CN209515704U - Optical reflection film and its photovoltaic module - Google Patents
Optical reflection film and its photovoltaic module Download PDFInfo
- Publication number
- CN209515704U CN209515704U CN201822244717.7U CN201822244717U CN209515704U CN 209515704 U CN209515704 U CN 209515704U CN 201822244717 U CN201822244717 U CN 201822244717U CN 209515704 U CN209515704 U CN 209515704U
- Authority
- CN
- China
- Prior art keywords
- reflection film
- optical reflection
- layer
- adhesive layer
- width
- 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
Landscapes
- Photovoltaic Devices (AREA)
Abstract
The utility model provides a kind of optical reflection film, including basal layer, microstructured layers, reflective layer and the adhesive layer set gradually, the microstructured layers are the microstructure of the substrate surface several ordered arrangements outstanding, the reflective layer and the adhesive layer are equipped with identical central axes, the basal layer, microstructured layers and reflective layer are equipped with identical width, and the width of the adhesive layer is greater than the width of the reflective layer.Optical reflection film provided by the utility model, structure is simple, and adhesive layer is set on reflective layer, effectively prevent falling off for reflective layer, has good insulation performance；In addition the width of adhesive layer is greater than the width of optical reflection film other parts, convenient for the fixed optical reflection film；Prevent the reflective layer from sliding, touching cell piece causes the phenomenon of short circuit to occur；And increase during installation with the contact area of cell piece, reduce the local pressure of cell piece, effectively evade the risk of cell piece damage.
Description
Technical field
The utility model relates to photovoltaic art more particularly to a kind of optical reflection films and its photovoltaic module.
Background technique
Photovoltaic is one of important form of Solar use, and solar energy power generating can be reduced to non-renewable
Fossil fuel dependence and consumption, it is possible to reduce environmental pollution.In recent years, it is sunny to be based on photovoltaic effect exploitation by researcher
Energy battery, realizes conversion of the solar energy to electric energy, and people have done detailed analysis to non-battery panel region in photovoltaic module and ground
Study carefully, welding is able to achieve the secondary reflection again of incident ray in discovery photovoltaic module, and solar battery passes through welding series connection and realizes electric current
Conducting, but being incident on the high-strength light on welding is mostly positive reflection, is reflected onto outside photovoltaic module, causes luminous energy
Waste.In order to reduce influence of the welding to conversion efficiency of solar cell, the optical energy loss of photovoltaic module is reduced, usually in welding
Upper setting reflective membrane is to promote transfer efficiency.The structure of reflective membrane at present is easy when packaged since the hardness of substrate layer is larger
So that cell piece is cracked, damages cell piece, and reflective layer easily falls off the risk for causing cell piece that short circuit occurs.
Utility model content
In view of this, can evade with good insulation performance and effectively it is necessary to provide a kind of optical reflection film
The risk that cell piece cracks in encapsulation process.
The utility model provides a kind of optical reflection film, including basal layer, microstructured layers, reflective layer and the bonding set gradually
Layer, the microstructured layers are the microstructure of the substrate surface several ordered arrangements outstanding, the basal layer, micro-structure
Layer and reflective layer are equipped with identical width, and the width of the adhesive layer is greater than the width of the reflective layer.
Further, each microstructure is set as identical shapes and sizes, and the microstructure is successively close
It is connected and the distance between adjacent central point of each microstructure is arranged between 5 μm~500 μm.
Further, the cross section of the microstructure is isosceles triangle, the cross-sectional triangle of the microstructure
Base angle be 15 ° -90 °.
Further, using the extending direction of the optical reflection film as main shaft, the microstructure is in the basal layer 10
On extending direction as the longitudinal axis, at least one described longitudinal axis is to be obliquely installed with the main shaft, the main shaft and vertical axis tilt
Angle be 0 °~90 °.
Further, the difference of the width of the width of the adhesive layer and the reflective layer is 0.1mm~20mm.
Further, the basal layer with a thickness of 30 μm~400 μm, the microstructured layers with a thickness of 1 μm~500 μ
M, the reflective layer with a thickness of 1nm~500nm, the adhesive layer with a thickness of 10 μm~500 μm.
