JP2010059753A - Roofing material-type solar battery panel device and eaves-side end fixing implement for the same - 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 the leakage of rainwater from a portion joined to an eaves-side roofing material. <P>SOLUTION: An eaves-side end fixing implement 26 comprises a leg portion 26A which is erected on a roof surface 19, and an upper placement portion 26B, which extends substantially in parallel with the roof surface 19 in an eaves-side direction from an upper portion of the leg portion 26A; an eaves-side end of the solar battery panel 1, which is laid on the lowermost step in the direction of the pitch of a roof, is supported on the top surface of the upper placement portion 26B; and the lift of the ridge-side end of the eaves-side roofing material 29 adjacent to the eaves-side is regulated by the undersurface of the upper placement portion 26B. A third inclined portion 26a is formed on the upper placement portion 26B. The third inclined portion 26a is similar in shape to a first inclined portion 12a, which forms an eaves-side opening; and an eaves-side end of a guide plate 12 of the solar battery panel 1, which is laid on the lowermost step in the direction of the pitch of the roof, and the upper placement portion 26B of the eaves side end fixing implement 26 overlap each other in a state of adhering tightly to each other. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a roof material type solar cell panel device in which a plurality of steps are laid in a stepwise manner in the roof gradient direction so that the solar cell panels overlap with each other along with the roof material adjacent to the eaves side, and the roof material type The present invention relates to an eaves-side end fixture that is used in a solar cell panel device and supports an eaves-side end of a solar cell panel that is laid at the lowest stage in the roof gradient direction.

  In the roof type solar cell panel apparatus in which the solar cell panels are laid in a plurality of steps in a stepwise manner in the roof gradient direction so that the end portions overlap with the roof material adjacent to the eaves side, While providing a vent on the eave side of the 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. In addition, the joint between the solar cell panel and the roof material adjacent to the roof gradient direction, in particular, the solar cell panel laid at the bottom of the roof gradient direction and the eave side roof material adjacent to the eave side of the solar cell panel. In some areas, countermeasures have been desired against water leakage to the roof surface caused by rainwater blowing.

  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.

  Furthermore, conventionally, in a roof material type solar cell panel device having solar cell panels laid in a stepped manner in the roof gradient direction as described above, the solar cell panel and the roof material adjacent to the roof gradient direction are joined. In particular, regarding the support structure of the solar cell panel laid at the bottom of the roof gradient direction and the support structure of the eaves side roof material adjacent to the eave side of the solar panel laid at the bottom, Therefore, it has been desired to reduce costs and improve workability when laying.

  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 in a large amount when it flows to the lower stage, and the structure of the junction with the roofing material adjacent to the roof gradient direction. A roof material type solar cell panel device that can be simplified, and an eave side end that is used in the roof material type solar cell panel device and supports an eave side end portion of a solar cell panel laid at the lowest stage in the roof gradient direction. The purpose is to obtain a fixture.

  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 configured so that the solar cell panels overlap each other with the roof material adjacent to the eaves side. In the roof material type solar cell panel device laid in a plurality of steps in a stepwise manner in the roof gradient direction, a flat plate-like solar cell panel is provided for each solar cell panel, and spreads on the back side of the solar cell panel. The battery panel is placed and bent at the bottom forming the first ventilation path along the back surface of the solar cell panel, and the ridge side of the bottom is folded into a U-shaped cross section so as to surround the ridge side edge of the solar cell panel A bottom portion of a guide plate adjacent to the ridge side on the upper surface of the fold portion, having a folded portion that forms a second ventilation path that follows the first ventilation path around the ridge side edge of the solar cell panel Solar panel mounted on top of the eaves side In addition, in the overlapped portion that is laid in a plurality of steps in the roof slope direction and overlapped, a first unevenness is formed at the eaves side end of the bottom, and the first unevenness is between the solar cell panel and the first unevenness. An eaves-side opening communicating with the ventilation path is formed, and a second unevenness is formed at the eaves-side end of the upper surface of the folded portion, and this second unevenness is formed between the solar cell panel and the second ventilation path. A guide plate that forms a ridge-side opening that communicates, a guide plate fixture that supports the guide plate from the roof surface, a leg erected on the roof surface, and a roof surface in the eave side direction from the top of the leg portion It has an upper mounting part that extends approximately in parallel, and supports the eaves-side end of the solar panel laid on the upper surface of the upper mounting part at the bottom of the roof gradient direction, and the eave side on the lower surface of the upper mounting part Eaves-side end fixture, which regulates the lifting of the ridge-side end of the eave-side roofing material adjacent to A third unevenness is formed on the upper mounting portion, and the third unevenness and the first unevenness have the same shape, and the eaves side of the guide plate of the solar cell panel laid at the lowest step in the roof gradient direction The end portion and the upper placement portion of the eaves-side end fixture are closely attached and overlapped.

