JPH09279789A - Solar-cell module and its mounting structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a solar-cell module from being cracked by stamping or wind by using a simple and inexpensive means. SOLUTION: A box-shaped reinforcing member 6A for reinforcing and supporting a solar-cell panel 2 is attached to the center of the back of the solar-cell panel 2. The box-shaped reinforcing member 6A is provided with an upwardly-open storage part 61 in which a soldering part and a diode for preventing backflow are sealed and enclosed. Upright pieces 33 for forming a cooling ventilation layer by floating the solar-cell panel 2 from a root surface (mounting surface) by a predetermined distance and mounting flanges 34 curved and extended from the lower ends of the upright pieces 33 are provided at the bottoms of the pair of vertical frames 31, 31 constituting a frame 3. The bottom surface of the box-shaped reinforcing member 6A is set to be flush with the bottom surfaces of the mounting flanges 34, 34. Wind and live loads applied to the upper surface of the solar-cell panel 2 are transmitted to the roof surface not only via the frame 3 but also via the box-shaped reinforcing member 6A.

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 suitable for being installed on the roof of a building such as a house and a mounting structure thereof.

[0002]

2. Description of the Related Art In recent years, a panel-shaped solar cell module has been installed on a roof of a house or the like to protect a clean solar environment due to serious problems of global environment and energy depletion caused by increased consumption of fossil fuels. 2. Description of the Related Art Residential solar power generation systems that directly extract power from energy and supply it to homes have become widespread. This type of solar cell module 100 is shown in FIG.
As shown in, the minimum unit of solar cell 20 called a cell
, 201, ... on a transparent substrate 202 such as white plate glass,
Further, a plurality of solar cell panels 200 are arranged and sealed in a state of being electrically connected to each other via lead wires 203, 203, ... Rectangular frame 3 to support
00 and 00. By the way, solar cell 2
01, 201, ... Generate electricity by sunlight, but if the solar cells 201, 201, ..., themselves are excessively heated, the energy conversion efficiency is significantly reduced. Therefore, conventionally, the frame body 300 faces each other. A pair of leg-shaped fixing pieces 301, 301 are provided on the lower side of any two sides, and when the solar cell module 100 is installed on the roof 400 or the like, the leg-shaped fixing pieces 301, 301 contact the inclined roof surface 400a. In this state, the fixtures 500, 500 such as screws and nails are screwed (or hammered) into the fixture insertion holes 301a, 301a, ... The roof 400a is attached and fixed.

In this way, the solar cell panel 200
Since the ventilation layer K for cooling the solar cell is formed between the back surface of the solar cell and the inclined roof surface 400a, the solar cells 201, 201,
It is possible to prevent overheating of. However, between the solar cell panel 200 and the sloping roof surface 400a, with the exception of both side ends, in the hollow structure (the same figure), as the solar cell panel 200 becomes large in area, the wind pressure causes There is a fear that the solar cell panel 200 will break. In addition, as shown in FIG. 12, all or most of the sloping roof surface 400a on the side facing the sun (in particular, the south side in Japan) is filled with the solar cell modules 100, 100, ... At the time of construction of the modules 100, 100, ...
It may happen that the inclined roof surface 400a must be moved while stepping on 0, 100, .... Further, even after the solar cell modules 100, 100, ... Are installed, it may be necessary to step on the solar cell modules 100, 100, .. In such a case, stepping cracks may occur.

In order to eliminate such inconvenience, as shown in FIG. 13, a backup layer 60 made of, for example, a corrugated steel plate is provided on the lower surface of the solar cell panel 200.
By providing 0, there is provided a solar cell module in which the solar cell panel 200 is prevented from cracking due to trampling or wind (see Japanese Utility Model Laid-Open No. 61-86958).

[0005]

However, in the prior art described in the above publication, since a backup layer having high strength must be provided over the entire lower surface of the solar cell panel, the work of attaching the member is complicated and the cost of the member is high. Will be higher.

The present invention has been made in view of the above circumstances, and provides a solar cell module and its mounting structure capable of preventing cracking due to trampling or cracking due to wind by a simple and inexpensive means. Has an aim.

