Background technology
Along with the enhancing of the day by day exhausted and human environmental consciousness of global fossil energy, be that the generating cause of core has had development at full speed in recent years with the photovoltaic, the cost height of photovoltaic cell component, photoelectric conversion efficiency is low is the key that the restriction photovoltaic industry develops.The high power condense photovoltaic electrification technology is arisen at the historic moment, this technology is reducing the power station cost significantly and is realizing having very big advantage aspect the large-scale production rapidly, when having remedied general cell panel to charge in batteries, must just can send enough electric weight relative short deficiency with the charging interval of charging under strong illumination, high concentration solar generating has significantly reduced the photovoltaic generation cost.Yet, also there is certain problem in the high power condense photovoltaic electrification system, incide highdensity solar energy on the battery component except that a part is converted to electric energy, all the other are unconverted for the solar energy converting of electric energy be that heat energy is absorbed by battery component, solar module heat absorption back temperature raises, the photoelectric conversion efficiency of solar cell sharply descends along with the rising of battery self-temperature, and temperature too high useful life that also will influence battery.
Can't leave the timely and effectively heat of battery component of natural heat dissipation itself, therefore be effectively to ensure the battery operated temperature of high concentration solar, improve generating efficiency, increase the service life, need the concentrating solar battery plate is dispelled the heat effectively, and still lack effective heat dissipation at present.
The utility model content
The purpose of this utility model is exactly in order to solve the heat dissipation problem of existing high concentration solar battery component, a kind of cooling system of novel high concentration solar battery component is provided, it can be rapidly and efficiently the temperature of reduction high concentration solar battery component, the photoelectric conversion efficiency that is equipped with the high concentration solar battery of heat abstractor can be increased to 35% by present 13%, and need not to consume any mechanical energy.
For achieving the above object, the utility model adopts following technical scheme:
It comprises a high power concentrator device, solar module and with the oscillating flow heat pipe radiator of solar module overall package; The close side of oscillating flow heat pipe radiator and solar module is an evaporation section, and the opposite side of oscillating flow heat pipe radiator is a condensation segment, relies on the outdoor airflow natural cooling; Be provided with temperature sensor between solar module and oscillating flow heat pipe radiator, temperature sensor transmits signals to mechanical control device, when the battery component temperature was too high, the sunlight load was accepted in the mechanical control device adjustment, effectively ensured the operate as normal of battery component.
The evaporation section etched inside of described oscillating flow heat pipe radiator forms a plurality of U type microflutes, and U type microflute substitutes the capillary of evaporation section in traditional oscillating flow heat pipe radiator, good heat-transfer.
The condensation segment of described oscillating flow heat pipe is not established housing, and heat pipe is exposed to outside atmosphere environment, perfect heat-dissipating.
The evaporation section of described oscillating flow heat pipe radiator is made by high heat-conducting type material, and condensation segment is provided with a plurality of capillaries, and the U type microflute notch welding back of each mouth of pipe capillaceous and evaporation section is UNICOM mutually, and the liquid filled ratio of liquid working substance is 30% ~ 60% in the capillary.
Be provided with heat conductive silica gel between described solar module and oscillating flow heat pipe radiator, can reduce thermal conduction resistance to greatest extent.
Solar power system is by the concentrator of a high power concentrator in the utility model, a solar module, high concentration solar cell power generation efficient can reach 35%, unconverted in addition is the sunlight incident energy of electric energy, absorbed by solar module, for ensureing the normal working temperature of battery component, with oscillating flow heat pipe radiator and battery component overall package, the heat that cell panel absorbs is taken away by the oscillating flow heat pipe radiator.
The close side of oscillating flow heat pipe radiator and cell panel is an evaporation section, fills heat conductive silica gel between evaporation section and the battery component, and heat conductive silica gel inside is provided with the temperature of temperature sensor measured battery assembly, the evaporation section of oscillating flow heat pipe and battery component overall package.Evaporation section is high heat-conducting type material, and etched inside forms a plurality of U type microflutes; Condensation segment is not established housing, and the heat pipe mouth of pipe of condensation segment docks with U type microflute mouth, forms the loop of mutual UNICOM.The heat pipe of condensation segment directly and atmospheric environment carry out heat exchange, cooling system does not contain movable part, need not to consume any mechanical energy.
The heat of concentration solar cell assembly passes to the evaporation section of oscillating flow heat pipe radiator with heat exchange pattern, the evaporation section temperature raises, cause the fluid in the evaporation section U type groove to heat up, when fluid is warming up to the start-up temperature of oscillating flow heat pipe, the oscillating flow heat pipe radiator is started working, with the heat transferred of the battery component condensation segment to the oscillating flow heat pipe radiator, condensation segment is exposed in the atmospheric environment, natural heat dissipation under the outdoor airflow effect.
Advantage of the present utility model is, the oscillating flow heat pipe heat transfer technology combines with the high concentration solar battery generating system efficiently, utilize the oscillating flow heat pipe radiator that battery component is dispelled the heat, can effectively reduce the temperature of solar cell, make solar cell for a long time with higher photoelectric conversion efficiency work, can prolong the useful life of solar cell simultaneously; And this cooling system does not have any movable part, and long service life need not external mechanical force and drives, and does not consume any mechanical energy.
The utility model selects for use the oscillating flow heat pipe radiator to take away the heat of photovoltaic cell own as heat transport element.Oscillating flow heat pipe is a kind of emerging high efficient heat exchanging unit, it has that heat transfer property is good, simple in structure, can be arbitrarily crooked, mode of heating flexibly, be easy to realize advantage such as microminiaturization, heat abstractor and solar cell based on the development of oscillating flow heat pipe technology are assembled together, and realize the efficiently radiates heat of battery component.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is described further.
Among Fig. 1, it comprises the oscillating flow heat pipe radiator 3 with solar module 2 overall package, oscillating flow heat pipe radiator 3 and solar module 2 close sides are evaporation section 5, etched inside has U type microflute 9, arranges at least one temperature sensor 7 between evaporation section 5 and the solar module 2; The opposite side of oscillating flow heat pipe radiator 3 is a condensation segment 6, and condensation segment 6 is made of a plurality of capillaries 10, does not establish housing, and capillary 10 docks with U type microflute 9, constitutes the loop of mutual UNICOM; Temperature sensor 7 is measured the temperature of solar module 2 in real time, and transmit signals to mechanical control device 11, if temperature value of overstepping the extreme limit, mechanical control device 11 work adjustment reduce to receive the energy (temperature sensor signal has precedence over the signal of solar tracking device, and the guarantee battery component is worked) of solar energy in normal range (NR); 3 in solar module 2 and oscillating flow heat pipe radiator are provided with heat conductive silica gel 6.Solar module 2 is positioned at the focus place of concentrator 1.
Among Fig. 2, evaporation section 1 is with the good material of heat conductivility, and etched inside becomes U type microflute 9, and condensation segment 2 is folded by capillary 10 and forms, and does not establish housing, and the capillary 10 of condensation segment 2 places atmospheric environment, natural heat dissipation.The capillary 10 of condensation segment 2 docks with the U type microflute 9 of evaporation section 1, forms the loop of mutual UNICOM.The liquid filled ratio of capillary 10 inner fluid media is 30% ~ 60%.