JP2016111896A - Solar cell module, roof structure, and eaves fixture of solar cell module - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a technique capable of suppressing occurrence of breakdown of a solar cell module and output drop caused thereby, even in the case of frameless structure where the solar cell panel is made thin.SOLUTION: In a solar cell module 4 including a planar solar cell panel 10 having a light-receiving surface, and a reinforcement member 15 fixed to the back surface of the solar cell panel 10, the solar cell panel 10 is provided with a cell sealing region 27 for sealing the solar cell. The reinforcement member 15 is a long member, and fixed to a position on the back surface of the cell sealing region 27 overlapping the solar cell array in the plan view.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a solar cell module. In addition, the present invention relates to a roof structure on which such a solar cell module is placed and an eaves-end fixture used to realize such a roof structure.

In recent years, solar cell modules have attracted attention as a new energy source due to increasing environmental awareness. This solar cell module has a structure including a solar cell panel which is a photoelectric conversion device capable of converting light energy into electric energy.
This solar cell panel includes a transparent electrode layer, a back electrode layer, and a photoelectric conversion element sandwiched between these two electrode layers. Then, carriers generated by irradiating the photoelectric conversion layer with light can be collected in the electrode layer and taken out to an external circuit.

Conventionally, such a solar cell module is attached to the roof of a building directly or via a metal fitting, or attached to a pedestal installed on a flat ground.
For example, Patent Document 1 related to the application of the present applicant discloses a structure in which a solar cell module is mounted on a roof via a metal fitting that is integrally attached to a slate roof tile.

JP 2011-163060 A

Here, the solar cell module includes a module with a frame attached to the outer peripheral portion and a frameless module without the frame. Since the frameless solar cell module is small and light, it has an advantage of being easy to mount and excellent in appearance.
More specifically, in a solar cell module with a frame, when it is mounted on a roof, the metal frame portion may appear more conspicuous than the peripheral portion. In this case, the metal portion impairs the sense of unity of the roof appearance, which is not preferable from the viewpoint of making the roof appearance beautiful.
On the other hand, in the frameless solar cell module, since there is no metal portion at the edge portion, a clean and beautiful appearance can be realized.

  In view of this, the present inventors considered to further reduce the thickness of the solar cell panel of the frameless solar cell module and attach it on the roof in order to further improve the appearance. However, if the solar cell panel is not formed with a frame and is formed thin, there is a problem that the strength of the solar cell module is weakened. That is, there is a possibility that the solar cell module may be damaged by a snow load or a blowing load due to a strong wind. And depending on the place where it was damaged, there is a possibility that the amount of power generation is reduced or the power generation is impossible.

  Accordingly, an object of the present invention is to provide a technique capable of suppressing the occurrence of breakage and the decrease in output caused by the damage even when the solar cell panel is thinned and has a frameless structure.

  Invention of Claim 1 for solving the said subject is a solar cell module provided with the flat member solar cell panel which has a light-receiving surface, and the reinforcement member fixed to the back surface of the said solar cell panel, The solar battery panel is provided with a cell sealing region for sealing solar cells, and in the cell sealing region, a plurality of solar cells arranged in a row are sealed, and the reinforcement The member is a long member, and the reinforcing member is fixed to a position overlapping with a row of the solar cells in a plan view in the back surface of the cell sealing region. is there.

In the solar cell module of the present invention, the long reinforcing member is attached at a position overlapping the row of solar cells in plan view. In other words, the reinforcing member extending in the same direction as the column direction overlaps each of the plurality of solar cells belonging to the column in plan view. For this reason, the intensity | strength of the part by which the photovoltaic cell is sealed can be improved, and generation | occurrence | production of the failure | damage of each photovoltaic cell can be suppressed.
Here, the portion where the solar battery cell is sealed is a portion having a relatively low strength, and is a portion where the output is reduced (or cannot be output) when further damaged. That is, in this invention, the fall of the output resulting from this can be prevented by improving the intensity | strength of the part by which the photovoltaic cell is sealed, and suppressing generation | occurrence | production of the failure | damage of a photovoltaic cell.

By the way, as a result of operating the roof structure disclosed in the prior art documents by the present inventors and examining the operation status thereof, it has been found that the eave side portion of the solar cell module is more easily damaged than the ridge side portion.
More specifically, for example, when a large amount of snow is piled up on the solar cell module, if time passes, a lump of snow accumulated on the ridge side may slide down the inclined surface of the solar cell module. In this case, the snow lump moves to the eaves side portion, so that the eaves side portion of the solar cell module receives a larger load than the ridge side portion. That is, it was found that the eaves side portion of the solar cell module is a portion that is susceptible to a large load during installation.

  On the other hand, the eaves side portion of the solar cell module is a portion where the solar cell module adjacent to the ridge side is far away and is relatively difficult to shadow. That is, it can be said that the power generation efficiency is high when the solar battery cells are arranged.

  The invention according to claim 2 provided on the basis of such knowledge is such that, in a state where the solar cell panel is laid in the building, the longitudinal direction of the solar cell panel is directed in the direction of the row of the building, and the lateral direction of the solar cell panel is the building. The center position of the cell sealing area in the eaves direction of the cell sealing region is a position closer to the eaves side than the center position in the eaves direction of the entire solar cell panel. The solar cell module according to claim 1, wherein:

In this invention, it has the structure which distributes a cell sealing area | region in the part from the eaves side which receives a bigger load. That is, it has a configuration in which a plurality of solar cells are placed on the eaves side.
In other words, in the present invention, the reinforcing member is attached at a position overlapping with the row of solar cells in plan view, and the solar cells that are easily damaged can be arranged near the eaves side end portion where a large load is applied. Thereby, power generation efficiency can be improved while preventing damage to the solar battery panel (solar battery cell).

  According to a third aspect of the present invention, the reinforcing member has a protruding portion that protrudes outward from the back surface side of the solar cell panel, and the protruding end surface of the protruding portion is formed on the solar cell panel. The solar cell module according to claim 1, wherein the solar cell module is a plane parallel to the back surface.

  The reinforcing member of the present invention has a protruding portion that protrudes outward from the back surface side, and has a highly rigid structure. In addition, by forming a flat surface parallel to the back surface on the protruding end surface of the protrusion, it is possible to prevent damage to the cable or the like even when a load is applied from above while the cable or the like is positioned below the reinforcing member. it can.

  The invention according to claim 4 is the solar cell module according to any one of claims 1 to 3, wherein the solar cell module is a metal member and has a cross-sectional shape of an inverted hat.

  According to such a configuration, it is possible to form a reinforcing member having high rigidity relatively easily.

  Invention of Claim 5 is provided with the some roof member, the solar cell module in any one of Claims 1 thru | or 4, and the eaves tip attachment tool for attaching the said solar cell module to the eaves part of a building. The eaves attachment fixture has a holding part for holding the eaves side part of the solar cell module, and a support base part for supporting the eaves side part of the solar cell module from below, The vicinity of the eaves side end of the solar cell module is held by the holding unit, and the portion where the reinforcing member that is on the ridge side of the eaves side end of the solar cell module is fixed is supported by the support base. It is a roof structure characterized by that.

  In the roof structure of this invention, the part to which the reinforcement member of the solar cell module is fixed is further supported by the support base part of the eaves-end fitting. As a result, a structure with higher load resistance can be obtained.

  The invention according to claim 6 is characterized in that the eaves edge fixture further includes a roof member holding recess for inserting an eave side end of the roof member located at the eave edge, and the holding part and the support base part are , Located above the roof member holding recess, the support base is formed in a cantilever shape so as to protrude to the ridge side, and further, a leg portion is formed at the protruding end. The leg portion is normally in a position separated from the roof member, and is in a state of being in contact with the roof member when a certain load is applied to the solar cell module fixed by the eaves edge fixture. The roof structure according to claim 5.

In the roof structure of this invention, the leg part is formed in the protrusion end part of the support stand part formed in the cantilever shape. In a normal state, the leg portion is at a position separated from the roof member, and when a load of a certain level or more is applied to the solar cell module, the leg member is in contact with the roof member.
That is, in normal times, the leg portion does not contact the roof member, and the roof member is not damaged. On the other hand, when a certain load or more is applied to the solar cell module, it is possible to contact the roof member and receive the load applied to the support base portion by the roof member. That is, it is possible to prevent damage to the solar cell module when an excessive load is applied while suppressing damage to the roof member as much as possible.

  The invention according to claim 7 further includes an intermediate fixture for fixing the two solar cell modules adjacently arranged in the eave ridge direction, and the intermediate fixture is a ridge of the solar cell module located on the eave side. An eaves-side holding recess for holding the side portion, and a ridge-side holding recess for holding the eave-side portion of the solar cell module located on the ridge side, and integrated with the solar cell module located on the ridge side The roof structure according to claim 5 or 6, wherein the fixed reinforcing member is located closer to the ridge side than the ridge side holding recess.

  According to this configuration, the ridge-side holding recess is located on the eaves side of the reinforcing member, and even if the reinforcing member is detached from the solar cell panel for some reason, the reinforcing member that slides toward the eaves side is the ridge-side holding recess. No further movement to the eaves side. Thus, the reinforcing member is not accidentally dropped from the roof, which is safe.

