JPH11175014A - Solar cell tile - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a solar cell tile which is easily maintained and reducible in thickness. SOLUTION: The solar cell tile 10 is equipped with a case 11 consisting of a case main body 20 and a lid member 30, a solar cell part 12 arranged in the case 11, a light emitting diode 13 arranged in the case 11, and a driving means 14 which is at a different plane position in the case 11 from the light emitting diode 13 and turns on the light emitting diode 13 with electricity generated by the solar cell part 12. The maintenance can be facilitated and the thickness can be made as thick as a decoration tile by arranging the driving means 13 and light emitting diodes 13 at the different plane positions.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a solar cell tile.

[0002]

2. Description of the Related Art Conventionally, lighting devices and the like have been lit using a solar cell at the time of a power failure of a commercial power supply or at night. For example, installing solar cells on the roof of a carport,
There is a device in which this solar cell is connected to a battery disposed in a carport, and a lighting device provided in the carport is connected to the battery via a switch (Japanese Utility Model Registration No. 2133811). There is also a lighting device or the like in which electricity generated by a solar cell using daytime sunlight or the like is stored in a storage battery, and a lighting device or the like is turned on at night using the electricity stored in the storage battery ( Utility model registration No. 1738242).

By the way, stairs and slopes formed on the entrance porch of a building are formed by casting concrete, and a plurality of tiles as a finishing material are adhered to the surface with an adhesive such as mortar. ing. At this time, in order to provide directions to the entrance of the building at night or to make it easy to know the parking position when parking the car, a luminescent tile is placed on a part of the entrance part or the parking position of the car. A plurality is arranged.

[0004] Light-emitting tiles include a light-emitting body that is turned on by electricity,
It was configured to include a storage battery such as a nickel-cadmium battery or a lead battery connected to the light-emitting body.

[0005]

However, the conventional light-emitting tiles are difficult to use in cold regions where the temperature is extremely low because of the temperature characteristics of the storage battery, and the storage battery has a small number of storage batteries.
Since a nickel-cadmium battery or a lead battery, which easily deteriorates in a year, is used, the storage battery must be replaced in a short cycle, and there is a problem that maintenance is difficult. In addition, when performing maintenance of the light emitting tile, it is necessary to carefully and surely provide waterproofing so that water or the like does not enter inside, and there is a problem that maintenance is also difficult from this point. Therefore, also in the light emitting tile, the above-described prior art (utility model registration No. 213381) in which a lighting device or the like is turned on at the time of a power failure of a commercial power supply or at night using a solar cell.
No. 1, Japanese Utility Model Registration No. 1738242), and this tile has the same thickness as that of other general tiles or is smaller than that of general tiles in consideration of handling after construction. Thinner ones are required.

An object of the present invention is to provide a solar cell tile which can be easily maintained and can be reduced in thickness.

[0007]

The solar cell tile 10 according to the present invention will be described with reference to the drawings. A case body 20 and a cover member 30 disposed on the case body 20 and having at least a part of which is translucent. , A solar cell unit 12 disposed inside the case 11, a light emitter (for example, a light emitting diode 13) disposed in the case 11, and a planar position in the case 11 different from the light emitter. And a driving unit 14 for causing the luminous body to emit light by the electricity generated by the solar cell unit 12.

[0008] By causing the luminous body to emit light by the electricity generated by the solar cell unit, battery replacement and waterproofing can be performed in two to three years, compared to the conventional case of using a nickel-cadmium battery or a lead battery. There is no need for construction, and maintenance is easy. In addition, by making the plane positions of the driving means and the illuminant different, the thickness of the solar cell tile can be reduced, and the thickness dimension can be made similar to that of a general tile. For this reason, when commonly used tiles and solar cell tiles are mixed and pasted together, a large amount of adhesive such as mortar is poured under the generally used tiles so that no step is formed on the surface of stairs or slopes. There is no need to perform special construction such as providing a step in advance to the part where the concrete to which the tiles are to be cast is placed, and it is the same as the construction structure of ordinary tiles, so solar cell tiles and commonly used tiles The construction cost when mixed is reduced. In particular, if the size and shape of the solar cell tiles are completely the same as other commonly used tiles, the construction structure will be the same as ordinary tiles, and when solar cell tiles and commonly used tiles are mixed Construction cost is further reduced.

