CN201637923U - High-power composite condenser lens - Google Patents
High-power composite condenser lens Download PDFInfo
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- CN201637923U CN201637923U CN2010201392553U CN201020139255U CN201637923U CN 201637923 U CN201637923 U CN 201637923U CN 2010201392553 U CN2010201392553 U CN 2010201392553U CN 201020139255 U CN201020139255 U CN 201020139255U CN 201637923 U CN201637923 U CN 201637923U
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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
A high-power composite condenser lens comprises two Fresnel lenses, a fixing frame and a fixing strip, wherein the two Fresnel lenses are arranged inside the fixing frame in a quadrature overlapped manner; the fixing strip is arranged between the two Fresnel lens; the focal lengths of the Fresnel lenses range from 280mm to 360mm; each Fresnel lens comprises a strip-shaped central planar plate portion arranged on the center line of the same and at least two groups of prism combinations symmetrically arranged on two sides of the central planar plate portion; the central planar plate portion is the same with the prism combinations in width ranging from 10mm to 12mm; each prism group comprises at least one right-angle prism arranged parallelly to the central planar plate portions; a right-angle edge of the right-angle prism is arranged close to the central planar plate portion; and an included angle alpha between an inclined face and a bottom face of the right-angle prism in the same prism group is the same. The high-power composite condenser lens adopts the Fresnel lenses with a plurality of prism groups with the same area and arrangement in an up and down quadrature manner, thereby enhancing illumination intensity after reflection and concentration, greatly increasing generation efficiency, and reducing cost.
Description
Technical field
The utility model relates to a kind of collector lens, relates in particular to a kind of high power combined light gathering lens that are used to gather sun power.
Background technology
New forms of energy are one of five big technical fields of tool decision power in the 21st century development of world economy.New forms of energy will meet two conditions simultaneously: the one, contain abundant can be exhausted; The 2nd, safety, clean can not threaten human and the destruction environment.It is very huge to be radiated at tellurian sun power, is radiated at tellurian sun power in about 40 minutes, just is enough to the consumption for 1 year energy of global human.We can say that sun power is a kind of cleaning, efficiently and never depleted new forms of energy.At present, national governments are all with the important content of solar energy resources utilization as the national sustainable development strategy.That photovoltaic generation has is safe and reliable, noiseless, pollution-free, restriction less, advantages such as low, the easy maintenance of failure rate, under the various and sparsely populated current conditions of the western length and breadth of land severe cold of China, landform, can bring into play very unique effect.
The utilization of sun power can be optically focused, also can be non-optically focused.The non-concentrating to generate power of sun power will be used large-area photovoltaic cell, and the generating set cost is more expensive, influences the popularization of solar electrical energy generation.The utilization of Photospot solar mainly is with condenser solar heat to be gathered together to be used for generating, hot water etc., and it is light collecting that the gathering of sunshine mainly contains parabolic reflecting type, typical circular lens light gathering formula and ring-type Fresnel lens at present.Parabola reflecting type condenser structure is complicated, manufacturing is difficult, cost is high, and common garden shape collector lens also has makes the shortcoming difficult, that cost is high, all is difficult to promote the use of.And be used for the annular Fresnel lens of solar energy concentration generating now, and it becomes with plastic processing, and its light gathering efficiency is poor on the one hand, and serviceable life is short, and cost is also expensive on the other hand, has therefore restricted its large tracts of land at concentration solar generating and has promoted.
Summary of the invention
The purpose of this utility model is to overcome the shortcoming of above-mentioned solar concentrator, and a kind of simple in structure, cost is low, spotlight effect good and transmittance is high high power combined light gathering lens are provided.
To achieve these goals, the utility model is taked following technical solution:
A kind of high power combined light gathering lens comprise two Fresnel lenses, fixed frame and fixed strips, wherein, two overlapping being arranged in the fixed frame of Fresnel lens quadrature, fixed strip is located between two Fresnel lenses; The focal length of Fresnel lens is 280-360mm, and comprises the prism group that bar shaped center flat part on the heart line located therein and at least two groups are symmetrically set in flat part both sides, center, and the center flat part is identical with the width of prism group, is 10-12mm; The prism group comprises the right-angle prism that at least one and center flat part be arranged in parallel, and a right-angle side of right-angle prism is provided with near the center flat part; The inclined-plane of right-angle prism is identical with the angle α angle between the bottom surface in the same prism group, and the α angle can be chosen in 1-35 ° of scope.The α angle calculates by following formula:
∠α＝arctg?α
∠β＝arctg?β
N in the formula
12Refractive index for light from air to Fresnel lens glass, d is the distance at the center to center flat part center of each prism group, F is the distance of flat part center, center to the focal plane.