  The invention according to claim 8 is an eaves fitting for attaching a solar cell module to an eaves part of a building, and the building has a basic roof structure formed by arranging a plurality of roof members on a roof base. A holding part for holding the eaves side part of the solar cell module, a support base part for supporting the eaves side part of the solar cell module from below, and the eaves of the roof member located at the eaves edge A roof member holding recess for inserting a side end portion is provided, the holding portion and the support base are located above the roof member holding recess, and the support base protrudes toward the ridge side. In addition, a leg portion is formed at the projecting end portion, and the leg portion is normally spaced apart from the roof member, and the solar cell module has a certain amount or more. The load of If a eaves fitting of the solar cell module, characterized in that the contact with the roof member.

  According to the present invention, as described above, the eaves side portion of the solar cell module can be supported by the support base, and a structure with high load resistance can be obtained. In addition, it is possible to prevent damage to the solar cell module when an excessive load is applied while suppressing damage to the roof member as much as possible.

  According to the present invention, even when the solar cell panel is thinned and has a frameless structure, it is possible to suppress the occurrence of damage to the solar cell module and the decrease in output due to the damage.

It is a perspective view which shows the roof structure which concerns on embodiment of this invention. It is a perspective view which shows an example of the slate tile employ | adopted with the roof structure of FIG. It is a perspective view which shows a mode that the solar cell module of FIG. 1 was seen from the light-receiving surface side. It is a perspective view which shows a mode that the solar cell module of FIG. 1 was seen from the back surface side. It is a top view which shows the cell row | line sealed by the solar cell module of FIG. It is AA sectional drawing which shows the solar cell module of FIG. It is a partially broken perspective view which shows the reinforcement member attached to the solar cell module of FIG. It is BB sectional drawing which shows the solar cell module of FIG. 3, and expands and shows a side edge part. It is a perspective view which shows the eaves edge mounting bracket employ | adopted with the roof structure of FIG. It is a perspective view which shows the member for support bases of the eaves-end attachment metal fitting of FIG. It is a perspective view which shows the member for fixing the eaves-end attachment metal fitting of FIG. It is a front view which shows the fixing member of FIG. It is explanatory drawing which shows the assembly structure of the eaves tip attachment metal fitting of FIG. 9, and shows a mode that it assembles in order of (a)-(c). It is a side view which shows the eaves-end attachment metal fitting of FIG. It is a perspective view which shows a mode that the eaves edge attachment metal fitting of FIG. 9 was seen from the back side. It is a perspective view which shows the intermediate | middle attachment metal fitting employ | adopted with the roof structure of FIG. It is a disassembled perspective view which shows the intermediate | middle attachment metal fitting of FIG. It is sectional drawing which shows the intermediate | middle attachment metal fitting of FIG. It is a perspective view which shows a mode that the intermediate attachment metal fitting of FIG. 16 was seen from the back side. It is a perspective view which shows the construction procedure of the roof structure of this embodiment, and is a perspective view which shows the state which attached the eaves edge attachment metal fitting to the eaves edge of the roof base | substrate. It is sectional drawing which shows the state of FIG. It is explanatory drawing which shows the process following the process shown by FIG. 20, FIG. 21, and shows a mode that the 1st step lower slate roof tile is mounted | worn. It is explanatory drawing which shows the process following the process shown by FIG. 22, and shows a mode that the slate roof tile of the 1st step upper side is mounted | worn. It is sectional drawing which shows a mode that the 1st step lower slate roof tile and the 1st step upper slate roof tile located on it were attached. It is explanatory drawing which shows the process following the process shown by FIG. 23, 24, and shows a mode that the 2nd step | slate roof tile is arrange | positioned. It is explanatory drawing which shows the process following the process shown by FIG. 25, and shows a mode that the 2nd step | slate roof tile is fixed with an intermediate | middle attachment metal fitting. It is sectional drawing which shows a mode that the 2nd step | slate roof tile was fixed with the intermediate | middle attachment metal fitting. It is explanatory drawing which shows the process following the process of FIG.26, 27, and shows a mode that the 3rd step | slate roof tile is inserted in the 1st recessed part of an intermediate | middle attachment metal fitting. It is sectional drawing which shows a mode that the 3rd step | slate roof tile was fixed. It is a perspective view which shows a foundation roof structure. It is explanatory drawing which shows a mode that the eaves side of a 1st step | paragraph solar cell module is inserted in the holding | maintenance part of an eaves tip attachment metal fitting. 31 is a cross-sectional view showing a state in which the eaves side of the first-stage solar cell module is inserted into the holding part and the ridge side is placed on the intermediate mounting bracket (fixing part constituent member) from the state shown in FIG. FIG. FIG. 33 is a cross-sectional view showing a state in which a pressing plate member is attached to the first stage fixing portion constituent member and the ridge side of the solar cell module is pressed from the state shown in FIG. 32. It is a perspective view which shows the state of FIG. It is a perspective view which shows the state which performed the cable wiring of the solar cell module of the 1st step | paragraph from the state shown by FIG. From the state shown in FIG. 35, the eaves side of the second-stage solar cell module is inserted into the third recess of the first-stage intermediate mounting bracket, and the ridge-side is connected to the second-stage intermediate mounting bracket ( It is sectional drawing which shows a mode that it mounted on the fixing | fixed part structural member. FIG. 37 is a cross-sectional view illustrating a state in which a pressing plate member is attached to the second stage fixing portion constituent member and the ridge side of the solar cell module is pressed from the state illustrated in FIG. 36. It is explanatory drawing which shows the change of the attitude | position of the eaves tip attachment metal fitting when a load is applied to the solar cell module of the eaves side 1st stage, (a) shows normal time, (b) added the load more than fixed. Indicates the state. It is sectional drawing which expands and shows the A section of FIG. It is a side view which shows the eaves edge attachment metal fitting of a form different from FIG.

  Hereinafter, a roof structure 1 according to an embodiment of the present invention will be described in detail with reference to the drawings. In the following description, the front-rear direction, the up-down direction, and the left-right direction will be described based on the normal installation state shown in FIG. 1 unless otherwise specified.

  As shown in FIG. 1, the roof structure 1 of the present embodiment has a solar cell module 4 mounted on an eaves-end fitting 5 (eave-end attachment) on a basic roof structure 3 sown with a slate tile 2 (roof member). And an intermediate mounting bracket 6 (intermediate mounting bracket). Moreover, the rain finishing board 11 is partially installed in the required part of this roof structure 1. FIG.

As shown in FIG. 2, the slate roof tile 2 is a substantially rectangular flat plate member formed of cut natural stone, cement, or the like. More specifically, it is a thin plate-like member obtained by cutting out the vicinity of two corner portions that are on the ridge side at the time of installation among the four corners.
The slate roof tile 2 is previously provided with four mounting holes 12 in a row near the center in the short direction. In the present embodiment, the distance between the mounting holes 12 is not uniform, and the distance between the two central mounting holes 12, 12 is wider than the distance between the other holes.

As shown in FIGS. 3 and 4, the solar cell module 4 has a reinforcing heat insulating material 13, a terminal box 14, and a reinforcing member 15 attached to the back surface of the solar cell panel 10 and a part of the side end of the solar cell panel 10. It is formed by attaching a side gasket 16. The solar cell module 4 has a structure in which a frame is not attached to the edge portion of the solar cell panel 10, that is, a frameless structure. More specifically, the solar cell panel 10 has a thin frameless structure in which the thickness is about 3.2 mm.
Two cables including a positive cable 19 and a negative cable 20 are extended from the terminal box 14. A positive connector 21 is integrally formed at the extended end of the positive cable 19, and a negative connector 22 is integrally formed at the extended end of the negative cable 20.

As shown in FIG. 3, the solar battery panel 10 has a substantially horizontally long rectangular shape when viewed from the front, and is a solar battery cell between a resin back surface sealing material and a glass substrate forming a light receiving surface. A plurality of 25 are sealed.
More specifically, the solar cell panel 10 is partitioned into a cell sealing region 27, an eaves side surplus region 28, and a ridge side surplus region 29. These are arranged in the order of the eaves side surplus area 28, the cell sealing area 27, and the ridge side surplus area 29 from one end side in the short direction of the solar cell panel 10 to the other end side. These regions all extend over substantially the entire region of the solar cell panel 10 in the longitudinal direction. And this cell sealing area | region 27 is a part for sealing the photovoltaic cell 25. FIG.

The solar cell 25 is a substantially square plate-like member, and includes a photoelectric conversion element that converts light energy into electric energy. In this embodiment, a semiconductor layer is stacked on a semiconductor substrate to form a photoelectric conversion element.
In the solar battery cell 25, a bus bar electrode is provided on the front surface side, and a back surface side electrode is formed on the back surface side. The bus bar electrode and the back surface side electrode are portions for forming the positive electrode side electrode and the negative electrode side electrode of the solar battery cell 25, respectively.

