JPH0996071A - Fitting structure of solar battery module - Google Patents

Abstract

PROBLEM TO BE SOLVED: To parallelly arrange solar battery modules without gaps and preferably use in a snowfall area without troubles resulting from accumulation of snow. SOLUTION: The four sides of a solar battery assembly 5 formed as a rectangular plate are supported by side frames 6 for the longer sides and side frames 7 for the shorter sides. Fixing ribs to respective bases 18 of side frames 6, 7 for the longer and shorter sides are provided. A pair of locating screws 22 are fitted to the base 18 installed on a roof. The end edge of the fixing rib in the side frames 6, 7 of longer and shorter side frames are positioned to contact both locating screws 22. A wiring cover 24 is positioned between adjacent solar battery modules M and fitted thereto. A rising part for regulating the distance between the modules is provided in the wiring cover to keep the distance between the modules M. The gap between adjacent solar battery modules M is filled with a cover 25 between the modules, having nearly the same height with the module surface.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a solar cell module mounting structure used in a solar power generation system.

[0002]

2. Description of the Related Art Most of the solar cell modules that make up a photovoltaic power generation system employ a structure called a super straight system, and FIG. 13 shows its external appearance.
FIG. 14 shows a partial cross sectional structure thereof.

In a conventional superstrate type solar cell module M, a solar cell array 1 in which a large number of solar cells are connected in series or in parallel by an interconnector or the like has a filler 2 made of a transparent resin interposed therebetween. A solar cell assembly (assembly) 5 in the shape of a rectangular plate sandwiched between a white tempered glass plate 3 forming a light receiving surface and a weather resistant film 4 on the back surface.
The four sides of the solar cell assembly 5 are fitted into and supported by the side frame 6 for long sides and the side frame 7 for short sides, which are extruded products of aluminum or the like, through elastic packing materials 10 for buffering and waterproofing. The long side frame 6 and the short side frame 7 are screw-connected to each other, and only the long side frame 6 is provided with fixing ribs 6a for fixing to the frame over the entire length. The rib 6a was provided with a screw insertion hole 11 for connecting to the frame. Moreover, the terminal box 40 was attached to the back surface of the solar cell module M, and the output cable 41 was led out from this terminal box 40.

A grid-connected residential solar power generation system in which the solar cell module M having the above structure is installed in a general house is becoming widespread, and an example thereof is shown in FIG. In this system, a pedestal 42 installed on a roof, a solar cell array A in which a plurality of solar cell modules M are connected in series and in parallel, and DC power generated in the solar cell array A are conducted through a cable. A connection box 43, an inverter 44 for converting the DC power led from the connection box 43 into AC power, and an indoor distribution board 45 led from the inverter 44 and connected to a commercial power system,
The electric power generated from each solar cell module M is supplied to the electric equipment in the home from the indoor distribution board 45, and the surplus electric power can be sent to the commercial electric power. The unit 46 measures the electric power input from the commercial power system and the electric power sent to the commercial power system, respectively.

Conventionally, as a general structure for mounting the solar cell module M on the roof, as shown in FIG.
A method is used in which a pedestal 42 made of a metal material such as a steel material or an aluminum material is installed on a roof material 47 that is covered with a roof tile, a slate, a metal plate, or the like, and the solar cell module M is fixed on the pedestal 42. ing. The mount 42 is placed on a base plate 49 by a metal fitting 48 and fixed to a rafter 50 or a purlin 51 with screws. Further, the solar cell module M is generally mounted parallel to the roof with a ventilation space 52 of about 5 to 10 cm for cooling.

[0006]

The above-mentioned conventional solar cell module and its mounting structure have the following problems.

When the system having the above structure is installed on the roof, it is difficult to mount the solar cell modules at regular intervals and in parallel with the shape of the roof, which requires skill.

[0008] When the operation is carried out in a snowy area, the snow enters between the adjacent solar cell modules to form a snow pool, the snow on the solar cell modules does not slide down, the glass on the surface is bent and damaged, and light reception becomes an obstacle. There was a risk that the desired function would not be exerted.

The present invention has been made by paying attention to such an actual situation, and it is possible to install the solar cell modules in parallel with each other with a small gap between them at a constant interval, and also there is an adverse effect due to the accumulation of snow. The purpose is to make it suitable for use in snowy areas.

[0010]

In order to achieve the above object, the present invention has the following arrangement.

In the solar cell module mounting structure according to the first aspect, a pair of positioning screws are mounted on a pedestal installed on the roof, and the edges of the fixing ribs on the long side frame or the short side frame are attached. It is characterized in that it is configured to abut and position both positioning screws.

According to a second aspect of the present invention, there is provided a structure for mounting a solar cell module, in which a wiring cover is mounted so as to be positioned between adjacent solar cell modules, and the wiring cover is provided with a rising portion for regulating module intervals. Is characterized by.

The solar cell module mounting structure according to a third aspect of the present invention is configured such that an inter-module cover having substantially the same height as a module surface is provided between adjacent solar cell modules and is mounted on a mount. Is characterized by.