Center of the present utility model flat part symmetria bilateralis is provided with two groups of above prism groups, and the α angle of right-angle prism is inequality in the different prism groups, and is big more away from the α angle of right-angle prism in the prism group of center flat part more.
The symmetrical respectively the best in flat part both sides, center of the present utility model is provided with 12 prism groups.
Fixed frame of the present utility model be provided with other device between the mounting hole that connects.
As seen from the above, the utility model adopts the Fresnel lens with the identical prism group of many group areas, quadrature is stacked up and down, intensity of illumination after refraction is converged is strengthened, reflect simultaneously and converge to predefined area and position inciding sunshine on the different prism groups or other directional light, can be with the photovoltaic cell capable of generating power of small size very, thus generating efficiency is improved greatly, cost reduces, and is beneficial to the popularization of solar energy generation technology.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment 1.
Fig. 2 is the left cut-open view of Fig. 1.
Fig. 3 is the vertical view of Fig. 1.
Fig. 4 is the partial schematic diagram of Fresnel lens 1 sectional view figure on the utility model embodiment 1.
Fig. 5 is the structural representation of Fresnel lens on the utility model embodiment 5.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is done explanation in further detail.For convenience of explanation, the inclined-plane of right-angle prism and the angle between baseplane (being plane of light incidence and exit facet) are defined as the α angle.
As shown in Figures 1 and 2, the high power combined light gathering lens of present embodiment comprise Fresnel lens 1, following Fresnel lens 2, fixed frame 3, fixed strip 4, last Fresnel lens 1 is in following Fresnel lens stacked formation Fresnel lens group about in the of 2, the focal length F of last Fresnel lens 1 is 300mm, and the focal length F of following Fresnel lens 2 is 290mm.Last Fresnel lens 1 is bonded on the fixed frame 3 with fluid sealant with following Fresnel lens 2 quadratures are overlapping, also available sealing resin is bonding, and fixed strip 4 usefulness fluid sealants are bonded between Fresnel lens 1 and the following Fresnel lens 2 and are positioned at fixed frame 3 inboard all around.Fixed strip 4 and last Fresnel lens 1 and bonding between the Fresnel lens 2 down with fluid sealant, also available sealing resin is bonding, and fixed strip 4 available metals, plastics or rubber are made.Fixed frame 3 usefulness metal sheet material are made, and mode sealing-ins such as available screw or welding can be provided with on the fixed frame 3 and install or fixed orifice, so that and being connected and fixed between other device.
With reference to Fig. 3, last Fresnel lens 1 is square simultaneously, and last Fresnel lens 1 comprises center flat part 10 and is symmetrically set in 12 last prism groups of center flat part 10 both sides respectively, goes up the prism group for totally 24.The width of the width of prism group and center flat part 10 is 12mm on each, and each symmetrically arranged 12 last prism group of last center flat part 10 every sides label successively are a, b, c ..., l; Last center flat part 10 thickness are even.Prism in the last prism group is a right-angle prism, and the shape of cross section of promptly going up the prism profile of tooth is a right-angle triangle, and a right-angle side of right-angle triangle is positioned at center flat part 10 sides, and the side direction that last prism thickness is bigger center flat part 10.The α angle of prism is all identical on same each that goes up in the prism group.
