JP5058402B2 - Solar power plant - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a solar power generation apparatus that is installed on a gantry provided on a flat roof, a folded-plate roof, the ground, and the ground to generate solar power.
[0002]
[Prior art]
A photovoltaic power generation apparatus that constructs a substantially saw-shaped roof covering a predetermined area on a substantially flat surface by arranging a plurality of solar cell modules in a slanting posture on a flat roof using a mount is disclosed in Japanese Patent Laid-Open No. 9-217471. In the solar power generation apparatus described in this publication, the plurality of solar cell modules are arranged with an inclination angle of several tens of degrees.
[0003]
However, in the configuration in which the solar cell module is installed at such a large inclination angle, the shadow of the solar cell module is greatly inserted into the light receiving surface of the solar cell module adjacent to this module even during the daytime when the solar radiation intensity is strong. The part does not generate electricity and the power generation efficiency decreases. Therefore, in order to improve the power generation efficiency of each solar cell module, adjacent solar cell modules must be sufficiently separated from each other so that shadows are not inserted as much as possible. Although the installation area required for installing the module increases, for example, the installation area on a flat roof or the like is limited. Therefore, in practice, the number of solar cell modules to be used must be limited.
[0004]
Further, in the configuration in which the solar cell modules are installed at a large inclination angle as described above, each solar cell module is easily subjected to wind pressure. Therefore, high strength is required for each solar cell module and the gantry supporting these modules, and the power generator Overall costs are high.
[0005]
Therefore, the present inventor placed the solar cell modules flat, that is, installed so that the solar cell modules are spread in a horizontal posture, so that each solar cell module is less susceptible to wind pressure and no shadow is inserted. We have found a solar power generation device that can improve power generation efficiency, but it has been found that there are points to be improved as follows.
[0006]
That is, in general, the solar cell module is configured by fitting a frame to the peripheral part of the module main body to form a frame. Therefore, in the flat state, the solar cell module is formed on the upper surface of the peripheral part of the module main body in each frame member of the frame. The covered upper end piece blocks rainwater, impedes drainage from the flat top surface of the solar cell module, and rainwater tends to remain along each frame member due to surface tension even after the weather recovers. Thereby, until the remaining rainwater is evaporated and separated by natural drying, the peripheral portion of the module main body is maintained in the same state as that immersed in water. For this reason, there is a possibility that the residual rainwater may enter the inside of the module body through a place where the sealing end face of the peripheral portion of the module body is weak and cause performance deterioration or failure. In addition, dirt components such as dust contained in the remaining rainwater are precipitated, and due to natural drying, the moisture components evaporate and the dirt components adhere to the light receiving surface of the module body, which may cause a decrease in power generation efficiency. Conceivable.
[0007]
[Problems to be solved by the invention]
The problem to be solved by the present invention is to obtain a solar power generation device that has good power generation efficiency and can improve durability.
[0008]
[Means for Solving the Problems]
  In order to solve the above-mentioned problems, the invention of claim 1 has a bottom wall for fixation and side walls bent from both side edges of the bottom wall and having different heights. The side wall of the lower height forms a first module fixing portion that is bent to the side, a plurality of screw holes are formed along the longitudinal direction of the first module fixing portion, and the height is low. The upper portion of the side wall forms a second module fixing portion formed from a base portion where the side wall of the higher height is bent to the side and a stopper edge bent upward from the tip of the base portion, A plurality of screw holes are formed along the longitudinal direction of the second module fixing portion, and the base portion and the first module fixing portion are inclined at an angle of 1 to 10 degrees, and are substantially flat. In a given area of the surface It comprises a plurality of extrusion-made rail-shaped frame which is fixed parallel to and the combined framework frame fitted to the periphery of the module body, the upper frame member of the frameLower end of the module bodyIn,A first mounting flange mounted on the first module fixing portion;Outward from the module bodyA lower frame member protruding from the frameLower end of the module bodyIn,A second mounting flange mounted on the base portion and contacting the stopper edge;Outward from the module bodyA plurality of screw through holes corresponding to the screw holes are provided in each of the first and second mounting flanges, and are installed at an inclination angle of 1 to 10 degrees across the adjacent mounts. A plurality of solar cell modules having drainage means provided in a lower frame member of the frame that is installed in the predetermined region and is located on the inclined lower end side, and threading of the first mounting flange. A module fixing screw that is screwed into a screw hole of the first module fixing portion through the hole and fixes the first mounting flange to the first module fixing portion; and threading of the second mounting flange. A module fixing screw that is screwed into a screw hole of the second module fixing portion through the hole and fixes the second mounting flange to the second module fixing portion, and the drainage A drainage gap provided between an end of the upper end piece that overlaps the upper surface of the module body of the lower frame member and an upper frame piece that overlaps the upper surface of the module body of the side frame member of the frame; And a drain hole provided at a lower end portion of the lower frame member and communicating with the gap through the inside of the lower frame member.
