CN102338930A

CN102338930A - Solar light condensing structure made of optical thin film material and preparation method thereof

Info

Publication number: CN102338930A
Application number: CN2011102518558A
Authority: CN
Inventors: 邱继澄
Original assignee: SHENZHEN MERIDIAN GREEN ENERGY TECHNOLOGIES CO LTD
Current assignee: SHENZHEN MERIDIAN GREEN ENERGY TECHNOLOGIES CO LTD
Priority date: 2011-08-30
Filing date: 2011-08-30
Publication date: 2012-02-01

Abstract

The invention relates to a solar light condensing structure made of an optical thin film material and a preparation method thereof. The light condensing structure comprises a Fresnel lens and toughened glass. The Fresnel lens is attached and fixed on the toughened glass to form the light condensing structure together with the toughened glass. In the producing process of the solar light condensing structure, silica gel is covered on the surface of the toughened glass; and then the silica gel is set into the shape of the Fresnel lens by a die. Due to the adoption of the light condensing structure and the preparation method thereof, the ageing resistance, the outdoor weather resistance and the like of a light condensing component structure in a solar high concentration photovoltaic power generation module can be promoted. The light condensing structure and the preparation method thereof are beneficial for reducing the solar high concentration photovoltaic power generation cost and prolonging the service life.

Description

Salar light-gathering structure of optical thin film material and preparation method thereof

Technical field

The present invention relates to solar concentrating photovoltaic power generation equipment, a kind of concentrating component structure and preparation method thereof in the solar high power condense photovoltaic electrification module that is used for of saying so exactly.

Background technology

The solar photovoltaic technology let us is enjoyed the clean reproducible energy that the sun gives; And a necessary important concentrating component is exactly the concentrating component that is formed by Fresnel Lenses in the solar high power condense photovoltaic electrification module; Concentrating component structure in the existing sun ability high power condense photovoltaic electrification module; System adopts the sensitive surface of the Fresnel Lenses concentrating component of acrylic moulding directly to expose outside, does not have any protection.

Like No. 201010146844.9, patented claim described " manufacturing approach of nanometer self-cleaning spotlight solar energy Fresnel lens "; This application discloses a kind of manufacturing approach of nanometer self-cleaning spotlight solar energy Fresnel lens, and this method is that an acrylic board is carried out the hot-forming Fresnel Lenses that one side has nano-micro structure that forms on hot-press base plate.Adopt this method can produce the Fresnel Lenses of nano-micro structure very easily, cost is lower, processes simple and convenient.The concentrating component of this method made still is the acrylic moulding, and is poor in outdoor weathe resistance, low, the easy loss of heatproof, damage easily, and tenure of use is short, and this is a serious problem concerning the concentrating component of the long-term use out of doors of needs.Often increase considerably the cost and reduction generating efficiency of solar concentrating photovoltaic power generation.

Summary of the invention

Based on this; The purpose of this invention is to provide Salar light-gathering structure of a kind of optical thin film material and preparation method thereof; This concentration structure and preparation method thereof can promote that the interior concentrating component structure of solar high power condense photovoltaic electrification module is anti-aging, outdoor weathe resistance etc., helps reducing the solar high power condense photovoltaic electrification cost, increases tenure of use.

Another object of the present invention is Salar light-gathering structure that provides a kind of optical thin film material and preparation method thereof, and this concentration structure and preparation method thereof is made simple, and is with low cost, has high-weatherability, can anti-soil and hail etc.

For achieving the above object, the present invention realizes like this.

A kind of Salar light-gathering structure of optical thin film material is characterized in that this concentration structure includes Fresnel Lenses and tempered glass, and Fresnel Lenses adheres to and is fixed on the tempered glass, forms concentration structure with tempered glass.

