JP2010059751A - Roofing material-type solar battery panel device and in-between cover body therefor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain a roofing material-type solar battery panel device which enables cooling carried out through ventilation and the discharge of rainwater to be properly applied to each of solar battery panels, and which suppresses leakage of water from between the juxtaposed solar battery panels. <P>SOLUTION: The in-between cover body 11 is elongated between the two solar battery panels 1, which are juxtaposed in a direction orthogonal to the pitch of a roof. The in-between cover body 11 comprises: an H-shaped body 11A, which forms an H-shaped cross section, in which right and left U-shaped cross-section erected portions 11d provided in an upper portion are fitted into the key portions 6e of right and left frames 6 facing each other, respectively, and in which rising portions 12g of opposed guide plates 12 are sandwiched, in a straddled manner between right and left U-shaped cross-section leg portions 11e provided in a lower portion; and a crown-shaped portion 11B, which is provided in such a manner as to widen upward from a central portion of the H-shaped body 11A, and which closes the opening formed between the right and left frames 6 facing each other. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention is a roof material type solar cell in which a plurality of solar cell panels are laid in a staircase shape so that ends thereof overlap each other in the roof gradient direction, and a plurality of solar cell panels are laid in line in the direction orthogonal to the roof gradient. The present invention relates to a battery panel device and a cover member provided between two solar cell panels provided side by side in a direction perpendicular to the roof gradient of the roof material type solar cell panel device.

  Conventionally, in a roof material type solar cell panel apparatus in which a plurality of solar cell panels are laid in a staircase pattern in the roof gradient direction so that a part of another solar cell panel overlaps the edge of the ridge side, While providing a vent on the eaves side of the lower solar cell panel, an exhaust port was provided on the ridge or the ridge side of the uppermost solar cell panel to form a ventilation path. Therefore, the temperature of the air rises by cooling the first-stage solar cell panel, and when the second-stage and third-stage solar cell panels are further cooled, the temperature of the air greatly rises up to the uppermost stage. The cooling effect was not sufficient. Further, conventionally, rails or fences have been provided at the connecting portions of the solar cell panels to prevent rainwater from leaking to the roof surface. Furthermore, fire prevention measures have been taken by providing a solar cell panel on the sheet metal. In other words, waterproofing, ventilation cooling, and fire prevention were individually handled.

  For example, a roof plate with a solar cell proposed in Patent Document 1 below is a metal roof plate in which a solar cell module is attached to the front surface and a heat insulating backing material is bonded to the back surface, and the bonding surface of the heat insulating backing material A ventilation groove in the direction of the roof slope is arranged in a row. In the roof plate with a solar cell having such a configuration, a ventilation channel from the eaves to the ridge is formed on the back surface of the metal roof plate with good thermal conductivity. This ventilation flow is basically based on constant natural convection or wind from the eaves of the building roof to the wing, and grasps the heat dissipation from the metal roof plate to which the solar cell module is attached. Exhaust outside. This prevents the high temperature of the solar cell module.

  Moreover, the roof panel with a solar cell proposed in the following Patent Document 2 is provided with a ventilation space between the roof panel and the solar cell module attached to the upper surface side, or in a position close to the solar cell module through the roof panel. The ventilation space communicates with an air flow opening opened in the eaves side engagement portion of the roof panel and an open opening opened in the vicinity of the locking portion on the ridge side so as to allow air flow. In the roof panel with a solar cell having such a configuration, an air flow from the eave side to the ridge side can be formed for each roof panel, and the solar cells of the solar cell module can be efficiently cooled. Even if a cooling airflow is not formed between the other roof panels provided in the solar cell, high photovoltaic power generation efficiency can be secured in the solar battery cell.

  Furthermore, in the solar cell panel mounting structure proposed in Patent Document 3 below, the panel includes an outer frame as a substantially rectangular frame, and an inner frame to which a solar cell module accommodated in the outer frame is mounted. The port side of the outer frame is configured to be slidably mounted on the inner frame and to be removable. Usually, the inner frame is inserted into the outer frame, and the side wall of the port and the bag main body are fixed with screws or the like. In the case of inspection, repair, and replacement of the solar cell module, the solar cell module can be taken out by releasing the tightening of screws, etc., and sliding the side wall away from the outer frame. Can be quickly inspected, repaired and replaced.

Japanese Patent No. 3322812 JP 2000-17803 A JP 2000-27395 A

  In the solar cell panel device, when the solar cell panel receives sunlight, the temperature rises simultaneously with power generation, and the air on the back surface is warmed to increase the temperature. Crystalline solar cell panels have a characteristic that power generation efficiency decreases when the temperature rises, and the temperature rise is suppressed by ventilating the air on the back surface.

  The conventional temperature control method is to provide a ventilation port on the eave side of the solar cell panel on the most eave side, vent the back surface of the solar cell panel, and communicate the ventilation of multiple levels of solar cell panels to the building side. The ventilation passage is provided so that the solar cell panel can be discharged from the building side, and the entrance temperature of the first-stage solar cell panel is low, but the entrance temperature after the second stage is high, which is effective. The cooling effect of the solar cell panel was difficult to obtain.

  Conventionally, as a waterproofing method, a cover between solar battery panels or a tub or rail is provided inside to prevent rainwater from entering, or rainwater leaking inside is guided into the tub or rail and drained. However, for rainwater with wind, rainwater may jump or reverse due to pressure and air flow, and it was not very effective against such rainwater, so more effective measures against water leakage Was desired.

  Furthermore, in addition to the above, in the case of having two solar cell panels provided side by side in a direction perpendicular to the roof gradient, water may leak from between the two solar cell panels to the roof surface, and an improvement is desired. It was.

  Furthermore, conventionally, in order to provide a fireproof function, it was necessary to cover the lower part of the solar cell panel with a sheet metal or a fireproof member separately from the above structure. In order to solve each of the above-mentioned problems of cooling, waterproofing and fireproofing, many parts are required, the structure is complicated, and the cost is increased.

