin plate, and a peripheral edge portion 56 a is fitted and supported in a support groove 63 formed in the casing 61. The support groove 63 is formed below the support groove 62 for supporting the reflector 55. A rubber gasket (not shown), for example, is interposed between the peripheral edge portion 56a of the cover 56 and the support groove 63 to ensure waterproofness. The cover 56 may be a colored resin plate containing various pigments, or may be transparent. Furthermore, it is good also as a translucent resin board which makes surface roughness high and scatters visible light on the surface of a resin board.

  As shown in FIGS. 2 and 3, flanges 64 are formed on the upper portions of the pair of side frames 61 a, 61 a of the casing 61 so as to extend on both outer sides in the BB line direction of FIG. 2. The collar part 64 is formed so as to extend in the AA line direction of FIG. On the collar portion 64, a packing 65 having an adhesive layer formed on both upper and lower surfaces is fixed. The lower surface of the packing 65 is bonded to the flange portion 64, and the upper surface of the packing 65 is bonded to the lower surface of the light transmissive plate 10 (see FIG. 1), so that the lighting device 30 is fixed to the lower surface of the light transmissive plate 10. Will be. The packing 65 has a certain thickness and is fixed along the flange 64 with a predetermined interval. As a result, a gap is formed between the solar panel 32 and the light transmissive plate member 10, and air permeability can be secured on the surface of the solar panel 32. As a result, it is possible to prevent dew condensation on the solar panel 32, and therefore, it is possible to eliminate factors that hinder the reception of sunlight.

  In addition, joining of the packing 65, the illuminating device 30, and the light transmissive board | plate material 10 is not restricted to an adhesive agent. For example, as shown in FIG. 8, you may make it fix using the screw 67 or a volt | bolt nut (not shown). In this case, since the screw 67 or the bolt penetrates the light transmissive plate member 10, a rubber packing 68 and a washer 69 are interposed between the head of the screw 67 and the light transmissive plate member 10. To ensure waterproofness.

  Next, the operation of the roof structure with an illumination device 1 having the above-described configuration, the illumination device 30 and the carport roof 2 will be described.

  According to the roof structure with a lighting device 1 and the lighting device 30 having such a configuration, since the light emitting unit 51 of the lighting device 30 is configured by the light emitting diode 52, it operates with direct current and blinks on and off. Resistant to repetition, power consumption can be prevented from increasing extremely during on / off. Therefore, unlike the case where a conventional fluorescent lamp is used, there is no need for inverter control, and it is not necessary to provide a complicated inverter circuit, and the control unit 41 can be downsized and the configuration can be simplified. Furthermore, since the power consumption can be reduced, the light receiving area of the solar panel 32 can be reduced, and the battery 33 can be reduced in size, and the entire lighting device 30 can be greatly reduced in size. In addition, by adopting the light emitting diode 52, the life of the light emitting unit 51 can be extended, and the number of replacements of the light emitting unit 51 can be reduced, so that maintenance work can be reduced.

  On the other hand, since the illuminating device 30 is integrally formed, the illuminating device 30 can be simplified, and it is not necessary to perform wiring on site, and the installation work on the roof structure can be easily performed. In particular, in this embodiment, since it is fixed by adhering to the lower surface of the light transmissive plate member 10 via the packing 65, the labor of installation work can be greatly reduced.

  Furthermore, since the lighting device 30 is disposed below the light-transmitting plate member 10 and the solar panel 32 is disposed so as to face the lower surface of the light-transmitting plate member 10, the lighting device 30 is prevented from getting wet in the rain. Can be prevented. Furthermore, since the light-transmitting plate 10 is formed of a material that transmits at least a part of sunlight, the solar panel 32 facing upward is efficiently used to transmit sunlight transmitted through the light-transmitting plate 10. Light can be received automatically, and the power consumed by the light emitting unit 51 can be reliably ensured.

  Moreover, in this Embodiment, since the light transmissive board | plate material 10 is comprised with the light transmissive resin board 11, the weight of the roof structure body 1 with an illuminating device can be reduced, and it becomes structurally advantageous. Thereby, since the dimensions of the column member 21 and the beam member 22 can be reduced, it is possible to provide the carport roof 2 in which a vehicle can be easily taken in and out even in a narrow installation space.

  On the other hand, when the light transmissive plate member 10 is formed of a light transmissive glass plate, the strength of the light transmissive plate member can be increased. Since an illumination device (not shown) can be installed, illumination can be brightened. Or since the illuminating device 30 formed in plurality can be put together into a large illuminating device, the installation process of an illuminating device can be reduced.

  Since the frame member 20 and the column member 21 are made of extruded shapes of aluminum or aluminum alloy, the entire roof structure 1 with a lighting device can be reduced in weight, and rust resistance can be ensured. it can. In addition, since the extruded shape of aluminum or aluminum alloy has high dimensional accuracy, it is possible to form an accurate frame member 20 and column member 21 without deviation, and easily manufacture a high-precision product even in a small size. be able to. Furthermore, since the surface made of aluminum or aluminum alloy is subjected to an anodized film treatment, the rust resistance can be further enhanced, and the column material 21 and the beam material 22 (frame material 20) can be colored. Therefore, the roof structure with a lighting device excellent in design can be provided.

  In addition, the light emitting unit 51 according to the present embodiment includes a light emitting element in which at least the light emitting layer is a nitride semiconductor, and an inorganic substance that emits fluorescence by absorbing at least part of light emitted from the light emitting element and converting the wavelength. Since the fluorescent material is included, white light can be emitted with a simple configuration, and a long-life and bright illumination device 30 can be provided.

  The lighting device 30 includes a power supply unit 31, a control unit 41, and a light emitting unit 51, each having a solar panel 32 disposed at the top, sequentially arranged from the top. The wiring which connects each member can be shortened, and the size reduction and cost reduction of the illuminating device 30 can be achieved.

  Since the reflector 55 that reflects the light from the light emitting unit 51 is provided around the light emitting unit 51, the visible light from the light emitting unit 51 can be efficiently reflected and irradiated downward. The lighting device 30 that is bright in terms of power consumption can be provided. Further, since the reflector 55 is made of aluminum or an aluminum alloy, the reflector 55 can be reduced in weight and has high visible light reflection efficiency.

  On the other hand, if the reflector 55 has a clad layer made of a high-purity aluminum layer and an aluminum alloy layer, the visible light from the light emitting portion 51 is efficiently reflected even if it is made of a material other than aluminum or aluminum alloy. Can be made.

  Furthermore, if the cladding layer is configured such that the high-purity aluminum layer is disposed on the surface side, and the surface of the high-purity aluminum layer is polished by CMP (chemical / mechanical polishing) to reduce the surface roughness, The surface reflectance of the reflector 55 can be further increased.

  Moreover, since the cover 56 which covers this is provided under the light emission part 51, since the light emission part 51 can be interrupted | blocked from a wind and rain, while being able to generate | occur | produce further lifetime, adjusting the brightness and direction of illumination Can do.

  Furthermore, since the control unit 41 of the lighting device 30 is provided with a light sensor (not shown) that turns on the light emitting unit 51 according to the ambient brightness, the lighting device 30 (the light emitting unit 51) is turned on / off. Off is done automatically. Therefore, it is not necessary to provide a switch for turning on the light emitting unit 51, and the structure of the lighting device 30 can be simplified. Moreover, since unnecessary power consumption can be suppressed, the solar panel 32 and the battery 33 can be further reduced in size.

  Since the illuminating device 30 is fixed to the lower surface of the light transmissive plate member 10, it is possible to prevent the illuminating device 30 from being exposed to wind and rain and to efficiently receive sunlight transmitted through the light transmissive plate member. It is possible to ensure power.

[Second Embodiment]
FIG. 9 is a perspective view showing the second best mode for carrying out the roof structure with a lighting device according to the present invention.

  In this embodiment, a case where the roof structure with a lighting device is used as a waiting space roof will be described as an example. Here, the waiting space means a bus stop or a taxi stand outside the room.

  As illustrated in FIG. 9, the roof structure 1 with a lighting device is used as a waiting space roof 3 and includes a light-transmitting plate member 10, a frame member 20, and a lighting device 30. The waiting space roof 3 is often required to be brighter than the carport roof 2 of FIG. 1, and requires a large lighting device 30.

(Frame material)
The frame member 20 is composed of a beam member 22. The beam member 22 is supported by the column member 21. In the present embodiment, the beam member 22 includes a large beam 24 spanned between adjacent column members 21, a small beam 28 spanned between the parallel large beams 24, and a light transmissive plate member spanned between the large beams 24. 10 and a support member 29 that supports 10. The support member 29 is formed in an arc shape and is disposed so as to be curved above the small beam 28. Support grooves 27 are respectively formed on the side surface of the support member 29 and the upper surface of the large beam 24, and the peripheral portion of the light transmissive plate member 10 is inserted into the support groove 27, and the light transmissive plate member 10 is inserted into the beam member 22. Is supported.

