摘要:
A solar radiation collector is provided. The collector is configured to receive solar radiation from a range of angles including a first range constituting an acceptance angle, and a second range constituting angles outside said first range. It further comprises a photovoltaic cell and a regulator, which is configured to regulate the appearance of the collector to an observer within the second range, constituting a source of visible radiation which is visible to an observer within the second range.
摘要:
A window is provided comprising a front pane (12) and a rear pane (14) defining a space therebetween, and at least partially transparent liquid (26) disposed within the space. The liquid has a refractive index so close to that of the front pane that a majority of light impinging the front pane will pass therethrough into the liquid. A window further comprises at least one PV cell (18) disposed in the space so that at least a first portion of light that passes through the front pane into the liquid is directed to the PV cell, optionally by a light-ray separator (22) disposed with the space, for conversion of the first portion of light into electrical energy.
摘要:
A solar radiation collector comprising a concentrator and a photovoltaic cell, the concentrator comprising at least a prismatic primary portion, the primary portion comprising primary entrance aperture having a perimeter, an outer surface adapted for receiving radiation, and a inner surface; a primary receiver plane; sidewalls, meeting the primary entrance aperture along at least a portion of the perimeter; and a reflective bottom surface. The primary portion is adapted to utilize total internal reflection at least from the inner surface of the primary entrance aperture to concentrate radiation entering through the primary entrance aperture toward the primary receiver plane. The primary entrance aperture comprises a reference area defined as the area thereof between two lines, each of the lines being the intersection between the primary entrance aperture and an imaginary plane which is perpendicular to both the primary entrance aperture and an extreme end of the primary receiver plane; the total area of the primary entrance aperture substantially exceeding that of the reference area.
摘要:
A method for manufacture of a photovoltaic module is provided, the method comprising providing one or more photovoltaic (PV) cells, each being configured to convert incident light into electrical energy, providing a printed circuit board (PCB) configured to electrically connect the PV cells to each other, disposing the PV cells on the PCB, providing a solder paste between the electrically conductive portions of the PV cells and PCB, and heating the PV cells and PCB to a temperature sufficient to melt the solder paste, thereby soldering the PV cells to the PCB.
摘要:
A window is provided, comprising at least one exterior layers, one or more photovoltaic (PV) cells configured to convert a first portion of solar radiation impinging on the window to electrical energy, and at least one thermal conduit configured to draw heat from the PV cells. The thermal conduits are in conductive thermal communication with at least one of the PV cells with at least one of the exterior layer.
摘要:
A window is provided comprising a front pane and one or more prism units each comprising: a primary prism disposed adjacent the front pane and having a primary entrance face and a primary exit face. The primary entrance face is configured to receive a first and a second portion of light that passes through the front pane. The window further comprises a secondary prism disposed adjacent the primary prism and having a secondary entrance face and a secondary exit face. The secondary entrance face is configured to receive from the primary exit face at least the second portion of light. At least one of the entrance and exit faces comprises a light diverging surface which causes divergence of light passing therethrough, and at least one of the entrance and exit faces different from the light diverging face, comprises a light converging surface configured to reduce the divergence.
摘要:
The present invention relates to UV curable encapsulant compositions based on acrylic and/or methacrylic block copolymers, to structures containing these compositions especially photovoltaic cells and to the use of these compositions in photovoltaic cells. The liquid encapsulant composition according to the invention comprises: an acrylic or methacrylic block copolymer, at least one acrylic or methacrylic monomer and/or oligomer, and at least one photo initiator. wherein said acrylic or methacrylic block copolymer is of the general formula B- (A)n, wherein: n is a natural integer greater than or equal to 1, B represents an acrylic or methacrylic polymer block composed of a sequence of monomer units which may be polymerized by the radical route, the overall Tg of which is less than 0°C, A is an acrylic or methacrylic polymer block composed of a sequence of monomer units which may be polymerized by the radical route, the overall Tg of which is greater than 0°C, block B represents at least 50%, and preferably from 60% to 95% w/w of the block copolymer.