Further, the case body 20 and the lid member 30
In addition, an outer wall portion 31 and an inner wall portion 32 provided on the inner peripheral side of the outer wall portion 31 are formed.
It is preferable to arrange inside. Since a double waterproof structure is formed between the outer wall portion and the inner wall portion, if the drive means is disposed inside the inner wall portion, the probability of rainwater or the like entering the drive means portion having an electric circuit or the like is extremely low. Can be reduced to
A solar cell tile having high waterproof performance can be obtained.

Further, it is desirable that the cover member 30 is formed of a light transmitting portion 51 having a light transmitting property and a non-light transmitting portion 52 having no light transmitting property. A light-transmitting portion having a light-transmitting lid member,
If it is formed from a non-light-transmitting part having no light-transmitting property, various patterns such as numbers, characters, or geometric patterns will be formed by combining the light-transmitting part and the non-light-transmitting part. .

It is preferable that the inner surface of the space where the luminous body is arranged is a reflecting surface. If the inner surface of the space in which the illuminant is disposed is used as a reflective surface, light emitted from the illuminant is reflected on the reflective surface and is efficiently sent to the upper surface of the lid member. The pattern and the like formed on the vehicle can be clearly seen, and the route to the entrance or the like can be surely notified at night, for example. In addition, even if the light amount of the light emitter is small, the light is easily collected on the upper surface of the lid member by being reflected by the reflection surface, so that the power consumption of the light emitter can be reduced, and It can be used for a period, and the capacity of the storage battery can be reduced.

Further, the solar cell section 12 may be provided integrally with the lid member 30. If the solar cell portion is provided integrally with the lid member, the solar cell tile is formed simply by attaching the lid member to the case main body, so that the operation of assembling and mounting the solar cell tile can be easily performed. .

It is preferable that the solar cell section 12 is provided integrally with the case body 20. If the solar cell part is provided integrally with the case body, the wiring work between the driving means and the solar cell part can be performed reliably and easily, and in this respect, the handling of the solar cell tile assembling work and mounting work is easy. Will be able to do it.

[0014]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows an entrance 1 of a building 4 to which the first embodiment of the present invention is applied. The entrance 1 has an entrance porch 2 and a parking space 3 for a car 5 provided adjacent to the entrance porch 2 and in front of a building 4. The entrance porch 2 is formed with a staircase 6 and a slope 7 provided with a handrail.

As shown in FIG. 2, the stairs 6 and the slopes 7 are formed by casting concrete, and on the surface thereof, a base mortar 101 and a joint mortar on which a tile 8 as a finishing material is an adhesive. Pasted at 102. At this time, the solar cell tiles 10 are arranged at predetermined intervals on both sides and the center of the stairs 6 and on both sides of the slope 7, and the other generally used flat square decorative tiles are used. 9 is pasted.
Further, solar cell tiles 10 are also installed at predetermined intervals at the parking position of the car 5 in the parking space 3.

As shown in FIG. 3 and FIG.
Reference numeral 0 denotes a case 11 composed of a case body 20 and a lid member 30 arranged on the case body 20, a solar cell unit 12 arranged inside the case 11,
The light emitting diode 13 which is a light emitter disposed in the case 11 and the light emitting diode 13
In addition, a driving means 14 for causing the light emitting diode 13 to emit light by the electricity generated by the solar cell unit 12 is provided, and is formed to have substantially the same size and a planar square shape as the decorative tile 9.

Further, in the photovoltaic cell tile 10, a light detecting means (not shown) for detecting the surrounding brightness from the decrease in the amount of power generated by the photovoltaic cell section 12 is attached. Further, the driving means 14 includes a flat rectangular electric double-layer capacitor (hereinafter referred to as a capacitor) 14A which is a storage battery in which electricity generated by the solar cell unit 12 is charged, and the capacitor 14A
Circuit 14B for switching between charging and discharging of the substrate, and a substrate 14C on which the capacitor 14A and the control circuit 14B are installed.
It is comprised including. The driving means 14 is arranged inside an inner wall portion engaged with a projecting portion of the case main body 20 described later.

The solar cell section 12 includes four solar cells 1
It is provided with a solar cell panel 121 made of 21A. The solar cell panel 121 supplies electricity to the capacitor 14A via the control circuit 14B of the driving means 14. The solar cell panel 121 and the control circuit 14B are electrically connected to each other through electric wires (not shown). I have. The four solar cells 121A are connected in series,
It is integrally attached to the central part of the lid member 30. Here, in the present embodiment, four solar cells 121A
Although a polycrystalline type is used, a single crystal type cell may be used, or a cell made of amorphous silicon instead of a crystalline type may be used.

