JP2502921B2 - Solar cell mounting structure on the roof - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a roof cell mounting structure for installing a solar cell on a roof of a building.

[0002]

2. Description of the Related Art In recent years, when supplying electric power to a building, there has been a solar cell installed on the roof of the building to supply electric power. In these cases, the solar cell panel 3 is attached to the roof part 1 of the building by installing a pair of support rails 2 having a V-shaped cross section on the roof part 1 of the building as shown in FIG. Support rail 2
On the other hand, each solar cell panel 3 is connected and fixed. Here, the solar cell panel 3 is to be installed on the support rail 2 is the solar cell panel 3
This is to prevent the functional deterioration due to abnormal heating of the solar cell panel 3 by forming a ventilation gap 4 between the roof 4 and the roof 1 and performing ventilation through the gap 4. As shown in FIG. 24, an attachment member 32 having an L-shaped connecting piece 31 is attached to the upper end of the fixing plate 30 at the end of each solar cell panel 3, and the fixing plate 3 of this attachment member 32 is attached.
25, the plurality of solar cell panels 3 are attached so as to be adjacent to each other along the longitudinal direction of the support rail 2 by connecting and fixing 0 to the upper surface of the support rail 2 by the fasteners 33, respectively.

[0003]

However, in the conventional example as described above, bolts, nuts, etc. are positioned while positioning the fixing plates 30 of the mounting members 32 provided at both ends of each solar cell panel 3. It is necessary to connect and fix to the support rails 2 by the respective fasteners 33, and it is troublesome to mount the fasteners 33 and position each solar cell panel 3, and the mounting work is troublesome.
When a large number of solar cell panels 3 are installed for installation, there is a problem that a large amount of labor and time are required for the installation work.

An object of the present invention is to solve the above-mentioned problems, and an object of the present invention is to provide a structure for mounting a solar cell on a roof portion, by which the mounting work can be easily carried out without taking time and effort.

[0005]

According to the present invention, in order to achieve the above object, a long support rail 2 is attached to a roof portion 1 of a building.
Are arranged side by side so as to be adjacent to each other, and a plurality of solar cell panels 3 are arranged so as to be arranged between the upper surfaces of the adjacent support rails 2 and adjacent to each other along the longitudinal direction of the support rails 2. A gap 4 for ventilation between the solar cell panel 3 and
In the structure for mounting a solar cell on the roof portion in which is formed, a pair of positioning pieces 5 projecting from one end of the solar cell panel 3 are inserted into and abutted on the lower surfaces of the adjacent solar cell panels 3 which are installed in advance. The positioning pieces 5 are arranged along the inside or outside of the support rails 2, and a pair of connecting pieces 6 projecting from the other end of the solar cell panel 3 are fixed to the upper surface of each support rail 2.

[0006]

The solar cell panel 3 is placed between the adjacent support rails 2, and the positioning piece 5 projecting from one end of the solar cell panel 3 is installed in advance on the lower surface of the adjacent solar cell panel 3. A plurality of solar cell panels 3 are sequentially installed so as to be adjacent to each other by fixing the connecting piece 6 projecting from the other end of the solar cell panel 3 to the upper surface of each support rail 2 so as to be adjacent to each other. Then, in each solar cell panel 3, the positioning piece 5 is inserted into and brought into contact with the lower surface of the solar cell panel 3 installed in advance so that each positioning piece 5 is arranged along the inside or outside of each support rail 2. Therefore, the installation position is positioned by the positioning piece 5, and the positioning is accurately performed at the time of mounting.
By simply fixing the connecting piece 6 mounted on the support rail 2 to the support rail 2, the attachment to the support rail 2 can be performed without performing a troublesome positioning work.

[0007]

The present invention will be described below in detail based on the illustrated embodiments. As shown in FIG. 11, on the roof part 1 of the building, a plurality of support rails 2 arranged along the eaves direction from the eaves to the ridge direction, that is, along the roof slope are installed so as to be adjacent to each other.
A solar cell panel 3 is installed between adjacent support rails 2.

The support rail 2 is formed by bending a metal plate material while partially welding it. As shown in FIGS. 8 to 10, the support rail 2 has a flange piece from the upper edge of the receiving box body 2a whose upper surface is open. The main body is formed by projecting 2b. The roof portion 1 of the building in which the support rails 2 are installed is formed by laying a base material 8 called rubber asroofing on a base plate 7 as shown in FIG. 12 and FIG. Receiving bars 9 are attached to the back surface at predetermined intervals. The hook bolt 1 whose upper end projects above the roof 1 is attached to the receiving bar 9.
The hook portion 10a at the bottom of 0 is locked, and the upper end of the hook bolt 10 is inserted into the receiving box body 2a of the support rail 2 and the nut 11 is screwed into the hook bolt 10. It is fixed to the roof 1. As shown in FIG. 13, the upper edge of the base material 8 on the ridge side is an upper roof tile 12
The lower edge of the base material 8 on the eaves side is placed on the draining member 13. Reference numeral 23 in the figure is a caulking material for ensuring the waterproof property of the mounting portion of the support rail 2.

