CN102810592A - Novel low-power-concentrating photovoltaic power generating module - Google Patents
Novel low-power-concentrating photovoltaic power generating module Download PDFInfo
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Abstract
The invention discloses a novel low-power-concentrating photovoltaic power generating module, which comprises an inner optical cavity and a photovoltaic cell piece, wherein the inner optical cavity is formed by circularly arranging a concentrating cover plate, a lower bottom plate and side plates; the concentrating cover plate comprises glass; and the photovoltaic cell piece is arranged on the lower bottom plate. The power generating module is characterized by further comprising a permeability-increasing and heat-insulating film system, a Fresnel lens, a flexible heat-conducting silica gel insulating gasket and aluminum alloy fins, wherein the permeability-increasing and heat-insulating film system is plated on the upper surface of a glass cover plate; the Fresnel lens is arranged on the lower surface of the glass plate; the lower surface of the concentrating photovoltaic cell piece is padded with the flexible heat-conducting silica gel insulating gasket; and the aluminum alloy fins are fixedly connected with the outside of the lower bottom plate under the concentrating photovoltaic cell piece. According to the invention, the solar light energy receiving rate of a concentrated photovoltaic cell is improved by utilizing the permeability increasing function of the permeability-increasing and heat-insulating film system and the high photopermeability of the Fresnel lens, and the light-electric conversion efficiency of the module is improved by combining the highly efficient concentrating photovoltaic cell piece and a low-cost heat dissipation system, so that the cost of power generation is reduced. The power generating module provided by the invention has a low cost and is suitable for power generation in an area which is rich in solar energy.
Description
Technical field
The present invention relates to the solar photovoltaic technology field, especially a kind of novel low-concentration photovoltaic electricity generation module.
Background technology
Solar energy power generating receives the great attention of countries in the world as a kind of regenerative resource and clean energy resource.In recent years, many in the world countries began to build large and medium-sized photo-voltaic power generation station.From now on a period, will there be more this type photo-voltaic power generation station to put into operation successively.Therefore, the domestic and international market also can be increasing to the demand of photovoltaic electrification component.
At present, be used to build the photovoltaic electrification component of large and medium-sized photo-voltaic power generation station on the market, mainly contain flat crystal silicon chip photovoltaic cell component, from two types of motion tracking low-concentration photovoltaic electrification components etc.
Traditional flat crystal silicon chip photovoltaic cell component is gone through the development of two more than ten years, its production cost from one's early years per thousand peaks watts 2～40,000 yuans reduce to present per thousand peaks watt 0.5～0.55 ten thousand yuan.Even like this, its unit quantity of electricity cost of electricity-generating still is higher than thermoelectricity, water power at present far away.Under present market price system, the decline space of flat crystal silicon chip photovoltaic cell component production cost is very limited.Therefore, continue to research and develop, be difficult to obtain significant effect along the thinking of ", reducing its cost of electricity-generating " through reducing the production cost of flat crystal silicon chip photovoltaic cell component.
Be called low-concentration when usually, light concentrating times is no more than 100 times.
On the market from motion tracking low-concentration photovoltaic electrification component, generally form by two parts such as low-concentration photovoltaic electricity generation module and automatic sun tracking devices.This class component is a tester with flat crystal silicon chip photovoltaic cell component generally, mainly reduces the unit quantity of electricity cost of electricity-generating through performance " optically focused advantage " and " tracking advantage ".
" tracking advantage " mainly shows the solar energy acceptance rate that improves module, thereby increases the annual energy output of unit installed capacity.Though the configuration of automatic sun tracking device and operation all can improve cost of electricity-generating; But the cost of electricity-generating that reduces because of the increase of unit installed capacity annual energy output; Generally all greater than the former, so " tracking advantage " really can reduce the unit quantity of electricity cost of electricity-generating to a certain extent.