[0009]
  In the present invention and the following invention, the solar cell module has a photoelectric conversion layer made of a crystalline semiconductor layer such as single crystal, polycrystal, or microcrystal, an amorphous semiconductor layer such as amorphous silicon, or a compound semiconductor layer. A solar cell module can be used, and a tandem version of each module can also be used. In the present invention and the following inventions, weathering materials such as galvanized steel sheets, polyvinyl chloride coated steel sheets, pentite steel sheets, extruded materials of aluminum alloys, synthetic resins, etc. can be used for the frame and the frame. At the same time, the number of solar cell modules supported on the mount isIs optional. or,The present invention and the following invention can be applied to a photovoltaic power generation apparatus that is installed on a substantially flat roof, a folded-plate roof, a ground, and a gantry provided on the ground and that generates photovoltaic power.
[0010]
  In this invention, since each solar cell module is installed on a substantially flat surface at an inclination angle of 1 to 10 degrees, which is almost flat, over adjacent rail mounts, the shadow on the inclined upper end side of the solar cell module is shaded. Insertion into the light receiving surface of the adjacent solar cell module can be reduced, and accordingly, the distance between adjacent solar cell modules can be reduced. Moreover, since the solar cell module is inclined as described above, rainwater on the upper surface of the module body can be allowed to flow down and drained. Furthermore, in the present invention, although the lower frame material of the frame blocks rainwater, the lower frame material is provided with drainage means. Therefore, the blocked rainwater is passed through the drainage means. It can be discharged from the upper surface of the module body.In addition, regardless of the inclination of the solar cell module, the solar cell module is prevented from moving downward due to its own weight by the contact of the mounting flange of the lower frame member to the stopper edge of the module fixing portion. In this state, the solar cell module can be moved in the width direction, and the screw through hole of the mounting flange can be easily aligned with the screw hole of the module fixing portion.
  According to a second aspect of the present invention, in the first aspect, the upper frame member is mounted on the first module fixing portion together with the first mounting flange, and the lower frame member is the second frame member. The mounting flange is mounted on the second module fixing portion.
  Further, the invention of claim 3 is the invention according to claim 1 or 2, wherein a terminal box is arranged on the back surface of the module body of each of the solar cell modules so as to approach the upper frame member, and the taller side wall. Further, a groove forming portion for forming a cable receiving groove having an upper end opened between the side wall and the inner side of the frame, and a cable through hole for receiving the output cable drawn from the terminal box in the cable receiving groove And is provided.
  According to a fourth aspect of the present invention, in any one of the first to third aspects, the first and second modules are fixed by the module fixing screws so as to overlap the first and second module fixing portions. A pedestal cover provided to cover the pedestal positioned between the adjacent solar cell modules is provided.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to FIGS.
[0014]
As shown in FIGS. 1A and 1B, the flat roof building 1 includes a flat roof 2 having a substantially flat roof surface 2a. On this land roof 2, the solar power generation device 3 is installed so that the at least one part area | region, for example, the substantially whole region of the roof surface 2a, may be covered. By installing the power generation device 3, the flat roof 2 has a double roof structure, so that heating of the roof surface 2a by solar heat and noise coming indoors from the roof side can be reduced.
