JP2005019507A - Method of manufacturing solar cell module - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method of manufacturing a solar cell module which easily mounts and fixes a frame member on the periphery of a solar cell panel without requiring a special mechanical installation, member processing, etc. <P>SOLUTION: The solar cell module (1) is composed of: the solar cell panel (6) integrally laminating a surface glass (2), solar cells (3), and a back sheet (4); and the frame member (8) fixed to the periphery of the solar cell panel (6). The method of manufacturing the solar cell module (1) comprises processes of: temporarily fixing the surface glass (2), the solar cells (3), and the back sheet (4) with an adhesive agent (5) respectively; applying a high-temperature curing waterproofing agent (7) on the side edges of the temporarily fixed solar cell panel (6); fitting the side edges of the solar cell panel (6) into the grooves of the frame members (8) nearly U-shaped in cross section; and curing the adhesive agent (5) and the waterproofing agent (7) at the same time, by heating the solar cell panel (6) and the frame member (8) located around the solar cell panel (6). <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
BACKGROUND OF THE INVENTION
The invention of this application relates to a method for manufacturing a solar cell module. More specifically, the invention of this application relates to a method for manufacturing a solar cell module in which an outer peripheral frame member can be easily fixed in an assembly operation of the solar cell module.
[0002]
[Prior art]
Conventionally, solar cell modules have been used as power supply equipment for houses, buildings, and the like. This solar cell module has a structure in which a frame member is fixed to the outer periphery of a solar electric panel in which surface glass, a solar cell, and a back sheet are laminated and integrated with an adhesive. In the case of manufacturing such a solar cell panel, conventionally, a waterproofing agent is applied to the periphery of the solar cell panel and cured, and then the solar cell panel is installed in a large frame machine to attach the frame member to the outer frame. As installed and assembled.
[0003]
As the frame member, for example, generally, two right-angle frame members that are in contact with two adjacent sides of the solar cell panel are used as an outer peripheral frame. At that time, the end portions of the respective frame members are cut and brought into contact with each other at an angle of about 45 °. Alternatively, a frame (Patent Document 1) of a solar cell module in which one frame material is bent and molded as a frame-like frame is also known. This frame has cut-out parts formed at positions corresponding to the three corners of the solar cell panel. The frame is bent at an angle of about 90 ° and attached to the periphery of the solar cell panel. It is screwed at the part to become a frame of the solar cell module.
[0004]
[Patent Document 1]
Japanese Patent Laid-Open No. 10-308522
[Problems to be solved by the invention]
However, in the solar cell module manufacturing method as described above, the frame member and the solar cell panel are physically fitted with each other, so that a large frame machine is required as described above, and thus a dedicated frame process is required. As a result, there was a problem that the cost was increased. Further, the material of the frame member is also limited to a material having a strength that can withstand the mounting force (mechanical force) of such a large frame machine. Furthermore, when the frame member is mounted using the large frame machine, there is a risk that the surface glass of the solar cell panel is broken.
[0006]
Further, in the case of the frame of Patent Document 1, there is a problem that it is necessary to process and form the notch portion, so that the member removal is poor, the processing cost is increased, and the cost is increased. Furthermore, since the conventional frame member including the frame of Patent Document 1 is not provided with a drain hole, there is a problem that it is necessary to perform a drain hole process separately.
[0007]
Accordingly, the invention of this application has been made in view of the circumstances as described above, solves the conventional problems, and does not require special mechanical equipment or member processing, and allows the frame member to be easily attached to the sun. It is an object of the present invention to provide a method for manufacturing a solar cell module that can be attached and fixed to the outer periphery of a battery panel.
[0008]
[Means for Solving the Problems]
As a means for solving the above-mentioned problems, the invention of this application firstly manufactures a solar cell module in which a frame member is fixed to the outer periphery of a solar cell panel in which a surface glass, a solar cell, and a backsheet are laminated and integrated. In this method, each of the surface glass, the solar cell, and the back sheet is temporarily fixed with an adhesive, and a high-temperature curable waterproofing agent is applied to each edge of the temporarily fixed solar cell panel. A solar cell characterized in that each edge portion of the solar cell panel is inserted into a groove of the U-shaped frame member, and the solar cell panel and the outer peripheral frame member are heated to simultaneously cure the adhesive and the waterproofing agent. A method for manufacturing a module is provided.
[0009]
In addition, the invention of this application provides, secondly, a manufacturing method in which the end of the frame member forming the outer peripheral corner of the solar cell module is fixed by an L-shaped coupling piece, and thirdly, the frame Provided is a manufacturing method for fitting an L-shaped coupling piece into a notch groove on an end surface of a member.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
The invention of this application has the features as described above. Hereinafter, the embodiment will be described in detail.
[0011]
FIG. 1 is a process diagram illustrating the manufacturing method of the present invention. In the process illustrated in FIG. 1, first, a surface glass (2) -adhesive (5) -a plurality of solar cells (3) -adhesive (5) -back sheet (4) are laminated and heated. A solar cell panel (6) in which the surface glass (1), the solar cell (3), and the back sheet (4) are temporarily fixed is manufactured by performing the pressure treatment (step a). Next, a waterproofing agent (7) is applied to the entire periphery of the edge of the temporarily fixed solar cell panel (6) (step b), and the solar cell panel (6) is inserted into the groove of the substantially U-shaped frame member (8). Each edge portion is fitted (step c). Finally, the solar cell panel (6) and the frame member (8) are heat-dried to simultaneously cure the adhesive (5) and the waterproofing agent (7) (step d). That is, each member of the solar cell panel (6) is bonded and fixed by curing the adhesive (5), and the frame member (8) is attached to the outer periphery of the solar cell panel (6) by curing the waterproofing agent (7). The solar cell module (1) is completed by mounting and fixing.
[0012]
By the above method, a solar cell module (1) can be manufactured by a simple process without requiring a large frame machine or the like.
[0013]
Since the solar cell module (1) manufactured by the inventive method of this application is often installed outdoors for its intended purpose, the surface glass (2) is excellent in durability against strong wind and rain and temperature changes. Rigid hard glass or the like is preferable. The type of the adhesive (5) is not particularly limited as long as the adhesive (5) has an adhesive force capable of temporarily fixing and fixing each member by the heat and pressure treatment in the step a. For example, ethylene vinyl acetate (EVA) which is a kind of adhesive resin can be used. When this EVA is used, the heating and pressurizing treatment can be performed at about 120 to 160 ° C. As the waterproofing agent (7), a waterproofing agent that is waterproof and hardened by the heat drying treatment in step d can be used as appropriate. For example, high temperature curing type silicon or the like can be used, and in that case, the heat drying treatment can be performed at about 130 to 160 ° C. In addition, it is preferable to apply | coat a waterproofing agent (7) to the lower side of the edge part of a solar cell panel (6) so that it may not leak to the surface glass (2) side, also illustrated in FIG. . If the waterproofing agent (7) leaks to the surface glass (2) side, not only the appearance is impaired, but also the amount of sunlight irradiated to the solar cell (3) is lowered, and the performance of the solar cell module is lowered, which is not preferable.
[0014]
Further, as the frame member (8) used in the manufacturing method of the invention of this application, for example, a bent product of metal material such as aluminum, aluminum alloy, stainless steel, or an extruded product can be used.
[0015]
FIG. 2 is an exploded plan view illustrating the relationship between the solar cell panel (6) and the frame member (7) in the manufacturing method of the invention of this application.
[0016]
As illustrated in FIG. 2, in the manufacturing method of the present invention, four substantially U-shaped frame members (8) that are respectively inserted into the four edge portions of the solar cell panel (6) are used. The frame member (8) is longer than, for example, a pair of frame members (81) having the same length dimension (a) as the long side of the solar cell panel (6) and the short side of the solar cell panel (6). A pair of frame members (82) having the dimension (b) can be used. In this case, the dimension (b) of the frame member (82) is “the short side dimension of the solar cell panel (6)” + “the thickness dimension of the frame member (81) × 2”. With such frame members (81) (82), the outer peripheral corners of the solar cell module (1) can be all right angles. Then, while maintaining the state in which the respective edge portions of the solar cell panel (6) are fitted into the frame members (81) and (82) in this way, the waterproofing agent (7) is cured by heat drying treatment. The frame members (81) and (82) can be attached and fixed to the outer periphery of the solar cell panel (6).
[0017]
In addition, in order to hold | maintain the state which each edge part of the solar cell panel (6) was each fitted in the frame member (81) (82), the method of temporarily fixing both with an adhesive tape etc., for example Although it can be employed, it is preferably done according to the second invention of this application. That is, in the method of the second invention of this application, the ends of the frame members (81) and (82) forming the right-angled outer peripheral corners of the solar cell module are fixed by the L-shaped coupling piece (9). As a result, the four frame members (81) and (82) are connected to each other, and the subsequent heat drying process can be performed more simply and accurately. Further, when an electrically conductive metal material is used as the L-shaped coupling piece (9), these can also be used as a ground connection portion.