As shown in Figure 4, comprise 1 bar shaped prism that be arranged in parallel with last center flat part 10 among the prism group a on first, the width of prism is 12mm in this group; Comprise 2 prisms that be arranged in parallel with last center flat part 10 on second among the prism group b, the width of prism is 6mm in this group; Also comprise 2 prisms that be arranged in parallel with last center flat part 10 on the 3rd among the prism group c, the width of prism is 6mm in this group; Comprise 3 prisms on the 4th among the prism group d, the width of prism is 4mm in this group; Also comprise 3 prisms on the 5th among the prism group e, the width of prism is 4mm in this group; Comprise 4 prisms on the 6th among the prism group f, the width of prism is 3mm in this group; Also comprise 4 prisms on the 7th among the prism group g, the width of prism is 3mm in this group; Comprise among the prism group h on the 8th that 5 are gone up prism, the width of going up prism in this group is 2.4mm; Comprise 6 prisms on the 9th among the prism group i, the width of prism is 2mm in this group; Also comprise 6 prisms on the tenth among the prism group j, the width of prism is 2mm in this group; Comprise 6 prisms on the 11 among the prism group k, the width of prism is 2mm in this group; Comprise 6 prisms on the 12 among the prism group l, the width of prism is 2mm in this group.After right-angle prism glass was determined in one to 12 group, the refractive index of lens glass all can be determined, by formula can calculate the occurrence that the α angle is.
Same, following Fresnel lens 2 also comprises the following center flat part 20 of the bar shaped on the heart line located therein and the following prism group that at least two groups are symmetrically set in down center flat part 20 both sides, label is A successively, B, C ... L, the structure basically identical of the structure of following Fresnel lens 2 and last Fresnel lens 1, the width of the following center flat part 20 of following Fresnel lens 2 is identical with the width of the last center flat part 10 of last Fresnel lens 1, quantity that the following prism group of following Fresnel lens 2 is provided with and width also with last Fresnel lens 1 in the quantity and the width of prism group corresponding identical.Difference is, because following Fresnel lens 2 will deduct the height of lens and the distance at interval to the focal plane apart from F, therefore, the α angle of the prism in last Fresnel lens 1, the following Fresnel lens 2 in the prism group of correspondence position is difference owing to the difference of F, so that guarantee to go up Fresnel lens 1, though there is difference Fresnel lens 2 positions down, the position of converging the light hot spot is all on the same plane that is parallel to lens.
Present embodiment and embodiment 1 different place is: the focal length F that goes up Fresnel lens is 360mm, and the focal length of following Fresnel lens is 350mm.The geometric configuration of last Fresnel lens 1, following Fresnel lens 2 is identical with embodiment 1, and the connecting relation of other parts and parts is identical with embodiment 1.
Present embodiment and embodiment 1 different place is: the focal length F that goes up Fresnel lens is 280mm, and the focal length of following Fresnel lens is 270mm.The geometric configuration of upper and lower Fresnel lens is identical with embodiment 1, and the connecting relation of other parts and parts is identical with embodiment 1.
Present embodiment and embodiment 1, different places are: go up Fresnel lens 1, the width of each the prism group in the Fresnel lens 2 is 10mm down.The focal length and the geometric configuration of last Fresnel lens 1, following Fresnel lens 2 are identical with embodiment 1, and the connecting relation of other parts and parts is identical with embodiment 1.
Embodiment 5
As shown in Figure 5, the last Fresnel lens 1 in the present embodiment comprises center flat part 10 and is located at the last prism group a of flat part both sides, center respectively.The geometric configuration of last Fresnel lens 1, following Fresnel lens 2 is identical with embodiment 1, and the connecting relation of other parts and parts is identical with embodiment 1.
The prism of bar shaped can reflect the directional light that incides on the prism to the thicker side of prism thickness, one group of identical prism group of angle just can reflect the directional light that incides on the prism group on the identical plane of prism thickness thicker a side, area abreast.Select suitable α angle, the directional light that incides on the different prism groups can be reflected on the arrowband that converges to predetermined location and width simultaneously.The last Fresnel lens 1 of the stacked installation of quadrature and following Fresnel lens 2 just can converge to the sunshine or the refraction of other directional light of incident on predefined area and the position.The quantity of prism is the integer more than or equal to 1 in each prism group of the present utility model, controls the height of prism tooth with the quantity of prism, makes it in 0.3mm～2mm scope.Flat part 10 both sides, last center are provided with two groups of above last prism groups, and the angle of the α of the last prism in the different prism groups is inequality, and the angle away from the α of the last prism in the last prism group of last center flat part 10 is big more more.
