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Solar battery module

A technology for solar cells and electrode layers, applied in circuits, photovoltaic power generation, electrical components, etc., can solve the problems of poor appearance and softening of sealing components, and achieve the effect of reducing the generation of leakage paths

Inactive Publication Date: 2013-03-27
FUJI ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this case, the sealing member covering the solar cell and the diode becomes soft or melts, which may cause poor appearance such as swelling and deformation of the sealing member

Method used

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Experimental program
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Embodiment Construction

[0030] refer to Figures 1 to 6 One embodiment of the solar cell module according to the present invention will be described.

[0031] figure 1 is a schematic diagram showing a cross section of the solar cell module 10 . figure 2 is a schematic diagram showing the bottom surface of the solar cell module 10 . The solar cell module 10 is mainly configured by a solar cell module 20 and a diode module 40 . The diode assembly 40 is configured such that the electrode layers of the non-light-receiving surface 20b of the solar cell assembly 20 and the electrode layer of the diode assembly are pressure-bonded to each other, whereby these electrode surfaces become surface-contacted and bonded to each other. The diode assembly 40 and the solar cell assembly 20 are integrated and sealed by the sealing member 80 . When viewed from the bottom surface of the solar cell module 10, the back electrode layer 26 of the solar cell constituting the solar cell module 20 (in figure 2 There are...

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Abstract

Provided is a solar battery module which is provided with a bypass diode and has excellent power generation characteristics. With this solar battery module, appearance defects such as the swelling and deformation of sealing material are unlikely to occur. This solar battery module (10) is provided with a solar battery cell assembly (20) and a diode assembly (40), at least one of a pair of electrode layers on either side of a semiconductor layer of a diode part in the diode assembly (40) is formed of an electrically conductive oxide, an electrode layer of the solar battery cell assembly (20) and the electrode layer of the diode assembly (40) are in surface contact and are electrically connected to each other, and the solar battery cell assembly (20) and diode assembly (40) are sealed with a sealing material (80) so as to be formed as a single unit.

Description

technical field [0001] The invention relates to solar cell modules with bypass diodes. Background technique [0002] A solar cell module is designed by electrically connecting a plurality of solar cells in series to obtain a predetermined output. [0003] Incidentally, in the non-power generation state of the solar cell (when sunlight irradiated to the solar cell is blocked), the resistance of the solar cell increases, thereby generating heat. This can lead to thermal damage of the solar cell. In order to prevent these damages of the solar cells, the solar cells are provided with bypass diodes, wherein the diodes are electrically connected in parallel to the solar cells and current is bypassed from these diodes in the event of shading or other problems in a part of the solar cells. [0004] In standard bypass diodes, the molded diode is connected to the outside of the solar cell. However, such bypass diodes have poor attachment workability because each molded diode needs ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/042
CPCY02E10/52H01L31/042H01L27/1421H01L31/0465Y02E10/50
Inventor 辻刚人和田雄人
Owner FUJI ELECTRIC CO LTD