JP3386769B2 - Solar cell integrated exterior material - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an exterior material integrally provided with a solar energy conversion device such as a solar cell module, and more particularly to an exterior material suitable for a fireproof structure.

[0002]

2. Description of the Related Art In recent years, attention has been paid to solar thermal energy as a complement to fossil energy and nuclear energy, and its importance is increasing with the depletion of fossil energy and the danger of nuclear energy. In terms of solar cell module technology development, which is one of the technologies for utilizing solar thermal energy, the "Outer package integrated solar cell module" is aimed at reducing the total cost centered on the New Energy and Industrial Technology Development Organization (NEDO). Research and development is progressing.

[0003]

However, the components of the solar cell module and the accessory parts such as the terminal box include flammable ones, and when the terminal box or the like is exposed to the back side of the exterior material. Is a structure that provides an opening in the exterior material, and the provisions of the Building Standards Act (Article 22, 25, 63) that "Must be made of non-combustible material or must be wiped" regarding the material and construction method used for the roof Will not be adapted. That is, with the above configuration, heat may be transferred to the back surface of the solar cell module due to a flying fire or the like in the event of a fire, the terminal box may be melted, and may fall onto the roof substrate or the like to cause ignition. In the worst case, there is a possibility that the solar cell module has a hole, a fire penetrates through the opening, and the fire spreads to the roof substrate or the attic.
On the other hand, the Building Standards Act relates to "special materials and construction methods",
For buildings that use special building materials, etc., if the Minister of Construction recognizes that the building materials, etc., have performance equivalent to or higher than the performance specified by the Building Standards Act, it states that the above disaster prevention regulations do not apply. (Article 38). Therefore,
It is an object of the present invention to provide a solar cell-integrated exterior material that can exhibit the same or higher performance as when the roof is made of a noncombustible material or is covered with the roof and contributes to a fireproof structure.

[0004]

In order to solve the above problems, a solar cell module is mounted on the front surface side of a face plate portion, and the terminal box is exposed to the back surface side through an opening provided in the face plate portion. Regarding the material, a fire cell-integrated exterior material in which a receiving member protruding to the back side is arranged in the opening is provided (the invention according to claim 1).

The fixing range of the solar cell module may be substantially the entire surface of the face plate portion of the exterior material, or may be a partial area such as substantially half, and the fixing range is arbitrary. The receiving member is for making the exterior material exhibit a performance equal to or higher than the performance of "building or covering the roof with a non-combustible material", and needs to be a non-combustible material.

According to the above structure, even if heat such as a flying flame is transferred to the exterior material or the back surface of the solar cell module and the terminal box is melted, the receiving member can prevent the terminal box from dropping. Further, even if a hole is opened in the solar cell module above the opening, the receiving member can prevent the penetration of the fire.

In order to mount the receiving member according to the above invention, the receiving member is locked in the opening (claim 1).
Ming). Since the receiving member is locked in the opening, the mounting method is simple, and the receiving member can be prevented from falling out of the opening.

In each of the above inventions, it is preferable to apply a fireproof filler or the like to the receiving member (the invention according to claim 2 ). Even a receiving member having a simple structure can be made a complete receiving member by using a fireproof filler such as a fireproof putty or a fireproof seal together.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the above inventions will be described below with reference to the drawings. 1 (a) is a plan view of the solar cell integrated exterior material, FIG. 1 (b) is a side view of the exterior material, FIG. 2 is a back view of the exterior material, and FIG. 3 is an exploded perspective view of the exterior material.
FIG. 4 is a perspective view of a main part of an exterior material having an opening and a receiving member attached to the opening. Note that, in each of the above-mentioned drawings and each of the drawings to be described later, the same configurations are denoted by the same reference numerals, and redundant description is omitted.

As shown in FIGS. 1 to 3, a solar cell integrated exterior material (hereinafter referred to as an integrated exterior material) 1 according to the embodiment is a face plate surface 20 of an exterior material 2 which is a roofing roof board.
1, the plurality of solar cell modules 21 are integrally mounted, and the terminal box 3 fixed to the back surface 210 of each solar cell module 21 is exposed from the opening portion 200 of the face plate portion 20 to the back surface 202 of the face plate portion. The receiving member 4 is attached to the portion 200.

The exterior material 2 is an exterior material for a horizontal roof,
As shown in FIG. 3, the eaves side engaging portion 2 is provided on the eaves side end of the face plate portion 20.
2, and a ridge-side engaging portion 23 is formed at the ridge-side end. The exterior material 2 is made of a metal material such as a surface decorative steel plate, a laminated steel plate, a plated steel plate, a stainless steel plate, an aluminum alloy plate, a titanium alloy plate, a copper plate, a brass plate or a lead plate, or a non-metal material such as a non-combustible material. There is. When the exterior material is a metal plate material, it is formed by roll forming, press forming, or a combination thereof. In the case of a non-metallic material, it is mainly molded using a mold. The plate thickness is not particularly limited and is approximately 0.4 to 1.6 mm.

The opening 200 of the exterior material 2 has a back surface 20.
The terminal box 3 is faced to the second side, and the terminal box 3 can be dropped from the front surface 201 side.
Form as small as possible. In this embodiment, the opening 200 is formed substantially at the center of the exterior material 2, but the position thereof is not limited.

On the surface 201 of the face plate portion, solar cell modules 21, 21, 21 ... This fixing range is not limited to substantially the entire surface of the face plate surface 201, but may be arbitrary and may be a partial area such as approximately ½ of the face plate surface 201.

Each module 21 has, for example, a back surface 210.
And a light-transmissive filling encapsulant layer laminated thereon for sealing a plurality of solar cells, and a light-transmissive support substrate such as glass or polycarbonate laminated thereon. The encapsulating material forming the translucent filling encapsulating material layer may be ethylene-vinyl acetate copolymer (EVA), or may be a flame retardant ternary fluoropolymer. The configuration of each module 21 is not limited to these, and may include a known configuration example or a solar cell module having a new configuration developed in the future.

The solar cell module 21 has an exterior material 2
Decorative covers 24 and 25 fixed to the left and right ends of the battery, and a battery fixing frame 26 fixed to the eaves side engaging portion 2 of the exterior material.
By this, it is stably attached. The code "2
Reference numeral 7 ”indicates a connecting portion for connecting the adjacent integral type exterior materials 1 and 1 in the beam direction.

The terminal box 3 collects the input / output terminals of the solar cell module 21 and has a thin cube shape. As shown in FIG. 5, a sealing or the like is formed on the back surface 210 of the module 21. It is pasted by.

The receiving member 4 receives the terminal box 3 and causes the exterior material 2 to exhibit the performance of a fireproof structure. The receiving member 4 has a size corresponding to the opening 200, and the terminal box 3 is attached to the receiving member 4. Any structure can be used as long as it can be stored. As materials, steel plate, aluminum alloy plate, titanium alloy plate,
A metal such as a copper plate, a brass plate, or a lead plate, which may be of the same type as that of the exterior material 2, and other non-combustible materials such as ceramics which comply with the building standard law are used.

The receiving member 4 is, as shown in FIG.
Bottom surface 40, left and right side surfaces 41, 42 and left and right openings 43,
44 and flange portions 45 and 46 extending outward from the upper portions of the left and right side surfaces 41 and 42 and extending along the face plate portion of the exterior material 2 and having a substantially dish-shaped cross section.

The bottom surface 40 has substantially the same size as the opening 200, and the left and right side surfaces 41 and 42 may be formed to have substantially the same height and width as the terminal box 3. The bottom surface 40 may be smaller than the opening 200 and may be substantially the same as or more than the bottom surface of the terminal box 3. Each of the side surfaces 41 and 42 may have a substantially vertical shape or an inclined shape.
Further, the height width of each side surface 41, 42 may be greater than or equal to the height width of the terminal box 3.

The flange portions 45 and 46 are portions which are locked to the face plate portion surface 201 around the opening portion 200 and have a lateral width substantially the same as the width of the left and right side surfaces 41 and 42.
It has an extension width that can prevent it from falling out of the opening 200. Then, the bottom surface 40 is dropped from the side of the face plate portion surface 201 into the opening portion 200, and the flange portions 45 and 46 are locked to the face plate portion surface 202. As described above, since the receiving member 4 may be locked in the opening 200, the mounting is easy, and unlike the case where the receiving member 4 is fixed with an adhesive or the like, the receiving member 4 is physically attached.
Is difficult to come off from the opening 200. Therefore, the solar cell module 21 can be
Even if the terminal box 3 is damaged and the flammable terminal box 3 is melted by the heat of the fire, the terminal box 3 falls onto the roof substrate,
Also, to prevent it from falling into the back of a hut or the like and causing ignition,
Further, it is possible to prevent the penetration of the fire.

The openings 43 and 44 of the receiving member 4 also serve as outlets for the cables 31 and 32 of the terminal box 3, and the structure of the receiving member 4 is simplified and can be manufactured at low cost. ing. The receiving member 4
After the output cables 31, 32 of the terminal box 3 are led out from any of the openings 43, 44 of
44 may be provided with a fireproof putty or a fireproof seal. If a space between the openings 43 and 44 of the receiving member 4 and the opening 200 of the exterior member 2 is filled with a fireproof putty or the like, a more reliable fireproof structure can be obtained.

In the integral type exterior material 1 configured as described above, as shown in FIGS. 6 and 7, the opening portion 200 for the terminal box 3 has the receiving member 4 made of a non-combustible material.
As a result, the integrated exterior material 1 can be made to exhibit a performance equal to or higher than the performance of "building or roofing a roof with a noncombustible material".

The receiving member according to the present invention is not limited to the structure of the receiving member 4 of the above-mentioned embodiment, and may be composed of at least two pieces of flange portions and two side surfaces. It may be configured. (B) A receiving member having three side surfaces, for example, one side of the openings 43 and 44 through which the cables 31 and 32 from the terminal box 3 are introduced, and a side surface that closes the other side of the flange portion of the two pieces is provided upright. You may. (B) A receiving member having four side surfaces, for example, a side surface that closes the openings 43 and 44 of the terminal box 3 is erected on the flange portion of the two pieces, and the cable 31, 3 is provided on one of the side surfaces.
A lead-out hole for 2 is formed. (C) A receiving member having three side surfaces for the three flange portions, for example, a cable 31, for the receiving member of (a) above.
Except for the 32 lead-out opening, a flange may be formed on the upper part of the side surface that closes the opening. (D) One piece of the flange portion is added to the receiving member having four side surfaces with respect to the three-piece flange portion, for example, the receiving member of the above (b).

(E) As shown in FIG. 8, each side surface 4
1, 42, 47 and 48 are bent and erected, and one of them is provided with a lead-out hole 480 for the cables 31 and 32.
And the flange portions 45, 46, 470, 481 may be provided on the upper portions of the side surfaces 41, 42, 47, 48, respectively. Further (f) As shown in FIG. 9, the receiving member 4B may be provided with a flange portion 49 formed by integrally molding the flange portions 45, 46, 470, 481.

These have a higher fire protection structure than that of the receiving member 4. Further, the locking with respect to the exterior material 2 becomes reliable in proportion to the number of flange portions. Further, in the case of three side surfaces, the cables 31, 32 are
Has a structure that makes it easy to derive. Further, in the case of four side surfaces, it is possible to prevent the terminal box 3 from being displaced and falling. The openings of the receiving members and the side surfaces 4
Notches of 1, 42, 47, 48 and receiving members 4A and 4B
A fireproof putty or the like may be applied to the outlet hole 480 of the above.

[0026]

According to the invention described in claim 1, heat such as a flying flame is transferred to the exterior material and the back surface of the solar cell module,
Even if the terminal box is melted, the receiving member can prevent the terminal box from dropping. Further, even if a hole is opened in the solar cell module above the opening where there is a possibility of penetration of the fire, the receiving member can prevent the penetration of the fire. Therefore, it is possible to make the integrated exterior material exhibit a performance equal to or higher than the performance of "building or covering the roof with a noncombustible material".

According to the first aspect of the invention, since the receiving member is locked in the opening, the mounting method is simple, and the receiving member can be prevented from falling out of the opening.

According to the second aspect of the present invention, even a receiving member having a simple structure can be made a complete receiving member by using a fireproof putty together.

[Brief description of drawings]

FIG. 1A is a plan view of a solar cell integrated exterior material,
(B) is a side view of the exterior material,

FIG. 2 is a back view of the exterior material,

FIG. 3 is an exploded perspective view of the exterior material,

FIG. 4 is a perspective view of a main part of an exterior material having an opening and a receiving member serving as a receiving member attached to the opening.

FIG. 5 is a partial perspective view of a solar cell module showing a mounting position of a terminal box,

FIG. 6 is a partial perspective view of the exterior material showing the attachment positions of the terminal box and the receiving member,

7 is a cross-sectional view taken along the line EE of FIG.

FIG. 8 is a perspective view of a receiving member according to another example,

FIG. 9 is a perspective view of the receiving member.

[Explanation of symbols]

1 Solar Cell Integrated Exterior Material 2 Exterior Material 22 Eaves Side Engagement Part 23 Building Side Engagement Part 24 25 Decorative Cover 26 Battery Fixing Frame 27 Connection Part 200 Opening 201 Face Plate Part Front Surface 202 Face Plate Part Rear Surface 21 Solar Cell Module 210 Back Surface 3 terminal box 31 32 cable 4 4A 4B receiving member 40 bottom surface 41 42 47 48 side surface 43 44 opening 45 46 470 481 flange portion 480 lead-out hole

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Claims (2)

(57) [Claims] 1. A solar cell module is mounted on a front surface side of a face plate portion of an exterior material, a terminal box is made to face a back surface side through an opening portion provided in the face plate portion, and the opening portion is provided on a back surface side. while distributing the receiving member protruding, the receiving
A solar cell integrated exterior material for fire protection, characterized in that an armor member is locked to the opening . 2. The solar cell integrated exterior material according to claim 1, wherein the receiving member is provided with a fireproof filler or the like.