JP5708434B2 - ROOF STRUCTURE WITH LIGHTING DEVICE AND CARPORT ROOF AND WAITING SPACE ROOF USING THE SAME - Google Patents

Description

  The present invention relates to a roof structure with a lighting device, and a carport roof and a waiting space roof 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. doing. In this roof structure, polycarbonate colored on a light-transmitting plate is generally used. In particular, when a transparent light-transmitting plate is used, a landscape can be seen from above and 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 after the fluorescent lamp is turned on, the output of the inverter is set to a high frequency. And configured to be an alternating current with a low duty ratio. According to this, since the storage battery can be used in a region 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 a fluorescent lamp is also required, since power consumption is large and a storage battery will enlarge, the further size reduction of the storage battery was needed.

  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, it takes time and labor to attach each member separately, and to connect each member. Moreover, since the solar panel is installed on the roof, there is a problem that it is deteriorated in a short time by being exposed to wind and rain.

  Furthermore, in order to increase the illuminance of the lighting device, it is also desired to increase the amount of power generated by solar power generation.

  Therefore, the present invention has been devised to solve the above-mentioned problems, and the structure of the lighting device can be simplified and downsized, and the amount of power generated by photovoltaic power generation is large and installation work can be easily performed. It is an object of the present invention to provide a roof structure with a lighting device that can perform the above, a carport roof and a waiting space roof using the same.

The invention according to claim 1 for solving the problem includes a light-transmitting plate, a frame that supports the light-transmitting plate, a solar panel that converts solar energy into electric energy, and a lighting device. The roof structure with a lighting device, wherein the light-transmitting plate material includes only a curved portion that protrudes upward, and the solar panel can follow the shape of the light-transmitting plate material and The lighting device is laid on the lower surface of the light-transmitting plate, and the lighting device includes a power supply unit including a battery that stores electric energy converted by the solar panel, and a light emitting diode that is lit by direct-current power supplied from the battery. and configured light emitting portion and provided in the illumination device integral casing constituting an outer shell of said frame member is anodized film processing is performed on the surface of aluminum Or an illumination device with the roof structure, characterized in that is composed of an aluminum alloy extruded shape.

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 there is no need to provide a complicated inverter circuit, so that the configuration can be simplified. Furthermore, since the power consumption can be reduced, the battery can be reduced in size, and the entire 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 lighting device is integrally formed, wiring on site is only required between the solar panel and the lighting device, and the installation work on the roof structure can be easily performed. Furthermore, since the solar panel is disposed so as to face the lower surface of the light-transmitting plate material, the solar panel can be prevented from being exposed to wind and rain, and the deterioration of the solar panel can be delayed. In addition, sunlight that has passed through the light-transmitting plate material can be received efficiently by the solar panel, and a large-area solar panel can be installed, so that a large amount of power consumed by the light emitting unit can be secured. The illuminance of the lighting device can be increased. In addition, the solar panel can be easily fixed to the light transmissive plate material, the installation space (thickness) of the solar panel can be reduced, and a large space under the light transmissive plate material can be secured. Further, the solar panel can be laid along a curved light-transmitting plate. Further, the roof structure can be reduced in weight and rust resistance can be ensured. Furthermore, since the rust resistance performance of the frame material can be further enhanced and coloring is possible, a roof structure with a lighting device that is excellent in design can be provided.

The invention according to claim 2, wherein the light-transmitting plate material, is the illumination device with the roof structure according to claim 1, characterized in that it is formed by a material that transmits at least part of the sunlight .

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

The invention according to claim 3, wherein the light-transmitting plate material, an illumination device with the roof structural member according to claim 1 or claim 2, characterized in that it is constituted by a light transmitting 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 invention according to claim 4 is the roof structure with a lighting device according to claim 1 or 2 , wherein the light-transmitting plate member is formed of a light-transmitting glass plate.

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

According to a fifth aspect of the present invention, the light emitting unit 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 It has a fluorescent substance, It is a roof structure body with an illuminating device of any one of the Claims 1 thru | or 4 characterized by the above-mentioned.

  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.

The invention according to claim 6 is the roof with a lighting device according to any one of claims 1 to 5 , wherein the power supply unit of the lighting device is disposed above the light emitting unit. It is a structure.

  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 invention according to claim 7, around the light emitting portion, the lighting apparatus according to any one of claims 1 to 6, characterized in that a reflector for reflecting the light from the light emitting portion It is a roof structure with a roof.

  According to such a structure, the illumination light from a light emission part can be efficiently irradiated below, and an illuminating device with high illumination efficiency can be provided.