  As shown in FIG. 3, the cell sealing area 27 is located on the eaves side from the ridge side end from a position slightly away from the eaves side end of the solar battery panel 10 with respect to the installation side. It is an area that occupies a far away position. More specifically, the cell sealing region 27 is one of the two long sides facing each other with a predetermined interval in the short direction of the solar battery panel 10, and is longer than the long side that forms the eaves edge portion during installation. It is formed at the position. That is, in the solar battery panel 10 of the present embodiment, the solar battery cells 25 are arranged in an eccentric manner on the eaves side.

  In the cell sealing region 27, a plurality of solar cells 25 are arranged in a matrix between the back surface sealing material and the glass substrate, and are sealed. As shown in FIG. 5, the positive electrode forming member 31, the negative electrode forming member 32, and the conductive member 33 are located outside the solar cells 25 arranged in a matrix.

  That is, between the back surface sealing material of the cell sealing region 27 and the glass substrate, the positive electrode forming member 31 and the negative electrode forming member 32 are arranged at a position from one end side in the longitudinal direction of the solar cell panel 10, and from the other end side. The conductive member 33 is arranged at the position. And between the positive electrode formation member 31, the negative electrode formation member 32, and the electrically-conductive member 33, the several photovoltaic cell 25 is in the state arranged in the matrix form at intervals between each.

  In the present embodiment, two cell rows 35 extending along the longitudinal direction of the solar cell panel 10 are formed, and these are arranged at a predetermined interval in the short direction of the solar cell panel 10 so as to be parallel to each other. It extends. In each cell row 35, a plurality of solar cells 25 are arranged in a straight line with a predetermined interval, and adjacent solar cells 25 are electrically connected.

  More specifically, the two solar cells 25 arranged adjacent to each other in the cell row 35 have a bus bar electrode located on one front surface side and a back surface side electrode located on the other back surface side directly or as a wiring member. It is in a state where it is indirectly connected via. Thereby, the adjacent photovoltaic cells 25 are connected in series. That is, in each cell row 35, the solar cells 25 belonging to the cell row 35 are connected in series.

  In addition, the bus bar electrode of one solar cell 25 belonging to one cell row 35 and the back side electrode of one solar cell 25 belonging to the other cell row 35 are both directly or wired to the conductive member 33. It is in a state of being indirectly connected via a member. Accordingly, the two cell rows 35 are connected in series via the conductive member 33. That is, all the solar cells 25 sealed in the cell sealing region 27 are connected in series.

  Then, the positive electrode of one solar cell 25 belonging to one cell row 35 and the positive electrode forming member 31 are connected, the negative electrode of one solar cell 25 belonging to the other cell row 35, and the negative electrode forming member 32 Is connected. That is, the positive electrode forming member 31 forms an output end on the positive electrode side, and the negative electrode forming member 32 forms an output end on the negative electrode side.

  Different wiring members (not shown) are connected to the positive electrode forming member 31 and the negative electrode forming member 32, respectively. The extended end of the wiring member extending from the positive electrode forming member 31 and the extended end of the wiring member extending from the negative electrode forming member 32 are respectively drawn into the terminal box 14. One of the drawn wiring members is electrically connected to the positive cable 19 and the other is electrically connected to the negative cable 20.

As shown in FIG. 3, the eaves-side surplus region 28 is a portion located between one of two long sides facing each other with a space between the solar battery panels 10 and the cell sealing region 27. Yes. On the other hand, the ridge side surplus region 29 is a portion located between the other of the two long sides and the cell sealing region 27.
This eaves-side surplus area 28 has a very short length in the eaves-ridge direction, and occupies from the eaves-side end portion of the solar cell panel 10 to a portion slightly closer to the ridge side than the eave-side end portion. It is a very narrow area.
The ridge-side surplus area 29 is longer in the eaves direction than the eaves-side surplus area 28 and shorter in the eaves direction than the cell sealing area 27. And this ridge side surplus area | region 29 is an area | region which occupies from the ridge side edge part of the cell sealing area | region 27 to the ridge side edge part of the solar cell panel 10. FIG.

  The reinforcing heat insulating material 13 is a foamed resin member attached to ensure the strength and heat insulating properties of the solar cell module 4.

As shown in FIG. 4, the reinforcing heat insulating material 13 is located on the eave side at the time of installation, and extends along the longitudinal direction of the solar cell panel 10. And a plurality of extending portions 39 extending from the lower side to the upper side), and these are integrally formed.
The eaves side portion 38 is a substantially horizontally long rectangular parallelepiped portion, and extends along the longitudinal direction of the solar cell panel 10. On the other hand, the extending part 39 is a substantially vertically long rectangular parallelepiped part, and extends along the short direction of the solar cell panel 10.

  In the present embodiment, four extending portions 39 are provided, and are arranged at predetermined intervals in the longitudinal direction of the solar cell panel 10. A missing portion 41 is formed between the two extending portions 39. The missing portion 41 is a space in which three sides are surrounded by the reinforcing heat insulating material 13 and the ridge side (the upper side in the drawing) is opened.

  In the solar cell module 4 of the present embodiment, three missing portions 41 are formed on the back surface side. Specifically, the first missing portion 41 is formed in the vicinity of the center of the reinforcing heat insulating material 13 in the longitudinal direction, and the second missing portion is located at a position closer to one end in the longitudinal direction than the first missing portion 41. A portion 41 is formed, and a third missing portion 41 is formed at a position from the other end portion.

  Of the eaves side portion 38, a portion located below the missing portion 41 is a thin portion 42 with a reduced thickness. A space in which the missing portion 41 and the thin portion 42 are continuously formed functions as a space for arranging cables (the positive side cable 19, the negative side cable 20, etc.) at the time of installation.

  One of the two missing portions 41 located on the outside is missing a part on the ridge side (the upper side in the drawing) of the eaves side portion 38 to form a space for arranging the terminal box 14. For this reason, on the eaves side end side of the terminal box 14 (the part located on the lower side of the drawing), the three surrounding sides are surrounded by the eaves side part 38.

  The terminal box 14 is located at a position from one end portion in the longitudinal direction of the solar cell panel 10, and is disposed at a position on the outside of the missing portion 41. Therefore, the extending portion 39 is located outside the terminal box 14, and the terminal box 14 and the extending portion 39 are disposed close to each other with a slight gap therebetween. In other words, the outer side surface of the terminal box 14 and the inner side surface of the extended portion 39 are in a state of being opposed to each other with a slight space therebetween, and most of the outer side surface of the terminal box 14 is extended to the outside. 39 is located.

The terminal box 14 is an elongated, substantially vertically long rectangular parallelepiped member, and a positive electrode forming member 31 and a wiring member extending from the negative electrode forming member 32 (see FIG. 5 and the like) are drawn into the terminal box 14 and filled with a potting agent. ing.
Further, as described above, one end side of the positive side cable 19 and one end side of the negative side cable 20 are drawn into the terminal box 14, and each of them extends from the positive electrode forming member 31 and the negative electrode forming member 32. The wiring member is electrically connected to the extending wiring member.

  Here, the two cables (the positive side cable 19 and the negative side cable 20) have different lengths, and one is longer than the other. More specifically, the length of the cable (positive electrode side cable 19) extending toward the end portion located at a position relatively far from the arrangement position of the terminal box 14 among the end portions in the longitudinal direction of the solar cell panel 10. Is shorter than the length of the cable (negative electrode side cable 20) extending toward the end side close to the arrangement position of the terminal box.

The reinforcing member 15 is a long member extending in the longitudinal direction of the solar cell panel 10, and is attached so that at least a part thereof is located on the back side of the cell sealing region 27. That is, as shown in FIG. 6, the reinforcing member 15 is located on the eaves side (left side of the drawing) with respect to the reinforcing heat insulating material 13, and at least a part of the reinforcing member 15 is formed between the solar battery cell 25 and the projection surface when vertically projected. It is installed so that it may overlap. In other words, at least a part of the reinforcing member 15 is located below the solar battery cell 25.
In addition, the vertical projection here shall project in the direction which goes to the back surface side from the light-receiving surface side of the solar cell panel 10.

  The reinforcing member 15 is made of an appropriate metal, and as shown in FIG. 7, the cross-sectional shape is a member having an inverted hat shape. That is, the reinforcing member 15 has a protruding portion 45 that protrudes from the light receiving surface side to the back surface side of the solar cell panel 10.

  More specifically, in the reinforcing member 15, the eaves side flat plate portion 46, the first inclined plate portion 47, the protruding end side flat plate portion 48, the second inclined plate portion 49, and the ridge side flat plate portion 50 from the eave side toward the ridge side. Are arranged in parallel, and these are integrally formed.

  The eaves side flat plate portion 46 and the ridge side flat plate portion 50 are substantially rectangular flat plate portions, and the length of the eaves side flat plate portion 46 in the short direction (eave building direction) is the short side direction of the ridge side flat plate portion 50. It is longer than the length.

