WO2012131123A1 - Photovoltaic solar concentration module - Google Patents

Photovoltaic solar concentration module Download PDF

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Publication number
WO2012131123A1
WO2012131123A1 PCT/ES2012/000079 ES2012000079W WO2012131123A1 WO 2012131123 A1 WO2012131123 A1 WO 2012131123A1 ES 2012000079 W ES2012000079 W ES 2012000079W WO 2012131123 A1 WO2012131123 A1 WO 2012131123A1
Authority
WO
WIPO (PCT)
Prior art keywords
photovoltaic
housing
concentration module
solar concentration
receivers
Prior art date
Application number
PCT/ES2012/000079
Other languages
Spanish (es)
French (fr)
Inventor
Sebastián CAPARRÓS JIMÉNEZ
Antonio DE DÍOS PARDO
Carlos MARTÍN MAROTO
José Antonio PÉREZ GARCÍA DE CASTRO
Carlos POZO BLASCO
Original Assignee
Abengoa Solar New Technologies, S.A.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from ES201130522A external-priority patent/ES2396785B1/en
Priority claimed from ES201101144A external-priority patent/ES2404667B8/en
Application filed by Abengoa Solar New Technologies, S.A. filed Critical Abengoa Solar New Technologies, S.A.
Publication of WO2012131123A1 publication Critical patent/WO2012131123A1/en

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
    • H01L31/052—Cooling means directly associated or integrated with the PV cell, e.g. integrated Peltier elements for active cooling or heat sinks directly associated with the PV cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L31/02—Details
    • H01L31/02002—Arrangements for conducting electric current to or from the device in operations
    • H01L31/02005—Arrangements for conducting electric current to or from the device in operations for device characterised by at least one potential jump barrier or surface barrier
    • H01L31/02008—Arrangements for conducting electric current to or from the device in operations for device characterised by at least one potential jump barrier or surface barrier for solar cells or solar cell modules
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
    • H01L31/054—Optical elements directly associated or integrated with the PV cell, e.g. light-reflecting means or light-concentrating means
    • H01L31/0543—Optical elements directly associated or integrated with the PV cell, e.g. light-reflecting means or light-concentrating means comprising light concentrating means of the refractive type, e.g. lenses
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
    • H02S40/20—Optical components
    • H02S40/22—Light-reflecting or light-concentrating means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy
    • Y02E10/52—PV systems with concentrators

Definitions

  • the present invention belongs to the technical field of photovoltaic solar modules for the use of solar energy for the production of electrical energy, specifically to high concentration photovoltaic solar modules, and more specifically to modules formed by a parquet of concentrating lenses, optical elements secondary, and high-efficiency photovoltaic cells, all arranged in a housing, together with auxiliary systems, such as heat dissipation systems, electrical insulation systems and protection systems.
  • WO2006114457, US2009106648 and WO 2009058603 show the typical scheme of operation of a photovoltaic solar concentration system.
  • This system consists of light concentrating lenses on photovoltaic receivers, and secondary optical elements that provide the system with greater concentration.
  • Various systems that use concentrating lenses have been proposed with and without secondary optics.
  • the present invention provides solutions for the improvement of the functional performance of the photovoltaic modules.
  • the module object of the present invention has an optical system capable of providing sufficient concentration and doing it efficiently. It also has high efficiency cells, and adequate thermal management systems, cost efficient, in addition to electrical insulation systems that prevent current leakage with the potential to cause dangerous situations in their handling. Additionally, the module has adequate ventilation systems that eliminate condensation problems inside it.
  • the module of the present invention consists of a series of elements that can be displayed externally and others that are housed inside it.
  • the module is formed by a parquet of lenses that concentrate the light on photovoltaic receivers, all supported by a frame that can be metallic or polymeric. On the back of the module there are linear heat sinks.
  • the module features a number of elements such as secondary optical elements, electrically connected photovoltaic receivers, plastic parts for the electrical isolation of the receivers as well as clipping parts. Additionally, the module features a valve system for external ventilation and off-focus protection systems, that is, systems to prevent damage to internal elements by deviations of light rays.
  • the photovoltaic receivers are formed by a surface of copper or other conductive material on which at least one photovoltaic cell, a protection diode and the corresponding photovoltaic receiver connectors are arranged.
  • the module has a parquet of concentrating lenses that are arranged in the upper part of the housing and close it tightly, in a plane parallel to that of the base on which the photovoltaic receivers are.
  • the lens parquet is made using silicone bonded on glass.
  • the number of concentrating lenses is equal to that of photovoltaic receivers and each of the concentrating lenses is arranged on the axis of one of the photovoltaic receivers.
  • each of the pieces contains the space necessary to accommodate at least one photovoltaic receiver and there is a secondary optical element adhered by means of a silicone on each of the photovoltaic cells of each receiver photovoltaic
  • the lenses focus the light on the secondary optical elements that transfer it to the cells of the photovoltaic receivers.
  • the photovoltaic solar concentration module object of the present invention has an electrical isolation system of the photovoltaic receivers, in order to avoid current leakage.
  • This electrical insulation system consists of plastic parts, preferably made by molding. These plastic parts are non-conductive elements of electricity, so they constitute a barrier to current leakage.
  • the electrical isolation system of the photovoltaic receivers also has a thermal interface (pad or thermal paste) arranged in the housing of each of the plastic parts, under the photovoltaic receiver, which electrically isolates said photovoltaic receiver avoiding current leakage. Also, said pad or paste transmits the heat generated in the photovoltaic receiver to the heat sinks, this prevents overheating of the cell. If this pad or paste is adhesive, it will act as a means of securing the photovoltaic receiver.
  • a thermal interface pad or thermal paste
  • the photovoltaic receiver can be attached to the plastic part by means of at least one slide or clipping piece.
  • Said clipping piece is a piece complementary to the main body that can slide internally over it until it is placed above the photovoltaic receiver, exerting a uniform pressure on it.
  • the electrical isolation system of the photovoltaic solar concentration module has two pieces for each piece of plastic located on two opposite sides of the body. These clipping pieces slide through cavities made in the piece of plastic being in turn fixed to it. In this way, the clipping pieces exert a uniform but not excessive pressure on the photovoltaic receivers, which avoids overvoltages on the receivers, which in turn could cause torsions in said receivers, causing them to break.
  • the photovoltaic solar concentration module object of the present invention can have heat dissipating elements to evacuate the heat generated in the photovoltaic receivers, improving their efficiency.
  • the photovoltaic cells of the receivers are less efficient at higher temperatures, so a system to keep it as cold as possible greatly increases its performance and life.
  • These heat dissipating elements are longitudinal and are located on the outer face of the base of the housing, each arranged under a row of photovoltaic receivers.
  • the photovoltaic solar concentration module has means of protection against solar radiation out of focus, also called "off focus". This concept refers to situations in which the lenses do not focus on the corresponding secondary elements, but instead do so on other elements of the module. If these other elements are not resistant to the amount of energy received, and are not protected, they could be damaged and cause the module to malfunction.
  • the protection means are formed by inverted "U” shaped longitudinal metal parts, each arranged on a row of secondary optical elements. These metal parts have holes arranged each of them on each of the secondary optical elements of the row. In this way, the pieces of protection against solar radiation out of focus allow the passage of solar radiation only to the secondary elements, preventing the passage of said radiation to the rest of the elements of the module, thus preventing them from being damaged.
  • the solar concentration module object of the present invention has at least one vertical support of the concentrator lens parquet. This is because the lenses basically consist of a large glass plate with a silicone profile on its lower face. If the lenses do not have central supports, they will tend to bend by the action of their own weight, and they could also break due to impacts of objects that could occur during the operation of the module.
  • the vertical support has a height equal to that of the photovoltaic solar concentration module, and is fixed to the base of the housing, usually in the central part of the module, and the parquet of concentrating lenses rests on it. This results in an optimal grip on the lens parquet and good mechanical stability.
  • An alternative embodiment of the claimed module is that the opto-electronic part is easily removable from the main body. This solves the problem of having independent access to cell strings, facilitating the maintenance of the module in the plant and minimizing the cost of possible failures.
  • This cassette system consists of the following components:
  • Off-focus protection system it is an upper part that fulfills a double function as it serves as a means of protection against out-of-focus solar radiation and also acts as a final enclosure to have the system encapsulated.
  • a metal part for securing the secondary optical element that minimizes stresses in the union with the cell and prevents unwanted displacements.
  • the cassette is characterized by occupying a very small volume, being therefore much easier to transport than the complete module.
  • the module assembly procedure it consists of sending the three fundamental elements to field installations or as close as possible. These elements are the lens parquet, the metallic or polymeric housing and the cassette. At the final assembly point these three elements are assembled.
  • this cassette system is characterized by: a) be removable
  • b) include the set of secondary optics and attached, encapsulated and interconnected cells
  • Figure 1 schematically shows the concentration of solar radiation through a concentrating lens to a secondary optical element of a photovoltaic solar concentration module object of the present invention.
  • Figure 2 is a schematic representation of a photovoltaic receiver of a concentration module of the present invention.
  • Figure 3 shows a particular embodiment of an electrical isolation system of the photovoltaic receivers of a concentration module object of the present invention.
  • Figure 4 is a perspective view of a preferred embodiment of a slide or clipping piece of the electrical isolation system of the photovoltaic receivers of the concentration module.
  • Figures 5 and 6 show an embodiment of a housing together with heat dissipating elements of a photovoltaic solar concentration module object of the present invention.
  • Figure 7 is a perspective view of a preferred embodiment of the invention, showing a housing together with means of protection against out-of-focus solar radiation.
  • Figure 8 shows an embodiment of the invention with vertical supports of the concentrator lens parquet and a pair of ventilation valves.
  • Figure 9 is a view of a particular embodiment of a ventilation valve of the photovoltaic solar concentration module.
  • Figures 10a, 10b and 10c show different embodiments of the concentration module housing.
  • Figure 10a is of a frame made by metal faces
  • the Figure 10b belongs to a frame of plastic structure
  • Figure 10c is a one-piece metal frame.
  • Figure 11 shows an alternative embodiment in which a cassette with all the opto-electronic components inside it is installed on the outside of the housing
  • Figure 12 shows an expanded view of the cassette
  • FIG. 13 shows the detail of an alternative embodiment of the clipping parts that fit in the electrical insulation
  • Figure 14 represents the assembly of the clipping parts and the mechanical clamping part of the secondary optics.
  • the object of the present invention is a photovoltaic solar concentration module used for the concentration of solar radiation through a parquet of concentrating lenses (18) on secondary optical elements (19) and the focusing from these on photovoltaic receivers (2) , as seen in figure 1.
  • the photovoltaic solar concentration module object of the present invention is formed by a housing (1), inside which photovoltaic receivers (2) housed in the base of said housing (1) are housed. ) aligned in rows, and interconnected with each other.
  • Each of the photovoltaic receivers (2) has a receiver surface (4), on which at least one photovoltaic cell (5), a protection diode (6), and the corresponding photovoltaic receiver connectors (2) are arranged.
  • Figure 2 schematically shows a photovoltaic receiver (2) with its essential components.
  • the photovoltaic solar concentration module has a parquet of concentrating lenses (18) arranged in the upper part of the housing (1), which close it tightly, in a plane parallel to that of the base of the housing (1) , with photovoltaic receivers (2).
  • These concentrating lenses (18) are equal in number to the photovoltaic receivers (2), and each of them is arranged on one of said photovoltaic receivers (2), whereby each concentrating lens (18) concentrates the solar radiation on a photovoltaic receiver (2).
  • a secondary optical element (19) is provided on each photovoltaic cell (5) of each photovoltaic receiver (2).
  • the photovoltaic solar concentration module has substantially cubic geometry, and according to a preferred embodiment it has a total concentration ratio of 000X, the lens being 174x74 mm, and the light focusing on a 5.5x5.5 mm cell.
  • the lens parquet is composed of 42 lenses distributed in 6 rows with 7 lenses per row.
  • the photovoltaic solar concentration module object of the present invention has an electrical isolation system of the photovoltaic receivers (2).
  • This electrical insulation system is formed by a plurality of plastic parts (8), so that each of them houses a photovoltaic receiver (2).
  • the parts (8) have a housing (9) for the photovoltaic receiver (2), said photovoltaic receiver (2) being attached to the plastic part (8).
  • the electrical isolation system of the photovoltaic receivers (2) has a pad or thermal paste (12) arranged in the housing (9) of each of the plastic parts (8), under the photovoltaic receiver (2), which electrically isolates said photovoltaic receiver (2) and transmits heat from it.
  • the photovoltaic receiver (2) can be fixed to the plastic part (8) by the pad or thermal paste (12) if it is adhesive.
  • the photovoltaic receiver (2) can be fixed to the plastic part (8) by means of at least one clipping part (10), which is fixed to the plastic part (8) and elastically holds the receiver photovoltaic (2) exerting uniform pressure on it.
  • Figure 4 shows a preferred embodiment of said clipping piece (10).
  • the electrical insulation system has two pieces of clipping (10), which are fixed to each piece of plastic (8) and fasten the photovoltaic receiver (2) on two opposite sides of the latter. .
  • these clipping pieces (10) slide through cavities (11) of the plastic part (8).
  • the materials used for molding the plastic parts (8) are polymers with a certain amount of fiberglass to give it rigidity, such as PA66 + GF30 or Schuladur PCR30.
  • the housing (9) of the plastic parts (8) will have the same dimensions as the photovoltaic receiver (2), which according to a preferred embodiment is 20x20 mm.
  • this housing (9) of the plastic parts must be designed to accommodate a thermal pad (12) that is at least 4 mm more side than the photovoltaic receiver (2), so that the housing (9) will have at least 24x24 mm.
  • Figures 5 and 6 show a particular embodiment of the invention, in which the concentration module has longitudinal heat dissipating elements (13), arranged on the outer face of the base of the housing (1). Each of them is arranged under a row of photovoltaic receivers (2), and has a plurality of longitudinal fins parallel to the rows of photovoltaic receivers (2). Therefore, according to the preferred embodiment indicated above of 6 rows of 7 photovoltaic receivers (2) each row, preferably there will be 6 heat sink elements (13), each covering 7 receivers (2). This way you get efficient heat dissipation, keeping the photovoltaic cell (5) below 90 ° C in the most adverse temperature conditions.
  • the heat dissipating elements (13) are obtained by extruded aluminum, which is an economical process, which lowers the costs of the photovoltaic solar module.
  • the photovoltaic solar concentration module object of the present invention has means of protection against out-of-focus solar radiation.
  • These protection means consist of longitudinal metal pieces (14) with an inverted "U" shape, which are each arranged on a row of secondary optical elements (19).
  • these off-focus protection pieces (4) have a plurality of holes (5) each arranged on each of the secondary optical elements (19) of the row, of such that they allow the solar radiation to pass only to the secondary elements (19) while preventing its passage to the rest of the parts of the module.
  • the module object of the present invention wherein said module has at least one vertical support (16) for the parquet of concentrating lenses (18), which has a height equal to that of the photovoltaic solar concentration module, and which is fixed to the base of the housing (1) in the central part of the module.
  • the lens parquet of concentrating lenses (18) rests on said vertical support (16) preventing the parquet from curving due to its own weight, and reducing the risk of breakage thereof due to some impact during the operation of the module.
  • the module has two vertical supports (16) arranged in the central area of the module, which will be more than enough to safely support the parquet of concentrating lenses (18).
  • the module can have two ventilation valves (17) arranged on opposite walls of the housing (1), which prevent the condensation of water inside the module, and equalize the existing pressures in the interior and exterior of said module.
  • Figure 9 belongs to a particular embodiment of one of these ventilation valves (17).
  • FIG 10 shows different embodiments of the housing (1) of the present photovoltaic solar concentration module.
  • the housing (1) can be formed by a plurality of folded, cut and welded metal faces.
  • the housing (1) is an integral plastic part, and finally, as shown in figure 10c, the housing (1) is also an integral part, but in this case made of stamped aluminum.
  • this cassette is installed in the base of the housing (1) of the photovoltaic module. It consists of the following components (figure 12)):
  • - Off-focus protection system (14) This is a top piece of the same length as the support (103) and an extruded profile with a rectangular section, which serves a double function. On the one hand it serves as a means of protection against out-of-focus solar radiation, and on the other, it serves as the final closing of the support (103) to have the encapsulated system.
  • a metal fastening part (104) composed of support and fixing points with respect to the plastic part (8) of the electrical insulation system, an intermediate zone of circular section that circles the flange of the secondary optical element (19) and an upper area formed by support points that prevent lateral movement of the secondary optical element (9).
  • the cassette is characterized by occupying a very small volume, being therefore much easier to transport than the complete module.
  • the module assembly procedure it consists of sending the three fundamental elements to field installations or as close as possible. These elements are the lens parquet, the metallic or polymeric housing and the cassette. At the final assembly point these three elements are assembled.

Abstract

The invention relates to a photovoltaic solar concentration module formed by: a casing (1); interconnected photovoltaic receivers (2) aligned in rows inside the casing; a panel of concentrating lenses (18) on the upper portion of the casing (1), such as to seal the casing; and a secondary optical element (19) on the photovoltaic cell (5) of each photovoltaic receiver (2). The module includes a system for electrically insulating the photovoltaic receivers (2), formed by plastic parts (8) each housing at least one photovoltaic receiver (2) in a housing (9). In addition, a heating pad (12) is provided in the housing (9), below the photovoltaic receiver (2), which electrically insulates said receiver and transmits heat therefrom.

Description

MÓDULO DE CONCENTRACIÓN SOLAR FOTOVOLTAICA  PHOTOVOLTAIC SOLAR CONCENTRATION MODULE
Campo técnico de la invención Technical Field of the Invention
La presente invención pertenece al campo técnico de los módulos solares fotovoltaicos para el aprovechamiento de la energía solar para la producción de energía eléctrica, concretamente a módulos solares fotovoltaicos de alta concentración, y más concretamente a módulos formados por un parquet de lentes concentradoras, elementos ópticos secundarios, y células fotovoltaicas de alta eficiencia, todos ellos dispuestos en una carcasa, junto con sistemas auxiliares, como sistemas disipadores térmicos, sistemas de aislamiento eléctrico y sistemas de protección.  The present invention belongs to the technical field of photovoltaic solar modules for the use of solar energy for the production of electrical energy, specifically to high concentration photovoltaic solar modules, and more specifically to modules formed by a parquet of concentrating lenses, optical elements secondary, and high-efficiency photovoltaic cells, all arranged in a housing, together with auxiliary systems, such as heat dissipation systems, electrical insulation systems and protection systems.
Antecedentes de la invención Background of the invention
Numerosos sistemas de concentración solar fotovoltaica (CPV) han sido propuestos y desarrollados a lo largo del siglo XX hasta la actualidad. A pesar de este largo historial, estos sistemas no son actualmente competitivos en términos de coste y eficiencia con respecto a las formas tradicionales de producción de energía, y muchos de ellos no han llegado a comercializarse o bien están en las primeras fases de desarrollo. Los principales motivos pueden resumirse en que los costes de las células fotovoltaicas necesarias para esta tecnología han permanecido elevados, que no se ha procedido a una industrialización y automatización de lineas debido principalmente a que todo lo que se ha desarrollado ha sido a escala de prototipos o muy bajos volúmenes, que los diseños y tecnologías empleados no se encontraban tan evolucionados como en la actualidad, y que la fiabilidad de la tecnología no había sido comprobada en el largo plazo, lo cual es una desventaja con respecto a tecnologías más convencionales.  Numerous photovoltaic solar concentration (CPV) systems have been proposed and developed throughout the 20th century to the present. Despite this long history, these systems are not currently competitive in terms of cost and efficiency with respect to traditional forms of energy production, and many of them have not been commercialized or are in the early stages of development. The main reasons can be summed up in that the costs of the photovoltaic cells necessary for this technology have remained high, that industrialization and automation of lines has not been carried out mainly because everything that has been developed has been on a prototype scale or very low volumes, that the designs and technologies used were not as evolved as they are today, and that the reliability of the technology had not been proven in the long term, which is a disadvantage with respect to more conventional technologies.
Los documentos WO2006114457, US2009106648 y WO 2009058603 muestran el típico esquema de funcionamiento de un sistema de concentración solar fotovoltaica. Dicho sistema consiste en lentes concentradoras de luz sobre receptores fotovoltaicos, y elementos ópticos secundarios que dotan al sistema de mayor concentración. Diversos sistemas que utilizan lentes concentradoras han sido propuestos con y sin óptica secundaria. WO2006114457, US2009106648 and WO 2009058603 show the typical scheme of operation of a photovoltaic solar concentration system. This system consists of light concentrating lenses on photovoltaic receivers, and secondary optical elements that provide the system with greater concentration. Various systems that use concentrating lenses have been proposed with and without secondary optics.
De forma más particular, existen diversos documentos que describen la configuración y diseño de módulos de concentración solar fotovoltaica. Por ejemplo, el documento US 2009/0126794 muestra un módulo con un marco multifuncional. Los documentos US 2008/0264469, US 7851693 muestran módulos de concentración solar fotovoltaica con elementos reflectivos, vidrios de protección y sistemas de disipación térmica. Asimismo, el documento US 2010/0101625 presenta un módulo rectangular de gran profundidad, así como el sistema de seguimiento solar asociado al mismo. Sin embargo, los sistemas presentados en el estado de la técnica no abordan específicamente algunas de las principales consideraciones que a nivel de diseño un módulo CPV debería abordar, las cuales se describirán en detalle en la descripción de la invención. El hecho de no incluir dichas consideraciones, podría derivar en costes de manufactura más elevados o rendimientos ineficientes e inseguros. More particularly, there are several documents that describe the configuration and design of photovoltaic solar concentration modules. For example, US 2009/0126794 shows a module with a multifunctional frame. US 2008/0264469, US 7851693 documents show photovoltaic solar concentration modules with reflective elements, protective glass and thermal dissipation systems. Likewise, document US 2010/0101625 presents a rectangular module of great depth, as well as the solar tracking system associated with it. However, the systems presented in the prior art do not specifically address some of the main considerations that a CPV module should address at the design level, which will be described in detail in the description of the invention. Failure to include such considerations could result in higher manufacturing costs or inefficient and unsafe returns.
Descripción de la invención Description of the invention
La presente invención aporta soluciones para la mejora de las prestaciones funcionales de los módulos fotovoltaicos.  The present invention provides solutions for the improvement of the functional performance of the photovoltaic modules.
El módulo objeto de la presente invención presenta un sistema óptico capaz de proporcionar la concentración suficiente y hacerlo eficientemente. Asimismo tiene células de alta eficiencia, y sistemas de gestión térmicas adecuados, eficientes en costes, además de sistemas de aislamiento eléctricos que evitan fugas de corriente con potencial de originar situaciones peligrosas en el manejo de los mismos. Adicionalmente, el módulo presenta sistemas de ventilación adecuados que eliminan problemas de condensación en el interior del mismo. El módulo de la presente invención consta de una serie de elementos que pueden ser visualizados exteriormente y otros que se encuentran alojados en el interior del mismo.  The module object of the present invention has an optical system capable of providing sufficient concentration and doing it efficiently. It also has high efficiency cells, and adequate thermal management systems, cost efficient, in addition to electrical insulation systems that prevent current leakage with the potential to cause dangerous situations in their handling. Additionally, the module has adequate ventilation systems that eliminate condensation problems inside it. The module of the present invention consists of a series of elements that can be displayed externally and others that are housed inside it.
Exteriormente el módulo está formado por un parquet de lentes que concentran la luz sobre unos receptores fotovoltaicos, todo ello sostenido por un marco que puede ser metálico o polimérico. En la parte posterior del módulo existen unos disipadores térmicos lineales. Externally the module is formed by a parquet of lenses that concentrate the light on photovoltaic receivers, all supported by a frame that can be metallic or polymeric. On the back of the module there are linear heat sinks.
En el interior del módulo existen una serie de elementos tales como elementos ópticos secundarios, receptores fotovoltaicos conectados eléctricamente, piezas de plástico para el aislamiento eléctrico de los receptores así como piezas de clipado. Adicionalmente, el módulo presenta un sistema de válvulas para la ventilación externa y sistemas de protección off focus, es decir, sistemas para evitar daños a elementos internos por desviaciones de rayos de luz.  Inside the module there are a number of elements such as secondary optical elements, electrically connected photovoltaic receivers, plastic parts for the electrical isolation of the receivers as well as clipping parts. Additionally, the module features a valve system for external ventilation and off-focus protection systems, that is, systems to prevent damage to internal elements by deviations of light rays.
Los receptores fotovoltaicos están formados por una superficie de cobre u otro material conductor sobre la que están dispuestos al menos una célula fotovoltaica, un diodo de protección y los correspondientes conectores del receptor fotovoltaico. El módulo tiene un parquet de lentes concentradoras que están dispuestas en la parte superior de la carcasa y cierran esta de forma estanca, en un plano paralelo al de la base en la que están los receptores fotovoltaicos. El parquet de lentes está realizado mediante silicona adherida sobre vidrio. The photovoltaic receivers are formed by a surface of copper or other conductive material on which at least one photovoltaic cell, a protection diode and the corresponding photovoltaic receiver connectors are arranged. The module has a parquet of concentrating lenses that are arranged in the upper part of the housing and close it tightly, in a plane parallel to that of the base on which the photovoltaic receivers are. The lens parquet is made using silicone bonded on glass.
El número de lentes concentradoras es igual al de receptores fotovoltaicos y cada una de las lentes concentradoras está dispuesta sobre el eje de uno de los receptores fotovoltaicos.  The number of concentrating lenses is equal to that of photovoltaic receivers and each of the concentrating lenses is arranged on the axis of one of the photovoltaic receivers.
