JPH08302942A - Solar cell roof structure and solar cell panel - Google Patents

Abstract

PURPOSE: To prevent intrusion of fire from the eaves side or the roof face side and remove gasses from the charged material of solar cells, by providing a noncombustible member with a distance from the solar cells at the underface of the solar cell panels. CONSTITUTION: A solar cell panel 10 is constituted of a metallic almost square frame body 11, solar cells 12 contained in the frame body, and a noncombustible member 19 provided under the cell bodies 12 with a distance from the cell bodies, as a unit. Panels 10 are both longitudinally and laterally arranged parallely on the upper face of metallic rails 5 installed on the roof face 3A. Since the cell bodies 12 and the noncombustible member 19 are positioned with a distance, intrusion of fire from the eaves side or the roof face side to the panels 10 can be prevented by the noncombustible member 19 and further, gasses are removed from the charged materials of the cell bodies 12 during the production or use thereof, owing to the clearance between the cell bodies 12 and the noncombustible member 19.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a solar cell roof structure and a solar cell panel, and can be used in a building such as a house.

[0002]

BACKGROUND ART Solar energy has been conventionally known as energy that does not adversely affect the environment and ecosystem, and solar cells are installed on roofs of houses and the like in order to use this solar energy. There is. When installing a solar cell on a roof, in order to prevent an accident such as a short circuit due to water leakage due to water or the like, a solar cell panel having a waterproof structure in which solar cells which are solar cells are housed is used. The size and the like of such a solar cell panel are standardized so that a predetermined voltage and electric power can be obtained by one sheet, and a predetermined number of solar cells are arranged inside. Further, the solar cell glass is arranged on the upper surface of the solar cell via an adhesive member such as EVA (ethylene vinyl acetate) which is a constituent member of the solar cell panel.

Such a solar cell panel is attached to the roof surface with a gap formed between the solar cell panel and the roof surface. This gap communicates with the outside, and the air inside the gap can circulate with the outside air. Therefore, when the temperature of the solar cell panel becomes high, the solar cell panel is cooled by the air circulating inside the gap, and the power generation efficiency of the solar cell panel does not decrease.

[0004]

By the way, in the case of a private fire, in the case of a solar cell roof with a solar cell panel attached, EVA heat is generated by the heat from the eaves side or the roof side.
May start to burn. Then, as this EVA burns, it flows out through the gap between the solar cell panel and the roof surface and flows out to the outside, and as a result, the EVA may spread to the next house. Therefore, there is an idea to make the solar cell panel incombustible. As an example, it is possible to stick an incombustible material such as an iron plate on the lower surface of the solar cell.

However, in this case, it is inconvenient if the noncombustible material adheres to the solar cell. That is, gas is generated from EVA when manufacturing a solar cell. If curing is carried out for a period until the gas is completely discharged, and then the solar cell panel is manufactured, the manufacturing period becomes long, and it is a problem that an accurate manufacturing process cannot be assembled. Even if it is installed after being cured to some extent, gas may be generated during use of the solar cell panel, which is a problem.

An object of the present invention is to provide a solar cell roof structure and a solar cell panel which can prevent the invasion of fire from the eaves side or the roof surface side and can degas the solar cell filler. is there.

[0007]

A solar cell roof structure according to the present invention is a solar cell roof structure in which a plurality of solar cell panels each containing a solar cell body are arranged side by side on a roof surface. A non-combustible member is provided on the lower surface side of the battery panel so as to be spaced apart from the solar cell body.

Another solar cell roof structure according to the present invention is a solar cell roof structure in which a plurality of solar cell panels each incorporating a solar cell body are arranged in parallel on the roof surface. A non-combustible member having air permeability is provided on the lower surface side of the solar cell unit without being spaced apart from the solar cell unit.

In these solar cell roof structures, the non-combustible member may be formed of a metal plate and the metal plate may be provided with ventilation holes.

In the solar cell roof structure of the present invention, the solar cell panel may have a frame, and a non-combustible member may be supported on the frame, and the solar cell panel may be mounted on the roof surface. You may attach to the provided support frame and make this support frame support an incombustible member.