  The 1st inclination board part 47 is a part which protrudes toward the ridge side downward from the ridge side edge part of the eaves side flat plate part 46, and is a plate-shaped part which inclined toward the ridge side as it goes below. On the other hand, the 2nd inclination board part 49 is a part which protrudes toward the eaves side downward part from the eaves side edge part of the ridge side flat plate part 50, and is a plate-shaped part inclined so that it may go to the eaves side as it goes below It is. That is, the 1st inclination board part 47 and the 2nd inclination board part 49 incline so that it may mutually adjoin, respectively as it goes to the downward side.

  The protruding side flat plate portion 48 is a substantially rectangular flat plate portion, and is located between the lower end portion of the first inclined plate portion 47 and the lower end portion of the second inclined plate portion 49. The back surface of the protruding side flat plate portion 48 is also a portion that forms the protruding end surface of the reinforcing member 15.

As shown in FIG. 6, the reinforcing member 15 has a portion on the center side in the eaves-ridge direction that is slightly raised downward, and a cross-sectional shape of the raised portion is substantially trapezoidal.
And the back surface of the protruding end side flat plate portion 48, that is, the surface forming the protruding end surface of the protruding portion 45 is a surface parallel to the back surface of the solar cell panel 10.

  And this reinforcement member 15 is attached to the position which overlaps with the cell sealing area | region 27 in a perpendicular direction (a vertical direction and the direction which goes to a back surface from a light-receiving surface). That is, either the reinforcing heat insulating material 13 or the reinforcing member 15 is attached to a position overlapping when the solar battery cell 25 is viewed in plan view.

  The side gasket 16 is a member that is attached to both ends of the solar cell module 4 in the longitudinal direction, and specifically, a member that is attached so as to cover a part of the short side located at the side end. That is, as shown in FIG. 3, the side gasket 16 is attached to the vicinity of the center of the solar cell panel 10 in the lateral direction in the side end portion of the solar cell panel 10.

More specifically, as shown in FIG. 8, the cross-sectional shape is a member that extends in a substantially “Y” shape, and includes an attachment plate portion 52 and an upper plate portion 53 that protrudes inward from the upper end of the attachment plate portion 52. The lower plate portion 54 protrudes inward from the lower end of the accessory plate portion 52, and the intermediate plate portion 55 protrudes inward between the upper plate portion 53 and the lower plate portion 54.
The accessory plate portion 52 is a substantially rectangular flat plate portion that takes an upright posture, and the upper plate portion 53 and the lower plate portion 54 are opposed to each other in the thickness direction of the solar cell module 4 (vertical direction in FIG. 8). It is a substantially rectangular flat part.
The middle plate portion 55 is a plate body that is bent and extends, and is a portion that protrudes obliquely upward and then protrudes inward along the longitudinal direction of the solar cell module 4. Specifically, the middle plate portion 55 is once projected in the direction from the lower plate portion 54 toward the upper plate portion 53 and from the outer side to the inner side in the longitudinal direction of the solar cell module 4. And the part located in the protrusion end side is the state which protruded in the same direction as the protrusion direction of the upper side board part 53 and the lower side board part 54. As shown in FIG.

  The upper plate 53 and the middle plate 55 sandwich the edge of the solar cell panel 10, and the middle plate 55 and the lower plate 54 sandwich the edge of the reinforcing heat insulating material 13.

  As shown in FIG. 9, the eaves mounting bracket 5 includes a front surface forming member 60, a support base member 61, and a fixing member 62, and these members are formed by being integrally assembled. . As shown in FIG. 14, the eaves-end fitting 5 includes a holding portion 63 for holding the eave side end portion of the solar cell panel 10 and a support base portion for supporting the eave end peripheral portion of the solar cell panel 10. 64, a roof member holding recess 65 for arranging the slate tile 2, and a fixing plate portion 66 for fixing on the roof.

  As shown in FIG. 9, the front surface forming member 60 protrudes backward (in the direction of the ridge side during installation) from the upper end of the substantially rectangular flat plate 70 in an upright posture and the upper end of the vertical plate 70. It is a member provided with the upper board part 71 to do. Here, the standing plate portion 70 and the upper plate portion 71 intersect substantially vertically, and the shape of the front surface forming member 60 viewed from the side is substantially “L” -shaped. In other words, the front surface forming member 60 is a long member whose cross-sectional shape extends in a substantially “L” shape.

  The standing plate portion 70 is provided with a fastening hole 73 for inserting fastening elements such as screws and bolts. The fastening hole 73 is a through-hole that penetrates the upright plate portion 70 in the thickness direction (front-rear direction). In the present embodiment, two fastening holes 73 formed at intervals in the up-down direction. There are three sets of fastening holes 73 configured by the above, and each set is in a state of being arranged in parallel at a predetermined interval in the longitudinal direction of the front forming member 60.

As shown in FIG. 10, the support base member 61 is a member formed by bending a metal plate in a staircase shape, and from the portion that becomes the eave side end to the portion that becomes the ridge side end when installed. Thus, the upright plate-like portions and the horizontal plate-like portions are alternately positioned.
The support base member 61 is roughly divided into a mounting portion 75 that is located closest to the eaves side during installation, a base forming portion 76 that is adjacent to the ridge side of the mounting portion 75, and a ridge side that is closest to the ridge side during installation. It is divided into legs 77.

  The mounting portion 75 is formed by bending the first standing plate portion 80 located at the foremost end (eave side end portion at the time of installation) and the upper end of the first standing plate portion 80 backward (ridge side). It is formed by a flat plate portion 81 and a second upright plate portion 82 formed by bending the rear end (ridge side end portion) of the first flat plate portion 81 upward.

  Here, the first flat plate portion 81 is provided with a member insertion hole 83 that passes through the first flat plate portion 81 in the thickness direction (vertical direction in FIG. 10). The member insertion hole 83 is a through hole having a substantially quadrangular opening shape in plan view, and is a hole extending from the front end of the first flat plate portion 81 to the rear end (from the eave side end to the ridge side end). . In the present embodiment, a plurality of member insertion holes 83 are provided, and are arranged in parallel at a predetermined interval in the longitudinal direction of the first flat plate portion 81.

The first standing plate portion 80 is provided with a fastening hole 84 in a portion that is the front (eave side) of the member insertion hole 83. The fastening hole 84 is a through hole that penetrates the first standing plate portion 80 in the thickness direction (front-rear direction).
The second standing plate portion 82 is provided with a fastening hole 85 in a portion that is the rear (ridge side) of the member insertion hole 83. The fastening hole 85 is a through hole that penetrates the second standing plate portion 82 in the thickness direction (front-rear direction).

  The base forming portion 76 includes a second flat plate portion 87 formed by bending the upper end of the mounting portion 75 (second standing plate portion 82) rearward (ridge side), and a rear end (ridge side) of the second flat plate portion 87. The third standing plate portion 88 is formed by bending the end portion downward, and the third flat plate portion 89 is formed by bending the lower end of the third standing plate portion 88 backward.

The 2nd flat plate part 87 is a part which becomes the highest position in the member 61 for support bases, and the buffer member 90 is attached to the upper surface.
The buffer member 90 is a substantially rectangular parallelepiped member formed of an appropriate material having high shock absorption and flexibility, such as polyurethane foam. The buffer member 90 extends along the longitudinal direction of the second flat plate portion 87 (support base member 61), and more specifically, extends over substantially the entire region of the second flat plate portion 87 in the longitudinal direction. .

  The 3rd flat plate part 89 is located in the back (ridge side) of the 2nd flat plate part 87, and is following the 2nd flat plate part 87 via a level | step difference. Here, the step between the second flat plate portion 87 and the third flat plate portion 89 is much smaller than the step formed in other portions. That is, the third flat plate portion 89 is formed at a position slightly lower than the second flat plate portion 87.

A buffer member 90 is also attached to the third flat plate portion 89.
The buffer member 90 is also a member similar to the buffer member 90 described above, and extends in the direction along the longitudinal direction of the third flat plate portion 89 (support base member 61). It is in a state extending over substantially the entire region in the longitudinal direction.

The leg portion 77 includes a fourth upright plate portion 92 formed by bending the rear end (ridge side end portion) of the base forming portion 76 (third flat plate portion 89) downward, and a lower end of the fourth upright plate portion 92. It is formed by a fourth flat plate portion 93 formed by bending rearward (ridge side).
Here, the fourth standing plate portion 92 of the leg portion 77 is provided with a plurality of through holes (not shown) penetrating the fourth standing plate portion 92 in the thickness direction (front-rear direction). This through-hole is a hole that penetrates the fourth upright plate portion 92 in the eave ridge direction and opens toward the ridge side when the eaves-end fitting 5 is mounted on the roof.

  As shown in FIG. 11, the fixing member 62 includes a lower plate portion 100 (fixed plate portion 66) and a first upright portion 101 raised upward from a front end (eave side end portion) of the lower plate portion 100. And an upper plate portion 102 which is continuous with the upper end of the first rising portion 101 and is opposed to the lower plate portion 100, and a second raised from the rear end (ridge side end portion) of the upper plate portion 102 to the upper side. An upright portion 103, a base forming plate portion 104 that is continuous with the upper end of the second upright portion 103 and is opposed to the upper plate portion 102, and a fixed piece portion 105 that is raised upward from the front end of the base forming plate portion 104. And have. In addition, in the part which each part continues, it is bent so that the continuous part may become substantially vertical.