(Light transmissive plate)
The light transmissive plate 10 is made of a light transmissive resin plate or a light transmissive glass plate. The light transmissive plate member 10 is formed to be curved in an arch shape in accordance with the curvature of the support member 29. The materials and components of the light transmissive resin plate and the light transmissive glass plate are the same as those in the first embodiment.

(Lighting device)
The illuminating device 30 has the same configuration as the illuminating device 30 of the first embodiment. In the present embodiment, since the required brightness is brighter than that in the first embodiment, the solar panel 32 is formed larger, and a large number of batteries and light emitting diodes (both not shown) are provided.

  By the way, in this Embodiment, the illuminating device 30 is being fixed to the frame material 20. As shown in FIG. Specifically, a support arm 28 a for fixing the lighting device 30 is fixed to the side surface of the small beam 28. The support arm 28a has flange portions 28b at both ends thereof. The support arm 28 a is fixed to the small beam 28 by abutting one flange portion 28 b against the side surface of the small beam 28 and inserting a bolt (not shown) or the like. The other flange portion 28b is in contact with the casing 61 of the lighting device 30 and a bolt (not shown) or the like is inserted therethrough, so that the lighting device 30 is fixed to the support arm 28a. The illumination device 30 is fixed to both inner sides between the adjacent small beams 28, 28, respectively. The illuminating device 30 has a solar panel 32 facing upward, and is configured to face the lower surface of the light transmissive plate member 10 located above.

  According to the present embodiment, in addition to the operational effects obtained in the first embodiment, the lighting device 30 is fixed to the frame member 20 having a strength higher than that of the light transmissive plate member 10, so that the supportable weight is increased. large. Therefore, it is possible to support the lighting device 30 that is heavier than the first embodiment, and it is possible to secure a large amount of brightness. Thereby, the brightness as the waiting space roof 3 can be sufficiently secured. Moreover, since the illuminating device 30 is provided in the side part of the small beam 28, the solar panel 32 does not become the shadow of the small beam 28, and reception of sunlight is not prevented.

  In addition, in this Embodiment, although this roof structure 1 with a illuminating device is utilized as the waiting space roof 3, even if it uses this as the roof 2 for carports, there is no problem. The form of the waiting space roof 3 is not limited to the present embodiment. For example, a cantilever shape may be used as in the first embodiment. Further, the shape of the roof may be a gable roof shape, a single-flow roof shape, a dormitory roof shape, or the like, and the shape is arbitrary as long as a light-transmitting plate material is provided on the roof surface and sunlight can be taken inward. Further, the outer shape and cross-sectional shape of the frame member 20 and the column member 21 can be freely determined as long as a predetermined strength can be obtained.

[Third embodiment]
FIG. 10 is a perspective view showing the third best mode for carrying out the roof structure with a lighting device according to the present invention, and FIG. 11 is a cross-sectional view showing the lighting device.

  As shown in FIGS. 10 and 11, in the present embodiment, the illumination device 30 ′ is devised to enhance the light collection effect. Note that the illustrated roof structure 1 with a lighting device is a carport roof 2, but the lighting device 30 'of the present embodiment can of course be employed as a waiting space roof.

  As shown in FIG. 11, the lighting device 30 ′ includes a power supply unit 31 having a solar panel 32 provided at the top, a control unit 41, a light emitting unit 51, in a cylindrical casing 61. However, it has the illuminating device main-body part 34 comprised from the top one by one. A battery 33 of the power supply unit 31 is disposed around the control unit 41. Further, a reflector 55 is provided around the light emitting unit 51, and a cover 56 is provided below the reflector 55. The attachment structure of each part of the illuminating device main body 34 is the same as that of the illuminating device 30 of the first embodiment and the second embodiment.

  The illuminating device 30 ′ is provided with a concave mirror 35 that curves upward around the solar panel 32, and the solar light s reflected and collected by the concave mirror 35 is provided above the concave mirror 35 to the solar panel 32. A convex mirror 36 is provided to reflect the light toward the screen. The concave mirror 35 is formed in a circular shape in plan view, is disposed so as to surround the solar panel 32 at the center thereof, and is fixed to the upper end portion of the casing 61 of the illuminating device main body 34. The illuminating device main body 34 and the concave mirror 35 are disposed below the light transmissive plate 10 at a predetermined interval, and the convex mirror 36 is fixed to the lower surface of the light transmissive plate 10. The illuminating device main body 34 is fixed to the frame member 20 via a support arm 28 a fixed to the side surface of the cantilever 25.