  The present invention has been made in view of the above, and for each solar cell panel, cooling by ventilation and discharge of rainwater are performed satisfactorily, and the heated air is heated as it rises and becomes high temperature. The rainwater that has entered each solar cell panel does not accumulate and become a large amount when it flows to the lower stage, and further suppresses water leakage between the two solar cell panels provided side by side. An object of the present invention is to obtain a roof material type solar cell panel device that can be used, and a cover member that is used in the roof material type solar cell panel device.

  In order to solve the above-described problems and achieve the object, the roof material type solar cell panel device of the present invention is laid in a stepped manner so that the solar cell panels overlap each other in the roof gradient direction. In a roof material type solar cell panel apparatus that is laid in a plurality in line with a surface position aligned in a direction orthogonal to the roof gradient, a flat plate-shaped photovoltaic power generation body and an outer peripheral edge portion of the photovoltaic power generation function body are held It has a ridge side frame, an eaves side frame, and a pair of left and right frames, and the left and right frames are each formed in a key shape in cross section on the back side opposite to the photovoltaic power generation unit with the opening facing downward along the longitudinal direction. A solar cell panel having a key-like portion, and provided for each solar cell panel, spreads on the back side of the solar cell panel, mounts the solar cell panel, and forms a first ventilation path along the back side of the solar cell panel And both sides parallel to the roof slope A bottom portion having a rising portion bent in an L-shaped cross section toward the upper side, and a ridge side of the bottom portion, the solar cell panel being bent into a U-shaped cross section so as to surround the ridge side edge of the solar cell panel, Around the ridge side edge of the ridge side has a folded portion that forms a second ventilation path following the first ventilation path, and on the upper surface of the folded portion, the eave side end portion of the bottom of the guide plate adjacent to the ridge side In the overlapped part, the first unevenness is formed at the end of the eaves at the bottom, and the first unevenness is sunlit. An eaves-side opening communicating with the first ventilation path is formed between the battery panel and a second unevenness is formed at the eaves-side end of the upper surface of the folded portion. A guide plate that forms a ridge-side opening communicating with the second air passage between The guide plate fixture for supporting the guide plate from the roof surface and the two solar cell panels provided in the direction orthogonal to the roof gradient, having an H-shaped cross section and a U-shaped cross section provided at the top The left and right standing parts are fitted into the key parts of the left and right frames of the two installed solar panels from below, respectively, and the two guide plates that are installed are raised by the left and right leg sections having a U-shaped cross section provided at the bottom. H-shaped main body that straddles the lower end of the left and right leg portions with the bottom of the guide plate, and an upper opening that is formed so as to spread upward from the central portion of the H-shaped main body and is formed between the opposing left and right frames And a cover body having a coronal portion for closing the cover.

  According to the roof type solar cell panel device of the present invention, the guide plate is provided for each solar cell panel, spreads over the entire back surface side of the solar cell panel, and the solar cell panel is placed on the solar cell panel. Between the bottom of the solar cell panel and the ridge side edge of the solar cell panel. In the overlapping portion where the guide plate and the guide plate adjacent to the ridge side overlap with each other, the first unevenness is formed at the eave side end portion of the bottom of the guide plate. An eaves side opening that communicates the outside with the first ventilation path is provided by a gap formed between the first unevenness and the solar cell panel, and the eave side on the upper surface of the folded portion of the guide plate A second unevenness is formed at the end, and this second unevenness is Since a building-side opening that communicates the outside and the second ventilation path is provided by a gap formed between the solar panel and the solar panel when generating power by receiving sunlight, the temperature of the solar panel Rises, the air on the back surface is warmed to a high temperature, and the lightened air is discharged to the outside through the ridge-side opening, and along with this, the cooled air is drawn from the eave-side opening. In this way, an independent cooling air passage is formed for each solar cell panel, so that it does not accumulate and heat up as the warmed air rises, and the solar cell panel is good. Cooling is performed and temperature rise is suppressed.

  In addition, when rainwater is accompanied by strong winds, rainwater penetrates between the guide plate and the solar cell panel along the air pressure and tries to follow the same path as the air flow. Conversely, rainwater may enter from the ridge side opening on the ridge side of the guide plate. However, according to the roof material type solar cell panel device of the present invention, the eaves-side opening that connects the outside and the first ventilation path is provided by the gap formed between the first unevenness and the solar cell panel. Since the ridge side opening that connects the outside and the second ventilation path is provided by the gap formed between the second unevenness and the solar cell panel, rainwater enters from the eaves side opening. In both cases, when rainwater enters from the ridge side opening, the rainwater is quickly discharged outside without stagnation in the apparatus. Thereby, inundation to the roof surface of rainwater can be prevented.

  Furthermore, the left and right frames of the two solar cell panels provided side by side have a key-like portion formed in a cross-sectional key shape with the opening facing downward at the upper portions of the back surfaces facing each other, and two adjacent guide plates Each has a rising portion bent in an L-shaped cross section toward the upper side at the opposite end portions, and the intermediate cover body has an H-shaped cross section, and has a U-shaped cross section provided on the upper portion. H-shaped main body that fits the left and right standing parts into the key-like parts of the opposing left and right frames, and sandwiches the rising parts of the opposing guide plates with the left and right leg parts of the U-shaped cross section provided in the lower part, Since it has a crown-shaped portion that is provided so as to spread upward from the center portion of the H-shaped main body and closes the opening formed between the opposing left and right frames, it is difficult for rainwater to enter between two solar cell panels provided side by side And that it can be , Even if by any chance rainwater from entering between the solar panels, can be drained rapidly to the eaves side received this between the cover body or the guide plate, it is possible to prevent water leakage into the roof surface.

  Furthermore, since the guide plate covers the entire back surface of the solar cell panel, the solar cell panel can be produced by a spark from a nearby fire by making the guide plate with a non-combustible material such as a surface-treated steel plate, a stainless steel plate, or a refractory material. Even if destroyed, the spread of fire on the roof surface can be prevented.