The invention according to claim 8 is the roof structure with a lighting device according to claim 7 , wherein 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 invention according to claim 9 is the roof structure with a lighting device according to claim 7 or 8 , wherein 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.

The invention according to claim 10 is characterized in that the cladding layer has a high-purity aluminum layer disposed on the surface side, and the surface of the high-purity aluminum layer is polished to reduce its surface roughness. 9. The roof structure with a lighting device according to 9 .

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

The invention according to claim 11, the upper portion of the light emitting portion, according to any one of claims 1 to 10, characterized in that a heat dissipating member for dissipating heat generated by the light emitting portion It is a roof structure with a lighting device.

  According to such a configuration, heat generated from the light emitting diode (light emitting unit) can be efficiently radiated to the surroundings.

Invention, the heat radiating member, and the substrate in contact with the light emitting portion, an illumination device equipped with roof construction according to claim 11, characterized in that a radiation fin attached to the substrate according to claim 12 Is the body.

  According to such a configuration, the heat from the light emitting unit can be radiated to the surroundings more efficiently through the radiation fins.

The invention according to claim 13 is the roof structure with a lighting device according to claim 11 or 12 , wherein the heat dissipation member is formed of copper or a copper alloy.

  According to such a configuration, heat from the light emitting unit can be efficiently absorbed and radiated to the surroundings.

The invention according to claim 14, wherein the substrate is formed of copper or a copper alloy, the heat radiating fins, a covered lighting device according to claim 12, characterized in that it is formed of aluminum or an aluminum alloy It is a structure.

  According to such a configuration, the heat from the light emitting unit can be efficiently radiated to the surroundings while reducing the weight of the heat radiating member.

Invention, the casing constituting the outer shell of the lighting device, any one of claims 1 to 14, characterized in that a vent for circulating air inside of the claim 15 It is a roof structure with an illuminating device.

  According to such a configuration, the inside of the lighting device can be ventilated, and the temperature rise inside the lighting device can be prevented.

The invention according to claim 16, wherein the ventilation opening, at least is a pair provided on the wall surface of the casing, which are opposite to each other, at least one of the pair of the air vent according to claim 15, characterized in that a fan It is a roof structure with an illuminating device.

  According to such a structure, the air inside an illuminating device can be forced to distribute | circulate and the temperature rise inside an illuminating device can be prevented reliably.

The invention according to claim 17 is a roof structure with a lighting device, comprising: a light transmissive plate material; a frame material that supports the light transmissive plate material; a solar panel that converts solar energy into electric energy; and a lighting device. The light-transmitting plate member is provided with only a curved portion that protrudes upward, and the lighting device is supplied from the battery with a power supply unit that includes a battery that stores electrical energy converted by the solar panel. And a light emitting part composed of light emitting diodes that are lit with electric power, and the solar panel is laid on the lower surface so as to face the lower surface of the light transmissive plate, A light transmitting resin sheet containing a phosphor is attached to the light transmissive plate at the position where the solar panel is installed.

  According to such a configuration, light in the near-ultraviolet region can be converted into visible light out of sunlight transmitted through the light-transmitting plate material, and power generation efficiency (energy conversion efficiency) by the solar panel can be improved. it can.

According to an eighteenth aspect of the present invention, there is provided a roof structure with a lighting device, comprising: a light transmissive plate material; a frame material that supports the light transmissive plate material; a solar panel that converts solar energy into electric energy; and a lighting device. The light-transmitting plate member is provided with only a curved portion that protrudes upward, and the lighting device is supplied from the battery with a power supply unit that includes a battery that stores electrical energy converted by the solar panel. And a light emitting part composed of light emitting diodes that are lit with electric power, and the solar panel is laid on the lower surface so as to face the lower surface of the light transmissive plate, A prism sheet for concentrating sunlight on the solar panel is affixed to the light transmissive plate at the position where the solar panel is installed. A roof structure.

  According to such a configuration, it is possible to prevent sunlight from being totally reflected on the upper surface of the light-transmitting plate material, and it is possible to increase the utilization efficiency of solar energy.

The invention according to claim 19 is characterized in that a cover for covering the light emitting part is provided below the light emitting part, and the roof structure with a lighting device according to any one of claims 1 to 18. It is.

  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 invention according to claim 20, in the lighting device, according to any one of claims 1 to 19, characterized in that a light sensor to light the light emitting portion in accordance with the ambient brightness It is a roof structure with a lighting device.

  According to such a configuration, since the lighting device is automatically turned on and off according to the ambient brightness, it is not necessary to provide a switch. In addition, since unnecessary power consumption can be suppressed, the lighting device can be further reduced in size.