" optically focused advantage " traditional meaning is: " in module was produced, the higher crystal silicon photovoltaic cell sheet of most of price was by other lower material substitution of price, thereby reduced the production cost of module ".As if in this sense, light concentrating times is higher, " optically focused advantage " will be by force.Problem is: the raising of module light concentrating times receives the restriction of condensation photovoltaic battery sheet heat radiation cost.The last minute low-concentration photovoltaic electricity generation module in market adopted tens of times light concentrating times.On the surface, its light concentrating times is very high, and " optically focused advantage " should be very strong.Problem is, because of its light concentrating times is high, so be necessary for the expensive forced heat radiation system of condensation photovoltaic battery sheet configuration.The forced heat radiation system has caused significantly improving of photo-voltaic power generation station construction investment and operating cost just, has finally offsetted most of " optically focused advantage " conversely.Another part low-concentration photovoltaic electricity generation module on the market in order to avoid disposing expensive forced heat radiation system, is no more than 4 times and light concentrating times is limited in.This part low-concentration photovoltaic electricity generation module, because light concentrating times is on the low side, so the performance of " optically focused advantage " has received limitation, effect is also not ideal enough.Therefore, the occupation rate of market from motion tracking low-concentration photovoltaic electrification component is not high always.
At present, the price of crystal silicon photovoltaic cell sheet descends significantly, even has been lower than the price of above-mentioned " other material ".So, no matter be tens of times of optically focused or 4 times of optically focused, traditional " optically focused advantage " in fact do not exist basically.
Reflect this, break through limitation of the technology, bring into play " optically focused advantage " and " tracking advantage " from motion tracking low-concentration photovoltaic electrification component better, further reduce the unit quantity of electricity cost of electricity-generating, a vital task that has just become the technical research personnel to face.
Summary of the invention
The purpose of this invention is to provide a kind of hoisting module photoelectric conversion efficiency and solar energy acceptance rate of passing through, reduce the novel low-concentration photovoltaic electricity generation module of photovoltaic generation cost.During actual the use, this module must be supporting with oblique single shaft autotracker, forms a kind of new type auto tracking low-concentration photovoltaic electrification component.
For achieving the above object; The inventor is at first according to the actual conditions of present stage turn of the market and technological progress; The new meaning of " optically focused advantage " has been proposed: " use the optically focused technology; can promote the photoelectric conversion efficiency of low-concentration photovoltaic electricity generation module significantly, and and then significantly reduce the unit quantity of electricity cost of electricity-generating ".This be because: the first, under the constant situation of installed capacity, the lifting of module photoelectric conversion efficiency means the minimizing of module flat area.And reduce the module flat area, and will inevitably correspondingly reduce the construction investment of photo-voltaic power generation station, also can correspondingly reduce the maintenance cost that the photo-voltaic power generation station run duration takes place, finally reduce the unit quantity of electricity cost of electricity-generating of photo-voltaic power generation station.The second, promote the effective measures of low-concentration photovoltaic electricity generation module photoelectric conversion efficiency, be the photoelectric conversion efficiency that promotes used condensation photovoltaic battery sheet.Problem is that the lifting significantly of condensation photovoltaic battery sheet photoelectric conversion efficiency must bring the lifting by a larger margin of its production cost.Exactly because this reason; The production of flat crystal silicon chip photovoltaic cell component; So far also would rather use photoelectric conversion efficiency is 15～18% crystal silicon photovoltaic cell sheet, and is reluctant to use photoelectric conversion efficiency up to 24% high efficiency crystal silicon photovoltaic cell sheet.But in the low-concentration photovoltaic electricity generation module is produced; The consumption of crystal silicon photovoltaic cell sheet is the (ratio of the battery sheet usable floor area and the effective area of plane of module seldom; Approximate the inverse of light concentrating times); As adopting the higher high efficiency crystalline silicon condensation photovoltaic battery sheet of price, " the module production cost recruitment " that then produces therefrom is also little.This just means: as long as light concentrating times is enough high, the module that adopts high efficiency crystalline silicon condensation photovoltaic battery sheet to produce just can significantly reduce the unit quantity of electricity cost of electricity-generating because of the lifting significantly of its photoelectric conversion efficiency.