Further, the solar cell panel of the present invention has a solar cell body and a non-combustible member arranged below the solar cell body, and a space is provided between the solar cell body and the non-combustible member. It is characterized by that.

Another solar cell panel of the present invention has a solar cell body and a non-combustible member having air permeability, which is arranged below the solar cell body, and the non-combustible member is directly attached to the solar cell body. It is characterized by.

In these solar cell panels, the non-combustible member may be formed of a metal plate and the metal plate may be provided with a vent hole.

[0014]

In such a solar cell roof structure and solar cell panel of the present invention, since the solar cell body and the non-combustible member are provided on the lower surface side of the solar cell panel at intervals,
With the non-combustible member, it is possible to prevent fire from entering the solar cell panel from the eaves side or roof side, and the gap between the solar cell body and the non-combustible member prevents the filler material of the solar cell body from being manufactured or used. You will be able to vent gas. Further, since the non-combustible member is provided integrally with the solar cell panel, by sequentially installing the solar cell panels, a solar cell roof that can prevent fire from entering from the eaves side or the roof surface side can be easily configured. be able to.

Further, in another solar cell roof structure and solar cell panel according to the present invention, since the non-combustible member having air permeability is provided in the solar cell body without a gap, the non-combustible member is used on the eaves side or Since it is possible to prevent fire from entering the solar cell panel from the roof side and the non-combustible member has air permeability, it is possible to degas the filler of the solar cell body during manufacturing or use. Further, since the non-combustible member is provided integrally with the solar cell panel, by sequentially installing the solar cell panels, a solar cell roof that can prevent fire from entering from the eaves side or the roof surface side can be easily configured. be able to.

In these solar cell roof structures and solar cell panels, when the non-combustible member is formed of a metal plate and a ventilation hole is formed in this metal plate, the metal plate is a heat-resistant metal plate, and the eaves side or the roof surface. It is possible to prevent fire from entering the solar cell panel from the side, and to degas the filler of the solar cell body through the ventilation hole, and to use a commercially available product such as punched metal that has already been perforated as a non-combustible member. Therefore, it is possible to easily arrange the optimum non-combustible members.

[0017]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a solar cell roof 1 of the first embodiment. This solar cell roof 1 is a rafter 2 that is inclined downward from the ridge side of a building such as a house toward the eaves, and this rafter. 2 is a pitched roof including a base plate 3 attached along 2 and solar cell panels 10 arranged vertically and horizontally on the upper side of the base plate 3. The base plate 3 is a plywood having a waterproof member 4 such as asphalt roofing attached to the surface thereof, whereby a roof surface 3A for ensuring the waterproof performance of the roof 1 is formed. The roof 1 can be applied to a unit construction method, a panel construction method, a frame construction method, and the like.

A metal rail member 5 is provided on the roof surface 3A.
The rail member 5 is formed in an elongated prismatic shape, and corresponds to the width of the solar cell panel 10 from the tip of the eaves side to the edge of the ridge side and in the direction orthogonal to the paper surface in FIG. They are laid in parallel at intervals. An adjusting member 6 that adjusts the position of the solar cell panel 10 in the tilt direction is provided on the upper surface of the rail member 5, and a roof material 7 is provided on the upper surface of the adjusting member 6. Further, the width dimension of the adjusting member 6 is the same as the width dimension of the solar cell panel 10. A lid member 8 that allows ventilation and water passage is attached to the opening at the tip of the eaves, and a gutter 9 is provided below the lid member 8.

The solar cell panels 10 are vertically and horizontally arranged side by side on the upper surface of the rail member 5 having a predetermined height dimension. Therefore, the solar cell panel 10 and the adjusting member 6 and the roof surface 3A are arranged. A gap 50 is formed between them by an amount corresponding to the height dimension of the rail member 5, and air circulates in the gap 50, whereby the solar cell panel 10 is cooled. There is. The panel 10 closest to the eaves side is arranged within a range of, for example, about 1 m from the eaves side.

