CN204204887U - A kind of photovoltaic reflective membrane with discontinuity insulation - Google Patents
A kind of photovoltaic reflective membrane with discontinuity insulation Download PDFInfo
- Publication number
- CN204204887U CN204204887U CN201420727734.5U CN201420727734U CN204204887U CN 204204887 U CN204204887 U CN 204204887U CN 201420727734 U CN201420727734 U CN 201420727734U CN 204204887 U CN204204887 U CN 204204887U
- Authority
- CN
- China
- Prior art keywords
- reflective membrane
- base material
- layer
- adhered layer
- photovoltaic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/52—PV systems with concentrators
Abstract
The utility model discloses a kind of photovoltaic reflective membrane with discontinuity insulation, relate to the photovoltaic module parts technical field with reflex reflector.Comprise reflector layer, base material and adhered layer, adhered layer is pasted onto on the photovoltaic welding belt in solar battery sheet front, and the upper surface of base material is arranged at intervals with reflector layer, and the lower surface of base material is arranged at intervals with adhered layer, reflector layer and adhered layer are corresponding up and down to be arranged, and the material of base material is insulating material; The part in reflective membrane with reflector layer, base material and adhered layer three-decker forms reflective main body, and the part only in reflective membrane with matrix structure forms insulating body.The utility model can prevent the generation of short-circuit risks between adjacent cell sheet, can reduce reflective membrane gauge simultaneously, improves light utilization efficiency and component power output.
Description
Technical field
The utility model relates to the photovoltaic module parts technical field with reflex reflector.
Background technology
Current photovoltaic module mainly adopts welding cell piece to be carried out serial connection and completes component power and export, but blocks because conventional photovoltaic welding has cell piece sensitive surface, and shading-area can reach the 1%-4% of cell area, affect component power output.
For this purpose, the reflective membrane of some composite constructions is developed in the market.Reflective membrane Pasting realizes reflecting effect on photovoltaic welding belt, increases power stage by increasing the absorption of battery to light.Its operation principle is: sunlight incides reflective membrane surface through glass, on reflective membrane surface, total reflection occurs, light reflexes to photovoltaic glass lower surface, and light reflexes on cell piece by lower glass surface again, which reduce the loss of light at welding place, power stage can be increased at 1%-4%.
Patent CN 202977482 U discloses a kind of photovoltaic light reflecting membrane, and this light reflecting membrane is provided with adhesive linkage, base material and reflector layer from top to bottom, can increase component power and export.Reflector layer surface is zigzag, arc or V-arrangement, and material is silver or aluminium.Base material is PET, PVDF or aluminium foil.Tack coat is industrial glue or two-sided tape.Tack coat is pasted onto on the welding in solar battery sheet front, and the light of directive light reflecting membrane is finally reflexed to battery surface, can increase power stage.
All combined by hot pressing mode by adhesive linkage between reflective membrane and welding described in this patent, adhered layer designed is at present planar structure, and the coat of metal of photovoltaic welding belt is not presented planar structure by plating in coating process under surface tension, but present coating convex surface.If existing reflective membrane adhesive linkage and welding plated surface layer adhesion, then contact area is less, reflective membrane is not easy to paste completely with welding surface, easily cause and paste uneven or be pasted not strongly and occur fold, the defect such as uneven, especially after component lamination, reflective membrane is thinner, and it may present convex surface on welding surface, greatly can affect the reflecting effect of reflecting film material like this, affect power stage.
If this light reflecting membrane whole piece is pasted in battery strings simultaneously, namely a whole piece reflective membrane is all posted in cell piece front welding and cell piece gap.When light reflecting membrane is pasted on battery strings surface, the light reflecting membrane between adjacent cell sheet, cell gap posted does not play main reflection action, mainly be convenient to pad pasting and naturally two cell pieces be connected, because light reflecting membrane top layer is metal level, there is risk in the insulating properties of assembly in Long-Time Service between two cell pieces, if insulating properties process is bad, assembly occurs that reflective membrane ruptures in using, and upper surface is the short circuit that the light reflecting membrane of metal level may cause assembly.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of photovoltaic reflective membrane with discontinuity insulation, can prevent the generation of short-circuit risks between adjacent cell sheet, can reduce reflective membrane gauge simultaneously.
For solving the problems of the technologies described above, technical solution adopted in the utility model is: a kind of photovoltaic reflective membrane with discontinuity insulation, comprise reflector layer, base material and adhered layer, adhered layer is pasted onto on the photovoltaic welding belt in solar battery sheet front, the upper surface of base material is arranged at intervals with reflector layer, the lower surface of base material is arranged at intervals with adhered layer, and reflector layer and adhered layer are corresponding up and down to be arranged, and the material of base material is insulating material; The part in reflective membrane with reflector layer, base material and adhered layer three-decker forms reflective main body, and the part only in reflective membrane with matrix structure forms insulating body.
Preferably, adhered layer lower surface configuration is: the concave surface matched with photovoltaic welding belt surface texture.
Preferably, insulating body is positioned at position between adjacent solar battery sheet, and the length of insulating body is equal with adjacent solar battery distance between commutator segments, and length is 1mm-8mm.
