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    • 专利摘要:
    SUMMARY A laminated photovoltaic thermal (PV / T) module (10) for a PV / T hybrid solar collector comprising a cooler / absorber (20) and a photovoltaic unit. The cooler / absorber (20) comprises at least one flat surface (21) with raised peripheral edges (22) and is adapted to function as a mold for a photovoltaic laminate structure (30). The photovoltaic unit comprises a photovoltaic laminate structure including: a first layer (31) of a first laminate material cast on the flat surface of the cooler / absorber (20), the first laminate material being electrically insulating and having a high thermal conductivity; a plurality of photovoltaic cells (33) positioned on the first layer of laminate material; and a second layer (32) of a second laminate material cast on and substantially tacking the photovoltaic cells (33), the second laminate material being transparent and having a high heat resistance.
    公开号:SE1450519A1
    申请号:SE1450519
    申请日:2014-04-30
    公开日:2015-10-31
    发明作者:Stefan Larsson
    申请人:Solarus Sunpower Sweden Ab；
    IPC主号:
    专利说明:

    FIELD OF THE INVENTION The present invention relates to a laminated photovoltaic thermal (PV / T) module for a photovoltaic thermal hybrid solar collector, a PV / Thybrid solar collector comprising such a laminated PV / T / T-module.
    Technical background There are a number of PV / T hybrid solar collector systems that use PV / T modules to convert solar energy into electrical energy. The efficiency of solar cells or photovoltaic cells continues to improve while costs continue to be reduced, thus turning solar energy into a working source of renewable and environmentally friendly energy.
    Conventional PV / T nodules are made by encapsulating highly scorched solar cells in a laminate structure to protect them from optical and mechanical damage due to continuous exposure to sunlight and water elements. In addition, PV / T modules include a cooling / absorption element that contains fluid to dissipate the heat that accumulates in the solar cells, which affects the performance of the solar cell. However, in order to achieve efficiency in a PV / T hybrid solar collector, it is necessary to reach a certain minimum temperature having the cooling / absorption fluid at the same time as the output voltage of the photovoltaic cells decreases with increasing temperature. This dual functionality places strict demands on the materials used in the PV / T module.
    Examples of such PV / T modules are described in EP 2 405 489, DE 198 09 883 and WO 2011/146029, which are incorporated herein by reference. These kanda PV / T modules are typically made with laminate layers of polymer films which include e.g. ethylene vinyl acetate (EVA), fluoropolymers such as polyvinyl fluoride (PVF) or polyvinyl butyral (PVB) and / or silicone polymers. The polymer films are cut and placed so that the solar cells are laid between two polymer layers of EVA, PVF and / or PVB and then the layers are laminated together in a vacuum at a suitable temperature. The laminated solar cell structure is then subsequently integrated with the cooling 2 / absorption element in the form of a heat transfer plate or heat exchanger which has for the passage of a cooling fluid.
    However, depending on the significant temperature gradients over the PV / T module, especially in coolers with fluid channels separated by flanges such as DE 198 09 883 and WO 2011/146029, the thermal expansion that the cooler and solar cells undergo varies and can cause damage to the solar cells and laminate layers produced. of polymer films, such as deformation, cracking, delamination, separation than the cooling element and so on and also limit the efficiency of the solar cells.
    Consequently, there is a need to develop improved PV / T modules and manufacturing procedures therefor.
    SUMMARY OF THE INVENTION The object of the present invention is to provide improved PV / T modules for PV / T hybrid solar collectors and manufacturing methods therefor.
    This is achieved by a lannined photovoltaic thermal (PV / T) nodule for a photovoltaic thermal hybrid solar collector according to claim 1, comprising a cooler / absorber and a photovoltaic unit. The cooler / absorber comprises at least one flat surface with raised peripheral edges and adapted to function as a mold for a photovoltaic laminate structure. The photovoltaic unit comprises a photovoltaic laminate structure which includes: a first layer of a first laminate material cast on the flat surface of the radiator / absorber, the first laminate material being electrically insulating and having a high thermal conductivity; a plurality of photovoltaic cells positioned on the at least partially cured first layer of laminate material; and a second layer of a second laminate material cast on and substantially tacking the photovoltaic cells, the second laminate material being transparent and having a high heat resistance, preferably up to a temperature of at least 200 ° C.