The invention according to claim 21 is the roof structure with illumination device according to any one of claims 1 to 20 , wherein the illumination 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.

The invention according to claim 22 is the roof structure with illumination device according to any one of claims 1 to 20 , wherein the illumination 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 23 is a carport roof characterized by using the roof structure with a lighting device according to any one of claims 1 to 22 .

  According to such a configuration, the structure of the lighting device can be simplified and downsized, and a carport roof that can be easily installed and has a large power generation capacity can be provided.

The invention according to claim 24 is a waiting space roof characterized by using the roof structure with a lighting device according to any one of claims 1 to 22 .

  Here, the waiting space means a bus stop or a taxi stand outside the room. According to the above-described configuration, the structure can be simplified and downsized, the installation work can be easily performed, and a waiting space roof having a large power generation capacity can be provided.

  According to the present invention, it is possible to simplify and reduce the size of the structure of the lighting device, to produce an excellent effect that the amount of power generated by solar power generation is large and installation work can be easily performed.

It is the perspective view which showed the 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 of the roof structure with an illuminating device which concerns on this invention. It is the side view which showed the illuminating device of the roof structure with an illuminating device which concerns on this invention. It is the side view which showed the illuminating device of the roof structure with an illuminating device which concerns on this invention. It is the bottom view which showed the inside of the illuminating device of the roof structure with a 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 B-B in FIG. 2. It is the perspective view which showed the heat radiating member of the roof structure with a illuminating device which concerns on this invention. It is the perspective view which showed the attachment state to the light transmissive board | plate material of an illuminating device. It is the perspective view which showed the 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.

[First embodiment]
A first embodiment for implementing 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 first embodiment for carrying out a roof structure with a lighting device according to the present invention, FIG. 2 is a top view showing the lighting device of the roof structure with a lighting device according to the present invention, 3 is a side view showing a lighting device for a roof structure with a lighting device according to the present invention, FIG. 4 is a side view showing a lighting device for a roof structure with a lighting device according to the present invention, and FIG. The bottom view which showed the inside of the illuminating device of the roof structure with a illuminating device which concerns, FIG. 6 is AA sectional view taken on the line of FIG. 2, FIG. 7 is BB sectional drawing of FIG. 2, FIG. It is the perspective view which showed the heat radiating member of the roof structure with a illuminating device which concerns.

  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 and a frame member 20 that supports the light-transmitting plate member 10. And a solar panel 70 that converts solar energy into electrical energy, and a lighting device 30 that is lit by the electric power generated by the solar panel 70.

(Light transmissive plate)
The light transmissive plate member 10 is formed, for example, in a substantially rectangular shape, and the peripheral portion thereof is supported by the frame member 20 to constitute the roof surface of the roof structure 1 with a lighting device. 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, a light transmissive resin plate 11 or a light transmissive glass plate (not shown) (this embodiment). In this embodiment, a light transmissive 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 particularly, a resin excellent in strength and weather resistance such as polycarbonate and acrylic resin is preferable. 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 the light absorption characteristics is “electron transition absorption” that occurs in the visible light / 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 aforementioned resin materials such as polycarbonate, polystyrene, and acrylic resin transmit most of sunlight in the visible light region.

As shown in FIG. 1, when the light-transmitting plate member 10 is a light-transmitting glass plate, the configuration is as follows. 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. The light transmissive glass plate is particularly preferably white plate glass. White plate glass can efficiently transmit light in a region from near ultraviolet (wavelength: 320 nm) to near infrared (wavelength: 2.5 μm).

  A light transmissive resin sheet 12 containing a phosphor is attached to the light transmissive plate 10 at the position where the solar panel 70 is laid. Note that the light transmissive resin sheet 12 may also be attached to a portion of the light transmissive plate 10 where the solar panel 70 is not laid. The light transmissive resin sheet 12 is attached to the upper surface or the lower surface (the upper surface in the present embodiment) of the light transmissive plate 10. Although not shown, when the light transmissive resin sheet 12 is attached to the lower surface of the light transmissive plate member 10, the solar panel 70 is further laid on the lower surface of the light transmissive resin sheet 12.

The light transmissive resin sheet 12 includes a base material such as a light transmissive resin plate, and the base material contains an inorganic phosphor. This light-transmitting resin sheet 12 converts light in the ultraviolet region into light in the visible light region, and there are materials that emit light in white, blue, green, red, and the like. For example, as an inorganic phosphor that emits white light, calcium phosphate (3Ca ₃ (PO ₄ ) ₂ .Sb) and the like can be given. Inorganic phosphors can be used as mixed phosphors by mixing those emitting light of each color. The light-transmitting resin sheet 12 is formed by mixing an appropriate amount of an inorganic phosphor with the raw material of the light-transmitting resin plate and molding it.