  The concave mirror 35 is formed by pressing a plate made of aluminum or aluminum alloy. The concave mirror 35 is not limited to aluminum or aluminum alloy, but may be any mirror that can reflect sunlight s. For example, it may be made of glass in which a metal such as aluminum is vapor-deposited on the surface of a glass plate. The convex mirror 36 is configured by depositing aluminum on the surface of a resin plate having a spherical surface (lower side). The back surface (upper surface) of the convex mirror 36 is in contact with the lower surface of the light transmissive plate 10 and is fixed by an adhesive or the like.

  The concave mirror 35 is formed in a shape such that sunlight s (see FIG. 11) incident on the concave mirror 35 is reflected toward the convex mirror 36. On the other hand, the convex mirror 36 is formed in a shape such that the sunlight s reflected from the concave mirror 35 is reflected toward the solar panel 32. Thereby, in the solar panel 32, the amount of received light per unit area can be greatly increased. As a result, the power generation efficiency of the solar panel 32 can be greatly improved, so that necessary brightness can be ensured, the solar panel 32 can be reduced in size, and the lighting device 30 'can be reduced in weight. .

  An infrared absorbing sheet 37 is attached to the surface of the concave mirror 35. As a result, the concave mirror 35 reflects visible light and ultraviolet rays toward the convex mirror 36, while efficiently absorbing infrared rays, and can prevent the convex mirror 36 and the solar panel 32 from being heated excessively. Further, if the concave mirror 35 is formed of a material having high thermal conductivity such as aluminum or aluminum alloy, the absorbed infrared heat energy h can be radiated from the back surface (lower surface) of the concave mirror 35, and the illumination device main body 34. Can be prevented from being heated excessively. The infrared absorbing sheet may be provided on the convex mirror 36. According to this, excessive heating of the solar panel 32 can be prevented. However, in consideration of the heat dissipation efficiency of the absorbed infrared h, the infrared absorbing sheet is preferably attached to the concave mirror 35.

  In the present embodiment, the light receiving efficiency of the solar panel 32 is improved by the configuration as described above. However, the light receiving efficiency can be improved even by the illumination device 30 ″ as shown in FIG.

  As shown in FIG. 12, the illuminating device 30 ″ has an illuminating device main body 34 fixed to the beam member 22 via a support arm 28a, similarly to the illuminating device 30 ′ of the third embodiment. The illuminating device main body 34 is disposed at a predetermined interval below the light transmissive plate 10. A Fresnel lens 38 is provided at a position above the illuminating device main body 34 of the light transmissive plate 10. 12A, the Fresnel lens 38 is fixed to the upper surface of the light transmissive plate 10. The Fresnel lens 38 subdivides the curved surface portion of a normal convex lens into concentric circles. 12B, a plurality of concentric circles are formed in a plan view as shown in Fig. 12. The Fresnel lens 38 in Fig. 12 is formed on the light-transmitting plate 10. Abutting surface (bottom ) Is formed flat, and an adhesive or the like is applied to the flat surface and fixed to the light transmissive plate 10. The Fresnel lens 38 is made of a plastic resin such as acrylic resin, polycarbonate, or high-density polyethylene. It is configured and formed by injection molding, pressing, etc. The Fresnel lens 38 can be formed of glass in addition to plastic resin.

  An infrared absorption sheet 37 is laid on the flat surface side of the Fresnel lens 38. Specifically, the infrared ray absorbing sheet 37 is attached to the lower surface of the light transmissive plate 10 at the position where the Fresnel lens 38 is fixed.

  As described above, by disposing the Fresnel lens 38 above the lighting device main body 34, the sunlight s over a wide range corresponding to the area of the Fresnel lens 38 is efficiently condensed to the solar panel 32. Can be irradiated. Further, by adopting the Fresnel lens 38, it is possible to obtain a light collecting function comparable to that of a large convex lens and to reduce the thickness of the lens, thereby achieving a significant reduction in weight. Further, since the Fresnel lens 38 can form a bright lens, the loss of visible light and ultraviolet rays that are transmitted can be minimized, and the power generation efficiency of the solar panel 32 can be increased. Furthermore, if the Fresnel lens 38 is formed of an acrylic resin, it is possible to provide the Fresnel lens 38 that has excellent weather resistance and does not discolor or deform even when installed outdoors. Further, since the Fresnel lens 38 is provided on the upper surface of the light-transmitting plate member 10, it is possible to easily perform the bonding work.