For achieving the above object; The inventor utilizes high efficiency monocrystalline silicon condensation photovoltaic battery sheet according to the new meaning of " optically focused advantage ", manufactures and designs novel low-concentration photovoltaic electricity generation module; So that pass through the photoelectric conversion efficiency of hoisting module significantly, come significantly to reduce the unit quantity of electricity cost of electricity-generating.
In order to break through of the restriction of low-concentration photovoltaic electricity generation module heat radiation cost to light concentrating times; The inventor uses the enhancing reflection function that anti-reflection-thermal isolation film is the centering far red light again; Natural convection air heat sinking function with aluminum alloy fin; Designed the optional cooling system of the composite type that is attached to the cheapness in the module, thereby the light concentrating times of novel low-concentration photovoltaic electricity generation module has been brought up to 6～10 times from 4 times.
In order to control the production cost of low-concentration photovoltaic electricity generation module, the inventor has adopted the design of " the flat boxization of module profile, parts multifunction " in modular design, has controlled the production cost of novel low-concentration photovoltaic electricity generation module effectively.
Novel low-concentration photovoltaic electricity generation module in actual use, must with oblique uniaxiality tracking device cooperating.For this reason, the inventor has taked necessary coordination measure in modular design, can the work of matching coordinative ground to guarantee both.
Current, can be many on the market with the automatic sun tracking device of low-concentration photovoltaic electricity generation module cooperating, conclude to get up can be divided three classes: flat single shaft autotracker, oblique single shaft autotracker, double-shaft auto-tracking device.The solar tracking effect of all kinds of autotrackers, production cost are different, and therefore separately the scope of application is also inequality.Suitable and the novel low-concentration photovoltaic electricity generation module of the present invention cooperating, be oblique single shaft autotracker.
Concrete technical scheme is:
A kind of novel low-concentration photovoltaic electricity generation module, it comprises optically focused cover plate, lower shoe and the end plate that contains glass plate, and their interior optical cavities of surrounding, also comprises the photovoltaic cell that is located at above the lower shoe, it is characterized in that also comprising:
Be coated on the anti-reflection-thermal isolation film system of glass plate upper surface;
Apply ointment or plaster at the Fresnel Lenses of glass plate lower surface;
The soft heat conductive silica gel insulation spacer of liner below said photovoltaic cell;
The aluminum alloy fin that lower shoe fixed outside below said photovoltaic cell is connected.
Described lower shoe is processed by aluminium alloy, and the lower shoe cross section is several dovetail grooves arranged side by side.
Described end plate is that aluminium alloy is processed.
Described photovoltaic cell adopts condensation photovoltaic battery sheet to be in series, and is arranged in the location notch of dovetail groove bottom surface of lower shoe.
Described condensation photovoltaic battery sheet is monocrystalline silicon condensation photovoltaic battery sheet, and light concentrating times is 6-10 times, photoelectric conversion efficiency >=24%.
Described soft heat conductive silica gel insulation spacer, thickness is preferably 0.5～1.5mm, and conductive coefficient is suitable >=2.0W/m.k, temperature resistant range should not be narrower than-40～100 ℃, puncture voltage >=1Kv/mm.
Described glass plate is a tempering ultra-clear glasses plate, thickness 3.2～4 mm, light transmittance >=91%.
Described anti-reflection-thermal isolation film system; It at first is anti-reflection film system; It simultaneously is again thermal isolation film system; Require the performance index of anti-reflection-thermal isolation film system to be: (1) anti-reflection function: total light transmittance >=95%, effectively wave band is the wave band that ability coverlet crystal silicon photovoltaic battery sheet converts electric energy into, its wavelength is in 400～1100 nm scopes; (2) heat insulating function: the infrared light to wavelength >=1100 nm guarantees its total reflectivity >=40%.
Described Fresnel Lenses is a glass-based silica gel linear pattern Fresnel Lenses, and its burnt wide ratio is 0.8～2.0, when thickness of glass substrate is 3mm, and its total light transmittance >=89%.