(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. In the present embodiment, the cantilever beam 25 has a shape that curves downward as it approaches the tip. Note that this curved shape is an example, and any shape may be used. 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).

(solar panel)
The solar panel 70 is configured to emit electrons by applying sunlight to a semiconductor and generate electricity by taking the electrons out. As shown in FIG. 1, the solar panel 70 is provided so that the light receiving surface thereof faces the lower surface of the light transmissive plate member 10 (opposite to the direction in which the sun is positioned). In particular, in the present embodiment, the solar panel 70 is laid so that the light receiving surface (the upper side surface of the solar panel 70) is along the lower surface of the light transmissive plate member 10. The solar panel 70 is configured by a deformable flexible solar panel 71 (flexible panel), and can follow the shape of the curved light transmissive plate 10.

  Examples of the silicon-based semiconductor material used for the solar panel 70 include a single-crystal Si-based (c-Si) thin film, a polycrystalline Si-based (poly-Si) thin film, an amorphous Si-based (a-SiC: H) thin film, and an amorphous material. Examples thereof include SiGe-based (a-SiGe: H) thin films. In recent years, solar cells using compound semiconductors and dye-sensitized solar cells are being put into practical use in addition to the solar cells having the above structure.

The flexible solar panel 71 of the present embodiment includes a transparent resin sheet with high heat resistance, and is manufactured by forming various amorphous thin films on the transparent resin sheet by a plasma CVD method. Here, the manufacturing method of an a-Si: H thin film is demonstrated as an example. Using hydrogen (H ₂ ) and silane gas (SiH ₄ ) as raw materials, this gas is introduced into a plasma CVD apparatus and a high frequency voltage is applied. As a result, a gas in which silane gas and hydrogen are decomposed, so-called plasma, is generated between the electrodes. Then, chemical species in the plasma are deposited on the substrate to produce an amorphous silicon thin film. More specifically, on a transparent resin substrate such as polyimide with transparent and low resistance SnO ₂ or the like formed on a transparent resin substrate, an amorphous silicon p-type semiconductor layer, i-type semiconductor layer, n-type is formed by plasma CVD. Semiconductor layers are sequentially deposited. When diborane (B ₂ H ₆ ), phosphine (PH ₃ ), or the like is mixed with the raw material silane, boron (B) or phosphorus (P) can be doped into the thin film, and p-type and n-type, respectively. A-Si: H thin film is obtained. Finally, a second transparent electrode is formed from a metal such as aluminum. In the production of the a-SiC: H thin film, methane (CH ₄ ) is further required as a raw material gas, and in the production of the a-SiGe: H thin film, germanium hydride (GeH ₄ ) is further required as a raw material gas. It becomes.

By the way, the energy density of sunlight is about 1 kW per 1 m ^{2 in the} daytime. When the energy conversion efficiency of the solar panel 70 is 10%, the power generation capacity of the solar panel 70 is about 100 W per 1 m ² . The transmittance of the light-transmitting plate with respect to sunlight is not necessarily 100%, but is a value that decreases depending on the material. Depending on the incident angle of sunlight to the light-transmitting plate material 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 70 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 .

In manufacturing a film-type dye-sensitized solar cell, a transparent resin film can be sent out by a roll and, for example, a TiO ₂ paste printing dyeing process and a laminating process can be continuously performed. As a result, a low-cost flexible solar panel may be provided in the future.

  The flexible solar panel 71 is affixed to the light-transmitting plate member 10 via an adhesive. The adhesive is made of, for example, ethylene vinyl acetate (EVA). When the flexible solar panel 71 is attached to the light transmissive plate member 10, an adhesive is applied to the entire surface of the flexible solar panel 71, and is then brought into contact with the lower surface of the light transmissive plate member 10.

