Method and facility for controlling the internal pressure of a photovoltaic module
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United States of America Patent
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Feb 14, 2017
Grant Date -
Oct 22, 2015
app pub date -
Nov 21, 2013
filing date -
Nov 23, 2012
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Abstract
A method for controlling the internal pressure of a photovoltaic module having a front plate, rear plate, photovoltaic cells, electrical interconnection conductors, and peripheral seal, in which the conductors are in pressure contact with the cells, under the effect of a force resulting from a vacuum prevailing inside the module. The method includes: a) gradually reducing the pressure of a gas quantity around the module; b) detecting, during step a), a physical parameter representative of the actual pressing of the interconnection conductors against the cells; and c) determining a value of the internal pressure of the module on the basis of a variation in the physical parameter. The control facility comprises an enclosure for receiving the module inside a gas quantity, the enclosure including elements for: reducing the pressure of this gas quantity, detecting a physical parameter representative of the actual pressing, and determining the internal pressure of the module.
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