CN203433180U - Local coating-film entity composite paraboloid type condenser - Google Patents
Local coating-film entity composite paraboloid type condenser Download PDFInfo
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- CN203433180U CN203433180U CN201320556223.7U CN201320556223U CN203433180U CN 203433180 U CN203433180 U CN 203433180U CN 201320556223 U CN201320556223 U CN 201320556223U CN 203433180 U CN203433180 U CN 203433180U
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Abstract
The utility model relates to a local coating-film entity composite paraboloid type condenser. A condenser body is a hexahedron whose cross section is in a trapezoid shape. Two side waists of the trapezoid correspond to two side surfaces of the condenser body. The two side surfaces of the condenser body are composite paraboloids. A top surface and a bottom surface are planes. A material of the condenser body is a transparent material. Lower portions of the composite paraboloids of the two sides of the condenser body are plated with reflective films respectively. A lower end edge of the reflective film of each side is ended at a bottom surface edge of the entity composite paraboloid type condenser. The bottom surface of the condenser body is taken as a reference. A height of the reflective films is one-sixth to one-seventh of a height of the entity composite paraboloid type condenser. A portion which is not plated with the film on the condenser body of the utility model can generate a total reflection effect so that optical efficiency decrease caused by mirror surface reflection losses is greatly reduced. The portions which are plated with the films can reflect light of an incident angle which is close to a condenser acceptance angle to the bottom of the condenser. Performance in an acceptance angle scope is stable.
Description
Technical field
The utility model relates to field of solar energy utilization, is exactly the solar concentrator under the low zoom and focus of entity composite parabolic type.
Background technology
Composite parabolic type condenser CPC(Welford and Winston, 1978) be a kind of low light gathering according to marginal ray principle design than non-imaging condenser, the incident ray of accepting in angular region can be collected on absorber by desirable optically focused ratio.Especially the in the situation that of low zoom and focus, CPC does not need tracker, can fixedly mount.Entity composite parabolic type condenser is a kind of as composite parabolic type condenser, is different from the mirror-reflection structure of slot type, and its adopts refractive index to be greater than 1 transparent material and makes.Incident ray is due to the refraction action of transparent material, enter condenser after incident angle diminish, thereby be equivalent to the acceptance angle that has expanded condenser.Correlative study shows that light, when entity composite parabolic type condenser two N-Side surfs contact with air, total reflection can occur, thereby the reflection loss that can avoid mirror-reflection to bring is conducive to further improve the optical property of condenser.Through modeling effort, when angle of incidence of light approaches entity composite parabolic type condenser and accepts angle, all there is total reflection in not all light, is mainly reflected in the bottom section of condenser both side surface.And along with the change gradually of angle of incidence of light is large, the region that total reflection does not occur becomes large within the specific limits gradually, causes optical efficiency decline within the specific limits, thereby causes system performance to accept in angular region stable not at whole optics.
Utility model content
Less in order to solve condenser acceptance angle, when incident ray is accepted angle, optical loss obviously increases, and the entity composite parabolic type condenser that needs the problems such as tracker, the utility model that a kind of novel part plating reflectance coating is provided is installed.
It is as follows that concrete structure improves technical scheme:
Local plated film entity composite parabolic type condenser comprises condenser body, and described condenser body is that xsect is trapezoidal hexahedron, the two sides that described trapezoidal both sides waist correspondence condenser body; The two sides of condenser body are composite parabolic, and end face and bottom surface are plane; The material of condenser body is transparent material; The bottom of the composite parabolic of condenser body both sides is coated with respectively reflectance coating, and the lower edge of each lateral reflection film terminates in the bottom edge place of entity composite parabolic type condenser.
Take the bottom surface of condenser body is benchmark, and the height of reflectance coating is 1/6～1/7 of entity composite parabolic type condenser height.
Described reflective film material is high reflective aluminum or silver or other reflecting materials, and reflectance coating thickness is below 05 millimeter.
Described refractive index of transparent materials is greater than
be less than 2.
The utility model useful technique effect compared with prior art embodies in the following areas:
(1) adopt transparent material to make entity composite parabolic type condenser, utilize refraction action, compare and increased condenser acceptance angle with grooved composite parabolic type condenser, do not need to follow the tracks of, saved a large amount of tracking costs;
(2) can there is total reflection effect in the entity composite parabolic type condenser relating in the utility model not plated film part, compare to have greatly reduced the optical efficiency being caused by mirror-reflection loss and decline with existing grooved composite parabolic type condenser;
(3) the entity composite parabolic type condenser plated film part relating in the utility model can approach incident angle the light reflection of condenser acceptance angle to condenser bottom, more stable compared with non-plated film entity composite parabolic type condenser performance in accepting angular region;
(4) local plated film entity composite parabolic type condenser is made by certain degree of hardness transparent material, and Stability Analysis of Structures, does not need support.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Fig. 2 is the partial enlarged drawing of Fig. 1.
