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Photovoltaic module

A photovoltaic module and photovoltaic cell technology, applied in photovoltaic power generation, electrical components, circuits, etc., can solve the problems of increasing the area where power generation does not work, reducing power generation capacity, etc., and achieving good machinability, reliable attachment, and stability Effect of Photovoltaic Characteristics

Inactive Publication Date: 2012-09-19
FUJI ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Also, since the diode is provided outside the photovoltaic cell, the area that does not contribute to power generation increases, and there is a problem that the power generation capacity per unit area decreases

Method used

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Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0028] refer to Figures 1 to 6 Embodiment 1 of the photovoltaic module in the present invention will be described.

[0029] Such as figure 1 and 2 As shown, the photovoltaic module 10 is mainly composed of a photovoltaic cell assembly 20 and a diode assembly 40 . The diode assembly 40 is connected to the non-light-receiving surface side 20 b of the photovoltaic cell assembly 20 through an insulating layer 60 . Also, the diode assembly 40 is electrically connected to the photovoltaic cell assembly 20 through the conductive tape 70 also having conductivity on the adhesive portion. In addition, the entirety of the photovoltaic cell module 20 and the diode module 40 is sealed and integrated by the sealant 80 .

[0030] The insulating layer 60 is not particularly limited as long as it has insulating properties. For example, the insulating layer 60 may be a resin material such as ethylene-vinyl acetate copolymer resin (EVA), epoxy resin, or fluorine-containing resin.

[0031]...

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PUM

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Abstract

The present invention provides a photovoltaic module with bypass diodes that has a high electricity generating capacity per unit area and high productivity. This photovoltaic module includes a photovoltaic cell assembly in which a plurality of photovoltaic cells are electrically connected in series, and a diode assembly in which a plurality of diodes are formed on a substrate in the arrangement that is consistent with the arrangement of the photovoltaic cells to which the diodes are to be attached. The diode assembly is disposed on a non-light receiving side of the photovoltaic cells, and the diodes are electrically connected to the photovoltaic cells. The photovoltaic cell assembly and the diode assembly are sealed and united by a sealant.

Description

technical field [0001] The invention relates to photovoltaic modules with bypass diodes. Background technique [0002] A photovoltaic module is designed by electrically connecting a plurality of photovoltaic cells in series so that a predetermined output can be obtained. [0003] In certain situations when the photovoltaic cell is not generating electricity (in the case when sunlight to the photovoltaic cell is blocked), its resistivity increases and the power that can be extracted decreases. Also, there is a possibility that heat will be generated due to resistive losses, which can lead to thermal damage and the like. Thereby, the diode is electrically connected in parallel to the photovoltaic cell, and when a fault occurs in the photovoltaic cell, current is bypassed through the diode. In this way, a reduction in the extracted power and damage to the photovoltaic cells can be prevented. Diodes connected in this way are called bypass diodes. [0004] Typically, molded d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/02
CPCH01L27/1421Y02E10/50H01L31/05H01L31/022441H01L31/042H01L31/0516H01L31/044H01L31/0443
Inventor 下泽慎藤挂伸二佐藤广喜
Owner FUJI ELECTRIC CO LTD
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