(Lighting device)
As illustrated in FIGS. 6 and 7, the lighting device 30 includes a power supply unit 31 including a battery 33 that stores electrical energy converted by the solar panel 70 (flexible solar panel 71) illustrated in FIG. 1, and electric power from the battery 33. A control unit 41 that controls supply and a light-emitting unit 51 that includes a light-emitting diode 52 that is lit by power supplied from the battery 33 are integrally provided. The lighting device 30 has a casing 61 that forms an outer shell thereof, and a control unit 41, a power supply unit 31, and a light emitting unit 51 are provided in the casing 61. The power supply unit 31 is arranged on the light emitting unit 51 (on the side where the sun is located). The casing 61 includes a pair of side frames 61a and 61a (see also FIG. 3) located on the left and right sides in FIG. 7, and a pair of end covers 61b and 61b located on the left and right sides (the front and back direction in FIG. 7). (See also FIG. 4). The side frame 61a is made of an extruded shape made of aluminum or aluminum alloy, and is configured to integrally support a reflector 55 and a cover 56 described later. 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 in FIGS. 6 and 7, the battery 33 of the power supply unit 31 is disposed below the control unit 41 and on the side of a heat radiating member 72 described later. 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 leave 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 a solar cell (not shown) of the solar panel 70. The battery 33 is charged with electricity generated by each solar cell, and emits light during a time zone that requires lighting such as nighttime. It operates as a power source for the unit 51.

<Control part>
As shown in FIGS. 6 and 7, the control unit 41 is disposed above the lighting device 30 and above the battery 33 and 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. The optical sensor is provided, for example, at a position on the lower surface of the illumination device 30 that does not interfere with illumination of the light emitting unit 51.

<Light emitting part>
As shown in FIGS. 6 and 7, 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 FIGS. 5 to 7, a plurality of light emitting diodes 52 are linearly arranged at a predetermined interval.

  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 the inorganic phosphor that emits white light include 3Ca ₃ (PO ₄ ) ₂ .Ca (F, Cl) ₂ : Sb. 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). Thus, the surface roughness is reduced. As shown in FIG. 7, the reflector 55 is formed with a concave strip portion whose center portion is recessed upward 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 irradiated in the horizontal direction from the light emitting diode 52 is reflected by the reflector 55 and bent downward. The reflector 55 is supported by fitting peripheral edges 55a at both ends into support grooves 62 formed in the side frame 61a of the casing 61 (see FIG. 7).

  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. At least the thickness may be determined in consideration of the polishing allowance so that the high-purity aluminum layer remains after 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.

  As shown in FIGS. 6 to 8, a heat dissipating member 72 that dissipates heat generated in the light emitting unit 51 into the air is provided on the reflector 55 above the light emitting unit 51. The heat dissipating member 72 includes a substrate 73 that is in contact with and joined to the reflector 55 of the light emitting unit 51, and heat dissipating fins 74 attached to the substrate 73. The radiating fins 74 are arranged and erected so as to extend in a direction orthogonal to the arrangement direction of the light emitting diodes 52 (the front and back direction in FIG. 6), and the arrangement direction of the light emitting diodes 52 (left and right in FIG. 6). A plurality of lines are arranged in parallel at a predetermined interval in the direction). The substrate 73 is made of copper or a copper alloy, and the heat radiating fins 74 are made of aluminum or an aluminum alloy. When attaching the heat radiating fins 74 made of aluminum or aluminum alloy to the substrate 73 made of copper or copper alloy, the heat radiating fins 74 are brought into contact with and fixed to the surface of the substrate 73, and the circumferential direction is started from the back surface of the substrate 73. Press the circumferential surface of the rotating disk-shaped welding tool. That is, the radiating fins 74 are bonded to the substrate 73 by frictional vibration bonding (Friction Acoustic Bonding).

  As shown in FIGS. 3, 6, and 7, the casing 61 constituting the outer shell of the lighting device 30 is provided with a ventilation port 67 for circulating the air inside. A pair of ventilation ports 67 are provided on the wall surfaces of the casing 61 facing each other (in the present embodiment, the side frames 61a and 61a). The pair of ventilation ports 67 and 67 are disposed at a height corresponding to the heat radiating member 72, and are formed at both ends in the extending direction of the heat radiating fins 74. Thereby, air becomes easy to flow along the extending direction of the radiation fin 74, and the heat radiation efficiency is improved. Further, since the heat radiation fins 74 extend in a direction orthogonal to the arrangement direction of the light emitting diodes 52, air flows in a direction orthogonal to the arrangement direction of the light emitting diodes 52. Note that at least one pair of ventilation ports 67 may be provided in the side frames 61a and 61a facing each other, and a plurality of pairs may be provided, or a different number may be provided in the opposite side frames 61a and 61a.

  At least one of the pair of ventilation ports 67 and 67 (both in the present embodiment) is provided with fans 68 and 68 for forcibly circulating the internal air. One of these fans 68 and 68 is an intake fan and the other is an exhaust fan, so that the air inside the casing 61 is efficiently ventilated. When a large number of ventilation openings are provided, the fans may be provided in all the ventilation openings or may be provided selectively.