[0015]
The solar power generation device 3 is installed so as to be spread over almost the entire area of the flat roof 2 using the gantry 5 fixed to the roof surface 2a side, and 1 degree to 10 degrees, preferably 2 degrees. And a plurality of solar cell modules 6 inclined at -8 degrees, more preferably approximately 5 degrees. 2 and 3, θ represents the inclination angle of each solar cell module 6.
[0016]
A plurality of rails are used for the gantry 5 made of an extruded material made of aluminum alloy. As shown in FIG. 3, these rail-like mounts 5 are formed by bending side walls 11 and 12 having different heights from both side edges of the bottom wall 13 in order to obtain the inclination angle θ, and forming the side wall 11 having a higher height. A groove forming portion 15 having an L-shaped cross section for forming a cable receiving groove 14 whose upper end is opened between the wall 11 and the wall 11 is integrally provided, and a cable through hole 16 communicating with the cable receiving groove 14 is opened. ing. The groove forming portion 15 can also be integrally provided on the wall surface opposite to the wall surface shown in FIG. 3, and in this case, the cable through hole 16 can be omitted. Further, the groove forming portion 15 formed separately from the side wall 11 may be attached to the side wall 11 by screwing or the like.
[0017]
  The upper part of the side wall 11 with the higher height is a module fixing portion that is bent upward at the side wall 12 with the lower height and faces the upper side of the cable housing groove 14.(First module fixing part)11a, and the fixed portion 11a is inclined at the angle θ. The upper part of the side wall 12 is a module fixing part in which the side wall 11 is bent.(Second module fixing part)12a. The fixed portion 12a is formed by a base 12a1 inclined at the angle θ and a stopper edge 12a2 bent upward from the tip. A plurality of screw holes (not shown) are formed in the module fixing portions 11a and 12a along the longitudinal direction.
[0018]
For example, in order to obtain an inclination angle θ of 5 degrees, the height of the side wall 11 indicated by A in FIG. 3 is set to 90 mm, and the height of the side wall 12 indicated by B is set to 10 mm. Under this condition, the width C of the bottom wall 13 is 100 mm, and the horizontal distance between the tips of the module fixing portions 11a and 12a of the side walls 11 and 12, that is, the separation distance D between adjacent solar cell modules 6 is 50 mm. It is desirable to do.
[0019]
As shown in FIG. 2, the gantry 5 having the above structure is fixed to the roof surface 2a in parallel with each other. For this fixing, for example, a cushion material 17 such as a rubber plate is sandwiched between the roof surface 2a and the bottom wall 13 and is attached to the roof surface 2a at a predetermined interval so as to penetrate the cushion material 17 and the bottom wall 13 upward. The fixing nut 19 is screwed to each anchor bolt 18 and tightened. In FIG. 3, reference numeral 20 denotes a locking washer. The above is the case where the anchor bolt 18 is directly projected on the roof surface 2a. However, when the block with the anchor bolt 18 projecting on the upper surface is fixed on the roof surface 2a, the roof is passed through this block. Each mount 5 is fixed on the surface 2a as described above.
[0020]
As shown in FIG. 4, the solar cell module 6 is formed by attaching a frame 31 to the periphery of a rectangular module body 30 and attaching a terminal box 32 to the back surface of the module body 30. The terminal box 32 is arranged with an upper side frame member 33 to be described later.
[0021]
  The frame 31 includes an upper frame member 33 fitted and attached to the upper edge of the module body 30, a lower frame member 34 fitted and attached to the lower edge of the module body 30, and the left and right sides of the module body 30. The left and right side frame members 35 and 36 which are individually fitted and attached to the side edges on both sides are connected to each other by screws 37 and 38 to form a frame. Each of the frame members 33 to 36 is made of an extruded material of an aluminum alloy. In FIG. 3, reference numeral 39 denotes a gasket fitted around the periphery of the module main body 30, and the module main body 30 is fitted to the frame 31 through this gasket. The lower end of the upper frame member 33 has a mounting flange protruding outward.(First mounting flange)Mounting flange 33f is provided integrally, and similarly projects to the lower end of the lower frame member 34.(Second mounting flange)34f is provided integrally. Each of the mounting flanges 33f and 34f is provided with a plurality of screw through holes 33g as shown in FIG. These screw through holes 33g are provided corresponding to the screw holes of the module fixing portions 11a and 12a, respectively.