[0007]

In order to solve the above problems, the solar cell module according to the invention of claim 1 is
A solar cell panel having a plurality of solar cells electrically connected to each other through lead wires in a sealed state on a transparent substrate, and a frame body supporting the solar cell panel at its end. Together with at least the central portion of the back surface of the solar cell panel or in the vicinity thereof, a reinforcing block member for supporting the solar cell panel in a reinforcing manner, one or more,
The feature is that they are attached locally or in a scattered manner.

Further, the invention according to claim 2 relates to the solar cell module according to claim 1, wherein the frame body is abutted and fixed to the lowermost part of the frame body on a predetermined installation surface of the solar cell module by a mounting fixture. The reinforcing block member is characterized in that the bottom surface of the lowermost part thereof is set to be substantially flush with the bottom surface of the fixing portion.

The invention according to claim 3 relates to the solar cell module according to claim 1, wherein the frame is mounted and fixed on an upper surface of a mounting base fixed to a predetermined installation surface of the solar cell module. The reinforcing block member has a pedestal fixing part that is abutted and fixed by, and when the solar cell module is placed and fixed on the mounting pedestal, the bottom surface of the lowermost portion is substantially the same as the bottom surface of the mounting pedestal. It is characterized by being set to be flush.

The invention according to claim 4 relates to the solar cell module according to claim 1, characterized in that the reinforcing block member includes height adjusting means.

[0011] Further, the invention according to claim 5 is based on claim 1,
The solar cell module according to the second or third aspect is characterized in that a detachable leg portion that reaches a predetermined installation surface of the solar cell module is provided at a lower portion of the reinforcing block member.

Further, the invention according to claim 6 is the invention according to claim 1,
The solar cell module according to 2, 3, or 4 is characterized in that a rib-shaped or boss-shaped leg that reaches a predetermined installation surface of the solar cell module is provided at a lower portion of the reinforcing block member. I am trying.

[0013] The invention according to claim 7 is based on claim 1,
According to the solar cell module of 2, 3, 4, 5 or 6, a lead wire for taking out electric power generated in the solar cell is extended to the outside from a side surface of at least one of the reinforcing block members. It is characterized by being.

The invention according to claim 8 relates to the solar cell module according to claim 7, wherein the reinforcing block member is provided with a recess of an upper surface opening, and at least the lead wire is formed in the recess. It is characterized in that a connection portion or a diode for preventing backflow is housed.

A ninth aspect of the present invention relates to the solar cell module according to the eighth aspect, wherein the connecting portion or the diode is housed in the recess of the reinforcing block member and is made of a waterproof filler. It is characterized by being sealed.

The invention of claim 10 is the same as that of claim 8.
Or, in the solar cell module according to 9, wherein the connecting portion is provided with an inner lead wire that is wired in a sealed state in the solar cell panel, a waterproof coating is applied, and via the reinforcing block member. It is characterized in that it is a connection point with an external lead wire extending to the outside.

The invention according to claim 11 relates to the solar cell module mounting structure according to claim 1, 2, 3, 4, 5 or 6, wherein the frame body is mounted on the mounting surface or the mounting base. The reinforcing block member is mounted and fixed by a mounting fixture, and the reinforcing block member is in contact with or close to a corresponding portion of the installation surface or the mounting base to support the solar cell panel in a reinforcing manner. It is characterized by that.

The invention according to claim 12 relates to the solar cell module mounting structure according to claim 1, 2, 3, 5 or 6, wherein the frame is mounted and fixed on the installation surface or the mounting frame. Is attached and fixed by a tool, and a height adjusting member is inserted in a gap between the reinforcing block member and the corresponding portion of the installation surface or the mounting frame, and the reinforcing block member and the height are It is characterized in that it has a structure in which the solar cell panel is reinforced by an adjusting member.

The invention according to claim 13 is a solar battery panel comprising a plurality of solar battery cells arranged in a sealed state on a transparent substrate, and a frame body for supporting the solar battery panel at its end. Related to the solar cell module mounting structure consisting of
The frame body is attached and fixed to a predetermined installation surface or a mounting frame by a mounting fixture, and at least the central portion of the back surface of the solar cell panel or its vicinity, and the corresponding portion of the installation surface or the mounting frame. A single or a plurality of block members are interposed between them, and the structure is such that the solar cell panel is supported in a reinforcing manner.

