CN105634396A - Tracking-free light-condensing device - Google Patents
Tracking-free light-condensing device Download PDFInfo
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- CN105634396A CN105634396A CN201410597321.4A CN201410597321A CN105634396A CN 105634396 A CN105634396 A CN 105634396A CN 201410597321 A CN201410597321 A CN 201410597321A CN 105634396 A CN105634396 A CN 105634396A
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- secondary optics
- optics element
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- reflective
- sunlight
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- 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
- Y02E10/52—PV systems with concentrators
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Abstract
The invention discloses a tracking-free light-condensing device comprising a reflective secondary optical element (10), a main condenser (20), and a transmittance secondary optical element (30). The reflective secondary optical element (10) is configured in funnel-shaped structure equipped with a first port (11) and a second port (22). The main condenser (20) is connected with the first port (11) of the reflective secondary optical element (10) and is used for condensing sunlight preliminarily. The transmittance secondary optical element (30) is connected with the second port (22) of the reflective secondary optical element (10) and is mainly used for condensing the sunlight preliminarily condensed by the main condenser (20) and the sunlight reflected by the reflective secondary optical element (10) again and transferring the sunlight condensed again to the surface of a solar cell. The light-condensing device may greatly enlarge the acceptance angle of a conventional light-condensing optical system by means of simple combination so as to guarantee that a light-condensing concentrator photovoltaic system operates high efficiently without a high-precision tracking system, and reduces the cost of photovoltaic power generation.
Description
Technical field
The invention belongs to field of photoelectric technology, specifically, relate to one and exempt from tracing collection device.
Background technology
Along with the reserves of fossil energy constantly reduce, and the cost of fossil energy rises steadily, and people start to pay attention to the development and utilization of regenerative resource. Solar energy is regenerative resource the abundantest on the earth, and photovoltaic generation obtains great development as the technology of the free of contamination solar energy resources of a kind of development of new. Wherein, light-focusing type photovoltaic power generation technology, as a branch of field of photovoltaic power generation, reduces space with the generating efficiency of its superelevation and bigger cost and is subject to people and more and more payes attention to.
Can, in photovoltaic power generation technology, utilize the key of solar energy to be that improve focusing ratio and tracking accuracy to economical and efficient, therefore current high power concentrator type photovoltaic generating system must be equipped with high-precision Mechanical tracking systems. But showing according to related data, high-precision Mechanical tracking systems cost will account for about the 30% of whole high power concentrator type photovoltaic system totle drilling cost, this seriously inhibits the further reduction of concentrating photovoltaic power generation cost. For this, the research institution of various countries starts competitively to develop to exempt from tracing collection type photovoltaic power generation apparatus. Although the structure of these photovoltaic power generation apparatus is all relatively new, but under the present art, it cannot meet the demand of marketization application, is therefore badly in need of a kind of novel combination type at present and exempts from tracing collection optical system to break through this limitation, uses and meet instructions for use.
Summary of the invention
For solving above-mentioned prior art Problems existing, the invention provides one and exempt from tracing collection device, this apparatus structure is simple, and can ensure that concentration photovoltaic system Effec-tive Function under the premise without high-precision tracking system, thus reducing photovoltaic generation cost.
In order to reach foregoing invention purpose, present invention employs following technical scheme:
One exempts from tracing collection device, it is characterised in that including: reflective secondary optics element, has the first port and the funnel-shaped structure of second two ports of port; Main condenser, is connected to the first port of described reflective secondary optics element, for being assembled for the first time by sunlight; Transmission-type secondary optics element, it is connected to the second port of described reflective secondary optics element, for the sunlight assembled for the first time through described main condenser and the sunlight after described reflective secondary optics element reflects are assembled again, and the sunlight again assembled is transmitted to solar battery surface.
Further, described reflective secondary optics element includes four side plates, and described four side plates are spliced to form the funnel-shaped structure with the first port and the second port, and the area of described first port is more than the area of described second port.
Further, the cross section of the reflective secondary optics element that described four side plates are spliced to form is rectangle.
Further, the material of described reflective secondary optics element is highly reflective specular aluminium film.
Further, described main condenser is Fresnel Lenses, and the serrated face of described Fresnel Lenses is towards described reflective secondary optics element internal.
Further, the material of described Fresnel Lenses is polymethyl methacrylate optical plastic.
Further, described transmission-type secondary optics element is positioned at the inside of described reflective secondary optics element, and the end face towards described reflective secondary optics element-external of described transmission-type secondary optics element is concordant with described second port.
Further, described transmission-type secondary optics element is wedge shape triangular prism, and the wedge of described triangular prism is towards the inside of described reflective secondary optics element, and the bottom surface of described triangular prism is concordant with the second port of described reflective secondary condensation element.
Further, the focus of described main condenser is positioned at the bottom surface of described wedge shape triangular prism.
Further, the material of described triangular prism is optical glass.
The present invention by being respectively provided with main condenser and transmission-type secondary optics element at the first port of funnelform reflective secondary optics element and the second port, parallel sunlight is made to assemble for the first time through main condenser, and then the sunlight assembled through main condenser is reflected by reflective secondary optics element, by the sunlight assembled through main condenser through transmission-type secondary optics element and it is reflected the sunlight of formula secondary optics element reflection and again assembles after, and by the sunlight transmission again assembled to solar battery surface. Described beam condensing unit can reach to increase substantially the purpose of the acceptance angle of tradition light-gathering optics by simple combination, so ensure that concentration photovoltaic system under the premise without high-precision tracking system can Effec-tive Function, reduce photovoltaic generation cost.
Accompanying drawing explanation
What carry out in conjunction with the drawings is described below, and the above-mentioned and other side of embodiments of the invention, feature and advantage will become clearer from, in accompanying drawing:
Fig. 1 is the generalized section exempting from tracing collection device according to an embodiment of the invention;
Fig. 2 is the structural representation of reflective according to an embodiment of the invention secondary optics element;
Fig. 3 is the structural representation of transmission-type secondary optics element according to an embodiment of the invention.
Detailed description of the invention
Hereinafter, with reference to the accompanying drawings to embodiments of the invention are described in detail. However, it is possible to implement the present invention in many different forms, and the present invention should not be construed as limited to the specific embodiment set forth here. On the contrary, it is provided that these embodiments are to explain principles of the invention and practical application thereof, so that others skilled in the art are it will be appreciated that various embodiments of the present invention and be suitable for the various amendments of specific intended application. In the accompanying drawings, for the sake of clarity, it is possible to exaggerate the shape and size of element, and identical label will be used to indicate same or analogous element all the time.
Fig. 1 is the generalized section exempting from tracing collection device according to an embodiment of the invention, Fig. 2 is the structural representation of reflective according to an embodiment of the invention secondary optics element, and Fig. 3 is the structural representation according to the transmission-type secondary optics element exempted from tracing collection device.
With reference to Fig. 1, include according to the tracing collection device of exempting from of the present invention: reflective secondary optics element 10, there is the funnel-shaped structure of the first port 11 and second 12 two ports of port; Main condenser 20, is connected to the first port 11 of reflective secondary optics element 10, for being assembled for the first time by sunlight; Transmission-type secondary optics element 30, it is connected to the second port 12 of reflective secondary optics element 10, for by the sunlight assembled for the first time through main condenser 20 be reflected the sunlight after formula secondary optics element 10 reflects and again assemble, and the sunlight again assembled is transferred to the surface of solar cell 40.
Exempting from tracing collection device according to the present invention, transmission-type secondary optics element 30 is positioned at the inside of reflective secondary optics element 10, and end face and the second port 12 outside the orienting reflex formula secondary optics element 10 of transmission-type secondary optics element 30 is concordant.
In the present embodiment, main condenser 20 is curved surface non-imaged utilizing line-focus Fresnel lens, and the serrated face orienting reflex formula secondary optics element 10 of curved surface non-imaged utilizing line-focus Fresnel lens is internal, and its material is polymethyl methacrylate optical plastic; The use of curved surface non-imaged utilizing line-focus Fresnel lens can meet reduction cost and alleviate the requirement of weight; Meanwhile, the sunlight through curved surface non-imaged utilizing line-focus Fresnel lens does not also have the phenomenon that light reduces, and parallel sunlight can be in strip focal spot and expose to reflective secondary optics element 10 inside.
