JP4749865B2 - Solar cell module-integrated roof material, fixing member used therefor, and method for replacing solar cell module - Google Patents

Description

  The present invention relates to a solar cell module integrated roof material in which a solar cell module is mounted on a roof material laid on a roof surface of a building, a solar cell module fixing member, and a replacement method.

  Solar cells are used by being attached to the roofs and windows of buildings, and the demand is increasing not only for business use but also for general housing. Various roof materials with solar cells have been developed for general housing.

  Conventionally, in a solar cell module-integrated roof material, the solar cell module is integrally fixed to the roof material 104 using a fixing member 102 having a U-shaped side cross section having bolts 103, as shown in FIG. . That is, the solar cell module 101 is sandwiched between the U-shaped fixing members 102 via the buffer material 105. And the fixing member 102 holding the solar cell module 101 is a state in which the bolt 103 fixed to the installation piece 102 a is inserted into the through hole 106 of the roof material 104 and the installation piece 102 a is in close contact with the surface of the roof material 104. Thus, the nut 107 is screwed onto the bolt 103 so as to be fixed on the roof material 104.

  For example, Patent Documents 1 and 2 disclose a technique for fixing a solar cell module to a roof material using a U-shaped fixing member having a bolt on an installation side on the roof material.

JP 2001-32454 A JP 2001-90264 A

  By the way, the structure in which the solar cell module is integrally fixed to the roof material using the U-shaped fixing member having the bolt has a problem that it is difficult to replace the solar cell module after construction on the roof surface. That is, after the construction, the fastened nut is located on the back side of the roofing material, and thus the solar cell module cannot be removed from the roofing material together with the fixing member by loosening the nut. In this case, the solar cell module can be removed by cutting off the upper surface side piece of the fixing member, but the fixing member cannot be fixed again after replacement of the solar cell module.

  In patent documents 1 and 2, the eaves side is fixed by using a U-shaped fixing member having a bolt, and the ridge side is fixed by a removable member having a different structure.

  However, considering the production efficiency of the fixing member and the work efficiency of fixing the solar cell module to the roofing material, it is preferable that the number of parts and the types of work methods are smaller, and the fixing members on both the eaves side and the building side are It is desirable to make it common.

  In view of the above circumstances, the problem of the present invention is that the solar cell module can be easily replaced after the construction on the roof surface, and the solar cell module-integrated roof material with a high work efficiency by using a common fixing member, It is providing the fixing member and replacement | exchange method of a solar cell module.

1st of this invention is a fixing member for fixing a solar cell module to a base material, and comprising a solar cell module integrated roof material,
A side section that sandwiches the end portion of the solar cell module is substantially U-shaped, and includes a holding portion comprising an upper horizontal portion, a vertical portion, and a lower horizontal portion, an installation piece fixed to the base material, and a bolt attached to the installation piece And the lower horizontal portion and the installation piece are connected so that a predetermined gap is formed between the lower horizontal portion and the base material when the installation piece is fixed to the base material. And a connecting portion.

2nd of this invention is a solar cell module integrated roof material formed by fixing a solar cell module to a base material through a fixing member,
Using the first fixing member of the present invention,
The solar cell module is fixed to the base material by holding the end portion of the solar cell module by the holding portion of the fixing member and fixing the installation piece of the fixing member to the base material by a bolt and a nut. It is characterized by.

3rd of this invention is the replacement | exchange method of the solar cell module in the said 2nd solar cell module integrated roof material of this invention, Comprising:
After removing the upper horizontal part of the holding part of the fixing member and removing the solar cell module, the vertical part of the holding part of the fixing member is cut off, a new solar cell module is arranged, and the side section is substantially U-shaped. A clamping member composed of a horizontal part, a vertical part, and a lower horizontal part, and a new solar cell module is used as a base by clamping the lower horizontal part left on the holding part of the fixing member and the end of the new solar cell module. It is characterized by being fixed to the material.

4th of this invention is a supporting member which supports a solar cell module on a base material, when fixing a solar cell module to a base material and comprising a solar cell module integrated roof material,
A lower horizontal portion that supports the end of the solar cell module from the back surface, an installation piece fixed to the base material, a bolt attached to the installation piece, a nut fastened to the bolt, and the installation piece as a base material And a connecting portion for connecting the lower horizontal portion and the installation piece so that a predetermined gap is formed between the lower horizontal portion and the base material when fixed to the base member.

5th of this invention is a solar cell module integrated roof material formed by fixing a solar cell module to a base material,
Using the fourth support member of the present invention and a clamping member having a substantially U-shaped side section and comprising an upper horizontal portion, a vertical portion, and a lower horizontal portion,
The end portion of the solar cell module is disposed on the lower horizontal portion of the support member, the end portion of the solar cell module and the lower horizontal portion of the support member are clamped by the clamping member, and the bolt and nut of the support member The solar cell module is fixed to the base material by fixing the installation piece of the support member to the base material.

  According to the present invention, a gap of a predetermined distance or more is formed between the roof material (base material) and the holding portion by the connecting portion that connects the holding portion of the fixing member and the installation piece. When exchanging, a part of the re-fixing clamping member is allowed to enter the gap between the holding part and the roof material, and the end part of the solar cell module can be held together with the lower horizontal part left in the holding part. it can. Therefore, it is possible to easily replace only the solar cell module at an arbitrary position after the construction on the roof surface, and it is possible to improve the working efficiency by using a common fixing member.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. However, the present invention is not limited to the embodiments.

[First Embodiment]
First, a preferred embodiment of the solar cell module-integrated roof material of the present invention will be described with reference to FIGS. 1 to 6, and the solar cell module-integrated roof material of the present invention and a fixing member that is a component thereof will be described.

  FIG. 1 is a side sectional view showing a solar cell module-integrated roof material according to a first embodiment of the present invention, FIG. 2 is a perspective view, and FIGS. 3 and 4 are respectively the solar cell module-integrated roof material. It is the perspective view and side sectional view of the state which constructed | assembled on the roof surface. FIG. 5 is a side sectional view of one end of the solar cell module-integrated roof material. FIG. 6 is a schematic diagram showing a fixing member in the solar cell module-integrated roof material of the first embodiment and a clamping member for solar cell module replacement described later.

  As shown in FIGS. 1 and 2, the solar cell module-integrated roofing material 1 of this example includes a solar cell module 2 that is a photoelectric conversion device on a base material 10 as a roofing material via a fixing member 20. It is fixed integrally.

  The solar cell module 2 of this embodiment is a thin solar cell module, has a flat rectangular parallelepiped shape, and the photoelectric conversion element is sealed with a sealing material.

  The base material 10 on which the solar cell module 2 is mounted is formed of, for example, cement roof material, clay tile, metal tile, or the like. The base material 10 may have a simple flat plate shape, but in order to resemble the appearance of the roof material, the module mounting portion 11 is formed with a thin plate thickness and protrudes toward the back side at the eave side end portion. A seating portion 12 is formed.

  Further, on the back surface side of the ridge side end portion of the base material 10, a leg 13 having an inverted trapezoidal cross section that comes into contact with a field plate 3 to be described later is formed. A vertical wrap portion 14 on which 10 seat portions 12 are seated is extended. The vertical wrap portion 14 protrudes with a plate thickness larger than that of the module mounting portion 11, and when the solar cell module 2 is disposed on the module mounting portion 11, the upper surface of the solar cell module 2 and the vertical wrap portion The upper surface of 14 is formed in the same plane. The vertical wrap portion 14 is provided with a fastening hole 17 for fixing with a nail, a screw or the like.

  Furthermore, a lateral wrap portion 15 is provided at one end portion in the left-right direction (a direction orthogonal to the eaves-ridge direction) to overlap the adjacent base material 10 on the upper side. The lateral wrap portion 15 is disposed in a lower space 16 defined by the bent seat portion 12 at the other end portion of the base material 10. In this example, the lateral wrap portion 15 is extended to the left end portion of the base material 10 on the paper surface. However, the present invention is not limited to this, and may be extended to the right end portion of the base material 10.

  As shown in FIGS. 3 and 4, the solar cell module-integrated roof material 1 is constructed so that roof materials such as tiles are laid vertically and horizontally along the roof surface of the field board 3 or the like. That is, the solar cell module-integrated roof material 1 is disposed on the base plate 3, and a nail or a screw (not shown) is fastened and fixed to the fastening hole 17 of the vertical wrap portion 14. As shown in FIG. 3, the solar cell module-integrated roofing material 1 is arranged in the left-right direction so that the right end of the solar cell module-integrated roofing material 1 adjacent to the left overlaps the lateral wrap portion 15. . As shown in FIG. 4, the solar cell module-integrated roof material 1 in the eaves-ridge direction is arranged on the ridge-side solar cell module-integrated type on the vertical wrap portion 14 of the eave-side solar cell module-integrated roof material 1. It is constructed so that the seating portion 12 of the roofing material 1 is seated and overlapped. Although a waterproof roof material may be laid on the base plate 3, the construction method of the solar cell module-integrated roof material 1 of this example is basically the same.

  The plurality of solar cell modules 2 laid vertically and horizontally on the roof surface in this manner are electrically connected in series or / and in parallel by a connection cable (not shown).

  As shown in FIGS. 5 and 6, the fixing member 20 of this example has a U-shaped side cross-sectional shape, a holding portion 21 that holds the end portion of the solar cell module 2 from the front and back sides, and the base material 10. An installation piece 22 arranged so as to contact the upper side, and a bolt 23 a and a nut 23 b provided on the installation piece 22 and fixed to the base material 10 are provided. In this example, both ends in the width direction of the solar cell module 2 are held by two pairs of fixing members 20 on the left and right sides.

  The holding portion 21 is opposed to the upper horizontal portion 21a facing the front surface side of the solar cell module 2, the lower horizontal portion 21b facing the back surface side, and the side surface thereof, and the upper horizontal portion 21a and the lower horizontal portion 21b are It is comprised from the vertical part 21c to connect, and these are exhibiting U shape continuously.

  The installation piece 22 and the lower horizontal part 21b of the holding part 21 are connected by a connecting part 24. As shown in FIG. 6A, the lower horizontal part 21b and the installation piece 22 are not coplanar and are parallel to each other. The connecting portion 24 is inclined with respect to the lower horizontal portion 21 and the installation piece 22 to connect them. Thereby, when the installation piece 22 is brought into contact with the base material 10 and fixed by the bolt 23a and the nut 23b, a gap S of a predetermined interval or more is formed between the base material 10 and the lower horizontal portion 21b. . Here, the gap S equal to or greater than a predetermined interval means that the gap S is equal to or greater than the plate thickness t of the lower horizontal portion 40b of the holding member 40 for re-fixing after module replacement shown in FIG. 6B.

  The bolt 23 a is erected on the installation piece 22 toward the base material 10 and is erected so as to penetrate the base material 10. Therefore, as shown in FIGS. 1 and 5, through holes 18 for inserting the bolts 23 a are formed at four locations near the four corners of the base material 10, and the bolts 23 a are passed through the base material 10. The base material 10 as the roof material and the solar cell module 2 are integrated with each other through the fixing member 20 by being inserted into the hole 18 and fastening the nut 23b to the bolt 23a protruding to the back surface side of the base material 10. Fixed.

  Examples of the material of the fixing member 20 include iron, steel, stainless steel, aluminum alloy, other metals, and synthetic resins.

  In order to prevent water leakage from the through-hole 18 established in the base material 10, a fixed or irregular sealing material is interposed between the installation piece 22 of the fixing member 20 and the base material 10, or the through-hole 18. The inside may be filled with a sealing material.

  Moreover, the nut 23b should just be suitable for the volt | bolt 23a, However, In order to ensure fastening fixation, it is preferable to use the hexagon nut with a flange provided with the serrate.

  When the end portion of the solar cell module 2 is clamped by the holding portion 21 of the fixing member 20, the buffer material 30 is interposed between the holding portion 21 and the solar cell module 2 in order to prevent damage to the solar cell module 2. It is preferable to interpose. The buffer material 30 only needs to have elasticity, and examples thereof include rubber, elastomer, and synthetic resin.

  Next, a method for replacing the solar cell module 2 in the solar cell module-integrated roof material 1 of FIG. 1 will be described with reference to FIG. 7A is a side sectional view showing a state in which the upper horizontal portion 21a of the fixing member 20 is cut away. (B) is a sectional side view showing a state in which the solar cell module 2 and the buffer material 30 are removed. (C) is a side sectional view showing a state in which the vertical portion 21c of the fixing member 20 is cut away. (D) is a side sectional view showing a state in which a replacement solar cell module 2 ′ and a buffer material 30 ′ are installed. (E) is a sectional side view showing a state in which a re-fixing clamping member 40 is installed.

  The solar cell module 2 according to this example is replaced by a solar cell module for replacement after removing the defective solar cell module 2 after the solar cell module-integrated roofing material 1 configured as described above is applied to the roof surface. It is a method of exchanging to 2 ′.

  First, as shown in FIG. 7A, the upper horizontal portion 21a in the holding portion 21 of the fixing member 20 that holds the end in the width direction of the solar cell module 2 from the front and back sides is cut out, and FIG. As shown in FIG. 2, the solar cell module 2 is removed together with the buffer material 30.

  Further, as shown in FIG. 7C, when the vertical portion 21c of the holding portion 21 of the fixing member 20 is cut away, the holding portion 21 has a lower horizontal portion 23b continuous through the installation piece 22 and the connecting portion 24. Only remains.

  Then, as shown in FIG. 7 (d), the replacement solar cell in which the upper horizontal portion 21a and the vertical portion 21c are cut out and the buffer material 30 ′ is mounted on the holding portion 21 where only the lower horizontal portion 21b remains. Module 2 'is mounted.

  In this state, since the connecting portion 24 exists between the lower horizontal portion 21 b and the installation piece 22, a gap S is formed between the lower horizontal portion 21 b and the base material 10. Using this gap S, as shown in FIG. 7E, a re-fixing clamping member 40 is mounted so as to clamp the end portion of the solar cell module 2 from the outside together with the lower horizontal portion 23b. . The re-fixing clamping member 40 in this example has a shape similar to the holding portion 21 of the fixing member 20, the upper horizontal portion 40 a and the lower horizontal portion 40 b facing each other, and the vertical connecting them. Part 40c, and these are continuously U-shaped in cross section. The sandwiching member 40 is mounted with the lower horizontal portion 40b inserted into the gap S formed between the lower horizontal portion 23b of the fixing member 20 and the base member 10, so that as described above, the gap S Is set to be equal to or greater than the plate thickness t of the lower horizontal portion 40b of the clamping member 40.

  In addition, the distance between the upper horizontal portion 40a and the lower horizontal portion 40b of the sandwiching member 40, that is, the height D of the vertical portion 40c is (the thickness of the solar cell module 2 ′ + the plate thickness of the lower horizontal portion 21b of the fixing member 20+ It is set to be approximately equal to the thickness of the buffer material 30 ′ × 2) or slightly smaller by the amount of compression of the buffer material 30 ′.

  In this example, as shown in FIG. 7, the case where the upper horizontal portion 21a of the ridge-side fixing member 20 is excised and the module 2 is replaced is described. The module 2 may be replaced by excising 21a. That is, when the solar cell module 2 is removed, the solar cell module 2 can be removed by lifting the solar cell module 2 upward at the excised fixing member 20 and sliding it to the excised side as it is. When installing the replacement solar cell module 2, contrary to when removing it, the solar cell module 2 is inserted and held while being slid to the fixing member 20 on the uncut side, and the fixed member 20 on the cut side is removed. The solar cell module 2 can be installed by lowering the solar cell module 2 upward. The solar cell module 2 can be replaced by excising the holding portion 21 of the one fixing member 20 on the ridge side or the eave side. However, the fixing members 20 on both the ridge side and the eave side are excised and replaced. You may do the work.

  However, when cutting the upper horizontal portion 21a of the fixing member 20 on the ridge side, a gap sufficient to attach the clamping member 40 is formed between the vertical wrap portion 14 and the solar cell module 2 ′. Although it is necessary, when exchanging the module 2 by excising the upper horizontal portion 21a of the eaves-side fixing member 20, there is no member obstructing the attachment of the clamping member 40 on the eaves side. Easy.

  In order to prevent displacement of the sandwiching member 40, the sandwiching member 40 and the base material 10 or the sandwiching member 40 and the lower horizontal portion 21b may be bonded with an adhesive or the like.

  As described above, according to the solar cell module-integrated roofing material 1 of the present invention, the connecting portion 24 allows a predetermined distance between the lower horizontal portion 21b and the base material 10 (the lower horizontal portion 40b of the clamping member 40). A gap S equal to or greater than the plate thickness t) is formed. Thus, when the upper horizontal portion 21a and the vertical portion 21c of the holding portion 21 are cut and the solar cell module 2 is replaced with 2 ′, the lower horizontal portion 40b of the holding member 40 is replaced with the lower horizontal portion 21b of the fixing member 20. And the base material 10 can be inserted into the gap S between the lower horizontal portion 21b and the widthwise end of the solar cell module 2 from the outside. Therefore, even after the solar cell module-integrated roof material 1 is constructed on the roof surface, only the solar cell module 2 at an arbitrary location can be easily replaced. Moreover, by making all the fixing members 20 common, the number of parts can be reduced and the working efficiency can be improved.

  In this example, the upper horizontal part 21a and the vertical part 21c of the holding part 21 are excised to replace the solar cell module 2. However, if at least the upper horizontal part 21a is excised, the solar cell module 2 can be replaced. It becomes possible. In this case, what is necessary is just to adjust suitably so that the production dimension of the clamping member 40 can be exchanged.

[Second Embodiment]
In the present invention, the fixing member 20 shown in FIG. 5 is combined with the fixing member 20 after the solar cell module 2 is replaced (that is, the form in which the upper horizontal portion 21a and the vertical portion 21c are cut off) and the clamping member 40. The same effect can be obtained by adopting the configuration.

  That is, the supporting member 50 shown in FIG. 8 and the clamping member 40 shown in FIG. The support member 50 has a form in which the upper horizontal portion 21a and the vertical portion 21c of the holding portion 21 of the fixing member 20 in FIG.

  In this example, the state immediately after the solar cell module 2 is attached to the base material 10 is the same as that after the solar cell module 2 of the solar cell module-integrated roof material 1 of the first embodiment is replaced with 2 ′. When the solar cell module 2 ′ is replaced in this state, the sandwiching member 40 is removed, the solar cell module 2 ′ is replaced, and then the removed sandwiching member 40 is attached again or a new sandwiching member 40 is replaced. To complete the replacement work.

  Therefore, in this example, the same effects as the solar cell module-integrated roofing material 1 of the first embodiment are basically obtained. However, as described above, when the solar cell module 2 is replaced, the first embodiment has the same effect. Thus, since it is not necessary to cut off the upper horizontal portion 21a, the efficiency of the replacement work can be improved.

  In this example as well, when removing the clamping member 40, the upper horizontal portion 41a may be temporarily cut, the solar cell module 2 may be removed, and the clamping member 40 may be removed.

  When an adhesive is used to fix the solar cell module 2 to the support member 50 and the clamping member 40, a saw is inserted between the solar cell module 2 and the base material 10 when the solar cell module 2 is replaced. A cutting tool such as a knife or a knife is inserted to cut the adhesive layer.

  FIG. 9 shows a perspective view of the clamping member 40 used in the present invention. In the present invention, as shown in FIG. 9A, the lower horizontal portion 40b of the clamping member 40 may have a configuration in which the end portion is cut off vertically like the upper horizontal portion 40a and the vertical portion 40c. As shown in FIG. 9B, the lower horizontal portion 40c is formed between the lower horizontal portion 21b and the base member 10 by forming the guide taper portion 60 inclined downward toward the outer sides at both ends. It becomes easy to insert, and mounting | wearing of the clamping member 40 becomes easy. Furthermore, as shown in FIG. 9 (c), by extending the guide taper portion 60 that protrudes outward in the left-right direction and inclines downward toward the outer side at both ends of the lower horizontal portion 40b, the holding member 40 is extended. Insertion into the gap S becomes easier.

It is a sectional side view which shows one Embodiment of the solar cell module integrated roof material of this invention. It is a perspective view of the solar cell module integrated roof material of FIG. FIG. 2 is a perspective view of a state in which the solar cell module-integrated roof material of FIG. 1 is constructed on a roof surface. It is a sectional side view of the state which constructed the solar cell module integrated roof material of FIG. 1 on the roof surface. It is a fragmentary sectional view of the solar cell module integrated roof material of FIG. It is a schematic diagram which shows the fixing member used for the solar cell module integrated roof material of FIG. 1, and the clamping member for solar cell module replacement | exchange. It is a fragmentary sectional view which shows the replacement | exchange process of the solar cell module in the solar cell module integrated roof material of FIG. It is a schematic diagram which shows one Embodiment of the supporting member of this invention. It is a perspective view which shows the structural example of the clamping member for replacement | exchange of the solar cell module used for this invention. It is a sectional side view which shows the principal part in the conventional solar cell module integrated roof material.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Solar cell module integrated roof material 2,2 'Solar cell module 3 Base plate 10 Base material 11 Module mounting part 12 Seating part 13 Leg part 14 Longitudinal wrap part 15 Lateral wrap part 16 Lower space 17 Fastening hole 18 Through Hole 20 Fixing member 21 Holding part 21a Upper horizontal part 21b Lower horizontal part 21c Vertical part 22 Installation piece 23a Bolt 23b Nut 24 Connection part 30, 30 'Buffer material 40 Holding member 40a Upper horizontal part 40b Lower horizontal part 40c Vertical part 50 Support Member 60 Guide taper portion 101 Solar cell module 102 Fixing member 102a Installation piece 103 Bolt 104 Roof material 105 Buffer material 106 Through hole 107 Nut S Gap t Plate thickness D Spacing of the sandwiching member (height of the vertical portion)

Claims (5)

A fixing member for constituting a solar cell module-integrated roof material by fixing the solar cell module to the base material,
A side section that sandwiches the end portion of the solar cell module is substantially U-shaped, and includes a holding portion comprising an upper horizontal portion, a vertical portion, and a lower horizontal portion, an installation piece fixed to the base material, and a bolt attached to the installation piece And the lower horizontal portion and the installation piece are connected so that a predetermined gap is formed between the lower horizontal portion and the base material when the installation piece is fixed to the base material. And a connecting member. A solar cell module-integrated roof material formed by fixing a solar cell module to a base material via a fixing member,
Using the fixing member according to claim 1,
The solar cell module is fixed to the base material by holding the end portion of the solar cell module by the holding portion of the fixing member and fixing the installation piece of the fixing member to the base material by a bolt and a nut. A solar cell module-integrated roofing material. It is the replacement | exchange method of the solar cell module in the solar cell module integrated roof material of Claim 2, Comprising:
After removing the upper horizontal part of the holding part of the fixing member and removing the solar cell module, the vertical part of the holding part of the fixing member is cut off, a new solar cell module is arranged, and the side section is substantially U-shaped. A clamping member composed of a horizontal part, a vertical part, and a lower horizontal part, and a new solar cell module is used as a base by clamping the lower horizontal part left on the holding part of the fixing member and the end of the new solar cell module. A solar cell module replacement method in a solar cell module-integrated roofing material, wherein the solar cell module-integrated roofing material is fixed to a material. A support member for supporting the solar cell module on the base material when the solar cell module is fixed to the base material to constitute the solar cell module-integrated roof material,
A lower horizontal portion that supports the end of the solar cell module from the back surface, an installation piece fixed to the base material, a bolt attached to the installation piece, a nut fastened to the bolt, and the installation piece as a base material A support member comprising: a connecting portion that connects the lower horizontal portion and the installation piece so that a predetermined gap is formed between the lower horizontal portion and the base member when fixed to the base member. A solar cell module-integrated roof material obtained by fixing a solar cell module to a base material,
Using the support member according to claim 4 and a sandwiching member having a substantially U-shaped side section and comprising an upper horizontal portion, a vertical portion, and a lower horizontal portion,
The end portion of the solar cell module is disposed on the lower horizontal portion of the support member, the end portion of the solar cell module and the lower horizontal portion of the support member are clamped by the clamping member, and the bolt and nut of the support member The solar cell module-integrated roofing material, wherein the solar cell module is fixed to the base material by fixing the installation piece of the support member to the base material.

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