CN204758910U - Improved structure of concentrating photovoltaic secondary condenser - Google Patents
Improved structure of concentrating photovoltaic secondary condenser Download PDFInfo
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- CN204758910U CN204758910U CN201520383440.XU CN201520383440U CN204758910U CN 204758910 U CN204758910 U CN 204758910U CN 201520383440 U CN201520383440 U CN 201520383440U CN 204758910 U CN204758910 U CN 204758910U
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- 230000005494 condensation Effects 0.000 claims abstract description 48
- 238000009833 condensation Methods 0.000 claims abstract description 48
- 230000011514 reflex Effects 0.000 claims description 2
- 239000000463 material Substances 0.000 description 8
- 239000011521 glass Substances 0.000 description 5
- 238000013082 photovoltaic technology Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
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Abstract
The utility model discloses an improved structure of a concentrating photovoltaic secondary condenser, which comprises a secondary condenser body, wherein the secondary condenser body is provided with an upper surface, a lower surface and four same side surfaces, wherein the upper surface is a spherical curved surface and is a light incidence surface for secondary concentration; the lower surface is a square plane and is a light emergent surface for secondary condensation; the side surface is a sector surface and is a reflecting plane for secondary light condensation; the connecting line of the highest point of the center of the spherical curved surface and the center of the lower surface is vertical to the lower surface, the tangent plane at the highest point of the center of the spherical curved surface is parallel to the lower surface, four vertexes of the spherical curved surface are on the same plane, the plane formed by the four vertexes is parallel to the lower surface, and the size of the plane is larger than that of the lower surface; the lower surface is bonded to the solar cell, is shaped to fit the solar cell, and has a size smaller than the effective light receiving area of the solar cell. The utility model has the advantages of small volume, light weight, fast assembly, low cost, superior performance and the like.
Description
Technical field
The utility model relates to the technical field of solar energy power generating, refers in particular to a kind of structure-improved of condensation photovoltaic secondary condensation mirror.
Background technology
Along with the continuous aggravation of the day by day exhausted of traditional energy and environmental pollution, developing reproducible clean energy resource has become the common issue that the whole world faces.In various forms of new energy development, the photovoltaic technology utilizing sun power to generate electricity gets most of the attention, but photovoltaic generation is very low as the ingredient proportion of whole society energy structure, causes the main cause of this situation to be that the cost of photovoltaic generation is too high.So reducing cost of electricity-generating is the top priority that current photovoltaic technology faces, one of effective way adopts concentrator solar cell, carrys out part replace expensive solar cell, so-called light-focusing type photovoltaic technology that Here it is by comparatively cheap Fresnel lens concentrator.
The high power concentrating photovoltaic module of light-focusing type photovoltaic technology is adopted all to need to be equipped with high-precision dual-axis tracking system.But the tracking error due to dual-axis tracking system can reduce the luminous energy that concentrating solar battery receives greatly.Meanwhile, because the hot spot-effect of Fresnel lens high power focal beam spot, concentrating solar battery are to the restriction of the dependence of spot intensity distributing homogeneity and system installation accuracy, the conversion efficiency of high power light concentrating photovoltaic system can be very limited.Based on the hot spot effect of Fresnel lens focus hot spot in current condensation photovoltaic technology, focal beam spot is difficult to converge on the effective area of shining light of solar cell completely, therefore need to increase secondary condensation element, due to the complex structure of some current secondary condensation original papers, spotlight effect is limited, process and be equipped with certain difficulty, therefore improving particularly important to the design of secondary condensation mirror.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, provide a kind of rational in infrastructure reliable, assembling is fast, cost is low, the structure-improved of the condensation photovoltaic secondary condensation mirror of superior performance.
For achieving the above object, technical scheme provided by the utility model is: a kind of structure-improved of condensation photovoltaic secondary condensation mirror, include the secondary condensation mirror body be located between a condenser Fresnel Lenses and solar cell, described secondary condensation mirror body is provided with upper surface, lower surface and four identical sides, wherein, described upper surface is ball curved surface, is the plane of light incidence of secondary condensation; Described lower surface is square-shaped planar, is the beam projecting face of secondary condensation; Described side is sector, is the plane of reflection of secondary condensation, and the end of this sector is the limit of square-shaped planar; The line at described ball center of surface peak and lower surface center is perpendicular to lower surface, and the section at this ball center of surface peak place is parallel with lower surface, four summits of this ball curved surface are in same plane, and the plane be made up of these four summits is parallel to lower surface, its size is greater than lower surface; Described lower surface is bonded on solar cell, its shape and solar cell suitable, its size is less than the effective area of shining light of solar cell; The light part entering upper surface directly focuses on lower surface by ball curved surface, and a part to be mapped on four sides by four offside reflections to lower surface, then enters on effective sensitive surface of solar cell.
The angle of described side and lower surface is greater than 100 °, is less than 160 °.
The light area of described upper surface is greater than the beam projecting area of lower surface.
Described upper surface, lower surface, side maintain flatness.
The material of described secondary condensation mirror body is glass material, or with glass refraction, material that transmitance is identical.
Compared with prior art, tool has the following advantages and beneficial effect the utility model:
1, volume of the present utility model is little, lightweight, structure simple, is convenient to processing like this, can reduces costs;
2, upper surface of the present utility model is ball curved surface, serves the effect of secondary condensation better.
3, the utility model directly bonds on solar cell, can realize robotization batch and install;
4, beam projecting face of the present utility model is dimensioned slightly smaller than the effective area of shining light of solar cell, like this while all converged light of guarantee gather solar cell effective area of shining light, can realize industrial automated production in enormous quantities;
5, material of the present utility model is glass or approximate material, and stability and environmental suitability are all better, thus ensures that solar cell works for a long time efficiently;
6, the utility model assembling is fast, enforcement is easy, production cost is lower, and be suitable for commercial production in enormous quantities, applied range, market outlook are good.