  Here, as shown in FIG. 12, a fastening hole 108 is provided in each of the first upright portion 101, the second upright portion 103, and the fixed piece portion 105. The fastening hole 108 is a through hole that penetrates the first upright portion 101, the second upright portion 103, and the fixed piece portion 105 in the thickness direction. The three fastening holes 108 have the same position in the left-right direction, and are arranged in parallel at a predetermined interval in the up-down direction.

As shown in FIG. 11, the lower plate portion 100 is longer than the upper plate portion 102 and the base forming plate portion 104, and extends further to the rear (ridge side). A fixing hole 110 is provided at a position from the rear end (ridge side end) of the lower plate portion 100.
That is, the fixing hole 110 is formed on the rear side (ridge side) of the lower plate portion 100 with respect to the portion overlapping with the upper plate portion 102 and the base forming plate portion 104. In other words, the fixing hole 110 is formed at a position outside the overlapping position with the upper plate portion 102 and the base forming plate portion 104.

  In the present embodiment, two fixing holes 110 are provided in the lower plate portion 100, and these fixing holes 110 are in parallel with a predetermined interval in the left-right direction.

  Next, the assembly structure of the eaves tip mounting bracket 5 will be described.

  As shown in FIG. 13A, the lower portion of the fixing member 62 is inserted into the member insertion hole 83 of the support base member 61. As shown in FIG. 13B, the portion above the upper plate portion 102 of the fixing member 62 is positioned higher than the first flat plate portion 81, and the other portion of the fixing member 62 is the first portion. It is assumed that the flat plate portion 81 is disposed at a lower position.

At this time, the first upright plate portion 80 of the support base member 61 and the first upright portion 101 of the fixing member 62 are brought into close contact with each other, and the second upright plate portion 82 of the support base member 61 and the fixing member 62 are in contact with each other. Is brought into close contact with the second raised portion 103.
More specifically, the rear end surface of the first upright plate portion 80 located on the front side (eave side) and the front end surface of the first upright portion 101 located on the rear side (ridge side) are in close contact with each other. And the rear end surface of the 2nd standing upper part 103 located in the front (eave side) and the front end surface of the 2nd standing board part 82 located in back (building side) will be in the state closely_contact | adhered.

  In this state, the fastening hole 84 formed in the first standing plate portion 80 and the fastening hole 108 formed in the second upright portion 103 overlap in the front-rear direction (eave building direction) to form an integral communication hole. To do. Then, a fastening element such as a screw is inserted into the communication hole, and the support base member 61 and the fixing member 62 are fixed integrally.

Further, as shown in FIG. 13C, the front forming member 60 is attached to the support base member 61 and the fixing member 62 that are integrally fixed.
That is, the front forming member 60 is brought close to the front side, the standing plate portion 70 of the front forming member 60 and the fixing piece portion 105 of the fixing member 62 are brought into close contact with each other, and the standing plate portion 70 of the front forming member 60 is placed. And the first standing plate portion 80 of the support base member 61 are brought into close contact with each other.

  Then, the fastening element is inserted into a communication hole formed by overlapping the fastening hole 73 of the standing plate part 70 and the fastening hole 108 of the fixed plate part 66. In addition, a communication hole formed by overlapping another fastening hole 73 formed in the upright plate portion 70, a fastening hole 84 of the first upright plate portion 80, and a fastening hole 108 of the first upright portion 101. And the fastening element is inserted. As a result, the front surface forming member 60 is attached to the support base member 61 and the fixing member 62.

  In this state, the two panel protection members (the first panel protection member 112 and the second panel protection member 113) are attached to complete the assembly of the eaves tip mounting bracket 5.

The first panel protection member 112 is a member that has a substantially “U” cross-sectional shape and is attached to the protruding end (ridge side end) of the upper plate portion 71. As a result, a part of the lower surface of the upper plate portion 71 is covered with the first panel protection member 112 from the lower side.
The second panel protection member 113 is a member extending in a substantially “L” cross-sectional shape, and is fitted between the upper plate portion 71 and the base forming plate portion 104. As a result, the second panel protection member 113 is positioned on the rear (ridge side) portion of the fixed piece portion 105 and on the upper side of the base forming plate portion 104.

Thus, when the eaves side end of the solar cell module 4 (solar cell panel 10) is fitted into the holding portion 63, the surface of the solar cell module 4 and the panel protection member (first panel protection member 112, second panel). The protective member 113) comes into contact. That is, since the solar cell panel 10 and the eaves-end fitting 5 are not in direct contact, damage to the surface of the solar cell panel 10 due to such contact can be prevented.
These panel protection members not only function as protection members that prevent damage to the solar cell panel 10 due to contact with the metal fittings, but also prevent rainwater and the like from entering between the solar cell panel 10 and the metal fittings. Also functions as a sealing material.

  In this eaves tip mounting bracket 5, as shown in FIG. 14, the portion surrounded by the upper plate portion 71, the fixed piece portion 105, and the base forming plate portion 104 is the eave side of the solar cell module 4 (solar cell panel 10). It functions as a holding portion 63 that holds the end portion.

Moreover, the part formed by the base formation board part 104, the 2nd flat plate part 87, and the 3rd flat plate part 89 supports the eaves side edge part of the solar cell module 4 (solar cell panel 10) from the downward side. 64 functions.
In addition, in the support base part 64, the upper surface of the base formation board part 104 and the upper surface of the 2nd flat plate part 87 become substantially the same height, and it is in the state which formed the same plane continuous without a level | step difference. And the 3rd flat plate part 89 is located in the position a little lower than the upper surface of the base plate part 104 and the 2nd flat plate part 87, The upper surface of this 3rd flat plate part 89 is the base plate part 104, the 2nd flat plate part. It is in a state of being continuous through the same plane and steps formed by the upper surfaces of the part 87. Further, the leg portion 77 is located on the rear side (ridge side) of the third flat plate portion 89.

  Further, in the eaves tip mounting bracket 5, a space located below the upper plate portion 102 and above the lower plate portion 100, in other words, the eave side end portion is the upper plate portion 102, the first upright portion 101, the lower The space surrounded by the plate portion 100 functions as a roof member holding recess 65 into which the eaves side portion of the slate tile 2 is inserted. The lower plate portion 100 of the fixing member 62 functions as a fixing plate portion 66 for fixing the eaves mounting bracket 5 on the roof. These will be described in detail later.

  As shown in FIG. 15, the eaves mounting bracket 5 is provided with a grounding member mounting portion 115 in the vicinity of the end portion in the longitudinal direction of the fourth standing plate portion 92. More specifically, the grounding member attachment portion 115 is formed in the vicinity of the end portion in the longitudinal direction of the fourth standing plate portion 92, and the grounding member 116 is fixed by appropriate means such as screwing. The grounding member 116 is in contact with another adjacent eaves mounting bracket 5 so that the two eaves mounting brackets 5 are in an electrically conductive state or directly or indirectly grounded via a ground wire or the like. It is a member.

  As shown in FIGS. 16 and 17, the intermediate mounting bracket 6 includes a fixed portion constituting member 120, an intermediate plate member 121, and a pressing plate member 122.

  As shown in FIG. 17, the fixing member 120 is formed by bending a single plate, and has a lower plate member 125 and an upper plate member 126, both of which are connected by an upright portion 127. It has a shape. That is, the lower plate member 125 has a flat plate shape, and the front side end portion in the longitudinal direction is folded back 180 degrees to form the upper plate member 126.

  The lower plate member 125 and the upper plate member 126 both extend in the eaves-ridge direction (front-rear direction), and are opposed to each other with a slight gap in the vertical direction. The length of the upper plate member 126 is longer than the length of the lower plate member 125, and more specifically, is about two to three times longer.

As shown in FIG. 17, a part of the upper plate member 126 is convex upward, and has a low position portion having a relatively low height and a high position portion having a relatively high height. It has become. More specifically, a front end side (eave side) portion and a rear end side (ridge side) portion are low position portions, and a portion therebetween is a high position portion.
The high position portion occupies about one-third to one-fourth of the entire upper plate member 126 and is formed at a position facing the lower plate member 125.

In addition, a hook portion 128 for hooking cables (the positive side cable 19 and the negative side cable 20) is formed in the lower position portion located on the rear end side than the higher position portion.
The hook portion 128 is formed by cutting a substantially “U” -shaped cut into the upper plate member 126 and raising the cut, and all of the hook portions 128 face the high position portion side (eave side).

  The upper plate member 126 is formed with four holes including two large opening holes 130 and two member fixing holes 131 at a high position. In addition, four holes including two existing holes 132 and two fixing holes 133 are formed in the lower position portion located on the rear side of the higher position portion.