  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.

  The eaves-side end fixture has a leg portion erected on the roof surface, and an upper placement portion that extends substantially parallel to the roof surface in the eave-side direction from the upper portion of the leg portion, and an upper surface of the upper placement portion. In addition to supporting the eaves side end of the solar cell panel laid on the lowermost stage in the roof gradient direction, the lifting of the ridge side end of the eaves side roofing material adjacent to the eave side on the lower surface of the upper mounting part is regulated, Furthermore, the third unevenness is formed on the upper mounting portion of the eaves-side end fixture, and the third unevenness and the first unevenness have the same shape, and the sun is laid on the lowest step in the roof gradient direction. Since the eaves side end of the battery panel guide plate and the upper placement part of the eaves side end fixture are in close contact with each other, it is possible to support the lowermost solar cell panel and fix the eaves side roofing material with one member. The structure of the joint can be simplified, and rainwater can be submerged from the joint between the lowermost solar panel and the eaves side roofing material. It is possible to prevent.

  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 FF 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.

  In the state where the solar cell panel 1 is placed, the guide plate 12 overlaps the eaves side end portion of the bottom portion 12A of the other guide plate 12 adjacent to the ridge side on the upper surface of the folded-back portion 12B and the roof gradient. It is laid in multiple steps in the 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 cross-sectional view showing a state in which the solar cell panel at the lowest stage in the roof gradient direction is laid in a staircase shape with the eaves side end overlapped on the eaves side roofing material adjacent to the eaves. FIG. 11 is an enlarged cross-sectional view showing a state in which the solar cell panel at the lowest stage in the roof gradient direction shown in FIG. In FIG. 10, with respect to the structure of the roof eaves, a single roofing material (hereinafter referred to as eaves-side roofing material) 29 is laid on the eaves, followed by a plurality of steps so that the plurality of solar battery panels 1 climb the roof slope. It is laid. Note that the eaves-side roof material 29 is generally a tile. In other words, the solar cell panel 1 laid in a plurality of steps in a stepwise direction in the roof gradient direction overlaps the end of the lowermost solar cell panel 1 with the eaves-side roof material 29 adjacent to the eaves side, thereby eaves-side roof material 29. Is also laid in a staircase shape.

  The eaves-side roofing material 29 is placed on the eaves 22 provided at the eaves edge, and is wound with the upper cross-section L-shaped part engaged with the roof tile 21. An eaves-side end fixture 26 is provided between the lowermost solar cell panel 1 and the eaves-side roof material 29.

  The eaves side end fixture 26 extends along the eaves side frame 4 of the solar cell panel 1 and has substantially the same length as the eaves side frame 4. That is, the eaves-side end fixture 26 extends over the entire length of the long side of the solar cell panel 1. The eaves side end fixture 26 is molded into a substantially Z-shaped cross section, and has a leg portion 26A standing on the roof surface 19, and an upper placement portion that is bent from the upper end of the leg portion 26A and extends substantially parallel to the roof surface 19. 26B. The leg portion 26A is erected on the roof surface 19 on one side and fixed to the roof surface 19 with a fixing screw 15a on the other side. The fixing screw 15 a passes through the waterproof sheet 16 and the field plate 17 and is fastened to the rafter 18. The eaves-side end fixture 26 supports the lowermost solar cell panel 1 by placing the eaves-side end of the guide plate 12 on the upper placement portion 26B. Furthermore, the eaves-side end fixture 26 regulates the elevating of the eaves-side roof material 29 by bringing the lower surface of the upper placement portion 26 </ b> B into contact with the eaves-side roof material 29.

