CN101752438A - Encapsulating structure with reflecting layer for high-efficiency energy-saving focusing type solar energy power generating device - Google Patents
Encapsulating structure with reflecting layer for high-efficiency energy-saving focusing type solar energy power generating device Download PDFInfo
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- CN101752438A CN101752438A CN201010018336A CN201010018336A CN101752438A CN 101752438 A CN101752438 A CN 101752438A CN 201010018336 A CN201010018336 A CN 201010018336A CN 201010018336 A CN201010018336 A CN 201010018336A CN 101752438 A CN101752438 A CN 101752438A
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- reflection substrate
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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Abstract
The invention relates to an encapsulating structure with a reflecting layer for a high-efficiency energy-saving focusing type solar energy power generating device. The encapsulating structure comprises a reflecting base plate, a power generating chip, a focusing lens and silica gel. The power generating chip is arranged on the reflecting base plate, the focusing lens is arranged on the power generating chip in pressing and covering manners, and the silica gel is arranged between the focusing lens and the reflecting base plate. The reflecting base plate is provided with a reflecting part on the outer wall of the other end correspondingly to the power generating chip, and the reflecting layer is plated on the reflecting part; the reflecting base plate utilizes the reflecting layer to completely reflect light rays emitted into the reflecting base plate to the surface in contact with the power generating chip; fixed brackets are respectively arranged at the two ends of the reflecting base plate in contact with the focusing lens, conductive electrodes which are fixedly connected are arranged in the fixed brackets, and the power generating chip is electrically connected with the conductive electrodes; conductive pins which are fixedly connected are arranged on the fixed brackets, and the conductive electrodes are electrically connected with the conductive pins. The encapsulating structure has the characteristics of good heat conduction property, good light transmission property, low cost, long service life and convenient installing as well as using; moreover, the light utilizing rate is increased.
Description
Technical field
The present invention relates to a kind of device of solar generating encapsulating structure, especially a kind of packaging structure for high-efficiency energy-saving focusing solar generating device with reflectance coating.
Background technology
It is very huge to be radiated at tellurian solar energy, is radiated at tellurian solar energy in about 40 minutes, just is enough to the consumption for 1 year energy of global human.We can say that solar energy is really inexhaustible, the nexhaustible energy.And solar power generation is definitely clean, does not produce public hazards.So it is perfect energy sources that solar power generation is described as.
Obtain electric power from solar energy, need to carry out light-to-current inversion and realize by solar cell.It has following characteristics with other power supply electricity generating principles were different fully in the past: 1. do not have exhausted dangerous; 2. absolute clean (nuisanceless); 3. be not subjected to the restriction of resource distribution region; 4. can generate electricity nearby in electricity consumption place; 5. can the source quality height; 6. the user is acceptant on the emotion; The time of 7. obtaining energy cost is short.Weak point is: 1. Zhao She Energy distribution density is little, promptly will take huge area; 2. the same four seasons of the energy of Huo Deing, reach and rain or shine wait meteorological condition relevant round the clock.But generally speaking, one flaw cannot mar the jade, and as new forms of energy, solar energy has very big advantage, therefore is subjected to the attention of countries in the world.
The photovoltaic industrial chain comprises links such as the production of crystalline silicon raw material, silicon rod and silicon chip production, solar cell manufacturing, component package, photovoltaic production and photovoltaic generating system.Wherein the silicon raw material is most important production link, and the saying of " person is the king to gather around silicon " was in the industry cycle once arranged.At present, in the world solar-energy photo-voltaic cell more than 90% being that monocrystalline silicon or polysilicon are that raw material are produced.Pendulum has four main problems to need to solve in production of polysilicon at present: cut down the consumption of energy, reduce pollution, improve the quality, enlarge output.The present most dependence on import of China's solar power silicon materials industry, therefore must develop skill changes situation under one's control.
