JPH104207A - Solar cell module, manufacturing method and mounting structure thereof, and roof with solar cell module - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To reduce the on-site construction burden of electric wiring work performed when many solar cell modules are installed in an array on a roof. SOLUTION: The disclosed solar cell module 1A includes:
The plurality of silicon solar cells 21, 21,... Electrically connected to each other via internal lead wires are arranged vertically and horizontally on the back surface of the transparent glass substrate 22, adhered with the filling adhesive 23, and covered with the back surface cover material 24. After forming the solar cell panel 2, the peripheral end of the solar cell panel 2 is sealed with a frame-shaped end sealing member 3, and further, a terminal box 25 is provided at the center of the back surface of the solar cell panel 2. Composed by gluing,
The side wall 31, 31 of the end sealing member 3 is provided with lead wire insertion holes 31a, 31a. The external lead wire 4 extending from the terminal box 25 is inserted into one lead wire insertion hole 31a before installation.

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 according to an improved wiring connection structure, a method for manufacturing and mounting the same, and a roof with a solar cell module.

[0002]

2. Description of the Related Art In recent years, a solar power generation system for houses has been promoted in which a panel-shaped solar cell module is installed on a roof of a house or the like, and power is directly extracted from solar energy and supplied to the house. ing. At present, solar energy is attracting attention because unlike fossil fuels, there is no fear of depletion, and power can be extracted without going through a combustion process, so that there is no problem of destruction of the global environment. By the way, when installing this type of solar cell module on a roof, first, a plurality of special mounts are installed on the roof surface in parallel with each other, and then a plurality of solar cell modules are placed so as to straddle between these mounts. It has been common practice to fix them side by side. In this case, the solar cell modules are connected to each other in series while being connected in series by electric wiring, and are fixed to the gantry, and the terminal electric wiring derived from the solar cell module at the end in the connection direction is guided to the inverter installed indoors. Like that. In this way, the power generated by all the solar cell modules is collected, converted from DC to AC by the inverter, and supplied to the indoor wiring.

[0003] However, conventionally, there has been a problem that these electric wirings are complicated on the roof and hinder the subsequent work, or the electric wirings are exposed to the outside to make the appearance unsightly. . Therefore, as means for resolving such inconvenience, Japanese Patent Laid-Open No. 7-153
No. 985 proposes an inter-module wiring structure. In the wiring structure described in this publication,
An opening is formed in the side wall of the base made of channel steel, and at the installation site on the roof, through the opening formed in the base,
The solar cell modules are interconnected with each other. According to such a wiring structure, since the wiring between the solar cell modules is performed through the opening formed in the gantry, there is no need for detour wiring, and the electric wiring is neatly arranged on the roof surface under the solar cell module. can do.

[0004]

However, in the wiring structure described in the above-mentioned publication, since the wiring work for inserting the electric wiring into the opening formed in the gantry must be performed on the local roof, the solar cell There is a disadvantage that the installation work of the module becomes very complicated. In addition, when a gantry is manufactured using a channel steel, a new hole-punching process is required, so that there is a problem that the manufacturing cost of the gantry increases.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned circumstances, and can reduce the burden of on-site installation of electric wiring, can avoid a high cost of a gantry, and can therefore contribute to a reduction in overall cost. An object of the present invention is to provide a manufacturing method and a mounting structure thereof, and a roof with a solar cell module.

[0006]

According to a first aspect of the present invention, there is provided a solar cell comprising a solar cell disposed on a back surface of a transparent plate and further covered by a back cover material. The present invention relates to a solar cell module in which a peripheral end portion of a panel is sealed with a frame-shaped end sealing member. It is characterized in that a notch for wiring or an opening for wiring is provided for passing electric wiring for extracting electric power from the battery cell.

According to a second aspect of the present invention, there is provided the solar cell module according to the first aspect, wherein the electric wiring is inserted through the wiring notch or the wiring opening.

According to a third aspect of the present invention, there is provided the solar cell module according to the first or second aspect, wherein the end sealing member is a frame-shaped molded body of a polymer compound.