[0020]

In the solar cell module of the present invention, at least the central portion of the back surface of the solar cell panel or its vicinity is provided with a reinforcing block member for supporting the solar cell panel in a singular or plural, locally or It is attached sporadically. At the bottom of the frame body, a fixing portion that is fixedly attached to the installation surface of the solar cell module in an abutting state is provided. And, if the bottom surface of the lowermost portion of the reinforcing block member is set to be substantially flush with the bottom surface of the fixing portion, the wind load or the load applied to the upper surface of the solar cell panel after the solar cell module is installed. Is transmitted to the installation surface such as the roof of the house via the frame, and is also transmitted to the installation surface via the reinforcing block member. Therefore, according to the configuration of the present invention, even when the solar cell panel is stepped on with a foot, or even when a large wind pressure acts on the solar cell panel, the deflection of the solar cell panel, and by extension, the maximum generated in the solar cell panel. It is possible to relieve stress, and prevent trampling and cracking due to wind pressure. Further, since it is possible to reinforce without using an expensive and complicated mounting surface material for backup, the cost of the solar cell module can be reduced.

Further, the reinforcing block member is provided with a concave portion having an upper surface opening, and in this concave portion, a connecting portion of the lead wire (a solder joint portion between the internal lead wire and the waterproof-coated external lead wire) and a diode for preventing backflow are provided. If you store it in a sealed state, you do not need an independent dedicated terminal box,
It is possible to further reduce the cost of the solar cell module.

Even in the conventional solar cell module having no reinforcing block member as described above, at the time of installation, at least the central portion of the back surface of the solar cell panel or its vicinity,
The solar cell panel can be reinforced by adopting a structure in which a single block member or a plurality of block members are inserted between the installation surface or the corresponding portion of the mounting base (the invention according to claim 13).

[0023]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. The description will be specifically made using an embodiment. First Embodiment FIG. 1 is a vertical sectional view showing the structure of a solar cell module according to a first embodiment of the present invention, FIG. 2 is a bottom view showing the outer appearance of the back surface of the solar cell module, and FIG. FIG. 3 is a vertical cross-sectional view showing a roof fixing structure of the solar cell module. As shown in FIG. 1, the solar cell module 1A of this example has a plurality of silicon solar cells 21, 21, ... That are electrically connected to each other via lead wires 23, 23 ,. A solar cell panel 2 that is arranged in a sealed state, a rectangular frame 3 that is fitted into the peripheral edge of the solar cell panel 22, and a box type that supports the solar cell panel 2 at the center of its rear surface for reinforcement. It is roughly configured with a reinforcing material (box type reinforcing block member) 6A.

More specifically, the solar cell panel 2 described above.
Is a transparent glass substrate 22 such as a white tempered glass having a thickness of about 3.2 mm, a horizontal dimension of 900 to 1,200 mm, and a vertical dimension of about 900 mm, and a lead wire 23, as shown in FIG.
Transparent glass substrate 2 connected in series by 23, ...
A plurality of silicon solar cells 21, 21, ... With a thickness of about 0.3 mm, which are attached to the second solar cell 2, and 2 for extracting electric power generated in the silicon solar cells 21, 21 ,.
Terminal side inner lead wires 23a, 23a, a back surface protective cover material 24 such as a resin-coated metal sheet having a thickness of about 0.1 mm, both surfaces of which are coated with PVF (vinyl fluoride resin), a transparent glass substrate 22, and silicon. Solar cells 21,21
, Between the solar cells 21, 21, ... And the terminal side internal lead wires 23a, 23a, between the terminal side internal lead wires 23
a, 23a, silicon solar cells 21, 21, ... And three EVAs inserted between the back surface protective cover material 24.
(Ethylene vinyl acetate) film and the like filling adhesive 25, and these components are transparent glass substrate 22 such as white plate tempered glass 22-filling adhesive 25 such as EVA film-silicon solar cells 21,21 ...-
Filling adhesive 25 such as EVA film-lead wires 23, 2
3-Filling adhesive 25 such as EVA film-Backside protective cover material 24 such as resin-coated metal sheet, etc. are laminated in this order and integrated into a laminated structure by thermocompression bonding, then integrated thickness 5 m
The peripheral edge of the laminated body of about m is sealed with a sealing material 26 such as butyl rubber.
It is obtained by sealing with.

