CN102254962A

CN102254962A - Solar tile-shaped grooved cylindrical light-gathering device

Info

Publication number: CN102254962A
Application number: CN2010102167735A
Authority: CN
Inventors: 王子韩
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-07-01
Filing date: 2010-07-01
Publication date: 2011-11-23

Abstract

The invention discloses a solar tile-shaped grooved cylindrical light-gathering device, which comprises multiple groups of cylindrical Fresnel lenses, a grooved light-gathering funnel and a solar photovoltaic cell, wherein the cylindrical Fresnel lenses are connected together. A circular-arc glass tile is formed on an ultra-white glass plate, and linear stripes are carved on the arch-shaped inner surface of the glass tile to form small prisms of different sizes at unequal intervals, so that incident light rays of the sun become a light focal strip after being refracted and a cylindrical Fresnel lens is formed; once the focal strip is deviated from the cell along with continuous change of the azimuth angle of sunlight, the focal strip falls on a reflecting surface of a lower grooved light-gathering funnel; and after being reflected by the reflecting surface, the focal strip still falls on a solar cell panel at the bottom. A certain included angle is formed between the reflecting surface and the vertical surface of the grooved light-gathering funnel, and a light-gathering focal strip falling on a radiating surface still falls on the photovoltaic cell at the bottom after being reflected by adjusting the included angle, so that the light-gathering effect is achieved.

Description

A kind of solar tile shape slot type cylinder concentrator

Technical field:

The present invention relates to a kind of solar concentrator, be specifically related to a kind of solar tile shape slot type cylinder concentrator.

Background technology:

The energy is the most basic sixty-four dollar question that the mankind need solve when facing economic development and environment maintenance balance.The finite quantity problem that the energy stores impels the mankind to remove to develop, seek, use new alternative energy source.Solar energy is a kind of very abundant clean energy resource, and the annual solar energy total amount of accepting of the earth is 1 * 10 ¹⁸KWh is equivalent to 5 * 10 ¹⁴Bucket crude oil (be verify crude oil reserve nearly thousand times) is world's year more than 10,000 times of the consumption gross energy.Because the most general usually and most convenient use is electric energy, the solar photovoltaic generating technology can directly be converted to electric energy with solar energy, thereby is to have the solar energy of application prospect to utilize mode most.At present, solar photovoltaic generating has been brought into play great role on space technology, becomes the vital power supply of spacecraft, and application on the ground is also more and more extensive.But the cost of photovoltaic generation is too high, also can't compete mutually with the conventional energy resource generating.Therefore reduce the cost of photovoltaic generation,, promote that applying of photovoltaic generation is significant for the competitiveness that improves photovoltaic generation.By improving battery manufacturing process, the raising conversion efficiency of employing new technology, can reduce the cost of photovoltaic generation, but the paces that reduce are slower.Take concentrating method, design rational concentrator, solar cell is operated under the light intensity condition of several times and even hundred times, thereby can reduce the cost of photovoltaic generation greatly, have a good application prospect.But the concentrating photovoltaic power generation technology is also very immature at present, as tracking mode concentrating photovoltaic power generation technology paraboloidal concentrator, the spherical cavity of exempting to follow the tracks of, though the slot-type optical collector of reflecting condensation technology etc. can play certain spotlight effect, but inconvenience is installed, difficult in maintenance and cost is higher, can't large tracts of land promote, thereby limited this broad application, an above difficult problem needs to be resolved hurrily.

Summary of the invention:

In order to overcome the problem that existing solar energy power generating concentrator exists, the invention provides a kind of solar tile shape slot type cylinder concentrator, adopt the cylinder Fresnel Lenses to combine with the slot light collection funnel, set up the mathematical modulo shape of light gathering photovoltaic power generating system, Jiao who makes the cylinder Fresnel Lenses with on the photovoltaic battery panel that directly drops on the bottom or should Jiao with on the reflection wall that drops on bottom slot light collection funnel, after reflective, still make this Jiao with on the photovoltaic battery panel that drops on the bottom, simultaneously, make watt shape that is designed to of this concentrator, thereby solar concentrator is combined with building, realize the perfect combination of solar energy power generating and building structure.

The technical solution adopted for the present invention to solve the technical problems is: solar tile shape slot type cylinder concentrator comprises: the many groups of cylinder Fresnel Lenses that are connected in each other, slot light collection funnel, solar-energy photo-voltaic cell sheet.On a ultra-clear glasses plate, glass thickness of slab 2.8-3.2 millimeter, form the glass slate that several 100 mm wides are equivalent to the quadrant arc, the inner surface of glass slate arch is carved out the linear striped, forming one by one, spacing does not wait, little prism not of uniform size, it is the incident ray of the sun, by accumulating a focal line after the little refraction by prism, several focal lines pool together just becomes a burnt band, form a cylinder Fresnel Lenses, along with the azimuthal continuous variation of sunlight, Jiao who converges by cylindrical lens is with the solar-energy photo-voltaic cell sheet that may depart from the bottom, in case the burnt band of optically focused departs from the battery sheet, then should Jiao's band can drop on the reflective surface of slot light collection funnel of bottom, through after the emission of reflective surface, this Jiao is with on the solar panel that still drops on the bottom.The reflective surface and the vertical plane of slot light collection funnel have certain included angle, by adjusting this corner dimension, guarantee it is burnt being with through after reflective of optically focused of dropping on the emitting surface, still drop on the photovoltaic cell sheet of bottom, reach spotlight effect.