According to a fourth aspect of the present invention, a solar cell is provided on a back surface of a transparent plate, and further covered with a back cover material to form a solar cell panel. To seal the portion with a frame-shaped end sealing member, and to pass electric wiring for extracting electric power from the solar cell, crawling under the solar cell panel, to the side wall of the end sealing member. The present invention relates to a method for manufacturing a solar cell module for completing a solar cell module by forming a wiring notch or a wiring opening of the solar cell module, comprising: a table having an inner surface shape substantially corresponding to an outer surface shape on a front side of the solar cell module; In a mold for injection molding comprising a pair with a back mold having an inner surface shape substantially coinciding with the outer surface shape of the back side of the battery module, the above-mentioned solar module is left in a state in which a cavity is left at a peripheral portion of the mold. Battery panel After placing, the polymer material of the end sealing member is injected into the cavity defined by the mating mold and the solar cell panel, and is shaped and solidified, thereby forming the end sealing member. It is characterized in that the solar cell panel is molded into a frame and the peripheral end of the solar cell panel is sealed with the molded end sealing member.

According to a fifth aspect of the present invention, there is provided a method of manufacturing a solar cell module according to the fourth aspect, wherein a side wall of the end sealing member is formed on a peripheral portion of the back mold. An annular groove is provided, and the annular groove is provided with a shallow bottom portion for forming the wiring notch.

According to a sixth aspect of the present invention, there is provided a method of manufacturing a solar cell module according to the fourth aspect, wherein a side wall of the end sealing member is formed on a peripheral edge of the back mold. An annular groove is provided, and in the annular groove, a pin member for forming the wiring opening protrudes from one groove wall of the annular groove and protrudes into the other groove wall, It is characterized by being detachably inserted.

Further, the invention according to claim 7 is based on claim 4,
According to the method for manufacturing a solar cell module according to 5 or 6,
In the mating mold, a plurality of polymer compounds that cure when mixed with each other are kneaded and injected and shaped and solidified, whereby the end sealing member is formed into a frame shape, and the periphery of the solar cell panel is formed. The end is sealed.

The invention according to claim 8 relates to a mounting structure for a solar cell module, wherein a plurality of long, parallel frames are provided so as to straddle a plurality of long frames.
The solar cell module described above is attached and fixed, and the solar cell modules adjacent to each other are connected to each other through the wiring notch or the wiring opening formed in the side wall of the end sealing member. It is characterized by being connected.

According to a ninth aspect of the present invention, there is provided the solar cell module mounting structure according to the eighth aspect, wherein the long pressing member presses the end sealing member from above, and Each of the solar cell modules is attached and fixed so as to straddle between the pedestals by being fixed to the pedestal with a fixture.

According to a tenth aspect of the present invention, there is provided a solar cell module-equipped roof, wherein the plurality of elongate mounts are arranged on the roof surface in parallel with each other. 3. The solar cell module according to 3 is mounted and fixed, and the adjacent solar cell modules are connected to each other via the wiring notch or the wiring opening formed in the side wall of the end sealing member. It is characterized by being done.

The invention according to claim 11 is the first invention.
According to the roof with the solar cell module described in Item No. 0, each of the solar cells is fixed to the gantry by a fixing member with the long pressing member pressing the end sealing member from above. It is characterized in that the module is attached and fixed so as to straddle between the gantry.

[0017]

The solar cell module according to the present invention (Claims 1 and 2)
Or, in order to manufacture the invention of (3), first, a solar cell is disposed on the back surface of a transparent plate, and further covered with a back cover material to form a solar cell panel. Then, in a mating mold for injection molding, after the solar cell panel is housed in a state in which a cavity is left at the peripheral portion of the mating mold, the above is defined by the mating mold and the solar cell panel. By injecting and shaping the raw material polymer compound into the cavity and solidifying it, the end sealing member is formed into a frame shape to seal the peripheral end of the solar cell panel (the invention according to claim 4). At this time, if an annular groove is provided on the peripheral edge of the back mold constituting the mating die, and a shallow bottom is provided in the annular groove, when the end sealing member is molded, electric power is applied to the side wall thereof. The wiring notch for passing the wiring is formed at the same time (the invention according to claim 5). Further, instead of the shallow bottom portion, if the pin member is provided detachably in a manner of protruding from one groove wall of the annular groove and protruding into the other groove wall, the end sealing member is formed. When
Wiring openings for passing electric wiring are formed in the side wall portions at the same time (the invention according to claim 6).