In the frame body 3, a pair of aluminum vertical frames 31 and 31 and a pair of horizontal frames 32 and 32 each having a fitting groove having a U-shaped cross section on the inner surface fits the solar cell panel 2. It is a square shape. In addition, at the bottom of each vertical frame 31, the solar cell panel 2 is floated a predetermined distance (for example, 10 to 50 mm) from the installation surface such as the roof surface 4a (see FIG. 3) to form the cooling ventilation layer K. A standing piece 33 and a mounting flange 34 that extends outwardly at the lower end of the standing piece 33 are provided. The mounting flange 34 has a mounting fixture such as a screw or a nail. 5, mounting holes 34a, 34a, ... For fixing the solar cell module 1A are formed on the installation surface such as the roof surface 4a.

The box-shaped reinforcing member 6A is used to reinforce the solar cell panel 2 at the center of the rear surface, and is made of, for example, ABS.
The reinforcing block member is made of a hard plastic such as resin. When the upper surface of the block member is adhered to the center of the rear surface of the solar cell panel 2, the bottom surface thereof is the mounting flange 34.
It is set to be flush with the bottom of the. Further, the box-type reinforcing material 6A also plays a role as a terminal box, and a storage portion 61 having an upper surface opening is formed therein. In the housing portion 61, a solder joint portion for electrically connecting the terminal side inner lead wires 23a, 23a sealed in the solar cell panel 2 and the waterproof outer lead wires 23b, 23b and a drawing for preventing backflow. A diode (not shown) and the like are housed, and these objects to be housed are sealed with a filling adhesive material 62 such as a silicone resin.

The solar cell module 1A having the above-described structure is used for a roof of a house or the like (sloping roof having a roof surface 4a having a good flatness) 4
In order to attach and fix the solar cell module 1A to the installation surface, the mounting flanges 34, 34 of the solar cell module 1A are brought into contact with the roof surface 4a. , Are screwed (or driven) into the mounting holes 34a, 34a, ... Of the mounting flanges 34, 34 to mount and fix the solar cell module 1A on the roof surface 4a. At this time, when the field board 41 forming the roof surface 4a is not so thick, the tree 4 supporting the roof surface 4a
2, 42 (or reinforcing bars) at the mounting holes 34a, 34
It is preferable to match a, ... In this example, as described above, the mounting flange 3 of the solar cell module 1A
Since the bottom surfaces of the boxes 4 and 34 and the bottom surface of the box-shaped reinforcing member 6A are set to be flush with each other, the mounting flange 3
When 4 and 34 are brought into contact with the roof surface 4a having good flatness, the bottom surface of the box-shaped reinforcing member 6A is also brought into contact with the roof surface 4a.

Thus, according to the configuration of this example, when an operator rides on the solar cell panel 2 or when a large wind pressure acts on the solar cell panel, these external forces (loading load) are applied. , Wind load) is not only transmitted to the roof surface 4a via the standing pieces 33 of the vertical frames 31, 31 of the solar cell module 1A and the mounting flange 34,
Box-shaped reinforcement 6 from the center of the back surface of the solar cell panel 2
It is also transmitted to the roof surface 4a via A. Therefore, the bending of the solar cell panel 2 and eventually the stress generated in the solar cell panel 2 can be relieved, and the cracking due to trampling and the cracking due to wind pressure can be prevented. In addition, it is possible to reinforce without using expensive and complicated mounting surface material for backup.
The strength of the transparent glass substrate 22 such as white plate tempered glass can be set to be low. Further, since the box-type reinforcing material 6A also plays a role as a terminal box, an independent dedicated terminal box becomes unnecessary. Therefore, the cost of the solar cell module can be reduced.