  The eaves side of the upper placement portion 26B is bent upward in an L-shaped cross section to form a fastening and fixing portion 26e. A screw hole is drilled in the fastening and fixing portion 26e, 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.

  As with the folded portion 12B of the guide plate 12, the upper mounting portion 26B of the eaves side end fixture 26 has a third inclined portion 26a (second inclined portion 12b of the folded portion 12B) as the third unevenness. And a third flat surface portion 26d (corresponding to the second flat surface portion 12d of the folded portion 12B). And the 3rd inclination part 26a formed in the eaves side edge fixing tool 26 and the 1st inclination part 12a of the guide plate 12 have comprised the same shape, When both are piled up, both are surrounding. It adheres together with the flat part.

  Further, an elastic sealing member (first sealing material) that is a plate-like rubber is provided between the third inclined portion 26a and the third flat surface portion 26d of the eaves side end fixture 26 and the eaves side roof material 29. ) 24 is provided. The elastic seal member 24 absorbs irregularities formed in the upper placement portion 26B of the eaves side end fixture 26 and stably supports the eaves side roof material 29, and also the eaves side end fixture 26 and the eaves side roof. The space between the material 29 is sealed. By the action of the elastic seal member 24, an effect of suppressing water infiltration from the mating surface between the eaves-side end fixture 26 and the eaves-side roof material 29 can be expected, and unexpected water leakage can be suppressed.

  FIG. 12 is a cross-sectional view showing a state in which the solar cell panel at the uppermost stage in the gradient direction of the roof is laid in a staircase shape with the ridge side end overlapped on the ridge side roofing material adjacent to the ridge side. The eaves side end of the ridge side roofing material 20 adjacent to the ridge side is placed on the folded portion 12B of the guide plate 12 of the solar cell panel 1 laid on the uppermost stage in the roof gradient direction. The ridge-side roofing material 20 is wound with the upper cross-section L-shaped portion engaged with the tile crossing 23. Another roof material 20B is laid on the ridge side of the ridge side roof material 20. An elastic seal member (second seal material) 25 that is a plate-like rubber is provided between the folded-back portion 12B of the guide plate 12 of the solar cell panel 1 laid on the uppermost stage and the ridge-side roof material 20. ing. The elastic seal member 25 absorbs irregularities formed in the folded portion 12B and stably supports the ridge-side roof material 20 on the folded portion 12B, and seals between the folded portion 12B and the ridge-side roof material 20. To do. By the action of the elastic seal member 25, an effect of suppressing water infiltration from the mating surface between the folded portion 12B and the ridge-side roof material 20 can be expected, and unexpected water leakage can be suppressed.

  As described above, the roof type solar cell panel device according to the present invention is laid in a plurality of steps in a stepwise manner in the roof gradient direction so that the solar cell panels overlap with each other the roof materials adjacent to the eaves side. 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 sectional drawing which shows a mode that the solar cell panel of the lowermost stage of a roof gradient direction was laid in steps by overlapping the eaves side edge on the eaves side roofing material adjacent to the eaves side. It is an expanded sectional view which shows a mode that the eaves side edge is piled up and laminated | stacked on the eaves side roof material which adjoins the eaves side the solar cell panel of the roof gradient direction lowest stage shown in FIG. It is sectional drawing which shows a mode that the solar cell panel of the uppermost stage of the roof gradient direction was laid in steps by overlapping the ridge side end on the ridge side roof material adjacent to the ridge side.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Solar cell panel 2 Base | substrate 2a Solar cell 3 Frame body 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 5 Building side frame 5c Inside Flange 5d Building side frame opening groove 6 Left and right frame 8 Fixing piece (screw mounting member)
12 Guide plate 12A Bottom portion 12B Turn-up portion 12a First inclined portion (eave side)
12b 2nd slope (ridge side)
12c First flat part (eave side)
12d Second plane (building side)
12e First fixed claw 12g Rising portion 12h Second fixed claw 12j Inclined tip bending portion 13 Fixing screw 14 Guide plate fixture 15 Holding metal 15a Fixing screw 16 Waterproof sheet 17 Base plate 18 Rafter 19 Roof surface 20 Roof material Side roofing material)
20B Other roof materials 21 and 23 Tile rails 22 Hiroko Mai 24 Elastic seal member (first seal material)
25 Elastic seal member (second seal material)
26 eaves side edge fixing tool 26A leg part 26B upper mounting part 26e fastening fixing part 29 roof material (eave side roof material)

Claims (6)

In the roof type solar cell panel device in which the solar cell panels are laid in a plurality of steps in a stepwise manner in the roof gradient direction so that the end portions overlap with the roof material adjacent to the eaves side,
A flat plate-like solar cell panel;
A bottom portion that is provided for each solar cell panel, spreads on the back side of the solar cell panel, places the solar cell panel, and forms a first ventilation path along the back surface of the solar cell panel, and the bottom portion The second ridge side of the solar cell panel is folded in a U-shape so as to surround the ridge side edge of the solar cell panel, and the second continuation of the solar cell panel around the ridge side edge of the solar cell panel follows the first ventilation path. In the roof gradient direction with the solar cell panel that has a folded portion that forms a ventilation path, and is placed on the upper surface of the folded portion with the eaves side end of the bottom of another guide plate adjacent to the ridge side. In the overlapping portion that is laid in a plurality of stages and overlapped, first eaves and convexes are formed at the eaves side end of the bottom, and the first air flow is formed between the first ventilation and the solar cell panel. An eaves-side opening communicating with the road is formed, and the folding A guide plate that forms second ridges on the eaves side end of the top surface of the ridge, and that forms a ridge-side opening that communicates with the second air passage between the second ridges and the solar cell panel. When,
A guide plate fixture for supporting the guide plate from the roof surface;
A leg portion erected on the roof surface, and an upper placement portion extending substantially parallel to the roof surface from the upper portion of the leg portion to the eaves side direction; An eaves-side end fixture that supports the eaves-side end of the solar panel that is laid and regulates the lifting of the ridge-side end of the eaves-side roofing material that is adjacent to the eaves on the lower surface of the upper mounting portion; With
A third unevenness is formed on the upper mounting portion of the eaves-side end fixture, and the third unevenness and the first unevenness form the same shape, and are laid at the lowest step in the roof gradient direction. Furthermore, the eaves side end part of the guide plate of the solar cell panel and the upper placement part of the eaves side end fixture are in close contact with each other.   The second unevenness and the first unevenness have the same shape, and the second unevenness and the first unevenness of the other guide plate adjacent to the ridge side are at the overlapping portion. The roofing material according to claim 1, wherein the roofing material is provided in a position where the ridge side opening and the eaves side opening of another guide plate adjacent to the ridge side are adjacent to each other and are adjacent to each other. Type solar panel device. The eaves-side end fixture has an eaves-side end of the solar cell panel that is formed by bending an eave-side side of the upper mounting portion upward in an L-shaped cross section and is laid at the lowest step in the roof gradient direction. The roof material type solar cell panel device according to claim 1, further comprising a fastening portion to be fastened. 4. The apparatus according to claim 1, further comprising a first seal member provided between a lower surface of the upper mounting portion of the eaves-side end fixture and the eaves-side roof material. The roof material type solar cell panel device according to 1. The apparatus further comprises a second sealing material provided between the folded portion of the guide plate of the solar cell panel laid on the uppermost stage in the roof gradient direction and the ridge-side roof material. To 4. The roofing material type solar cell panel device according to any one of items 1 to 4. The solar cell panel is used for a roof material type solar cell panel device that is laid in a plurality of steps in a stepwise manner in the roof gradient direction so that the ends overlap each other with the roof material adjacent to the eaves side,
A leg portion erected on the roof surface; and an upper placement portion extending substantially parallel to the roof surface from the upper portion of the leg portion toward the eaves side, and the lowest step in the roof gradient direction on the upper surface of the upper placement portion The eaves side end of the solar cell panel laid on the eaves side is supported, and the lifting of the ridge side end of the eaves side roofing material adjacent to the eaves side on the lower surface of the upper mounting part is regulated. Eave side end fixture for roof type solar panel device.

Images