Solar cell paddle sun-shading louver
Technical field
The utility model relates to a kind of sun-shading louver that utilizes solar electrical energy generation, particularly a kind of blade, and directly to adopt aluminium alloys be the solar cell paddle sun-shading louver that base material and TCO film (Transparent Conductive Oxide conductive oxide film) form amorphous silicon thin-film solar cell.Its blade also can be applicable to the sun-shading louver in indoor or double-layer curtain wall.
Background technology
Exhaustion day by day along with world's fossil energy; energy crisis highlights day by day; environment pollution goes from bad to worse; clean energy resource is all being found in countries in the world; solar electrical energy generation is as a kind of natural energy resource; with its reserves, abundant and nonstaining property has shown the advantage that it is unique, by internationally recognized be one of the emulative clean energy resource of tool in future.Amorphous silicon thin-film solar cell is a kind of thin-film solar cells of non-crystalline silicon compound as stock composition of take, on the substrate surfaces such as glass, corrosion resistant plate, ceramic wafer, flexible plastic sheet, by physics or chemical plating method, plate uniformly the assembly that the conductive oxide film of layer of transparent forms.Be easy to large areaization and produce, cost is lower, is suitable for producing in enormous quantities.
Build the large area space that visual position has occupied building, existing solar energy sunshade blinds product, the main crystal silicon solar energy battery that adopts, product is arranged on the outdoor of building, affected to a certain extent the daylighting effect of building and looked effect outward, crystal silicon solar energy battery needs good daylighting environment, and cannot be applied to indoor.The problems such as type application that the applicant once existed for existing solar cell is limited, the single backwardness of control mode, poor stability, space availability ratio are low, designing patent announcement number is CN 202047738 U " solar electrical energy generation sun-shading louver curtain ", comprise the casing with controller and transmission device, the blade fitting together by rope and guiding ladder rope and casing, and on blade, adopt the integrated solar cell of monocrystalline silicon, polysilicon and flexible amorphous silicon film.But be subject to the restriction of structure and manufacturing process, crystalline silicon sun-shading louver blade specification is single, and blinds can not exist local shade to block in usage space, and the intensity of flexible amorphous silicon louver vane is lower, and manufacturing cost is higher.The sunlight that the applicant also exists for existing solar energy sunshade curtain is blocked rear generating efficiency to be reduced, there is no tensioning equipment, abat vent swings with the wind, produce noise, affect decorative effect, and cannot be applied to outdoor defect, designing patent announcement number is CN 202249686 U " hull cell solar electrical energy generation outer sun-shading curtain ", because it is to be mainly used in outdoor a kind of flexible amorphous silicon film solar cell, its braced structures can not pack up and hide, therefore the outdoor whole structure of impact building, outdoor mounted is also unfavorable for the cleaning of solar cell.
Utility model content
The purpose of this utility model is to provide a kind of solar cell paddle sun-shading louver, solved the problem that existing solar cell cannot large area indoor location, its reasonable in design, manufacturing process is ripe, steady quality is reliable, significantly improve blade strength, widen the scope of application, cost is low, and generating efficiency is high.
The technical scheme that the utility model adopts is: this solar cell paddle sun-shading louver comprises the casing with controller and transmission device, the blade fitting together by rope and guiding ladder rope and casing, its technical essential is: described blade adopts arc-shaped aluminum alloy profile as base material, at the base material upper surface with guide line hole, rope hole, insulating layer is set; On insulating layer, combining to have utilizes green laser incising to be divided into the aluminum membranous layer of separate part as the back electrode of several cells; On back electrode, order arranges the PIN layer unijunction solar cell that P type amorphous silicon layer, I type amorphous silicon layer and N-type amorphous silicon layer form generation photogenerated current and photovoltage successively, on the PIN of unijunction solar cell layer, attach after TCO rete, utilize green laser incising to be divided into the separate part identical with back electrode quantity and form internal series-connection several cells together, form amorphous silicon thin-film solar cell blade; The electric current of battery is drawn from TCO rete and aluminum membranous layer respectively.
On described amorphous silicon thin-film solar cell blade, the inside wall in rope hole is welded with solar cell wire.
Advantage and the good effect that the utlity model has are: because the utility model is directly usingd arc-shaped aluminum alloy profile as base material, and with the isolation of insulation level, combination utilizes green laser incising to be divided into the aluminum membranous layer of separate part as the back electrode of several cells, to produce on the PIN layer of unijunction solar cell of photogenerated current and photovoltage, attach TCO rete, utilize green laser incising to be divided into the separate part identical with back electrode quantity and form internal series-connection several cells together, form amorphous silicon thin-film solar cell blade, amorphous silicon thin-film solar cell blade pass is crossed to guiding ladder rope, rope, guide line and casing fit together, form solar energy sunshade blinds, so compare with the applicant's formerly patent " solar electrical energy generation sun-shading louver ", its reasonable in design, manufacturing process is ripe, steady quality is reliable, cost is low, significantly improve blade strength.Because its blade also can be applicable to the sun-shading louver in indoor or double-layer curtain wall, therefore widened the scope of application of blade.