  Hereinafter, embodiments of a roof material type solar cell panel device according to the present invention will be described in detail with reference to the drawings. Note that the present invention is not limited to the embodiments.

Embodiment FIG. 1 is a cross-sectional view showing a state of a solar cell panel laid in a plurality of steps in a roof gradient direction of a roof material type solar cell panel device according to the present invention. FIG. 2 is an enlarged cross-sectional view showing a detailed structure of a superposed portion that is enlarged from the portion A in FIG. 1 and overlaps the roof gradient direction of the solar cell panel.

  First, the general structure and operation will be described, and then the detailed structure and operation will be described. As shown in FIGS. 1 and 2, a flat plate-like solar cell panel 1 is laid in a plurality of steps in a stepwise manner in the roof gradient direction. Note that a plurality of solar cell panels 1 are laid in the direction orthogonal to the roof gradient in line with the surface position. The roof is configured such that a field board 17 is attached on a rafter 18 extending along a gradient direction, and a waterproof sheet 16 is further spread on the field board 17. The roof constructed in this way is shown horizontally in FIGS. 1 and 2, but in reality, the eave side (left side of the figure) is lowered and the ridge side (right side of the figure) is opposed. For example, it is inclined about 30 degrees. In the roof material type solar cell panel device as in the present embodiment, the flat plate-like solar cell panel 1 partially overlaps the other solar cell panels 1 adjacent to each other at the upper and lower ends like a roof tile. In this way, a plurality of steps are laid in a staircase pattern in the roof slope direction. That is, the solar cell panel 1 is laid in a plurality of stages so as to overlap the eaves side end of another solar cell panel 1 adjacent to the ridge side on the own ridge side end.

  The solar cell panel 1 is supported from the roof surface 19 (waterproof sheet 16) by a guide plate 12 that covers the back surface of the solar cell panel 1 and a guide plate fixture 14 that supports the guide plate 12. The guide plate fixture 14 is fixed to the roof surface 19 by a presser fitting 15 and a fixing screw 15a. The fixing screw 15 a passes through the waterproof sheet 16 and the field plate 17 and is fastened to the rafter 18.

  As a feature of the present embodiment, an independent guide plate 12 is provided for each solar cell panel 1. The guide plate 12 mounts the solar cell panel 1 on the upper surface thereof, covers the entire back surface of the solar cell panel 1, and forms a first ventilation path F <b> 1 with the solar cell panel 1. Further, the guide plate 12 covers the eaves side end of the solar cell panel 1 so as to surround the eaves side end of the solar cell panel 1, and forms a second ventilation path F <b> 2 around the eaves side end of the solar cell panel 1.

  And in the eaves side edge part of the solar cell panel 1, between the solar cell panel 1 and the guide plate 12, the eaves side opening part (1st inclination formed in the guide plate 12) connected to the 1st ventilation path F1. On the other hand, the eaves side end of the solar cell panel 1 of the guide plate 12 is covered at the ridge side end of the solar cell panel 1. In the upper part of the portion, the ridge-side opening (between the second flat surface portion 12d of the guide plate 12 and the solar cell panel 1) communicates with the second ventilation path F2 between the solar cell panel 1 and the guide plate 12. Are formed). That is, the eaves side opening and the ridge side opening are provided for each solar cell panel 1.

  An outline of the operation will be described. In the figure, a one-dot chain line arrow indicates the flow of air. In FIG. 2, the circulation of air around the solar cell panel 1 is divided into the eaves side and the building side. Here, air circulation occurs in the same way around each solar cell panel 1, and it is considered as a circulation operation around one solar cell panel 1 with the positions indicated by B in FIG. May be.

  When the solar cell panel 1 receives sunlight, the temperature of the solar cell panel 1 rises. Thereby, the air of the back surface (B in FIG. 2) of the solar cell panel 1 is warmed and becomes high temperature. The air that has become hot and lighter is discharged to the outside (C in FIG. 2) from the ridge-side opening. At this time, since the air on the back surface (B in FIG. 2) of the solar cell panel 1 operates so as to maintain the atmospheric pressure, the outdoor air (D in FIG. 2) from the eaves-side opening becomes the back surface of the solar cell panel 1 (FIG. 2). 2) B). In this way, a circulation of air flowing through the back surface is formed for each one of the solar cell panels 1. This circulation of air suppresses the temperature rise of the solar cell panel 1.

  Next, a detailed structure will be described. FIG. 3 is a plan view of the solar cell panel 1. 4 is a cross-sectional view taken along the line GG in FIG. FIG. 5 is a partial enlarged view showing the eaves side frame and the ridge side frame in FIG. 4 in an enlarged manner. FIG. 6 is a front view of the solar cell panel 1.

  The solar cell panel 1 is composed of a base plate 2 that is a photovoltaic power generation unit manufactured in the form of a square flat plate, and a frame body 3 that is attached to the outer peripheral edge of the base plate 2 in a frame shape.

  The base 2 is a back surface composed of a surface protection substrate and a weather resistant film, with a plurality of solar cells 2a electrically connected in series by a dove wire sandwiched between a transparent heat-fusing material sheet forming a filler layer. It is sandwiched between the protective materials, and then heated while evacuating, and the solar cells 2a, the front surface protective substrate and the back surface protective material are fused and integrated with a transparent heat fusion material sheet to form a rectangular flat plate It is configured. The frame 3 is formed in a rectangular frame shape by a bar-shaped eaves side frame 4, a ridge side frame 5 and a pair of left and right frames 6 which are each prepared by surface treatment after extrusion molding of an aluminum material.