  More specifically, in the high position portion, the two large opening holes 130 are arranged in parallel at a predetermined interval in the left-right direction, and two members located on the front side (eave side) of the two large opening holes 130 The fixing holes 131 are also arranged in parallel at a predetermined interval in the left-right direction. At this time, the two large opening holes 130 are equal in distance from the center portion in the left-right direction of the high position portion, and the two member fixing holes 131 are also separated from the center portion in the left-right direction of the high position portion. The distance is equal. The distance between the two large opening holes 130 is longer than the distance between the two member fixing holes 131.

  In the low position portion located on the rear side of the high position portion, the two existing holes 132 are arranged in parallel in the left-right direction near the front end, and the two fixing holes 133 are arranged in the left-right direction near the rear end. In parallel with a predetermined interval. Of these, the two fixing holes 133 are both elongated holes extending in the eaves-ridge direction (front-rear direction).

Here, the lower plate member 125 is also provided with four through holes 134, which are arranged in two rows and two columns. FIG. 18 shows only two, and the other two are not shown.
Each of these through holes 134 is formed one below the two large opening holes 130 and one below each of the two existing holes 132. The through hole 134 positioned below the large opening hole 130 has an opening diameter smaller than that of the large opening hole 130.

As shown in FIGS. 16, 18, 19 and the like, the intermediate plate member 121 is formed by bending a single plate in a step shape.
That is, the intermediate plate member 121 has a first flat plate portion 135, a first upright plate portion 136, a second flat plate portion 137, and a second upright plate portion 138 sequentially from the rear side to the front side. It is provided.

As shown in FIG. 19, two long holes 139 are formed in the first flat plate portion 135. The long hole 139 extends to the wall surface of the first upright plate portion 136, and more specifically, is a long hole extending over the first flat plate portion 135 and the first upright plate portion 136.
A part of the long hole 139 formed in the first upright plate part 136 has a substantially rectangular shape when viewed from the back, and the length in the width direction is formed in the first flat plate part 135 of the same long hole 139. It is longer than the part.

More specifically, the portion formed in the first upright plate portion 136 of the long hole 139 has a size through which the head of the screw 140 can pass. On the other hand, the width of the portion formed in the first flat plate portion 135 is designed to have such a dimension that the neck portion of the screw 140 can pass but the head cannot pass.
The second upright plate portion 138 is provided with two fastening holes 141 as shown in FIG.

  The pressing plate member 122 is a member having a cross-sectional shape of “L” shape, and a front plate portion 143 and a folded portion 144 are formed. The front plate portion 143 is provided with two fastening holes 145.

  Next, the assembly structure of the intermediate mounting bracket 6 will be described.

  As shown in FIG. 16 and FIG. 19, the intermediate mounting member 6 of the present embodiment has an intermediate plate member 121 mounted on the fixing member constituting member 120, and a pressing plate member 122 attached to the intermediate plate member 121. ing.

  That is, with the first flat plate portion 135 of the intermediate plate member 121 placed on the high position portion of the fixed portion constituting member 120, the screw 140 is inserted into the long hole 139, and the fixed portion constituting member 120 and the intermediate plate member are inserted. 121 is fixed.

In the present embodiment, as shown in FIG. 16, the long holes 139 are extended across the first flat plate portion 135 and the first upright plate portion 136 that intersect substantially vertically, and the first upright plate portion. The width of the portion formed in 136 is wider than the width of the portion formed in the first flat plate portion 135. And in the part formed in the 1st upright board part 136, the head of the screw | thread 140 can pass.
For this reason, when the screw 140 is loosened and the head portion of the screw 140 is separated from the upper surface of the first flat plate portion 135, the screw 140 is engaged with the member fixing hole 131 of the fixing member 120. The intermediate plate member 121 can be slid and moved in and out of the state.

  The holding plate member 122 abuts the back surface side of the front plate portion 143 on the surface of the second upright plate portion 138, and overlaps the fastening hole 141 of the second upright plate portion 138 and the fastening hole 145 of the front plate portion 143. In the combined state, a fastening element such as a screw is inserted and fixed to the intermediate plate member 121.

  The intermediate mounting bracket 6 of the present embodiment includes a first recess 150, a second recess 151 (ridge side holding recess), and a third recess 152 (eave side holding recess) as shown in FIGS. It has a structure.

The 1st recessed part 150 is comprised by the lower board member 125 and the upper board member 126, and is a recessed part opened to the back side (ridge side).
The second recess 151 is configured by a part of the upper plate member 126 and a part of the intermediate plate member 121 positioned thereon, and is a recess that opens in a direction opposite to the first recess 150.
The third concave portion 152 is a concave portion that is configured by a part of the intermediate plate member 121 and the pressing plate member 122 positioned thereon and opens in the same direction as the first concave portion 150.
That is, the intermediate mounting bracket 6 includes a first recess 150 that opens to one side of the intermediate mounting bracket 6, a third recess 152 that opens in the same direction as the first recess 150, and a direction opposite to the first recess 150. A second recess 151 is formed in the opening.

Note that a panel protection member is also attached to the intermediate mounting bracket 6 at a portion that holds the solar cell panel 10. That is, the panel protection member covers the standing wall surface and the ceiling surface of each of the second recess portion 151 and the third recess portion 152.
These panel protective members not only function as protective members that prevent damage to the solar cell panel 10 due to contact with the metal fittings, but also seals that prevent rainwater and the like from entering between the solar cell panel 10 and the metal fittings. Also functions as a material.

  Then, the construction method of the roof structure 1 of this embodiment is demonstrated in detail, referring drawings.

The roof structure 1 of this embodiment forms a roof base | substrate, and arranges the slate tile 2 in a line form and multiple steps | paragraphs on it. That is, it is set as the state which mounted the several slate tile 2 so that it may have a planar expansion on a roof base | substrate. And when this slate roof tile 2 is mounted, the eaves tip mounting bracket 5 and the intermediate mounting bracket 6 are mounted in parallel.
That is, in this embodiment, the foundation roof structure 3 is constructed prior to the installation of the solar cell module 4.

First, as shown in FIGS. 20 and 21, the eaves edge drainer 157 is attached to the eaves of the roof base, and the eaves attaching bracket 5 is placed thereon. Then, a fastening element such as a wood screw or a nail is inserted into the fixing hole 110 of the fixing plate portion 66 (the lower plate portion 100), and the eaves edge mounting bracket 5 is attached to the roof base.
Here, in the present embodiment, a plurality of eaves mounting brackets 5 are attached to the roof base. Thus, when attaching the several eaves attachment metal fittings 5, it is set as the state arrange | positioned close to the space | interval of the left-right direction (parallel direction) so that a clearance gap may not be made when it sees from the front side.

Subsequently, as shown in FIGS. 22, 23, and 24, the eaves side first-stage slate roof tile 2 is attached. In the present embodiment, two slate roof tiles 2 (slate roof tiles 2a-1 (roof members), 2a-2) are attached to be attached to the first eave side first stage.
In more detail, first, the lower slate tile 2a-1 on the first eave side is attached. The slate roof tile 2 a-1 attached to the lower side has a shorter length in the eaves ridge direction than the above-described slate roof tile 2. At this time, the eaves side edge part of the slate tile 2a-1 is located in the roof member holding | maintenance recessed part 65 of the eaves tip attachment bracket 5 (refer FIG. 24). And the mounting hole 158 of this slate tile 2a-1 is made into the part located in the ridge side rather than the fixed board part 66 (lower board part 100), the fastening elements, such as a nail, are inserted, and the slate tile 2a-1 is inserted. Secure to the roof base.

Subsequently, the upper slate roof tile 2a-2 is fixed on the lower slate roof tile 2a-1 (see FIG. 23). The slate roof tile 2a-2 attached to the upper side is the same as the slate roof tile 2 described above, and has a longer length in the eaves ridge direction than the lower slate roof tile 2a-1.
As shown in FIG. 24, also in the upper slate roof tile 2 a-2, the eaves side end portion is arranged in the roof member holding recess 65 of the eaves tip mounting bracket 5. Then, the mounting hole 12 of the slate roof tile 2a-2 is positioned at a portion located further on the ridge side than the ridge side end of the lower slate roof tile 2a-1, and a fastening element such as a nail is inserted through the slate roof tile. 2a-2 is fixed to the roof base.

  That is, as shown in FIG. 24, the position of the eaves side end of the lower slate roof tile 2a-1 and the eaves side end of the upper slate roof tile 2a-2 are the same position. Both are located in the roof member holding recess 65. In other words, it is a recess formed between the lower plate portion 100 and the upper plate portion 102, and the eaves side end of the two slate roof tiles 2 (slate roof tiles 2a-1 and 2a-2) in the recess opening on the ridge side. The part is fitted. And in the inside of this recessed part (roof member holding recessed part 65), it is in the state where the two slate tiles 2 overlapped.

  Moreover, the lower slate roof tile 2a-1 covers the entire upper area of the lower plate portion 100, and the upper slate roof tile 2a-2 covers the entire upper area of the lower slate roof tile 2a-1. . For this reason, the fixing hole 110 of the eaves-end fitting 5 is covered with the two slate roof tiles 2a-1. In the present embodiment, the fixing hole 110 is covered with a plurality of slate roof tiles 2 so that rainwater can be reliably prevented from entering the fixing hole 110.