Fig. 3 is the utility model fundamental diagram.
Sequence number in upper figure: condenser body 1, reflectance coating 2, composite parabolic 3, end face 4, bottom surface 5.
Embodiment
Below in conjunction with accompanying drawing, by embodiment, the utility model is further described.
Referring to Fig. 1, local plated film entity composite parabolic type condenser comprises condenser body 1, and condenser body 1 is trapezoidal hexahedron for xsect, and described trapezoidal both sides waist is corresponding the two sides of condenser body 1 respectively; The two sides of condenser body 1 are composite parabolic 3, and end face 4 and bottom surface 5 are plane; The material of condenser body 1 is transparent material, and refractive index of transparent materials span is greater than
be less than 2.
The bottom of the composite parabolic 3 of condenser body 1 both sides is coated with respectively reflectance coating 2, and reflective film material is high reflective aluminum, and thickness is 0.4mm.The lower edge of each lateral reflection film 2 terminates in the bottom edge place of local plated film entity composite parabolic type condenser, and take the bottom surface 5 of condenser body 1 is benchmark, and the height of reflectance coating 2 is 1/7 of entity composite parabolic type condenser height.
Principle of work of the present utility model is as follows: as shown in Figure 3, through the end face 4 of condenser body 1, there is refraction effect in light, a part is radiated at the region of non-plated film, because total reflection effect finally arrives bottom surface 5, a part is radiated at the region of plated film, due to the same final bottom surface 5 that arrives of mirror-reflection effect of reflectance coating 2.
The utility model utilizes light that the feature of refraction occurs through transparent material, further expanded the acceptance angle of condenser, utilize the total reflection effect of entity composite parabolic type condenser and the method for local plated film simultaneously, at condenser, accept angle with the interior stability that guarantees optical property.
Reflective film material is silver, and thickness is 0.2mm, and the height of reflectance coating is 1/6 of entity composite parabolic type condenser height.
The other the same as in Example 1.
Claims (4)
1. local plated film entity composite parabolic type condenser, comprises condenser body, and described condenser body is that xsect is trapezoidal hexahedron, the two sides that described trapezoidal both sides waist correspondence condenser body; The two sides of condenser body are composite parabolic, and end face and bottom surface are plane; The material of condenser body is transparent material; It is characterized in that: the bottom of the composite parabolic of condenser body both sides is coated with respectively reflectance coating, and the lower edge of each lateral reflection film terminates in the bottom edge place of entity composite parabolic type condenser.
2. local plated film entity composite parabolic type condenser according to claim 1, is characterized in that: take the bottom surface of condenser body is benchmark, and the height of reflectance coating is 1/6～1/7 of entity composite parabolic type condenser height.
3. local plated film entity composite parabolic type condenser according to claim 1 and 2, is characterized in that: described reflective film material is high reflective aluminum or silver, and reflectance coating thickness is below 0.5mm.
4. local plated film entity composite parabolic type condenser according to claim 1 and 2, is characterized in that: described refractive index of transparent materials is greater than
be less than 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320556223.7U CN203433180U (en) | 2013-09-09 | 2013-09-09 | Local coating-film entity composite paraboloid type condenser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320556223.7U CN203433180U (en) | 2013-09-09 | 2013-09-09 | Local coating-film entity composite paraboloid type condenser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203433180U true CN203433180U (en) | 2014-02-12 |
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ID=50062208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320556223.7U Expired - Fee Related CN203433180U (en) | 2013-09-09 | 2013-09-09 | Local coating-film entity composite paraboloid type condenser |
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| Country | Link |
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| CN (1) | CN203433180U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103941394A (en) * | 2014-04-18 | 2014-07-23 | 西安交通大学 | Cutting-out method of panel receiving type compound parabolic concentrator |
| CN105204150A (en) * | 2014-06-17 | 2015-12-30 | 北京大学深圳研究生院 | Compound paraboloid light concentrator |
-
2013
- 2013-09-09 CN CN201320556223.7U patent/CN203433180U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103941394A (en) * | 2014-04-18 | 2014-07-23 | 西安交通大学 | Cutting-out method of panel receiving type compound parabolic concentrator |
| CN103941394B (en) * | 2014-04-18 | 2016-03-30 | 西安交通大学 | A kind of intercept method of dull and stereotyped receiving type compound parabolic concentrator |
| CN105204150A (en) * | 2014-06-17 | 2015-12-30 | 北京大学深圳研究生院 | Compound paraboloid light concentrator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140212 Termination date: 20160909 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |