CN102401990A - Multi-stage sun light collector and light collecting method thereof - Google Patents
Multi-stage sun light collector and light collecting method thereof Download PDFInfo
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- CN102401990A CN102401990A CN2011103971973A CN201110397197A CN102401990A CN 102401990 A CN102401990 A CN 102401990A CN 2011103971973 A CN2011103971973 A CN 2011103971973A CN 201110397197 A CN201110397197 A CN 201110397197A CN 102401990 A CN102401990 A CN 102401990A
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Abstract
The invention discloses a multi-stage sun light collector and a light collecting method thereof. The light collector is composed of a plurality of light collecting devices fixed together; the light collecting device comprises a groove-shaped light collecting bracket and a plurality of light collecting lenses fixed to the opening on the light collecting bracket; a light collecting reflector is disposed corresponding to each light collecting lens at the bottom of the light collecting bracket; light receivers are also disposed at the upper and lower surfaces in the middle of the light collecting bracket; and primary collected light is formed by the light collecting lens such as convex lens, concave reflector and the like, and multiple primary collected light are reflected to the same position by the light collecting reflector to form secondary collected light. The multi-stage sun light collector is simple to make, convenient, easy to assemble and transport, and low in cost, and has relatively low requirements on the sun tracking system; and relatively thin high power light collecting lens can be made.
Description
Technical field
The present invention relates to sun optically focused field, particularly a kind of with the two-stage of optically focused or multistage condenser and concentrating method thereof again behind the sunshine optically focused.
Background technology
It is day by day exhausted to be accompanied by fossil energy, and the ecological disruption and the greenhouse effect that are produced thus are serious day by day, and sun power has become one of main strategic decision of countries in the world sustainable development as pollution-free, reproducible new forms of energy.
But the shortcoming of sun power energy flux density low (about 1kw/ ㎡) becomes one of major obstacle of utilizing sun power.For the energy flux density that improves sun power is low, can adopts the mode of optically focused that sunshine is gathered on the solar cell and generate electricity.To improve photoelectric transformation efficiency and to reduce cost for solar power generation.Therefore, solar concentrating photovoltaic power generation is just obtaining fast development.
Solar concentrating photovoltaic power generation mainly is made up of condenser, absorber, cooling system, tracker four major parts.Wherein, condenser is distinguished according to the optically focused principle, can be divided into reflecting condensation and two big types of refraction optically focused, and they mainly comprise parabolic concentrator, flute profile parabolic condenser, circular cone mirror condenser, spheric reflection condenser, Fresnel transmissive mirror etc.But these condensers are an optically focused (or claiming one-level optically focused) basically, and promptly only there is one in the optically focused convergent point.The ubiquity problem: 1. the high more focal length that causes of light concentrating times is big more, and focal length causes the optically focused opticpath long more more greatly, thereby high more to the solar tracking system accuracy requirement; 2. light concentrating times is high more, requires condenser radius and focal length big more, causes the condenser volume huge more, is not easy to transportation and installation, and simultaneously, big volume also requires bigger more firm strutting system; 3. light concentrating times is high more, and the condenser radius is big more, causes the machining precision of condenser to increase greatly, and then has increased cost.
Summary of the invention
In order to overcome above-mentioned defective, the invention provides a kind of relatively low to the solar tracking system requirement, volume is little, be prone to make, multistage solar condenser cheaply.
The present invention for the technical scheme that solves its technical matters and adopt is: a kind of multistage solar condenser; Said condenser fixedly is made up of several beam condensing units; Said beam condensing unit comprises that optically focused support and several of grooved are fixed in the condenser of optically focused support top opening part; Corresponding each condenser of said optically focused frame bottom is provided with an optically focused reverberator; The middle above and below of optically focused support also is provided with light receiver, utilizes condensers such as convex lens, concave mirror to form optically focused first, then some optically focused is first reflexed to same position again through the optically focused reverberator and forms secondary condensation.
As further improvement of the present invention, said optically focused reverberator comprises the reflection support and axially positioning of rotating is in the directional light converter and the plane mirror that reflect on the support, and said directional light converter is located between condenser and the plane mirror.
As further improvement of the present invention, said directional light converter is convex lens or concavees lens.
