CN1983639A

CN1983639A - Solar photoelectric and light-heat composite vacuum pipe

Info

Publication number: CN1983639A
Application number: CNA2006100029772A
Authority: CN
Inventors: 江希年
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-02-06
Filing date: 2006-02-06
Publication date: 2007-06-20

Abstract

The invention is concerned with photovoltaic and photo-thermal multiple vacuum tube of solar energy. It relates to thin film solar energy cell deposited on the metal floor bar, metal heat pipe sealed on this bar and encapsulation transparent glass pipe. The glass pipe is vacuum and the thin film solar energy cell that is closed in it to avoid oxidation, damp and erosion. A part of the absorbed solar energy changes into electricity and educes outside of glass pipe by metal lead connecting on frontispiece pole and the metal lead sealed on the back pole metal floor bar. And a part changes into heat and carries to heat pipe evaporation pipe by metal floor bar and continues to the condensation end of heat pipe out of the glass pipe, and the condensation end is covered with a thin film insulating lacquer. When the condensation end enters in water tank or the sleeve, the glass pipe reduces heat losing by carrying heat inside of electricity to increase heat-collecting efficiency. Heat pipe carries the heat gathered by solar energy cell and reduces its work temperature and increases photoelectric conversion efficiency. The pipe has higher work temperature of solar cell by generate electricity and heat together.

Description

Solar photoelectric and light-heat composite vacuum pipe

Affiliated field

The present invention relates to the solar photoelectric light-heat coupling, is solar photoelectric and light-heat composite vacuum pipe concretely.

Background technology: present solar energy power generating extensive use crystal silicon cell or amorphous silicon, hull cells such as copper indium diselenide are packaged into plate shape module. and the heat energy that absorbs during solar panel work does not utilize, cause that the solar panel working temperature raises, and has reduced photoelectric conversion efficiency.

Present various plate solar or vacuum tube collector only have the photo-thermal translation function, can only heat supply, and as the domestic hot water. can not generate electricity.

Therefore be necessary to invent a kind of solar photoelectric and light-heat composite vacuum pipe, integrate solar power generation and generate heat, improve solar energy converting efficient, reduce solar energy and utilize cost.

Summary of the invention

The object of the present invention is to provide solar photoelectric and light-heat composite vacuum pipe, have good solar photoelectric light-heat conversion performance, heat supply when electric power is provided, the conversion efficiency height, production cost is low.

Purpose of the present invention can adopt following technical scheme to realize:

Solar photoelectric and light-heat composite vacuum pipe. by the thin-film solar cells (being generally non-crystal silicon solar cell) that is deposited on the metallic substrates (being generally the aluminum strip band), be welded on the heat pipe (being generally the copper heat pipe) on this metal band, and the transparent glass tube of encapsulation is formed.

The thin-film solar cells front is a nesa coating, being furnished with grid line shape front electrode on the nesa coating and drawing outside the glass tube by the conduction on line. metal band directly is welded on the evaporation tube of metal heat pipe by ultrasonic or Laser Welding as the back electrode of thin-film solar cells. and this heat pipe passes an end of glass tube, forms the condensation end of heat pipe.

Because of the thin-film solar cells on the metal band punctures in band-heat pipe commissure, laser is used with nesa coating etching trimming in the weld seam both sides, to prevent itself and backplate short circuit.

Glass tube is as the package tube of thin-film solar cells band, and an end seals, and heat pipe is drawn from the other end, and the place's of drawing glass pipe end and metal heat pipe adopt known metal-glass sealing by fusing or the sealing-in of hot-press sealing method.

Vacuumize in the glass tube. on the one hand protected thin-film solar cells to avoid oxidation, made moist and wait erosion. reduce the metal band heat waste on the one hand. the photo-thermal conversion efficiency of raising solar photoelectric and light-heat composite pipe.

Solar photoelectric and light-heat composite vacuum pipe of the present invention receive the sun width of cloth according to the time, thin-film solar cells is an electric energy with a part of solar energy converting, and the positive and negative electrode connection in series-parallel of a plurality of solar photoelectric and light-heat composite vacuum pipes can be obtained needed electric power; Thin-film solar cells is a heat energy with another part solar energy converting, spread out of outside the glass tube by metal band-heat pipe evaporator section-this heat transfer path of heat pipe condensation end. the condensation end of one or more solar photoelectric and light-heat composite vacuum pipes is inserted in the sleeve pipe of water tank or collector (dry contact), working medium is with the heat transferred user of heat pipe condensation end. and be the cover tube short circuit of avoiding and metal heat pipe that back electrode connects and condensation end insert collector, the heat pipe condensation end should clad skim insulating material (as insulating varnish). and it is non-conductive to conduct heat when this condensation end inserts heat transfer sleeve pipe or heat-transfer working medium.

Solar photoelectric and light-heat composite vacuum pipe of the present invention obviously improves the utilization ratio of solar energy.

Solar photoelectric and light-heat composite vacuum pipe production cost of the present invention is lower, but large-scale production.

Description of drawings

Fig. 1 embodiment of the invention front elevation;

Fig. 2 embodiment of the invention profile;

Fig. 3 embodiment of the invention section partial enlarged drawing.