Second Embodiment FIG. 4 is a vertical sectional view showing a roof fixing structure for a solar cell module according to a second embodiment of the present invention. This second
The fixing structure of the solar cell module of the embodiment has the above-mentioned first structure.
The difference from the embodiment is that the solar cell module 1
Instead of directly screwing A onto the roof surface 4a, the roof surface 4a is fixed to the roof surface 4a via dedicated mounts 7 and 7, and the central portion of the solar cell panel 2 is fixed by the box-shaped reinforcing member 6A and the spacer 8. This is the point of reinforcement. That is,
First, the mounting bases 7 and 7 are fixed to the roof surface 4a, and the mounting flanges 34 and 34 of the solar cell module 1A are brought into contact with the fixed mounting bases 7 and 7, and further, after alignment is performed, .. are screwed into the mounting holes 34a, 34a, .. of the mounting flanges 34, 34 to mount the solar cell module 1A on the mounting base 7,
Place and fix on 7. At this time, since the bottom surface of the box-type reinforcement member 6A is flush with the top surfaces of the mounting bases 7, 7, the height of the mounting bases 7, 7 is between the bottom surface of the box-type reinforcement member 6A and the roof surface 4a. Corresponding voids will result. Therefore, this space is filled with the spacer 8 for reinforcement. In addition,
Since the configuration other than the above is the same as that of the first embodiment, in FIG. 4, the same components as those of the components of FIGS. 1 and 3 are designated by the same reference numerals, and the description thereof will be omitted.

According to the structure of the second embodiment, the roof surface 4
Even when the solar cell module 1A cannot be directly mounted and fixed on a, by using the exclusive mounting bases 7 and 7 and the spacers 8, it is possible to obtain substantially the same effects as those described in the first embodiment. If the spacer 8 is used, the bottom surfaces of the mounting flanges 34, 34 and the box-shaped reinforcing member 6
Even the solar cell module 1A in which the bottom surface of A is set flush with each other can be installed on a rugged roof surface, for example, a roof surface of a roof with a tiled roof.

[Third Embodiment] FIG. 5 is a vertical sectional view showing the structure of a solar cell module according to a third embodiment of the present invention and a roof fixing structure.
The solar cell module 1B of the third embodiment is different from that of the second embodiment described above in that the height is low, so that the box-shaped reinforcing material 6A (FIG. 4) requiring the help of the spacer 8 is used instead. That is, the bottom surface of the box-shaped reinforcing material 6B reaches the roof surface 4a. According to the configuration of the third embodiment, the spacer 8 is unnecessary, so that the mounting work can be performed easily and quickly.

Fourth Embodiment FIG. 6 is a vertical sectional view showing the structure of a solar cell module according to a fourth embodiment of the present invention, and FIG. 7 is a bottom view showing the outer appearance of the back surface of the solar cell module. . The solar cell module 1C according to the fourth embodiment has a housing 6 for housing a solder joint, a backflow preventing diode, and the like in a sealed state on the upper portion.
1 and has a pair of rib-shaped leg portions 63, 63 at the bottom thereof. Here, the upper surface of the box-shaped reinforcing member 6C is the solar cell panel 2
The bottom surfaces of the leg portions 63, 63 are set so as to be flush with the bottom surfaces of the mounting flanges 34, 34 when bonded to the center of the back surface of the. In the configuration of the fourth embodiment, since the box-shaped reinforcing member 6C is provided with the rib-shaped leg portions 63, 63, even if the box-shaped reinforcing member 6C is made light and small,
The required strength can be maintained.

Fifth Embodiment FIG. 8 is a bottom view (back surface external view) showing the structure of a solar cell module according to a fifth embodiment of the present invention. This fifth
The solar cell module 1D of the embodiment has a storage portion 61 that stores a solder joint portion, a backflow prevention diode, and the like in a sealed state in the upper portion, and has, for example, four boss-shaped leg portions 6 in the lower portion.
It is constituted by a box type reinforcing member 6D having 4, 64, .... Here, in a state where the upper surface of the box-shaped reinforcing member 6D is bonded to the center of the rear surface of the solar cell panel 2, the bottom surfaces of the leg portions 64, 64, ...
It is set so as to be flush with the bottom surfaces of 4, 34. In the configuration of the fifth embodiment, the box-type reinforcing member 6D is provided with the boss-shaped leg portions 64, 64 ,.
As described in the embodiment, the required strength can be maintained even if the box-shaped reinforcing material 6D is made light and small.