  And the eaves side edge part of the eaves attachment metal fitting 5 and the two slate tiles 2 located in the eaves side 1st step have protruded to the eaves side rather than the eaves side edge part of the roof base. The eaves mounting bracket 5 is positioned on the eaves side of the slate roof tile 2.

Further, as shown in FIG. 25, the second slate roof tile 2b on the eaves side is attached.
The slate roof tile 2b is disposed in a state where a part of the slate roof tile 2b is overlapped with the first-stage slate roof tile 2 laid first. Then, a fastening element such as a nail is inserted into the mounting hole 12 of the slate tile 2b and fixed to the roof base, and the intermediate mounting bracket 6 is mounted in parallel with this process.
As a recommended procedure, as shown in FIGS. 26 and 27, the intermediate plate member 121 is removed from the intermediate mounting bracket 6 (see FIG. 17 and the like), and only the fixing member 120 is fixed in advance. Is preferred.

  More specifically, the fixing member constituting member 120 is placed on the slate roof tile 2b placed in advance, and the upper plate member 126 is out of the four through holes 134 (see FIG. 18) of the lower plate member 125. The attachment is made using one of the two through holes 134 located below the large opening hole 130. That is, the through hole 134 of the lower plate member 125 and one of the four mounting holes 12 of the slate roof tile 2b are overlapped, and a fastening element such as a nail is inserted through these two holes.

  That is, the upper plate member 126 exists above the lower plate member 125, but the large opening hole 130 is provided at a position corresponding to the upper portion of the through hole 134 of the lower plate member 125. The fastening element can be inserted through the through hole 134 by passing through. Furthermore, since the large opening hole 130 is larger than the through hole 134, the driver can easily rotate.

Then, when the fixing of the eaves-side second-stage slate roof tile 2b is completed, the third-stage slate roof tile 2c is attached as shown in FIG.
When attaching the third-stage slate roof tile 2c, the eaves-side end of the slate roof tile 2c is inserted into the first recess 150 of the intermediate mounting bracket 6, as shown in FIG. And the eaves side edge part of the slate roof tile 2c will be in the state which covered the through-hole 134 of the lower board member 125 located in the inside of the 1st recessed part 150. FIG. That is, in the lower part of the upper plate member 126, the third-stage slate roof tile 2c exists throughout the entire area.
This can prevent rainwater from entering the through hole 134.

  In this state, either one of the fixing holes 133 provided from the rear end of the upper plate member 126 of the intermediate mounting bracket 6 is matched with one of the mounting holes 12 of the third-stage slate roof tile 2c. The intermediate mounting bracket 6 is fixed by inserting a fastening element such as a nail into the both.

Thereafter, as shown in FIG. 30, the fourth and subsequent slate roof tiles 2 are attached, and in the same manner as described above, the intermediate mounting bracket 6 (fixing member constituting member 120) together with the slate roof tiles 2 as necessary. To fix.
At this time, the intermediate mounting bracket 6 (fixed portion constituting member 120) is in a state where the ridge side portion is covered with the slate roof tile 2 located on the ridge side. As a result, the two fixing holes 133 of the upper plate member 126 are covered with the slate roof tile 2, and rainwater can be prevented from entering from the fixing holes 133. Moreover, the attachment hole 12 of the slate tile 2 on the eaves side is covered with the slate tile 2 on the ridge side. As a result, the intrusion of rainwater from the mounting hole 12 can be prevented.
Then, by attaching the slate tile 2 from the eaves side to the ridge, the laying of the slate tile 2 is completed on the roof base, and the foundation roof structure 3 is completed.

  Subsequently, the solar cell module 4 is installed on the foundation roof structure 3. Further, as a recommended procedure, it is desirable to carry out wiring of the solar cell module 4 when the solar cell module 4 is fixed.

The solar cell module 4 is fixed on the roof in order from the eaves side. Accordingly, first, the eaves-side first-stage solar cell module 4a is fixed.
That is, as shown in FIG. 31 and FIG. 32, the eaves side end of the solar cell module 4 is fitted into the holding portion 63 of the eaves mounting bracket 5, and the ridge side end of the solar cell module 4 a is in two stages. It mounts on the intermediate | middle attachment metal fitting 6a (fixed part structural member 120) attached with the slate roof tile 2b of eyes. More specifically, the ridge-side end portion of the solar cell module 4a is placed on the low position portion located on the front side (eave side) with respect to the high position portion of the fixed portion constituting member 120 (see FIG. 32).

Then, as shown in FIG. 33, the intermediate plate member 121 and the pressing plate member 122 are fixed to the fixed portion constituent member 120 with the ridge side end of the solar cell module 4 a being placed on the fixed portion constituent member 120. And attach.
As a result, the solar cell module 4a faces the eaves side because the eave side engages with the holding portion 63 of the eaves tip mounting bracket 5, and the ridge side engages with the second recess 151 of the intermediate mounting bracket 6a. Both sides are held, and the base roof structure 3 cannot be detached.

When the eaves-side first-stage solar cell module 4a is attached, subsequently, cable wiring is performed between the adjacent solar cell modules 4a. That is, as shown in FIG. 34 and FIG. 35, the positive electrode side cable 19 on one side of the adjacent solar cell module 4 and the negative electrode side cable 20 on the other side are connected.
In the present embodiment, the cable that has been wired is engaged with the hook portion 128 of the intermediate mounting bracket 6. By doing in this way, processing of a cable becomes easy.

Subsequently, the second-stage solar cell module 4b on the eaves side is laid.
As shown in FIGS. 36 and 37, the eaves-side second-stage solar cell module 4 b is fixed to the eaves side and the ridge side by the intermediate mounting bracket 6. In other words, the intermediate mounting bracket 6 is provided at every other stage of the slate roof tiles 2 arranged in a step shape, such as the slate roof tile 2 at the third eave side, the slate roof tile 2 at the fifth eave side, and so on. It is in a fixed state with the slate roof tile 2.

  The eaves side of the solar cell module 4b is inserted into the third recess 152 of the intermediate mounting bracket 6a located on the eave side, and the ridge side of the solar cell module 4b is inserted into the intermediate mounting bracket 6b positioned on the ridge side. It will be in the state engaged with the 2nd recessed part 151. FIG. As a result, the solar cell module 4b is in a state where both sides facing each other in the eaves-ridge direction are held and cannot be detached from the foundation roof structure 3.

In this way, when all the solar cell modules 4b on the eaves side second stage have been installed, a cable is wired and engaged with the hook portion 128 in the same manner as in the first eave side first stage.
Further, if necessary, a cable extending from any one of the solar cell modules 4a on the first eave side (for example, a cable extending from the solar cell module 4 located at the end of the row) is extended to the ridge side, and two steps on the eave side It connects with the cable extended from either of the solar cell modules 4b of eyes.

Similarly, the solar cell modules 4 on the eaves side third and subsequent stages are installed as necessary. And the cable extended from one of the solar cell modules 4 is connected to a drawing-in cable (not shown) as needed.
When the installation of the desired number of stages is completed, the rain closing plate 11 is installed on the ridge side of the solar cell module 4 at the uppermost part.
Thereby, the roof structure 1 of this embodiment is completed (refer FIG. 1).

  In the roof structure 1 of the present embodiment, a part of the slate tile 2 overlaps with the adjacent slate tile 2 and is arranged in a row and a plurality of stages on the roof base with a part exposed. As a result, the slate roof tile 2 is placed with a flat spread (see FIGS. 1 and 30). The number of overlapping slate roof tiles 2 differs depending on the position, and a small overlapping portion (for example, a portion indicated by α in FIG. 33) having a relatively small number of overlapping and a large overlapping portion (for example, a portion indicated by α in FIG. 33). , A portion indicated by β in FIG. 33).

  Here, the basic roof structure 3 of the present embodiment has a structure in which the eaves side portion of the slate tile 2 located on the ridge side is further overlapped with the ridge side portion of the slate tile 2 as described above. . Therefore, the eaves portion of the roof is necessarily a portion where the number of overlapping slate tiles 2 is small.

  In the present embodiment, the eaves portion has a structure in which a plurality of slate roof tiles 2 (two slate roof tiles 2a-1 and 2a-2) are stacked, and the leg portion 77 of the eaves mounting bracket 5 is positioned above the slate roof tile 2a. Yes. This will be specifically described below.

  As shown in FIG. 38, the support base portion 64 and the leg portion 77 of the present embodiment are formed in a cantilever shape and can be bent to change the posture. Therefore, when an excessive load is applied to the solar cell module 4a due to snow accumulation or the like, the solar cell module 4a is pressed downward by the solar cell module 4a and separated upward from the slate roof tile 2a-2 (in FIG. 38 (a)). The state shown in FIG. 38 is shifted to a state where the leg 77 is in contact with the slate roof tile 2a-2 (a state shown in FIG. 38B). That is, the lower surface of the fourth flat plate portion 93 is in contact with the upper surface of the slate roof tile 2a-2.