Para mejorar la eficiencia óptica y el ángulo de aceptancia del módulo, cada una de las piezas contiene el espacio necesario para alojar a al menos un receptor fotovoltaico y existe un elemento óptico secundario adherido mediante una silicona sobre cada una de las células fotovoltaicas de cada receptor fotovoltaico. Así, las lentes focalizan la luz sobre los elementos ópticos secundarios que la transfieren a las células de los receptores fotovoltaicos.  To improve the optical efficiency and the acceptance angle of the module, each of the pieces contains the space necessary to accommodate at least one photovoltaic receiver and there is a secondary optical element adhered by means of a silicone on each of the photovoltaic cells of each receiver photovoltaic Thus, the lenses focus the light on the secondary optical elements that transfer it to the cells of the photovoltaic receivers.
El módulo de concentración solar fotovoltaica objeto de la presente invención tiene un sistema de aislamiento eléctrico de los receptores fotovoltaicos, con el objeto de evitar fugas de corriente.  The photovoltaic solar concentration module object of the present invention has an electrical isolation system of the photovoltaic receivers, in order to avoid current leakage.
Este sistema de aislamiento eléctrico está formado por unas piezas de plástico, preferentemente realizadas por moldeo. Estas piezas de plástico son elementos no conductores de la electricidad, por lo que constituyen una barrera para la fuga de corriente.  This electrical insulation system consists of plastic parts, preferably made by molding. These plastic parts are non-conductive elements of electricity, so they constitute a barrier to current leakage.
El sistema de aislamiento eléctrico de los receptores fotovoltaicos presenta además una interfase térmica (almohadilla o pasta térmica) dispuesta en el alojamiento de cada una de las piezas de plástico, bajo el receptor fotovoltaico, la cual aisla eléctricamente dicho receptor fotovoltaico evitando fugas de corriente. Asimismo, dicha almohadilla o pasta transmite el calor generado en el receptor fotovoltaico hacia los disipadores térmicos, ello evita el sobrecalentamiento de la célula. Si esta almohadilla o pasta es adhesiva, actuará como medio de sujeción del receptor fotovoltaico.  The electrical isolation system of the photovoltaic receivers also has a thermal interface (pad or thermal paste) arranged in the housing of each of the plastic parts, under the photovoltaic receiver, which electrically isolates said photovoltaic receiver avoiding current leakage. Also, said pad or paste transmits the heat generated in the photovoltaic receiver to the heat sinks, this prevents overheating of the cell. If this pad or paste is adhesive, it will act as a means of securing the photovoltaic receiver.
Particularmente, el receptor fotovoltaico puede quedar sujeto a la pieza de plástico mediante al menos una corredera o pieza de clipado. Dicha pieza de clipado es una pieza complementaria al cuerpo principal que puede deslizar internamente sobre él hasta situarse encima del receptor fotovoltaico, ejerciendo una presión uniforme sobre el mismo. Particularly, the photovoltaic receiver can be attached to the plastic part by means of at least one slide or clipping piece. Said clipping piece is a piece complementary to the main body that can slide internally over it until it is placed above the photovoltaic receiver, exerting a uniform pressure on it.
De forma preferente, el sistema de aislamiento eléctrico del módulo de concentración solar fotovoltaica tiene dos piezas por cada pieza de plástico ubicadas en dos laterales opuestos del cuerpo. Estas piezas de clipado deslizan a través de unas cavidades practicadas en la pieza de plástico quedando a su vez fijadas a ésta. De esta forma, las piezas de clipado ejercen sobre los receptores fotovoltaicos una presión uniforme pero no excesiva, lo que evita sobretensiones sobre los receptores, que a su vez podrían originar torsiones en dichos receptores, causando la rotura de éstos. Preferably, the electrical isolation system of the photovoltaic solar concentration module has two pieces for each piece of plastic located on two opposite sides of the body. These clipping pieces slide through cavities made in the piece of plastic being in turn fixed to it. In this way, the clipping pieces exert a uniform but not excessive pressure on the photovoltaic receivers, which avoids overvoltages on the receivers, which in turn could cause torsions in said receivers, causing them to break.
Adicionalmente, el módulo de concentración solar fotovoltaica objeto de la presente invención puede disponer de elementos disipadores de calor para evacuar el calor generado en los receptores fotovoltaicos, mejorando la eficiencia de éstos. Las células fotovoltaicas de los receptores son menos eficientes a mayor temperatura, por lo que un sistema para mantenerla lo más fría posible incrementa enormemente su rendimiento y vida útil. Additionally, the photovoltaic solar concentration module object of the present invention can have heat dissipating elements to evacuate the heat generated in the photovoltaic receivers, improving their efficiency. The photovoltaic cells of the receivers are less efficient at higher temperatures, so a system to keep it as cold as possible greatly increases its performance and life.
Estos elementos disipadores de calor son longitudinales y están situados en la cara externa de la base de la carcasa, cada uno de ellos dispuesto bajo una fila de receptores fotovoltaicos.  These heat dissipating elements are longitudinal and are located on the outer face of the base of the housing, each arranged under a row of photovoltaic receivers.
Según una realización particular de la invención, el módulo de concentración solar fotovoltaica tiene medios de protección contra la radiación solar fuera de foco, también llamada "off focus". Este concepto hace referencia a situaciones en las que las lentes no focalizan en los elementos secundarios correspondientes, sino que lo hacen en otros elementos del módulo. Si estos otros elementos no son resistentes a la cantidad energética recibida, y no están protegidos, podrían verse dañados y provocar fallos en el funcionamiento del módulo.  According to a particular embodiment of the invention, the photovoltaic solar concentration module has means of protection against solar radiation out of focus, also called "off focus". This concept refers to situations in which the lenses do not focus on the corresponding secondary elements, but instead do so on other elements of the module. If these other elements are not resistant to the amount of energy received, and are not protected, they could be damaged and cause the module to malfunction.
Estos medios de protección están formados por unas piezas metálicas longitudinales con forma de "U" invertida, dispuestas cada una de ellas sobre una fila de elementos ópticos secundarios. Estas piezas metálicas tienen unos orificios dispuestos cada uno de ellos sobre cada uno de los elementos ópticos secundarios de la fila. De esta forma, las piezas de protección contra la radiación solar fuera de foco permiten el paso de la radiación solar únicamente a los elementos secundarios, impidiendo el paso de dicha radiación al resto de elementos del módulo, evitando así que sean dañados. De forma particular, el módulo de concentración solar objeto de la presente invención presenta al menos un soporte vertical del parquet de lentes concentradoras. Esto es debido a que las lentes consisten básicamente en una gran plancha de vidrio con perfil de silicona en su cara inferior. Si las lentes no tienen soportes centrales, tenderán a curvarse por acción de su propio peso, y además podrían romperse debido a impactos de objetos que pudieran darse durante el funcionamiento del módulo.  These protection means are formed by inverted "U" shaped longitudinal metal parts, each arranged on a row of secondary optical elements. These metal parts have holes arranged each of them on each of the secondary optical elements of the row. In this way, the pieces of protection against solar radiation out of focus allow the passage of solar radiation only to the secondary elements, preventing the passage of said radiation to the rest of the elements of the module, thus preventing them from being damaged. In particular, the solar concentration module object of the present invention has at least one vertical support of the concentrator lens parquet. This is because the lenses basically consist of a large glass plate with a silicone profile on its lower face. If the lenses do not have central supports, they will tend to bend by the action of their own weight, and they could also break due to impacts of objects that could occur during the operation of the module.
Por ello, el soporte vertical tiene una altura igual a la del módulo de concentración solar fotovoltaica, y se fija a la base de la carcasa, normalmente en la parte central del módulo, y el parquet de lentes concentradoras apoya sobre éste. Con ello se consigue una óptima sujeción del parquet de lentes y buena estabilidad mecánica del mismo. Una realización alternativa del módulo reivindicado consiste en que la parte opto- electrónica sea fácilmente desmontable del cuerpo principal. Con ello se solventa el problema de tener acceso independiente a los strings de células, facilitando las labores de mantenimiento del módulo en planta y minimizando el coste ante posibles fallos. Therefore, the vertical support has a height equal to that of the photovoltaic solar concentration module, and is fixed to the base of the housing, usually in the central part of the module, and the parquet of concentrating lenses rests on it. This results in an optimal grip on the lens parquet and good mechanical stability. An alternative embodiment of the claimed module is that the opto-electronic part is easily removable from the main body. This solves the problem of having independent access to cell strings, facilitating the maintenance of the module in the plant and minimizing the cost of possible failures.
Este sistema cassette, está formado por los siguientes componentes:  This cassette system consists of the following components:
- Soporte, fabricado en aluminio eximido, que alberga a todas las piezas internas, con aletas especialmente diseñadas para posibilitar la correcta disipación térmica.  - Support, made of exempted aluminum, which houses all internal parts, with fins specially designed to enable proper thermal dissipation.
- Dos tapas laterales.  - Two side covers.
- Sistema de protección off-focus: se trata de una pieza superior que cumple una doble función ya que sirve como medio de protección contra la radiación solar fuera de foco y además hace las veces de cerramiento final para tener el sistema encapsulado. - Off-focus protection system: it is an upper part that fulfills a double function as it serves as a means of protection against out-of-focus solar radiation and also acts as a final enclosure to have the system encapsulated.