  As shown in FIGS. 6 and 7, 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. In this Embodiment, as shown in FIG. 1, the solar panel 70 is being fixed to the lower surface of the light transmissive board | plate material 10 which is not installed. 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 lighting device 30 and the light transmissive plate member 10, and air permeability can be secured on the surface of the lighting device 30. Thereby, the dew condensation on the illuminating device 30 can be prevented, and rust prevention performance can be improved.

  In addition, as shown in FIG. 9, you may make it fix the illuminating device 30 to the light transmissive board | plate material 10 in which the solar panel 70 was laid. In this case, an opening 75 is formed at a position corresponding to the packing 65 of the lighting device 30 to expose the lower surface of the light transmissive plate 10. And the packing 65 is fixed to the lower surface of the exposed light-transmitting plate 10 with an adhesive.

  Moreover, 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, you may make it fix using a screw | thread (not shown) or a volt | bolt nut (not shown). In this case, since the screw or bolt penetrates the light-transmitting plate member 10, a rubber packing and washer are interposed between the screw head and the light-transmitting plate member 10 to provide waterproofness. It is preferable to ensure.

  Next, the operation of the roof structure 1 with a lighting device and the roof 2 for a carport having the above-described configuration will be described.

  According to the roof structure with a lighting device 1 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 is resistant to repeated on / off flashing, It is possible to prevent an excessive increase in power consumption during on / off. Therefore, unlike the case where a conventional fluorescent lamp is used, there is no need for inverter control, and there is no need to provide a complicated inverter circuit, so that the control unit 41 can be downsized and the configuration can be simplified. Further, since the power consumption can be reduced, the battery 33 can be downsized, and the entire lighting device 30 can be downsized. 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. Furthermore, in the present invention, since the solar panel 70 is laid on the lower surface of the light transmissive plate member 10, a large light receiving area can be obtained. Therefore, a large amount of power generation can be obtained, and the light emitting diode 52 can emit light with a small amount of power, so that illumination with a very large illuminance can be provided for a long time.

  On the other hand, since the illumination device 30 is integrally formed, the illumination device 30 can be simplified and downsized. Furthermore, since the wiring at the site is only required between the solar panel 70 and the lighting device 30, installation work of the solar panel 70 and the lighting device 30 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 further reduced.

  Moreover, in this invention, since the solar panel 70 is arrange | positioned so as to oppose the lower surface of the light transmissive board | plate material 10, it can prevent that the solar panel 70 is exposed to a wind and rain, and delays deterioration of the solar panel 70. Can do. Furthermore, since the light transmissive plate member 10 is formed of a material that transmits at least a part of sunlight, the solar panel 70 can efficiently receive sunlight transmitted through the light transmissive plate member 10. The power consumed by the light emitting unit 51 can be reliably ensured. Furthermore, since the solar panel 70 can ensure a large light receiving area, the power generation amount can be significantly increased.

  Furthermore, since the light transmissive resin sheet 12 containing the phosphor is affixed to the light transmissive plate 10 at the position where the solar panel 70 is laid, light in the ultraviolet region of the sunlight by the phosphor. Can be converted into light in the visible light region and irradiated to the solar panel 70. Thereby, efficient energy conversion can be performed and the amount of power generation in the solar panel 70 can be increased.

  Further, since the solar panel 70 is laid on the lower surface of the light transmissive plate 10 via an adhesive, it can be easily fixed to the light transmissive plate 10. Furthermore, the installation space (thickness) of the solar panel 70 can be reduced, and the thickness of the roof portion including the light transmissive plate 10 and the solar panel 70 can be reduced. Therefore, a large space below the light transmissive plate 10 can be secured.

  Furthermore, since the solar panel 70 is composed of the flexible solar panel 71, the solar panel 70 is replaced with the light transmissive plate material even if the light transmissive plate material 10 has a curved shape as in the present embodiment. 10 can be made to follow the lower surface of 10 and be securely bonded.

  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, so that the solar panel 70 and the lighting device 30 can be easily attached. . Furthermore, since a large illuminating device (not shown) can be installed, illumination can be brightened. Or since the illuminating device 30 currently formed in plurality can be put together into a large-sized 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.

  On the other hand, since the power supply unit 31 of the lighting device 30 is disposed above the light emitting unit 51, the wiring between the solar panel 70 and the power supply unit 31 can be shortened, and between the power supply unit 31 and the light emitting unit 51. It is possible to achieve a rational arrangement that can shorten the wiring, and the lighting device 30 can be reduced in size and cost.

  In addition, 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. Therefore, the bright lighting device 30 can be provided with low power consumption. 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.

  If the reflector 55 includes 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 the reflector 55 is formed 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.