  Furthermore, by providing the infrared ray absorbing sheet 37, it is possible to efficiently absorb infrared rays with the light transmissive plate member 10 and prevent the solar panel 32 from being heated excessively. The installation position of the infrared absorbing sheet 37 is not limited to the lower surface of the light transmissive plate material 10, and may be between the light transmissive plate material 10 and the Fresnel lens 38 on the upper surface of the light transmissive plate material 10. Good.

  The Fresnel lens 38 may be fixed to the lower surface of the light transmissive plate 10 as shown in FIG. In this case, the infrared absorbing sheet 37 is attached to the upper surface of the light transmissive plate 10. Even with such a configuration, as in the configuration of FIG. 12, a light collecting function can be obtained, and power generation efficiency can be increased. Further, in the configuration of FIG. 13, since the Fresnel lens 38 faces downward, it is possible to obtain an operational effect that dust, rainwater and the like are not easily collected.

  The Fresnel lens 38 in FIGS. 12 and 13 has a circular shape in plan view. However, as shown in FIG. 14, a condensing lens 39 having an elliptical shape in plan view in which an intermediate portion of the Fresnel lens is linearly extended is used. Also good. According to this, sunlight can be efficiently condensed toward the illumination device having the rectangular solar panel 32 (the outer shape is indicated by a broken line in FIG. 14).

  Although the best mode for carrying out the present invention has been described above, the present invention is not limited to the above-described embodiment, and can be appropriately changed in design without departing from the spirit of the present invention. For example, the frame member 20, the column member 21 and the reflector 55 of the present invention are not limited to those made of aluminum or aluminum alloy, but may be steel, stainless steel, titanium, copper, wood, etc. as long as they have the necessary strength. Of course, this material can be applied.

  In the embodiment, the lighting device 30 is attached to the light transmissive plate member 10 or the beam member 22, but may be fixed to the column member 21. In this case, if the light transmissive plate member 10 is provided between the column members 21, the lighting device 30 can be prevented from being exposed to wind and rain.

  Furthermore, in the said embodiment, although the frame material 20 is supported by the pillar material 21, it is not restricted to this, For example, the frame material 20 is directly fixed to the wall surface etc. of an adjacent structure. Also good.

  Moreover, it cannot be overemphasized that the roof structure 1 with a illuminating device which concerns on this invention is not restricted to utilizing as the roof 2 for carports, or the roof 3 for waiting spaces. For example, it can be used at a resting place in a park or a terrace of a house.

It is the perspective view which showed the best 1st form for implementing the roof structure with a illuminating device which concerns on this invention, Comprising: The state which utilized the roof structure with a illuminating device as a roof for carports is shown. It is the top view which showed the illuminating device which concerns on this invention. It is the side view which showed the illuminating device which concerns on this invention. It is the side view which showed the illuminating device which concerns on this invention. It is the bottom view which showed the inside of the illuminating device which concerns on this invention. It is the sectional view on the AA line of FIG. FIG. 3 is a sectional view taken along line BB in FIG. 2. It is sectional drawing which showed the attachment structure to the light transmissive board | plate material of an illuminating device. It is the perspective view which showed the best 2nd form for implementing the roof structure with a illuminating device which concerns on this invention, Comprising: The state which utilized the roof structure with a illuminating device as a roof for waiting spaces is shown. It is the perspective view which showed the best 3rd form for implementing the roof structure with a illuminating device which concerns on this invention, Comprising: The state which utilized the roof structure with a illuminating device as a roof for carports is shown. It is sectional drawing which showed the illuminating device which concerns on this invention. (A) is sectional drawing which showed the other illuminating device which concerns on this invention, (b) is the top view which showed the Fresnel lens. It is sectional drawing which showed the other illuminating device which concerns on this invention. (A) which showed the condensing lens of another shape was a top view, (b) is sectional drawing.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Roof structure with illuminating device 2 Roof for carport 3 Roof for waiting space 10 Light transmissive plate material 11 Light transmissive resin plate 20 Frame-material 30 Lighting device 30 'Lighting device 30 "Lighting device 31 Power supply unit 32 Solar panel 33 Battery 35 Concave mirror 36 Convex mirror 37 Infrared absorbing sheet 38 Fresnel lens 41 Control unit 51 Light emitting unit 52 Light emitting diode 55 Reflector 56 Cover

Claims (26)

A roof structure with a lighting device comprising a light transmissive plate, a frame material supporting the light transmissive plate, and a lighting device,
The lighting device includes a solar panel that converts solar energy into electrical energy, and a power supply unit that includes a battery that stores electrical energy converted by the solar panel, and
A control unit for controlling power supply from the battery;
It has a light-emitting part composed of light-emitting diodes that are lit with power supplied from the battery,
The solar panel is disposed so as to face the lower surface of the light transmissive plate member. The roof structure with a lighting device according to claim 1, wherein the light transmissive plate member is formed of a material that transmits at least part of sunlight. The roof structure with a lighting device according to claim 1 or 2, wherein the light transmissive plate member is formed of a light transmissive resin plate. The roof structure with a lighting device according to claim 1 or 2, wherein the light transmissive plate member is formed of a light transmissive glass plate. The said frame material is comprised by the extruded shape member made from aluminum or aluminum alloy. The roof structure with a illuminating device of any one of Claim 1 thru | or 4 characterized by the above-mentioned. The roof structure with a lighting device according to claim 5, wherein the extruded shape member is subjected to an anodic oxide film treatment on a surface thereof. The light emitting unit includes a light emitting element in which at least a light emitting layer is a nitride semiconductor, and an inorganic phosphor that emits fluorescence by absorbing at least part of light emitted from the light emitting element and converting the wavelength. The roof structure with a lighting device according to any one of claims 1 to 6. 8. The lighting device according to claim 1, wherein the power supply unit, the control unit, and the light-emitting unit having the solar panel disposed at the top are sequentially arranged from the top. A roof structure with a lighting device according to claim 1. The roof structure with a lighting device according to any one of claims 1 to 8, wherein a reflector that reflects light from the light emitting unit is provided around the light emitting unit. The roof structure with a lighting device according to claim 9, wherein the reflector is made of aluminum or an aluminum alloy. The roof structure with a lighting device according to claim 9 or 10, wherein the reflector has a clad layer made of a high-purity aluminum layer and an aluminum alloy layer. The cladding layer has a high-purity aluminum layer disposed on the surface side,
The roof structure with a lighting device according to claim 11, wherein the surface of the high-purity aluminum layer is polished to reduce its surface roughness. A concave mirror that curves upward is provided around the solar panel,
The convex mirror for reflecting the sunlight reflected and condensed by the concave mirror toward the solar panel is provided above the concave mirror. The roof structure with a lighting device as described. The roof structure with a lighting device according to claim 13, wherein the concave mirror is made of aluminum or an aluminum alloy. The roof structure with a lighting device according to claim 13 or 14, wherein an infrared absorbing sheet is attached to a surface of the concave mirror. The solar panel and the concave mirror are arranged at a predetermined interval below the light transmissive plate,
The roof structure with a lighting device according to any one of claims 13 to 15, wherein the convex mirror is fixed to a lower surface of the light transmissive plate member. The roof structure with a lighting device according to any one of claims 1 to 12, wherein a Fresnel lens for concentrating sunlight on the solar panel is provided above the solar panel. body. The Fresnel lens is fixed to the upper surface or the lower surface of the light transmissive plate material,
The roof structure with a lighting device according to claim 17, wherein the solar panel is disposed below the light-transmitting plate member with a predetermined interval. The roof structure with a lighting device according to claim 17 or 18, wherein an infrared ray absorbing sheet is laid on a flat surface side of the Fresnel lens. The roof structure with a lighting device according to any one of claims 1 to 19, wherein a cover that covers the light emitting unit is provided below the light emitting unit. The roof structure with a lighting device according to any one of claims 1 to 20, wherein the lighting device is provided with a light sensor that turns on a light emitting unit according to ambient brightness. The roof structure with a lighting device according to any one of claims 1 to 21, wherein the lighting device is fixed to the light-transmitting plate member. The roof structure with a lighting device according to any one of claims 1 to 21, wherein the lighting device is fixed to the frame member. The roof for carports using the roof structure with an illuminating device of any one of Claim 1 thru | or 23. The roof for waiting spaces characterized by using the roof structure with a illuminating device of any one of Claim 1 thru | or 23. A power supply unit comprising a solar panel for converting solar energy into electric energy, and a battery for storing electric energy converted by the solar panel;
A control unit for controlling power supply from the battery;
An illuminating device comprising a light emitting unit that is lit by power supplied from the battery.

Images