CN102790555B - Solar power generation device - Google Patents
Solar power generation device Download PDFInfo
- Publication number
- CN102790555B CN102790555B CN201210279384.6A CN201210279384A CN102790555B CN 102790555 B CN102790555 B CN 102790555B CN 201210279384 A CN201210279384 A CN 201210279384A CN 102790555 B CN102790555 B CN 102790555B
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- CN
- China
- Prior art keywords
- light reflection
- reflection mirror
- solar cell
- light reflector
- described light
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000010248 power generation Methods 0.000 title abstract description 5
- 241000700608 Sagitta Species 0.000 claims description 7
- 238000000465 moulding Methods 0.000 claims description 3
- 230000002035 prolonged effect Effects 0.000 abstract 2
- 239000011521 glass Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000006854 communication Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000002310 reflectometry Methods 0.000 description 1
- 230000011514 reflex Effects 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
Classifications
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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
Landscapes
- Photovoltaic Devices (AREA)
- Optical Elements Other Than Lenses (AREA)
Abstract
The invention discloses a solar power generation device, which comprises a light reflector and a solar cell; the light reflector is shaped like a paraboloid of revolution, the paraboloid of revolution abides by a formula (y equal to x2/4f), wherein f is the focus of the paraboloid of revolution, and the light reflector consists of one to six reflecting surfaces; and the solar cell is arranged at the position of the focus of the light reflector. Since the light reflector is shaped like the paraboloid of revolution and consists of one to six reflecting surfaces, the connecting gaps between the small reflecting surfaces are reduced, the diameter of the condensed light spot at the focus is less than 5mm, the sunlight utilization efficiency of the solar power generation device is greatly increased, and meanwhile, the service life of the light reflector is greatly prolonged. Since the solar cell is arranged at the position of the focus of the light reflector, light is reflected only once; meanwhile, since the weather fastness of the light reflector is greatly enhanced and the service life of the light reflector is greatly prolonged, the light reflector can be exposed in the outside environment, and thereby the energy utilization efficiency of the solar power generation device is increased.
Description
Technical field
The present invention relates to field of solar thermal power generation, particularly relate to a kind of device of solar generating.
Background technology
In prior art, the manufacturing process of light reflection mirror utilizes manually to be pasted onto on parabola matrix by the mirror surface of fritter.Enough little for ensureing focus place optically focused hot spot, hot spot is made to project on solar cell completely, the area of mirror surface is sufficiently little, and the area of current mirror surface is substantially at 1 square centimeter, and this just makes the course of processing of whole light reflection mirror expending time in and manpower very.Further, the weatherability of the light reflection mirror of said method formation is also poor.Through using for a long time, dust must be accumulated in the gap between fritter mirror surface, and the silver coating at minute surface back is vulnerable to the erosion of rainwater dust storm and comes off, and affect the spotlight effect of light reflection mirror, and useful life is short.
Summary of the invention
For above-mentioned technical problem, the invention provides a kind of device of solar generating.The light reflection mirror of device of solar generating of the present invention is the shape of the paraboloid of revolution, it is consisted of 1 ~ 6 mirror surface, considerably reduce the splicing gap in prior art between fritter mirror surface, focus place optically focused spot diameter is less than 5mm, the utilization ratio of device of solar generating to sunlight is improved greatly, meanwhile, also make greatly extend the useful life of light reflection mirror.
Technical scheme provided by the invention is:
A kind of device of solar generating, comprising:
Light reflection mirror, it is the shape of the paraboloid of revolution, and the described paraboloid of revolution follows formula y=x
2/ 4f, wherein, f is the focal length of the paraboloid of revolution, and described light reflection mirror is for be made up of 1 ~ 6 mirror surface;
Solar cell, it is arranged at the position of the focus of described light reflection mirror.
Preferably, in described device of solar generating, described light reflection mirror is be made up of the mirror surface of an integral one-step molding.
