CN202772160U

CN202772160U - Photovoltaic assembly provided with illuminated area increased by spherical segment arrays

Info

Publication number: CN202772160U
Application number: CN2012203241468U
Authority: CN
Inventors: 不公告发明人
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-07-06
Filing date: 2012-07-06
Publication date: 2013-03-06
Anticipated expiration: 2022-07-06

Abstract

The utility model discloses a photovoltaic assembly provided with an illuminated area increased by spherical segment arrays. The photovoltaic assembly includes a backplane component. A lower EVA glue film layer, a cell sheet layer, an upper EVA glue film and an encapsulation cover plate glass layer are arranged on the backplane component successively; one side of cover plate glass is a plane, and the other side of the cover plate glass is provided with patterns formed by a plurality of light-transmitting unit arrays; each light-transmitting unit is a spherical segment in shape. The solar photovoltaic glass in the utility model is used for a solar photovoltaic cell assembly, the width of each set of light-transmitting units is equal to the distance between two auxiliary grid lines of cell sheets. When light passes through the patterned glass in the utility model, after refracted, the light can entirely pass through the solar photovoltaic glass and achieve the cell sheets, thereby increasing the illuminated area and improving transmittance; and if the solar photovoltaic glass is applied to photovoltaic assemblies, photovoltaic conversion efficiency can be improved.

Description

A kind of photovoltaic module with segment array increase light-receiving area

Technical field

The utility model relates to a kind of solar photovoltaic assembly, relates in particular to a kind of photovoltaic module that the segment array increases light-receiving area that has.

Background technology

Solar energy is a kind of clean reproducible new forms of energy, and the parent who more and more is subject to people looks at, and widely effect is arranged in people's life, work, and one of them is converted to electric energy with solar energy exactly.

At present, the photovoltaic module of photovoltaic module enterprise production both at home and abroad, primary structure comprises: the compositions such as encapsulation cover plate glass, EVA glued membrane, solar battery sheet, EVA glued membrane, TPT backboard, above-mentioned subelement becomes as a whole by heated lamination, is encapsulated in and forms photovoltaic module in the aluminium frame.

Encapsulation cover plate glass mainly adopts surface forming that the solar energy photovoltaic glass of tiny colored type is arranged in the above-mentioned photovoltaic module, glass surface is the tiny colored types such as matte, hexagon, quadrangle, flower moldeed depth degree is generally below the 0.3mm, the flower type plays the inhibition light reflection, increase the effect of light transmittance, but the glass light-receiving area does not change, and the photovoltaic module light-receiving area does not change yet.

Solar battery sheet is critical piece in the above-mentioned photovoltaic module, and cell piece can be that monocrystalline silicon or polysilicon are lined up in length and breadth array by rule, is used for laminating packaging after connecting by welding.Wherein single battery sheet plane of illumination prints one deck silver grating line electrode, and grid line is divided into main grid line and secondary grid line, and wherein the main grid line is relatively wide, but negligible amounts, secondary grid line relative narrower, quantity is more.For example a slice monocrystalline silicon battery TDB125(φ 150) upward main grid line 1.5mm is wide, and quantity is 2, secondary grid line 80-100 μ m, quantity is the 51-54 root.Have some monocrystalline silicon batteries on the complete photovoltaic module, secondary grid line quantity is very many.The place that the front is printed with silver grating line has directly covered sunlight, has directly reduced the actual light-receiving area of photovoltaic cell simultaneously, and this is a factor that affects conversion efficiency of solar cell.

The present defective that exists of solar photovoltaic assembly in sum: 1, the plane of illumination light-receiving area is 1 times of encapsulation cover plate transparency area; 2, the secondary grid line quantity of single battery sheet is a lot of in the assembly, and grid line has directly covered sunlight, thereby has directly reduced the light-receiving area of cell piece.

Summary of the invention

The purpose of this utility model provides a kind of photovoltaic module that the segment array increases light-receiving area that has, assembly is comprised of encapsulation cover plate glass, EVA glued membrane, solar battery sheet, EVA glued membrane, TPT backboard etc., cover-plate glass adopts a kind of ultrawhite pressure glass that the segment array increases light-receiving area that has, and increases light-receiving area.

For achieving the above object, the technical solution adopted in the utility model is as follows: the photovoltaic module with segment array increase light-receiving area of the present utility model, comprise the assembly backboard, be provided with successively on the assembly backboard lower EVA adhesive film, battery lamella, on EVA adhesive film and encapsulation cover plate glassy layer, it is characterized in that: encapsulation cover plate glass glass simultaneously is the plane, the glass another side forms the flower type by several printing opacity cell arrays, and single printing opacity unit is the segment shape.

Segment radius described in the utility model is that SR is 1mm-20mm, and single segment downward projection is φ A circle, and the span of A is 2 mm-40mm.

Adopt a kind of solar energy photovoltaic glass that the segment array increases light-receiving area that has in the utility model, by on the ultra-clear glasses surface colored type being set, single colored type is segment (i.e. the part of a ball), and segment is arranged in length and breadth by rule and formed the segment array, has increased light-receiving area.

Of the present utility model have a solar energy photovoltaic glass 1 that the segment array increases light-receiving area, glass surface be processed with colored type 1 ', thickness of glass is D, flower moldeed depth degree is D1.One side is the plane, another side forms the flower type by several printing opacity cell arrays, single colored type is the segment shape, namely is comprised of by the transverse and longitudinal array several segments, and segment (spheroid) radius is SR, utilize circular arc R 1 transition between two printing opacity unit, flower type cross section projection circular arc chord length is A, and single printing opacity unit---segment downward projection is φ A circle, adopts this kind structure solar energy photovoltaic glass, the plane of illumination surface area increases greatly, and assembly unit are light income increases.

Of the present utility model have solar energy photovoltaic glass 1 above-mentioned each size that the segment array increases light-receiving area and can adjust according to the concrete size of cell piece (comprising monocrystalline silicon, polysilicon etc.), structure (comprising grid line location, spacing, width) etc., is not subjected to that battery sheet gauge lattice limit on the Vehicles Collected from Market;

Production technology with solar energy photovoltaic glass of segment array increase light-receiving area of the present utility model can be softened in glass surface compacting flower type for original sheet glass being carried out secondary heating;

Production technology with solar energy photovoltaic glass of segment array increase light-receiving area of the present utility model can form for the calender calendering, all be carved with corresponding colored type on the stack up-down rollers, glass metal is subjected to the continuously extruded continuously flower type that forms on the glass tape surface of stack during by stack;

Solar energy photovoltaic glass production technology with segment array increase light-receiving area of the present utility model can adopt said method, obtains the flower type but be not limited to said method at lower surface on glass.

Of the present utility model have the segment array and increase that cell piece adopts monocrystalline silicon or polysilicon to be arranged in length and breadth array by rule in the photovoltaic module of light-receiving area, secondary grating spacing is consistent in all cell pieces, spacing is A, when forming array in adjacent two cell pieces direction of secondary grid line be conllinear, another direction spacing is the integer multiple of A.

The utility model utility model provides a kind of photovoltaic module that the segment array increases light-receiving area that has, assembly cover plate sparkling type---segment downward projection diameter A(i.e. two adjacent printing opacity flower type spacings) equate fully with the secondary grating spacing A of cell piece, by corresponding cover-plate glass printing opacity flower type segment quadrantal points directly over the secondary grid line of cell piece after the heated lamination.During the solar light irradiation assembly, light drops between the secondary grid line after reflecting, when using original solar energy photovoltaic glass, the sparkling type is fine and closely woven, and the light of secondary grid line top drops on the grid line photovoltaic module provided by the invention after by glass, when increasing on the solar energy photovoltaic glass of light-receiving area the flower type by having the segment array, drops on the cell piece behind the light refraction light of secondary grid line top, rather than drop on the grid line, improved the utilance of solar energy, Effective Raise photocell conversion efficiency.

Description of drawings

Fig. 1 is the utility model assembly floor map.

Fig. 2 is that the utility model is analysed and observe local enlarged diagram.

Fig. 3 is the front view of solar energy photovoltaic glass of the present utility model.

Fig. 4 is the vertical view of solar energy photovoltaic glass of the present utility model.

Fig. 5 is monocrystalline silicon battery sheet grid line schematic diagram.

Fig. 6 is polycrystalline silicon battery plate grid line schematic diagram.

Fig. 7 is the utility model assembly battery-arrangements schematic diagram.

Fig. 8 is that traditional components is analysed and observe local enlarged diagram.

Fig. 9 is the utility model assembly illumination schematic diagram.

Figure 10 is traditional components illumination schematic diagram.

Embodiment

Photovoltaic module with segment array increase light-receiving area of the present utility model, comprise the assembly backboard, be provided with successively on the assembly backboard lower EVA adhesive film, battery lamella, on EVA adhesive film and encapsulation cover plate glassy layer, it is characterized in that: encapsulation cover plate glass glass simultaneously is the plane, the glass another side forms the flower type by several printing opacity cell arrays, and single printing opacity unit is the segment shape.

Described segment radius is that SR is 1mm-20mm, and single segment downward projection is φ A circle, and the span of A is 2 mm-40mm.

Such as Fig. 1 the utility model assembly floor map, assembly is by being encapsulated in the aluminium frame 6 through the assembly semi-finished product 7 of heated lamination, had the solar energy photovoltaic glass 1, EVA glued membrane 2, single (many) crystal silicon battery 4, TPT backboard 5 etc. that the segment array increases light-receiving area and formed (see Fig. 2 the utility model assembly analyse and observe an innings enlarged drawing) by a kind of through the assembly semi-finished product 7 of heated lamination.

One of parts have solar energy photovoltaic glass 1 Surface Machining that the segment array increases light-receiving area colored type 1 ' (seeing that Fig. 3-4 has solar energy photovoltaic glass flower type master, the vertical view that increases light-receiving area) are arranged in the utility model, thickness of glass D is 3.67mm, and flower moldeed depth degree D1 is 0.67mm.The flower type is comprised of several printing opacity cell arrays, single colored type is the segment shape, segment (spheroid) radius SR is 1.5mm, utilize circular arc R 1 transition between two printing opacity unit, R1 is 0.1mm, flower type cross section projection circular arc chord length A is 2.5mm, single printing opacity unit---segment downward projection is φ A circle, diameter A is 2.5mm, adopt this kind structure solar energy photovoltaic glass, the plane of illumination surface area is analysed and observe with respect to Fig. 8 traditional components and is subjected to surface area to increase by 22.44% in the local enlarged diagram, and assembly unit are light income increases

A kind of in the actual production have the segment array and increase that cell piece adopts monocrystalline silicon or polysilicon to be arranged in length and breadth array by rule in the photovoltaic module of light-receiving area, see Fig. 5 monocrystalline silicon battery sheet grid line schematic diagram, Fig. 6 polycrystalline silicon battery plate grid line schematic diagram, what wider quantity was few is main grid line 8, thinner a fairly large number of be secondary grid line 9, secondary grating spacing is consistent in all cell pieces, and the equal A of spacing is 2.5mm.The cell piece that forms array is seen Fig. 7 the utility model assembly battery-arrangements schematic diagram, secondary grid line conllinear in the horizontal adjacent cell sheet, vertically secondary grating spacing is K in adjacent two cell pieces, wherein K is also ultra-clear glasses 1 printing opacity cell width A of grating spacing A() integer multiple, secondary grating spacing K is 7.5mm in vertical adjacent two cell pieces of actual production, be 3 times of grating spacing A2.5mm, this design can guarantee directly over every grid line as being to have transition wire between the solar energy photovoltaic glass two printing opacity unit that increase light-receiving area.

The utility model utility model provides a kind of photovoltaic module that the segment array increases light-receiving area that has, assembly cover plate glass segment flower type downward projection diameter (comprising two segments flower type centre-to-centre spacing) A is that 2.5mm is that 2.5mm equates fully with the secondary grating spacing A of cell piece, by transition wire between the corresponding cover-plate glass two barriness types directly over the cell piece pair grid line after the heated lamination.During the solar light irradiation assembly, light (is seen Fig. 9 the utility model assembly illumination schematic diagram) by dropping between the secondary grid line after reflecting; When using original solar energy photovoltaic glass, the sparkling type is fine and closely woven, and the light of secondary grid line top drops on the grid line after by glass (sees Figure 10 traditional components illumination schematic diagram).Photovoltaic module provided by the invention, when spending type by having on the solar energy photovoltaic glass that increases light-receiving area, drops on the cell piece behind the light refraction light of secondary grid line top, rather than drop on the grid line, improved the utilance of solar energy, Effective Raise photocell conversion efficiency.

Claims

1. one kind has the photovoltaic module that the segment array increases light-receiving area, comprise the assembly backboard, be provided with successively on the assembly backboard lower EVA adhesive film, battery lamella, on EVA adhesive film and encapsulation cover plate glassy layer, it is characterized in that: encapsulation cover plate glass glass simultaneously is the plane, the glass another side forms the flower type by several printing opacity cell arrays, and single printing opacity unit is the segment shape.

2. according to claim 1 have a photovoltaic module that the segment array increases light-receiving area, and it is characterized in that: described segment radius is that SR is 1mm-20mm, and single segment downward projection is φ A circle, and the span of A is 2 mm-40mm.