The solar cell panel 3 is constructed by integrating a solar cell into a mounting frame 14 formed in a rectangular shape by a vertical frame 14a and a horizontal frame 14b as shown in FIG. The frame 14 is provided with screw holes 17 used at the time of connecting and fixing the connecting member 15 as shown in FIG. This screw hole 17
Are provided on the horizontal frame 14b, respectively, and the connecting member 15
Is provided at a position closer to the end portion or apart from the end portion so that it can be mounted closer to the end portion of the mounting frame 14 or separated from the end portion. Here, in the structure shown in FIG. 7B, the screw hole 17 provided in each horizontal frame 14b so that the connecting member 15 is attached at a position apart from the end is separated from the end. The connecting members 15 provided at the positions and attached to the mounting frame 14 form the connecting pieces 6, respectively. That is,
The solar cell panel 3 formed by using the mounting frame 14 shown in FIG. 7B is attached to the lower edge of the support rail 2 on the eaves side by both connecting pieces 6.

As shown in FIG. 3, the connecting member 15 is formed by forming a plurality of screw holes 18 in a plate member 15a formed in a rectangular shape, and its end portion projects from the end portion of the solar cell panel 3. In this manner, the fastener 16 is attached to the attachment frame 14, and the attachment 16 is attached by inserting the fastener 16 into the screw hole 17 provided in the lateral frame 14b of the attachment frame 14. The positioning piece 5 is formed by the end of the connecting member 15 protruding from one end of the solar cell panel 3, and the connecting piece 6 is formed by the end of the connecting member 15 protruding from the other end of the solar cell panel 3. It is supposed to be done.

A recess 18a is formed in the screw hole 18 formed in the connecting member 15 by counterbore processing. When the fastener 16 is inserted into the screw hole 18, the head 16a of the fastener 16 is recessed 18a. The head 16a of the fastener 16 is housed inside and does not protrude from the upper surface of the plate member 15a as shown in FIG. The spot facing is performed on either the back surface side or the front surface side of the plate material 15a. That is,
As shown in FIG. 5, the screw hole 18 used when connecting to the screw hole 17 provided in the mounting frame 14 that constitutes the solar cell panel 3 by the fastener 16 is counterbored on the lower surface side of the plate material 15a. Is provided, and the support rail 2
The screw hole 18 used when the fastener 16 is connected in a state of being in contact with the upper surface of the plate 15a is provided with a counterbore on the surface side of the plate member 15a.

As shown in FIG. 11, measuring instruments 21 such as a pyranometer 19 and a solar monitor 20 for measuring the insolation state are installed on the uppermost part of the support rail 2 on the ridge side. The installation state of the measuring instrument 21 is shown in FIGS. 14 and 15. Reference numeral 22 in FIG. 11 is a lighting window. Terminal boxes T are provided respectively on the lower surfaces of the adjacent solar cell panels 3, electric wires Tb for drawing in are provided on the eaves side, and terminals Ta for sending are provided on the ridge side. The electric wire Tb for feeding and the terminal Ta for feeding are connected to each other. The terminal box T is located inside the support rail 2, and the electric wire Tb is hidden by the support rail 2 and follows the roof portion 1.
It is designed so that it is not exposed indiscriminately.

Therefore, the plurality of solar cell panels 3 installed on the roof part 1 of the building are sequentially installed toward the ridge side from the lower edge portion of the support rail 2 installed on the roof part 1 located on the eaves side. The positioning pieces 5 projecting from one end of each solar cell panel 3 are arranged along the outside of the support rails 2 and the ridge side, that is, the electric wire Tb of the solar cell panel 3 at the upper position. The eaves side, that is, the terminal Ta of the solar cell panel 3 at the lower position is inserted and connected. After the electric connection is completed, the positioning piece 5 of the solar cell panel 3 at the upper position is inserted along the support rail 2 and abutted on the lower surface of the solar cell panel 3 at the lower position already fixed, and contacted with each support rail 2
Connecting piece 6 of solar cell panel 3 placed on top
Is attached to each support rail 2 by a fastener 16. Here, in the solar cell panel 3 located at the lowermost part, the mounting frame 14 shown in FIG. 7B is used, and the connecting pieces are connected from one end and the other end of the solar cell panel 3, respectively. 6 are provided in a protruding manner, and are arranged at the lower edge of the support rail 2 on the eaves side so as to connect each connection piece 6 to the support rail 2.