In the photovoltaic industry chain of the whole world, the high purity silicon material not only requires the purity of silicon up to 7～9 9, and impurity such as boron wherein, phosphorus are limited in tens ppt (part per trillion), and it is that photovoltaic enterprise produces the required core material of solar cell.Therefore, the high purity silicon material synthetic, refining, purify, produce the industry that also just becomes in the photovoltaic industry cluster upstream.How the purer silicon of more efficient use improves light energy conversion efficiency simultaneously is eager especially.At present, although the silicon raw material mineral reserve reserves of China account for 25% of world's gross reserves, the required raw material overwhelming majority of domestic manufacture of solar cells enterprise (as Shang De, YINGLI SOLAR etc.) need be from external import.This is because the silicon material that is used for manufacture of solar cells mainly is to refine monocrystalline silicon and the polysilicon that forms from the silicon raw material by different refinement modes.In China, existing high purity silicon raw material production technology is compared with western developed country, and part still has some deficits at aspects such as output and energy consumptions.Thus, this not only increases the production cost of enterprise greatly, become more that the link development upstream of restriction current China photovoltaic industry is difficult to go beyond " bottleneck ", when making our country sell the coarse raw materials of high energy consumption, high pollution, buy the HIGH-PURITY SILICON material back with high price with very low price.
It is reported that though China's silicon material industry starts to walk early (the 1950's), because production scale is little, technology falls behind, environmental pollution is serious, consumption is big, cost is high, most enterprises stop production in succession or change the line of production because of loss.To only remaining high eyebrow semi-conducting material factory of China in 2004 and two tame manufacturing enterprises of Luoyang monocrystalline silicon Co., Ltd, its production capacity only is 100 tons/year, and the silicon material actual production that can satisfy the manufacture of solar cells needs has only 80 tons.The expert estimates, the silicon material demand that China in 2010 is used for manufacture of solar cells will reach 4365 tons, and 2015 is 1.62 ten thousand tons.If do not change the production status of domestic polysilicon with independent intellectual property right, the situation that China's silicon material industry is limited by the international market can't change, and this will jeopardize further developing of China's photovoltaic industry.
Make solar power generation really reach realistic scale, the one, improve the solar photoelectric conversion efficiency and reduce its cost, the 2nd, realize that solar power generation is with present grid network.
At present, solar cell mainly contains three kinds of monocrystalline silicon, polysilicon, amorphous silicon.The single crystal silicon solar cell conversion efficiency is the highest, has reached more than 20%, and amorphous silicon solar cell conversion efficiency is minimum 5%, and what be hopeful most from now on to be used for general generating will be this monocrystalline silicon battery.But its monocrystalline silicon large tracts of land assembly causes its cost high, here a Zui Da difficult problem is how to reduce the use amount of monocrystalline silicon, improve his photoelectric conversion rate simultaneously, how every watt of generating equipment price is dropped to 0.4～1 dollar of this level, just be enough to present generation mode competition.
The method that modern age, applying X-ray was analyzed has specifically disclosed the internal structure of a large amount of crystal.Prove that now no matter its profile of all crystal how, its inside particle (atom, ion and molecule) is all made rule and arranged, the cycle that this rule mainly shows as particle repeats, thereby has constituted so-called clathrate structure.Therefore, according to the notion in modern times, every particle is done the rule arrangement in the material, promptly has grid system person and is called crystalline.Crystalline is crystal at the finite part in space.Thus, we can to crystal give a definition for: crystal is the solid with grid system.
Crystal is the solid with grid system, so claim that it is a crystal.And the quartz glass shape is like solid, but its inner particle do not make rule and arrange, and promptly do not have a grid system, so claim that it is noncrystalline or amorphous body.Specifically, the arrangement of the oxygen atom in quartzy crystal around each silicon atom is the same, and this rule is called the short range rule; Moreover, this arrangement mode of silicon and oxygen clocklike repeats in the space and forms grid system in quartzy crystal, and this rule is called long-range rule.But in the structure of quartz glass, have only the short range rule, then do not have long-range rule, also just can not form grid system, and be called amorphous body.
Because the two internal structure of quartzy and quartz glass is different, so also difference of their physical property.See following table for details:
| Title | Polarity | Index of refraction | Hardness | Density | Thermal conductivity |
| The synthetic quartz crystal | Heterogeneous body | ??1.544-1.53??3 | ??7 | ??2.65g/cm3 | ??140-264 |
| Quartz glass | Amorphous body | ??1.460 | ??6.5 | ??2.20g/cm3 | ??33 |
| Optical glass K9 | Amorphous body | ??1.516 | ??5.2 | ??2.0g/cm3 | ??7-20 |
| High pbo glass | Amorphous body | ??1.46-1.7 | ??4.6??5 | ??2.1g/cm3 | ??10-22 |
Can obtain conclusion in above chart, quartzy crystal and glass are that in essence different are arranged.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, a kind of packaging structure for high-efficiency energy-saving focusing solar generating device with reflector is provided, and it has good thermal conductivity and light transmission, has improved the utilance of light, with low cost, long service life, easy to install.