[0018]
The L-shaped coupling piece (9) is fixed by, for example, bringing the L-shaped coupling piece (9) into contact with the outside of the right-angled portion formed by the ends of the frame members (81) and (82), and using screws or the like. Although a method of fixing to the frame member (8) can be adopted, a preferred method is to fix the L-shaped coupling piece (9) to the frame member (8) according to the third invention of this application. Can do.
[0019]
That is, according to the method of the third invention, the L-shaped coupling pieces (9) are respectively fitted into the notch grooves (10) formed on the end surface of the frame member (8), whereby the frame member (8) This is a method of fixing the right angle portion. Fixing with screws or the like is unnecessary, and most of the L-shaped coupling piece (9) is hidden inside the frame member (8), which is preferable in terms of appearance.
[0020]
Specifically, the solar cell panel (6) and the frame members (81) (82) can be assembled using the L-shaped coupling piece (9), for example, by the following procedure. First, as illustrated in FIG. 3, the L-shaped coupling piece piece 91 is fitted into the notch groove portion 10 of the frame member 82 on the short side of the solar cell panel 6. Next, as illustrated in FIG. 4, the long side of the solar cell panel (6) is fitted into the U-shaped cross section (11) of the frame member (81), and finally, the L-shaped coupling piece (9). The short side of the solar cell panel (6) is inserted into the U-shaped groove (11) of the cross-section of the frame member (82) while the one part (92) of the frame is fitted into the notched groove (10) of the frame member (81). Let Thus, as shown in FIG. 5, with the frame members (81) and (82) attached to the outer periphery of the solar cell panel (6), the end portions of the frame members (81) and (82) are respectively connected in an L shape. Secure with piece (9).
[0021]
In addition, as shown in the side view of FIG. 5, the L-shaped coupling piece (9) may have a vertical width that opens the lower side of the U-shaped groove (11) in the cross section of the frame member (8). preferable. As a result, water drainage openings (12) can be formed at four locations on the outer peripheral frame member of the solar cell module.
[0022]
Of course, the invention of this application is not limited by the above examples, and it goes without saying that various aspects are possible in detail.
[0023]
【The invention's effect】
As described in detail above, the invention of this application provides a method for manufacturing a solar cell module that can easily attach and fix the frame member to the outer periphery of the solar cell panel without requiring special mechanical equipment or member processing. Is done.
[Brief description of the drawings]
FIG. 1 is a process diagram illustrating a production method of the present invention.
FIG. 2 is an exploded plan view illustrating the relationship between a solar cell panel and a frame member in the manufacturing method of the present invention.
FIG. 3 is an exploded perspective view of an essential part illustrating the coupling of an L-shaped coupling piece to one frame member.
FIG. 4 is an exploded perspective view of a main part illustrating a state in which an L-shaped coupling piece coupled to one frame member is coupled to the other frame member.
FIGS. 5A and 5B are a plan view (upper side) and a side view (lower side) illustrating an attachment state of a frame member in a solar cell module. FIGS.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Solar cell module 2 Surface glass 3 Solar cell 4 Back sheet 5 Adhesive 6 Solar cell panel 7 Waterproof agent 8, 81, 82 Cross-sectional substantially U-shaped frame member 9 L-shaped coupling piece 91, 92 Single part 10 Notch groove part 11 Cross-section U-shaped groove 12 Drain opening

Claims (3)

A method for manufacturing a solar cell module in which a frame member is fixed to the outer periphery of a solar cell panel in which surface glass, a solar cell, and a back sheet are laminated and integrated, wherein each of the surface glass, the solar cell, and the back sheet is temporarily bonded with an adhesive. Fasten and fix, apply a high-temperature curable waterproofing agent to each edge of the temporarily fixed solar cell panel, and insert each edge of the solar cell panel into the groove of the substantially U-shaped frame member. A method for producing a solar cell module, comprising heating a solar cell panel and a frame member on an outer periphery thereof to simultaneously cure an adhesive and a waterproofing agent. The manufacturing method of Claim 1 which fixes the edge part of the frame member which forms the outer periphery corner | angular part of a solar cell module with an L-shaped coupling piece. The manufacturing method of Claim 2 which fits an L-shaped coupling piece in the notch groove of the edge surface of a frame member.

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