A low-concentration photovoltaic electricity generation module can only be provided with 1 Fresnel Lenses, also some Fresnel Lenses can be set parallelly connectedly.Supporting on the primary optical axis of every Fresnel Lenses a photovoltaic cell is set.Photovoltaic cell is between Fresnel Lenses minute surface and focus, and the distance between itself and the minute surface can be calculated according to the light concentrating times of setting and confirm.The width of every Fresnel Lenses can calculate definite according to the width of the photovoltaic cell sheet that adopts and the light concentrating times of setting.
The novel low-concentration photovoltaic electricity generation module of said structure; Brought into play self " optically focused advantage " preferably; Simultaneously again can with oblique single shaft autotracker cooperating; The new type auto tracking low-concentration photovoltaic electrification component of common composition, therefore performance " tracking advantage " preferably can further reduce the solar energy power generating cost.
Description of drawings
Fig. 1 is a main TV structure sketch map of the present invention.
Fig. 2 is the vertical view of Fig. 1.
Fig. 3 is the structure for amplifying sketch map of analysing and observe along the A-A line among Fig. 1.
In the drawings, end plate 1, optically focused cover plate 2, anti-reflection-thermal isolation film is 3, optical cavities 4; Photoelectric conversion unit 5, Fresnel Lenses 6, lower shoe 7, glass plate 8, location notch 9; Photovoltaic cell 10, soft heat conductive silica gel insulation spacer 11, aluminum alloy fin 12, bearing 13, side plate 14.
Embodiment
Below, in conjunction with accompanying drawing the present invention is described further.
Shown in Figure 1, be main TV structure sketch map of the present invention.From figure, can know, the present invention includes side plate 14, optically focused cover plate 2 and the photoelectric conversion unit 5 of aluminium alloy end plate 1 and the bearing 13 thereof at two ends, the lower shoe 7 that aluminium alloy is processed, the aluminum alloy fin 12 that is used to dispel the heat, two sides.Wherein, the side plate 14 of the aluminium alloy end plate 1 at lower shoe 7, two ends, optically focused cover plate 2, two sides and photoelectric conversion unit 5 surround and constitute optical cavities 4; Bearing 13 below the two ends aluminium alloy end plate 1 is supporting optical cavities 4; The structure of the side plate 14 of two sides is seen Fig. 3, and Fig. 3 is the structure for amplifying sketch map of analysing and observe along the A-A line among Fig. 1.Can know that from vertical view Fig. 2 of Fig. 1 optically focused cover plate 2 is a cuboid with the top of optical cavities 4.To can knowing the broken section of optically focused cover plate 2, anti-reflection-thermal isolation film that optically focused cover plate 2 comprises glass plate 8, be coated on glass plate 8 upper surfaces is 3 and applies ointment or plaster at the Fresnel Lenses 6 of glass plate 8 lower surfaces from Fig. 1.Photoelectric conversion unit 5 comprises photovoltaic cell 10 and soft heat conductive silica gel insulation spacer 11.From Fig. 1 and Fig. 3, can see; The soft heat conductive silica gel insulation spacer 11 of photovoltaic cell 10 and following pad; Be arranged on together in the location notch 9 of lower shoe 7 dovetail groove bottom surfaces; Utilize the hot melt characteristic of soft heat conductive silica gel insulation spacer 11, it is fitted with photovoltaic cell 10 and aluminium alloy lower shoe 7 respectively up and down closely.Lower shoe 7 adopts the structure of cross section by several dovetail groove parallel connections, and is processed by aluminum alloy materials.The outside, bottom surface at lower shoe 7 vertically is fixedly connected the aluminum alloy fin 12 that is useful on heat radiation.The heat that receives on the photovoltaic cell sheet 10 is transmitted in the aluminium alloy drain pan through soft heat conductive silica gel insulation spacer 11, spills in the air with the natural convection air mode through aluminum alloy fin 12 then.Can see by figure, in the location notch 9 of the lower shoe 7 dovetail groove bottom surfaces in optical cavities 4, be provided with some condensation photovoltaic batteries, and each bar condensation photovoltaic battery is in series by some photovoltaic cell sheets 10 respectively.The two sides side plate 14 of 7 liang of avris of lower shoe is outer extends obliquely, connects with the dual-side of the optically focused cover plate 2 of top, constitutes two closed sides of optical cavities 4, and making the cross section of cavity 4 is up big and down small trapezoidal faces.