[0022]
The upper screw 37 is inserted into the inner surface of the side frame members 35 and 36 through the upper frame member 33 from the outer surface thereof, and is screwed into a tapping hole (not shown) formed integrally with the upper frame member 35, 36. 33 and the left and right side frame members 35 and 36 are connected. The lower screw 38 is provided by inserting the lower frame member 34 from the outer surface thereof and screwing it into the tapping holes (not shown) of the side frame members 35, 36, and the lower frame member 34 and the left and right side frame members 35, 36 is connected. In FIG. 3, 33 a and 34 a are module supporting convex portions such as tapping holes provided inside the upper and lower frame members 33 and 34, respectively, and the gasket 39 fitted on the peripheral portion of the module main body 30. Is abutted.
[0023]
  In the frame 31 framed as described above, both ends of the upper end piece that overlaps the upper surface of the lower edge portion of the module main body 30 of the lower frame member 34 are notched as shown in FIG. A gap 40 for drainage is provided between the notches 34b and the end portions 35b and 36b of the upper and lower side frame members 35 and 36 that overlap the upper surface of the lower edge portion of the module main body 30. Yes. By forming these gaps 40, when the frame 31 is assembled to the peripheral portion of the module body 30, the notches 34b and the end portions 35b and 36b are prevented from interfering with each other,Frame 31Can be easily assembled. This point is similarly implemented in the relationship between the upper frame member 33 and the left and right side frame members 35 and 36 as shown in FIG.
[0024]
As shown in FIGS. 3 and 4 (D), the lower frame member 34 is provided with a drain hole 41 located at the lower end thereof and communicating with the gap 40. The gap 40 and the drain hole 41 constitute a drain means. Therefore, according to this configuration, in the state where the solar cell module 6 is installed on the roof surface 2a in accordance with the inclination as described later, a portion overlapping the upper surface of the lower edge portion of the module body 30 in the lower frame member 34. Since rainwater blocked by the water can be smoothly guided into the lower frame member 34 through the left and right gaps 40 and discharged to the outside through the drain holes 41, the rainwater flowing down on the module main body 30 is the main body 30. It is possible to prevent the water from remaining on the lower edge side for many hours. It should be noted that one or more notches 34b for forming a drainage portion in a part of the upper end piece of the lower frame member 34 can be provided in the middle portion in the longitudinal direction of the upper end piece.
[0025]
The module main body 30 is formed by providing a thin film solar cell on the back surface of a rectangular transparent glass substrate and sealing the battery from the back surface side with a sealing material. The solar cell is formed by forming a transparent electrode layer on the back surface of the transparent glass substrate and separating it into a plurality of photovoltaic regions, and then forming a photovoltaic thin film semiconductor layer such as amorphous silicon on the transparent electrode layer. A photovoltaic device formed by dividing this semiconductor layer into a plurality of regions is electrically connected in series by a back electrode layer formed on these devices, and power is collected as an end of the connection. It has a pair of bus areas and is formed by soldering bus bars as electrodes to both bus areas individually. Both bus bars are individually soldered with one end portion of an output lead-out line, and these lead-out lines are connected to the terminal box 32 through the sealing material. In addition, two positive and negative array output cables are connected to the terminal box 32, and the electric power generated in the module body 30 is drawn to the outside via other electric wires connected to these cables. Yes.
[0026]
The solar cell modules 6 having the above-described configuration are installed over the adjacent bases 5 by the following procedure using the bases 5 already fixed to the anchor bolts 18 on the roof surface 2a.
[0027]
First, the lower frame member 34 is mounted together with the mounting flange 34f on the lower module fixing portion 12a of one of the adjacent mounts 5, and the upper frame member is mounted on the higher module fixing portion 11a of the other mount 5. 33 is mounted together with its mounting flange 33f, and the solar cell module 6 is placed at an inclination angle θ of 5 degrees over the adjacent gantry 5.