The case body 20 is formed of a polycarbonate resin, and has a plate-shaped bottom portion 21 provided with a groove portion 22 along an edge thereof, and a protruding portion 23 formed on an inner peripheral side thereof.

The lid member 30 is made of a reinforced material made of polycarbonate resin, and has an outer wall 3 having a first recess 31A engaged with the groove 22 of the case body 20.
1, an inner wall portion 32 having a second concave portion 32 </ b> A engaged with the projecting portion 23 of the case main body 20, and an upper surface portion 33. A packing member 103 is packed in each engagement portion between the case body 20 and the lid member 30.

The upper surface portion 33 has a light transmitting portion 51 having a light transmitting property.
The central portion of the translucent portion 51, that is, the portion 51A to which the solar cell panel 121 is attached is transparent so that light is applied to the solar cell panel 121.
The lower portion of the portion 51B other than the center portion of the upper surface portion 33, that is, the portion 51B along the space in which the light emitting diode 13 is arranged, has a lower surface formed in a cube-corner-shaped uneven surface, and light emitted from the light emitting diode 13 is diffused. It has become to spread.

In the space between the groove 22 and the projection 23, that is, between the outer wall 31 and the inner wall 32, the light emitting diode 13 mounted on the substrate 14C and protruding from the substrate 14C is arranged. The driving means 14 is attached to the inside of the protrusion 23, that is, to the inside of the inner wall 32. Thereby, the light emitting diode 13 and the driving means 14 are arranged so that the planar positions are different.
Note that a cutout portion 32B in which a wiring portion between the light emitting diode 13 and the substrate 14C is disposed is formed in a portion of the inner wall portion 32 where the light emitting diode 13 is disposed.

The inner surface of the space where the light emitting diode 13 is disposed is provided with a reflecting plate 15 such as a mirror for reflecting light emitted from the light emitting diode 13 upward as indicated by an arrow Q, thereby forming a reflecting surface. ing. Further, on the inner surfaces of the outer wall portion 31 and the groove portion 22, there is formed an inclined portion 31B in which the reflecting plate 15 is inclined at 45 degrees with respect to the horizontal plane so as to efficiently reflect the light of the light emitting diode 13 upward. .

The solar cell section 12 attached to the cover member 30 has a cell 1 on the inner peripheral side of the inner wall 32 of the cover member 30.
21A, and is formed by enclosing the cell 121A with an adhesive transparent resin such as EVA (ethylene-vinyl acetate copolymer) and PVB (polyvinyl butyral).

Next, the procedure for constructing the tile 8 in which the decorative tile 9 and the solar cell tile 10 are mixed will be described below. After the concrete is cast to form the stairs 6 and the like, decorative tiles 9 and solar cell tiles 10 are arranged on the upper surface as shown in FIG. More specifically, first, a base mortar 101 serving as a base for arranging the tiles 8 is poured into the upper surface on which the concrete is cast. Then, the decorative tile 9 and the solar cell tile 10 are arranged and adhered on the poured base mortar 101. Further, joint mortar 102 for closing the joint between the tiles 9 and 10 is injected into the joint between the tiles 9 and 10. In addition, slope 7
Is also constructed in the same manner as the stairs 6.

Next, the operation of the solar cell tile 10 will be described. First, in the daytime, light such as the sun is absorbed by the solar cell panel 121, and electricity generated by the solar cell panel 121 is temporarily stored in the capacitor 14A via the control circuit 14B. At this time, the control circuit 14B controls the solar cell panel 121
Is controlled so as to charge the capacitor 14A with the electricity generated in step (1). When the light sensing means (not shown) detects nighttime from the decrease in the amount of power generated by the solar cell unit 12, the control circuit 1
4B works to discharge the electricity charged in the capacitor 14A, the electricity stored in the capacitor 14A is sent to the light emitting diode 13, and the light emitting diode 13 is turned on. This light is sent upward, as indicated by the arrow line Q, directly or by the reflection plate 15 or the like, and is radiated to the outside while being diffused on the uneven surface of the cube corner type.