Described Fresnel Lenses is a glass-based silica gel linear pattern Fresnel Lenses, and its burnt wide ratio is 0.8～2.0, when thickness of glass substrate is 3mm, and its total light transmittance >=89%.About the supply of material of linear pattern Fresnel Lenses, the available customizations of two series products such as glass-based silica gel Fresnel Lenses and polymethyl methacrylate Fresnel Lenses are arranged on the market.This two series products, light transmittance and production cost equate substantially, but the longer service life of glass-based silica gel Fresnel Lenses can be complementary with the useful life of concentrating photovoltaic power generation module.
Can see that by Fig. 1 and Fig. 3 a low-concentration photovoltaic electricity generation module can only be provided with 1 Fresnel Lenses, also some Fresnel Lenses can be set parallelly connectedly.Supporting on the primary optical axis of every Fresnel Lenses a photovoltaic cell is set.Photovoltaic cell is between Fresnel Lenses minute surface and focus, and the distance between itself and the minute surface can be calculated according to the light concentrating times of setting and confirm.The width of every Fresnel Lenses can calculate definite according to the width of the photovoltaic cell sheet that adopts and the light concentrating times of setting.
In the lower shoe 7 of optical cavities 4 bottoms, in the location notch 9 of every dovetail groove bottom surface, respectively be provided with a photovoltaic cell 10, and every photovoltaic cell 10 is in series by some condensation photovoltaic battery sheets respectively.
Described condensation photovoltaic battery sheet, the back of the body contact monocrystalline silicon condensation photovoltaic battery sheet that adopts U.S. Sunpower company to produce, light concentrating times is 6-10 times, photoelectric conversion efficiency >=24%.Also can adopt the similar products of other enterprise production.In order to realize " the flat boxization " of module, the width of condensation photovoltaic battery sheet should be cut into 20～30 mm.For example, with the monoblock back of the body contact monocrystalline silicon condensation photovoltaic battery sheet of 125mm * 125mm, be cut into the condensation photovoltaic battery sheet of 6 20.8mm * 125mm.
Described soft heat conductive silica gel insulation spacer, thickness is preferably 0.5～1.5mm, and conductive coefficient is suitable >=2.0W/m.k, temperature resistant range should be wider than-40～100 ℃, puncture voltage >=1Kv/mm.There is multiple product can supply to choose on the market.
Described glass plate adopts tempering ultra-clear glasses plate, thickness 3.2～4 mm, light transmittance >=91%.
Described anti-reflection-thermal isolation film system, at first be anti-reflection film system, be again simultaneously thermal isolation film system.Require the performance index of anti-reflection-thermal isolation film system following:
(1) anti-reflection function: to the sunlight of effective wave band, 6 percentage points of the light transmittances of raising optically focused cover plate guarantee its total light transmittance >=95%.Effectively wave band is the wave band that ability coverlet crystal silicon photovoltaic battery sheet converts electric energy into, and its wavelength is in 400～1100 nm scopes;
(2) heat insulating function: the infrared light to wavelength >=1100 nm guarantees its total reflectivity >=40%.This part infrared light such as coverlet crystal silicon photovoltaic battery sheet absorb, and then can not be converted into electric energy, and only can convert heat energy into, cause monocrystalline silicon photovoltaic cell sheet temperature to raise, and operating efficiency descends, even suffer the high temperature damage.
Described anti-reflection-thermal isolation film system is based on the interference of light principle, form by being coated on the glass plate 1 layer or several layers refractive index different compounds film.Thicknesses of layers equals 1/4th centre wavelengths.Centre wavelength is set in the significant wave segment limit.