As further improvement of the present invention, said optically focused reverberator comprise the reflection support and axially positioning of rotating in the curved reflector that reflects on the support.
As further improvement of the present invention, said curved reflector is concave mirror or convex mirror.
As further improvement of the present invention, said condenser is a condenser, and the middle lower surface of said condenser is provided with one first plane mirror, and the width of said first plane mirror is 1/3 of a condenser width; The corresponding condenser of said optically focused frame bottom center is provided with one second plane mirror, and the width of said second plane mirror is 2/3 of a condenser.
As further improvement of the present invention, said condenser is a condenser, between said condenser and the optically focused reverberator condenser is set also.
As further improvement of the present invention, said condenser is convex lens, Fresnel Lenses or concavees lens.
A kind of multistage solar condenser concentrating method, its step is following:
A, at first sunshine is converged through the some condensers on the beam condensing unit;
B, the sunshine after converging convert directional light into again through the plane reflection mirror reflection or directly reflex in the light receiver through the catoptron (44) in the optically focused reverberator through the directional light converter in the optically focused reverberator;
When C, multistage optically focused, the light that converges in the light receiver is carried out next stage optically focused through the condenser that a plane mirror reflexes in another beam condensing unit again.
The invention has the beneficial effects as follows: key of the present invention is multistage optically focused mode, after being about to a branch of directional light and forming optically focused through condenser, again through the optically focused reflector reflects to same position, form optically focused once more.And two kinds of design forms of optically focused reverberator make a branch of focused ray realize reflexing to assigned address easily.In addition,, increase the method for convex lens or increase plane mirror here, make volume dwindle once again for reducing the thickness of beam condensing unit.Thereby, need not once to make big volume, high precision, the high monofocal condenser that requires of following the trail of.And this condenser repeat the utilization, formed multistage optically focused mode again.And make simple, convenient, be prone to assembling, be prone to transportation, cost is low, solar tracking system require relatively low, can make relatively thin high power concentrator mirror.
Description of drawings
Fig. 1 is beam condensing unit structural representation among the present invention;
Fig. 2 is one of structural drawing of optically focused reverberator of the present invention;
Fig. 3 is two of the structural drawing of optically focused reverberator of the present invention;
Fig. 4 is the optical principle synoptic diagram of optically focused reverberator among Fig. 2;
Fig. 5 is the optical principle synoptic diagram of optically focused reverberator among Fig. 3;
Fig. 6 is the improvement structural representation of beam condensing unit among the present invention;
Fig. 7 is the optical principle synoptic diagram of Fig. 6;
Fig. 8 is the vertical view of structure of the present invention;
Fig. 9 is the optical principle synoptic diagram of the multistage optically focused of the present invention.
Embodiment
In order to deepen to understanding of the present invention, will combine embodiment and accompanying drawing that the present invention is made further detailed description below, this embodiment only is used to explain the present invention, does not constitute the qualification to protection domain of the present invention.
Fig. 1-9 has shown the embodiment of a kind of multistage solar condenser of the present invention: with each condenser 3 of same specification, and like convex lens, Fresnel Lenses; Be installed in each grid of Fig. 8 Deng according to Fig. 8 main structure upward view, Fig. 8 is an example with 9 beam condensing units, can increase or reduce grid quantity according to actual conditions; With adjustment condenser quantity; The light concentrating times that acquisition needs, dotted line is represented some condensers 3 among Fig. 1 and Fig. 6, connects optically focused reverberator 4, light receiver 5 according to Fig. 1 through optically focused support 2.Here if condenser 3 is a collector lens, then Fig. 1 top is over against sunshine, if condenser 3 is the concave surface condenser, then Fig. 1 below is over against sunshine.Wherein optically focused reverberator 4 act as the position that the hot spot that condenser 3 is converged reflexes to light receiver 5, to accomplish the optically focused again of multiply optically focused.
When optically focused reverberator 4 reflexes to light receiver 5 with light, shut out the light each other for avoiding optically focused reverberator 4, can adjust optically focused support distance about in the of 2; Or adjustment optically focused reverberator 4 is for example adjusted the height of plane mirror 43, the relative position of condenser 3 focuses (blocks central point among Fig. 8) with respect to the Plane Angle of light receiver 5 or the distribution of vertical angle; Or directly optically focused support 2 is fixed in toward moving down in light receiver 5 positions.
