Solar cell and radiator integral component
Technical field
The present invention relates to a kind of solar module, particularly a kind of solar cell and radiator integral component belong to technical field of solar utilization technique.
Background technology
Along with industrialized fast development, environmental pollution day by day aggravates and the resource reserve economic long-term stability development of influence that falls sharply more and more.Solar energy is a kind of regenerative resource of cleanliness without any pollution, and is inexhaustible; fully development and use solar energy not only can be saved exhausted day by day conventional energy resource; alleviate severe shortage of resources problem, but also can reduce pollution, the human biological environment of depending on for existence of protection.The development and use of the regenerative resource of taking as the leading factor with solar energy will become the most potential field of running neck and neck with biology, information, material in 21st century.Development and use solar energy has become a big theme of international affairs and the grand strategy decision-making of countries in the world sustainable development.
In numerous solar utilization techniques, solar photovoltaic technology has realized being electric energy with conversion of solar energy directly, it is a kind of mode of utilizing of most convenient, it have safe and reliable to operation, need not fuel, noiseless, pollution-free, can utilize on the spot, need not to set up advantages such as power transmission and transforming equipment, working service is easy, scale is changeable, thereby be subjected to the attention of countries in the world.Photovoltaic generation development in recent years is rapid, and solar cell yield in 2009 is 9.34GW, installed capacity 6.43GW, and total installation of generating capacity surpasses 20GW.IEA estimates that the year two thousand forty solar energy power generating will account for 20% of human needs's energy, and the development space of photovoltaic power generation technology is very wide.
When conventional solar module obtained large-scale application, the novel solar battery assembly also emerged in an endless stream.As light-concentrating solar cell components, this assembly can be used in the light gathering photovoltaic power generating system, method by tracing collection, increase the solar light irradiation intensity that solar cell is accepted, make the solar cell of same quantity produce more electric energy, and the cost of the condensing tracking device that increases is well below the solar cell cost of being saved, be equivalent to replace expensive semi-conducting material with common material, reduce the cost of photovoltaic generating system significantly, thereby further improve the ratio of performance to price of photovoltaic power generation apparatus.Photovoltaic and photothermal integral assembly for another example, this assembly can be used in the solar electrothermal co-generation system, has both directly produced electric energy, again can be in cools solar cell, improve under the solar cell conversion and collect unnecessary heat energy in green, obtain electric energy, the dual income of heat energy, the overall efficiency height.
Conventional solar module production technology in the photovoltaic industry is: with ultra-clear glasses cover plate, EVA, the solar cell string that connects, EVA (solar module adhesives, vinyl-vinyl acetate copolymer), TPT (polyvinyl fluoride composite membrane) backboard puts well in order, places the moulding of laminating machine heating, vacuum.The thickness of these solar modules generally is no more than 20mm, and therefore the cavity volume of conventional laminating machine satisfies production requirement also by this design.And solar cell and radiator integral component (light-concentrating solar cell components, photovoltaic and photothermal integral assembly etc.) are and existing other particular components of bulk article phase region to exist following technical barrier to capture:
1. the thermal coefficient of expansion of radiator and solar cell differs greatly, and easily causes fragmentation of battery sheet or assembly failure by rupture after being heated;
2. conventional EVA material thermal conductivity can be poor, can not satisfy the high-termal conductivity requirement of optically focused, electric heating coproduction;
3. the bubble that existing assembly forming method produces is many, rate of finished products is low.
At above technical barrier, be necessary to propose a kind of solar cell and radiator integral component, carry out correlative study, promote the solar energy industry development.
Summary of the invention
Technical problem: the objective of the invention is to propose a kind of solar cell and radiator integral component, this assembly is perfect heat-dissipating not only, and be easy to machine-shaping, and be convenient to large-scale production, help to improve the cost performance of application systems such as concentrating photovoltaic power generation, photovoltaic and photothermal coproduction.
Technical scheme: a kind of solar cell and radiator integral component, this assembly comprises transparent cover plate, solar battery sheet, the transparent bonding glue-line, frame, described transparent cover plate, solar battery sheet connects by the transparent bonding glue-line, be fixed border all around, also comprise radiator, the heat conductive insulating adhesives, the grid of fixed solar battery sheet, described spreader surface has insulating barrier, be positioned at the bottom ground floor, second layer is the heat conductive insulating adhesives on it, the 3rd layer is solar battery sheet and stationary grizzly thereof, the 4th layer is the transparent bonding glue-line, layer 5 is a transparent cover plate, there is the radiator of insulating barrier on described surface, the heat conductive insulating adhesives, solar battery sheet and stationary grizzly thereof, the transparent bonding glue-line, transparent cover plate closely connects after the moulding next time of heating in vacuum state in laminating machine, forms solar cell and radiator integral component with frame and the fixing back of the material that is sealing adhesive all around.Thermal component will absorb the heat of solar cell generation and be diffused in the low temperature environment by convection current radiation and conduction.
Beneficial effect: the present invention is easy to machine-shaping with ingenious reasonable structural design, has improved the heat transfer property of solar cell, makes application systems such as concentrating photovoltaic power generation, photovoltaic and photothermal coproduction more reliable, is conducive to a large-scale promotion and application.