  In FIG. 5, the eaves-side frame 4 is formed into a bar shape having the same cross-sectional shape over the entire length, has a U-shaped cross-section and sandwiches the outer edge of the solar cell panel 1, and the U-shaped portion An extension portion 4b formed so as to extend from 4a to the back side of the panel, a hollow stealing portion 4c formed inside the extension portion 4b, and an opening facing downward on the back surface of the U-shaped portion 4a The upper corner key portion 4e is formed in a key shape in cross section. That is, the eaves side frame 4 is a solid type (open shape of extrusion molding), and is a rectangular cross section provided with an open portion 4d in which a part of the cross section is opened over the entire length on the eave side surface (fixed surface). It is formed in a rod shape having a stealing portion 4c. Five fixing pieces (screw mounting members) 8 are housed in the stealing portion 4c. The fixing piece 8 is slidable along the stealing portion 4c (see FIG. 6), has a female screw formed, and a first fixing claw 12e and a second fixing claw 12h (described later) (see FIG. 7). (See FIG. 2 and FIG. 9).

  On the other hand, the ridge-side frame 5 has a U-shaped cross-section and sandwiches the outer edge portion of the solar cell panel 1, and an extension formed so as to extend from the U-shaped portion 5a to the back side of the panel. 5b, an inner flange portion 5c formed inwardly extending from the lower end of the extension portion 5b, a ridge-side frame opening groove 5d formed at the lower end of the inner flange portion 5c, and a rear surface of the U-shaped portion 5a. The upper corner key portion 5e is formed in a key shape in cross section on the outside. The ridge-side frame opening groove 5 d is a notch provided at the lower end of the ridge-side frame 5, and a plurality of ridge-side frame opening grooves 5 d are formed in the longitudinal direction of the ridge-side frame 5. The ridge-side frame opening groove 5d is provided for the purpose of communicating the first ventilation path F1 and the second ventilation path F2. In the present embodiment, in order to facilitate processing and to improve drainage of rainwater, the lower end of the ridge-side frame 5 is cut away, and the first ventilation path F1 and the second ventilation path. Although the opening which connects F2 is provided, you may make the 1st ventilation path F1 and the 2nd ventilation path F2 communicate, for example by making a hole in the ridge side frame 5.

  Although the details of the left and right frames 6 are not shown, the left and right frames 6 have substantially the same cross-sectional shape as the ridge-side frame 5, and have a U-shaped portion that sandwiches the outer edge portion of the solar cell panel 1 and an opening at the back of the U-shaped portion. The upper corner key portion 6e is formed in a key shape in cross section with the surface facing downward (see FIG. 6).

  With respect to the frame 3, the upper edge of the base 2 is press-fitted with a sealing member sandwiched in the U-shaped part 5 a of the ridge-side frame 5, and the lower edge of the base 2 is U-shaped with the eaves-side frame 5. The seal member is sandwiched and press-fitted into the portion 5a, and the left and right edge portions of the base 2 are press-fitted with the seal member sandwiched between the U-shaped portions of the left and right frames 6, respectively. Next, mounting screws (not shown) are fastened to the screw holes of the eaves side and the ridge side frames 4 and 5 through the screw holes on both ends of the left and right frames 6, respectively, so that the solar cell panel 1 shown in FIG. Assembled.

  FIG. 7 is a perspective view of the guide plate 12. The guide plate 12 is produced by bending a metal flat plate made of a non-combustible material such as a surface-treated steel plate, a stainless steel plate, or a refractory material. The guide plate 12 has a bottom portion 12A that covers the entire back surface of the solar cell panel (not shown), and a folded portion provided on the ridge side of the bottom portion 12A by being folded into a U-shaped cross section so as to surround the ridge side end portion of the solar cell panel. Part 12B.

  The bottom portion 12 </ b> A extends over the entire back surface side of the solar cell panel 1, the solar cell panel 1 is placed on the top surface, and the first ventilation path F <b> 1 is formed on the back surface of the solar cell panel 1. Specifically, the bottom 12A supports the frame 3 of the solar cell panel 1 on the upper surface, and a space surrounded by the base 2, the frame 3, and the bottom 12A, which are flat plate-like photovoltaic power generation units, It forms as the 1st ventilation path F1. On the other hand, the folded portion 12B exists around the ridge side edge of the solar cell panel 1 so as to surround the solar cell panel 1 at a predetermined distance and folds the ridge side edge of the solar cell panel 1. The ventilation path F2 is formed. The first ventilation path F1 and the second ventilation path F2 are communicated by the ridge-side frame opening groove 5d provided at the lower end of the ridge-side frame 5 as described above.

  The guide plate 12 has the eaves side end portion of the bottom portion 12A of the other guide plate 12 adjacent to the ridge side superimposed on the upper surface of the U-shaped cross section of the folded portion 12B in a state where the solar cell panel 1 (not shown) is placed. It is laid in multiple steps in the roof slope direction (FIGS. 1 and 2). At this time, the upper surface of the folded portion 12B, which is a portion overlapping each other, and the eaves side end portion of the bottom portion 12A constitute an overlapping portion.

  A plurality of first inclined portions 12a are provided at the eaves side end portion (overlapping portion) of the bottom portion 12A. The plurality of first inclined portions 12 a are formed by bending a predetermined width portion downward from the eaves side end of the guide plate 12. The first inclined portion 12a is provided intermittently with a predetermined interval along the side. That is, the first inclined portion 12a formed by bending downward and the flat portion that cannot be bent are alternately formed along the side. The 1st inclination part 12a is formed by press work, and is made into the slope which becomes low toward the eaves side. A plurality of first inclined portions 12a provided intermittently at the eaves side end of the guide plate 12 are formed between the first ventilation path F1 formed between the solar cell panel 1 and the guide plate 12 and the outside. The eaves side opening part which communicates is formed.

  A plurality of second inclined portions 12b are provided at the eave side end portion (overlapping portion) of the upper support portion having a U-shaped cross section of the folded portion 12B. The plurality of second inclined portions 12b are formed by bending a predetermined width portion downward from the eaves side end of the folded portion 12B. Similarly to the first inclined portion 12a, the second inclined portion 12b is provided intermittently with a predetermined interval along the side. The second inclined portion 12b is also formed by pressing and is formed as an inclined surface that decreases toward the eaves side. The plurality of second inclined portions 12b provided intermittently at the eaves side end of the folded portion 12B are formed between the second ventilation path F2 formed around the ridge side end of the solar cell panel 1 and the outside. The ridge side opening part which connects is formed.