According to this embodiment, the following effects can be obtained. (1) Battery replacement in two to three years by causing the light emitting diode 13 to emit light by the electricity generated by the solar cell unit 12 as compared with a conventional case using a nickel cadmium battery or a lead battery. It is not necessary to perform waterproofing or waterproofing, and maintenance can be facilitated. Further, the driving means 14
The thickness of the solar cell tile 10 can be reduced and the thickness dimension can be made the same as that of the decorative tile 9 by making the plane positions of the light emitting diode 13 and the light emitting diode 13 different. For this reason, when the commonly used decorative tile 9 and the solar battery tile 10 are pasted together, a large amount of mortar is poured under the decorative tile 9 so that no step is formed on the surface of the stairs 6, the slope 7, and the like. It is not necessary to perform a special construction such as providing a step in advance at the part where the concrete to which the tile 8 is to be attached is placed.
Solar cell tile 1
The construction cost can be reduced when 0 and commonly used decorative tiles 9 are mixed. In particular, in the present embodiment, since the size and shape of the solar cell tile 10 are completely the same as the other decorative tiles 9, the construction structure can be the same as the decorative tile 9, and the solar cell tile 10 and the decorative tile 9 9 can be further reduced, and even if it is installed on a slope such as the slope 7 of the entrance porch 2 for a user such as a wheelchair, an unpleasant step does not occur.

(2) Since a double waterproof structure can be formed by the outer wall portion 31 and the inner wall portion 32 formed on the case body 20 and the lid member 30, the drive means 14 is disposed inside the inner wall portion 32. Means 1 having an electric circuit and the like
The probability of rainwater or the like entering the four portions can be extremely reduced, and the solar cell tile 10 having high waterproof performance can be obtained.

(3) Packing members 103 are stuffed into two portions of the engaging portion between the first concave portion 31A and the groove portion 22 and the engaging portion between the second concave portion 32A and the projecting portion 23, respectively, so that triple waterproofing is achieved. Because it can be made a structure with a seal,
The waterproof performance of the solar cell tile 10 can be further improved.

(4) Since the inner surface of the space where the light emitting diode 13 is disposed is a reflecting surface with the reflecting plate 15 attached thereto, light emitted from the light emitting diode 13 is reflected by the reflecting surface. It can be sent to the upper surface of the lid member 30 efficiently. Particularly, since the inner wall of the outer wall portion 31 has the inclined portion 31B inclined at 45 degrees with respect to the horizontal plane, the light emitted horizontally from the light emitting diode 13 is reflected on the inclined portion 31B. Light can be efficiently irradiated upward by contacting the plate 15. Therefore, for example, a pattern or the like formed on the upper surface of the lid member 30 can be clearly seen, and the route to the entrance 1 or the like can be reliably notified at night.

(5) Since the inner surface of the space where the light emitting diode 13 is disposed is a reflecting surface with the reflecting plate 15 attached thereto, the light is reflected by the reflecting surface even if the light amount of the light emitting diode 13 is small. As a result, light can be easily collected on the upper surface of the lid member 30, so that the power consumption of the light emitting diode 13 can be reduced, the light emitting diode 13 can be used for a long time, and the capacity of the capacitor 14A is also reduced. Can be.

(6) Since the solar cell section 12 is integrally attached to the lid member 30, the lid member 3 is attached to the case body 20.
Since the solar cell tile 10 can be formed only by attaching 0, the solar cell tile 10 can be easily handled such as assembling work and mounting work. In addition, the cell 121A and the EV
A, PVB or other transparent resin is placed and filled, and solar cell unit 1
2, and it is not necessary to separately provide a frame or the like unlike a general solar cell module, so that the cost for forming the solar cell section 12 can also be reduced.

(7) The solar cell tile 10 has a cover member 30
Since the outer wall portion 31 formed at the bottom is extended to the lower surface of the case body 20, the lid member 30 is adhered to the mortars 101 and 102 when the solar cell tile 10 is installed. It can be hard to come off.
For this reason, the lid member 30 does not come off after the solar cell tile 10 is installed, and damage to the solar cell tile 10 can be prevented.