- Elementos ópticos secundarios, debidamente sujetos a los receptores fotovoltaicos, estando dichos receptores interconectados entre sí. - Secondary optical elements, duly subject to photovoltaic receivers, said receivers being interconnected with each other.
- Receptores fotovoltaicos.  - Photovoltaic receivers.
- Sistema de aislamiento eléctrico, formado por una pieza de plástico y una interfase térmica que puede ser almohadilla o pasta térmica.  - Electrical insulation system, consisting of a piece of plastic and a thermal interface that can be pad or thermal paste.
- Piezas de clipado o correderas que encajan en el sistema de aislamiento eléctrico y que se fabrican en resina de poliéster (Rynite ®). Estas piezas de clipado pueden fabricarse como parte de la pieza de plástico del aislamiento eléctrico, formando así un único elemento.  - Clipping or sliding parts that fit in the electrical insulation system and are made of polyester resin (Rynite ®). These clipping parts can be manufactured as part of the plastic part of the electrical insulation, thus forming a single element.
- Una pieza metálica de sujeción del elemento óptico secundario que minimiza esfuerzos en la unión con la célula y evita desplazamientos no deseados.  - A metal part for securing the secondary optical element that minimizes stresses in the union with the cell and prevents unwanted displacements.
El cassette se caracteriza por ocupar un volumen muy reducido, siendo por ello mucho más fácil de transportar que el módulo completo.  The cassette is characterized by occupying a very small volume, being therefore much easier to transport than the complete module.
En cuanto al procedimiento de montaje del módulo consiste en enviar los tres elementos fundamentales a instalaciones en campo o lo más cerca posible. Dichos elementos son el parquet de lentes, la carcasa metálica o polimérica y el cassette. En el punto de montaje final se ensamblan estos tres elementos.  As for the module assembly procedure, it consists of sending the three fundamental elements to field installations or as close as possible. These elements are the lens parquet, the metallic or polymeric housing and the cassette. At the final assembly point these three elements are assembled.
Una vez ensamblados y con los equipos pertinentes, como un simulador solar o caracterizador de componentes fotovoltaicos, se realizan las medidas y pruebas para la cualificación del módulo y su instalación.  Once assembled and with the relevant equipment, such as a solar simulator or photovoltaic component characterizer, measurements and tests are carried out for the qualification of the module and its installation.
Así pues, este sistema cassette se caracteriza por: a) ser desmontable, Thus, this cassette system is characterized by: a) be removable,
b) incluir el conjunto de ópticas secundarias y células pegadas, encapsuladas e interconectadas, b) include the set of secondary optics and attached, encapsulated and interconnected cells,
c) incorporar elementos de clipado y aislamiento eléctrico, c) incorporate clipping and electrical insulation elements,
d) incorporar sistemas de protección off focus, d) incorporate off focus protection systems,
e) incorporar las piezas que proporcionan la necesaria disipación térmica. Descripción de las figuras e) incorporate the parts that provide the necessary thermal dissipation. Description of the figures
A continuación, para facilitar la comprensión de la invención, a modo ilustrativo pero no limitativo se describirá una realización de la invención que hace referencia a una serie de figuras.  Next, to facilitate the understanding of the invention, an illustrative but non-limiting way will describe an embodiment of the invention that refers to a series of figures.
La figura 1 muestra de forma esquemática la concentración de la radiación solar a través de una lente concentradora a un elemento óptico secundario de un módulo de concentración solar fotovoltaica objeto de la presente invención.  Figure 1 schematically shows the concentration of solar radiation through a concentrating lens to a secondary optical element of a photovoltaic solar concentration module object of the present invention.
La figura 2 es una representación esquemática de un receptor fotovoltaico de un módulo de concentración de la presente invención. Figure 2 is a schematic representation of a photovoltaic receiver of a concentration module of the present invention.
La figura 3 muestra una realización particular de un sistema de aislamiento eléctrico de los receptores fotovoltaicos de un módulo de concentración objeto de la presente invención.  Figure 3 shows a particular embodiment of an electrical isolation system of the photovoltaic receivers of a concentration module object of the present invention.
La figura 4 es una vista en perspectiva de una realización preferente de una corredera o pieza de clipado del sistema de aislamiento eléctrico de los receptores fotovoltaicos del módulo de concentración.  Figure 4 is a perspective view of a preferred embodiment of a slide or clipping piece of the electrical isolation system of the photovoltaic receivers of the concentration module.
Las figuras 5 y 6 muestran una realización de una carcasa junto con unos elementos disipadores de calor de un módulo de concentración solar fotovoltaica objeto de la presente invención.  Figures 5 and 6 show an embodiment of a housing together with heat dissipating elements of a photovoltaic solar concentration module object of the present invention.
La figura 7 es una vista en perspectiva de una realización preferente de la invención, que muestra una carcasa junto con unos medios de protección contra la radiación solar fuera de foco.  Figure 7 is a perspective view of a preferred embodiment of the invention, showing a housing together with means of protection against out-of-focus solar radiation.
La figura 8 muestra una realización de la invención con soportes verticales del parquet de lentes concentradoras y un par de válvulas de ventilación.  Figure 8 shows an embodiment of the invention with vertical supports of the concentrator lens parquet and a pair of ventilation valves.
La figura 9 es una vista de una realización particular de una válvula de ventilación del módulo de concentración solar fotovoltaica.  Figure 9 is a view of a particular embodiment of a ventilation valve of the photovoltaic solar concentration module.
Las figuras 10a, 10b y 10c muestran diferentes realizaciones de la carcasa del módulo de concentración. La figura 10a es de un marco realizado mediante caras metálicas, la figura 10b pertenece a un marco de estructura plástica, y la figura 10c es un marco metálico de una sola pieza. Figures 10a, 10b and 10c show different embodiments of the concentration module housing. Figure 10a is of a frame made by metal faces, the Figure 10b belongs to a frame of plastic structure, and Figure 10c is a one-piece metal frame.
La figura 11 muestra una realización alternativa en la que se instala por la parte exterior de la carcasa un cassette con todos los componenetes opto-electrónicos en su interior  Figure 11 shows an alternative embodiment in which a cassette with all the opto-electronic components inside it is installed on the outside of the housing
La figura 12 muestra una vista expandida del cassette  Figure 12 shows an expanded view of the cassette
La figura 13 muestra el detalle de una realización alternativa de las piezas de clipado que encajan en el aislamiento eléctrico  Figure 13 shows the detail of an alternative embodiment of the clipping parts that fit in the electrical insulation
La figura 14 representa el ensamblaje de las piezas de clipado y de la pieza de sujeción mecánica de la óptica secundaria.  Figure 14 represents the assembly of the clipping parts and the mechanical clamping part of the secondary optics.
En estas figuras se hace referencia a un conjunto de elementos que son: In these figures reference is made to a set of elements that are:
1. carcasa del módulo de concentración solar fotovoltaica  1. housing of the photovoltaic solar concentration module
2. receptores fotovoltaicos  2. photovoltaic receivers
4. superficie conductora del receptor fotovoltaico  4. conductive surface of the photovoltaic receiver
5. célula fotovoltaica  5. photovoltaic cell
6. diodo de protección  6. protection diode
7. soporte vertical del parquet de lentes concentradoras  7. vertical support of the concentrator lens parquet
8. piezas de plástico del sistema de aislamiento eléctrico  8. plastic parts of the electrical insulation system
9. alojamiento de las piezas de plástico para el receptor fotovoltaico  9. plastic parts housing for the photovoltaic receiver
10. piezas de clipado o correderas para la sujeción del receptor fotovoltaico a la pieza de plástico  10. clipping or sliding parts for attaching the photovoltaic receiver to the plastic part
11. cavidad de la pieza de plástico para la introducción de la pieza deslizante de clipado  11. cavity of the plastic part for the introduction of the sliding piece of clipping
12. almohadilla térmica del sistema de aislamiento eléctrico  12. thermal pad of the electrical insulation system
13. elementos disipadores de calor longitudinales  13. longitudinal heat sink elements
14. sistema de protección off-focus  14. off-focus protection system
15. orificios del sistema de protección off-focus  15. holes of the off-focus protection system
16. soportes verticales de las lentes concentradoras  16. vertical supports of the concentrating lenses
17. válvulas de ventilación  17. ventilation valves
18. lente concentradora  18. concentrator lens
1 Θ. elemento óptico secundario  1 Θ. secondary optical element
102. tapas laterales  102. side covers
103. soporte  103. support
104. pieza metálica de sujeción mecánica de la óptica secundaria. Descripción de realizaciones preferentes de la invención 104. metallic part of mechanical support of the secondary optics. Description of preferred embodiments of the invention
El objeto de la presente invención es un módulo de concentración solar fotovoltaica utilizado para la concentración de la radiación solar a través de un parquet de lentes concentradoras (18) sobre elementos ópticos secundarios (19) y la focalización desde éstos sobre receptores fotovoltaicos (2), como se observa en la figura 1.  The object of the present invention is a photovoltaic solar concentration module used for the concentration of solar radiation through a parquet of concentrating lenses (18) on secondary optical elements (19) and the focusing from these on photovoltaic receivers (2) , as seen in figure 1.
Tal y como se puede apreciar en las figuras, el módulo de concentración solar fotovoltaica objeto de la presente invención está formado por una carcasa (1), en cuyo interior se alojan unos receptores fotovoltaicos (2) dispuestos en la base de dicha carcasa (1) alineados en filas, e interconectados entre sí. Cada uno de los receptores fotovoltaicos (2) tiene una superficie de receptor (4), sobre la que están dispuestos al menos una célula fotovoltaica (5), un diodo de protección (6), y los correspondientes conectores del receptor fotovoltaico (2). La figura 2 muestra de forma esquemática un receptor fotovoltaico (2) con sus componentes esenciales. As can be seen in the figures, the photovoltaic solar concentration module object of the present invention is formed by a housing (1), inside which photovoltaic receivers (2) housed in the base of said housing (1) are housed. ) aligned in rows, and interconnected with each other. Each of the photovoltaic receivers (2) has a receiver surface (4), on which at least one photovoltaic cell (5), a protection diode (6), and the corresponding photovoltaic receiver connectors (2) are arranged. . Figure 2 schematically shows a photovoltaic receiver (2) with its essential components.
Adicionalmente, el módulo de concentración solar fotovoltaica tiene un parquet de lentes concentradoras (18) dispuestas en la parte superior de la carcasa (1), que cierran ésta de forma estanca, en un plano paralelo al de la base de la carcasa (1), con los receptores fotovoltaicos (2). Estas lentes concentradoras (18) son iguales en número a los receptores fotovoltaicos (2), y cada una de ellas está dispuesta sobre uno de dichos receptores fotovoltaicos (2), por lo que cada lente concentradora (18) concentra la radiación solar sobre un receptor fotovoltaico (2).  Additionally, the photovoltaic solar concentration module has a parquet of concentrating lenses (18) arranged in the upper part of the housing (1), which close it tightly, in a plane parallel to that of the base of the housing (1) , with photovoltaic receivers (2). These concentrating lenses (18) are equal in number to the photovoltaic receivers (2), and each of them is arranged on one of said photovoltaic receivers (2), whereby each concentrating lens (18) concentrates the solar radiation on a photovoltaic receiver (2).
Para mejorar la focalización y concentración de la radiación solar sobre los receptores fotovoltaicos, sobre cada célula fotovoltaica (5) de cada receptor fotovoltaico (2) se dispone un elemento óptico secundario (19). To improve the focus and concentration of solar radiation on photovoltaic receivers, a secondary optical element (19) is provided on each photovoltaic cell (5) of each photovoltaic receiver (2).
El módulo de concentración solar fotovoltaica tiene geometría sustancialmente cúbica, y según una realización preferente presenta una relación de concentración total de 000X, siendo la lente de 174x 74 mm, y focalizándose la luz en una célula de 5.5x5.5 mm. Preferentemente, el parquet de lentes está compuesto por 42 lentes distribuidas en 6 filas con 7 lentes por fila.  The photovoltaic solar concentration module has substantially cubic geometry, and according to a preferred embodiment it has a total concentration ratio of 000X, the lens being 174x74 mm, and the light focusing on a 5.5x5.5 mm cell. Preferably, the lens parquet is composed of 42 lenses distributed in 6 rows with 7 lenses per row.
Tal y como se puede observar representado en las figuras 3 a 4, el módulo de concentración solar fotovoltaica objeto de la presente invención tiene un sistema de aislamiento eléctrico de los receptores fotovoltaicos (2). Este sistema de aislamiento eléctrico está formado por una pluralidad de piezas de plástico (8), de tal forma que cada una de las cuales aloja a un receptor fotovoltaico (2). Como se observa en la figura 3, las piezas (8) tienen un alojamiento (9) para el receptor fotovoltaico (2), quedando sujeto dicho receptor fotovoltaico (2) a la pieza de plástico (8). As can be seen represented in Figures 3 to 4, the photovoltaic solar concentration module object of the present invention has an electrical isolation system of the photovoltaic receivers (2). This electrical insulation system is formed by a plurality of plastic parts (8), so that each of them houses a photovoltaic receiver (2). As seen in the Figure 3, the parts (8) have a housing (9) for the photovoltaic receiver (2), said photovoltaic receiver (2) being attached to the plastic part (8).
Además, el sistema de aislamiento eléctrico de los receptores fotovoltaicos (2) tiene una almohadilla o pasta térmica (12) dispuesta en el alojamiento (9) de cada una de las piezas de plástico (8), bajo el receptor fotovoltaico (2), la cual aisla eléctricamente dicho receptor fotovoltaico (2) y transmite el calor desde éste. In addition, the electrical isolation system of the photovoltaic receivers (2) has a pad or thermal paste (12) arranged in the housing (9) of each of the plastic parts (8), under the photovoltaic receiver (2), which electrically isolates said photovoltaic receiver (2) and transmits heat from it.
El receptor fotovoltaico (2) puede fijarse a la pieza de plástico (8) mediante la propia almohadilla o pasta térmica (12) si esta es adhesiva. Además, particularmente, el receptor fotovoltaico (2) puede fijarse a la pieza de plástica (8) mediante al menos una pieza de clipado (10), la cual se fija a la pieza de plástico (8) y sujeta de forma elástica el receptor fotovoltaico (2) ejerciendo presión uniforme sobre éste. La figura 4 muestra una realización preferente de dicha pieza de clipado (10).  The photovoltaic receiver (2) can be fixed to the plastic part (8) by the pad or thermal paste (12) if it is adhesive. In addition, particularly, the photovoltaic receiver (2) can be fixed to the plastic part (8) by means of at least one clipping part (10), which is fixed to the plastic part (8) and elastically holds the receiver photovoltaic (2) exerting uniform pressure on it. Figure 4 shows a preferred embodiment of said clipping piece (10).
De acuerdo con una realización preferente de la invención, el sistema de aislamiento eléctrico tiene dos piezas de clipado (10), las cuales se fijan a cada pieza de plástico (8) y sujetan al receptor fotovoltaico (2) en dos laterales opuestos de éste. Preferentemente, estas piezas de clipado (10) deslizan a través de unas cavidades (11) de la pieza de plástico (8).  According to a preferred embodiment of the invention, the electrical insulation system has two pieces of clipping (10), which are fixed to each piece of plastic (8) and fasten the photovoltaic receiver (2) on two opposite sides of the latter. . Preferably, these clipping pieces (10) slide through cavities (11) of the plastic part (8).
De forma preferente, los materiales utilizados para el moldeo de las piezas de plástico (8) son polímeros con cierta cantidad de fibra de vidrio para darle rigidez, tales como PA66+GF30 o Schuladur PCR30.  Preferably, the materials used for molding the plastic parts (8) are polymers with a certain amount of fiberglass to give it rigidity, such as PA66 + GF30 or Schuladur PCR30.
El alojamiento (9) de las piezas plásticas (8) tendrá las mismas dimensiones que el receptor fotovoltaico (2), el cual según una realización preferente es de 20x20 mm. Además, preferentemente este alojamiento (9) de las piezas plásticas debe estar diseñado para poder alojar una almohadilla térmica (12) que tenga al menos 4 mm más de lado que el receptor fotovoltaico (2), por lo que el alojamiento (9) tendrá como mínimo 24x24 mm.  The housing (9) of the plastic parts (8) will have the same dimensions as the photovoltaic receiver (2), which according to a preferred embodiment is 20x20 mm. In addition, preferably this housing (9) of the plastic parts must be designed to accommodate a thermal pad (12) that is at least 4 mm more side than the photovoltaic receiver (2), so that the housing (9) will have at least 24x24 mm.
Las figuras 5 y 6 muestran una realización particular de la invención, en la que el módulo de concentración tiene unos elementos disipadores de calor (13) longitudinales, dispuestos en la cara externa de la base de la carcasa (1). Cada uno de ellos está dispuesto bajo una fila de receptores fotovoltaicos (2), y tiene una pluralidad de aletas longitudinales paralelas a las filas de receptores fotovoltaicos (2). Por tanto, de acuerdo con la realización preferente indicada anteriormente de 6 filas de 7 receptores fotovoltaicos (2) cada fila, preferentemente habrá 6 elementos disipadores de calor (13), cubriendo cada uno de ellos 7 receptores (2). De esta forma se consigue una eficiente disipación de calor, manteniendo a la célula fotovoltaica (5) por debajo de 90 °C en las condiciones más adversas de temperatura. Figures 5 and 6 show a particular embodiment of the invention, in which the concentration module has longitudinal heat dissipating elements (13), arranged on the outer face of the base of the housing (1). Each of them is arranged under a row of photovoltaic receivers (2), and has a plurality of longitudinal fins parallel to the rows of photovoltaic receivers (2). Therefore, according to the preferred embodiment indicated above of 6 rows of 7 photovoltaic receivers (2) each row, preferably there will be 6 heat sink elements (13), each covering 7 receivers (2). This way you get efficient heat dissipation, keeping the photovoltaic cell (5) below 90 ° C in the most adverse temperature conditions.
De forma preferente, los elementos disipadores de calor (13) se obtienen mediante aluminio extruído, que es un proceso económico, lo que abarata los costes del módulo solar fotovoltaico.  Preferably, the heat dissipating elements (13) are obtained by extruded aluminum, which is an economical process, which lowers the costs of the photovoltaic solar module.
Preferentemente, el módulo de concentración solar fotovoltaica objeto de la presente invención dispone de medios de protección contra la radiación solar fuera de foco. Estos medios de protección consisten en unas piezas metálicas longitudinales (14) con forma de "U" invertida, que se disponen cada una de ellas sobre una fila de elementos ópticos secundarios (19). Tal y como se puede apreciar en la figura 7, estas piezas de protección off-focus ( 4) presentan una pluralidad de orificios ( 5) dispuestos cada uno de ellos sobre cada uno de los elementos ópticos secundarios (19) de la fila, de tal forma que permiten el paso de la radiación solar únicamente a los elementos secundarios (19) mientras que impiden su paso al resto de partes del módulo.  Preferably, the photovoltaic solar concentration module object of the present invention has means of protection against out-of-focus solar radiation. These protection means consist of longitudinal metal pieces (14) with an inverted "U" shape, which are each arranged on a row of secondary optical elements (19). As can be seen in Figure 7, these off-focus protection pieces (4) have a plurality of holes (5) each arranged on each of the secondary optical elements (19) of the row, of such that they allow the solar radiation to pass only to the secondary elements (19) while preventing its passage to the rest of the parts of the module.
Según una realización particular del módulo objeto de la presente invención, en la que dicho módulo presenta al menos un soporte vertical (16) para el parquet de lentes concentradoras (18), que tiene una altura igual a la del módulo de concentración solar fotovoltaica, y que se fija a la base de la carcasa (1) en la parte central del módulo. De esta forma, el parquet de lentes de lentes concentradoras (18) apoya sobre dicho soporte vertical (16) evitando que el parquet se curve debido a su propio peso, y disminuyendo el riesgo de rotura de éste debido a algún impacto durante el funcionamiento del módulo. Preferentemente, tal y como muestra la figura 8, el módulo presenta dos soportes verticales (16) dispuestos en la zona central del módulo, que serán más que suficientes para soportar de forma segura el parquet de lentes concentradoras (18). According to a particular embodiment of the module object of the present invention, wherein said module has at least one vertical support (16) for the parquet of concentrating lenses (18), which has a height equal to that of the photovoltaic solar concentration module, and which is fixed to the base of the housing (1) in the central part of the module. In this way, the lens parquet of concentrating lenses (18) rests on said vertical support (16) preventing the parquet from curving due to its own weight, and reducing the risk of breakage thereof due to some impact during the operation of the module. Preferably, as shown in Figure 8, the module has two vertical supports (16) arranged in the central area of the module, which will be more than enough to safely support the parquet of concentrating lenses (18).
Igualmente, según muestra la misma figura 8, el módulo puede tener dos válvulas de ventilación (17) dispuestas en paredes opuestas de la carcasa (1), las cuales impiden la condensación de agua en el interior del módulo, e igualan las presiones existentes en el interior y el exterior de dicho módulo. La figura 9 pertenece a una realización particular de una de esas válvulas de ventilación (17).  Likewise, as shown in the same figure 8, the module can have two ventilation valves (17) arranged on opposite walls of the housing (1), which prevent the condensation of water inside the module, and equalize the existing pressures in the interior and exterior of said module. Figure 9 belongs to a particular embodiment of one of these ventilation valves (17).
La figura 10 muestra diferentes realizaciones de la carcasa (1) del presente módulo de concentración solar fotovoltaica. Según una primera realización, mostrada en la figura 10a, la carcasa (1) puede estar formada por una pluralidad de caras metálicas plegadas, cortadas y soldadas de sí. Alternativamente, tal y como se muestra en la figura 10b, la carcasa (1) es una pieza de plástico integra, y por último, según lo mostrado en la figura 10c, la carcasa (1) es también una pieza integral, pero en este caso realizada en aluminio estampado. Figure 10 shows different embodiments of the housing (1) of the present photovoltaic solar concentration module. According to a first embodiment, shown in Figure 10a, the housing (1) can be formed by a plurality of folded, cut and welded metal faces. Alternatively, as shown in Figure 10b, the housing (1) is an integral plastic part, and finally, as shown in figure 10c, the housing (1) is also an integral part, but in this case made of stamped aluminum.
En las figuras 1 , 12, 13 y 14 se representa una realización alternativa en la que se describe un cassette, desmontable que permite ser trasladado de manera independiente al resto del módulo fotovoltaico (con toda la parte opto-electrónica en su interior) hasta la instalación, minimizando los costes logísticos.  In figures 1, 12, 13 and 14 an alternative embodiment is depicted in which a detachable cassette is described that allows it to be independently transferred to the rest of the photovoltaic module (with all the opto-electronic part inside) to the installation, minimizing logistics costs.
Como se ve en la figura 11 , este cassette se instala en la base de la carcasa (1) del módulo fotovoltaico. Está formado por los siguientes componentes (figura 12)): As seen in Figure 11, this cassette is installed in the base of the housing (1) of the photovoltaic module. It consists of the following components (figure 12)):
- Soporte (103), fabricado en aluminio extruido, con sección rectangular y abierto por una de las bases, que alberga a todas las piezas internas y con aletas especialmente diseñadas para posibilitar la correcta disipación térmica ( 3).  - Support (103), made of extruded aluminum, with rectangular section and opened by one of the bases, which houses all internal parts and with fins specially designed to enable the correct thermal dissipation (3).
- Dos tapas laterales (102) que cierran el soporte (103) por su parte frontal y parte posterior. Estas tapas se utilizan para cerrar lateralmente el cassette y lograr su encapsulado, evitando el contacto con los agentes medioambientales.  - Two side covers (102) that close the support (103) at its front and back. These covers are used to close the cassette sideways and achieve its encapsulation, avoiding contact with environmental agents.
- Sistema de protección off-focus (14): Se trata de una pieza superior de la misma longitud que el soporte (103) y de perfil extruido de sección rectangular, que cumple una doble función. Por un lado sirve como medio de protección contra la radiación solar fuera de foco, y por el otro, sirve de cerramiento final del soporte (103) para tener el sistema encapsulado.  - Off-focus protection system (14): This is a top piece of the same length as the support (103) and an extruded profile with a rectangular section, which serves a double function. On the one hand it serves as a means of protection against out-of-focus solar radiation, and on the other, it serves as the final closing of the support (103) to have the encapsulated system.
- Una pieza metálica de sujeción (104) compuesta por unos puntos de apoyo y fijación con respecto a la pieza plástica (8) del sistema de aislamiento eléctrico, una zona intermedia de sección circular que circunvala el reborde del elemento óptico secundario (19) y una zona superior formada por unos puntos de apoyo que impiden el movimiento lateral del elemento óptico secundario ( 9).  - A metal fastening part (104) composed of support and fixing points with respect to the plastic part (8) of the electrical insulation system, an intermediate zone of circular section that circles the flange of the secondary optical element (19) and an upper area formed by support points that prevent lateral movement of the secondary optical element (9).
- Elementos ópticos secundarios (19), debidamente sujetos a la superficie de los receptores fotovoltaicos (2), estando dichos receptores interconectados entre sí.  - Secondary optical elements (19), duly attached to the surface of the photovoltaic receivers (2), said receivers being interconnected with each other.
- Receptores fotovoltaicos (2)  - Photovoltaic receivers (2)
- Sistema de aislamiento eléctrico, formado por una pieza de plástico (8) y una interfase térmica (12) que pueden ser almohadillas o pastas térmicas.  - Electrical insulation system, consisting of a piece of plastic (8) and a thermal interface (12) that can be pads or thermal pastes.
- Correderas o piezas de clipado (10) que encajan en el sistema de aislamiento eléctrico y que se fabrican en resina de poliéster (Rynite ®). Las figuras 13 y 14 reflejan cómo son las correderas y cómo es el ensamblaje de las mismas.  - Sliding or clipping parts (10) that fit in the electrical insulation system and are made of polyester resin (Rynite ®). Figures 13 and 14 reflect how the slides are and how they are assembled.
El cassette se caracteriza por ocupar un volumen muy reducido, siendo por ello mucho más fácil de transportar que el módulo completo. En cuanto al procedimiento de montaje del módulo consiste en enviar los tres elementos fundamentales a instalaciones en campo o lo más cerca posible. Dichos elementos son el parquet de lentes, la carcasa metálica o polimérica y el cassette. En el punto de montaje final se ensamblan estos tres elementos. The cassette is characterized by occupying a very small volume, being therefore much easier to transport than the complete module. As for the module assembly procedure, it consists of sending the three fundamental elements to field installations or as close as possible. These elements are the lens parquet, the metallic or polymeric housing and the cassette. At the final assembly point these three elements are assembled.
Una vez ensamblados y con los equipos pertinentes, como un simulador solar o caracterizador de componentes fotovoltaicos, se realizan las medidas y pruebas para la cualificación del módulo y su instalación  Once assembled and with the relevant equipment, such as a solar simulator or photovoltaic component characterizer, measurements and tests are carried out for the qualification of the module and its installation
Una vez descrita de forma clara la invención, se hace constar que las realizaciones particulares anteriormente descritas son susceptibles de modificaciones de detalle siempre que no alteren el principio fundamental y la esencia de la invención.  Once the invention is clearly described, it is noted that the particular embodiments described above are subject to modifications in detail as long as they do not alter the fundamental principle and essence of the invention.

Claims

REIVINDICACIONES
1. Módulo de concentración solar fotovoltaica que comprende 1. Photovoltaic solar concentration module comprising
una carcasa (1), en cuyo interior están alojados  a housing (1), inside which they are housed
una pluralidad de receptores fotovoitaicos (2) dispuestos en la base de dicha carcasa (1) alineados en filas, e interconectados entre sí, comprendiendo cada uno de ellos  a plurality of photovoidal receivers (2) arranged at the base of said housing (1) aligned in rows, and interconnected with each other, each comprising
- una superficie conductora de receptor (4), sobre la que están dispuestos  - a conductive receiver surface (4), on which they are arranged
- al menos una célula fotovoltaica (5),  - at least one photovoltaic cell (5),
- al menos un diodo de protección (6),  - at least one protection diode (6),
- y los correspondientes conectores del receptor fotovoltaico (2) un parquet de lentes concentradoras (18),  - and the corresponding connectors of the photovoltaic receiver (2) a parquet of concentrating lenses (18),
dispuestas en la parte superior de la carcasa (1), cerrando ésta de forma estanca, en un plano paralelo al de la base con los receptores fotovoitaicos (2),  arranged in the upper part of the housing (1), closing it tightly, in a plane parallel to that of the base with the photovoitic receivers (2),
iguales en número a los receptores fotovoitaicos (2), cada una de las lentes concentradoras (18) dispuesta sobre uno de dichos receptores fotovoitaicos (2),  equal in number to the photovoitaic receptors (2), each of the concentrating lenses (18) arranged on one of said photovoitatic receivers (2),
y una pluralidad de elementos ópticos secundarios (19), dispuestos cada uno de ellos sobre la célula fotovoltaica (5) de cada receptor fotovoltaico (2),  and a plurality of secondary optical elements (19), each arranged on the photovoltaic cell (5) of each photovoltaic receiver (2),
dicho módulo de concentración solar fotovoltaica caracterizado porque comprende un sistema de aislamiento eléctrico de los receptores fotovoitaicos (2) que comprende a su vez, said photovoltaic solar concentration module characterized in that it comprises an electrical isolation system of the photovoidal receivers (2) which in turn comprises,
una pluralidad de piezas de plástico (8), cada una de las cuales aloja al menos un receptor fotovoltaico (2), que comprenden un alojamiento (9) para dicho receptor fotovoltaico (2),  a plurality of plastic parts (8), each of which houses at least one photovoltaic receiver (2), comprising a housing (9) for said photovoltaic receiver (2),
y una interfase térmica (12) dispuesta en el alojamiento (9) de cada una de las piezas de plástico (8), bajo el receptor fotovoltaico (2) que aisla eléctricamente dicho receptor fotovoltaico (2) y actúa de transmisor de calor.  and a thermal interface (12) arranged in the housing (9) of each of the plastic parts (8), under the photovoltaic receiver (2) that electrically isolates said photovoltaic receiver (2) and acts as a heat transmitter.
2. Módulo de concentración solar fotovoltaica, según la reivindicación 1 , caracterizado porque el receptor fotovoltaico (2) queda sujeto a la pieza de plástico (8) mediante al menos una corredera o pieza de clipado (10) que se fija a dicha pieza de plástico (8) y sujeta de forma elástica el receptor fotovoltaico (2) ejerciendo presión uniforme sobre éste. 2. Photovoltaic solar concentration module according to claim 1, characterized in that the photovoltaic receiver (2) is attached to the plastic part (8) by at least one slide or clipping part (10) that is fixed to said piece of plastic (8) and elastically holds the photovoltaic receiver (2) by exerting uniform pressure on it.
3. Módulo de concentración solar fotovoltaica, según la reivindicación anterior, caracterizado porque el sistema de aislamiento eléctrico comprende dos piezas de clipado (10) que se fijan a cada pieza de plástico (8) y sujetan al receptor fotovoltaico (2) en dos laterales opuestos de éste. 3. Photovoltaic solar concentration module according to the preceding claim, characterized in that the electrical insulation system comprises two pieces of clipping (10) that are fixed to each piece of plastic (8) and hold the photovoltaic receiver (2) on two sides opposite of this one.
4. Módulo de concentración solar fotovoltaica, según cualquiera de las reivindicaciones anteriores, caracterizado porque las piezas de clipado (10) deslizan a través de unas cavidades (11) de la pieza de plástico (8). 4. Photovoltaic solar concentration module according to any of the preceding claims, characterized in that the clipping pieces (10) slide through cavities (11) of the plastic part (8).
5. Módulo de concentración solar fotovoltaica, según cualquiera de las reivindicaciones anteriores, caracterizado porque comprende una pluralidad de elementos disipadores de calor (13) longitudinales, dispuestos en la cara externa de la base de la carcasa (1), cada uno de ellos dispuesto bajo una fila de receptores fotovoltaicos (2), comprendiendo cada elemento disipador de calor (13) a su vez una pluralidad de aletas paralelas a las filas de receptores fotovoltaicos (2). 5. Photovoltaic solar concentration module according to any of the preceding claims, characterized in that it comprises a plurality of longitudinal heat dissipating elements (13), arranged on the outer face of the base of the housing (1), each arranged under a row of photovoltaic receivers (2), each heat dissipating element (13) comprising a plurality of fins parallel to the rows of photovoltaic receivers (2).
6. Módulo de concentración solar fotovoltaica, según cualquiera de las reivindicaciones anteriores, caracterizado porque comprende medios de protección contra la radiación solar fuera de foco, que comprenden a su vez una pluralidad de piezas metálicas longitudinales con forma de "U" invertida, dispuestas cada una de ellas sobre una fila de elementos ópticos secundarios (19), teniendo estas piezas de protección off-focus (14) una pluralidad de orificios (15) dispuestos cada uno de ellos sobre cada uno de los elementos ópticos secundarios (19) de la fila, permitiendo el paso de la radiación solar únicamente a los elementos secundarios (19) e impidiendo su paso al resto de partes del módulo. 6. Photovoltaic solar concentration module according to any of the preceding claims, characterized in that it comprises means of protection against out-of-focus solar radiation, which in turn comprise a plurality of inverted "U" shaped longitudinal metal parts, each arranged one of them on a row of secondary optical elements (19), these off-focus protection parts (14) having a plurality of holes (15) each arranged on each of the secondary optical elements (19) of the row, allowing the passage of solar radiation only to the secondary elements (19) and preventing its passage to the rest of the parts of the module.
7. Módulo de concentración solar fotovoltaica, según cualquiera de las reivindicaciones anteriores, caracterizado porque comprende al menos un soporte vertical (16) del parquet de lentes concentradoras (18) que tiene una altura igual a la del módulo de concentración solar fotovoltaica, y que se fija a la base de la carcasa (1) en la parte central del módulo, apoyando sobre dicho soporte vertical (16) el parquet de lentes concentradoras (18). 7. Photovoltaic solar concentration module according to any of the preceding claims, characterized in that it comprises at least one vertical support (16) of the concentrator lens parquet (18) having a height equal to that of the photovoltaic solar concentration module, and which it is fixed to the base of the housing (1) in the central part of the module, resting on said vertical support (16) the parquet of concentrating lenses (18).
8. Módulo de concentración solar fotovoltaica, según cualquiera de las reivindicaciones anteriores, caracterizado porque comprende dos válvulas de ventilación (17) dispuestas en paredes opuestas de la carcasa (1) que impiden la condensación de agua en el interior del módulo, e igualan las presiones existentes en el interior y el exterior de dicho módulo. 8. Photovoltaic solar concentration module, according to any of the preceding claims, characterized in that it comprises two ventilation valves (17) arranged on opposite walls of the housing (1) that prevent the condensation of water inside the module, and equalize the pressures existing inside and outside of said module.
9. Módulo de concentración solar fotovoltaica, según cualquiera de las reivindicaciones anteriores, caracterizado porque la carcasa (1) comprende una pluralidad de caras metálicas plegadas, cortadas y soldadas entre sí. 9. Photovoltaic solar concentration module, according to any of the preceding claims, characterized in that the housing (1) comprises a plurality of folded, cut and welded metal faces.
10. Módulo de concentración solar fotovoltaica, según cualquiera de las reivindicaciones 1 a 8, caracterizado porque la carcasa (1) es una pieza de plástico integral. 10. Photovoltaic solar concentration module according to any one of claims 1 to 8, characterized in that the housing (1) is an integral plastic part.
11. Módulo de concentración solar fotovoltaica, según cualquiera de las reivindicaciones 1 a 8, caracterizado porque la carcasa (1) es una pieza de aluminio estampado integral. 11. Photovoltaic solar concentration module according to any one of claims 1 to 8, characterized in that the housing (1) is an integral stamped aluminum piece.
12. Módulo de concentración solar fotovoltaica según reivindicación 1 caracterizado porque cuenta con uno o varios cassettes desmontables comprendiendo cada cassette: 12. Photovoltaic solar concentration module according to claim 1 characterized in that it has one or more detachable cassettes comprising each cassette:
- un soporte (103);  - a support (103);
- dos tapas laterales (102) que cierran el soporte (103) por su parte frontal y su parte posterior,  - two side covers (102) that close the support (103) at its front and back,
- sistema de protección off-focus (14): una pieza superior de la misma longitud que el soporte (103) que sirve como medio de protección contra la radiación solar fuera de foco y como cerramiento final del soporte para tener el sistema encapsulado, y albergando dicho cassette en su interior:  - off-focus protection system (14): an upper part of the same length as the support (103) that serves as a means of protection against out-of-focus solar radiation and as a final closure of the support to have the system encapsulated, and housing said cassette inside:
- una pieza metálica de sujección (104) compuesta por unos puntos de apoyo y fijación con respecto a la pieza de plástico (8) del sistema de aislamiento eléctrico, - a metal fastening part (104) composed of support and fixing points with respect to the plastic part (8) of the electrical insulation system,
- elementos ópticos secundarios (19), debidamente sujetos a los receptores fotovoltaicos (2), estando dichos receptores interconectados entre sí, - secondary optical elements (19), duly subject to photovoltaic receivers (2), said receivers being interconnected with each other,
- receptores fotovoltaicos (2), - un sistema de aislamiento eléctrico formado por una pieza de plástico (8) y una inferíase térmica (12) y - photovoltaic receivers (2), - an electrical insulation system consisting of a piece of plastic (8) and a thermal infer (12) and
- correderas o piezas de clipado (10).  - sliding or clipping parts (10).
13. Módulo de concentración solar fotovoltaica, según reivindicación 12, caracterizado porque el soporte (103) tiene sección rectangular y está abierto por una de las bases y comprende unos disipadores de calor (13). 13. Photovoltaic solar concentration module according to claim 12, characterized in that the support (103) has a rectangular section and is opened by one of the bases and comprises heat sinks (13).
14. Módulo de concentración solar fotovoltaica, según reivindicación 12, caracterizado porque la pieza superior del sistema de protección off-focus (14) es un perfil extruido de sección rectangular. 14. Photovoltaic solar concentration module according to claim 12, characterized in that the upper part of the off-focus protection system (14) is an extruded profile of rectangular section.
15. Módulo de concentración solar fotovoltaica, según reivindicación 12, caracterizado porque la pieza metálica de sujección (104) comprende una zona circular que circunvala el reborde del elemento óptico secundario (19) y una zona superior formada por unos puntos de apoyo que impiden el movimiento lateral del elemento óptico secundario (19). 15. Photovoltaic solar concentration module, according to claim 12, characterized in that the metal clamping part (104) comprises a circular zone that circumvents the flange of the secondary optical element (19) and an upper area formed by support points that prevent the lateral movement of the secondary optical element (19).
16. Módulo de concentración solar fotovoltaica, según reivindicación 2, caracterizado porque las correderas o piezas de clipado (10) se fabrican en resina de poliéster. 16. Photovoltaic solar concentration module according to claim 2, characterized in that the slides or clipping pieces (10) are made of polyester resin.
17. Módulo de concentración solar fotovoltaica, según reivindicación 2, caracterizado porque las correderas o piezas de clipado (10) se fabrican como parte de la pieza de plástico del aislamiento eléctrico (8). 17. Photovoltaic solar concentration module according to claim 2, characterized in that the sliding or clipping parts (10) are manufactured as part of the plastic part of the electrical insulation (8).
PCT/ES2012/000079 2011-04-01 2012-03-30 Photovoltaic solar concentration module WO2012131123A1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
ESP201130522 2011-04-01
ES201130522A ES2396785B1 (en) 2011-04-01 2011-04-01 PHOTOVOLTAIC SOLAR CONCENTRATION MODULE.
ES201101144A ES2404667B8 (en) 2011-10-21 2011-10-21 SOLAR PHOTOVOLTAIC CONCENTRATION MODULE, IMPROVED.
ESP201101144 2011-10-21

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Publication Number Publication Date
WO2012131123A1 true WO2012131123A1 (en) 2012-10-04

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PCT/ES2012/000079 WO2012131123A1 (en) 2011-04-01 2012-03-30 Photovoltaic solar concentration module

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5118361A (en) * 1990-05-21 1992-06-02 The Boeing Company Terrestrial concentrator solar cell module
US20090120500A1 (en) * 2007-11-14 2009-05-14 Eric Prather Solar cell package for solar concentrator
US20090159125A1 (en) * 2007-12-21 2009-06-25 Eric Prather Solar cell package for solar concentrator
US20100037935A1 (en) * 2008-02-11 2010-02-18 Emcore Solar Power, Inc. Concentrated Photovoltaic System Modules Using III-V Semiconductor Solar Cells

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5118361A (en) * 1990-05-21 1992-06-02 The Boeing Company Terrestrial concentrator solar cell module
US20090120500A1 (en) * 2007-11-14 2009-05-14 Eric Prather Solar cell package for solar concentrator
US20090159125A1 (en) * 2007-12-21 2009-06-25 Eric Prather Solar cell package for solar concentrator
US20100037935A1 (en) * 2008-02-11 2010-02-18 Emcore Solar Power, Inc. Concentrated Photovoltaic System Modules Using III-V Semiconductor Solar Cells

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