  The second inclined portion 12b and the first inclined portion 12a have the same shape, and the second inclined portion 12b and the first inclined portion 12a of the other solar cell panel 1 adjacent to the building side Are overlapped in close contact with the surrounding flat portion at the overlapping portion. By the action of this overlapping portion, an effect of suppressing water intrusion from the overlapping mating surfaces can be expected, and unexpected water leakage can be suppressed. Further, the second inclined portion 12b and the first inclined portion 12a of the other solar cell panel 1 adjacent to the ridge side overlap with each other, whereby the eaves of the other guide plate 12 adjacent to the ridge side opening and the ridge side are overlapped. The side opening is provided at a position adjacent to the side opening. In this way, the openings are concentrated and formed at one place, so that the structure can be simplified and the number of parts can be reduced.

  An L-shaped first fixing claw 12e extends from the first flat surface portion 12c. The first fixed claw 12e extends from the eaves side edge of the first flat surface part 12c to the eaves side for a predetermined length, is bent upward from there, and has an L shape. A screw hole is drilled in the first fixing claw 12e, and the lower end of the solar cell panel 1 is fixed by fastening the fixing screw 13 inserted into the screw hole to the fixing piece 8.

  An L-shaped second fixed claw 12h is provided on the second flat surface portion 12d on the upper surface of the folded portion 12B. The second fixed claws 12h are provided at three locations, that is, the second flat portion 12d at the center and the second flat portions 12d at both ends. The second fixing claw 12h extends from the eaves side edge of the second flat surface part 12d to the eaves side for a predetermined length, and is bent upward from there to form an L shape. Similarly to the first fixing claw 12e, the second fixing claw 12h has a screw hole, and the fixing screw 13 inserted into the screw hole is fastened to the fixing piece 8 so that the ridge side The lower end of the solar cell panel 1 adjacent to is fixed.

  The first plane portion 12c and the second plane portion 12d overlap at the overlapping portion as described above, and the first plane portion 12c and the first plane portion 12d extending from the second plane portion 12d overlap each other. The fixed claw 12e and the second fixed claw 12h have a fixed surface with a screw hole formed on the same plane. Thereby, the first fixing claw 12e and the second fixing claw 12h are fastened to the fixing piece 8 housed in the same stealing portion 4c provided in the eaves side frame 4. That is, the fixing plate 8 provided on the eaves side frame 4 fixes the guide plate 12 of the solar cell panel 1 to be placed and the other guide plate 12 that is adjacent to and overlaps the eave side. .

  The solar cell panel 1 is fixed to the guide plate 12 by first inserting the ridge side end portion of the solar cell panel 1 into the folded portion 12B of the guide plate 12, and then the eave side end portion by the fixing screw 13. This is performed by being fastened to the fixing claw 12e. At this time, the ridge side end portion of the solar cell panel 1 is supported by being sandwiched between the second inclined portion 12b and the bottom portion 12A in the folded portion 12B. And the assembly of the solar cell panel 1 and the guide plate 12 combined in this way is connected to the second fixed claw 12h at the eaves side end portion and laid in a plurality of steps.

  Further, the left and right ends of the guide plate 12 in the direction orthogonal to the roof gradient direction are bent upward to provide a rising portion 12g. The rising portion 12g works as a waterproof embankment of rainwater dripped on the guide plate 12, and suppresses inundation of the roof surface 19.

  Further, a guide plate fixture 14 is provided at the ridge side end of the folded portion 12B. The guide plate fixture 14 is an L-shaped fixture made by bending a metal flat plate made of a non-combustible material such as a surface-treated steel plate, a stainless steel plate, or a refractory material, and has one end at the ridge side end of the folded portion 12B. The other end is fastened to the rafter 18 by a presser fitting 15 and a fixing screw 15a (see FIG. 2). The guide plate fixture 14 supports the solar cell panel 1 efficiently and stably by supporting the folded portion 12B on which the solar cell panel 1 is overlapped and which is most heavily loaded from the roof surface 19.

  FIG. 8 is a front view showing a state in which the solar cell panel 1 is placed on the guide plate 12. 9 is a cross-sectional view taken along line HH in FIG. The arrows in FIG. 8 indicate the air flow. The part shown by the dotted line of the arrow has shown the part hidden with the solar cell panel 1 and the guide plate 12. FIG. Detailed operations will be described with reference to FIGS.

  In the roof material type solar cell panel device configured as described above, the temperature of the solar cell panel 1 rises when the solar cell panel 1 starts to generate electricity after being exposed to the sun during the daytime. The temperature of the air in one ventilation path F1 also rises. Since the lightened air rises, it passes through the ridge-side frame opening groove 5d formed at the lower end of the ridge-side frame 5 to reach the second ventilation path F2, and further to the ridge-side opening (second flat portion 12d and It is emitted to the outdoors through a gap formed between the solar cell panel 1 and the solar cell panel 1. Along with this, the externally cooled air is sucked into the first ventilation path F1 on the back surface of the solar cell panel 1 from the eaves side opening (first inclined portion 12a). This air flow effectively cools the solar cell panel 1.

  As for the intrusion of rainwater and its drainage, the water generally flows from a high place to a low place, so it flows from the building side to the eaves side. In the case of rain water with heavy wind or heavy rain, it may climb from a low place to a high place, and rain water entering from the lower side of the solar cell panel 1 is from the eaves side opening (first inclined portion 12a). It enters the first ventilation path F1 on the back surface of the solar cell panel 1 and rises to a position corresponding to the pressure. When the weight (pressure) of rainwater is greater than the pressure at which rainwater tries to rise, the rainwater flows backward and flows out of the eaves-side opening. At this time, since the bottom 12A of the guide plate 12 and the eaves-side opening are flat and there is no place where water stagnates, rainwater flows out smoothly. On the other hand, when the pressure at which the heavy rainwater is going to rise is larger than the weight (pressure) of the rainwater, the rainwater climbs the turn-up portion 12B and the ridge side opening (between the second flat surface portion 12d and the solar cell panel 1). Flows out of the gap).

