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Title:
MOISTURE-PROOF EXPANSION CHAMBER FOR EQUALIZING PRESSURE IN SEALED CONCENTRATOR PHOTOVOLTAIC SOLAR MODULES
Document Type and Number:
WIPO Patent Application WO/2011/085086
Kind Code:
A3
Abstract:
A concentrator-type photovoltaic device includes at least one light receiving module having a plurality of photovoltaic devices therein, and a pressure regulating device comprising a volume-adjustable chamber that is pneumatically coupled to the at least one light receiving module. The volume-adjustable chamber may be configured to expand and contract in response to temperature fluctuations within the at least one light receiving module. The volume-adjustable chamber can be made from a flexible metalized film with a low water vapor transmission rate. In this way the module can remain sealed from water penetration and yet maintain uniform internal pressure during thermal excursions. The volume-adjustable chamber may be combined with a desiccant such that, as air moves into the expansion chamber, it passes over the desiccant, which removes moisture that has penetrated into the sealed module.

Inventors:
FURMAN BRUCE (US)
MENARD ETIENNE (US)
BUKOVNIK RUDY (US)
BURROUGHS SCOTT (US)
Application Number:
PCT/US2011/020353
Publication Date:
March 08, 2012
Filing Date:
January 06, 2011
Export Citation:
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Assignee:
SEMPRIUS INC (US)
FURMAN BRUCE (US)
MENARD ETIENNE (US)
BUKOVNIK RUDY (US)
BURROUGHS SCOTT (US)
International Classes:
H01L31/052
Domestic Patent References:
WO2008039399A12008-04-03
WO2009061493A12009-05-14
WO2007093422A12007-08-23
Foreign References:
US20070251569A12007-11-01
US20090173376A12009-07-09
Attorney, Agent or Firm:
MYERS BIGEL SIBLEY & SAJOVEC, P.A. (Raleigh, North Carolina, US)
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