Embodiment

Embodiment: as Fig. 1, Fig. 2, shown in Figure 3, solar photoelectric and light-heat composite vacuum pipe of the present invention is by the amorphous silicon thin-film solar cell 2 that is deposited on the aluminium substrate band 1, copper heat pipe 5, transparent glass tube 6 is formed. and aluminium substrate band 1 thickness can be 0.2-2mm. amorphous silicon thin-film solar cell 2 positive deposition of transparent conductive film 3, has prepared the grid line shape front electrode 4. grid line 4-2 of branch on the nesa coating 3 and has compiled and be connected in main grid line 4-1.

Fig. 3 has illustrated the concrete structure of unijunction amorphous silicon thin-film solar cell: the 1st, and aluminum base layer, 2 is unijunction amorphous silicon membrane battery, and 2-1 is the n layer, and 2-2 is the i layer, and 2-3 is the p layer, and 3 is nesa coating, and 4 is the front electrode grid line.

As Fig. 1, shown in Figure 3, the evaporation section 5-1 and the aluminum strip band 1 of copper heat pipe 5 are connected to 9 places by ultrasonic seam welding, to form good contact. and laser is used with nesa coating etching trimming in weld seam both sides 8, to prevent itself and backplate short circuit.

As shown in Figure 2; transparent glass tube 6 internal diameters are slightly larger than aluminium substrate band 1 width; in order to avoid both directly contact. as shown in Figure 1; the one end 6-1 sealing of transparent glass tube 6. the other end is evacuated by kovar alloy 10 seal glass pipes 6 and heat pipe 5. transparent glass tubes 6 interior 11; on the one hand protected thin-film solar cells to avoid oxidation, made moist and wait erosion. reduce the heat-collecting strip heat waste on the one hand. the photo-thermal conversion efficiency of raising solar photoelectric and light-heat composite vacuum pipe.

As shown in Figure 1, the condensation end 5-2 of heat pipe 5 surface coated one deck insulating varnish 7, it is non-conductive to conduct heat when this condensation end inserts heat transfer sleeve pipe or heat-transfer working medium.

As shown in Figure 1, be welded on the lead 4-3 on the front electrode main grid line 4-1 and the back electrode lead-in wire 1.1 that is welded on the aluminium substrate band 1 passes glass tube bottom 6-1 to pipe, and passing place and glass tube bottom 6-1 sealing by fusing.

When solar photoelectric and light-heat composite vacuum pipe of the present invention shines at the reception sun width of cloth, thin-film solar cells 2 is an electric energy with a part of solar energy converting, and the positive and negative electrode lead 4-3 and 1.1 connection in series-parallel of a plurality of solar photoelectric and light-heat composite vacuum pipes can be obtained needed electric power; Thin-film solar cells 2 is a heat energy with another part solar energy converting, by aluminum strip band 1, heat pipe evaporator section 5-1, this heat transfer path of heat pipe condensation end 5-2 spreads out of outside the glass tube. the condensation end 5-2 of one or more solar photoelectric and light-heat composite vacuum pipes inserted in the sleeve pipe of water tank or collector (dry contact), working medium in water tank or the collector is with the heat transferred user of heat pipe condensation end. and meanwhile reduce the working temperature of thin-film solar cells 2, improved the photoelectric conversion efficiency of thin-film solar cells 2.

The foregoing description only is one embodiment of the present invention, only is used to the present invention is described but not is used to limit the present invention.

Claims

1. solar photoelectric and light-heat composite vacuum pipe.By the thin-film solar cells that is deposited on the metallic substrates band, the transparent glass tube that is welded on metal heat pipe on this metal band and encapsulation is formed.

2. thin-film solar cells as claimed in claim 1 can be unijunction or many junction amorphous silicons solar cell, amorphous silicon/microcrystalline silicon solar cell or other thin-film solar cells. battery front side is a nesa coating, is grid line shape front electrode on the nesa coating.

3. metallic substrates band as claimed in claim 1 should have the favorable conductive heat conductivility, uses aluminium strip usually, and this aluminium strip also is a solar heat collection strip as the backplate of thin-film solar cells.

4. heat pipe as claimed in claim 1 is the metal heat pipe, be generally the copper heat pipe, its evaporation section and thin-film solar cells metallic substrates band are by ultrasonic or laser welding. the weld seam both sides with laser with nesa coating etching trimming, to prevent itself and backplate short circuit.

5. the solar cell that is welded on the heat pipe inserts in the transparent glass tube of end sealing, the condensation end of heat pipe stretches out from the glass tube other end, this glass pipe end and heat pipe condensation end available metal-glass head seal or the sealing-in of hot-press sealing method. and interior thin-film solar cells front electrode metal lead wire of glass tube and the weldering knot backplate lead-in wire on aluminium strip passes glass tube walls (sealing by fusing) and draws outside the glass tube.

6. be evacuated in the glass tube.

7. heat pipe condensation end coated skim insulating varnish. it is non-conductive to conduct heat when this condensation end inserts the heat transfer sleeve pipe of water tank or collector.