The beneficial effect adopting technique scheme to produce is:
(1) the utility model reflective membrane structure is provided with discontinuity insulation, is divided into reflective main body and insulating body two parts.Be different from other reflective membrane structures, its insulating body can prevent the risk of short circuit between adjacent cell sheet.
(2) design of adjacent cell lamination insulation main body can reduce the requirement to the reflective main part integral thickness of reflective membrane, reduces the inefficacy that assembly causes because of reflective membrane thickness problem.
(3) between adjacent cell sheet, the design of reflective membrane insulating body can prevent the cell piece stress because causing when reflective membrane is stretched tight.
(4) concave design of reflective main body adhered layer structure can make reflective membrane tile on photovoltaic welding belt surface, ensures that reflective membrane is pasted evenly, and not easily occurs fold.Reflector layer can be made to be horizontal state, to ensure that sunlight better reflects at reflector layer like this, improve light utilization efficiency and component power output.
(5) after the optimization of reflective main body adhered layer structure can make reflective membrane paste, the concave structure of adhered layer can prevent assembly in the later stage is run because of with welding residual adhesion and reflective membrane and welding are departed from.The laminating of adhered layer concave structure and welding coating convex configuration, controls the space between reflective membrane and welding, can prevent the stress of reflective membrane and welding binding site from concentrating, and prevents material impaired or distortion in long-term ageing.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail;
Fig. 1 is schematic top plan view of the present utility model;
Fig. 2 is schematic front view of the present utility model;
Fig. 3 is that schematic diagram is looked on a left side of the present utility model;
Fig. 4 is the structural representation that the utility model is pasted onto on the welding in solar battery sheet front;
In figure, 1, reflective main body; 2, insulating body; 3, reflector layer; 4, base material; 5, adhered layer; 6, concave surface; 7, photovoltaic welding belt.
Embodiment
Embodiment 1
A kind of photovoltaic reflective membrane with discontinuity insulation, see shown in Fig. 1,2 and 3, comprise reflector layer 3, base material 4 and adhered layer 5, adhered layer 5 is pasted onto on the photovoltaic welding belt 7 in solar battery sheet front, the upper surface of base material 4 is arranged at intervals with reflector layer 3, the lower surface of base material 4 is arranged at intervals with adhered layer 5, and reflector layer 3 and adhered layer about 5 correspondence are arranged, and the material of base material 4 is insulating material.
Reflective membrane is divided into reflective main body 1 and insulating body 2 two parts.The part in reflective membrane with reflector layer 3, base material 4 and adhered layer 5 three-decker forms reflective main body 1, and the part only in reflective membrane with base material 4 structure forms insulating body 2.Insulating body 2 is positioned at position between adjacent solar battery sheet, and the length of insulating body 2 is equal with adjacent solar battery distance between commutator segments, and length is 1mm-8mm.
Reflective membrane divides in order to reflective main body 1 and insulating body 2 two parts.And existing reflective membrane only has reflective main body, namely a whole piece reflective membrane (reflective membrane between two cell pieces does not paste with welding) is all posted in cell piece front welding and cell piece gap.When reflective membrane is pasted on battery strings surface, the reflective membrane between adjacent cell sheet, cell gap posted does not play main reflection action, mainly be convenient to pad pasting and naturally two cell pieces be connected, but its insulation property are extremely important to assembly property, if insulating properties process is bad, upper surface is the short circuit that the reflective membrane of metal level may cause assembly.Therefore this reflective membrane devises insulating body 2, so not only can prevent assembly in Long-Time Service process, because of the short circuit that reflective membrane causes between adjacent cell sheet, can reduce reflective membrane gauge simultaneously.
Reflector layer 3 can realize the reflecting effect of reflective membrane, and surface mostly is zigzag, also can be arc or V-arrangement.Reflector layer 3 material is aluminium, nickel, silver or other there is the reflecting coating of high reflectance, reflector layer 3 thickness is that 0.001mm to 0.5mm is adjustable.
Base material 4 mainly plays a supportive role, and material includes but not limited to polypropylene, polyvinyl chloride, polyester, multiple copolymer etc., not containing metal material and other electric conducting materials.Thickness is 0.03mm to 0.4mm, and width is 1mm to 5mm.
Adhered layer 5 lower surface configuration is: the concave surface 6 matched with photovoltaic welding belt 7 surface texture.Adhered layer 5 thickness is 0.025mm to 0.25mm.Material includes but not limited to EVA, PO, PP, organosilicon.Existing photovoltaic welding belt comprises sandwich layer and the coat of metal, and metal coating surface is not planar structure, but has certain convex configuration.Adhered layer 5 lower surface configuration is designed to the concave surface 6 matched with photovoltaic welding belt 7 surface texture, adhered layer 5 and photovoltaic welding belt 7 can be made to there is not space therebetween, better plane-plane contact, realize the optimization of reflective membrane and welding barbola work, prevent reflective membrane because paste uneven or be pasted not strongly and occur fold, the defect such as uneven, realize the optimization of reflecting effect and the maximum lift of power.