According to technical scheme provided by the invention, described a kind of packaging structure for high-efficiency energy-saving focusing solar generating device with reflectance coating, comprise reflection substrate, be positioned at power-generating chip on the reflection substrate, gland the condenser lens on the power-generating chip and be positioned at condenser lens and reflection substrate between silica gel; Described reflection substrate is provided with reflecting part corresponding to the outer wall of the other end of placing power-generating chip, is coated with the reflector on the described reflecting part; The light that reflection substrate utilizes the reflector will inject in the reflection substrate is totally reflected to the surface of placing power-generating chip; The contacted two ends of reflection substrate and condenser lens are equipped with fixed support, and described fixed support and reflection substrate, condenser lens constitute airtight housing; Be provided with fixedly connected conductive electrode in the fixed support, described conductive electrode and power-generating chip electrically connect; Fixed support is provided with fixedly connected conductive base pin, and described conductive base pin and conductive electrode electrically connect.
Described reflector is for to aluminize or silver-plated coating at the reflection substrate outer wall.Described reflection substrate is made by transparent earth silicon material.Described condenser lens is made by transparent earth silicon material.Described fixed support utilizes conductive base pin to be installed on the base plate, and described base plate is provided with the jack that some permission conductive base pins are set.Also be provided with positive and negative conductor wire on the described base plate, the conductive base pin that described conductor wire will be embedded on the base plate is in series.The lower end of described conductive base pin is provided with lower hook body.The end of described base plate is provided with connecting hole.
Advantage of the present invention:
1, the present invention has adopted the encapsulating structure element of the earth silicon material of high-purity transparent as reflection substrate, utilize that outer wall is provided with the reflector on the reflection substrate, make the light of injecting in the reflection substrate, through repeatedly reflection, finally arrive and the contacted reflection substrate of power-generating chip surface with the attitudinal reflexes of total reflection, power-generating chip can improve the photoelectric conversion efficiency of power-generating chip greatly corresponding to absorbing solar energy with the contacted surface of reflection substrate.
2, the present invention has high-termal conductivity according to transparent earth silicon material, the heat energy in the sunray can well be derived packaging body, has improved the useful life of solar energy encapsulation greatly.
3, the present invention utilizes the lens light gathering characteristic to reduce the use amount of monocrystalline silicon greatly simultaneously, and the use amount of power-generating chip is reduced greatly, therefore cost of electricity-generating is reduced greatly.
4, the present invention is the power-generating chip miniaturization, and uses the base plate that matches with this silicon chip encapsulating structure to be applied to more wide scope more flexibly with device of solar generating.
5, the present invention is under the prerequisite of using with the chip of homalographic, and the upper and lower surface of power-generating chip can be received solar energy simultaneously, and electric energy can be exported simultaneously in the two sides of power-generating chip, makes solar chip can export more electric energy.
6, easy for installation, it is convenient to change, and long service life is non-maintaining.
Description of drawings
Fig. 1 is the structural representation of solar power generation element among the present invention.
Fig. 2 is the construction profile figure of device of solar generating among the present invention.
Embodiment
The invention will be further described below in conjunction with concrete drawings and Examples.
As Fig. 1～shown in Figure 2: the present invention includes reflection substrate 1, reflector 2, condenser lens 3, power-generating chip 4, conductive electrode 5, silica gel 6, fixed support 7, conductive base pin 8, lower hook body 9, base plate 10, jack 11, conductive electric wire 12 and connecting hole 13.
