CN202434553U - Flat-top total-reflection type secondary light concentrating and homogenizing integrated device - Google Patents
Flat-top total-reflection type secondary light concentrating and homogenizing integrated device Download PDFInfo
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- CN202434553U CN202434553U CN201120569315XU CN201120569315U CN202434553U CN 202434553 U CN202434553 U CN 202434553U CN 201120569315X U CN201120569315X U CN 201120569315XU CN 201120569315 U CN201120569315 U CN 201120569315U CN 202434553 U CN202434553 U CN 202434553U
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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
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Abstract
The utility model relates to a flat-top total-reflection type secondary light concentrating and homogenizing integrated device. The upper bottom of the integrated device directly faces a light source, and the lower bottom is connected with a solar battery. The integrated device is characterized in that the integrated device is a piece of solid glass; both the upper bottom and the lower bottom are a light refraction surface; the upper bottom is larger than the lower bottom in area; and the sidewall of the integrated device is plated with a total reflection film to form a total-reflection wall capable of non-destructively reflecting beams by the sidewalls in the integrated device. According to the utility model, the integrated device not only can further improve the total concentrating ratio of a concentrating photovoltaic system, but also can improve the uniformity of spot intensity on the solar battery, thereby improving the conversion efficiency of the solar battery. The integrated device provided by the utility model is simple in structure, convenient in operation, practical in use, and so on.
Description
Technical field
The utility model relates to a kind of flat-top total-reflection type secondary condensation/dodging device, mainly is used in the high power concentrator photovoltaic module, realizes to carrying out the effect of secondary condensation and even light through the light beam behind optically focused.
Background technology
Along with the exhaustion day by day of traditional energy and the aggravation of environmental pollution, solar energy has become a kind of new forms of energy of great exploitation potential for its.In field of solar energy utilization; Solar photovoltaic technology is that the solar energy that has application prospect most utilizes mode; Solar photovoltaic technology has become try to be the first one of important topic of research of countries in the world at present; And the emphasis of research is the photoelectric conversion efficiency that how to improve solar cell, and the cost that how to reduce photovoltaic generation.Present most widely used solution is introduced concentrator exactly in solar energy photovoltaic system, promptly take concentration photovoltaic system to realize the technology of photovoltaic generation.The concentrator of current widespread usage mainly contains two kinds: a kind of is reflection-type beam condenser, and a kind of is the transmission-type concentrator.With the Fresnel lens be the transmission-type concentrator of representative with low cost with it, be prone to produce in enormous quantities, convenient plurality of advantages such as integrated, at home and abroad this field is widely used.But the hot spot that passes through the high power concentrator of Fresnel lens and form can produce focus because of optically focused is inhomogeneous; The easy too high and damage solar cell of Yin Wendu; Will reduce the photoelectric conversion efficiency of solar cell so greatly and reduce battery useful life; Therefore be badly in need of corresponding improvement is carried out in the structure setting of concentrator, so as to satisfying instructions for use.
The utility model content
For the further optically focused ratio that increases concentration photovoltaic system, and improve the spot intensity uniformity that incides solar cell.The purpose of the utility model is intended to develop a kind of flat-top total-reflection type secondary condensation/even light integrating device; This device can not only improve the spot intensity uniformity that incides solar cell; But also can realize secondary condensation to the Fresnel Lenses outgoing beam, further increase total optically focused ratio of concentration photovoltaic system.
In order to solve above technical problem; The technical solution of the utility model is: flat-top total-reflection type secondary condensation is spared the light integrating device; The upper bottom surface of said integrating device is over against light source, and bottom surface and solar cell connect, and it is characterized in that: said integrating device is a solid glass; Said upper bottom surface is the light refraction face with bottom surface; Said upper bottom surface area is greater than the bottom surface area, and the sidewall of said integrating device is coated with total reflection film, forms the interior light of integrating device does not have frustrated reflection at sidewall total reflection wall.
Further, said integrating device is that shaft section is down trapezoidal polygon column structure, comprises that at least radial section is foursquare four prisms cylinder, radial section is hexagonal hexagonal prism or the rounded cylinder of radial section.
Further, the upper surface of said integrating device is coated with anti-reflection film.
The technical scheme of using the utility model is: not only can further increase total optically focused ratio of concentration photovoltaic system, and can improve the uniformity of spot intensity on the solar cell, thereby improve conversion efficiency of solar cell.Advantages such as this integrating device has simple in structure, and is easy to operate, practical.
Description of drawings
Fig. 1 is a condensation photovoltaic module light channel structure sketch map;
Fig. 2 is the perspective view of the utility model secondary condensation and even light integrating device;
Fig. 3 is the generalized section of the utility model secondary condensation and even light integrating device;
Fig. 4 has and the simulation analysis figure during total reflection once at most only;
Fig. 5 has and the simulation analysis figure when at most the secondary total reflection only being arranged;
Fig. 6 has and the simulation analysis figure when at most three total reflections only being arranged;
Fig. 7 has and the simulation analysis figure when at most four total reflections only being arranged;
Fig. 8 is the spot intensity distribution map that single Fresnel lens forms;
Fig. 9 adds the spot intensity distribution map that forms behind the utility model secondary condensation and the even light integrating device for single Fresnel lens.
Embodiment
Below in conjunction with accompanying drawing the utility model is done further explain.