Anti-reflection-the thermal isolation film that can reach above-mentioned performance index is that design is more, and any can realize the design of above-mentioned performance index, if draw materials convenient and cost reasonable, all can adopt.It should be noted that: the refractive index of some retes, not only relevant with the coating materials kind, and also relevant with process for plating (method, flow process, filming equipment, technological parameter etc.).Therefore, must select process for plating simultaneously when selecting coating materials, and measure corresponding refractive index.Anti-reflection-thermal isolation film is a design, specifically can in following scope, select:
(1) coating materials: titanium dioxide, silicon dioxide, zirconium dioxide, alundum (Al, magnesium fluoride or the like;
(2) number of plies and ordering: one deck or several layers, each rete are alternately arranged according to the regularity that " glass plate+height+low+height+low " is such according to the difference of its refractive index height.Total number of plies is confirmed according to the principle of " performance index reach requirement ".The resistance to wear of outermost tunic, corrosion resistance should be higher than glass.
Anti-reflection-thermal isolation film system like this for the sunlight near the effective wave band centre wavelength, has anti-reflection (antireflective) effect, for the infrared light away from centre wavelength, the enhancing reflex is arranged, i.e. heat-blocking action.
The air heat radiation promptly utilizes aluminum radiating fin 12, with the natural convection air mode, the heat on the condensation photovoltaic battery 10 is distributed.
Theoretical Calculation and experimental test result show; Anti-reflection-thermal isolation film that the present invention utilizes is the enhancing reflection function of 3 centering far red lights; With the natural convection air heat sinking function of aluminum alloy fin 12, the optional cooling system of the composite type that combines, can let the light concentrating times of novel low-concentration photovoltaic electricity generation module break through 4 times of restrictions; Reach 6～10 times, thereby brought into play more optically focused advantage.The heat radiation elements that the optional cooling system of composite type adopts, production cost and operating cost are all very low, also all have multifunctionality simultaneously; For example; Thermal isolation film system also is an anti-reflection film system simultaneously, has both played heat-blocking action, plays a part to improve assembly condensation photovoltaic battery sheet solar energy acceptance rate again.And for example, aluminium alloy radiating fin 12 also is a part of novel low-concentration photovoltaic electricity generation module load-carrying construction simultaneously, has both played thermolysis, plays the load effect again.Therefore, the production cost of the optional cooling system of composite type and operating cost are all very cheap, and is very slight to the offset effect of assembly " optically focused advantage ".
Compare with hard-wired photovoltaic electrification component; Shine the sunlight of novel low-concentration photovoltaic electricity generation module optically focused lid surface; Because the pursuit movement that supporting oblique single shaft autotracker drives; And eliminated most of cosine effect loss, thereby, create and got well external condition for promoting the solar energy acceptance rate of novel low-concentration photovoltaic electricity generation module condensation photovoltaic battery sheet." the tracking advantage " of bringing for novel low-concentration photovoltaic electricity generation module from motion tracking that Here it is.
Sunlight sees through the optically focused cover plate and the optical cavities of novel low-concentration photovoltaic electricity generation module, roughly shines the surface of condensation photovoltaic battery sheet equably.In this process; Because anti-reflection-thermal isolation film system is to the antireflective effect (being anti-reflection effect) of effective wave band sunlight; Again because the high transmission rate characteristic of glass-based silica gel linear pattern Fresnel Lenses, and reduced the loss that effective wave band sunlight causes because of effects such as reflection, absorptions significantly.Here it is, and novel low-concentration photovoltaic electricity generation module further promotes the process of condensation photovoltaic battery sheet solar energy acceptance rate with the premium properties of self.
Because anti-reflection-thermal isolation film is the enhancing reflex of 3 pairs of infrared lights; Shine the sunlight on novel low-concentration photovoltaic electricity generation module optically focused cover plate 2 surfaces; Wherein near half infrared light is reflected in the air, fails to see through the surface that the optically focused cover plate arrives condensation photovoltaic battery sheet.Here it is, and anti-reflection-thermal isolation film system brings into play the process of heat insulating function.