[0028]
  In this case, regardless of the inclination of the solar cell module 6, the solar cell module 6 is prevented from moving obliquely downward by its own weight due to the contact of the mounting flange 34f with the stopper edge 12a2 of the module fixing portion 12a. In this state, the solar cell module 6 is moved in the width direction, and the screw holes of the both module fixing portions 11a and 12a are moved.Mounting flange 33f, 34fThe screw through hole 33g can be easily aligned.
[0029]
Next, in this state, the module fixing screw 42 is screwed and fixed to each screw hole of the module fixing portion 11a of the mount 5 through the screw through hole 33g of the mounting flange 33f, and the screw through hole 33g of the mounting flange 34f. The module fixing screw 43 is screwed into each screw hole of the module fixing portion 12a of the gantry 5 and fixed. Thereby, the solar cell module 6 is installed at an inclination angle θ close to a flat state over both the upper and lower edges of the frame 5 adjacent to each other. Then, by performing such installation work on the required number of solar cell modules 6 one after another, the solar cell modules 6 adjacent to the left and right are arranged in a state where the side frame members 35 and 36 are in contact with each other. Thus, the solar cell module 6 is installed over almost the entire area of the roof surface 2a, and a double roof is constructed.
[0030]
In this installation operation, the output cable 32 a drawn from the terminal box 32 is passed through the cable through hole 16 of the gantry 5 and received in the cable receiving groove 14, and the other solar cell module 6 is stored in the groove 14. Are connected in series or in parallel with the output cable 32a drawn from the terminal box 32, or connected to the cable drawn into the room. Thus, by processing the output cable 32a drawn out from the terminal box 32 on the inclined upper end side of the solar cell module 6 at the upper part of the gantry 5, the output cable 32a is formed in the water temporarily accumulated on the roof surface 2a during rain. It is possible to prevent the problem of electrical insulation from being immersed, and the weight of the output cable 32a acting on the terminal box 32 can be reduced.
[0031]
In this embodiment, the gantry cover 44 is attached simultaneously with screwing of the solar cell module 6 in the installation work. The cover 44 is formed of a weather-resistant material similar to that of the gantry 5, for example, a metal such as a galvanized steel plate, a polyvinyl chloride coated steel plate, a pentite steel plate, an extruded material of an aluminum alloy, or a synthetic resin, It has the same length as the gantry 5 and has a width over the module fixing portions 11a and 12a of the side walls 11 and 12 of the gantry 5, and a plurality of side edges that overlap the module fixing portions 11a and 12a Screw holes (not shown) are opened.
[0032]
The gantry cover 44 is arranged so that the screw holes thereof communicate with the screw holes formed in the module fixing portions 11a and 12a, respectively, and are fastened together with the module fixing screws 42 and 43. Covering the gantry 5 located between the adjacent solar cell modules 6, the solar cell module 6 is attached over the adjacent solar cell modules 6. By attaching the cover 44, it is possible to prevent the output cable 32a and the like wired in the cable housing groove 14 from being directly exposed to wind and rain.
[0033]
  As described above, by installing the solar power generation device 3 on the flat roof 2 via the mount 5, each solar cell module 6 that performs solar power generation can be installed at an inclination angle of 5 degrees. For this reason, the inclined upper portion of the solar cell module 6 on the left side in FIG.Shadow madeHowever, the insertion into the light receiving surface of the solar cell module 6 adjacent to the right side of the module 6 can be reduced, and the decrease in power generation efficiency of each solar cell module 6 can be reduced.
[0034]
Moreover, since the tilt angle is 1 to 10 degrees, which is almost flat, the time when the shadow is inserted is limited to the morning or evening. However, since the solar radiation intensity is weak at this time, the substantial power generation capacity is not affected so much and during the daytime when the solar radiation intensity is high, any solar cell module 6 is shaded by the adjacent solar cell module 6. Never plug it in. In addition, when the inclination angle of the solar cell module 6 exceeds 10 degrees, the insertion area of the shadow into the adjacent module 6 increases, which is not practically preferable.
[0035]
Then, as the number of shadows inserted is small as described above, the distance D between adjacent solar cell modules 6 can be reduced (in the illustrated example, as short as about 50 mm), thereby A large number of solar cell modules 6 can be secured. Therefore, the power generation efficiency of the entire solar power generation device 3 can be improved.