(8) Since the capacitor 14A, which is less susceptible to deterioration than a lead battery or a NiCd battery, is used as a storage battery, the period until replacement can be extended, and the solar cell tile 1
0 can be used for a long time. In addition, since the small-capacity capacitor 14A can be charged with a brightness of about 3000 (lx), the capacitor 14A does not need to be in direct sunlight. Therefore, the solar cell tile 10 of the present invention is placed on the northern entrance 1 or the like. Can be used. Further, a small amount of gas or the like is generated at the time of charging, and the electric double layer capacitor 14 is used without using a lead battery or a nickel-cadmium battery made of an organic compound.
A-friendly, environmentally friendly solar tile 1
0 can be formed. In addition, by using the flat rectangular capacitor 14A as the storage battery, the degree of freedom in the shape of the storage battery, such as reduction in thickness, is increased, and the solar cell tile 10 can be made thinner. Further, since the capacitor 14A can be used in a wide temperature range, it can be used in a cold place where the temperature is very low or a hot place where the temperature is very high.

(9) Since the case body 20 and the lid member 30 are made of polycarbonate resin, the solar cell tile 10 having excellent heat resistance, water resistance and impact resistance can be formed.

(10) By installing the photovoltaic tiles 10 on the stairs 6 and the slopes 7, the width of the stairs 6 and the slopes 7 can be confirmed at night, and the directions to the entrance 1 can be surely confirmed. . Furthermore, since the solar cell tile 10 is installed at the parking position of the car 5 in the parking space 3, when the car 5 is parked in the parking space 3 at night, the lit solar cell tile 10 should be used as a guide. Thus, parking can be easily performed.

FIG. 5 is an exploded perspective view of a solar cell tile 10 to which the second embodiment of the present invention is applied. Note that the same or equivalent components as those of the first embodiment are denoted by the same reference numerals, and description thereof will be omitted or simplified. This embodiment is different from the first embodiment in that the engagement structure between the case body 20 and the lid member 30 and the solar cell unit 12 is integrally attached to the case body 20.

More specifically, the lid member 30 is a plate-like upper surface portion 3.
3, a not-shown groove formed in the case main body 20 in the first embodiment is provided along an edge thereof, and the case main body 20 in the first embodiment is provided on an inner peripheral side thereof.
(Not shown) is formed.

The case body 20 has a plate-like bottom portion 21.
And an outer wall portion 24 having a first concave portion 24A engaged with the groove portion of the lid member 30 and an inner wall portion 25 having a second concave portion 25A engaged with the projecting portion of the lid member 30. I have. The solar cell unit 12 includes four solar cells 121A.
Solar cell panel 121 composed of: a transparent resin 122 such as EVA (ethylene-vinyl acetate copolymer) or PVB (polyvinyl butyral) having adhesive strength and enclosing solar cell panel 121, and a lower surface of transparent resin 122 And a support frame 124 provided along the edge of the transparent resin 122 to form an independent module.

According to the present embodiment, (1), (2), (4), (5), (8) to (1)
In addition to the same effects as in (0), the following effects can be obtained. Packing members 103 are packed into two portions of the engaging portion between the first concave portion 24A and the groove portion and the engaging portion between the second concave portion 25A and the protruding portion, respectively, so that a structure having a triple waterproof seal can be obtained. Therefore, the waterproof performance of the solar cell tile 10 can be further improved.

Further, since the solar cell section 12 is integrally attached to the case body 20, wiring work between the driving means 14 and the solar cell section 12 can be performed reliably and easily, and the solar cell tile 10 can be assembled. Work such as work and mounting work can be easily performed.

Further, since the solar cell tile 10 uses the substantially plate-shaped cover member 30, the cover member 30 can be easily detached even after the solar cell tile 10 is installed. Replacement of the capacitor 14A, replacement of the solar cell panel 121, and the like can be easily performed.

It should be noted that the present invention is not limited to the above-described embodiment, but includes other configurations that can achieve the object of the present invention, and the following modifications are also included in the present invention.
For example, in the above-described embodiment, the size and shape of the solar cell tile 10 are substantially the same as those of the decorative tile 9 which is generally used. The size may be the same as that of the commonly used decorative tile 9. That is, if the thickness dimension is made thin similarly to the commonly used decorative tile 9, when the commonly used decorative tile 9 and the solar cell tile 10 are mixed and applied, there is almost no need to perform special construction. Since the construction can be performed in the same manner as the construction of a general decorative tile 9, the construction cost when the solar cell tile 10 and the commonly used decorative tile 9 are mixed can be reduced.