  Contrary to the above, when rainwater enters from the ridge side opening, the rainwater enters the second ventilation path F2 of the folded portion 12A. This rainwater passes through the ridge-side frame opening groove 5d formed at the lower end of the ridge-side frame 5, reaches the first ventilation path F1 on the back surface of the solar cell panel 1, and then flows out from the eave-side opening. That is, in both cases where rainwater enters from the eaves-side opening and rainwater enters from the ridge-side opening, the rainwater is quickly discharged outside without stagnation in the apparatus.

  In addition, as shown in FIG. 9, the front-end | tip of the 1st inclination part 12a is bent back so that it may become parallel to the roof surface 19, and it is set as the inclination front-end | tip bending part 12j. The same applies to the tip of the second inclined portion 12b. This eliminates a sharp portion formed inside and outside the guide plate 12, reduces resistance when the solar cell panel 1 is attached to and detached from the guide plate 12, and prevents the frame 3 from being damaged. Has been. It should be noted that the turning back of the tip may not be parallel to the roof surface 19 but may be a reverse gradient with respect to the inclined portion.

  Thus, in the roof material type solar cell panel device according to the present embodiment, cooling by ventilation and drainage of rainwater are effectively performed on each solar cell panel 1 and the solar cell panel 1 is warmed. As the air rises and is not added to each solar cell panel 1 in sequence and becomes hot, rainwater that has entered the solar cell panel 1 flows into the lower stage and is added to each other. It will not be. Thereby, high cooling performance and waterproof quality can be obtained.

  Furthermore, since the guide plate 12 is made of a non-combustible material such as a surface-treated steel plate, a stainless steel plate, or a refractory material, for example, when a spark is dropped on the solar cell panel 1 by a nearby fire, Although it is assumed that the glass of the battery panel 1 is broken and the resin inside melts and the sparks fall to the roof surface 19, the guide plate 12 prevents further fire.

  The combination of the solar cell panel 1 and the guide plate 12 may be performed before shipment from the factory or at the time of construction. However, a slidable fixing piece 8 should be incorporated in the eaves side frame 4 in advance. Therefore, the assembly process can be easily performed at any place. In addition, the fixing between the solar cell panel 1 and the guide plate 12 and the connection with the other solar cell panel 1 connected to the ridge side are performed by the fixing piece 8 housed in the eaves side frame 4. , Simplify the structure, reduce the number of parts and improve workability.

  In addition, although the eaves side opening part of the said embodiment is comprised by the some 1st inclination part 12a intermittently provided in the eaves side edge part of the guide plate 12, the eaves side connected to a ventilation path The opening does not necessarily need to be a slope, and for example, the opening may be simply provided with irregularities at the eaves side end of the guide plate 12. However, by making the eaves side opening communicating with the ventilation path into a slope, the air flow can be made smooth and the pressure loss can be reduced, so that the amount of circulating air can be increased and efficient cooling can be performed. . The same applies to the ridge-side opening.

  FIG. 10 is a plan view of a connecting portion of solar cell panels arranged in a direction orthogonal to the roof gradient direction. FIG. 11 is a front sectional view of the connecting portion of the solar cell panel. An intermediate cover body 11 is provided between the two solar cell panels 1 arranged in a direction orthogonal to the roof gradient direction. The intermediate cover body 11 has the same length as the two opposing sides (left and right frame 6) of the solar cell panel 1, and extends over the entire length between the two opposing sides.

  The intermediate cover body 11 is inserted between the two solar cell panels 1 provided side by side while being slid in the length direction while engaging both sides with the left and right frames 6 and the guide plate 12. The cover (eave side blocking plate) 22 and the ridge side cover (building side blocking plate) 23 are screwed to the screw receiving portion 11c with a fixing screw 24 so that the openings at both ends are closed, and at the same time in the length direction The movement to is restricted and fixed.

  In FIG. 11, the intermediate cover body 11 is manufactured by extrusion molding of an aluminum material, has the same cross-sectional shape over the entire length, and extends upward from the H-shaped main body 11 </ b> A having a substantially H-shaped cross section and the central portion of the H-shaped main body 11 </ b> A. It is comprised from the coronal part 11B of a general | schematic cross-section E shape. A screw receiving portion 11c molded in a C-shaped cross section is provided at the central portion of the H-shaped main body 11A. The crown portion 11B extends upward from the screw receiving portion 11c and closes the upper opening formed between the opposing left and right frames 6.

  Upper corner key portions (key-like portions) 6e provided on the upper rear portions of the left and right frames 6 are arranged to face each other. Further, rising portions 12g formed on the end sides of the guide plate 12 are also arranged to face each other. The H-shaped upper half of the H-shaped main body 11A of the intermediate cover body 11 constitutes a left-right standing portion 11d having a U-shaped cross section that opens upward. The left and right standing portions 11d are fitted into the upper corner key portions (key-shaped portions) 6e of the opposite left and right frames 6 from below, respectively. The left and right standing portions 11 d extend to the vicinity of the upper portions of the left and right frames 6. In other words, the left and right standing portion 11d extends to and engages with a narrow groove that opens downwardly formed by the upper corner key portion 6e. Further, the lower half of the H shape of the H-shaped main body 11A of the intermediate cover body 11 constitutes left and right leg portions 11e having a U-shaped cross section that opens downward. The left and right leg portions 11e are sandwiched so as to straddle the rising portion 12g of the opposing guide plate 12.

  A drain hole 11f is formed in the horizontal portion of the H-shaped main body 11A of the intermediate cover body 11. The opposite end sides of the guide plate 12 extend to the vicinity of the center of the H-shaped main body 11A so as to receive the water dropped from the drain hole 11f. That is, the rising portion 12g provided at the opposite end portion of the guide plate 12 is set to be closer to the center than the drain hole 11f.

  In the roof material type solar cell panel device having such a configuration, the outer peripheral edge portion of the photovoltaic function body is composed of a flat-plate-like photovoltaic power generation body, a ridge side frame 5, an eaves side frame 4, and a pair of left and right frames 6. The solar cell panel 1 having a frame 3 covering the solar cell panel 1 and provided for each solar cell panel 1, spread on the back side of the solar cell panel 1, and when the solar cell panel 1 is placed, a guide plate 12 and a guide plate 12 are provided. A guide plate fixture 14 supported from the roof surface, and a cover body 11 extending between two solar cell panels provided side by side in a direction orthogonal to the roof gradient direction are provided.

  And the left and right frames 6 of the two solar cell panels 1 provided side by side have upper corner key portions 6e formed in a cross-sectional key shape with the openings facing downwards at the upper portions of the back surfaces facing each other, The two adjacent guide plates 12 have rising portions 12g that are bent in an L-shaped cross section toward the upper side at opposite end portions, and the intermediate cover body 11 has an H-shaped cross section. The left and right standing portions 11d having a U-shaped cross section provided at the upper portion are respectively fitted into the upper corner key portions 6e of the opposing left and right frames 6, and are opposed by the left and right leg portions 11e having a U-shaped cross section provided at the lower portion. An H-shaped main body 11A sandwiched so as to straddle the rising portion 12g of the guide plate 12, and a crown-shaped portion that is provided so as to spread upward from the central portion of the H-shaped main body 11A and closes the opening formed between the opposing left and right frames 11B Therefore, inundation of rainwater entering between the two solar cell panels 1 installed can be suppressed, and even if it is inundated, it is received by the H-shaped main body 11A and the H-shaped main body 11A and drained to the eaves side. Water leakage to the roof surface can be prevented.

  FIG. 12 is a front cross-sectional view of a connecting portion of a solar cell panel showing another example of the intermediate cover body. In the intermediate cover body 21 shown in FIG. 12, the left and right standing portions 21d of the H-shaped main body 21A are respectively connected to the upper corner key portions (key-like portions) 6e of the left and right frames 6 as in the case of FIG. It is fitted from below. Further, the left and right leg portions 21e of the H-shaped main body 21A are sandwiched so as to straddle the rising portions 12g of the guide plate 12 facing each other. Further, a drain hole 21f is formed in the horizontal portion of the H-shaped main body 21A. A screw receiving portion 21c molded in a C-shaped cross section is provided at the central portion of the H-shaped main body 21A. The crown portion 21B extends upward from the screw receiving portion 21c and closes the upper opening formed between the opposing left and right frames 6.

  In this example, the coronal portion 21B has a substantially T-shaped cross section, extends upward from the central portion of the H-shaped main body 21A, extends to the left and right, and extends to a position overlapping the upper surfaces of the opposing left and right frames 6. In addition, in the cover body 21 during the present embodiment, the left and right leg portions 21e have outer flange portions 21g extending in the solar cell panel direction (direction opposite to the facing direction) at the lower end portions. . The outer flange portion 21g is sandwiched between the left and right frames 6 and the guide plate 12. The intermediate cover body 21 sandwiches the left and right frame 6 between the crown-shaped portion 21B that contacts the upper surface of the left and right frame 6 and the outer flange portion 21g, and the outer flange portion 21g is interposed between the left and right frame 6 and the guide plate 12. By being sandwiched between the gaps, the movement in the vertical direction is restricted and the engagement with the solar cell panel 1 is ensured.

  As described above, the crown-shaped portion 21B of the intermediate cover body 21 has a T-shaped cross section and extends to a position overlapping the upper surfaces of the opposing left and right frames 6, thereby making it possible to make rainwater more difficult to enter. Further, an outer flange portion 21g extending so as to project outward is provided at the lower end portion of the left and right leg portions 21e, and the outer flange portion 21g is sandwiched between the left and right frames 2 and the guide plate 12 so that the inner cover body 21 It is possible to prevent leakage of rainwater that has entered the solar cell panel 1.

  As described above, according to the present invention, a plurality of solar cell panels are laid in a staircase shape so that the end portions overlap each other in the roof gradient direction, and a plurality of solar cell panels are laid in line in the direction orthogonal to the roof gradient. Suitable for roof type solar panel devices.

It is sectional drawing which shows the mode of the solar cell panel laid in multiple steps by the roof gradient direction of the roof material type solar cell panel apparatus which concerns on this invention at step shape. It is a detailed expanded sectional view of the superposition | polymerization part which overlaps with the roof gradient direction of the solar cell panel which expands and shows the A section of FIG. It is a top view of a solar cell panel. FIG. 4 is a cross-sectional view taken along the line GG in FIG. 3. It is the elements on larger scale which expand and show the part of the eaves side frame and ridge side frame of FIG. It is a front view of a solar cell panel. It is a perspective view of a guide plate. It is a front view which shows the state which mounted the solar cell panel in the guide plate. It is arrow sectional drawing which follows the HH line | wire of FIG. It is a top view of the connection part of the solar cell panel located in a direction orthogonal to a roof gradient direction. It is front sectional drawing of the connection part of a solar cell panel. It is front sectional drawing which shows the other example of the connection part of a solar cell panel.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Solar cell panel 2 Base | substrate 2a Solar cell 3 Frame 4 Eaves side frame 4a, 5a U-shaped part 4b, 5b Extension part 4c Stealing part 4d Open part 4e, 5e, 6e Upper corner key part (key shape part)
5 Building side frame 5c Inner flange 5d Building side frame opening groove 6 Left and right frame 8 Fixing piece (screw mounting member)
11 and 21 Cover body 11A, 21A H-shaped main body 11B, 21B Crown-shaped part 11c, 21c Screw receiving part 11d, 21d Left and right standing part 11e, 21e Left and right leg part 11f, 21f Drain hole 12 Guide plate 12A Bottom part 12B Folding Part 12a First slope (eave side)
12b 2nd slope (ridge side)
12c First flat part (eave side)
12d Second plane (building side)
12e First fixed claw 12g Rising part 12h Second fixed claw 12j Inclined tip bending part 13, 24 Fixing screw 14 Guide plate fixing tool 15 Holding metal 15a Fixing screw 16 Waterproof sheet 17 Base plate 18 Rafter 19 Roof surface 21g Outer flange Part 22 eaves side cover (eave side obstruction board)
23 Building side cover (Building side closing plate)