[0036]
Further, as described above, although each solar cell module 6 is installed in a substantially flat posture, it is slightly tilted at the tilt angle θ. The rainwater on the top can be drained to drain. Therefore, it is possible to reduce the rainwater from being blocked and left around the periphery of the module main body 30 by the frame members 33 to 36 of the frame 31. In addition, when the inclination angle θ of the solar cell module 6 is less than 1 degree, there is an increasing tendency that the drainage performance for flowing rainwater is not obtained due to variations in the flatness of the roof surface 2a. Not preferable.
[0037]
In addition, since the lower frame member 34 arranged on the inclined lower end side is provided with drainage means including the drainage gap 40 and the drainage hole 41 communicating with the lower frame member 34 as described above, Rainwater that is blocked by the portion of the material 34 that overlaps the upper surface of the lower edge of the module body 30 can be guided into the lower frame member 34 through the left and right gaps 40, and can be discharged to the outside through the drain holes 41.
[0038]
For the reasons described above, it is possible to prevent rainwater from remaining on the periphery of the module body 30 due to surface tension even after the weather recovers, resulting in a state similar to that in which the periphery of the module body 30 is immersed in water.
[0039]
Therefore, the possibility that residual rainwater enters the inside of the module main body 30 through the weakened adhesive force of the sealing end surface of the peripheral portion of the module main body 30 to eliminate performance deterioration and failure. Accordingly, the durability of the solar cell module 6 and the solar power generation device 3 including the solar cell module 6 can be improved. Further, dirt components such as dust contained in the residual rainwater can be prevented from depositing on the light receiving surface of the module main body 30, thereby preventing a decrease in power generation efficiency.
[0040]
Further, as described above, each solar cell module 6 is installed on the roof surface 2a in a substantially flat posture, so that these solar cell modules 6 are difficult to receive wind pressure such as cross wind. For this reason, each solar cell module 6 and the gantry 5 that supports these modules need not have a particularly high strength, and the overall height of the gantry 5 can be reduced, so that the cost of the gantry 5 can be reduced. The cost of the entire power generation device 3 can also be reduced. In addition, in this embodiment, although the some mount 5 was installed mutually independently, these adjacent mounts 5 can also be connected via a connection member.
[0041]
Furthermore, in this embodiment, not only the mounting flanges 33f and 34f of the frame 31 of the solar cell module 6, but also the upper and lower frame members 33 and 34 having these are placed on the gantry 5 so that each solar cell module 6 Therefore, the solar cell module 6 on which the wind pressure acts is not supported only by the mounting flanges 33f and 34f. Therefore, the solar cell module 6 can be firmly installed on the gantry 5.
[0042]
【The invention's effect】
According to the first aspect of the present invention, not only the insertion of shadows of adjacent solar cell modules is reduced, but also a larger number of solar cell modules are installed on a substantially flat surface by reducing the distance between adjacent solar cell modules. As a result, the power generation efficiency can be improved, and the rainwater on the top surface of the module body is allowed to flow down, so that the periphery of the module body is less exposed to rainwater remaining on the top surface of the module body. It is possible to provide a solar power generation device that can be improved and can prevent a decrease in power generation efficiency due to deposition of dirt on the light receiving surface.
[0043]
According to the second aspect of the present invention, rainwater blocked by the lower frame member of the frame can be discharged from the upper surface of the module main body, so that the durability of each solar cell module can be further improved.
[Brief description of the drawings]
FIG. 1A is a schematic side view of a flat roof building in which a photovoltaic power generation apparatus according to an embodiment of the present invention is installed. (B) is a schematic plan view of the flat roof building of FIG.
FIG. 2 is a perspective view showing a part of the photovoltaic power generator according to one embodiment.
FIG. 3 is an enlarged cross-sectional view illustrating a configuration of a main part of a solar power generation device according to an embodiment.
FIG. 4A is a plan view of a solar cell module of a solar power generation device according to an embodiment.
FIG. 4B is a top view from the direction of arrow Z in FIG.
(C) is the side view of the upper end part seen from the arrow YY direction in FIG. 4 (A).