  By providing the heat dissipating member 72 above the reflector 55 above the light emitting unit 51, heat generated from the light emitting diode 52 (light emitting unit 51) can be efficiently dissipated to the surroundings. In particular, since the heat radiating member 72 includes a substrate 73 that contacts the light emitting unit 51 via the reflector 55 and a heat radiating fin 74 attached to the substrate 73, the heat from the light emitting unit 51 is transferred to the heat radiating fin 74. It is possible to dissipate heat to the surroundings more efficiently via the.

  In particular, since the substrate 73 is made of copper or a copper alloy and the heat radiation fins 74 are made of aluminum or an aluminum alloy, the heat radiation fins 74 can be joined to the substrate 73 by frictional vibration joining. According to this, the thermal conductivity of the joint boundary portion can be 250 W / m · K or more, the heat dissipation performance is very high, and it is not necessary to use the flux required for brazing when mounting. The heat dissipation member 72 in consideration of the environment can be provided. Furthermore, since aluminum or an aluminum alloy is used for the heat radiating fins 74, the weight of the heat radiating member 72 can be reduced, and the weight of the entire lighting device 30 can be reduced.

  By providing a ventilation port 67 for circulating the air inside the casing 61 of the lighting device 30, the inside of the lighting device 30 can be ventilated and temperature rise inside the lighting device 30 can be prevented. . Since at least one pair of the ventilation ports 67 is provided on the wall surfaces of the casings 61 facing each other, the ventilation efficiency is high. The pair of ventilation ports 67 and 67 are disposed at a height corresponding to the heat radiating member 72 and are formed at both ends in the extending direction of the heat radiating fins 74, so that air extends along the extending direction of the heat radiating fins 74. The heat dissipation efficiency is improved. Further, since the heat radiation fins 74 extend in a direction orthogonal to the arrangement direction of the light emitting diodes 52, air flows in a direction orthogonal to the arrangement direction of the light emitting diodes 52. For this reason, since the light emitting diode 52 in contact with one radiating fin 74 is single, the cooling efficiency is high and the light emitting diode 52 can be reliably cooled.

  Furthermore, since the fans 68 and 68 for forcibly circulating the internal air are provided in the ventilation ports 67 and 67, the air in the casing 61 can be forcibly distributed and ventilated. Further, the heat dissipation efficiency can be 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 expect further life extension, 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 (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. In addition, since unnecessary power consumption can be suppressed, the battery 33 can be further reduced in size.

  Since the illuminating device 30 is being fixed to the lower surface of the light transmissive board | plate material 10, it can prevent that the illuminating device 30 is exposed to a wind and rain.

  In the present embodiment, the light-transmitting resin sheet 12 containing the phosphor is attached to the light-transmitting plate material 10 at the position where the solar panel 70 is laid, but instead of the light-transmitting resin sheet 12. A prism sheet (not shown) may be attached. By providing the prism sheet, it is possible to prevent the sunlight from being totally reflected by the light-transmitting plate material, and to uniformly transmit the sunlight, thereby improving the power generation efficiency of the solar panel 70.

[Second Embodiment]
FIG. 10 is a perspective view showing a second embodiment 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 shown in FIG. 10, 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, a lighting device 30, and a solar panel 70. ing. 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, 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 is configured to face the lower surface of the light transmissive plate member 10 located above.

(solar panel)
The solar panel 70 in the present embodiment also has the same configuration as the solar panel 70 in the first embodiment. That is, the solar panel 70 is laid so that the light receiving surface thereof is in contact with the lower surface of the light transmissive plate member 10. The solar panel 70 is composed of a deformable flexible solar panel 71 (flexible panel), and is laid so as to follow the shape of the curved light transmissive plate 10. The flexible solar panel 71 is affixed to the lower surface of the light transmissive plate member 10 via an adhesive.
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 capacity | capacitance of the illuminating device 30 is large, it is more effective to enlarge the light-receiving area of the solar panel 70 and to enlarge the power generation capacity.

  In addition, in this Embodiment, although this roof structure 1 with an 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. Also, the roof shape 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. Furthermore, 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.

  As mentioned above, although the form for implementing this invention was demonstrated, this invention is not limited to the said embodiment, In the range which does not deviate from the meaning of this invention, a design change is possible suitably. For example, in the first and second embodiments described above, the solar panel 70 is configured by the flexible solar panel 71 and is laid out following the curved light-transmitting plate 10. When the transmissive plate material is flat, the solar panel does not need to be flexible and may be a hard flat plate.

  Further, 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.

  Further, in the above 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.

  Moreover, 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.

