Solar battery module manufacturing method
A technology for solar cells and manufacturing methods, applied in the direction of final product manufacturing, sustainable manufacturing/processing, circuits, etc., can solve problems such as detrimental appearance and reduced power generation performance
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Embodiment 1
[0081] As the solar battery cells 4 , 40 polycrystalline silicon solar battery cells having a square shape of 125 mm×125 mm×0.35 mm were used. The four corners are chamfered by a few millimeters. As the lead wire 8 , a dip-soldered copper ribbon wire manufactured by Marusho Co., Ltd. was used. The flat wire has a width of 1.5 mm and a thickness of 0.25 mm. Solder material is pre-printed on the light-receiving surface 6 and the back surface 7 of the solar cell 4 where the wires 8 are bonded. One end of the wire 8 is overlapped and soldered to the solder printed portion of the light-receiving surface 6 of the solar cell 4, and the other end is overlapped and soldered to the solder on the back surface 7 of the adjacent solar cell 4. on the printing department. Adjacent units are connected by two wires 8 with an interval of about 50 mm. That is, the width of the gap portion 9 is about 50 mm.
[0082] As the back plate 3, a float flat tempered glass (blue glass plate) of 1000 ...
Embodiment 2
[0109] Except that the temperature and pressure during the sealing process were changed as shown in Table 2 and FIG. 12 , a solar cell module was obtained in the same manner as in Example 1 using sheet arrangement pattern A and sheet arrangement pattern B.
[0110] Table 2
[0111]
[0112] In the obtained solar battery cells, regardless of whether the sheet arrangement pattern A or the sheet arrangement pattern B was used, there was no breakage or chipping of the cell or disconnection of the wire, and no air bubbles remained or peripheral sealing was observed. Extrusion or shrinkage of resin. Moreover, the intervals between the adjacent solar cell units are all in the range of 50±3mm, and they are arranged regularly and packaged.
[0113] In Example 2, the time required for the encapsulation process was successfully reduced to less than half of the time required in Example 1 by passing the steps that could shorten the time as short as possible. Productivity can be signif...
Embodiment 3
[0116] Except that the temperature and pressure during the sealing process were changed as shown in Table 3 and FIG. 13 , the solar cell modules were obtained in the same manner as in Example 1 using sheet arrangement pattern A and sheet arrangement pattern B.
[0117] table 3
[0118]
[0119] In the obtained solar battery cells, regardless of whether the sheet arrangement pattern A or the sheet arrangement pattern B was used, there was no breakage or chipping of the cell or disconnection of the wire, and no air bubbles remained or peripheral sealing was observed. Extrusion or shrinkage of resin. However, some of the intervals between adjacent solar battery cells are outside the range of 50±3 mm. Specifically, in the vicinity of the center of the solar battery module, the distance between adjacent solar battery cells is less than 47 mm, and in the peripheral part of the solar battery module, the distance between adjacent solar battery cells is more than 47 mm. 53mm case....
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