Photovoltaic module and production method thereof

Details Photovoltaic module and production method thereof Photovoltaic module and production method thereof

H - Electricity

01

L

H01L 31/048 (2006.01)

Patent

CA 2522405

The invention relates to a photovoltaic module comprising front (2) and rear (3) plates. In addition, an organic sealing joint (4) is disposed between the plates and defines an inner sealed volume (5) which is maintained at a pressure lower than atmospheric pressure and which contains the photovoltaic cells (1). The aforementioned sealing joint (4) is an organic joint, e.g. thermoplastic or polybutylene. According to the inventive method, the vacuum pressure is produced by means of suction. The method can comprise inert gas scavenging, the establishment of the vacuum pressure and compression sealing (P1). Said method can also comprise: partial sealing of the module, such as to leave two openings in the sealing joint (4); inert gas scavenging of the inner volume by means of the two openings; the establishment of the vacuum pressure; and, subsequently, the blocking of said openings.

Le module photovoltaïque comporte des plaques avant (2) et arrière (3). Un joint de scellement (4) organique est disposé entre les plaques et délimite un volume intérieur étanche (5), maintenu à une pression inférieure à la pression atmosphérique, dans lequel sont disposées les cellules photovoltaïques (1). Le joint de scellement (4) est un joint organique, par exemple de nature thermoplastique, par exemple de la famille des poly-butylènes. Le procédé de fabrication comporte la formation de la dépression par aspiration. Le procédé peut comporter un balayage par gaz neutres, l'établissement de la dépression et le scellement par compression (P1). Le procédé peut également comporter un scellement partiel du module, de manière à laisser deux ouvertures dans le joint de scellement (4), un balayage par gaz neutres du volume intérieur par l'intermédiaire des deux ouvertures, l'établissement de la dépression et le bouchage des ouvertures.

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