JPS6046060A - Installing method of solar battery module - Google Patents

Abstract

PURPOSE:To enable to simply mount a module which has no holes for mounting on a trestle by engaging the edge of the module with recesses of opposed trestles. CONSTITUTION:A solar battery cell 1 is buried in a transparent resin 2, the surface is covered with a cover glass 3, and the back surface is covered with a back surface protecting plate 4, the side faces are engaged with a groove of a frame 10 through a sealing agent 5, and the frame 10 is engaged with the grooves of the trestle 20. In order to engage the module to the groove of the recess of the trestle 20, the modules is merely slid along the groove of the trestle 20 associated in advance in a framework. Therefore, the mounting can be very simply and readily performed.

Description

[Detailed description of the invention] Industrial applications The present invention relates to a method for constructing a solar cell module.

Conventional configurations and their problems Solar cells are attracting attention because they can easily extract electrical energy directly from the infinite amount of clean solar energy. In order to manufacture solar cells as cheaply as possible, various types of solar cell elements are being researched and developed. One way to lower the cost of solar cells is to use fewer materials. One way to do this is to increase the conversion efficiency, but one way is to increase the area. If a solar cell element with the same conversion efficiency can be obtained with the same process cost and process time,
This is natural since production efficiency increases as the area increases, but another thing that cannot be overlooked is that the cost of arranging, connecting, and assembling modules into modules can also be reduced.

Now, a single crystal silicon solar cell element is 3 inches.

Using 4-inch and 5-inch silicon wafers, the device area is gradually increasing. Efforts have been made and are being made to increase the area of both ribbon silicon solar cell elements and amorphous silicon (a-3t) solar cell elements.

The same applies to CdS/CdTe solar cell elements. In the CdS/CdTe solar cell element,
Recently, substrates with an area of 30 cnL x 30 have been manufactured using a method of manufacturing. Once a solar cell element of this size is manufactured, unlike conventional modules, it is no longer unreasonable to construct one module from elements on one substrate. In fact, it becomes unreasonable to connect them to create a larger module.

Through the process described above, it is possible to make one module from the elements of one board, and we are heading towards making one, but in such a case, the problem is how to make the module and how to attach it to the mount. It has become.

Conventional solar cell modules have multiple elements arranged and connected to form a single module.
It was assembled into a large module, for example 1.2m x 0.4m.

The method for attaching this to a pedestal was to drill a hole in the frame of the module, pass a bolt between the hole in the pedestal and the hole in the module, and tighten it with a nut.

FIG. 1 is a sectional view of a main part of a conventional solar cell module installed on a pedestal. Solar cell element 1 is made of transparent resin 2
The front surface is covered with a cover glass 3 and the back surface is covered with a back protection plate 4. The side surface is fitted into a groove of the frame 10 with a sealant 5 interposed therebetween. The frame body 10 is an example where the frame body 10 is used in the longitudinal direction of the solar cell module, and since the frame body 10 is quite long, for example, 1.2 m, the frame body 10 and the mounting hole 11 are used to provide mechanical strength. In order to provide this, the back side of the solar cell has a special hollow shape (pipe shape). A hole 11 and a hole 2 are provided at precise positions in the lower end of the frame 10 and the upper end of the pedestal 20, respectively.
1 is provided, a bolt 15 is passed through it, a nut 16 is tightened, and the solar cell module is mounted on a pedestal 20.
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ing.

In this conventional method, first of all, regarding the solar cell module side, it was necessary to provide mounting holes in the module frame. In order to provide this mounting hole, it is necessary to design the shape of the frame in such a manner, which has the disadvantage of increasing costs. As for the pedestal side, it was necessary to provide a hole that matched the hole described above. Since it was necessary to pass the bolt through both holes, the drilling process had the disadvantage of requiring dimensional precision. In addition, mounts are generally inclined to receive sunlight vertically, but when a solar cell module is placed on this slanted mount, there is a force that tends to cause it to slide off. Align the hole and insert the bolt into the hole.

Purpose of the Invention The present invention aims to provide a method for installing a solar cell module that can be easily installed even in modules that do not have holes for installation on a pedestal, so to speak, omitting the installation part. It is something to do.

Structure of the Invention The present invention is a method for constructing a solar cell module, characterized in that the edges of the solar cell module are fitted into recessed portions of opposing mounts. Another method is to fit the solar cell module into a mount frame with a recessed part, and then attach the mount frame to a stand below it.

DESCRIPTION OF EMBODIMENTS The present invention will be explained based on embodiments. Note that the same parts as in FIG. 1 showing the conventional example are given the same numbers.

(Example 1) FIG. 2 is a detailed explanation of the present invention, and is a sectional view of the main parts of a solar cell module and a frame constructed by the construction method of the present invention. A solar cell element 1 is embedded in a transparent resin 2, covered with a cover glass 3 on the front surface, a back protection plate 4 on the back surface, and fitted into a groove of a frame 10 with a sealant 5 on the side surfaces. The frame 10 of this solar cell module is fitted into the groove of the pedestal 20. Although the right side of FIG. 2 is omitted, it is similar to the left side.

In order to fit the solar cell module into the groove, which is the recessed part of the pedestal, all you have to do is slide the module along the 2° groove of the pedestal, which is pre-framed, so the installation is much easier than with the conventional method. Simple and easy. That is, in this method, the module can be easily installed by simply setting the intervals between the grooves accurately, whereas in the conventional method, it is only necessary to install mounting holes 11 in the frame 10 of the module. Therefore, it was necessary to make the position of the hole 11 accurate. Similarly, holes 21 are placed in the exact position on the pedestal 20.
It was necessary to provide bolts 15 and 15, aligning their exact positions and holding them so that they would not slip.
Inserting it into hole 11.21 was not an easy task. Although not shown, in the present invention, the module at the end is of course provided with a stopper to prevent it from slipping off.

(Embodiment 2) Figures 3 and 4 are for illustration only of the second embodiment of the present invention. Figure 3 is a perspective view of the mount frame used in the second embodiment, and Figure 4 is FIG. 3 is a perspective view of the mount frame being attached to the mount together with the solar cell module. The pedestal frame 3o shown in FIG. 3 is a long object with an engineering-shaped cross section, and a plurality of holes 31 are provided in the lower part thereof. The construction method will be described with reference to FIG. 4. The first mount frame 30A is fixed to a mount 40 made of wood that has been properly assembled and subjected to antiseptic treatment. Fixation is carried out by passing nails or screws into holes 31 provided in the pedestal frame 30A. Next, the solar cell module A is fitted and held in the groove-shaped recesses of the first mount frame 30A and the second mount frame 30B. In this state, the second mount frame 30B is not fixed to the mount 40, so the second mount frame 30B is fixed in this state, that is, with the solar cell module A tightly sandwiched therebetween. In this case as well, it is fixed by driving a nail into the hole 31 or screwing in a screw. By performing this work in sequence, the solar cell module can be easily and reliably installed.

This construction method is similar to the first embodiment in that the module is fitted into the recessed part of the frame frame 30, but the recessed parts on both sides are not fixed in advance at an accurate interval, and one side of the module is placed in the first The module can be more easily constructed by fitting the module into the recess, applying the second recess to the remaining side, and fixing it in that state. Solar cells are generally used in places where normal electricity is not supplied. This second embodiment is used in countries and regions where wood is abundant, and a rough mount is constructed in advance from wood, and then the mount frame is installed in a solar cell. Because it is simply fixed along the actual battery, precision and
Not only does it have the advantage of not requiring precise drilling or processing, but it also has the advantage of being easy to erect and making effective use of local materials.

The mount frames 30A, 30B, etc. of this second embodiment can be easily manufactured by only extrusion processing and drilling. Since the module is simply fitted into the recess, there is no need to provide a hole for installing the module, which has the effect of simplifying the frame of the module. Similarly, there is no need to provide a hole for the pedestal, and precise machining is omitted. When installing the module on a pedestal, simply fit it into the recess of the opposing pedestal, so there is no need to hold it in a specific position on the slanted pedestal and insert bolts, making it easy to erect the module. can do. If you fit the module into a mount frame with a recessed part and then attach the mount frame to the base below it, the spacing between the mount frames can be adjusted to match the actual module. This has the advantage that there is no need to assemble a precise mount or mount frame in advance. Furthermore, since there is no play, there is no wobbling of the module after installation. Furthermore, with this construction method, it is possible to assemble the platform using wood that is abundant in the area, so it is possible to build a platform in high mountains without electricity.

It is very convenient for use in mountainous areas and developing countries.

Afternoon

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view of the main parts of a conventional solar cell module installed on a pedestal using a conventional construction method, and FIG. 2 is a sectional view of a solar cell module and a mount constructed using the construction method of the first embodiment of the present invention. FIG. 3 is a perspective view of the mount frame used in the second embodiment of the present invention, and FIG. 4 is a perspective view of the mount frame in the same embodiment when it is attached to the mount together with the solar cell module. It is a diagram. 1...Solar cell element, 2...Transparent resin, 3...Cover glass, 4...Back protection plate, 5...Sealing Agent, 1o...
Frame, 11, 21... Hole, 2゜... Frame, 15... Bolt, 16... Nut, 30... Frame Frame, 31... Hole, 40
...... trestle. Name of agent: Patent attorney Toshio Nakao and 1 other person @1
figure

Claims (1)

[Claims] (1) A method for constructing a solar cell module, which comprises fitting the edge of the solar cell module into a recessed portion of a mount that is fixed to face each other. (Rumor) A solar cell module installation method O characterized by fitting the edge of the solar cell module into a mount frame having a recessed portion, and then attaching the mount frame in that state to a stand below the mount frame. A method for constructing a solar cell module according to claim 2, characterized in that a single-character-shaped mount frame is provided with a plurality of holes so that the mount frame can be attached to a lower pedestal with nails or screws. .