    By providing a cooler / absorber with raised peripheral edges, a functional mold (a bathtub) is formed which can be used to mold a photovoltaic laminate structure using liquid laminate material by a molding process. The laminate structure thus provided provides stronger protection against damage caused by thermal expansion as the layers formed of the liquid laminate material can be applied more uniformly to the surface of the cooler / absorber and the photovoltaic cells and also provide better adhesion to and photovoltaic cells. A further advantage is that the photovoltaic laminate structure can be designed directly on the cooler / absorber as opposed to conventional PV / T modules where the laminate structure is designed separately and then added to or attached to the cooling element. It has also been found that the laminar-shaped photovoltaic structure designed in accordance with the present invention provides better protection against moisture in humid conditions.
    In a preferred embodiment, the PV / T module further comprises a second photovoltaic laminate structure cast on an opposite substantially identical planar surface of the cooler / absorber, the first and second photovoltaic laminate structures being substantially identical. Such a double-sided PV / T module can be used with a solar reflector to direct sunlight onto the sides of the PV / T module to increase efficiency.
    In an alternative embodiment, the radiator / absorber and the first lananate material comprise a transparent material so that both the front and back of the photovoltaic cells can be illuminated with sunlight. Preferably, the transparent material comprises polyurethane or other material which is heat resistant in the range 100-200 ° C and is resistant to ultraviolet straining over 1000 W / m 2. As the sunlight is allowed to illuminate the photovoltaic cells Than both the front and back sides, the total concentration factor for the PV / T module is doubled compared to the case that uses two rows of photovoltaic cells on opposite sides.
    In a further preferred embodiment, the first and / or second laminate material comprises siloxane or polyurethane. Siloxanes are organic silicon compounds with elastomeric properties that provide the necessary mechanical protection of the photovoltaic cells from shocks or vibration as well as ensure excellent adhesion between the laminate layers. An example is polydimethylsiloxane (PDMS), which in liquid form is viscoelastic, which means that during long river periods it acts as a viscous liquid to thank a surface and shape itself after any surface imperfections. Siloxanes also offer excellent heat resistance, up to 200 ° C, while allowing high thermal conductivity as well as being electrically insulating. Compounds containing siloxane can be made transparent for optical and / or ultraviolet straining. Furthermore, siloxane-containing compounds used in the laminate-shaped photovoltaic structure of the present invention are cheaper and more durable than conventional materials used in photovoltaic applications, such as EVA, PVF and PTFE. In highly accelerated stress tests (HAST), the photovoltaic laminate structure of the present invention remained intact for up to 300 hours, compared to 30 minutes for conventional laminate structures.
    It has been found that similar lamination properties can be achieved by compounds containing polyurethane (PU).
    In an advantageous embodiment, the photovoltaic cells are arranged in rows of photovoltaic cells and the PV / T module further comprises a bypass diode connected between each row of photovoltaic cells and embedded in the photovoltaic laminate structure. Preferably, the bypass diodes further comprise direct current / direct current converters which are also embedded in the photovoltaic laminate structure. During morning / evening when the sun is low, the PV / T module is usually partially shaded, as the sunlight reaches the module at right angles. The resulting low light intensity shuts off the action of virtually all the photovoltaic cells in the module. The bypass diodes reduce the shading effects so that the PV / T module only loses the power in the shaded rows of photovoltaic cells. In addition, since the bypass diodes and the DC / DC converters are embedded in the photovoltaic laminate structure, they will be protected and cooled at the same level as the photovoltaic cells.
    In a further preferred embodiment, the rows of photovoltaic cells are connected in series to form at least one series-connected circuit. Preferably, the rows of photovoltaic cells are connected to form at least two series-connected circuits connected in parallel. This parallel connection of the rows of photovoltaic cells makes it possible to reduce the partial shading to below 50% of the opening area of the PV / T module, ie. at least (:) / 0 of the PV / T module is effective, for 6kadad efficiency under shaded conditions. The shading effect decreases with increasing number of rows and parallel circuits, which thus ensures that the performance of the PV / T module is maintained at a high level.
    In an alternative embodiment, the cooler / absorber comprises a plurality of longitudinal fluid channels adapted to provide a fluid dynamically evenly distributed fluid flow. Preferably, the fluid channels have a substantially elliptical or circular cross-sectional shape. Tests have shown that by adapting the cross-sectional shape and size of the fluid channels, it is possible to achieve an evenly distributed fluid flow which provides an excellent cooling effect and close to isothermal temperature over the cooler / absorber.
    In a preferred embodiment, the fluid channels comprise a honeycomb or rhombic structure on the surface, which facilitates longitudinal movement of the fluid in the fluid channels. Preferably, the system is created of fluid channels by extrusion of a metal alloy, such as aluminum or the like, or a polymer, preferably polyurethane (PU), and the fluid channels are adapted to withstand hydraulic pressures in the range 1-25 bar.
    In an advantageous embodiment, the PV / T module further comprises at least one pipe connector having a first distribution section with a plurality of openings adapted to be connected to the fluid channels of the radiator / absorber and a second section with an adaptable inlet opening in fluid communication with the first section. The pipe connector can be made by casting metal or polymeric material and is adapted to evenly distribute the fluid flow into and out of the fluid channels by pressure drop or pressure equalization distribution. The inlet opening may be in the form of a nozzle with inwardly projecting flanges which can be milled down to the desired size and shape to regulate or equalize fluid flow.
    Furthermore, the pipe connector is designed so that it can be connected to a fluid hose / pipes with a quick coupling function, e.g. for trapezoidal metal hoses or rudder parts with 0-ring support.
    In a second aspect of the present invention there is provided a method of manufacturing a laminated PV / T module for a PV / T hybrid solar collector, comprising the steps of: providing a cooler / absorber having at least one flat surface with raised peripheral edges and adapted to operate as a mold for a photovoltaic laminate structure; holding a first layer of a first laminate material in liquid form on the flat surface of the cooler / absorber, the first laminate material being electrically insulating and having a high thermal conductivity; at least partially curing the first layer of the first laminate material by applying heat; positioning a plurality of photovoltaic cells on the at least partially cured first layer of laminate material; 6 lining a second layer of a second laminate material in liquid form on the photovoltaic cells so that they are substantially thanked by the second laminate material, the second laminate material being transparent and having a high heat resistance; curing the second layer of the second laminate material and the at least partially cured first layer of the first laminate material by applying heat.
    In preferred embodiments, the method includes steps and features similar to the embodiments presented above.
    Brief Description of the Drawings Fig. 1 shows an elevated side view of a laminated photovoltaic thermal (PV / T) module according to the present invention. Fig. 2 shows an exploded view of a laminated PV / T module according to the present invention; Fig. 3 shows a cross-sectional view of a cooler / absorber according to an embodiment of the present invention; Fig. 4 shows a perspective view of a rudder connector according to an embodiment of the present invention; Fig. 5 shows a perspective view of a PV / T module according to the present invention including pipe connectors; Fig. 6 shows a PV / T module including a convection latch according to an embodiment of the present invention; and Fig. 7 shows a circuit diagram of rows of photovoltaic cells according to an embodiment of the present invention.
    Detailed Description of the Invention Hereinafter, the laminated PV / T module 10 and the manufacturing process therefor will be described in more detail, with reference to the figures. However, the invention is not to be construed as limited to the embodiment or embodiments shown in the figures and described below, but may be varied within the scope of the claims.
    In Fig. 1, a laminated PV / T module 10 according to the present invention is shown in a raised side view. Fig. 2 shows the separate laminate layers 31, 32 and the photovoltaic cells 33 in an exploded view for a simpler understanding of the invention. The PV / T module 10 includes a cooler / absorber 20 and a photovoltaic unit 30 having a plurality of photovoltaic or solar cells 33 encapsulated in a laminate structure for protection. The advantages of the PV / T module 10 will now be explained.