Although the inner surface of the space where the light emitting diode 13 is arranged is a reflecting surface, it does not have to be a reflecting surface. However, when the inner surface of the space is a reflecting surface, light emitted from the light emitting diode 13 is reflected by the reflecting surface and can be efficiently transmitted upward, so that the power consumption of the light emitting diode 13 is reduced. It is preferable in that it can be performed.

Further, in the above embodiment, the cover member 30
Is only the light-transmitting portion 51 having a light-transmitting property. However, the present invention is not limited to this. For example, a geometrical pattern or pattern as shown in FIGS. In the case of displaying characters or the like as shown in FIG. 5, the lid member 30 is formed of a light-transmitting portion 51 having a light-transmitting property and a non-light-transmitting portion 52 having no light-transmitting property. By combining with the non-light-transmitting portion 52, various patterns may be displayed.

In the above embodiment, the driving means 14
Is arranged inside the inner wall portions 25 and 32 formed by the case body 20 and the lid member 30, but is not limited thereto.
For example, the light emitting diode 13 may be provided at the center of the solar cell tile 10, and the driving means 14 may be provided on the outer peripheral side. However, it is preferable to dispose the driving means 14 inside the inner wall portions 25 and 32 formed by the case body 20 and the lid member 30 in that the waterproof performance of the driving means 14 can be improved.

Further, the solar cell section 12 may be attached to either the lid member 30 or the case main body 20, and may be appropriately selected according to handling operations such as an assembling operation and an attaching operation of the solar cell tile 10. Good.

In the above-described embodiment, the light sensing means for sensing the nighttime due to a decrease in the amount of power generated by the solar cell unit 12 is used for sensing the nighttime. However, the present invention is not limited to this. For example, nighttime may be detected by using the above-described method. Furthermore, when the light emitting diode 13 is constantly turned on, it is not necessary to provide a light sensing means, a light sensor, a timer, and the like.

Further, the solar battery tile 10 is not limited to the one used for the entrance porch 2 and the parking space 3, but may be used for the outer wall or inner wall of the building 4, the ceiling, the floor, the roof, the roof, and the like.

The light transmitting portion 51 of the lid member 30 includes
Various colors such as red, blue, yellow, and orange can be displayed, and may be determined as appropriate according to the pattern of the lid member 30 and the like.

[0051]

As described above, according to the solar cell tile of the present invention, the maintenance can be facilitated and the thickness can be reduced.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an entrance of a building to which a first embodiment of the present invention is applied.

FIG. 2 is a sectional view showing a stair to which a tile according to the first embodiment of the present invention is attached.

FIG. 3 is an exploded perspective view showing the solar cell tile according to the first embodiment of the present invention.

FIG. 4 is an enlarged sectional view showing the solar cell tile according to the first embodiment of the present invention.

FIG. 5 is an exploded perspective view showing a solar cell tile according to a second embodiment of the present invention.

FIG. 6 is a view showing a display example of a solar cell tile according to a modification of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Solar cell tile 11 Case 12 Solar cell part 13 Light emitting diode which is a luminous body 14 Drive means 15 Reflector 20 Case main body 30 Cover member 51 Light transmission part 52 Non-light transmission part 24, 31 Outer wall part 25, 32 Inner wall part

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁶ Identification code FI H01L 31/042 H01L 31/04 R

Claims (6)

[Claims] 1. A case comprising a case main body, a lid member disposed on the case main body and having at least a part thereof having a light-transmitting property, a solar cell portion disposed inside the case, and disposed inside the case. A solar cell tile, comprising: a light-emitting body that is different from the light-emitting body in a planar position in the case, and a driving unit that causes the light-emitting body to emit light by electricity generated by the solar cell unit. 2. The solar cell tile according to claim 1, wherein the case body and the cover member have an outer wall portion and an inner wall portion provided on an inner peripheral side of the outer wall portion.
The said drive means is arrange | positioned inside the said inner wall part, The solar cell tile characterized by the above-mentioned. 3. The solar cell tile according to claim 1, wherein the lid member has a light-transmitting portion having a light-transmitting property,
A solar cell tile formed of a non-light-transmitting portion having no light-transmitting property. 4. The solar cell tile according to claim 1, wherein an inner surface of a portion of the space in which the luminous body is arranged is a reflection surface. 5. The solar cell tile according to claim 1, wherein the solar cell unit is provided integrally with the lid member. 6. The solar cell tile according to claim 1, wherein the solar cell unit is provided integrally with the case body.