  Furthermore, it is needless to say that the roof structure 1 with a lighting device according to the present invention is not limited to being used as the carport roof 2 or the waiting space roof 3. For example, it can be used at a resting place in a park or a terrace of a house.

DESCRIPTION OF SYMBOLS 1 Roof structure with illuminating device 2 Roof for carports 3 Roof for waiting space 10 Light transmissive plate material 11 Light transmissive resin plate 20 Frame material 30 Lighting device 31 Power supply unit 33 Battery 51 Light emitting unit 52 Light emitting diode 55 Reflector 56 Cover 61 Casing 67 Ventilation port 68 Fan 70 Solar panel 71 Flexible solar panel (flexible panel)
72 Heat dissipation member 73 Substrate 74 Heat dissipation fin

Claims (24)

A roof structure with a lighting device comprising a light transmissive plate, a frame material that supports the light transmissive plate, a solar panel that converts solar energy into electrical energy, and a lighting device,
The light-transmitting plate material includes only a curved portion that is convex upward,
The solar panel is capable of following the shape of the light transmissive plate and is laid on the lower surface of the light transmissive plate,
The lighting device includes: a power source unit including a battery that stores electrical energy converted by the solar panel; and a light emitting unit configured by a light emitting diode that is lit by direct current power supplied from the battery. It is provided in an integral casing that constitutes the outer shell,
The said frame material is comprised with the extruded shape member made from aluminum or the aluminum alloy by which the anodized film process was given to the surface, The roof structure body with an illuminating device characterized by the above-mentioned. 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 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 4 . The roof structure with a lighting device according to any one of claims 1 to 5 , wherein in the lighting device, the power supply unit is disposed above the light emitting unit. The roof structure with an illumination device according to any one of claims 1 to 6 , 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 7 , wherein the reflector is formed of aluminum or an aluminum alloy. The roof structure with a lighting device according to claim 7 or 8 , 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 9 , wherein the surface of the high-purity aluminum layer is polished to reduce its surface roughness. The roof structure with a lighting device according to any one of claims 1 to 10 , wherein a heat radiating member for radiating heat generated in the light emitting part is provided on an upper part of the light emitting part. The roof structure with a lighting device according to claim 11 , wherein the heat radiating member includes a substrate in contact with the light emitting unit and a heat radiating fin attached to the substrate. The roof structure with a lighting device according to claim 11 or 12 , wherein the heat radiating member is made of copper or a copper alloy. The substrate is formed of copper or a copper alloy,
The roof structure with a lighting device according to claim 12 , wherein the radiation fin is formed of aluminum or an aluminum alloy. The roof structure with an illuminating device according to any one of claims 1 to 14 , wherein a ventilation port for circulating air inside is provided in a casing constituting an outer shell of the illuminating device. body. At least a pair of the ventilation openings are provided on the wall surfaces of the casings facing each other,
The roof structure with a lighting device according to claim 15 , wherein a fan is provided in at least one of the pair of ventilation openings. A roof structure with a lighting device comprising a light transmissive plate, a frame material that supports the light transmissive plate, a solar panel that converts solar energy into electrical energy, and a lighting device,
The light-transmitting plate material includes only a curved portion that is convex upward,
The lighting device integrally includes a power supply unit including a battery that stores electric energy converted by the solar panel, and a light emitting unit configured by a light emitting diode that is lit by power supplied from the battery. ,
The solar panel is laid on the lower surface so as to face the lower surface of the light-transmitting plate,
A roof structure with a lighting device, wherein a light-transmitting resin sheet containing a phosphor is affixed to the light-transmitting plate at the position where the solar panel is installed. A roof structure with a lighting device comprising a light transmissive plate, a frame material that supports the light transmissive plate, a solar panel that converts solar energy into electrical energy, and a lighting device,
The light-transmitting plate material includes only a curved portion that is convex upward,
The lighting device integrally includes a power supply unit including a battery that stores electric energy converted by the solar panel, and a light emitting unit configured by a light emitting diode that is lit by power supplied from the battery. ,
The solar panel is laid on the lower surface so as to face the lower surface of the light-transmitting plate,
A prism sheet for condensing sunlight on the solar panel is affixed to the light transmissive plate at the position where the solar panel is installed. The roof structure with a lighting device according to any one of claims 1 to 18 , wherein a cover that covers the light emitting portion is provided below the light emitting portion. The roof structure with a lighting device according to any one of claims 1 to 19 , 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 20 , wherein the lighting device is fixed to the light transmissive plate member. The roof structure with an illumination device according to any one of claims 1 to 20 , wherein the illumination 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 22 . The roof for waiting spaces characterized by using the roof structure with an illuminating device of any one of Claims 1 thru | or 22 .

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