Preferably, in described device of solar generating, the ratio of the area of described light reflection mirror and the area of described solar cell is less than or equal to 1000.
Preferably, in described device of solar generating, described solar cell is multiple solar cell.
Preferably, in described device of solar generating, the ratio of the area of described light reflection mirror and the area of described solar cell is 500 ~ 800.
Preferably, in described device of solar generating, the area of described light reflection mirror is 0.36 ~ 15 square metre.
Preferably, in described device of solar generating, the sagitta of described light reflection mirror is 3 ~ 7 centimetres.
Preferably, in described device of solar generating, the focal length of described light reflection mirror is 90 ~ 120 centimetres.
Preferably, in described device of solar generating, the rounded or regular polygon of the projection of described light reflection mirror.
Preferably, in described device of solar generating, when the projection of described light reflection mirror is rounded, the diameter of the projection of described light reflection mirror is 60 ~ 90 centimetres, or the projection of described light reflection mirror is in square, and the length of side of the projection of described light reflection mirror is 60 ~ 90 centimetres.
Device of solar generating of the present invention has following beneficial effect:
(1) light reflection mirror of device of solar generating of the present invention is the shape of the paraboloid of revolution, it is consisted of 1 ~ 6 mirror surface, decrease the splicing gap in prior art between fritter mirror surface, focus place optically focused spot diameter is less than 5mm, the utilization ratio of device of solar generating to sunlight is improved greatly, and reflectivity is greater than 92%, simultaneously, also make greatly extend the useful life of light reflection mirror, not broken under the sandstone strike that typhoon sweeps.
(2) device of solar generating is that solar cell and light reflection mirror are contained in the same side at present, in the position of the focus of light reflection mirror, lens are housed, then the communication process of light is, light is through the collection of light reflection mirror and reflection, arrive the position of lens, again via lens, be reflected onto on the solar cell that is positioned on rear side of light reflection mirror, carry out power conversion by solar cell.In above-mentioned communication process, sunlight needs through two secondary reflections, and reflection each time all can lose the energy of 8 ~ 12%.Meanwhile, above-mentioned light reflection mirror, lens and solar cell are arranged in the casing of an aluminium alloy, and casing is provided with clear glass, sunlight is transmitted through after clear glass, collected by light reflection mirror again, light from clear glass through process, also can produce certain energy loss.Therefore, device of solar generating of the prior art wastes considerable energy.Solar cell is arranged on the focal position of light reflection mirror by the present invention, and light is merely through primary event; Simultaneously because light reflection mirror is made up of 1 ~ 6 mirror surface, its weatherability and useful life are greatly improved, and therefore light reflection mirror can be exposed in external environment condition, invention increases the efficiency of energy utilization of device of solar generating.
Accompanying drawing explanation
Fig. 1 is the structural representation of an embodiment of device of solar generating of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail, can implement according to this with reference to specification word to make those skilled in the art.
As shown in Figure 1, the invention provides a kind of device of solar generating, comprising: light reflection mirror 1, it is the shape of the paraboloid of revolution, and the described paraboloid of revolution follows formula y=x
2/ 4f, wherein, f is the focal length of the paraboloid of revolution, and described light reflection mirror is for be made up of 1 ~ 6 mirror surface; Solar cell 2, it is arranged at the position of the focus of described light reflection mirror.
In described device of solar generating, described light reflection mirror is be made up of the mirror surface of an integral one-step molding.
In described device of solar generating, the ratio of the area of described light reflection mirror and the area of described solar cell is less than or equal to 1000.
In described device of solar generating, described solar cell is multiple solar cell.
In described device of solar generating, the ratio of the area of described light reflection mirror and the area of described solar cell is 500 ~ 800.
In described device of solar generating, the area of described light reflection mirror is 0.36 ~ 15 square metre.
In described device of solar generating, the sagitta of described light reflection mirror is 3 ~ 7 centimetres.
In described device of solar generating, the focal length of described light reflection mirror is 90 ~ 120 centimetres.
In described device of solar generating, the rounded or regular polygon of the projection of described light reflection mirror.
In described device of solar generating, when the projection of described light reflection mirror is rounded, the diameter of the projection of described light reflection mirror is 60 ~ 90 centimetres, or the projection of described light reflection mirror is in square, and the length of side of the projection of described light reflection mirror is 60 ~ 90 centimetres.
Light reflection mirror of the present invention is the shape of the paraboloid of revolution, and when solar cell is arranged on the focal position of light reflection mirror, sunlight, through the collection of light reflection mirror and reflection, is directly received by solar cell and changes.
Light reflection mirror is made up of 1 ~ 6 mirror surface, namely light reflection mirror can be made up of an integrated mirror surface, also can be spliced by 2 ~ 6 mirror surfaces, for the latter, several mirror surface can be onesize mirror surface.
Be limited to the photoelectric conversion efficiency of solar cell, the ratio of the area of light reflection mirror and the area of solar cell is less than or equal to 1000.When the scope of above-mentioned ratio 500 ~ 800, solar cell is better for the utilization ratio of sunlight.
Solar cell can be a solar cell, and also can be that several pieces of solar cells work simultaneously, this depends in specific implementation process, the ratio of the area of the area of light reflection mirror and the area of light reflection mirror and solar cell.
According to the needs that electric power exports, the preferred scope of area of light reflection mirror is 0.36 ~ 15 square metre.
The sagitta of light reflection mirror is 3 ~ 7 centimetres.When light reflection mirror carries out reflex time to sunlight, the closer to the position of the centre of light reflection mirror, reflection ray is more close to directional light, the closer to the marginal position of light reflection mirror, reflection ray is then more not parallel, is more not easy to be received by solar cell, when sagitta is excessive, degree then near the reflection ray parallel deviate state of the marginal position of light reflection mirror is more serious, poorer to the utilization of sunlight.Therefore, the sagitta of suitable light reflection mirror can ensure that device of solar generating has good efficiency of energy utilization.Sagitta refers to the distance between parabolical summit to secant, and above-mentioned parabola is the parabola formed when the central axis of light reflection mirror does longitudinal cross-section.
The focal length of light reflection mirror is preferably at 90 ~ 120 centimetres.
The projection of light reflection mirror can be circular or regular polygon.For the light reflection mirror of circle, the diameter of its projection is 60 ~ 90 centimetres; For foursquare light reflection mirror, the length of side of its projection is then 60 ~ 90 centimetres.
Light reflection mirror of the present invention comprises glassy layer and the coat of metal, and the coat of metal is the silvering that thickness is greater than 150nm.
Although embodiment of the present invention are open as above, but it is not restricted to listed in specification and execution mode utilization, it can be applied to various applicable the field of the invention completely, for those skilled in the art, can easily realize other amendment, therefore do not deviating under the universal that claim and equivalency range limit, the present invention is not limited to specific details and illustrates here and the legend described.
Claims (4)
1. a device of solar generating, is characterized in that, comprising:
Light reflection mirror, it is the shape of the paraboloid of revolution, and the described paraboloid of revolution follows formula y=x
2/ 4f, wherein, f is the focal length of the paraboloid of revolution, and described light reflection mirror is be made up of the mirror surface of an integral one-step molding; The area of described light reflection mirror is 0.36 ~ 15 square metre; The sagitta of described light reflection mirror is 3 ~ 7 centimetres; The focal length of described light reflection mirror is 90 ~ 120 centimetres;
Solar cell, it is arranged at the position of the focus of described light reflection mirror;
Wherein, the ratio of the area of described light reflection mirror and the area of described solar cell is 500 ~ 800.
2. device of solar generating as claimed in claim 1, it is characterized in that, described solar cell is multiple solar cell.