Claims (6)

Roof panel type solar panel in which solar panels are laid in multiple steps in a stepwise manner so that the ends overlap each other in the direction of the roof slope, and are arranged side by side in the direction perpendicular to the roof slope in line with the surface position. In the device
A flat plate-shaped photovoltaic power generation unit, and a ridge side frame, an eaves side frame, and a pair of left and right frames that hold an outer peripheral edge of the photovoltaic generation unit, the left and right frames being opposite to the photovoltaic generation unit The solar cell panel having a key-like portion formed in a cross-sectional key shape on the back side which is the side and facing the opening downward along the longitudinal direction;
It is provided for each solar cell panel, spreads on the back side of the solar cell panel, mounts the solar cell panel and forms a first ventilation path along the back surface of the solar cell panel, and is parallel to the roof gradient And a bottom portion having a rising portion bent in an L-shaped cross-section toward the upper side at both end sides, and a ridge side of the bottom portion being folded into a U-shaped cross-section so as to surround the ridge-side edge of the solar cell panel. Provided around the ridge side edge of the solar cell panel, and has a folded portion that forms a second ventilation path following the first ventilation path, and is adjacent to the ridge side on the upper surface of the folded section. The eaves side end of the bottom of the other guide plate is overlapped and laid in a plurality of steps in the roof gradient direction together with the solar cell panel placed thereon, and in the overlapped overlapping portion, the eaves side end of the bottom The first unevenness The eaves-side opening that communicates with the first ventilation path is formed between the first unevenness and the solar cell panel, and the second unevenness is formed at the eaves-side end of the upper surface of the folded portion. A guide plate that is formed and forms a ridge-side opening that communicates with the second ventilation path between the second unevenness and the solar cell panel;
A guide plate fixture for supporting the guide plate from the roof surface;
The two solar cells provided between the two solar cell panels provided in the direction orthogonal to the roof gradient, having an H-shaped cross section and a U-shaped cross section provided on the upper side. The left and right leg portions are fitted into the key-like portions of the left and right frames of the panel from below, and the left and right leg portions straddle the rising portions of the two guide plates provided at the lower portion with the left and right leg portions having a U-shaped section. An H-shaped main body that makes the lower end of the guide plate abut against the bottom portion of the guide plate, and a crown shape that is provided so as to spread upward from a central portion of the H-shaped main body and closes an upper opening formed between the opposing left and right frames A roof material type solar cell panel device comprising: a cover body having a portion. A drainage hole is formed in the horizontal portion of the H-shaped main body of the intermediate cover body, and the opposite end portions of the guide plate are near the center of the H-shaped main body so as to receive water dropped from the drainage hole. The roof material type solar cell panel device according to claim 1, wherein The crown portion of the intermediate cover body has a T-shaped cross section, extends upward from the central portion of the H-shaped main body, extends to the left and right, and extends to a position overlapping the upper surfaces of the opposing left and right frames. The roofing material type solar cell panel device according to claim 1 or 2. The left and right leg portions of the intermediate cover body have outer flange portions extending outwardly at the lower end portions, and the outer flange portions are sandwiched between the left and right frames and the guide plate. The roof material type solar cell panel device according to any one of claims 1 to 3, wherein:   The intermediate cover body is molded into a bar shape having the same cross-sectional shape over the entire length, has the same length as the left and right frames, and is closed by the ridge side blocking plate and the eaves side blocking plate, respectively, at the upper and lower ends of the roof gradient direction. The roof material type solar cell panel device according to any one of claims 1 to 4, wherein the roof material type solar cell panel device is provided. A flat plate-shaped photovoltaic power generation unit, and a ridge side frame, an eaves side frame, and a pair of left and right frames that hold an outer peripheral edge of the photovoltaic generation unit, the left and right frames being opposite to the photovoltaic generation unit A solar cell panel having a key-like portion formed in a key shape in cross section on the back side which is a side, with the opening facing downward along the longitudinal direction;
Provided for each solar cell panel, spread on the back side of the solar cell panel, mounted with the solar cell panel, and bent in an L-shaped cross section toward the upper side at both ends parallel to the roof gradient. A guide plate having a rising portion;
A guide plate fixture for supporting the guide plate from the roof surface;
A roof material type solar cell in which the solar cell panels are laid in a plurality of steps in a step-like manner so that ends thereof overlap each other in the roof gradient direction, and a plurality of the solar cell panels are laid in line in the direction orthogonal to the roof gradient. Used in panel devices,
The two solar cells provided between the two solar cell panels provided in the direction orthogonal to the roof gradient, having an H-shaped cross section and a U-shaped cross section provided on the upper side. The left and right leg portions are fitted into the key-like portions of the left and right frames of the panel from below, and the left and right leg portions straddle the rising portions of the two guide plates provided at the lower portion with the left and right leg portions having a U-shaped section. An H-shaped main body that makes the lower end of the guide plate abut against the bottom portion of the guide plate, and a crown shape that is provided so as to spread upward from a central portion of the H-shaped main body and closes an upper opening formed between the opposing left and right frames An intermediate cover body for a roof material type solar panel device, characterized by comprising:

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