Accompanying drawing explanation
Fig. 1 is one of stereographic map of the present utility model.
Fig. 2 is stereographic map two of the present utility model.
Fig. 3 is stereographic map three of the present utility model.
Fig. 4 is front view of the present utility model.
Fig. 5 is vertical view of the present utility model.
Fig. 6 is upward view of the present utility model.
Embodiment
Below in conjunction with specific embodiment, the utility model is described in further detail.
As shown in Figures 1 to 6, the structure-improved of the condensation photovoltaic secondary condensation mirror described in the present embodiment, include the secondary condensation mirror body be located between a condenser Fresnel Lenses and solar cell, the material of this secondary condensation mirror body is glass material, or with glass refraction, material that transmitance is identical, stability and environmental suitability are all better, thus ensure that solar cell works for a long time efficiently; Wherein, described secondary condensation mirror body is provided with upper surface 1, lower surface 2 and four identical sides 3, and each surface must maintain certain flatness; Described upper surface 1 is ball curved surface, is the plane of light incidence of secondary condensation, can serves the effect of secondary condensation better; Described lower surface 2 is square-shaped planar, is the beam projecting face of secondary condensation; Described side 3 is sector, is the plane of reflection of secondary condensation, and the end of this sector is the limit of square-shaped planar; The line at described ball center of surface peak and lower surface center is perpendicular to lower surface, and the section at this ball center of surface peak place is parallel with lower surface, four summits of this ball curved surface are in same plane, and the plane be made up of these four summits is parallel to lower surface, its size is greater than lower surface; Described lower surface 2 is directly bonded on solar cell, and the shape of its shape and solar cell is suitable, and it is dimensioned slightly smaller than the effective area of shining light of solar cell; In addition, described side 3 is greater than 100 ° with the angle of lower surface 2, is less than 160 °; The light area of described upper surface 1 is greater than the beam projecting area of lower surface 2.
During work, the light part entering upper surface 1 directly focuses on lower surface 2 by ball curved surface, and a part is mapped on four sides 3 and reflexes to lower surface 2 by four sides 3, then enters on effective sensitive surface of solar cell.Beam projecting face is dimensioned slightly smaller than the effective area of shining light of solar cell, ensure that all converged light can gather on effective sensitive surface of solar cell.
In sum, after the above scheme of employing, not only volume is little, lightweight for secondary condensation mirror described in the utility model, fixed form is simple, and robotization can be realized under all converged light are gathered in the prerequisite of solar cell effective area of shining light and install in enormous quantities, and solve the adaptability of condensation photovoltaic to environment temperature, thus ensure that solar cell works for a long time efficiently.In a word, the high-level efficiency of solar cell and the realization of industrialization ensure that and be worthy to be popularized the market outlook that this concentration photovoltaic receiver is wide.
The examples of implementation of the above are only the preferred embodiment of the utility model, not limit practical range of the present utility model with this, therefore the change that all shapes according to the utility model, principle are done, all should be encompassed in protection domain of the present utility model.
Claims (5)
1. the structure-improved of a condensation photovoltaic secondary condensation mirror, include the secondary condensation mirror body be located between a condenser Fresnel Lenses and solar cell, it is characterized in that: described secondary condensation mirror body is provided with upper surface (1), lower surface (2) and four identical sides (3), wherein, described upper surface (1) is ball curved surface, is the plane of light incidence of secondary condensation; Described lower surface (2) is square-shaped planar, is the beam projecting face of secondary condensation; Described side (3) is sector, is the plane of reflection of secondary condensation, and the end of this sector is the limit of square-shaped planar; The line at described ball center of surface peak and lower surface center is perpendicular to lower surface, and the section at this ball center of surface peak place is parallel with lower surface, four summits of this ball curved surface are in same plane, and the plane be made up of these four summits is parallel to lower surface, its size is greater than lower surface; Described lower surface (2) is bonded on solar cell, its shape and solar cell suitable, its size is less than the effective area of shining light of solar cell; The light part entering upper surface (1) directly focuses on lower surface (2) by ball curved surface, a part is mapped on four sides (3) and reflexes to lower surface (2) by four sides (3), then enters on effective sensitive surface of solar cell.
2. the structure-improved of a kind of condensation photovoltaic secondary condensation mirror according to claim 1, is characterized in that: described side (3) are greater than 100 ° with the angle of lower surface (2), are less than 160 °.
3. the structure-improved of a kind of condensation photovoltaic secondary condensation mirror according to claim 1, is characterized in that: the light area of described upper surface (1) is greater than the beam projecting area of lower surface (2).
4. the structure-improved of a kind of condensation photovoltaic secondary condensation mirror according to claim 1, is characterized in that: described upper surface (1), lower surface (2), side (3) maintain flatness.
5. the structure-improved of a kind of condensation photovoltaic secondary condensation mirror according to claim 1, is characterized in that: the refractive index of described secondary condensation mirror body and transmitance and glassy phase with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520383440.XU CN204758910U (en) | 2015-06-05 | 2015-06-05 | Improved structure of concentrating photovoltaic secondary condenser |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520383440.XU CN204758910U (en) | 2015-06-05 | 2015-06-05 | Improved structure of concentrating photovoltaic secondary condenser |
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| Publication Number | Publication Date |
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| CN204758910U true CN204758910U (en) | 2015-11-11 |
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| CN201520383440.XU Active CN204758910U (en) | 2015-06-05 | 2015-06-05 | Improved structure of concentrating photovoltaic secondary condenser |
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- 2015-06-05 CN CN201520383440.XU patent/CN204758910U/en active Active
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