FIG. 4D is a bottom view from the arrow X direction in FIG.
(E) is the side view of the lower end part seen from the arrow WW direction in FIG. 4 (A).
[Explanation of symbols]
  1 ... a flat roof building
  2 ... a flat roof
  2a ... Roof surface of flat roof
  3… Solar power generator
  5 ... Stand
  6 ... Solar cell module
  11 ... of the frameThe tall oneSide wall
  12 ... of the frameThe shorter oneSide wall
  11a Module fixing part (first module fixing part)
  12a ... Module fixing part (second module fixing part)
12a1 ... Base
12a2 ... Stopper edge
13 ... Bottom wall
14 ... Cable receiving groove
15 ... Groove component
16 ... Cable hole
  30 ... Module body
  31 ... Frame
32 ... Terminal box
32a ... Output cable
  33 ... Upper frame material of the frame
  34 ... Lower frame material of the frame
  33f... Mounting flange (first mounting flange)
34f ... Mounting flange (second mounting flange)
  35, 36 ... Left and right side frame members of the frame
  40 ... Drainage (drainage means)
  41 ... Drain hole (drainage means)
  42, 43 ... Module fixing screw
44 ... Cover

Claims (4)

A first module having a fixing bottom wall and side walls bent from both side edges of the bottom wall and having different heights, and the upper part of the taller side wall is bent at the side wall of the lower side. A fixing portion is formed, and a plurality of screw holes are formed along the longitudinal direction of the first module fixing portion, and an upper portion of the side wall having the lower height is the side wall having the higher height. A second module fixing portion formed of a base portion bent into a crocodile and a stopper edge bent upward from the tip of the base portion, and a plurality of the module fixing portions along the longitudinal direction of the second module fixing portion; A plurality of screw holes are formed, and the base part and the first module fixing part are inclined at an angle of 1 to 10 degrees and fixed in parallel to a predetermined area of a substantially flat surface. Extruded rail And stand,
A combined framework frame fitted to the periphery of the module body, the lower end spaced below the module body of the upper frame member of the frame, first is placed on the fixed portion first module 1 the mounting flange is projected outwardly away from the module main body, a lower end spaced below the module body of the lower frame member of the frame, the stopper edge while being placed on the base portion equivalent A second mounting flange in contact with the module body projects outwardly from the module body, and a plurality of screw through holes corresponding to the screw holes are provided in each of the first and second mounting flanges. It is installed on the lower frame member of the frame that is installed at the predetermined area by being installed at the inclination angle of 1 degree to 10 degrees over the gantry and is located on the lower end side of the inclination. A plurality of solar cell modules having drainage means,
A module fixing screw that is screwed into a screw hole of the first module fixing portion through a screw hole of the first mounting flange, and fixes the first mounting flange to the first module fixing portion;
A module fixing screw that is screwed into a screw hole of the second module fixing portion through a screw hole of the second mounting flange, and fixes the second mounting flange to the second module fixing portion;
Comprising
The drainage means is for drainage provided between the end of the upper end piece that overlaps the upper surface of the module body of the lower frame member and the upper frame piece that overlaps the upper surface of the module body of the side frame member of the frame. A solar power generation device comprising a gap and a drain hole provided at a lower end portion of the lower frame member and communicating with the gap via the inside of the lower frame member.   The upper frame member is mounted on the first module fixing portion together with the first mounting flange, and the lower frame member is mounted on the second module fixing portion together with the second mounting flange. The solar power generation device according to claim 1, wherein the solar power generation device is provided.   A terminal box is arranged near the upper frame member on the back surface of the module body of each solar cell module, and a cable housing groove having an upper end opened between the side wall and the side wall of the higher height. The groove forming part formed inside the said gantry, and the cable through-hole for accommodating the output cable pulled out from the said terminal box in the said cable accommodation groove | channel are provided. The solar power generation device described in 1.   The first and second module fixing portions are overlapped with the first and second module fixing portions with the module fixing screws so as to cover the frame positioned between the adjacent solar cell modules. The photovoltaic power generator according to any one of claims 1 to 3, further comprising a mount cover provided.

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