Said Fresnel Lenses is that the silica gel material makes, and the form fix through the silica gel injection moulding forms an optical thin film material Fresnel Lenses structure on the tempered glass basal surface, and this lens arrangement and tempered glass basal surface form a plurality of first incidence surface lens; And second optical surface, it is located at this tempered glass below; By this, this optical film vertically penetrates the incident ray of different angles.

Said optical thin film material Fresnel Lenses structure includes plurality of films collector lens structure, and each film collector lens structure system is ring texture.

Said Fresnel Lenses is the silica gel of high printing opacity.

A kind of preparation method of Salar light-gathering structure of optical thin film material is characterized in that this method at tempered glass surface coverage silica gel, becomes the Fresnel Lenses shape through mould with shaping silica gel then.

Said silica gel is liquid-state silicon gel, earlier liquid-state silicon gel is covered in the tempered glass surface, passes through mould shape again.

Described method is established a Fresnel Lenses structure mold on tempered glass, the surface of this mould has a hole, in order to perfusion silica gel; The inside of mould has a space, holds silica gel, and this space is the Fresnel Lenses structure, and silica gel is full of the shape that can form Fresnel Lenses behind this space, to realize the spotlight effect of Fresnel Lenses.

Above-mentioned mould, the inner wall surface roughness in its space must make the surface present mirror status below 60um, is beneficial to liquid-state silicon gel and flows smooth and easy.

Said tempered glass, its underpart are established a heating arrangement, treat that liquid-state silicon gel is accomplished filling in the structure space of Fresnel Lenses structure mold and tempered glass after, through heating arrangement tempered glass is heated, impel liquid-state silicon gel typing.

The version that the present invention adopts silica gel directly to combine with tempered glass; Broken through the original structural design of Fresnel Lenses; Tempered glass can effectively be protected concentrating component; Make that the concentrating component structure is anti-aging, outdoor weathe resistance good, help reducing the solar high power condense photovoltaic electrification cost, increase tenure of use.

And it is simple, with low cost that the present invention realizes, is convenient to be applied in the various places of solar concentrating photovoltaic power generation.

Description of drawings

Fig. 1 is the actual processing procedure diagram of the present invention.

Fig. 2 is a silica gel material Fresnel Lenses structure optically focused synoptic diagram.

Fig. 3 is the single structure schematic perspective view.

Wherein: 1 is liquid-state silicon gel, and 2 is filling tube, and 3 is Fresnel Lenses structure mold cavity, and 4 is tempered glass, and 5 is hot gas, and 6 is well heater, and 7 is silica gel material Fresnel Lenses structure, and 8 is sunshine, and 9 are sun power conversion receiver, and 10 is sunshine optically focused direction.

Embodiment

Below in conjunction with accompanying drawing and embodiment the present invention is done into description.

The manufacturing process of Salar light-gathering structure is as shown in Figure 1 in the present invention's the solar high power condense photovoltaic electrification module; One tempered glass 4 is as the main body horizontal positioned of support and concentration structure; Mould 3 that preferably can cover the tempered glass outside surface of the tight pressing in the top of tempered glass 4 has a cavity in the mould 3, cavity body of mould and tempered glass 4 types form a confined space; Make liquid-state silicon gel 1 moulding in this space, accomplish the formation of Fresnel Lenses structure.

The upper surface of mould 3 also has a perforate, and silica gel filling tube 2 is inserted in this perforate, so that the cavity in the mould is poured into liquid-state silicon gel 1.Well heater 6 is set below the tempered glass 4, and 5 pairs of tempered glass 4 of hot gas heat, and accomplish the curing of liquid-state silicon gel 1.Liquid-state silicon gel 1 is elite optical grade silica gel, deposits in the filling tube 2, and filling tube 2 materials are the Stainless Steel manufacturing; Vertical fixing is in the surface of Fresnel Lenses mould, and the structural plane of Fresnel Lenses structure mold 3 cavitys is to adopt ultraprecise to process; This surfaceness must be below 60um, and the surface presents mirror status, is beneficial to liquid-state silicon gel 1 and flows smooth and easy; The Fresnel Lenses structure adopts a bleed type well heater 6 in the another side of tempered glass 4, treat that liquid-state silicon gel 1 is accomplished filling in the structure space of Fresnel Lenses structure mold 3 and tempered glass 4 after; Well heater 6 starts; Hot gas 5 begins tempered glass 4 heating, after liquid-state silicon gel 1 solidifies, promptly accomplishes and makes.

Shown in Figure 2, sunshine 8 carries out optically focused through Fresnel Lenses 7 again through tempered glass 4, and the light of process Fresnel Lenses 7 back optically focused can be changed on the receiver 9 at sun power by optically focused shown in 10.

The Salar light-gathering structure that completes, as shown in Figure 3, a tempered glass 4 has the Fresnel Lenses 7 that silica gel forms as substrate on the tempered glass 4.Common a plurality of tempered glass constituent components all has Fresnel Lenses 7 on each tempered glass assembly.Tempered glass 4 has one and penetrates the plane of incidence and an exiting surface; And one be located at this tempered glass assembly surface Fresnel Lenses; It has an incidence surface and an exiting surface; This first tempered glass assembly effectively partly isolates from the sunshine middle-ultraviolet lamp outside the glass, all the other light again via this Fresnel Lenses with light-ray condensing in a precalculated position.

In a word, the above is merely preferred embodiment of the present invention, is not the scope that is used for limiting the embodiment of the invention.Be that all equalizations of doing according to claim of the present invention change and modification, all in claim of the present invention.

Claims

1. the Salar light-gathering structure of an optical thin film material is characterized in that this concentration structure includes Fresnel Lenses and tempered glass, and Fresnel Lenses adheres to and is fixed on the tempered glass, forms concentration structure with tempered glass.

2. the Salar light-gathering structure of optical thin film material as claimed in claim 1; It is characterized in that said Fresnel Lenses is the making of silica gel material; Form fix through the silica gel injection moulding forms an optical thin film material Fresnel Lenses structure on the tempered glass basal surface, this lens arrangement and tempered glass basal surface form a plurality of first incidence surface lens; And second optical surface.

3. the Salar light-gathering structure of optical thin film material as claimed in claim 1 is characterized in that said optical thin film material Fresnel Lenses structure includes plurality of films collector lens structure, and each film collector lens structure system is ring texture.

4. the Salar light-gathering structure of optical thin film material as claimed in claim 2 is characterized in that said Fresnel Lenses is the silica gel of high printing opacity.

5. the preparation method of the Salar light-gathering structure of an optical thin film material is characterized in that this method at tempered glass surface coverage silica gel, becomes the Fresnel Lenses shape through mould with shaping silica gel then.

6. the preparation method of the Salar light-gathering structure of optical thin film material as claimed in claim 5 is characterized in that said silica gel, is liquid-state silicon gel, earlier liquid-state silicon gel is covered in the tempered glass surface, passes through mould shape again.

7. the preparation method of the Salar light-gathering structure of optical thin film material as claimed in claim 6 is characterized in that described method, on tempered glass, establishes a Fresnel Lenses structure mold, and the surface of this mould has a hole, in order to perfusion silica gel; The inside of mould has a space, holds silica gel, and this space is the Fresnel Lenses structure, and silica gel is full of the shape that can form Fresnel Lenses behind this space.

8. the preparation method of the Salar light-gathering structure of optical thin film material as claimed in claim 7 is characterized in that above-mentioned mould, and the inner wall surface roughness in its space must be below 60um.

9. the preparation method of the Salar light-gathering structure of optical thin film material as claimed in claim 5; It is characterized in that said tempered glass; A heating arrangement is established in its underpart; After treating that liquid-state silicon gel is accomplished filling in the structure space of Fresnel Lenses structure mold and tempered glass, tempered glass is heated, impel the liquid-state silicon gel typing through heating arrangement.