Fresnel lens is provided with the identical prism group of n group area, refraction converge to intensity of illumination on the focal plane will be incident ray intensity n doubly, and the intensity of illumination that refraction converges on the focal plane through the combined light gathering lens will be the n of incident ray intensity
2Doubly.Therefore, adopt the high power combined light gathering lens of the utility model structure to assemble solar electrical energy generation, can use the very photovoltaic cell capable of generating power of small size, thereby generating efficiency is improved greatly, the generating set cost significantly reduces, and is beneficial to the popularization of solar energy generation technology.
Fresnel lens of the present utility model is to make through rolling or compacting or pressure injection or stretching with glass, organic glass or other transparent materials, and outward appearance is square or strip or circle.The prism group can adopt integrally manufactured technology to be prepared into a whole prism group, also can by multi-disc independently prism combine.
The high power combined light gathering lens glass manufacturing that is used for solar electrical energy generation of the present utility model, the light gathering efficiency height, the life-span can reach decades, production and processing is simply easy, spotlight effect and transmittance are good, and cost is also quite cheap, and the compound lens of generated energy 20W only needs 30～35 yuan.Every kilowatt generating set cost can be controlled at about 1.3 ten thousand yuan.The utility model is assembled solar power generation with compound lens, can use the very photovoltaic cell of small size, and generating efficiency is improved greatly, and the generating set cost reduces significantly, thereby reduces cost for solar power generation significantly, and solar electrical energy generation can extensively be promoted.
Claims (4)
1. high power combined light gathering lens, it is characterized in that: comprise two Fresnel lenses (1,2), fixed frame (3) and fixed strip (4), wherein, described two Fresnel lenses (1,2) quadrature is overlapping is arranged in the described fixed frame (3), and described fixed strip (4) is located between described two Fresnel lenses (1,2);
Described Fresnel lens (1,2) focal length is 280-360mm, and comprise the bar shaped center flat part (10 on the heart line located therein, 20) and at least two groups be symmetrically set in described center flat part (10,20) the prism group of both sides, described center flat part (10,20) is identical with the width of described prism group, is 10-12mm;
Described prism group comprises the right-angle prism that at least one and described center flat part (10,20) be arranged in parallel, and a right-angle side of described right-angle prism is provided with near described center flat part (10,20); The inclined-plane of right-angle prism is identical with the angle α angle between the bottom surface in the same prism group.
2. high power combined light gathering lens as claimed in claim 1, it is characterized in that: described center flat part (10,20) symmetria bilateralis is provided with two groups of above prism groups, the α angle of right-angle prism is inequality in the different prism groups, more big more away from the α angle of right-angle prism in the prism group of center flat part (10,20).
3. high power combined light gathering lens as claimed in claim 1 or 2 is characterized in that: described center flat part (10,20) both sides are symmetrically arranged with 12 prism groups respectively.
4. high power combined light gathering lens as claimed in claim 1 is characterized in that: be processed with on the described fixed frame (3) with other device between the mounting hole that connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201392553U CN201637923U (en) | 2010-03-23 | 2010-03-23 | High-power composite condenser lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201392553U CN201637923U (en) | 2010-03-23 | 2010-03-23 | High-power composite condenser lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201637923U true CN201637923U (en) | 2010-11-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201392553U Expired - Fee Related CN201637923U (en) | 2010-03-23 | 2010-03-23 | High-power composite condenser lens |
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| Country | Link |
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| CN (1) | CN201637923U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107078689A (en) * | 2015-07-20 | 2017-08-18 | 理查德·奥赫 | Sunshine strengthens TRT |
| CN113167935A (en) * | 2018-12-12 | 2021-07-23 | 海利亚克有限公司 | Silicon Fresnel lens on glass substrate for solar concentrator and method of manufacture |
-
2010
- 2010-03-23 CN CN2010201392553U patent/CN201637923U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107078689A (en) * | 2015-07-20 | 2017-08-18 | 理查德·奥赫 | Sunshine strengthens TRT |
| CN107078689B (en) * | 2015-07-20 | 2019-09-10 | 理查德·奥赫 | Sunlight enhances power generator |
| CN113167935A (en) * | 2018-12-12 | 2021-07-23 | 海利亚克有限公司 | Silicon Fresnel lens on glass substrate for solar concentrator and method of manufacture |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101117 Termination date: 20140323 |