In the prior art (the technique described in the above-mentioned publication), it was difficult to carry out the wiring work of the solar cell module only after climbing on the roof, but according to the configuration of the present invention, However, since the notch or the wiring opening is provided in the end sealing member, the wiring work can be completed (for example, at a factory) before the solar cell module is lifted on the roof. Therefore, it is possible to reduce the on-site work of electric wiring work when installing a large number of solar cell modules in an array on the roof (Electrical wiring can be passed through the wiring notch if appropriate auxiliary tools are used) Is).
Further, conventionally, it is necessary to perform a punching process for passing electric wiring through the gantry, resulting in an increase in the cost of the gantry. On the other hand, according to the configuration of the present invention, the wiring opening or the wiring notch is formed at the same time as the molding of the end sealing member, so that the productivity is improved and the cost is not increased.

[0019]

Embodiments of the present invention will be described below with reference to the drawings. The description will be specifically made using an embodiment. ◇ configuration diagram of the first embodiment the solar cell module is a diagram showing a configuration of a first solar cell module of an embodiment of the present invention, FIG. (A) is a perspective view front side of the solar cell module is seen FIG. 2B is a perspective view showing the back side of the solar cell module, FIG. 2 is a sectional view taken along the line AA in FIG. 1A, and FIG. 3 is a line BB in FIG. FIG. 4 is a cross-sectional view schematically showing a configuration of a solar cell panel which is a main body of the solar cell module. As shown in FIGS. 1 to 4, a solar cell module 1A of this example includes a plurality of crystalline silicon solar cells 21 and 21 electrically connected to each other via internal lead wires.
... is about 900 to 1,200 mm in horizontal dimension and about 90 in vertical dimension.
After the solar cell panel 2 is formed by arranging vertically and horizontally on a back surface of a transparent glass substrate 22 of 0 mm and sticking with a filling adhesive 23 and covering with a back cover material 24 to form a solar cell panel 2, the peripheral end of the solar cell panel 2 is frame-shaped. , And a terminal box 25 is bonded to the center of the back surface of the solar cell panel 2, and the side wall 3 of the end sealing member 3 is formed.
1, 31 are provided with lead wire insertion holes 31a, 31a for passing the external lead wires 4 extending from the terminal box 25. The transparent glass substrate 22 is made of a white plate tempered glass having a thickness of about 3.2 mm, which is excellent in light transmittance and impact resistance. The filling adhesive 23 is made of E, which is excellent in moisture resistance.
VA (ethylene vinyl acetate) film
As the back cover material 24, for example, a resin-coated metal sheet having a thickness of about 0.1 mm, in which both surfaces of an aluminum sheet are coated with PVF (vinyl fluoride resin) having excellent insulation properties, is preferably used.

The terminal box 25 has a solder joint for connecting an internal lead wire in the solar cell panel 2 and two external lead wires 4 and 4 crawling under the solar cell panel 2 and a backflow preventing member. The diode is housed and sealed with a filling adhesive such as silicone resin. The external lead wires 4 and 4 are waterproof-coated, and male or female waterproof connectors 41 and 42 are attached to the respective ends. The end sealing member 3 is injection-molded as a resin frame having side walls 31, 31,... On the lower four sides in order to also serve as a mounting portion of the solar cell panel 2. ... on the outer side of the lower part, along the longitudinal direction, the locking concave steps 31b, 3
Are provided, and a pair of opposing locking concave steps 31b, 31b,... Are mounted on the upper surface edge of a mounting base described later in a locked state. The lead wire insertion holes 31a, 31a are
42 has a hole diameter (for example, 10 mm) that allows passage of the end sealing member 3, as shown in FIG. 1 and FIG. Parts 31b, 3
1b.

Method for Manufacturing Solar Cell Module FIG. 5 is a perspective view schematically showing the structure of an end sealing member forming die used in the method for manufacturing the solar cell module, and FIG.
FIG. 5A is a view showing the configuration of the mold, and FIG.
FIG. 7B is a cross-sectional view taken along the line D-D in FIG. 5, and FIG. 7 is a view showing a state where the solar cell panel is housed in the same mold, and FIG. Is a cross-sectional view corresponding to FIG. 6A, FIG. 6B is a cross-sectional view corresponding to FIG.
FIG. 8 is a cross-sectional view showing a state in which the liquid resin raw material of the end sealing member is injected into the mold in which the solar cell panel is stored. As shown in FIGS. 5 and 6, a mold 5 for molding an end sealing member (hereinafter referred to as a mating mold) used in the manufacturing method of this example includes a front mold 5a of a solar cell module 1A and a back mold. A panel for holding and holding the solar cell panel 2 in such a manner that the non-peripheral portion (the entire space area excluding the peripheral portion) sandwiches the solar cell panel 2 between the front mold 5a and the back mold 5b. In the storage part 51, the peripheral edge part is a rectangular annular cavity part (casting part) 52 into which the liquid resin raw material of the end sealing member 3 is injected.
It has become. Back mold 5 occupying most of cavity 52
, the side walls 31, 31,... of the end sealing member 3
5 and 6 (b) are provided at predetermined positions of the annular groove 53 on the outer circumferential groove wall and the inner circumferential groove wall. As shown in
Lead member insertion hole 31a, pin member 54 for molding 31a,
54 for detachably fitting 54 with pin fitting holes 53a,
53a are bored with their axes common to each other. In this example, as shown in FIG. 5 to FIG. 8, a pair of pin fitting holes 53a, 53a are respectively provided in opposed groove walls on two sides of the annular groove 53 forming four sides. In addition, the bottom of the annular groove 53 has a step bottom that is deep on the inner peripheral side and shallow on the outer peripheral side in order to form the above-described locking concave step 31b below the end sealing member 3. The back mold 5b and the front mold 5
A gate portion 56 for pouring a liquid resin material kneaded by the mixing head 55 (a two-liquid curable urethane resin material in this example) into the mold is provided at the joint with the point a.

In order to manufacture the solar cell module 1A of this embodiment, first, a plurality of crystalline silicon solar cells 21, 21,... Electrically connected to each other via internal leads.
Are arranged vertically and horizontally on the back surface of a transparent glass substrate 22 such as a white plate reinforced glass, affixed with a filling adhesive 23 such as EVA, and covered with a back cover material 24 such as a resin-coated metal sheet to form a solar cell panel 2 (see FIG. 4). ) Is formed. Next, as shown in FIG. 7, the solar cell panel 2 is housed and held in the panel housing part 51 in the mating mold 5. When the solar cell panel 2 is stored and held in the panel storage part 51, the cavity part 52 in the mating mold 5 includes the solar cell panel 2, the front mold 5a, and the back mold 5b.
And a mold space for molding the end sealing member 3. In addition, as shown in FIG.
Are fitted into the pin fitting holes 53a, 53a,... Of the back mold 5b and pierced through the annular groove 53 in advance.

Thereafter, injection molding of the two-component curable urethane resin raw material is performed. The two-component curable urethane resin raw material is composed of an isocyanate compound (base agent) and a polyol (curing agent), and immediately before being injected into the mold, becomes a liquid kneaded resin composition and is injected into the mold and shaped. You. Here, preferred isocyanate compounds include MDI (diphenylmethane-4,4′-diisocyanate) and TDI (tolylene diisocyanate), and preferred polyols include polyester and polyether. Can be. More specifically, at the time of injection molding, an isocyanate compound (main agent) and a polyol (curing agent) are respectively injected and fed toward the mold 5 from two unillustrated liquid agent feeding units. As shown in FIG. 8, both of them are kneaded by a mixing head 55 to form a liquid kneaded resin composition M. The liquid kneaded resin composition M is guided to the gate 56 of the mating mold 5 while being kneaded by the mixing head 55,
6, while being further kneaded,
Where the chemical reaction proceeds and solidifies.

The liquid kneading resin composition M is supplied to the cavity 52
When the inside is completely solidified, the lid (front mold 5a) is opened, the pin members 54, 54 are pulled out from the pin fitting holes 53a, 53a,. When the mold is removed, the molded product of the end sealing member 3 is obtained in a state of being integrated with the solar cell panel 2, that is, in a state where the peripheral end of the solar cell panel 2 is sealed in a frame shape from the beginning. . Moreover, the end sealing member 3 includes
Since the liquid kneading resin composition M is shaped by the pin members 54, the lead wire insertion holes 31a are drilled. Thereafter, the internal lead wires in the solar cell panel 2 and the two external lead wires 4 and 4 with the male or female waterproof connectors 41 and 42 are connected by soldering. After that, the solder joint and the diode are placed in the terminal box 25. Then, when the terminal box 25 containing these is bonded to the center of the back surface of the solar cell panel 2, the solar cell module 1A is completed.