As shown in Figure 1: described power-generating chip 4 is placed on the reflection substrate 1, and described power-generating chip 4 upper press covers have condenser lens 3, and condenser lens 3 and power-generating chip 4,1 of reflection substrate utilize silica gel 6 bonding fixing; Described silica gel 6 can also be protected power-generating chip 4 and 5 circuits that are connected of power-generating chip 4 and conductive electrode simultaneously.Described condenser lens 3 utilizes fixed support 7 to fixedly connected with the two ends of reflection substrate 1, guarantees the bonding strength of condenser lens 3 and reflection substrate 1; Fixed support 7 and condenser lens 3,1 of reflection substrate constitute airtight housing, the connecting circuit of protection power-generating chip 4.Described reflection substrate 1 is provided with reflecting part corresponding to the other end of placing power-generating chip 4, and described reflecting part is provided with reflector 2, and reflector 2 is used for reflection substrate 1 is injected in total reflection from condenser lens 3 light for to aluminize or silver-plated coating.Condenser lens 3 is with directive power-generating chip behind the light-ray condensing 4 and reflection substrate 1 contacted surface, and power-generating chip 4 is corresponding to after absorbing light with condenser lens 3 contacted surfaces, by conductive electrode 5 outside transmission of electric energy.The area of power-generating chip 4 is limited, and the light that condenser lens 3 penetrates can partly be injected in the reflection substrate 1; Reflector 2 is set on the reflection substrate 1, enter the light in the reflection substrate 1, under the effect in reflector 2, with the mode directive power-generating chip 4 of total reflection corresponding to reflection substrate 1 contacted surface, make two surfaces of power-generating chip 4 all can absorb light, two surfaces can be simultaneously outside transmission of electric energy, improved the transfer ratio of light and the utilance of power-generating chip 4, help reducing the cost of generating.The upper end of described conductive base pin 8 and fixed support 7 are fixedly connected; in the described fixed support 7 fixedly connected conductive electrode 5 is set; conductive electrode 5 utilizes silica gel 6 to be fixed in the fixed support 7, can protect the circuit of 4 of conductive electrode 5 and conductive electrode 5 and power-generating chip.Conductive base pin 8 electrically connects with conductive electrode 5, and power-generating chip 4 is utilized conductive electrode 5, conductive base pin 8 outside transmission of electric energy.
Described reflection substrate 1, reflector 2, condenser lens 3, power-generating chip 4, conductive electrode 5, fixed support 7 and conductive base pin 8 constitute the solar power generation element, outwards export electric energy.
As shown in Figure 2: the lower end of described conductive base pin 8 is provided with lower hook body 9, and conductive base pin 8 utilizes the jack 11 on lower hook body 9 and the base plate 10 to fix.Base plate 10 is provided with some jacks 11, is convenient to a plurality of solar power generation elements and is placed on the base plate 10, constitutes the array of solar power generation element.The conductive base pin 8 that described insertion jack is 11 li utilizes conductive electric wire 12 to be in series.The end of described base plate 10 is provided with connecting hole 13, is used for the serial connection of a plurality of base plates 10, can outwards carry a large amount of electric energy.
Described reflection substrate 1 is made by the earth silicon material of high-purity transparent, becomes with the crystal polymorph system as transparent glass; Described condenser lens 3 is made by the earth silicon material of high-purity transparent, makes as transparent glass.
Described reflection substrate 1 can be a profile arbitrarily, and reflector 2 is set on the reflection substrate 1.The mode of luminous energy by total reflection in the reflection substrate 1 will be injected in described reflector 2, inject power-generating chip 4 and reflection substrate 1 contacted surface once more, make two surfaces of power-generating chip 4 all can absorb solar energy, reach the order ground that improves energy output.
Such scheme can use the solar power generation element anywhere.Hang on the ridge or the use down of the first-class multiple environment of outdoor outer body of wall.
Embodiment
The condenser lens of being made by glass 3 is single convex aspheric surface lens of the external diameter of a 50mm, is 33mm apart from focus lens 3 body height.Direction in the base plane of condenser lens 3 bodies has an outer step of being convenient to install.
1 body profile of the reflection substrate that glass is made is a hemisphere, the length of external diameter is 52mm, and this reflection substrate 1 is being a more complete hemisphere as reflecting curved surface, the one deck of plating high reflection layer 2 is arranged in the outside of hemisphere, make reflection substrate 1 become the substrate of total reflection light by described reflector 2.
1 parts of glass-reflected substrate as substrate, conductive electrode 5 on the reflection substrate 1 is by the mode one-step mould injection molded of injection molded, glass-reflected substrate 1 is fixed on the centre of moulding, conductive electrode 5 electrically connects by fixed support 7 and conductive base pin 8, forms glass-reflected substrate 1.
Two surfaces up and down of described power-generating chip 4 bodies all can absorb sunray, all can be generated electricity in two surfaces up and down of power-generating chip 4, and the service efficiency that makes power-generating chip 4 from face is to getting very big lifting.