Exempt from the reflective secondary optics element 10 in tracing collection device according to an embodiment of the invention and there is funnel-shaped structure, and there are the first port 11 and 12 two ports of the second port; Reflective secondary optics element 10 includes four side plates, the rectangular side panels that two of which is equal is oppositely arranged, two equal isosceles trapezoid side plates are oppositely arranged, such four side plates are spliced to form the funnel-shaped structure with the first port 11 and second 12 two ports of port, and the area of the first port 11 is more than the area of the second port 12; Meanwhile, the cross section of the reflective secondary optics element 10 that four side plates are spliced to form is rectangle, can fit like a glove the solar cell 40 of strip as in figure 2 it is shown, the cross section of the second port 12 is rectangle.
In the present embodiment, the material of reflective secondary optics element 10 is highly reflective specular aluminium film; The performance of high reflection meets its performance requirement as reflective secondary optics element 10, the sunlight assembled through main condenser 20 can be reflected, and arrive transmission-type secondary optics element 30, and through transmission-type secondary optics element 30, the sunlight assembled is transmitted to solar cell 40 surface.
The transmission-type secondary optics element 30 exempted from tracing collection device according to the present invention is wedge shape triangular prism, as shown in Figure 3, and the wedge orienting reflex formula secondary optics element 10 of described triangular prism is internal, the bottom surface of triangular prism is concordant with the second port 12 of reflective secondary condensation element 10 simultaneously.
In the present embodiment, the material of triangular prism is optical glass, but the present invention is not restricted to this.
Exempting from tracing collection device according to the present invention, the first port 11 place of reflective secondary optics element 10 it is arranged at as the curved surface non-imaged utilizing line-focus Fresnel lens of main condenser 20, transmission-type secondary optics element 30 wedgelike triangular prism is arranged at the second port 12 place of the reflective secondary optics element 10 of funnel-form, and the bottom surface of triangular prism is concordant with the second port 12 of reflective secondary condensation element 10, therefore the degree of depth of the reflective secondary optics element 10 of funnel-form is needed the bottom surface asking the focus of curved surface non-imaged utilizing line-focus Fresnel lens to be positioned at wedge shape triangular prism.
When a branch of parallel solar irradiation be incident upon according to the present invention when exempting from tracing collection device, first sunlight is assembled by main condenser 20 for the first time, and fractional transmission is to reflective secondary optics element 10 surface, fractional transmission is to transmission-type secondary optics element 30 surface; Then the sunlight assembled for the first time through main condenser 20 is reflected by reflective secondary optics element 10, and transmission is to transmission-type secondary optics element 30 surface; Finally, transmission-type secondary optics element 30 will carry out the sunlight of first convergence and is reflected the sunlight that formula secondary optics element 10 carries out reflecting and again assembles through main condenser 20, and the sunlight again assembled is transmitted to solar cell 40 surface, thus completing opto-electronic conversion.
Tracing collection device of exempting from according to the present invention passes through main condenser 20, reflective secondary optics element 10 and transmission-type secondary optics element 30 are simply combined, the acceptance angle of tradition light-gathering optics can be increased substantially, and then ensure that concentration photovoltaic system Effec-tive Function under the premise without high-precision tracking system, reduce photovoltaic generation cost.
Although illustrate and describing the present invention with reference to specific embodiment, but it should be appreciated by those skilled in the art that: when without departing from the spirit and scope of the present invention limited by claim and equivalent thereof, the various changes in form and details can be carried out at this.
Claims (10)
1. exempt from tracing collection device for one kind, it is characterised in that including:
Reflective secondary optics element (10), has the first port (11) and the funnel-shaped structure of second (12) two ports of port;
Main condenser (20), is connected to first port (11) of described reflective secondary optics element (10), for being assembled for the first time by sunlight;
Transmission-type secondary optics element (30), it is connected to second port (12) of described reflective secondary optics element (10), for the sunlight assembled for the first time through described main condenser (20) and the sunlight after described reflective secondary optics element (10) is reflected are assembled again, and the sunlight again assembled is transmitted to solar battery surface.
2. beam condensing unit according to claim 1, it is characterized in that, described reflective secondary optics element (10) includes four side plates, described four side plates are spliced to form the funnel-shaped structure with the first port (11) and the second port (22), and the area of described first port (11) is more than the area of described second port (12).
3. beam condensing unit according to claim 2, it is characterised in that the cross section of the reflective secondary optics element (10) that described four side plates are spliced to form is rectangle.
4. beam condensing unit according to claim 2, it is characterised in that the material of described reflective secondary optics element (10) is highly reflective specular aluminium film.
5. beam condensing unit according to claim 1, it is characterised in that described main condenser (20) is Fresnel Lenses, the serrated face of described Fresnel Lenses is internal towards described reflective secondary optics element (10).
6. beam condensing unit according to claim 5, it is characterised in that the material of described Fresnel Lenses is polymethyl methacrylate optical plastic.
7. according to the arbitrary described beam condensing unit of claim 1-6, it is characterized in that, described transmission-type secondary optics element (30) is positioned at the inside of described reflective secondary optics element (10), and the end face towards described reflective secondary optics element (10) outside of described transmission-type secondary optics element (30) is concordant with described second port (12).
8. beam condensing unit according to claim 7, it is characterized in that, described transmission-type secondary optics element (30) is wedge shape triangular prism, and the wedge of described triangular prism is towards the inside of described reflective secondary optics element (10), the bottom surface of described triangular prism is concordant with second port (12) of described reflective secondary condensation element (10).
9. beam condensing unit according to claim 8, it is characterised in that the focus of described main condenser (20) is positioned at the bottom surface of described wedge shape triangular prism.
10. beam condensing unit according to claim 8, it is characterised in that the material of described triangular prism is optical glass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410597321.4A CN105634396A (en) | 2014-10-29 | 2014-10-29 | Tracking-free light-condensing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410597321.4A CN105634396A (en) | 2014-10-29 | 2014-10-29 | Tracking-free light-condensing device |
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| Publication Number | Publication Date |
|---|---|
| CN105634396A true CN105634396A (en) | 2016-06-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410597321.4A Pending CN105634396A (en) | 2014-10-29 | 2014-10-29 | Tracking-free light-condensing device |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201117666Y (en) * | 2007-10-24 | 2008-09-17 | 陈祖培 | Light gathering solar cell assembly |
| WO2009066720A1 (en) * | 2007-11-22 | 2009-05-28 | Sharp Kabushiki Kaisha | Solar cell module and photovoltaic unit |
| CN101813821A (en) * | 2009-02-25 | 2010-08-25 | 苏州纳米技术与纳米仿生研究所 | Secondary light concentrating/light uniformizing integrated device applied to concentrating photovoltaic module |
| CN102983198A (en) * | 2011-09-06 | 2013-03-20 | 上海久能能源科技发展有限公司 | High-power concentrating solar cell |
| CN103311351A (en) * | 2013-06-15 | 2013-09-18 | 刘艳芳 | Concentrating photovoltaic sunlight gathering device |
| CN103888050A (en) * | 2012-12-20 | 2014-06-25 | 上海久能能源科技发展有限公司 | Power generation and heat supply joint device for concentrator reflection type photovoltaic module |
| CN203747745U (en) * | 2014-01-07 | 2014-07-30 | 武汉凹伟能源科技有限公司 | High light-concentrated solar lighting module group |
-
2014
- 2014-10-29 CN CN201410597321.4A patent/CN105634396A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201117666Y (en) * | 2007-10-24 | 2008-09-17 | 陈祖培 | Light gathering solar cell assembly |
| WO2009066720A1 (en) * | 2007-11-22 | 2009-05-28 | Sharp Kabushiki Kaisha | Solar cell module and photovoltaic unit |
| CN101813821A (en) * | 2009-02-25 | 2010-08-25 | 苏州纳米技术与纳米仿生研究所 | Secondary light concentrating/light uniformizing integrated device applied to concentrating photovoltaic module |
| CN102983198A (en) * | 2011-09-06 | 2013-03-20 | 上海久能能源科技发展有限公司 | High-power concentrating solar cell |
| CN103888050A (en) * | 2012-12-20 | 2014-06-25 | 上海久能能源科技发展有限公司 | Power generation and heat supply joint device for concentrator reflection type photovoltaic module |
| CN103311351A (en) * | 2013-06-15 | 2013-09-18 | 刘艳芳 | Concentrating photovoltaic sunlight gathering device |
| CN203747745U (en) * | 2014-01-07 | 2014-07-30 | 武汉凹伟能源科技有限公司 | High light-concentrated solar lighting module group |
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Application publication date: 20160601 |