Description of drawings:

The invention will be further described below in conjunction with drawings and Examples;

Fig. 1 is a kind of solar tile shape of the present invention slot type cylinder concentrator structural representation;

Among the figure: 1, the cylinder Fresnel Lenses that connect together of many groups, 2, the optically focused funnel, 3, the solar-energy photo-voltaic cell sheet, 4, the sun, 5, the sunlight incident ray.

Embodiment:

A kind of solar tile shape slot type cylinder concentrator comprises: 1, the cylinder Fresnel Lenses that connect together of many groups, 2, the optically focused funnel, 3, the solar-energy photo-voltaic cell sheet, 4, the sun, 5, the sunlight incident ray.During enforcement, at first make the cylinder Fresnel Lenses 1 that many groups connect together, on a ultra-clear glasses plate, glass thickness of slab 2.8-3.2 millimeter, use axis of rolling calendaring molding method, form the glass slate that several 100-120 mm wides are equivalent to the quadrant arc, the inner surface of glass slate arch is carved out the linear striped, forming one by one, spacing does not wait, little prism not of uniform size, make the solar light 5 that incides cylinder Fresnel Lenses 1, accumulate the burnt band of a light, azimuthal continuous variation along with the sun 4, Jiao who converges by cylinder Fresnel Lenses 1 is with the solar-energy photo-voltaic cell sheet 3 that may depart from the bottom, in case the burnt band of optically focused departs from solar-energy photo-voltaic cell sheet 3, then should Jiao's band can drop on the reflective surface of slot light collection funnel 2 of bottom, through after the reflection of reflective surface, this Jiao is with on the solar-energy photo-voltaic cell sheet 3 that still drops on the bottom.The reflective surface of slot light collection funnel 2 can be plated film aluminium sheet or level crossing, and the upper and lower limit of slot light collection funnel 2 is tightly connected respectively at the backboard of the solar-energy photo-voltaic cell sheet 3 of the glass edge of cylinder Fresnel Lenses 1 and bottom.The reflective surface and the horizontal plane of slot light collection funnel 2 have certain included angle, the size of this angle guarantees to incide burnt being with through after the reflection of optically focused on the reflective surface, be radiated on the solar-energy photo-voltaic cell sheet 3 of slot light collection funnel 2 bottoms, make the sun 4 no matter on which azimuth position, sunlight incident ray 5 through too much organizing the cylinder Fresnel Lenses 1 that connects together is after superrefraction and reflection, and the burnt band of its light that converges all is radiated on the solar-energy photo-voltaic cell sheet 3 of slot light collection funnel 2 bottoms.

Claims

1. a solar tile shape slot type cylinder concentrator comprises: the many groups of cylinder Fresnel Lenses that are connected in each other, the slot light collection funnel, the solar-energy photo-voltaic cell sheet, the reflective surface that it is characterized in that described slot light collection funnel can be plated film aluminium sheet or level crossing, and the upper and lower limit of slot light collection funnel is tightly connected respectively at the backboard of the solar-energy photo-voltaic cell sheet of the glass edge of cylinder Fresnel Lenses and its underpart.

2. a kind of solar tile shape slot type cylinder concentrator according to claim 1, it is characterized in that the described many groups of cylinder Fresnel Lenses that are connected in each other, be on a ultra-clear glasses plate, glass thickness of slab 2.0-3.2 millimeter, form the glass slate that several 100-120 mm wides are equivalent to the quadrant arc, the inner surface of glass slate arch is carved out the linear striped, forming one by one, spacing does not wait, lenslet not of uniform size makes and incides cylinder Fresnel Lenses solar ray collecting and become the burnt band of light.

3. a kind of solar tile shape slot type cylinder concentrator according to claim 1 and 2, the interior arc length 100-120mm chord length 90-105mm that it is characterized in that every section circular arc of described many group cylinder Fresnel Lenses connected to one another, carve 22-32 linear lens altogether with middle symmetry, it is smooth surface that glass curve directly over the cylindrical lens has 30-40mm, and linear lenslet is uniformly distributed in the smooth surface both sides.

4. a kind of solar tile shape slot type cylinder concentrator according to claim 1 is characterized in that the angle of the reflective surface of described slot light collection funnel and horizontal plane is ± 30-75 °.