    In contrast to conventional PV / T modules with laminated solar cells, the present invention describes a structure in which the photovoltaic laminate structure 30 is prefabricated or fabricated directly on the surface 21 of the radiator / absorber 20, instead of being prefabricated separately and later joined or integrated with the radiator / absorber. 20.
    As can be seen from Fig. 2, the radiator / absorber 20 has raised edges 22 at least along the longitudinal sides thereof, which gives a functional mold. The raised edges 22 create an encapsulation which allows liquid to be retained therein, which is advantageous when pouring and casting the laminate layers 31, 32. The cooler / absorber 20 is shown to have raised peripheral edges 22 on both sides, top and bottom. This is to enable the casting of lamellae-shaped photovoltaic structures 30, 35 both on the top and bottom to increase efficiency and space utilization.
    Positioned closest to the smooth top surface 21 of the cooler / absorber 20 is an electrically insulating first layer 31 of a first laminate material which has been cast in liquid form and then at least partially cured by application of heat. The first laminate layer 31 is 0.2 to 2 mm thick and has a high thermal conductivity, in the range of 0.1-10 Wrn-1K-1 to dissipate heat generated in the photovoltaic cells 33. This is done to ensure that they photovoltaic cells 33 do not exceed their stagnation temperature when efficiency is reduced. The first laminate material is adapted to be heat resistant to temperatures above 150 ° C, preferably at least 200 ° C. The necessary insulation power provided by the first laminate layer 31 is at least 10 GO at 5 kV. The dielectric half-strength is at least 18 kV / mm.
    Closest to the surface 21 of the cooler / absorber 20 are a plurality of photovoltaic cells 33 in rows positioned on top of the electrically insulating first laminate layer 31. Highly commercially available photovoltaic cells 33 with high efficiency and short distance between the contact fingers can be used. As an example, the use of Hitachi photovoltaic cells with a high filling factor and transparent face contact is proposed. The PV / T module 10 may have at least 2 rows of photovoltaic cells 33, each row 36 including a plurality of photovoltaic cells 33 to achieve sufficient output voltage, typically 34 photovoltaic cells or more. The photovoltaic cells 33 are formed as thin strips and placed perpendicular to the longitudinal direction of the radiator / absorber with a length adapted to the width of the radiator / absorber 20. This leads to a very reduced thermal load on the photovoltaic cells 33 and helps to avoid all injuries. In one embodiment, the width of the photovoltaic cells 33 is 26.6 mm.
    Farthest Than surface 21 of the cooler / absorber 20 is finally provided with a second tack layer 32 of a transparent second laminate material to tack and protect the photovoltaic cells 33. The tack layer 32 is held and cast on top of the photovoltaic cells 33 and has the advantage to fill small pockets between and around the photovoltaic cells 33 to provide a substantially flat and homogeneous topsheet as opposed to the case of lanninate structures created by polymer films extending over the solar cells. Furthermore, the filling layer 32 is heat resistant to a tin temperature of at least 200 ° C.
    The selected materials for the first and second laminate layers 31, 32 preferably comprise siloxanes and / or polyurethane (PU). Siloxanes are a functional group in organosilicon chemistry with a Si-O-Si bond, ie. habit pair of silicon centers are separated by an oxygen atom. The siloxane-containing compounds tested and used in the present invention, although an organic material, do not behave as such. First, siloxane-containing laminate layers exhibit negligible reactions after prolonged exposure to ultraviolet straining, as opposed to conventional EVA laminates, which begin to dry and turn yellow. Siloxane-containing laminates have a higher transmittance in the spectrum of relevant wavelengths, about 93-96% transmittance tan about 300 nm to about 1200 nm, and no significant peaks and valleys, as opposed to EVA, which has a transmittance of about 90% and decreases significantly when the infrared range is approaching. The proposed siloxane-containing compounds have a short curing time when heated by application of heated fluid through the cooler / absorber 20. Finally, siloxane-containing compounds exhibit high electrical resistance, 2 * 10150, and dielectric strength of 18.3 kV / mm.
    In Fig. 3, a cooler / absorber 20 according to an embodiment of the present invention is illustrated in cross section. The peripheral side edges 22 are shown as well as the system of fluid channels 23 formed in the cooler / absorber 20. The cross-sectional shape of the fluid channels 23 has been adapted to provide an evenly distributed fluid dynamic fluid flow through the fluid channels 23. Tests have shown that to achieve optimal cooling / absorption of / from the photovoltaic cells 33, the fluid channels 23 should have a substantially elliptical cross-section which provides excellent cooling properties and near isothermal surface temperatures. In contrast to fluid channels 23 of rectangular or square cross-section, no movement of the cooler / absorber 20 is observed at the high hydraulic pressure of the cooling / absorption fluid used in the PV / Thybrid application. Therefore, no load is transferred to the photovoltaic cells 33, which would otherwise cause significant damage. Circular cross-sections also do not give rise to transmission of movements in the radiator / absorber 20. However, elliptical cross-sections are preferred because this shape allows thinner coolers / absorbers with the same cross-sectional area compared to circular fluid channels 23, which thus require less material. This minimizes the temperature gradient across the PV / T module, which reduces thermal load and load on the photovoltaic cells 33 and makes it possible for the photovoltaic cells 33 to operate under ideal conditions with full efficiency.
    The surface of the fluid channels 23 can be treated to optimize fluid flow, e.g. by providing a honeycomb or rhombic structure. This surface structure can then be coated with a suitable material to reduce friction, such as polytetrafluoroethylene (PTFE).
    Since the pressure of the fluid passing through the fluid channels 23 can be elevated, the fluid channels 23 are adapted to withstand a hydraulic pressure of between 1 and 25 bar.
    The cooler / absorber 20 which includes the system of fluid channels 23 is created by extruding a metal alloy, e.g. aluminum, or a polymer, e.g. polyurethane (PU), in applications where the radiator / absorber 20 Ors transparent for double-sided lighting with sunlight.
    To connect the PV / T module 10 to a closed or open loop with cooling / absorption fluid, a rudder connector 50 is provided which is adapted to be attached to the faces of the radiator / absorber 20. The rudder connector 50 comprises, as illustrated in Fig. 4, a distribution section 51 having substantially the same width as the cooler / absorber 20 and a plurality of openings 53 adapted to the fluid channels 23. The fluid flow through the distribution section 51 is evenly distributed by pressure drop or pressure equalization distribution.
    In fluid communication with the distribution section 51, there is a second inlet / outlet section 52 with an adjustable inlet / outlet opening 54 which is to regulate or equalize the fluid flow therethrough. The inlet / outlet opening 54 can take the form of a nozzle with inwardly projecting flanges 55 which can be milled down to the desired dimension.
    Fig. 5 shows the PV / T module 10 connected at its end sections to pipe connectors 50. The inlet / outlet port 54 can be seen, as can the flanges 55.
    The pipe connector 50 is designed to be attached to fluid pipes or hoses through a quick coupling function, e.g. trapezoidal metal hoses or rudder parts for quick connection with a 0-ring fitting, as is the edge within the technical line.
    Fig. 6 shows a transparent convection latch 60 arranged above the PV / T module 10. The convection latch 60 is formed with a plurality of partially cylindrical elements or half-tubes 61 arranged perpendicular to the longitudinal direction of the PV / T module 10. The partially cylindrical elements 61 are connected utnned their respective valley regions 62. The purpose of the convection barrier 60 is to reduce heat losses at high temperatures so that the heat is transferred to the cooling / absorption fluid instead. The convection lock 60 is adapted to be attached to the edge profile of the radiator / absorber, e.g. in a spar, above the laminate-shaped photovoltaic structure 30.
    Fig. 7 shows a connection diagram for the rows 36 of photovoltaic cells 33. The PV / T module 10 shown has 8 cell rows 36 with 38 photovoltaic cells each, internally connected in parallel. Each row section 36 has a bypass diode 40 placed in the 10 and sections of the PV / T module. Each photovoltaic cell is connected by soldering at two points on the upper or lower side, respectively, thus relieving all load on the photovoltaic cells 33.
    The lamination process will now be described in more detail. In contrast to conventional lamination using polymer films, the present invention is based on casting to encapsulate the photovoltaic cells 33 and create a protective laminate structure 30. In the casting process, the photovoltaic unit is filled with a solid or gelled substance to resist bumps and vibrations, and for exclusion of moisture and corrosive annn. First, the cooler / absorber 20 is prepared for lamination by subjecting the flat surface 21 to be coated for ultrasonic cleaning to remove any foreign particles and then applying a coating of a primer solution to the flat surface 21, e.g. propanol with optional additives. Then the cooler / absorber 20 is cooled to a temperature below 30 ° C.
    Now, the first layer 31 of the first laminate material is formed on the pretreated surface 21 of the cooler / absorber 20 by holding an electrically insulating polymeric material in liquid form on the surface 21. The peripheral edges 22 of the cooler / absorber 20 retain the liquid first laminate material. in the thus created mold to provide an electrically insulating layer 31 of homogeneous thickness in the range of 0.2 to 2 mm. Since the first layer 31 is also intended to dissipate heat from the photovoltaic cells 33, it is undesirable to use a material having a high thermal conductivity, preferably in the range 0.1-10 Wrn-licl. Preferably, the first laminate material comprises a siloxane in liquid form. A protective cover is placed on top of the first layer 31 and negative pressure is applied with a vacuum seal.
    When substantially all of the gas has been evacuated - From the liquid material and the space above, heat is applied in the temperature range of 60-140 ° C to at least partially cure the first layer 31. By leaving the first layer 31 partially cured before casting the second laminate layer 32, the two laminate layers 31, 32 to adhere even better to each other. Of course, it is also proposed within the scope of the present invention to completely harden the first layer 31 in order to obtain a material in solid form and having a shore hardness in the range 30-80, preferably 45-65. Advantageously, heat can be applied by passing a heated liquid through the fluid channels 23 in the cooler / absorber 20 to provide short curing time, which allows short production times. Heat can alternatively or additionally be supplied from a separate heat source such as infrared and / or ultraviolet light.
    After the curing process of the first layer 31 is completed, the lid is opened and a row 36 of photovoltaic cells 33 is placed on the at least partially cured first layer 31, which now forms an electrical insulator for the photovoltaic cells 33. The row 36 is connected to its respective spirits. to circuit boards that include protective circuits and connection cables and / or connectors. At this stage, the second layer 32 of the second laminate material is formed on top of the row 36 of photovoltaic cells 33 positioned on the at least partially cured first layer 31 by holding a polymeric material in liquid form on the photovoltaic cells 33 and the underlying electrical insulation layer 31 until they the photovoltaic cells 33 are at least substantially thanked. The height of the peripheral edges 22 of the cooler / absorber 20 is adapted to the thickness of the photovoltaic laminate structure 30 so that the liquid second laminate material is also retained in the mold.
    Preferably, the distribution of the liquid second laminate material is performed by holding the entire volume of liquid over the row 36 of photovoltaic cells 33 in a rapid motion along the center line of the photovoltaic cells 33 in a longitudinal direction of the PV / T module 10. This rapid placement of the liquid second laminate material, which can be formed by means of a robot arm, creates a wall or cradle of liquid which flows towards the side edges 22 so that all air is evacuated towards the side edges 22.
    The steps of curing the first laminate material are then repeated by laying the protective cover back over the second layer 32 and applying a negative pressure with the aid of the vacuum pump. Thereafter, heat is applied to cure the second layer 32 to a solid material having a shore hardness in the range of 30-80, preferably 45-65. Advantageously, heat can be applied by passing a heated liquid through the fluid channels 23 in the cooler / absorber 20.
    When the final heating step is completed and the second laminate material in the second layer 32 and the at least partially cured first layer 31 of the first laminate material have cured, the cooler / absorber 20 including the laminated photovoltaic structure 30 can be moved to the next process step of the manufacturing process. 13
    权利要求:
    Claims (29)
    [1]
    A laminated photovoltaic thermal (PV / T) module (10) for a PV / T hybrid solar collector comprising a cooler / absorber (20) and a photovoltaic unit, characterized in that: the cooler / absorber (20) comprises at least one flat surface (21) having raised peripheral edges (22) and adapted to act as a mold for a photovoltaic laminate structure (30); the photovoltaic unit comprises a photovoltaic laminate structure (30) including: a first layer (31) of a first laminate material cast on the flat surface (21) of the cooler / absorber (20), the first laminate material being electrically insulating and having a high thermal conductivity; a plurality of photovoltaic cells (33) positioned on the first layer (31) of laminate material; and a second layer (32) of a second laminate material cast on and substantially tacking the photovoltaic cells (33), the second laminate material being transparent and having a high heat resistance.
    [2]
    The PV / T module of claim 1, further comprising a second photovoltaic laminate structure (35) cast on an opposite substantially identical planar surface of the cooler / absorber (20), the first and second photovoltaic laminate structures (30, 35) are essentially identical.
    [3]
    The PV / T module of claim 1, wherein the cooler / absorber (20) and the first laminate material comprise a transparent material so that both the front and back of the photovoltaic cells (33) can be illuminated with sunlight.
    [4]
    A PV / T module according to any one of the preceding claims, wherein the first and / or second laminate material comprises siloxane or polyurethane.
    [5]
    A PV / T module according to any preceding claim, wherein the photovoltaic cells (33) are arranged in rows (36) of photovoltaic cells (33) and further comprising a bypass diode (40) connected between each row (36). ) of photovoltaic cells (33) and embedded in the photovoltaic laminate structure (30).
    [6]
    The PV / T module of claim 5, wherein the bypass diodes (40) further comprise DC / DC converters embedded in the photovoltaic laminate structure (30).
    [7]
    The PV / T module according to the patent claims, wherein the rows (36) of photovoltaic cells (33) are connected in series to form at least one series 10 connected circuit.
    [8]
    A PV / T module according to any one of the preceding claims, wherein the rows (36) of photovoltaic cells (33) are connected to form at least two series-connected circuits connected in parallel.
    [9]
    A PV / T module according to any one of the preceding claims, wherein the cooler / absorber (20) comprises a plurality of longitudinal fluid channels (23) adapted to provide a fluid dynamically evenly distributed fluid flow.
    [10]
    The PV / T module of claim 9, wherein the fluid channels (23) have a substantially elliptical or circular cross-sectional shape.
    [11]
    A PV / T module according to claim 9 or 10, wherein the fluid channels (23) comprise a honeycomb or rhombic structure on the surface.
    [12]
    A PV / T module according to any one of claims 9-11, further comprising at least one wire connector (50) having a first distribution section (51) having a plurality of openings (53) adapted to be connected to the fluid channels (23) and a second section ( 52) with an adaptable inlet opening (54) in fluid communication with the first section (51).
    [13]
    A PV / T module according to any one of claims 9-12, wherein the fluid channels (23) are formed by extrusion of a metal alloy, preferably aluminum, or a polymer, preferably polyurethane (PU).
    [14]
    A PV / T module according to any preceding claim, further comprising a transparent convection barrier (60) arranged above the photovoltaic cells (33).
    [15]
    A PV / T hybrid solar collector comprising a PV / T module (10) according to any one of the preceding claims.
    [16]
    A method of manufacturing a laminated photovoltaic thermal (PV / T) module (10) for a PV / T hybrid solar collector, characterized by the steps of: providing a cooler / absorber (20) having at least one flat surface (21) with raised peripheral edges (22) and adapted to act as a mold for a photovoltaic laminate structure (30); holding a first layer (31) of a first laminate material in liquid form on the flat surface (21) of the cooler / absorber (20), the first laminate material being electrically insulating and having a high thermal conductivity; at least partially curing the first layer (31) of the first laminate material by applying heat; positioning a plurality of photovoltaic cells (33) on the at least partially cured first layer (31) of the first laminate material; holding a second layer (32) of a second laminate material in liquid form on the photovoltaic cells (33) so that they are substantially covered by the second laminate material, the second laminate material being transparent and having a high heat resistance; curing the second layer (32) of the second laminate material and the at least partially cured first layer (31) of the first laminate material by applying heat.
    [17]
    The method of claim 16, further comprising the steps of casting a second photovoltaic laminate structure (35) on an opposite substantially identical planar surface of the cooler / absorber (20), the first and second photovoltaic laminate structures (30, 35) being substantially identical. 16
    [18]
    The method of claim 16, wherein the cooler / absorber (20) and the first laminate material comprise a transparent material such that both the front and back of the photovoltaic cells (33) can be illuminated with sunlight.
    [19]
    A method according to any one of claims 16-18, wherein the first and / or second laminate material comprises siloxane or polyurethane.
    [20]
    The method of any of claims 16-19, wherein the photovoltaic cells (33) are arranged in rows (36) of photovoltaic cells (33) and the method further comprises connecting a bypass diode (40) between the usual row (36) of photovoltaic cells. cells (33) before pouring the second layer (32) of the second laminate material.
    [21]
    The method of claim 18, further comprising providing a DC / DC converter connected to each bypass diode (40) prior to pouring the second layer (32) of the second laminate material.
    [22]
    A method according to any one of claims 15-19, wherein the rows (36) of photovoltaic cells (33) are connected in series to form at least one series-connected circuit.
    [23]
    A method according to any one of claims 15-20, wherein the rows (36) of photovoltaic cells (33) are connected to form at least two series-connected circuits connected in parallel.
    [24]
    The method of any of claims 15-21, wherein the cooler / absorber (20) comprises a plurality of longitudinal fluid passages (23) adapted to provide a fluid dynamically evenly distributed fluid flow and further comprising passing a heated fluid through the fluid passages (23) to cure the first and / or second laminate material.
    [25]
    The method of claim 22, wherein the fluid channels (23) have a substantially elliptical or circular cross-sectional shape. 17
    [26]
    A method according to claim 22 or 23, wherein the fluid channels (23) comprise a honeycomb-shaped or rhombic structure on the surface.
    [27]
    The method of any of claims 15-24, further comprising providing at least one pipe connector (50) having a first manifold section (51) having a plurality of openings (53) adapted to be connected to the fluid channels (23) and a second section ( 52) with an adaptable inlet opening (54) in fluid communication with the first section (51).
    [28]
    A method according to any one of claims 15-25, wherein the fluid channels (23) are formed by extruding a metal alloy, preferably aluminum, or a polymer, preferably polyurethane (PU).
    [29]
    The method of any preceding claim, further comprising arranging a transparent convection barrier (60) above the photovoltaic cells (33). 2/4 23
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    SE1450519A|SE539036C2|2014-04-30|2014-04-30|Photovoltaic thermal hybrid solar collector|SE1450519A| SE539036C2|2014-04-30|2014-04-30|Photovoltaic thermal hybrid solar collector|
    PCT/SE2015/050450| WO2015167389A1|2014-04-30|2015-04-20|Photovoltaic thermal hybrid solar collector|
    US15/307,707| US10594255B2|2014-04-30|2015-04-20|Photovoltaic thermal hybrid solar collector|
    RU2016143911A| RU2678703C2|2014-04-30|2015-04-20|Photovoltaic thermal hybrid solar collector|
    AU2015253858A| AU2015253858B2|2014-04-30|2015-04-20|Photovoltaic thermal hybrid solar collector|
    BR112016025207A| BR112016025207A2|2014-04-30|2015-04-20|laminated photovoltaicthermal module for a pv / t hybrid solar collector, pv / t hybrid solar collector and method of manufacturing laminated photovoltaicthermal modules|
    EP15721053.5A| EP3138194A1|2014-04-30|2015-04-20|Photovoltaic thermal hybrid solar collector|
    CN201580021501.0A| CN106664057B|2014-04-30|2015-04-20|Photovoltaic hot mixing solar collector|
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