As depicted in figs. 1 and 2: during use, sunray is injected from condenser lens 3, and power-generating chip 4 be corresponding to can absorbing solar energy with condenser lens 3 contacted surfaces, and by conductive electrode 5, conductive base pin 8 outside transmission of electric energy.Power-generating chip 4 surperficial light-absorbing limited in one's ability makes the light part of condenser lens 3 be absorbed by power-generating chip 4, another part directive reflection substrate 1.Reflection substrate 1 adopts the glass or the good material of other light transmissions of high-purity transparent to make, and has good thermal conductivity and light transmission, and by be coated with reflector 2 on reflection substrate 1, makes reflection substrate 1 and reflector 2 form the substrate of total reflection.Enter the light of reflection substrate 1 from condenser lens 3, through after the emission repeatedly, by power-generating chip 4 corresponding to the reflection substrate described absorption in 1 contacted surface.Two surfaces of described power-generating chip 4 all can absorb sunray, can send electric energy simultaneously, have improved the conversion efficiency of light and the utilance of power-generating chip 4.Electric energy all can be sent in 4, two surfaces of identical power-generating chip, and the generating efficiency height has reduced cost of electricity-generating.Condenser lens 3 converges sunray, and condenser lens 3 glands can be protected power-generating chip 4 on power-generating chip 4, can prolong the useful life of the encapsulating structure of solar power generation element.
Claims (8)
1. packaging structure for high-efficiency energy-saving focusing solar generating device with reflectance coating, comprise reflection substrate (1), be positioned at power-generating chip (4) on the reflection substrate (1), gland the condenser lens (3) on the power-generating chip (4) and be positioned at condenser lens (3) and reflection substrate (1) between silica gel (6), it is characterized in that: described reflection substrate (1) is provided with reflecting part corresponding to the outer wall of the other end of placing power-generating chip (4), is coated with reflector (2) on the described reflecting part; The light that reflection substrate (1) utilizes reflector (2) will inject in the reflection substrate (1) is totally reflected to the surface of placing power-generating chip (4); Reflection substrate (1) is equipped with fixed support (7) with the contacted two ends of condenser lens (3), and described fixed support (7) constitutes airtight housing with reflection substrate (1), condenser lens (3); Be provided with fixedly connected conductive electrode (5) in the fixed support (7), described conductive electrode (5) electrically connects with power-generating chip (4); Fixed support (7) is provided with fixedly connected conductive base pin (8), and described conductive base pin (8) electrically connects with conductive electrode (5).
2. according to the described packaging structure for high-efficiency energy-saving focusing solar generating device with reflectance coating of claim 1, it is characterized in that: described reflector (2) are for to aluminize or silver-plated coating at reflection substrate (1) outer wall.
3. according to the described packaging structure for high-efficiency energy-saving focusing solar generating device with reflectance coating of claim 1, it is characterized in that: described reflection substrate (1) is made by transparent earth silicon material.
4. according to the described packaging structure for high-efficiency energy-saving focusing solar generating device with reflectance coating of claim 1, it is characterized in that: described condenser lens (3) is made by transparent earth silicon material.
5. according to the described packaging structure for high-efficiency energy-saving focusing solar generating device of claim 1 with reflectance coating, it is characterized in that: described fixed support (7) utilizes conductive base pin (8) to be installed on the base plate (10), and described base plate (10) is provided with the jack (11) that some permission conductive base pins (8) are set.
6. according to the described packaging structure for high-efficiency energy-saving focusing solar generating device of claim 5 with reflectance coating, it is characterized in that: also be provided with positive and negative conductor wire (12) on the described base plate (10), the conductive base pin (8) that described conductor wire (12) will be embedded on the base plate (10) is in series.
7. according to the described packaging structure for high-efficiency energy-saving focusing solar generating device with reflectance coating of claim 1, it is characterized in that: the lower end of described conductive base pin (8) is provided with lower hook body (9).
8. according to the described packaging structure for high-efficiency energy-saving focusing solar generating device with reflectance coating of claim 5, it is characterized in that: the end of described base plate (10) is provided with connecting hole (13).
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| CN201010018336A CN101752438A (en) | 2010-01-14 | 2010-01-14 | Encapsulating structure with reflecting layer for high-efficiency energy-saving focusing type solar energy power generating device |
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| CN201010018336A CN101752438A (en) | 2010-01-14 | 2010-01-14 | Encapsulating structure with reflecting layer for high-efficiency energy-saving focusing type solar energy power generating device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104749670A (en) * | 2014-07-26 | 2015-07-01 | 周红玉 | Light reflecting plate for solar device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104749670A (en) * | 2014-07-26 | 2015-07-01 | 周红玉 | Light reflecting plate for solar device |
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Application publication date: 20100623 |