Reflector layer 3 and base material 4 are combined by modes such as evaporation, sputter coating, plating, chemical plating or calenderings.
Base material 4 and adhered layer 5 are combined by roller coating, spraying, bonding method.
Combine mainly through hot pressing mode between adhered layer 5 and photovoltaic welding belt 7, its hot pressing temperature is at 0 DEG C to 200 DEG C.
This reflective membrane can prevent the generation of short-circuit risks between adjacent cell sheet, can reduce reflective membrane gauge simultaneously, improves light utilization efficiency and component power output, is suitable for applying.
Claims (3)
1. one kind has the photovoltaic reflective membrane of discontinuity insulation, comprise reflector layer (3), base material (4) and adhered layer (5), adhered layer (5) is pasted onto on the photovoltaic welding belt (7) in solar battery sheet front, it is characterized in that: the upper surface of described base material (4) is arranged at intervals with reflector layer (3), the lower surface of base material (4) is arranged at intervals with adhered layer (5), reflector layer (3) and adhered layer (5) are corresponding up and down to be arranged, and the material of base material (4) is insulating material; The part in reflective membrane with reflector layer (3), base material (4) and adhered layer (5) three-decker forms reflective main body (1), and the part only in reflective membrane with base material (4) structure forms insulating body (2).
2. a kind of photovoltaic reflective membrane with discontinuity insulation according to claim 1, is characterized in that described adhered layer (5) lower surface configuration is: the concave surface (6) matched with photovoltaic welding belt (7) surface texture.
3. a kind of photovoltaic reflective membrane with discontinuity insulation according to claim 1, it is characterized in that described insulating body (2) is positioned at position between adjacent solar battery sheet, the length of insulating body (2) is equal with adjacent solar battery distance between commutator segments, and length is 1mm-8mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420727734.5U CN204204887U (en) | 2014-11-28 | 2014-11-28 | A kind of photovoltaic reflective membrane with discontinuity insulation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420727734.5U CN204204887U (en) | 2014-11-28 | 2014-11-28 | A kind of photovoltaic reflective membrane with discontinuity insulation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204204887U true CN204204887U (en) | 2015-03-11 |
Family
ID=52662811
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420727734.5U Active CN204204887U (en) | 2014-11-28 | 2014-11-28 | A kind of photovoltaic reflective membrane with discontinuity insulation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204204887U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106206823A (en) * | 2016-08-26 | 2016-12-07 | 江苏东鋆光伏科技有限公司 | A kind of reflective membrane for improving cell piece generated output and preparation method thereof |
-
2014
- 2014-11-28 CN CN201420727734.5U patent/CN204204887U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106206823A (en) * | 2016-08-26 | 2016-12-07 | 江苏东鋆光伏科技有限公司 | A kind of reflective membrane for improving cell piece generated output and preparation method thereof |
| CN106206823B (en) * | 2016-08-26 | 2017-07-14 | 江苏东鋆光伏科技有限公司 | It is a kind of to be used to improve reflective membrane of cell piece generated output and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105789359A (en) | Manufacturing method for double-face solar energy cell assembly | |
| CN102751344A (en) | Photovoltaic reflecting thin-film | |
| CN102623553A (en) | Preparation method of solar cell assembly | |
| CN110416320A (en) | A kind of no main grid photovoltaic module | |
| CN206976368U (en) | A kind of printing opacity flexible photovoltaic component | |
| CN209561432U (en) | A kind of completely black solar double-glass assemblies of back-contact | |
| CN104733563B (en) | The preparation method of long-life flexible solar battery pack | |
| CN203300669U (en) | Curved-surface solar cell module | |
| CN207217554U (en) | A kind of double glass lamination photovoltaic modulies with moon dental structure | |
| CN204204887U (en) | A kind of photovoltaic reflective membrane with discontinuity insulation | |
| CN105207605A (en) | Reflective photovoltaic (PV) module | |
| CN206040654U (en) | Many main grids double -faced solar cell subassembly | |
| CN209328922U (en) | A kind of reflective glue film, Reflecting backboard and photovoltaic module | |
| CN101728460B (en) | Solar battery for solar mobile phone battery and preparation method thereof | |
| CN102709371A (en) | Solder strip structure for solar cell module | |
| WO2023016582A1 (en) | Photovoltaic cell string and manufacturing method therefor, string soldering device, and photovoltaic assembly | |
| CN202977482U (en) | Photovoltaic reflection film | |
| CN110518077A (en) | A kind of solar battery sheet and photovoltaic module | |
| CN212257417U (en) | Photovoltaic module | |
| CN203589056U (en) | Double-faced solar photovoltaic assembly | |
| CN203277440U (en) | Solar cell back film | |
| CN207425873U (en) | A kind of double side photovoltaic battery component | |
| CN207602586U (en) | A kind of high solar double-glass assemblies of light utilization ratio | |
| CN205657069U (en) | Reflection of light enhancement mode solar PV modules | |
| CN206961853U (en) | A kind of heterojunction solar battery module |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |