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Solar cell module with power converters

A technology of solar cells and power converters, which is applied in current collectors, photovoltaic modules, battery circuit devices, etc., and can solve problems such as limitations, reduced bending stress resistance of solar cells, and loss of flexibility

Inactive Publication Date: 2007-07-11
CANON KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, placing a power converter on a solar cell greatly loses flexibility
This is because it is difficult for the IC components that make up the power converter to be flexible, and even if a flexible solar cell is used, since the solar cell itself is essentially formed of a hard material such as silicon, it is flexible even after being thinned. , but the flexibility is also limited. When rolled into a roll, the degree of resistance to bending stress of the solar cell is reduced, so it must be rolled into a roll

Method used

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  • Solar cell module with power converters
  • Solar cell module with power converters
  • Solar cell module with power converters

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Embodiment 1

[0091] In this embodiment, there are multiple amorphous crystals covered with covering materials made of ethylene-tetrafluoroethylene copolymer (ETFE), ethylene-vinyl acetate copolymer (EVA) and polyethylene terephthalate (PET). An example of a tandem solar cell with a state microcrystalline silicon type three-layer structure, and a solar cell module in which a DC-DC converter is provided on the surface of ETFE.

[0092] Fig. 4 shows a schematic view of a solar cell module having a DC-DC converter on the surface of ETFE of this embodiment. 401 denotes a solar cell module with a DC-DC converter, 402 denotes an amorphous microcrystalline laminated solar cell, 403 denotes a DC-DC power converter, 404 denotes a parallel connection line, 405 denotes an output line of a solar cell module, and 406 denotes a Junction Box.

[0093] Since the amorphous microcrystalline tandem solar cell is flexible, the solar cell module as a whole can be made into a flexible solar cell module.

[009...

Embodiment 2

[0109] In this embodiment, a laminated solar cell comprising a plurality of amorphous microcrystalline silicon-type three-layer structures covered by a covering material made of ETFE, EVA and PET is provided, and a DC-DC converter is arranged on the surface of ETFE. An example of a solar module. The solar cell module with power converter of this embodiment has a structure in which the ground wire of the DC-DC converter is shared with the negative pole of the solar cell.

[0110] Fig. 13 shows a schematic view of a solar cell module having a DC-DC converter on the surface of ETFE of this embodiment. 1301 denotes a solar cell module with a power converter, 1302 denotes an amorphous microcrystalline stacked solar cell, 1303 denotes a DC-DC converter, 1304 denotes a parallel connection line, 1305 denotes an output line of a solar cell module, 1306 denotes a junction box, 1307 represents a ground wire.

[0111]Fig. 14 is a diagram showing the arrangement position of the DC-DC con...

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PUM

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Abstract

Provided is a solar cell module with power converters, including a plurality of solar cells, a covering member, and a plurality of power converters provided on a surface of the covering member, in which the solar cells form a plurality of solar cell groups comprising two or more solar cells electrically connected to each other with a gap therebetween via an interconnector, each of the power converters is arranged out of an extension line of the gap, each power converter is connected to an output of one solar cell group, and outputs of the respective power converters are all connected in parallel to each other.

Description

technical field [0001] The present invention relates to a solar cell module with a power converter in which a power converter for converting an output from a solar cell into electric power is integrated with a flexible solar cell module composed of a solar cell and a covering material. Background technique [0002] A large number of flexible solar cell modules are known to date. Japanese Patent Application Laid-Open No. 8-114013 and Japanese Patent Laid-Open No. 2001-332752 disclose this representative solar cell module, which is a solar cell module finely divided on a flexible substrate by using interconnectors and laser scribing technology. batteries connected in series. A flexible solar cell module has the following advantages. [0003] i) When shipped, it can be transported in a roll shape, so it is compact in space, and the light incident side is rolled inside, so that the light receiving side will not be damaged due to contact accidents during transportation. Theref...

Claims

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Application Information

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IPC IPC(8): H01L31/042H01L31/04H02J7/35H01L31/05
CPCH01L31/02021Y02E10/50H01L31/05H01L31/042H02S40/32H02M3/3372
Inventor 松下正明片冈一郎牧田英久向井隆昭糸山诚纪
Owner CANON KK
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