Here optically focused reverberator 4 has two kinds of structures.
Fig. 2 is an optically focused reflector structure one, and reflection support 41 fixed pan catoptrons 43, reflection support 41 are fixing directional light converter 42 simultaneously, and is fixed in together on the optically focused support 2.Directional light converter 42 act as the light that condenser 3 is converged and converts directional light to, and directional light converter 42 has two kinds of implementations here.Mode one: the directional light converter is concavees lens; Like Fig. 4,3 parallel and concentricity in concavees lens and condenser, focus are overlapped, then directional light converges through condenser 3; To be converted into directional light through concavees lens again, after plane mirror 43 can reflex to light receiver 5; Mode two, the directional light converter is convex lens, changes concavees lens into convex lens, gets final product but the distance of condenser 3 and convex lens is adjusted into both focal length sums.Here the magnitude relationship of lens and condenser 3 is: f
1/ f
2=r
1/ r
2, f wherein
1, f
2Be respectively the focal length of condenser 3 and lens, r
1, r
2Be respectively the radius of condenser 3 and lens, therefore, through adjusting this four parameters, may command output directional light spot size.
Fig. 3 is an optically focused reflector structure two.Reflection support 41 fixedly is fixed on the optically focused support 2 behind the curved reflector 44 together.Curved reflector 44 act as the position that the light that condenser 3 is converged reflexes to light receiver 5.Here curved reflector also has two kinds of implementations.Mode one: the light that converges of condenser 3 is reflexed to light receiver 5 with convex mirror; Mode two changes convex mirror into concave mirror, and is placed on condenser 3 focuses below, also can the light that converge of condenser 3 be reflexed to light receiver 5.
For the ease of the adjustment of above mirror reflects direction, the 41 rotatable adjustment of reflection support can be set, converge in the position of light receiver 5 once more to guarantee multi beam optically focused hot spot.
For reducing the integral thickness of condenser, two kinds of measures are arranged here.One of which: the design overall construction design is Fig. 6; But this embodiment only limits to condenser 3 is collector lens; Relative Fig. 1; Two plane mirrors of increasing are arranged here, and first plane mirror 6 is fixed in the collector lens middle position, and second plane mirror 7 is fixed in optically focused support 2 (second plane mirror 7 needs central with holes).Detail location relation is referring to first plane mirror 6 among Fig. 7 and second plane mirror 7, and wherein first plane mirror 6 is the CD section, be of a size of collector lens the AB size 1/3, and it is central to be positioned at the AB section.Second plane mirror 7 is of a size of 2/3 of collector lens AB size.The parallel distance of first plane mirror and second plane mirror is the focal length of 1/3 (or 1/5,1/7) collector lens, and optically focused reverberator 4 its structures are the same.Its two: between condenser 3 and optically focused reverberator 4, place a condenser 3 again, converge focus to shorten light, the method also only limits to condenser 3 and is collector lens.
The method of above secondary optically focused also can repeat to obtain the method for multistage optically focused; Like Fig. 9; A plurality of optically focused reflection units (this sentences two signals) are reflected into one directional light with the directional light that converges through a plurality of plane mirrors again; And then, can form multistage optically focused so repeatedly with optically focused reflection unit completion optically focused and reflection directional light.But along with the increase of optically focused intensity, the optically focused reflection unit needs good high temperature resistant property and machining precision.
See that from above optically focused route its optically focused opticpath is far below the monomer condenser of equal light concentrating times, thereby the precision of solar tracking is also reduced relatively.
Claims (9)
1. multistage solar condenser; Said condenser fixedly is made up of several beam condensing units (1); It is characterized in that: said beam condensing unit (1) comprises that optically focused support (2) and several of grooved are fixed in the condenser (3) of optically focused support (2) top opening part; Said optically focused support (2) corresponding each condenser in bottom (3) is provided with an optically focused reverberator (4), and the middle above and below of said optically focused support (2) also is provided with light receiver (5).
2. multistage solar condenser according to claim 1; It is characterized in that: said optically focused reverberator (4) comprises reflection support (41) and axially positioning of rotating is in the directional light converter (42) and the plane mirror (43) that reflect on the support, and said directional light converter (42) is located between condenser (3) and the plane mirror (43).
3. multistage solar condenser according to claim 2 is characterized in that: said directional light converter (42) is convex lens or concavees lens.
4. multistage solar condenser according to claim 1 is characterized in that: said optically focused reverberator (4) comprise reflection support (41) and axially positioning of rotating in the curved reflector (44) that reflects on the support.
5. multistage solar condenser according to claim 4 is characterized in that: said curved reflector (44) is concave mirror or convex mirror.
6. multistage solar condenser according to claim 1; It is characterized in that: said condenser (3) is a collector lens; The middle lower surface of said condenser (3) is provided with one first plane mirror (6), and the width of said first plane mirror (6) is 1/3 of condenser (a 3) width; Corresponding condenser (3) center, said optically focused support (2) bottom is provided with one second plane mirror (7), and the width of said second plane mirror (7) is 2/3 of a condenser (3).
7. multistage solar condenser according to claim 1 is characterized in that: said condenser (3) is a collector lens, between said condenser (3) and the optically focused reverberator (4) condenser (3) is set also.
8. multistage solar condenser according to claim 1 is characterized in that: said condenser (3) is convex lens, Fresnel Lenses, concavees lens or concave surface condenser.
9. one kind according to the described multistage solar condenser concentrating method of claim 1-8, and its step is following:
A, at first sunshine is converged through the some condensers (3) on the beam condensing unit (1);
B, the sunshine after converging convert directional light into through the directional light converter (42) in the optically focused reverberator (4) and pass through plane mirror (43) reflection again or directly reflex in the light receiver (5) through the catoptron (44) in the optically focused reverberator;
When C, multistage optically focused, the light that converges in the light receiver (5) is carried out next stage optically focused through the condenser (3) that a plane mirror reflexes in another beam condensing unit (1) again.
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| CN2011103971973A CN102401990A (en) | 2011-12-05 | 2011-12-05 | Multi-stage sun light collector and light collecting method thereof |
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| CN2011103971973A CN102401990A (en) | 2011-12-05 | 2011-12-05 | Multi-stage sun light collector and light collecting method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103064030A (en) * | 2012-12-21 | 2013-04-24 | 杨军 | System and method for battery light converging testing and sample platform for battery light converging testing |
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| CN101614860A (en) * | 2008-06-16 | 2009-12-30 | 拉姆菲斯股份有限公司 | The device of assembling sunshine |
| CN101750795A (en) * | 2008-12-12 | 2010-06-23 | 比亚迪股份有限公司 | Fully transparent liquid crystal display module |
| CN102155358A (en) * | 2010-12-30 | 2011-08-17 | 张文迅 | Light-gathering wind and light complementary power station with automatic sun tracking function and maximum power point tracking function |
| CN102252441A (en) * | 2011-05-31 | 2011-11-23 | 中海阳新能源电力股份有限公司 | Heat collecting system for high-order focusing integrated light |
| CN202330852U (en) * | 2011-12-05 | 2012-07-11 | 何春燕 | Multistage sun condenser |
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2011
- 2011-12-05 CN CN2011103971973A patent/CN102401990A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101614860A (en) * | 2008-06-16 | 2009-12-30 | 拉姆菲斯股份有限公司 | The device of assembling sunshine |
| CN101750795A (en) * | 2008-12-12 | 2010-06-23 | 比亚迪股份有限公司 | Fully transparent liquid crystal display module |
| CN102155358A (en) * | 2010-12-30 | 2011-08-17 | 张文迅 | Light-gathering wind and light complementary power station with automatic sun tracking function and maximum power point tracking function |
| CN102252441A (en) * | 2011-05-31 | 2011-11-23 | 中海阳新能源电力股份有限公司 | Heat collecting system for high-order focusing integrated light |
| CN202330852U (en) * | 2011-12-05 | 2012-07-11 | 何春燕 | Multistage sun condenser |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103064030A (en) * | 2012-12-21 | 2013-04-24 | 杨军 | System and method for battery light converging testing and sample platform for battery light converging testing |
| CN103064030B (en) * | 2012-12-21 | 2015-05-27 | 杨军 | System and method for battery light converging testing and sample platform for battery light converging testing |
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Application publication date: 20120404 |