The sunlight that receives on the condensation photovoltaic battery sheet; A part converts electric energy into; Via drawing lead output; Another part is converted into heat energy, is transmitted in the aluminium alloy lower shoe 7 through soft heat conductive silica gel insulation spacer 11, spills in the air with the natural convection air mode through aluminum alloy fin 12 then.
Owing to brought into play " tracking advantage " and " optically focused advantage " simultaneously, again owing to having controlled the module production cost preferably, so the novel low-concentration photovoltaic electricity generation module of the present invention can be realized lower unit quantity of electricity cost of electricity-generating.According to measuring and calculating, under the same condition of building a station, the photo-voltaic power generation station that utilizes the new type auto tracking low-concentration photovoltaic of the present invention electricity generation module to build, the unit quantity of electricity cost of electricity-generating is than hard-wired flat crystal silicon chip photovoltaic cell component low 20～25%.
Claims (9)
1. novel low-concentration photovoltaic electricity generation module, it comprises the interior optical cavities that the optically focused cover plate, lower shoe and the side plate that contain glass plate surrounds, and is located at the photovoltaic cell above the lower shoe, it is characterized in that also comprising:
Be coated on the anti-reflection-thermal isolation film system (3) of glass cover-plate (8) upper surface;
Apply ointment or plaster at the Fresnel Lenses (6) of glass plate (8) lower surface;
The soft heat conductive silica gel insulation spacer (11) of liner below said photovoltaic cell (10);
The aluminum alloy fin (12) that lower shoe (7) fixed outside below said condensation photovoltaic battery (10) is connected.
2. novel low-concentration photovoltaic electricity generation module according to claim 1 is characterized in that:
It is dovetail groove that described lower shoe (7) is processed the cross section by aluminium alloy.
3. novel low-concentration photovoltaic electricity generation module according to claim 1 is characterized in that:
Said photovoltaic cell (10) is arranged in the location notch (9) of dovetail groove bottom surface of lower shoe (7).
4. novel low-concentration photovoltaic electricity generation module according to claim 1 is characterized in that:
Described glass plate (8) is the tempering ultra-clear glasses, light transmittance >=91%.
5. novel low-concentration photovoltaic electricity generation module according to claim 1 is characterized in that:
Described anti-reflection-thermal isolation film system (3) is a thermal isolation film system, also is anti-reflection film system, form by 1 layer or 2 layers or multilayer refractive index different compounds film.
6. low-concentration photovoltaic electricity generation module according to claim 5 is characterized in that:
Described compound film includes but not limited to the rete that utilizes titanium dioxide, silicon dioxide, zirconium dioxide, alundum (Al, magnesium fluoride material on glass plate, to be coated with; Its thickness is 1/4th centre wavelengths, and its centre wavelength can be set in the significant wave segment limit.
7. novel low-concentration photovoltaic electricity generation module according to claim 1 is characterized in that:
Described Fresnel Lenses (6) is a glass-based silica gel linear pattern Fresnel Lenses.
8. according to claim 1 or 3 described novel low-concentration photovoltaic electricity generation modules, it is characterized in that:
Described photovoltaic cell (10) is a monocrystalline silicon condensation photovoltaic battery, and light concentrating times is 6-10 times, photoelectric conversion efficiency >=23%.
9. novel low-concentration photovoltaic electricity generation module according to claim 1 is characterized in that:
Described side plate (1) is processed for aluminium alloy.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106129153A (en) * | 2016-08-23 | 2016-11-16 | 江苏亚太新能源科技有限公司 | A kind of solar energy photovoltaic glass |
| CN108123676A (en) * | 2016-11-30 | 2018-06-05 | 上海太阳能科技有限公司 | Low-concentration photovoltaic battery component |
-
2012
- 2012-09-05 CN CN2012103250372A patent/CN102810592A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106129153A (en) * | 2016-08-23 | 2016-11-16 | 江苏亚太新能源科技有限公司 | A kind of solar energy photovoltaic glass |
| CN108123676A (en) * | 2016-11-30 | 2018-06-05 | 上海太阳能科技有限公司 | Low-concentration photovoltaic battery component |
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Application publication date: 20121205 |