  Thus, in a state where the leg portion 77 is in contact with the slate roof tile 2a-2, it is possible to disperse the load applied from above, and it is possible to suppress damage to the solar cell module 4a. However, on the other hand, there is a possibility that the slate roof tile 2a-2 that receives the load may be damaged or damaged.

  Here, in the present embodiment, a plurality of slate roof tiles 2 (two slate roof tiles 2a-1 and 2a-2) are stacked on the lower side of the leg portion 77. For this reason, even if the upper slate roof tile 2a-2 is damaged, the slate roof tile 2a-1 that is not damaged is located above the fixing hole 110 of the eaves mounting bracket 5 and is fixed. Rainwater or the like does not enter from the hole 110.

  In addition, when a plurality of slate roof tiles 2 (two pieces of slate roof tiles 2a-1 and 2a-2) are stacked at the eaves portion, a larger overlapping portion (for example, a portion indicated by β in FIG. 33) having the largest number of overlapping sheets. It is structured to stack only a small number of sheets. For this reason, the eaves portion becomes thicker than necessary, and the appearance does not deteriorate.

In addition, as described above, the fourth standing plate portion 92 of the leg portion 77 is provided with a through hole that penetrates the fourth standing plate portion 92 in the thickness direction. For this reason, even if the rainwater flows into the lower side of the solar cell module 4a in a state where the leg portion 77 is in contact with the slate roof tile 2a-2 (the state shown in FIG. 38B), It does not collect on the ridge side of the four standing plate portions 92. That is, the rainwater that has flowed in flows from the ridge side toward the fourth standing plate portion 92, then passes through the formed through hole and flows toward the eaves side. This makes it possible to improve drainage on the roof, and it is possible to prevent the occurrence of problems caused by the accumulation of water on the roof.
That is, in the present embodiment, a through hole that functions as a drainage hole is provided in the fourth standing plate portion 92 of the leg portion 77 so that a large amount of water does not accumulate on the eaves side of the fourth standing plate portion 92.

Further, as shown in FIG. 39, when the solar cell module 4b at the second eave side is attached, the eaves side of the solar cell module 4b is located at a position further away from the reinforcing member 15 of the solar cell module 4b. And the 3rd recessed part 152 for hold | maintaining the vicinity is located.
For this reason, even if the reinforcing member 15 is detached from the solar cell panel 10 for some reason, the reinforcing member 15 that slides toward the eaves abuts against the inner surface of the third recess 152 and is prevented from moving. The Accordingly, the reinforcing member 15 is not accidentally slid down under the roof, which is safe.

  Here, as shown in FIG. 39, the reinforcing member 15 of the solar cell module 4b is located on the eaves side of the cable (in FIG. 39, the positive side cable 19). In other words, the reinforcing member 15 and the cable are at a position away from each other in the eaves direction, and are not overlapped when viewed in plan. Therefore, when an excessive load is applied to the solar cell module 4b, the reinforcing member 15 does not press the cable. That is, the cable is not damaged by being pushed by the reinforcing member 15.

Further, in the present embodiment, as described above, the protruding end surface of the reinforcing member 15 is a surface parallel to the back surface of the solar cell panel 10, and is a surface having a planar extension. For this reason, even if the cable is detached from the hook portion 128 for some reason and is positioned below the reinforcing member 15, the reinforcing member 15 does not damage the cable.
That is, unlike the shape in which the protruding end surface of the reinforcing member 15 is sharp, even if the reinforcing member 15 presses the cable from above, the cable is not easily damaged. This can prevent the cable from being damaged more reliably.

In the above-described embodiment, the reinforcing member 15 is formed so that the cross-sectional shape is substantially a hat shape, and the protruding portion 45 that is convex toward the back side is formed. However, it is not preferable because the strength decreases, but for example, a rectangular flat plate shape may be used.
In this case, an eaves mounting bracket 205 as shown in FIG. 40 may be adopted. That is, in the above-described embodiment, an example of the support base portion 64 including the second flat plate portion 87, the third standing plate portion 88, and the third flat plate portion 89 that are continuous in a step shape is shown (see FIG. 14 and the like). Instead of these, the support base portion 264 including the flat plate portion 287 having a planar spread without a step may be used.
However, from the viewpoint of increasing the strength, it is preferable to employ the reinforcing member 15 and the support base 64 as described above, as shown in FIG. That is, the third flat plate portion 89 is positioned below the protruding end surface of the protruding portion 45 positioned on the lowermost side of the reinforcing member 15, and the second flat plate is positioned below the portion positioned on the eaves side relative to the protruding portion 45. It is preferable to locate the portion 87.

In the above-described embodiment, an example in which a plurality of through holes that function as drain holes is provided in the fourth standing plate portion 92 of the leg 77 has been described, but a structure in which only one through hole is provided may be employed.
Further, not only the fourth standing plate portion 92 but also a hole extending across the fourth standing plate portion 92 and the fourth flat plate portion 93 may be used. More specifically, the fourth flat plate portion 93 extends from the ridge side end portion to the eaves side end portion, and further extends from the eave side end portion of the fourth flat plate portion 93 to the wall surface of the fourth standing plate portion 92 upward. It may be a long hole. What is necessary is just a hole (slit groove) which can flow water from the space located in the ridge side of the 4th standing board part 92 to the space located in the eaves side of the 4th standing board part 92.

1 Roof structure 2,2a-1 Slate tile (roof material)
4 Solar cell module 5,205 Eaves mounting bracket (eave mounting fixture)
6 Intermediate mounting bracket (intermediate mounting bracket)
DESCRIPTION OF SYMBOLS 10 Solar cell panel 15 Reinforcement member 25 Solar cell 27 Cell sealing area 45 Protrusion part 63 Holding part 64,264 Support base part 65 Roof member holding recessed part 77 Leg part 151 2nd recessed part (ridge side holding recessed part)
152 3rd recessed part (eave side holding recessed part)

Claims (8)

A flat solar cell panel having a light receiving surface, and a solar cell module comprising a reinforcing member fixed to the back surface of the solar cell panel,
The solar cell panel is provided with a cell sealing region for sealing solar cells, and in the cell sealing region, a plurality of solar cells arranged in a row are sealed,
The reinforcing member is a long member,
The solar cell module, wherein the reinforcing member is fixed to a position of the back surface of the cell sealing region that overlaps the row of solar cells in plan view. In the state laid in the building, the solar cell panel is installed such that the longitudinal direction of the solar cell panel is directed to the direction of the building's cross-beam, and the short direction of the solar cell panel is directed to the eaves of the building,
The center position of the cell sealing region in the eaves direction is a position closer to the eaves side than the center position in the eaves direction of the entire solar cell panel. Solar cell module. The reinforcing member has a protruding portion that protrudes outward from the back side of the solar cell panel,
3. The solar cell module according to claim 1, wherein the protruding end surface of the protruding portion is a flat surface parallel to the back surface of the solar cell panel.   The solar cell module according to any one of claims 1 to 3, wherein the reinforcing member is a metal member and has a cross-sectional shape of an inverted hat. A plurality of roof members, comprising the solar cell module according to any one of claims 1 to 4, and an eaves attachment for attaching the solar cell module to an eaves part of a building,
The eaves end fixture has a holding part for holding the eaves side part of the solar cell module, and a support base part for supporting the eaves side part of the solar cell module from below,
The vicinity of the eaves side end of the solar cell module is held by the holding unit, and the portion where the reinforcing member that is on the ridge side of the eaves side end of the solar cell module is fixed is supported by the support base. The roof structure characterized by being. The eaves attachment fixture further has a roof member holding recess for inserting an eave side end of the roof member located at the eave,
The holding part and the support base part are located above the roof member holding recess,
The support base portion is formed in a cantilever shape so as to protrude toward the ridge side, and a leg portion is formed at the protruding end portion,
The leg portion is normally in a position separated from the roof member, and is in a state of being in contact with the roof member when a certain load is applied to the solar cell module fixed by the eaves edge fixture. The roof structure according to claim 5. An intermediate fixture for fixing the two solar cell modules arranged adjacent to each other in the eaves-ridge direction;
The intermediate fixture includes an eaves-side holding recess for holding the ridge side portion of the solar cell module located on the eave side, and a ridge-side holding recess for holding the eave side portion of the solar cell module located on the ridge side. Have
The roof structure according to claim 5 or 6, wherein the reinforcing member integrally fixed to the solar cell module located on the ridge side is located on the ridge side with respect to the ridge-side holding recess. An eaves fitting for attaching a solar cell module to the eaves part of a building,
The building has a basic roof structure formed by arranging a plurality of roof members on a roof base,
A holding part for holding the eaves side part of the solar cell module, a support base part for supporting the eaves side part of the solar cell module from below, and an eaves side end part of the roof member located at the eaves edge A roof member holding recess for insertion,
The holding part and the support base part are located above the roof member holding recess,
The support base portion is formed in a cantilever shape so as to protrude toward the ridge side, and a leg portion is formed at the protruding end portion,
The said leg part is in the position spaced apart from the said roof member in normal time, and when the load more than fixed is applied to the said solar cell module, it will be in the state which contacted the said roof member, It is characterized by the above-mentioned. Eaves fittings.

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