Operating principle and the monocrystalline silicon battery of amorphous silicon thin-film solar cell are similar, are all to utilize semi-conductive photovoltaic effect to realize opto-electronic conversion.Different from monocrystalline silicon battery, amorphous silicon battery photo-generated carrier only has drift motion and without diffusion motion, the diffusion length of carrier is very short.If generation place of photo-generated carrier or near there is no electric field, photo-generated carrier is subject to the restriction of diffusion length, will be very fast compound and can not absorb.For effectively collecting photo-generated carrier, design cells into the type into PIN, wherein P layer is incident photosphere, I layer is Intrinsic Gettering layer, is in the built in field of P and N generation.When incident light enters after I layer by P+ layer, produce electron-hole pair, once photo-generated carrier is just separated by built in field after producing, hole drift is to P+ limit, electronics drift, to N limit, forms photogenerated current and photovoltage.Therefore, the utility model has solved the problem that existing solar cell cannot large area indoor location, and the solar electrical energy generation product of the high and low cost of a kind of generating efficiency is provided.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is further described.
Fig. 1 is a kind of perspective view of the present utility model;
Fig. 2 is a kind of structural representation of solar cell paddle in Fig. 1;
Fig. 3 is that Fig. 2 is along the sectional view of A-A line;
Fig. 4 is the local delamination structural perspective of solar cell paddle cross section in Fig. 3.
Sequence number explanation in figure: 1 solar cell paddle, 2 guide line holes, 3 rope holes, 4 ropes, 5 casings, 6 guiding ladder ropes, 7 solar cell wires, 8 base materials, 9 insulating layers, 10 aluminum membranous layers, 11 P type amorphous silicon layers, 12 I type amorphous silicon layers, 13 N-type amorphous silicon layers, 14 TCO retes.
The specific embodiment
According to Fig. 1~4, describe implementation method of the present utility model in detail.This solar cell paddle sun-shading louver comprises the casing 5 with controller and transmission device (not shown), the parts such as blade that fit together by rope 4 and guiding ladder rope 6 and casing 5.Its Leaf adopts arc-shaped aluminum alloy profile as base material 8, at base material 8 upper surfaces with guide line hole 2, rope hole 3, insulating layer 9 is set.On insulating layer 9, combination has aluminum membranous layer 10 back electrodes as several cells that utilize green laser incising to be divided into separate part; On back electrode, order arranges P type amorphous silicon layer 11, I type amorphous silicon layer 12 and N-type amorphous silicon layer 13 solar cells successively.On the PIN of unijunction solar cell layer, attach after TCO rete 14, utilize green laser incising to be divided into the separate part identical with back electrode quantity and form internal series-connection several cells together, form amorphous silicon thin-film solar cell blade 1.The electric current of amorphous silicon thin-film solar cell is drawn from TCO rete 14 and aluminum membranous layer 10 respectively.On amorphous silicon thin-film solar cell blade 1, the inside wall in rope hole is welded with solar cell wire.
During concrete making, the aluminium alloy extrusions as base material 8 is processed to guide line hole 2 and rope hole 3, then aluminium alloy extrusions is processed into arc, produce the aluminium alloy vane base material 8 that meets designing requirement.
The aluminium alloy vane base material 8 machining is put into special cleaning machine and automatically clean, form a layer insulating 9 on aluminium alloy vane base material 8, on insulating layer, aluminium plating membrane 10, form the back electrode of battery, to increase the absorption of solar cell to light.According to predetermined live width and with the distance between centers of tracks of (a-Si) non-crystalline silicon line of cut, with green laser, aluminium film is delineated into separate part, object is that whole aluminium film is divided into the back electrode of several cells, and then realizes the internal series-connection of whole several batteries of plate.
Then on back electrode, sequentially carry out successively respectively the making of P type amorphous silicon layer 11, I type amorphous silicon layer 12, N-type amorphous silicon layer 13.In the PIN layer top forming, attach one deck TCO rete 14, according to blinds model width, with special-purpose laser scribing machine, saturating TCO rete 14 is carried out to laser grooving and scribing (etching), 14 line of TCO rete are cut apart, object is that whole plate is divided into some, as the electrode of several cells.According to the distance between centers of tracks of TCO rete 14 lines of cut, with green laser, amorphous silicon layer delineation is worn, object is to allow back electrode (aluminum membranous layer 10) by being connected with front electrode, realizes whole plate and is formed by several cell internal series-connections again.
By above-mentioned each procedure, amorphous silicon thin-film solar cell blade 1 has formed, then carries out I-V test, to obtain each performance parameter of cell panel, judges that whether certain procedure goes wrong, and is convenient to improve the quality of battery.
In order to strengthen protection, can on the solar cell paddle 1 completing, paste PVC diaphragm (not shown), then at the rope hole of blade one side 3 side welding solar cell wires 7.
Solar energy louver vane 1 after completing is grouped together by rope 4 and guiding ladder rope 6, then forms solar cell paddle sun-shading louver product with casing 5.