Manufacturing process of a hybrid solar panel

Abstract

The invention relates to a hybrid solar panel comprising: photovoltaic elements having a front face and a rear face; a heat exchanger arranged opposite the rear face of said photovoltaic elements; and a cooling fluid circulating in said exchanger in such a way as to cool the photovoltaic elements, said exchanger comprising a heat exchange region through which said fluid flows, arranged beneath said photovoltaic elements, said exchange region comprising elements that enable the flow of the fluid to be disrupted in such a way as to stimulate the heat exchanges in the exchange region. The invention is characterised in that said exchange region is formed by a lower exchange plate designed in such a way as to form built-in obstruction elements extending over the entire thickness of the strand of cooling fluid flowing through the exchange region, and in that the upper end of the obstruction elements is in contact with the rear face of the photovoltaic elements in such a way that said photovoltaic elements are cooled mainly at these contact points.

1 . Manufacturing process of a hybrid solar panel capable of producing an electric energy and a thermal energy, wherein a heat exchanger is positioned opposed to a rear face of photovoltaic elements of the hybrid solar panel, comprising:
 molding a lower exchange plate and an upper exchange plate, each made out of a thermoplastic material, wherein the lower exchange plate forms a heat transfer zone,
 shaping the lower exchange plate so as to form disruption elements enabling disruption of the flow of the fluid in the transfer zone, so as to facilitate thermal transfers in the transfer zone, 
 forming the disruption elements in the shape of nipples, semi-spheres, or pyramids, the disruption elements forming bumps at an upper surface of the lower exchange plate and forming hollows at an underside of the lower exchange plate, 
   assembling the upper exchange plate and the rear face of the photovoltaic elements, an upper end of the disruption elements being positioned in surface contact with the upper exchange plate,   circulating a coolant fluid in the heat exchanger, so that the coolant fluid recuperates heat from the photovoltaic elements.   
     
     
         2 . Manufacturing process according to  claim 1 , comprising positioning the upper exchange plate on the rear face of the photovoltaic elements, so as to form an electrically insulating backsheet of the photovoltaic elements. 
     
     
         3 . Manufacturing process according to  claim 1 , comprising using the rear face of the photovoltaic elements as the upper exchange plate. 
     
     
         4 . Manufacturing process according to  claim 1 , comprising shaping the lower exchange plate so as to form, several hundred disruption elements per m 2  of heat exchange surface, the disruption elements being distributed in discontinuous staggered rows. 
     
     
         5 . Manufacturing process according to  claim 1 , comprising shaping the lower exchange plate so as to form the transfer zone and an inlet zone and a discharge zone for the coolant fluid. 
     
     
         6 . Manufacturing process according to  claim 1 , comprising shaping the lower exchange plate so as to form the transfer zone and all or part of a substrate upon which the photovoltaic elements rest. 
     
     
         7 . Manufacturing process according to  claim 1 , comprising shaping the lower exchange plate so as to form channels for circulating the coolant fluid, positioned on both sides of the transfer zone, the channels having pressure drops lower than a pressure drop in the transfer zone providing a uniform distribution of the fluid in the transfer zone. 
     
     
         8 . Manufacturing process according to  claim 1 , comprising positioning a long thin junction box on the rear face of the hybrid solar panel, without being opposed to the rear face of a photovoltaic element.