Sixth Embodiment FIG. 9 is a vertical sectional view showing the structure of the solar cell module according to the sixth embodiment of the present invention. In the solar cell module 1E of the sixth embodiment, a storage portion 65 for storing a solder joint portion, a backflow prevention diode, and the like in a sealed state is provided on the upper portion.
And a box-shaped reinforcing member 6E including a rubber leg portion 66 that is detachably fitted in a mounting hole 65a provided in the lower surface of the storage portion 65. Here, a large number of leg portions 66 having various sizes are prepared, and when the upper surface of the box-type reinforcing member 6E is bonded to the center of the back surface of the solar cell panel 2, the bottom surface of the leg portion 66 has a mounting flange. Three
Rubber leg 66 that is flush with the bottom surface of 4, 34
Will be able to select properly. According to the configuration of the sixth embodiment, with respect to the mounting frames 7 and 7 of various heights,
The leg portion 66 having an appropriate size can be selected, and installation work (dimension adjustment of the box-type reinforcing member 6E) becomes easy.

Seventh Embodiment FIG. 10 is a vertical sectional view showing a structure of a solar cell module and a roof fixing structure according to a seventh embodiment of the present invention. A box-type reinforcing member 6F having a height adjusting function is attached to the solar cell module 1F of the seventh embodiment. The box-type reinforcing member 6F includes a male screw member 67 adhered to the center of the back surface of the solar cell panel 2 and a female screw member 68 that is detachably screwed to the male screw member 67. A storage portion 69 having an upper surface opening having the same storage purpose as the storage portion 61 of the embodiment is provided.

In order to mount and fix the solar cell module 1F having the above-mentioned structure on a roof having a lot of undulations, for example, a roof with a roof of a roof tile,
In advance, the female screw member 68 is turned to rotate the box-type reinforcing member 6F.
The overall height of the roof tile is adjusted to the height of the roof bar 44. Next, as shown in the same figure, the roof tile 4b, which is the convex portion of the roof surface 4b,
The mounting flanges 34, 34 of the solar cell module 1F are brought into contact with the upper surface of 44, and mounting fixtures 5, 5, such as screws and nails are attached.
Is the mounting holes 34a, 34 of the mounting flanges 34, 34
The solar cell module 1F is mounted and fixed on the roof surface 4b by screwing (or driving) from a, .... At this time,
The box-shaped reinforcing member 6F whose height is adjusted is the roof bar 4
The solar cell panel 2 is reinforced by being brought into contact with the concave surface between the roof 4 and the roof tile 44. According to the structure of the seventh embodiment, it is possible to avoid the troublesomeness of finding the spacer 8, so that the mounting work is simple and quick.

Although the embodiment of the present invention has been described in detail with reference to the drawings, the specific configuration is not limited to this embodiment, and the design may be changed without departing from the scope of the present invention. Is also included in the present invention. For example, the installation surface is not limited to the roof surface 4a of a house or the like. Further, the bottom surface of the box-shaped reinforcement member 6A does not need to be exactly flush with the bottom surface of the mounting flange 34, and a small gap is formed between the bottom surface of the box-shaped reinforcement member 6A and the roof surface (installation surface) 4a. Even if there is, there is no inconvenience as long as it does not affect the strength of the solar cell panel 2.

The reinforcing block member is not limited to the box-type reinforcing member 1A, but may be a block member having no storage portion (terminal box) 61. The block member having no housing 61 is useful for a solar cell module in which the terminal box is arranged at the end of the back surface of the solar cell panel for convenience of design, for example. In the above-described embodiment,
The case where one reinforcing block member is arranged in the central portion of the back surface of the solar cell panel has been described, but a plurality of reinforcing block members may be arranged. Instead of the central portion of the rear surface of the solar cell panel, the reinforcing block member may be provided in the vicinity of the central portion of the rear surface. It may be provided. Similarly, the reinforcing block member is not limited to the central portion or the vicinity of the back surface of the solar cell panel,
You may also add it to the back area.

Even in the conventional solar cell module having no reinforcing block member as described above, at the time of installation, at least the central portion of the back surface of the solar cell panel or its vicinity,
The solar cell panel can be reinforced by adopting a structure in which a single block member or a plurality of block members are inserted between the installation surface or the corresponding portion of the mounting base.

[0040]

As described above, according to the structure of the present invention, the wind load and load applied to the upper surface of the solar cell panel are transmitted to the installation surface such as the roof of the house via the frame. In addition, the power is transmitted to the installation surface via the reinforcing block member, so even if the solar panel is stepped on, or if a large wind pressure acts on the solar panel, It is possible to relieve the maximum stress generated in the bending, and eventually the solar cell panel, and prevent the cracking due to the trampling or the wind pressure. Further, since it is possible to reinforce without using an expensive and complicated mounting surface material for backup, the cost of the solar cell module can be reduced.

Further, the reinforcing block member is provided with a concave portion having an upper surface opening, and in this concave portion, a connecting portion of a lead wire (a solder joint portion between an inner lead wire and a waterproof-coated outer lead wire) and a diode for preventing backflow are provided. If you store it in a sealed state, you do not need an independent dedicated terminal box,
It is possible to further reduce the cost of the solar cell module.

[Brief description of drawings]

FIG. 1 is a vertical sectional view showing the structure of a solar cell module according to a first embodiment of the present invention.

FIG. 2 is a bottom view showing the appearance of the back surface side of the solar cell module.

FIG. 3 is a vertical sectional view showing a roof fixing structure of the solar cell module.

FIG. 4 is a vertical cross-sectional view showing a roof fixing structure for a solar cell module according to a second embodiment of the present invention.

FIG. 5 is a vertical cross-sectional view showing a structure of a solar cell module according to a third embodiment of the present invention and a roof fixing structure.

FIG. 6 is a vertical sectional view showing the structure of a solar cell module according to a fourth embodiment of the present invention.

FIG. 7 is a bottom view showing the appearance of the back surface side of the solar cell module.

FIG. 8 is a bottom view (back surface appearance view) showing a configuration of a solar cell module according to a fifth embodiment of the present invention.

FIG. 9 is a vertical sectional view showing the configuration of a solar cell module according to a sixth embodiment of the present invention.

FIG. 10 is a vertical sectional view showing the structure of a solar cell module according to a seventh embodiment of the present invention and a roof fixing structure.

FIG. 11 is a vertical sectional view showing a configuration of a conventional solar cell module and a roof fixing structure.

FIG. 12 is an explanatory view for explaining a conventional technique, and is a plan view showing a roof surface on which a large number of solar cell modules are arranged.

FIG. 13 is a vertical sectional view showing the structure of another conventional solar cell module and a roof fixing structure.

[Explanation of symbols]

1A, 1B, 1C, 1D, 1E, 1F Solar cell module 2 Solar cell panel 21 Silicon solar cell (solar cell) 22 Transparent glass substrate (transparent substrate) 23 Lead wire 23a Terminal side internal lead wire (internal lead wire) 23b External lead wire 24 Back surface protective cover material 24 25 Filling adhesive 3 Frame body 31 Vertical frame 32 Horizontal frame 33 Standing piece 34 Mounting flange (fixing part, mount fixing part) 34a Mounting hole 4 Roof 4a, 4b Roof surface (installation) Surface 5 Fixing fixture 6A, 6B, 6C, 6D, 6E, 6F Box-type reinforcing material (reinforcing block member) 61, 65, 69 Storage portion (recessed portion of top opening) 62 Filling adhesive (waterproof filling material) 63 rib-shaped leg portion 64 boss-shaped leg portion 66 rubber leg portion (detachable leg portion) 67 male screw member (a part of height adjusting means) 68 female screw member Height part of adjusting means) 7 mounting frame 8 spacer