3. device of solar generating as claimed in claim 1, is characterized in that, the rounded or regular polygon of the projection of described light reflection mirror.
4. device of solar generating as claimed in claim 3, it is characterized in that, when the projection of described light reflection mirror is rounded, the diameter of the projection of described light reflection mirror is 60 ~ 90 centimetres, or the projection of described light reflection mirror is in square, and the length of side of the projection of described light reflection mirror is 60 ~ 90 centimetres.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210279384.6A CN102790555B (en) | 2012-08-07 | 2012-08-07 | Solar power generation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210279384.6A CN102790555B (en) | 2012-08-07 | 2012-08-07 | Solar power generation device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102790555A CN102790555A (en) | 2012-11-21 |
| CN102790555B true CN102790555B (en) | 2015-06-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210279384.6A Active CN102790555B (en) | 2012-08-07 | 2012-08-07 | Solar power generation device |
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| CN (1) | CN102790555B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104917444B (en) * | 2014-03-10 | 2018-08-28 | 容云 | Quasi- slot type point Photospot solar utilizes device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1313490A (en) * | 2001-04-09 | 2001-09-19 | 周文君 | Multifunctional light-gathering mixer using solar energy in full spectrum |
| JP2002081760A (en) * | 2000-09-08 | 2002-03-22 | Mitsui Eng & Shipbuild Co Ltd | Solar energy utilizing system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101256276B (en) * | 2008-04-03 | 2010-06-30 | 华中科技大学 | Laser beam focusing integral form paraboloidal mirror |
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2012
- 2012-08-07 CN CN201210279384.6A patent/CN102790555B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002081760A (en) * | 2000-09-08 | 2002-03-22 | Mitsui Eng & Shipbuild Co Ltd | Solar energy utilizing system |
| CN1313490A (en) * | 2001-04-09 | 2001-09-19 | 周文君 | Multifunctional light-gathering mixer using solar energy in full spectrum |
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| Publication number | Publication date |
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| CN102790555A (en) | 2012-11-21 |
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Effective date of registration: 20160105 Address after: 245400 Anhui province Huangshan City Xiuning County town of Haiyang Xin'an road Shanglin Jiayuan 1 room 19 Patentee after: HUANGSHAN RUIJI NEW ENERGY TECHNOLOGY CO., LTD. Address before: 102211 1000 meters south of Xiaotangshan Changping District Aviation Museum, Beijing, China Patentee before: Li Zijing |
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Address after: 245400 Anhui province Huangshan City Xiuning County town of Haiyang Xin'an road Shanglin Jiayuan 1 room 19 Patentee after: Mount Huangshan Rui Xin energy Limited by Share Ltd Address before: 245400 Anhui province Huangshan City Xiuning County town of Haiyang Xin'an road Shanglin Jiayuan 1 room 19 Patentee before: HUANGSHAN RUIJI NEW ENERGY TECHNOLOGY CO., LTD. |
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Effective date of registration: 20191021 Granted publication date: 20150624 |
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Effective date of registration: 20220317 Address after: 334000 room 701, unit 2, building 11, No. 55, Wusan Avenue, Xinzhou District, Shangrao City, Jiangxi Province Patentee after: Jiang Dahe Address before: 245400 room 19, building 1, Shanglin Jiayuan, Xin'an Road, Haiyang Town, Xiuning County, Huangshan City, Anhui Province Patentee before: HUANGSHAN RUNSOL NEW ENERGY CO.,LTD. |
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Effective date of registration: 20220407 Address after: 215300 floor 5, building B9, No. 15, Jinyang Road, Huaqiao Town, Kunshan City, Suzhou City, Jiangsu Province Patentee after: Jiangsu ruizhizhong New Energy Technology Co.,Ltd. Address before: 334000 room 701, unit 2, building 11, No. 55, Wusan Avenue, Xinzhou District, Shangrao City, Jiangxi Province Patentee before: Jiang Dahe |
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