The mounting structure of the solar cell module 9 is a view showing a roof mounting structure of the solar cell module arranged on both sides two rows, FIG (a) is a sectional view lead wire insertion hole does not appear FIG. 10B is a cross-sectional view showing a lead wire insertion hole, FIG. 10 is a cross-sectional view showing a roof mounting structure of the solar cell modules arranged in one row on one side, and FIGS. FIG. 12 is an exploded perspective view showing the mounting structure of FIG. 10 in an exploded manner, and FIG. 12 is a perspective view showing a roof with a solar cell module adopting the mounting structure. In this embodiment, in the solar cell module 1 having the above configuration,
FIG. 9 shows a mounting member for mounting and fixing A on a roof.
As shown in FIG. 11 to FIG. 11, a long lower frame 61 which is a dedicated mounting base for the solar cell module 1A and a long upper frame 62 which is a pressing member are used. The lower frame 61 has a two-stage configuration in which the center in the width direction is the upper stage and the peripheral edge in the width direction is the lower stage. The upper frame fixing portion 611 provided in the upper center portion and the upper corner portions on both sides of the upper frame fixing portion 611 are provided. A long object composed of a pair of module mounting portions 612 and 612 extending in a vertical direction and a pair of roof fixing portions 613 and 613 extending to a lower stage outside each module mounting portion 612, and is integrally extruded by using a metal such as aluminum as a material. Obtained by molding. Female screw holes N, N,... For fixing the upper frame 62 are screwed at a plurality of locations along the longitudinal direction. Module mounting part 6
On 12, the side wall 31 of the end sealing member 3 constituting an arbitrary side of the solar cell module 1 </ b> A is placed with the locking concave step 31 b abutting on the corner portion. Roof fixing part 6
13, screw holes are provided at a plurality of locations along the longitudinal direction to fix the lower frame 61 itself to the roof with screws B1, B1,.

The upper frames 62a and 62b are long members made of metal such as aluminum and the like, which are paired with the lower frame 61, for fixing the solar cell modules 1A, 1A in two rows on both sides, and one for one side.
There are two types for fixing the solar cell modules in a row.
As shown in FIG. 9, the upper frame 62a is for fixing the solar cell modules 1A, 1A in two rows on both sides. The upper frame 62a is provided on the lower frame fixing portion 621 at the center in the width direction and on both sides of the lower frame fixing portion 621. It consists of a pair of module pressing parts 622 and 622 extending and is obtained by extrusion integral molding. Are screwed into the lower frame fixing portion 621 at positions corresponding to the screw positions of the female screw holes N, N,... Of the lower frame 61. A hole is provided. Each of the module pressing portions 622 is connected to the end sealing member 3 of the solar cell module 1A by the fastening force of the screws B2, B2,.
Is firmly pressed against the module mounting portion 612 of the lower frame 61 to fix it. Also,
As shown in FIG. 10, the upper frame 62b is for fixing the solar cell module 1A in one row on one side, and includes a lower frame fixing portion 621 and a single module holding portion extending to one side of the lower frame fixing portion 621. 622 and cover the lower frame 61,
It consists of a cover-type indicating portion 623 supporting one half of itself, and is obtained by extrusion integral molding.

In order to mount and fix a plurality of solar cell modules 1A on the roof 7 using the lower frame 61 and the upper frame 62 having the above structure, first, as shown in FIG. The required number of frames 61, 61, ... are fried. In this example, the roof 7 is provided with a waterproof sheet 72 such as asphalt roofing on a base plate 71 such as structural plywood, and further covered with a PVC steel sheet (polyvinyl chloride coated steel sheet) 73 to provide a waterproof fireproof structure. It has been. On the roof 7 having such a structure, a plurality of lower frames 61, 61,... Are arranged at a predetermined interval from each other and are arranged in parallel with the rafters 74, and screws are screwed through screw holes of the roof fixing portion 613. B1, B1, ...
Is fixed to the rafter 74 by screwing.

Next, on the ground, a wire passing operation is performed in which only one of the external lead wires 4 is passed through the lead wire insertion hole 31a of the solar cell module 1A. FIG.
(B) shows an example in which only the external lead wire 4 on the male waterproof connector 41 side is inserted into the lead wire insertion hole 31a. The operation of inserting the external lead wires 4 may be performed on the roof 7 or may be performed in advance at the time of manufacturing the solar cell modules 1A, 1A,. In this example, the solar cell module 1
A, 1A,... Are lifted on the roof and placed so as to straddle between long lower frames 61, 61 arranged in parallel with each other.
Specifically, of the four side edges of the solar cell modules 1A, 1A,..., The side with the lead wire insertion holes 31a, 31a faces the lower frame 61, and the lead wire insertion holes 31a, 31a
Locking concave steps 31b, 31b of the end sealing member 3 on the side with
Abuts on the module mounting portion (upper corner portion) 612 of the lower frame 61 so that the end sealing member 3 is mounted on the lower frame 61. As shown in FIG. 9B, for example, after the solar cell modules 1A, 1A,... In the left column are mounted on the lower frame 61, the solar cell modules 1A, 1A,. At this time, the male waterproof connector 41 and the female waterproof connector 42 are connected and placed.

Thus, all the solar cell modules 1
When the mounting of A, 1A,... Is completed, the upper frames 62, 62,.
Are lifted on the roof 7 and the solar cell module 1 is placed on lower frames 61, 61,.
The upper frames 62a, 62b,... Are stacked so as to sandwich the end sealing members 3, 3,. Then, screws B2, B2,... Are passed through the insertion holes of the lower frame fixing portion 621,
Are screwed into female screw holes N, N,... Of the lower frame 61. Due to the generation of the fastening force of the screws B2, B2,..., The end sealing members 3 of the respective solar cell modules 1A are
The module holding portion 622 of 2b strongly presses and fixes the module mounting portion 612 of the lower frame 61. As shown in the figure, the upper frame 62a is used at a connecting portion between the solar cell modules 1A, 1A,... In the left column and the solar cell modules 1A, 1A,.
As shown in FIG. 10, 2b is used at the extreme end of the solar cell array (the unconnected part of the solar cell modules 1A, 1A,...). In this way, as shown in FIG. 12, a solar cell array composed of a number of solar cell modules 1A, 1A,... Connected to each other by the external lead wires 4, 4 is completed on the roof 7.

As described above, according to the structure of this example, the lead wire insertion holes 31a are provided not in the lower frame 61 (dedicated mounting frame) but in the end sealing member 3, so that the solar cell module is provided. ... can be completed (for example, in a factory) before lifting 1A, 1A, ... onto roof 7. Therefore, it is possible to reduce the on-site construction load of electric wiring work performed when many solar cell modules are installed in an array on the roof. Also, the lead wire insertion holes 31a, 31a are formed at the same time as the molding of the end sealing member 3, and the productivity is improved. Therefore, even if the lead wire insertion holes 31a, 31a are provided,
As a whole, it does not incur high costs.

Second Embodiment FIG. 13 is a view showing the structure of a solar cell module according to a second embodiment of the present invention. FIG. 13A is a perspective view in which the front side of the solar cell module can be seen. FIG. 2B is a perspective view showing the back side of the solar cell module. The difference between the solar cell module 1B of this example and the solar cell module 1A of the above-described first embodiment is that a square wire notch 8 for passing the external lead wire 4 is provided instead of the lead wire insertion hole 31a. It is a point. Along with this, the mating mold (not shown) used in this example is significantly different from the mating mold 5 of the first embodiment in that the pin fitting holes 53a and 53 are provided.
.. and the pin members 54, 54 are abolished, and a shallow bottom portion for forming the cutout 8 for the wire is provided in the annular groove instead. According to the configuration of the second embodiment, substantially the same effects as those described in the first embodiment can be obtained. For example, if an auxiliary tool such as an adhesive or a fastener is used, the external lead wire 4 can be passed through the cutout 8 for the wire beforehand. In addition, since the trouble of attaching and removing the pin member to and from the mating mold can be omitted, the operation at the time of molding is simplified.

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 there are design changes and the like that do not depart from the gist of the present invention. Is also included in the present invention. For example, the number of lead wire insertion holes (wiring openings) can be increased or decreased as appropriate, the shape is arbitrary, and the arrangement location can be changed as appropriate.

In the above-described embodiment, the case where a two-component curable urethane resin raw material is used as the material of the end sealing member has been described. However, the present invention is not limited to this. Is also good. Further, not limited to two-component mixed-curable resins, for example, polyethylene, polypropylene, polycarbonate, polyamide, polyacetal, polyethylene terephthalate, chlorinated polyethylene, polystyrene, polyesteramide, polyphenylene sulfide,
Polyetherester, soft polyvinyl chloride, polymethacrylate, polyacrylate, polymethyl methacrylate, fluororesin, sulfone resin, ethylene-vinyl acetate copolymer, vinyl chloride-vinylidene chloride copolymer, polyvinyl butyral, Polyvinylidene fluoride,
Thermoplastic resins such as styrene-acrylic copolymers, thermosetting resins such as silicone resins, urea resins, melia resins, melamine / phenol resins, metal-containing plastics, reinforced resins composited with glass fibers, EPDM (ethylene-
Synthetic rubber such as propylene-diene-terpolymer) can be suitably used according to required performance such as moisture resistance, fire resistance, elasticity, and weather resistance.

The present invention is not limited to a single-crystal silicon solar cell, but may be a polycrystalline silicon solar cell, an amorphous silicon solar cell, a compound semiconductor solar cell, or an organic semiconductor solar cell. good.
The above-mentioned solar cell module is not limited to being mounted on an existing roof, but may be mounted and fixed on a roof panel, a roof unit, or a building unit with a roof in advance in a factory.

[0035]

As described above, according to the configuration of the present invention, the notch or the wiring opening is provided not in the mounting base but in the end sealing member, so that the solar cell module can be mounted on the roof. Before frying, the line work can be completed (eg in a factory). Therefore, it is possible to reduce the on-site construction load of electric wiring work performed when many solar cell modules are installed in an array on the roof. Further, at the same time as the molding of the end sealing member, the wiring notch or the wiring opening is also formed, and the productivity is improved. Therefore, even if the wiring notch or the wiring opening is provided, the cost does not increase as a whole. .

[Brief description of the drawings]

FIGS. 1A and 1B are diagrams showing a configuration of a solar cell module according to a first embodiment of the present invention, in which FIG. 1A is a perspective view in which the front side of the solar cell module can be seen, and FIG. It is a perspective view which can see the back side of a battery module.

FIG. 2 is a cross-sectional view taken along line AA of FIG.

FIG. 3 is a sectional view taken along line BB of FIG. 1 (b).

FIG. 4 is a sectional view schematically showing a configuration of a solar cell panel which is a main body of the solar cell module.

FIG. 5 is a perspective view schematically showing a configuration of an end sealing member molding die used in the method of manufacturing the solar cell module.

6A and 6B are diagrams showing a configuration of the mold, wherein FIG. 6A is a cross-sectional view taken along line CC of FIG. 5, and FIG. 6B is a cross-sectional view taken along line DD of FIG. is there.

FIGS. 7A and 7B are diagrams showing a state where a solar cell panel is housed in the mold, wherein FIG. 7A is a sectional view corresponding to FIG. 6A, and FIG. FIG.

FIG. 8 is a cross-sectional view showing a state where the liquid resin raw material of the end sealing member is injected into the same mold in which the solar cell panel is housed.

9A and 9B are views showing a roof mounting structure of the solar cell modules arranged in two rows on both sides, wherein FIG. 9A is a cross-sectional view in which a lead wire insertion hole does not appear, and FIG. It is sectional drawing in which a line insertion hole appears.

FIG. 10 is a cross-sectional view showing a roof mounting structure of the solar cell modules arranged in one line on one side.

FIG. 11 is an exploded perspective view showing the mounting structure of FIGS. 9 and 10 in an exploded manner.

FIG. 12 is a perspective view showing a roof with a solar cell module employing the mounting structure of FIGS. 9 and 10;

FIGS. 13A and 13B are diagrams showing a configuration of a solar cell module according to a second embodiment of the present invention, wherein FIG. 13A is a perspective view showing the front side of the solar cell module, and FIG. It is a perspective view which can see the back side of a battery module.

[Explanation of symbols]

 Reference Signs List 1A solar cell module 2 solar cell panel 21 silicon solar cell (solar cell) 22 transparent glass substrate (transparent plate) 24 back cover material 25 terminal box 3 end sealing member 31 side wall (side wall) 31a lead wire insertion hole (Opening for wiring) 4 External lead wire (Electrical wiring) 41 Male waterproof connector 42 Female waterproof connector 5 Mold for molding the end sealing member (Mold) 5a Front mold 5b Back mold 51 Panel storage section 52 Cavity part (cavity) 53 Annular groove 53a Pin fitting hole 54 Pin member 55 Mixing head 56 Gate part M Liquid kneading resin composition (polymer raw material) 61 Lower frame (long frame) 612 Module mounting part 613 Roof Fixing portions 62a, 62b Upper frame (long holding member) 622 Module holding portion B1, B2 Screw (fixing tool) 7 Notch for an 8-mails line root (cut-out for wiring)