Shown in the utility model condensation photovoltaic module light path and product perspective view of Fig. 1, Fig. 2, present embodiment is the plane of incidence of light beam with the upper bottom surface, and bottom surface is the light beam exit facet.Incident beam gets into flat-top total-reflection type secondary condensation/even light integrating device 2 after through an optically focused of a concentrator 1 (being generally Fresnel lens), and the refraction through the flat-top total-reflection type secondary condensation/refraction of even light integrating device upper bottom surface, the repeatedly total reflection of sidewall and bottom surface arrives on the solar cell 3 again.In order to utilize solar energy to greatest extent, be placed on the bottom surface place to solar cell, so the area of bottom surface is decided according to the area of solar cell, the area of upper bottom surface is decided according to the bore of incident beam.Guaranteeing that light utilization efficiency is under 100% the prerequisite, according to the area of the plane of incidence and exit facet, through calculating the inclination angle that to obtain sidewall.
Generalized section as shown in Figure 3; Simple in order to analyze; If incident beam vertically gets into the plane of incidence; The angle of sidewall and horizontal bottom is D, and the optically focused when utilizing total reflection law and trigonometric function relation can obtain having only two sidewall total reflections obtains simulation analysis Fig. 4, Fig. 5, Fig. 6, shown in Figure 7 than the relation of K and D with software analysis.Thereby according to the area of incident beam bore and solar cell, just can determine the sidewall slope angle, and then confirm to be applied to the concrete parameter of flat-top total-reflection type secondary condensation/even light integrating device in the condensation photovoltaic module through analytical calculation.
As shown in Figure 8; It is the simple intensity distribution that uses the hot spot of a Fresnel lens formation; And as shown in Figure 9 be the intensity distribution of the onesize hot spot that after this Fresnel lens is with the reflective secondary condensation of flat-top that adds a utility model in the middle of the detector/even light integrating device, forms, and add that the light utilization efficiency of system increases behind flat-top total-reflection type secondary condensation/even light integrating device.Through calculating, the spot intensity uniformity of Fig. 9 is 83.2%, and the spot intensity uniformity of Fig. 8 is 13.7%, can know through contrast, in system, can improve the intensity uniformity of outgoing hot spot behind introducing flat-top total-reflection type secondary condensation/even light integrating device greatly.
Except that the foregoing description, the utility model can also have other execution modes.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection range of the utility model requirement.
Claims (3)
1. flat-top total-reflection type secondary condensation is spared the light integrating device; The upper bottom surface of said integrating device is over against light source, and bottom surface and solar cell connect, and it is characterized in that: said integrating device is a solid glass; Said upper bottom surface is the light refraction face with bottom surface; Said upper bottom surface area is greater than the bottom surface area, and the sidewall of said integrating device is coated with total reflection film, forms the interior light of integrating device does not have frustrated reflection at sidewall total reflection wall.
2. flat-top total-reflection type secondary condensation according to claim 1 is spared the light integrating device; It is characterized in that: said integrating device is that shaft section is down trapezoidal polygon column structure, comprises that at least radial section is foursquare four prisms cylinder, radial section is hexagonal hexagonal prism or the rounded cylinder of radial section.
3. flat-top total-reflection type secondary condensation according to claim 1 is spared the light integrating device, and it is characterized in that: the upper surface of said integrating device is coated with anti-reflection film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120569315XU CN202434553U (en) | 2011-12-30 | 2011-12-30 | Flat-top total-reflection type secondary light concentrating and homogenizing integrated device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120569315XU CN202434553U (en) | 2011-12-30 | 2011-12-30 | Flat-top total-reflection type secondary light concentrating and homogenizing integrated device |
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| Publication Number | Publication Date |
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| CN202434553U true CN202434553U (en) | 2012-09-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201120569315XU Expired - Lifetime CN202434553U (en) | 2011-12-30 | 2011-12-30 | Flat-top total-reflection type secondary light concentrating and homogenizing integrated device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104808324A (en) * | 2015-04-26 | 2015-07-29 | 包头市爱能控制工程有限责任公司 | Solar disk type power generation secondary condensation tube |
| CN104966748A (en) * | 2015-07-31 | 2015-10-07 | 中信博新能源科技（苏州）有限公司 | Double-face dodging double-face battery pack |
| CN104796087B (en) * | 2014-01-20 | 2017-05-03 | 中国科学院苏州纳米技术与纳米仿生研究所 | Photovoltaic cell concentration test device |
| TWI827522B (en) * | 2023-06-02 | 2023-12-21 | 大陸商立訊精密工業股份有限公司 | Method and device for adjusting light guide column and side wall structure of cylindrical light guide column |
-
2011
- 2011-12-30 CN CN201120569315XU patent/CN202434553U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104796087B (en) * | 2014-01-20 | 2017-05-03 | 中国科学院苏州纳米技术与纳米仿生研究所 | Photovoltaic cell concentration test device |
| CN104808324A (en) * | 2015-04-26 | 2015-07-29 | 包头市爱能控制工程有限责任公司 | Solar disk type power generation secondary condensation tube |
| CN104966748A (en) * | 2015-07-31 | 2015-10-07 | 中信博新能源科技（苏州）有限公司 | Double-face dodging double-face battery pack |
| CN104966748B (en) * | 2015-07-31 | 2017-09-26 | 江苏中信博新能源科技股份有限公司 | A kind of Double-sided battery pack of two-sided even light |
| TWI827522B (en) * | 2023-06-02 | 2023-12-21 | 大陸商立訊精密工業股份有限公司 | Method and device for adjusting light guide column and side wall structure of cylindrical light guide column |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120912 |