Although not shown, such a solar cell panel 10 is provided with a cable for extracting electric power to the outside, and this cable is wired indoors through a hole (not shown) opened in the roof surface 3A. It has become.

FIG. 2 shows the details of the solar cell panel 10. The solar cell panel 10 includes a substantially rectangular frame body 11 made of metal, a solar cell body 12 housed in the frame body 11, and a space below the solar cell body 12 and the solar cell body 12. It is integrally configured including the incombustible member 19 provided. The solar cell body 12 includes a back surface sealing member 13 having air permeability and an EV provided inside thereof.
A waterproof structure that includes a filling material 14 such as A and a predetermined number of solar cells (solar cells) 15, a solar cell glass 16 as a surface cover material provided on the top of the filling material 14, and a terminal box 17. Has become.

The solar cell body 12 as described above is supported within an end face sealing member 18 formed of, for example, butyl rubber, silicon or the like. The end face sealing member 18 is attached inside the upper step portion 11A formed inside the frame body 11.

The incombustible member 19 is formed of, for example, an iron plate, a stainless plate, or the like, and is attached to the lower step portion 11B formed below the upper step portion 11A. The non-combustible member 19 is formed to have substantially the same size as the solar cell panel 10. Here, a space 51 is provided between the non-combustible member 19 and the solar cell body 12, and the space 51 serves as a ventilation layer. Therefore, gas or the like generated when the solar cell body 12 is manufactured (cured) is released to the ventilation layer.

The solar cell panel 10 as described above has a standardized size and has such a structure. Therefore, an accident such as a leakage or a short circuit due to water, a load applied to the surface, etc. The solar cell 15 is protected from this. Further, since the non-combustible member 19 is attached, it is possible to prevent the intrusion of fire from the lower side, whereby the solar cell body 12 of the solar cell panel 10 is protected from the fire at the time of fire.

According to this embodiment as described above, the following effects can be obtained. That is, since the solar cell body 12 and the non-combustible member 19 are attached to the solar cell panel 10 with a space 51 therebetween, and the non-combustible member 19 is formed of an iron plate or the like, the fire from the eaves or the roof surface side. Can be prevented,
Further, since the space 51 is a ventilation layer, there is an effect that gas or the like generated during manufacturing (curing) or use of the solar cell body 12 can escape to the ventilation layer.

Since the non-combustible member 19 is integrally provided on the solar cell panel 10, the solar cell panel 1
By sequentially setting 0, the solar cell roof 1 capable of preventing the intrusion of fire from the eaves or the roof side can be easily configured.

FIG. 3 shows a second embodiment of the present invention. In this embodiment, the solar cell panel 10 in which the space 51 is provided between the noncombustible member 19 and the solar cell body 12 in the first embodiment is directly attached to the solar cell body 12. This is the solar cell panel 20.
That is, one step portion 21A is formed in the frame body 21, and the end face sealing member 18 is attached in the step portion 21A. The end face sealing member 18 supports the solar cell body 12 and the breathable non-combustible member 29. At this time, the non-combustible member 29 is the solar cell body 12.
Is attached directly to the underside of.

The incombustible member 29 is shown in FIG. The non-combustible member 29 is formed of, for example, an iron plate, a stainless steel plate, or the like, and the non-combustible member 29 has a through hole 29 that is, for example, a ventilation hole having a diameter D within a predetermined range.
A large number of A's are arranged in a triangular arrangement with a pitch P, and a punching metal that has been pre-drilled is used. The size of the through hole 29A is such that it can prevent the invasion of the fire in the event of a fire and allows the gas generated during the production to pass therethrough. For example, the diameter D
Indicates that holes of 0.5 mm are opened at a pitch P of 1 mm. Further, the total opening ratio of the non-combustible member 29 may be such that the number of the through holes 29A is sufficient to prevent the entry of fire and allow sufficient degassing.

The second embodiment as described above has the following effects. That is, the non-combustible member 29 is the solar cell body 12.
Although it is attached directly to the lower surface of the non-combustible member 29, since a large number of through holes 29A are formed in the non-combustible member 29, it is possible to prevent the entry of fire during a fire or the like, and to vent gas during manufacturing or during use. Can be fully performed.

Since the non-combustible member 29 is integrally provided on the solar cell panel 20, the solar cell panel 2
By sequentially setting 0, the solar cell roof 1 capable of preventing the intrusion of fire from the eaves or the roof side can be easily configured.

FIG. 5 shows a third embodiment of the present invention. In this embodiment, the non-combustible members 19 and 2 in each of the above embodiments are used.
9 is provided in the frame bodies 11 and 21 of the solar cell panels 10 and 20, and the incombustible member 39 is provided on the roof surface 3A side as a separate body from the frame body 31 of the solar cell panel 30.
That is, in the solar cell roof 1'of this embodiment, the size of the frame member 33A having an L-shaped cross section is provided between the rail members 5 and 5 and the entire size of the solar cell panels 10 arranged in parallel in the inclination direction. An assembled support frame 33 is provided, and an incombustible member 39 is attached to the support frame 33. The non-combustible member 39 is made of an iron plate, a stainless plate, or the like and has a width dimension of the solar cell panel 10, like the non-combustible member 19 of the first embodiment. Further, the non-combustible member 39 is pressed by the pressing members 34 arranged at a predetermined interval, so that the non-combustible member 39 is prevented from loosening.

In the second and third embodiments, the same structures and members as those in the first embodiment are designated by the same reference numerals, and detailed description thereof will be omitted or simplified.

According to the third embodiment as described above, the following effects can be obtained. That is, since the incombustible member 39 is attached to the support frame 33 as a separate body from the panel 30 on the lower surface of the solar cell panel 30, the eaves or the roof surface 3A.
It is possible to prevent the invasion of fire from the side, and since there is a ventilation layer with a space 51 ′ between the non-combustible member 39 and the solar cell body 12, it is possible to manufacture the solar cell body 12 (curing) or during use. There is an effect that the generated gas and the like can be released to the ventilation layer.

Further, the non-combustible member 39 is formed to have the size of the entire solar cell panel 10 arranged in parallel in the inclination direction, and the panel 1 is provided on the lower surface of the solar cell panel 10.
Since it is attached to the support frame 33 as a separate body from 0, it is not necessary to form each solar cell panel 10 in size, and the manufacturing labor is small. Furthermore, since the incombustible member 39 does not have to be incorporated in the solar cell panel 10, the structure of the frame body 39 of the solar cell panel 10 becomes simple.

The present invention is not limited to the above-mentioned embodiments, but includes the following modifications as long as the object of the present invention can be achieved. For example, although an iron plate, a stainless steel plate or the like is used as the non-combustible member 19 in the first embodiment, the non-combustible member similar to the non-combustible member 29 having the through hole 29A of the second embodiment is not limited to this. May be attached to the solar cell body 12 with a space 51 therebetween. In the present invention, in short, the non-combustible members 19 may be provided below the solar cell body 12 at intervals. By doing so, the gas can be more effectively degassed by the gap of the gap 51 and the through hole, and the through hole is further formed by the gap 5 on the roof surface 3A side.
Since it also communicates with 0, the effect of degassing is further increased.

Further, in the second embodiment, punching metal is used as the non-combustible member 29, and the through hole 29A of this punching metal has a large number of round holes of the outside dimension D. The shape of the holes and the arrangement state thereof are arbitrary, and may be, for example, a grid-shaped through hole, a slit-shaped through hole, a honeycomb-shaped through hole, a through hole having a shape in which round holes and cross patterns are combined, or the like. Incombustible member 29 of the present invention
In short, any material may be used as long as it has air permeability, but has an opening ratio such that fire can be prevented from entering during a fire or the like.

Further, in the third embodiment, the incombustible member 39 is used.
Is formed in the width dimension of the solar cell panel 30 and has the size of the entire solar cell panels 30 arranged in parallel in the inclination direction, but the size is not limited to this, and the size of each solar cell panel 30 is not limited to this. The formed solar cell panel 3
It may be attached separately from 0.