[0014]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a perspective view of the solar cell module according to the present invention in an exploded state, and FIG. 2 is a plan view of the assembled solar cell module. This solar battery module M includes a solar battery cell array 1 in which a large number of solar battery cells 1a are connected in series or in parallel.
Is sandwiched between the front side white plate tempered glass plate 3 and the back side weather resistant film 4 via the front and back filler 2 made of transparent resin to form a rectangular plate-shaped solar cell assembly 5 and the solar cell assembly 5 is formed. A structure in which four sides of 5 are held by a long side frame 6 and a short side frame 7 formed by extruding aluminum, and the long side frame 6 and the short side frame 7 are screw-connected. Has become.

More specifically, as shown in FIG. 3, the long-side side frame 6 and the short-side side frame 7 are formed in a flat hollow pipe shape, and a concave groove is formed in the upper part of the inwardly facing surface thereof. 8 and 9 are formed, and the solar cell assembly 5 is fitted into and supported by the recessed grooves 8 and 9 via an elastic packing material 10 (shown in FIG. 9) for cushioning and waterproofing. Further, fixing ribs 6a, 7a projecting outward are integrally formed from the lower portions of the long-side side frame 6 and the short-side side frame 7, and the ribs 6a, 7a have an angle of 45 ° at both ends. The chamfered portions 6b and 7b cut out at an angle are formed, and the ribs 6a and 7a are provided with screw insertion holes 11 and 12 for fixing to the pedestal.

Hereinafter, some examples of the structure in which the solar cell module M having the above structure is attached to a sloping roof will be shown.

[First Example] FIG. 4 shows a solar cell module M.
The structure in which the slab is mounted sideways on the sloping roof R is also shown in FIG.
The main parts are shown in each of FIGS.

As shown in FIG. 5, in this sloping roof R, a base plate 14 is laid on a rafter 13, a base material 15 such as waterproof paper is laid on it, and an eaves portion is provided on the base material 15. The roof tiles 16 are arranged from the ridge to the roof, and roof material 17
Is covered, and the procedure for attaching the solar cell module to the sloping roof R via a mount will be described below with reference to the drawings.

(1) A square pipe 18 made of an aluminum extruded material is used as a mount for mounting the module. A center line C is preliminarily engraved on the upper surface of the square pipe 18 in the form of a thin groove. First, a pilot hole 19 is drilled at the intersection of the center line C and the roof bar 16, and a wood screw 20 is raftered. Tighten to 13 and fix the square pipe 18. Hereinafter, the square pipes 18 are attached by the number required to fix the solar cell modules M to be similarly installed. In addition, square pipe 1
Underneath 8 is a square pipe (frame) with a rubber sheet 21 interposed.
The vibration of 18 and the screwing part are waterproof.

(2) Next, as shown in FIG. 6, a reference line L parallel to the roof is drawn on the upper surface of the first row of square pipes 18 fixed to the eaves side, and on this reference line L Attach a pair of positioning screws 22.

(3) Next, the solar cell module M in a horizontal position is placed on the square pipe 18, and the pair of left and right ends of the fixing ribs 6a in the long side side frame 6 on the eaves side (inclined lower side) are arranged. 7, the lateral positioning of the solar cell module M is achieved by aligning the corners e of the left and right chamfered portions 6b of the fixing ribs 6a with the end faces of the square pipes 18 while making contact with the positioning screws 22 of FIG. I do. Then, in this positioning state, the fixing rib 6a is fixed onto the square pipe 18 with the drilling screw 23 (shown in FIG. 9).

(4) When the installation of the solar cell modules M in the first row is completed, the solar cell modules M in the second row are arranged and the first and second rows are arranged as shown in FIG. The rising portion 24a of the wiring cover 24 formed by bending a metal plate material is inserted in two places on the left and right between the eyes to position the second row solar cell module M and fix it on the long-side side frame 6. The second-row solar cell modules M are connected to the square pipes 18 in the second and third rows through the ribs 6a for
Secure with drilling screws 23 on top.

(5) After that, the solar cell modules M in the third and subsequent rows are arranged and fixed in parallel with each other by the same procedure.

(6) Thereafter, as shown in FIG. 4, an inter-module cover 25 having an inverted L-shaped cross-section manufactured by extrusion molding of aluminum is attached to the side frame 6 for the long side of the eaves side solar cell module M. Guide portion 25a at the upper corner
Inserted between the adjacent module rows in a state where they are overlapped with each other (shown in FIG. 9) and fixed on the square pipe 18 with a drilling screw 26. The wiring of each solar cell module M is housed and protected in the inter-module cover.

(7) Similarly, as shown in FIG. 4, the ridge-side cover 27 having an inverted L-shaped cross section manufactured by extrusion molding of aluminum is attached to the solar cell module M in the final row.
The guide portion 27a is arranged at the upper end corner portion of the long side side frame 6 on the ridge side in a state where the guide portion 27a is overlapped and fixed to the square pipe upper portion 18 with the drilling screw 28.