Description of drawings
The present invention will be further described below in conjunction with accompanying drawing and exemplary embodiments.
Fig. 1 is the structural representation of the embodiment of the invention one.
Fig. 2 is the heat spreader structures schematic diagram of the embodiment of the invention one.
Fig. 3 is the radiator metallic channel structural representation of the embodiment of the invention one.
Fig. 4 is the process flow diagram of the embodiment of the invention one.
Fig. 5 is the structural representation of the embodiment of the invention two.
Have among the above figure: there is radiator 1, heat conductive insulating adhesives 2, the grid 3 of fixed solar battery sheet, fixed solar battery sheet 4, transparent bonding glue-line 5, transparent cover plate 6, radiator fluid duct 7, the metallic channel 8 of insulating barrier on the surface.
Embodiment
Embodiment one
As shown in Figure 1, a kind of solar cell and radiator integral component, this assembly comprises transparent cover plate 6, solar battery sheet 4, transparent bonding glue-line 5, frame, described transparent cover plate 6, solar battery sheet 4 connect by transparent bonding glue-line 5, be fixed border all around, also comprise the grid 3 of radiator 1, heat conductive insulating adhesives 2, fixed solar battery sheet 4.
Present embodiment is selected aluminium alloy heat radiator for use, this radiator generally is pultrusion or die stamping moulding, also can be on aluminium sheet soldering or plug-in mounting fin form, the flat surface of its non-fin forms the alundum (Al insulating barrier through oxidation, insulation property should detect, and then answer secondary oxidation as not reaching insulating requirements.Can certainly obtain insulating barrier by technological means such as teflon coated or thermal conductive insulation glues.Radiator 1 is positioned at the bottom ground floor, and for the ease of the welding solar battery sheet, radiator 1 has metallic channel 8 towards the one side of solar cell, and as shown in Figure 2, wherein the metallic channel enlarged drawing is seen Fig. 3.
The second layer is a heat conductive insulating adhesives 2, and the conductive coefficient of this heat-conducting insulation material must be high, and possess better elastic, can cushion aluminium alloy heat radiator and the stress of generation different with the battery sheet coefficient of expansion.
The 3rd layer is solar battery sheet 4 and stationary grizzly 3 thereof, and composition material is Al-alloy metal material or fiberglass reinforced plastics, TPT (used for solar batteries composite polymeric materials) etc.The grid of the grid 3 of fixed solar battery sheet 4 matches with solar battery sheet 4 sizes, and promptly each solar battery sheet 4 is all put into and made it at the unshift grid 3 of lamination process, and described grid 3 leaves solar cell sealing wire fairlead.In concentration photovoltaic system, can make the surperficial sunlight reflected layer of grid 3 as required, can reflect away unnecessary sunlight like this, thereby reduce the temperature of solar module, alleviate the heat exchange pressure of radiator towards transparent cover plate 6.Certainly, can not make change as required fully yet, keep its original state.In the photovoltaic and photothermal integral system, also can even add and be coated with absorbing material, the enhancing heat absorption capacity its surperficial painted black.
The 4th layer is transparent bonding glue-line 5, and this glue line can be the material modified of conventional EVA material, also can directly adopt the good silicon rubber of the transparency to make alternative adhesives.
Layer 5 is a transparent cover plate 6.Generally speaking, cover plate is the ultra-clear glasses cover plate, can select suitable transparent cover plate for use certainly in different systems, such as silicon rubber, transparent resin, high saturating plastics etc.
Processing technology as shown in Figure 4, described surface has radiator 1, heat conductive insulating adhesives 2, fixed solar battery sheet 4 and stationary grizzly 3 thereof, transparent bonding glue-line 5, the transparent cover plate 6 of insulating barrier closely to connect after the moulding next time of heating in vacuum state in laminating machine, forms solar cell and radiator 1 integral component with frame and the fixing back of the material that is sealing adhesive all around.Wherein radiator can be put into the baking oven preheating as required, on radiator, place heat-conducting insulation material, grid, solar battery sheet, transparent adhesives, transparent cover plate and auxiliary material then successively, vacuumize the lamination of heating then, can not be during cooling as the careless taking-up of conventional assembly, but to lower the temperature in order by the design temperature lowering curve, in order to form less bubble, take out and also answer behind the integral component 7 to put into baking oven and slowly lower the temperature, carry out the check of physical property and electrical property at last.
When solar cell and the work of radiator integral component, radiator makes assembly remain on a lower working temperature, thereby has improved the power output of assembly, keep its stable performance, effectively increase the service life, reduce cost, improve its cost performance, be convenient to application.
Embodiment two
The solar cell of present embodiment and radiator integral component are as shown in Figure 5, the main distinction of itself and embodiment one is: described radiator 1 is for having the radiator in fluid duct 7, cannot ventilating air in it, water, heat conduction wet goods fluid is as working media.This radiator has cooling fluid import and outlet, when solar irradiation is mapped on the solar cell, because flowing of working media, too much heat can be taken away by heat eliminating medium rapidly, play the effect of cools solar cell, guarantee that it is operated in the suitable temperature range, also can gather heat energy simultaneously and be fully utilized, form the photovoltaic and photothermal integral system.
In addition to the implementation, the present invention can also have other execution modes.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop in the protection range of requirement of the present invention.