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Jun Hasegawa, Sekisui Chemical Co., Ltd. 32, Wadai, Tsukuba, Ibaraki Prefecture (72) Inventor Sugita Cycle 22-22, Nagaike-cho, Abeno-ku, Osaka-shi, Osaka (72) Inventor Satoshi Fujii 22-22, Nagaike-cho, Abeno-ku, Osaka-shi, Osaka

Claims (13)

[Claims] 1. A solar cell panel comprising a plurality of solar cells electrically connected to each other via lead wires in a sealed state on a transparent substrate, and the solar cell panel is supported at its ends. A frame body, and at least in the center of the back surface of the solar cell panel or in the vicinity thereof, a single or a plurality of reinforcing block members for supporting the solar cell panel in a reinforcing manner locally or dispersively. A solar cell module characterized by being worn. 2. The frame body has a fixing portion at a lowermost portion thereof, which is abutted and fixed to a predetermined installation surface of the solar cell module by a mounting fixture, and the reinforcing block member has a lowermost portion thereof. The solar cell module according to claim 1, wherein a bottom surface of the solar cell module is set to be substantially flush with a bottom surface of the fixing portion. 3. The frame body has a pedestal fixing portion that is abutted and fixed by a mounting fixture on an upper surface of a mounting pedestal fixed to a predetermined installation surface of the solar cell module, and the reinforcing block member is , When the solar cell module is mounted and fixed on the upper surface of the mounting frame, the bottom surface of the lowermost part thereof is set to be substantially flush with the bottom surface of the mounting frame. 1. The solar cell module according to 1. 4. The solar cell module according to claim 1, wherein the reinforcing block member has height adjusting means. 5. The lower portion of the reinforcing block member is provided with a detachable leg portion that reaches a predetermined installation surface of the solar cell module, according to claim 1, 2, or 3. Solar cell module. 6. The rib-like or boss-like leg portion that reaches a predetermined installation surface of the solar cell module is provided at a lower portion of the reinforcing block member. The solar cell module according to 3 or 4. 7. A lead wire for taking out electric power generated in the solar battery cell is extended to the outside from a side surface of at least one of the reinforcing block members. The solar cell module according to 3, 4, 5 or 6. 8. The reinforcing block member is formed with a concave portion having an upper surface opening, and at least the connecting portion of the lead wire or the backflow preventing diode is housed in the concave portion. Item 7. A solar cell module according to item 7. 9. The solar cell module according to claim 8, wherein the connecting portion or the diode is housed in a recess of the reinforcing block member and sealed with a waterproof filler. 10. The connecting portion is provided with an inner lead wire which is wired in a sealed state in the solar cell panel and a waterproof coating, and extends to the outside via the reinforcing block member. The solar cell module according to claim 8 or 9, which is a connection point with an external lead wire. 11. The solar cell module mounting structure according to claim 1, 2, 3, 4, 5 or 6, wherein the frame is mounted and fixed to the installation surface or the mounting base by a mounting fixture. And a structure in which the reinforcing block member is in contact with or close to a corresponding portion of the installation surface or the mounting base to support the solar cell panel in a reinforcing manner. Module mounting structure. 12. The solar cell module mounting structure according to claim 1, 2, 3, 5 or 6, wherein the frame is mounted and fixed to the installation surface or the mounting base by a mounting fixture. A height adjusting member is inserted in a gap between the reinforcing block member and the corresponding portion of the installation surface or the mounting base, and the solar cell is formed by the reinforcing block member and the height adjusting member. A solar cell module mounting structure characterized by a structure that supports the panel in a reinforcing manner. 13. Mounting of a solar cell module comprising a solar cell panel in which a plurality of solar cells are arranged in a sealed state on a transparent substrate, and a frame body supporting the solar cell panel at its ends. In the structure, the frame is attached and fixed to a predetermined installation surface or a mounting base by a mounting fixture, and at least the central portion of the back surface of the solar cell panel or its vicinity, and the installation surface or the mounting base. A structure for mounting a solar cell module, wherein a single or a plurality of block members are inserted between the corresponding parts to support the solar cell panel in a reinforcing manner.