When mounting the solar cell panel 3, the positioning piece 5 is inserted under the pre-installed solar cell panel 3, and the pre-installed solar cell is installed.
Place each positioning piece 5 beside each connecting piece 6 of the panel 3
Restrict the lateral movement of the rails perpendicular to the support rails 2,
By placing the binding piece 6 on the upper surface of the support rail 2, the solar cell panel 3 is positioned at a predetermined position on the support rail 2 , and the connection piece 6 is connected to the support rail 2 by the fastener 16. The solar cell panel 3 can be mounted by using, and the solar cell panel 3 can be mounted simply by fixing the connecting piece 6 with the fixing tool 16 while positioning the solar cell panel 3 at an accurate position. As described above, the weight of one piece is about 7 kg, and it is possible to easily attach the heavy object at an accurate position without troublesome work in high places.

In the illustrated embodiment, the solar cell panels 3 are arranged in three rows, but the present invention is not limited to this, and three or more rows or three rows. It may be less than the row. The connecting member 15 forming a positioning piece 5, as is shown what is attached to the mounting frame 14 as Ru is disposed outside of the support rail 2 is arranged inside the supporting rail 2 It may be installed , that is, installed in advance.
When hitting the connecting piece 6 of the solar cell panel 3 and the supporting rail 2,
It suffices if the solar cell panel 3 is arranged at a position where the solar cell panel 3 is restricted to an accurate mounting position by restricting the lateral movement thereof at right angles . Further, although the fastener 16 is shown to use wood screws, it may be constituted by bolts and nuts.

By the way, in the embodiment shown in FIGS. 1 and 7, terminal boxes T are provided respectively on the lower surfaces of the adjacent solar cell panels 3, and a lead-in electric wire Tb is provided on the eaves side.
A terminal Ta for feeding is provided on the ridge side, and an electric wire Tb for pulling in is provided.
Although the embodiment is shown in which the and the feeding terminals Ta are mutually connected, the electrical connection between the solar cell panels 3 is not limited to the above configuration. 16 to 22 show another embodiment of electrical connection between the solar cell panels 3.

As shown in FIGS. 16 and 17, the solar cell panel 3 is provided with connection outlets 40a, 40b, 40c and 40d at the central portions of the upper, lower, left and right side surfaces. A joint box 41 is provided at the center of the solar cell panel 3. Terminals are provided respectively on the plus side and the minus side from the solar cell sent to the joint box 41, and in the embodiment, two terminals 4 are provided on the plus side.
2a and 42b are provided, and two terminals 43a are provided on the negative side.
43b is provided. In addition, each outlet 40a, 40
connection terminals 44a, 44b, 45a, 45b, 46a, 46b, and
47a, 47b are provided, and the connection terminals 44a, 4b
4b, 45a, 45b, 46a, 46b, 47a, 47
b is a joint box 4 as shown in FIG.
It is arranged around one terminal 42a, 42b, 43a, 43b. Then, the connection terminals 44a, 44b, 4
5a, 45b, 46a, 46b, 47a, 47b and terminals 42a, 42b, 43a, 43b are solar cell panels 3
It is exposed at the center of the back surface of.

The solar cell panel 3 circuit is used as a circuit in the eaves ridge direction (that is, in the vertical direction), and the upper and lower outlets 4 are used.
When using it by energizing 0a and 40b,
As shown in FIG. 18, the terminal 42a is connected to the connection terminal 44a, the terminal 42b is connected to the connection terminal 45a, the terminal 43a is connected to the connection terminal 44b, and the terminal 43b is connected to the connection terminal 45b.

When the circuit of the solar cell panel 3 is used as a circuit in the direction parallel to the eaves (that is, the left-right direction) by energizing the left and right outlets 40c, 40d, the terminals are connected as shown in FIG. 42a and connection terminal 46
b, the terminal 42b and the connection terminal 47b are connected to each other, and the terminal 43
a is connected to the connection terminal 46a, and the terminal 43b is connected to the connection terminal 47a.

When the circuit of the solar cell panel 3 is L-shaped and is used so as to communicate with the outlets 40a and 40d, as shown in FIG.
2a is connected to the connection terminal 44a, terminal 42b is connected to the connection terminal 47b, terminal 43a is connected to the connection terminal 47a, and terminal 43b is connected to the connection terminal 44b. Similarly, the circuit of the solar cell panel 3 is formed in an L shape so that the outlets 40a and 40c communicate with each other, or the outlets 40b and 40c communicate with each other, or the outlets 40b and 40d communicate with each other. can do.

In each of the above-mentioned examples, the terminals are electrically connected to each other by connecting both legs to the corresponding terminals by connecting both legs 48a of the electrical connector 48 in which a wire rod is bent in a U shape as shown in FIG. It is connected by plugging in. In this case, a portion of the electrical connecting device 48 other than the leg portion 48a is covered with an insulating coating 48b. Then, in a state where the positive side and the negative side of the solar cell of the solar cell panel 3 are electrically connected to the outlets provided on any two side surfaces of the four side surfaces of the solar cell panel 3 as described above, The solar cell panels 3 adjacent to each other are electrically connected in the vertical direction and are electrically connected in the horizontal direction. In this case, as shown in FIG. 22, the outlets provided on the facing surfaces of the adjacent solar cell panels 3 are connected using the connector 49. By doing this,
The solar cell panels 3 adjacent to each other in the vertical direction or the horizontal direction can be electrically connected with one touch.

[0022]

As described above, according to the present invention, a pair of positioning pieces projecting from one end of a solar cell panel are inserted into and abutted on the lower surfaces of adjacent solar cell panels which are installed in advance, and the positioning pieces are supported. It is arranged along the inside or outside of the rail, and a pair of connecting pieces protruding from the other end of the solar cell panel is fixed to the upper surface of each support rail, so that the positioning pieces are installed in advance. By inserting and abutting on the lower surface of the adjacent solar cell panel and arranging along the inside or outside of the support rail, the solar cell panel is positioned at an accurate position while being positioned by the positioning piece,
Mounting is done by fixing the connecting piece mounted on the support rail to the support rail, and the installation work can be done easily and without any effort, especially when installing on the roof. It can be done easily.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is a perspective view showing a ventilation state of the above.

FIG. 3 is a perspective view showing a connecting member.

4 is a cross-sectional view taken along the line AA in FIG.

5 is a sectional view taken along line BB in FIG.

FIG. 6 is a partial cross-sectional view showing a mounting state of a fixing tool.

7A and 7B are plan views showing respective examples of screw holes provided in the mounting frame.

FIG. 8 is a perspective view of a support rail.

9 is a sectional view taken along line CC in FIG.

FIG. 10 is a sectional view taken along line DD in FIG. 8;

FIG. 11 is a plan view of the roof portion showing the installation state of the solar cell panel.

12 is a sectional view taken along line EE in FIG.

13 is a sectional view taken along line FF in FIG.

14 is an enlarged plan view of a G portion in FIG. 11, showing an installation state of measuring instruments.

FIG. 15 is a sectional view of the above.

FIG. 16 is a perspective view of another embodiment of the above solar cell panel.

FIG. 17 is a schematic plan view showing the above-mentioned circuit.

FIG. 18 is an explanatory diagram showing an example in the case where the circuit is linear in the vertical direction in the above.

FIG. 19 is an explanatory diagram showing an example of the case where the circuit is linear in the left-right direction of the above.

FIG. 20 is an explanatory diagram showing an example of a case where an L-shaped circuit of the same as above is used.

FIG. 21 is a perspective view showing an electrical connector used in the above.

FIG. 22 is a front view for explaining the case where the above solar cell panels are connected to each other using a connector.

FIG. 23 is a sectional view showing a conventional example.

FIG. 24 is a perspective view of a mounting member used in a conventional example.

FIG. 25 is an enlarged front view of a portion H in FIG. 23.

[Explanation of symbols]

 1 Roof part 2 Support rail 3 Solar cell panel 4 Gap 5 Positioning piece 6 Connecting piece

 ─────────────────────────────────────────────────── --- Continuation of the front page (72) Inventor Osamu Kita 2-34-1 Honjo Higashi, Kita-ku, Osaka City Kindennai (72) Inventor Shigeru Matsuoka 1-4-1 Shinsenri Nishimachi, Toyonaka City, Osaka Prefecture Within the National Housing Industry Co., Ltd. (72) Inventor Hirotoshi Asami 1-4-1 Shinsenri Nishimachi, Toyonaka City, Osaka Prefecture Within the National Housing Industry Co., Ltd.

Claims (1)

(57) [Claims] 1. A plurality of long support rails are arranged side by side on a roof part of a building so as to be adjacent to each other, and are arranged so as to extend between upper surfaces of the adjacent support rails, and to be adjacent to each other along a longitudinal direction of the support rails. A solar cell panel is installed, and a gap for ventilation is formed between the top surface of the roof and the solar cell panel. In a solar cell mounting structure on the roof, a pair of positionings protruding from one end of the solar cell panel. Insert the piece into the lower surface of the adjacent solar cell panel installed in advance and contact it, arrange this positioning piece along the inside or outside of the support rail,
A structure for mounting a solar cell on a roof, comprising a pair of connecting pieces protruding from the other end of the solar cell panel fixed to the upper surface of each support rail.