(8) The wiring cover 24 is inserted between the solar cell modules M arranged in the horizontal direction with respect to the inclined surface of the roof and attached to the short side frame 7 of each solar cell module M.

This completes the mounting of the solar cell module M in the sideways posture as shown in FIG.

[Second Example] FIG. 10 shows a structure in which a solar cell module M is vertically mounted on a sloping roof R.

In this installation mode, similarly to the previous example, first, a square pipe 18 as a pedestal is screwed and fixed on a sloping roof, and a reference line L parallel to the roof is provided on the square pipe 18 in the first row on the eaves side. And install a pair of right and left positioning screws 22 for each solar cell module M on the reference line L.

Next, two solar cell modules M are arranged side by side on the square pipe 18, the side frames 7 for short sides are respectively brought into contact with the pair of left and right positioning screws 22, and
The rising portions 24a of the wiring cover 24 are inserted into two locations between the left and right solar cell modules M and attached to the long-side side frame 6 to perform lateral positioning. In this positioning state, each solar cell module M is fixed on the square pipe 18 with the drilling screw 23, and thereafter, the second module is moved toward the ridge side in the same manner as the previous example.
Inter-module cover 2 as well as mounting after the second row
5 and the ridge side cover 27 are attached.

[Third Example] FIGS. 11 and 12 show a module installation structure in a snowy area.

In this example, a reinforcing angle member 29 is arranged along the eaves side of the square pipe 18 as a mount fixed to the roof and fixed with wood screws 30, and then the square pipe 18 is fixed.
A reference line L parallel to the roof is drawn on the upper side, and a pair of left and right positioning screws 22 are attached to the reference line L for each solar cell module M. Then, with the rubber sheet 31 attached to each square pipe 18, the solar cell module M
Follow the same procedure as in the previous example to position and attach sequentially. The rubber sheet 31 has a function of suppressing loosening of the drilling screw 23 due to freezing.

[0034]

According to the first aspect of the present invention, a reference line in a desired direction is drawn on the pedestal, a pair of positioning screws are attached on the reference line, and the length of the solar cell module is attached to both positioning screws. It is possible to position and position the solar cell module parallel to the reference line simply by abutting the side frame for the side or the side frame for the short side, and the solar cell module group can be easily operated without requiring skill. You can now set up the array correctly.

According to the second aspect of the present invention, the solar cell module adjacent to the previously positioned and fixed solar cell module can be arranged in parallel at a predetermined interval, and the solar cell can be obtained without skill. Modules can now be arranged correctly.

According to the third aspect of the invention, no snow accumulation occurs between the adjacent solar cell modules,
It is possible to prevent the snow on the modules from slipping off smoothly, and the accumulation of snow between the modules will cause a large amount of snow on the modules to damage the solar cell module or cause a light reception failure. , The solar cell module can now function efficiently even in snowy areas.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a solar cell module.

FIG. 2 is a plan view of a solar cell module.

FIG. 3 is an exploded perspective view showing connection ends of a long-side side frame and a short-side side frame.

FIG. 4 is a perspective view showing a first example of a solar cell module mounting form.

FIG. 5 is an exploded perspective view of a square pipe attachment portion in the first example.

FIG. 6 is a schematic plan view showing a method for forming a reference line on a square pipe.

FIG. 7 is a plan view showing a method for positioning a solar cell module.

FIG. 8 is a perspective view showing a method for setting intervals between solar cell modules.

FIG. 9 is a vertical sectional side view showing a solar cell module mounted state on a sloping roof.

FIG. 10 is a perspective view showing a second example of a solar cell module mounting form.

FIG. 11 is a perspective view showing a third example of a solar cell module mounting form.

FIG. 12 is a vertical sectional side view showing a solar cell module mounted state on a sloping roof according to a third example.

FIG. 13 is an external perspective view showing a conventional solar cell module.

FIG. 14 is a vertical partial sectional view of a conventional solar cell module.

[Fig. 15] Configuration diagram of a solar power generation system

FIG. 16 is a schematic side view showing a conventional general solar cell module mounting structure.

[Explanation of symbols]

 5 Solar cell assembly 6 Side frame for long side 6a Rib 7 Side frame for short side 7a Rib 22 Positioning screw 24 Wiring cover 24a Rising part 25 Inter-module cover

Claims (3)

[Claims] 1. A structure in which a pair of positioning screws are attached to a pedestal that is installed on a roof, and the edges of the fixing ribs on the long-side side frame or the short-side side frame are brought into contact with and positioned by both positioning screws. Mounting structure of the solar cell module. 2. A solar cell module mounting structure in which a wiring cover is mounted between adjacent solar cell modules, and a rising portion for module spacing regulation is provided on the wiring cover. 3. A solar cell module mounting structure configured to dispose an inter-module cover having a height substantially equal to a module surface between adjacent solar cell modules.