JP4020552B2 - Solar cell packaging structure - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a solar cell packaging structure.
[0002]
[Prior art]
A storage structure as a conventional shipping structure for solar cells is disclosed in, for example, Japanese Utility Model Publication No. 5-30368. This storage structure uses a pallet having a plurality of concave storage portions, and stores plate-like solar cells in the concave storage portions.
[0003]
[Problems to be solved by the invention]
In such a conventional storage structure, when measuring the characteristics of the solar cell about whether the solar cell operates properly before shipment or after receiving the storage structure, one by one. It was necessary to measure.
[0004]
The present invention has been made to solve such problems, and an object thereof is to provide a packaging structure capable of easily measuring the characteristics of a solar cell.
[0005]
[Means for Solving the Problems]
The configuration of the present invention includes a plate-like solar cell having an output terminal on the opposite surface of the light incident surface, and a plate body for fixing the solar cell detachably using an adhesive on the opposite surface of the solar cell; In the state where the solar cell is fixed to the plate body, an opening is provided in a portion of the plate body facing the output terminal.
[0006]
Furthermore, the configuration of the present invention is characterized in that when the solar cell is separated from the plate body, the adhesive is attached to the solar cell.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of the present invention will be described in detail with reference to FIGS. FIG. 1 is a perspective view showing a solar cell 1 to be packaged, wherein 2 is an insulating translucent substrate such as glass, and 3 is an output from a power generation film made of a transparent conductive film, an amorphous silicon film, and a metal electrode film. The output terminal 4 is a protective film made of a resin material that covers the power generation film and exposes the output terminal 2. As the material of the output terminal 3, a transparent conductive film, a metal film, a copper paste film, or the like can be adopted. Here, the copper paste film can be used for normal soldering on a glass substrate, and is composed of a phenolic resin as a binder mixed with copper powder having a particle size of about 5 to 7 μm at a weight ratio of about 90%. After patterning by screen printing, it is cured by heat treatment. In this solar cell 1, the light incident surface is the surface of the substrate 2 (the lower surface in FIG. 1), and the output terminal 3 is located on the opposite surface.
[0008]
FIG. 2 is a perspective view showing the packaging structure of the present embodiment. Reference numeral 10 denotes a rectangular plate-like plate made of plastic, cardboard, etc. As shown in FIG. Are fixed with the substrate 2 as the light incident surface facing upward.
[0009]
As shown in FIG. 3 (= A-A cross-sectional view in FIG. 2), the solar cell 1 has an adhesive such as butyl rubber between the protective film 4 on the opposite side and the surface of the plate body 10. 11 is fixed. Here, the adhesive 11 is made of a slightly adhesive material so that the solar cell 1 can be detachably attached.
[0010]
Moreover, the plate 10 has a shape in which the openings 12, 12... Are located in the portion of the plate 11 that faces the output terminal 3 of the solar cell 1.
[0011]
In this embodiment, the packaging structure is as described above, and the output terminals 3 and 3 of the solar cell 1 are exposed at the openings 12 and 12 of the plate 10. Then, the measurement terminal can be applied to the output terminals 3 and 3 and the monitor light can be incident on the light incident surface of the solar cell 1 to perform the characteristic measurement. Similarly, characteristic measurement can be performed for a plurality of other solar cells 1, 1, 1. In other words, since the characteristics can be measured in the packaged state, it is not necessary to measure each one individually as in the conventional case, so that the work related to the measurement is easy. Moreover, since the light incident surface of the solar cell 1 faces upward, visual inspection for defects such as scratches and chips on the surface of the substrate 2 of the solar cell 1 can be efficiently performed.
[0012]
2 can be prepared and shipped in a stacked state as shown in FIG. In the stacked storage state of FIG. 4, the number of solar cells stored per unit volume is large as compared with a storage structure using a conventional pallet.
[0013]
Furthermore, the user who has received the packaging structure of the present embodiment can efficiently perform the characteristic measurement and the appearance inspection in the same manner as before shipping. The adhesive 11 is slightly adhesive and can easily separate the solar cell 1 from the plate 10.
[0014]
Further, in this embodiment, when the solar cell 1 is separated, the material and surface state of the plate 10, the type of the adhesive material 11, the sun so that the adhesive 6 adheres to the protective film 4 side of the solar cell 1. The type of the protective film 4 of the battery 1 can be selected. For example, in the present embodiment, a plastic material having a smooth surface is used for the plate 10 and the adhesive 11 is attached to the solar cell 1 side, so that the solar cell 1 is incorporated in an electronic device such as a calculator. In this case, the solar cell 1 can be bonded and fixed inside the electronic device with the adhesive 11.
[0015]
Further, during the transportation of the present embodiment, since the solar cell 1 is fixed to the plate body 10 through the adhesive material 11, the solar cell 1 is less likely to vibrate with respect to the plate body 11, so Is less likely to occur. Therefore, it is possible to suppress the occurrence of damage such as a short circuit of the power generation film due to static electricity.
[0016]
And since the output terminal 3 of the solar cell 1 will be located in the opening 12, it can maintain a clean state, without vibrating during output and the output terminal 3 rubbing. Therefore, when the lead wire is soldered to the output terminal 3 after transportation, problems such as the output terminal being rubbed and soiled, not being soldered, or having low soldering strength are less likely to occur. Further, even when electrical connection is made to the output terminal 3 using a so-called heat seal, the output terminal is not rubbed and soiled. Can connect.
[0017]
Further, in the packaging structure of the present embodiment shown in FIG. 2, the output terminal 3 of the solar cell 1 is positioned in the opening 12, so that if a lead wire is connected to the output terminal 3 through the opening 12, a plurality of terminals are provided. It is also possible to efficiently connect the lead wire to the solar cell.
[0018]
【The invention's effect】
In the present invention, since the output terminal of the solar cell is located at the opening of the plate body and is exposed, the characteristic measurement can be easily performed in the packaged state. Since there is no need to measure, work related to measurement is easy. Further, since the light incident surface of the solar cell faces upward, it is possible to efficiently inspect visual defects such as scratches and chips on the substrate surface of the solar cell by visual inspection.
[0019]
Furthermore, during transportation, since the solar cell is fixed to the plate body via the adhesive, the solar cell is less likely to vibrate with respect to the plate body, so that static electricity is hardly generated. Therefore, it is possible to suppress the occurrence of damage such as a short circuit of the power generation film due to static electricity. And since the output terminal of a solar cell will be located in opening, it can maintain a clean state, without vibrating during output and rubbing an output terminal. Therefore, when the lead wire is soldered to the output terminal or the heat seal is thermocompression-bonded after transportation, it can be electrically and strongly connected in a good state.
[0020]
In addition, when the solar cell is separated from the plate, the adhesive is attached to the solar cell. Therefore, when the solar cell is incorporated into an electronic device such as a calculator, the solar cell is bonded to the inside of the electronic device with an adhesive. And can be fixed.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a solar cell of the present invention.
FIG. 2 is a perspective view showing an embodiment of the present invention.
3 is a cross-sectional view taken along the line AA in FIG.
FIG. 4 is a perspective view showing a state in which one embodiment of the present invention is overlaid.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Solar cell 3 Output terminal 10 Plate body 11 Adhesive material 12 Opening

Claims (1)

A plate on which an output terminal made of a transparent conductive film, a silicon film, and a metal electrode film is formed on an insulating translucent substrate whose back surface is a light incident surface, and the output terminal is exposed by a protective film provided on the surface Shaped solar cell,
A plate to which the solar cell is fixed;
The solar cell packaging structure in which the solar cell is housed in the plate body by an adhesive provided between the plate body and the protective film,
When the solar cell is separated from the plate and incorporated in an electronic device, the adhesive is attached to the protective film side, and the solar cell can be fixed to the electronic device by the adhesive. Solar cell packaging structure.

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