In each of the above embodiments, the non-combustible members 19, 2 are
The solar cell panels 10, 20, 30 having 9, 39,
Although the roof 1 is arranged in all of the inclination directions, the present invention is not limited to this, and the roof structure may be arranged, for example, in which the solar cell panel 10 provided with the non-combustible member 19 and the like is provided within about 1 m from the eaves.

Furthermore, in each of the above embodiments, the non-combustible member 19,
Although iron plates and the like are used as 29 and 39, the invention is not limited to this, and as the non-combustible member, for example, a calcareous board or a wood cement board may be used.

[0040]

As described above, in the solar cell roof structure and the solar cell panel of the present invention, the solar cell body and the non-combustible member are provided on the lower surface side of the solar cell panel with a space therebetween. The non-combustible member can prevent fire from entering the solar cell panel from the eaves side or the roof surface side, and the gap between the solar cell body and the non-combustible member allows the filling material of the solar cell body during manufacturing or use. Will be able to degas.
Further, since the non-combustible member is integrally provided on the solar cell panel, by sequentially installing the solar cell panel,
A solar cell roof that can prevent fire from entering from the eaves side or the roof side can be easily configured.

Further, in another solar cell roof structure and solar cell panel according to the present invention, since the non-combustible member having air permeability is provided in the solar cell body without a gap, the non-combustible member is used on the eaves side or on the eaves side. Since it is possible to prevent fire from entering the solar cell panel from the roof side and the non-combustible member has air permeability, it is possible to degas the filler of the solar cell body during manufacturing or use. Further, since the non-combustible member is provided integrally with the solar cell panel, by sequentially installing the solar cell panels, a solar cell roof that can prevent fire from entering from the eaves side or the roof surface side can be easily configured. be able to.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing the vicinity of a roof of a solar cell roof according to a first embodiment of the present invention.

FIG. 2 is a sectional view showing a solar cell panel according to a first embodiment.

FIG. 3 is a sectional view showing a solar cell panel according to a second embodiment of the present invention.

FIG. 4 is a plan view showing an incombustible member used in the solar cell panel of the second embodiment.

FIG. 5 is a cross-sectional view showing the vicinity of the eaves of the solar cell roof according to the third embodiment of the present invention.

[Explanation of symbols]

 1 Solar Cell Roof 5 Rail Member 10, 20, 30 Solar Cell Panel 11, 21, 31 Frame Body 12 Solar Cell Body 15 Solar Cell (Solar Cell) 19 Incombustible Member 29 Incombustible Member 29A Vent Through Hole 39 Incombustible Member 50 Gap 51 Gap

Claims (8)

[Claims] 1. A structure of a solar cell roof in which a plurality of solar cell panels each containing a solar cell body are arranged side by side on a roof surface, and a space between the solar cell body and the solar cell body is provided on a lower surface side of the solar cell panel. A solar cell roof structure characterized by being provided with non-combustible members. 2. A structure of a solar cell roof in which a plurality of solar cell panels each incorporating a solar cell body are installed side by side on a roof surface, and a space between the solar cell body and the solar cell body is provided on a lower surface side of the solar cell panel. A solar cell roof structure, which is provided with a non-combustible member having air permeability without opening. 3. The solar cell roof structure according to claim 1, wherein the incombustible member is formed of a metal plate, and a ventilation hole is formed in the metal plate. Roof structure. 4. The solar cell roof structure according to claim 1, wherein the solar cell panel has a frame, and the incombustible member is supported by the frame. Solar cell roof structure. 5. The solar cell roof structure according to claim 1, wherein the solar cell panel is attached to a support frame provided on the roof surface, and the noncombustible member is supported by the support frame. The solar cell roof structure is characterized by being. 6. A solar cell comprising a solar cell body and an incombustible member arranged below the solar cell body, and a space is provided between the solar cell body and the incombustible member. panel. 7. A solar cell comprising a solar cell body and a non-combustible member having a gas permeability disposed below the solar cell body, the non-combustible member being directly attached to the solar cell body. panel. 8. The solar cell panel according to claim 7 or 8, wherein the non-combustible member is formed of a metal plate, and a ventilation hole is formed in the metal plate. .