 ──────────────────────────────────────────────────の Continuing on the front page (72) Inventor Jun Hasegawa 32 Wadai, Tsukuba, Ibaraki Sekisui Chemical Co., Ltd. (72) Shota Moriuchi 22-22 Nagaikecho, Abeno-ku, Osaka-shi, Osaka Sharp Corporation (72) Inventor Shigeru Sugita 22-22 Nagaikecho, Abeno-ku, Osaka City, Osaka Inside Sharp Corporation (72) Inventor Tetsu Fujii 22-22 Nagaikecho, Abeno-ku, Osaka City, Osaka Sharp Corporation (72) Invention Person Satoshi Tanaka 22-22 Nagaikecho, Abeno-ku, Osaka City, Osaka Inside Sharp Corporation

Claims (11)

[Claims] 1. A solar cell panel having a solar cell disposed on a back surface of a transparent plate and further covered with a back cover material, the peripheral end of which is sealed with a frame-shaped end sealing member. A solar cell module, wherein a wiring notch or a wiring opening for passing an electric wiring for extracting electric power from the solar cell by crawling under the solar cell module on a side wall portion of the end sealing member. The solar cell module characterized by being provided with. 2. The electric wire is inserted through the notch for wiring or the opening for wiring.
The solar cell module as described. 3. The solar cell module according to claim 1, wherein the end sealing member is a frame-shaped molded body of a polymer compound. 4. A photovoltaic cell is disposed on a back surface of a transparent plate,
Furthermore, after forming a solar cell panel by covering with a back cover material, the peripheral end of the solar cell panel is sealed with a frame-type end sealing member, and the side wall of the end sealing member is sealed. A method for manufacturing a solar cell module, in which a solar cell module is completed by crawling under the solar cell panel and forming a wiring cutout or a wiring opening for passing electric wiring for extracting electric power from the solar cell. An injection mold comprising a pair of a front mold having an inner surface shape substantially matching the outer surface shape of the front side of the solar cell module and a back mold having an inner surface shape substantially matching the outer surface shape of the back side of the solar cell module. After the solar cell panel is stored in a state where a cavity is left at a peripheral portion of the mating mold in the mating mold, the cavity defined by the mating mold and the solar cell panel is formed. The polymer material of the end sealing member is injected, shaped and solidified to form the end sealing member into a frame shape, and the solar cell panel is formed by the formed end sealing member. A method for manufacturing a solar cell module, wherein a peripheral end of the solar cell module is sealed. 5. An annular groove for forming a side wall of the end sealing member is provided in a peripheral edge of the back mold,
The method for manufacturing a solar cell module according to claim 4, wherein the annular groove is provided with a shallow portion for forming the wiring notch. 6. An annular groove for forming a side wall of the end sealing member is provided in a peripheral portion of the back mold,
A pin member for forming the wiring opening is removably pierced through the annular groove so as to protrude from one groove wall of the annular groove and penetrate the other groove wall. The method for manufacturing a solar cell module according to claim 4, wherein: 7. The end sealing member is formed into a frame shape by mixing and injecting a plurality of polymer compounds that cure when mixed with each other into the mating mold and solidifying by shaping. 7. The method for manufacturing a solar cell module according to claim 4, wherein a peripheral end of the solar cell panel is sealed. 8. A plurality of solar cell modules according to claim 1, 2 or 3, which are attached and fixed so as to straddle between long frames which are arranged in parallel with each other, and wherein said solar cells are adjacent to each other. A mounting structure for a solar cell module, wherein modules are connected to each other via the wiring cutout or the wiring opening formed in a side wall of the end sealing member. 9. The solar cell module straddles between the pedestals by fixing the long sealing member to the gantry with the end sealing member pressed from above from above. The mounting structure for a solar cell module according to claim 8, wherein the mounting structure is fixed in such a manner. 10. A plurality of solar cell modules according to claim 1, 2, or 3, which are attached and fixed so as to straddle between elongate bases arranged in parallel with each other on a roof surface.
The solar cell modules adjacent to each other are connected by wiring via the wiring notch or the wiring opening formed in the side wall of the end sealing member, and are provided with a solar cell module. Roof. 11. A long pressing member is fixed to the gantry with a fixture while pressing the end sealing member from above, so that each of the solar cell modules straddles the gantry. The roof with a solar cell module according to claim 10, wherein the roof is attached and fixed as described above.