Further, the thickness of the adhesive layer is greater than the thickness of the microstructure.
Further, the reflective layer and the adhesive layer are equipped with identical central axes,
A kind of photovoltaic module using the optical reflection film, if including set gradually package board, packaging adhesive film, dry cell
Piece, the optical reflection film, packaging adhesive film and backboard, the optical reflection film is set to the back side of the cell piece, and is located at two
Gap between a cell piece.
Further, the adhesive layer is pasted on the back side of the adjacent cell piece respectively, and is located at the adjacent battery
Gap between piece, the thickness of the adhesive layer are greater than the gap between the adjacent cell piece.
Optical reflection film provided by the utility model, structure is simple, and adhesive layer is set on reflective layer, effectively prevent reflective
Layer falls off, and has good insulation performance；In addition the width of adhesive layer is greater than the width of optical reflection film other parts, in battery
When encapsulation, increase the contact surface with cell piece, be conducive to fixed optical reflection film, reduce stress, effectively evades cell piece damage
Risk.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the optical reflection film in one embodiment of the utility model.
Fig. 2 is the structural schematic diagram of the photovoltaic module of optical reflection film shown in application drawing 1.
Main element symbol description
The following detailed description will be further explained with reference to the above drawings the utility model.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
It should be noted that it can be directly on another component when component is referred to as " being installed in " another component
Or there may also be components placed in the middle.When a component is considered as " being set to " another component, it, which can be, is directly set
Set on another component or may be simultaneously present component placed in the middle.
Unless otherwise defined, all technical and scientific terms used herein are led with the technology for belonging to the utility model
The normally understood meaning of the technical staff in domain is identical.Terminology used in the description of the utility model herein only be
The purpose of description specific embodiment, it is not intended that in limitation the utility model.Term as used herein " and/or " include
Any and all combinations of one or more related listed items.
Referring to Fig. 1, Fig. 1 is the structural schematic diagram of the optical reflection film 100 in one embodiment of the utility model, the light
Reflectance coating 100 is arranged on the encapsulation back of photovoltaic module or the gap at the adjacent cell piece back side, for that will be radiated at battery
The sunlight in piece gap is reflected into solar battery on piece, increases the light total amount of cell piece in photovoltaic module, promotes photovoltaic group
The power of part.The optical reflection film 100 includes basal layer 10, microstructured layers 20, reflective layer 30 and the adhesive layer 40 set gradually.
Material used in the basal layer 10 be polyethylene, polypropylene, polyvinyl chloride, polystyrene, acrylic resin,
The high scores such as phenolic resin, epoxy resin, polyurethane, polycarbonate, polyphenylene oxide, thermoplastic resin, polyimides, polysulfones plastics
One of sub- material or multiple mixed materials.The basal layer 10 with a thickness of 30 μm~400 μm, preferably 30 μm~350 μ
m。
The microstructured layers 20 are made of the microstructure of several ordered arrangements outstanding on the basal layer 10, described
Microstructure is extended continuously on the basal layer 10.Each microstructure is set as identical shapes and sizes, described
Successively the distance between closely coupled and adjacent central point of each microstructure is arranged in 5 μm~500 μ microstructure
Between m, preferably 10 μm~400 μm.In the present embodiment, the microstructure is prepared by pressure sensitive adhesive or uv-curable glue
It forms, the microstructure mainly includes rubber-type, thermoplastic elastomer (TPE) class, polyacrylate, organic silicon, polyurethanes
One of adhesive or multiple mixed materials.The microstructure is triangular prism shape, the height of the triangular prism is 1 μm~
500 μm, preferably 1 μm~400 μm, the cross section of the triangular prism is isosceles triangle, and the base angle of the isosceles triangle is
15 °~90 °, preferably 30 °~90 °.In other embodiments, the microstructure is triangular prism shape, the triangular prism
Top be arcuate structure.Using the extending direction of the optical reflection film as main shaft, the microstructure is in the basal layer 10
On extending direction as the longitudinal axis, at least one described longitudinal axis is to be obliquely installed with the main shaft, in the present embodiment, described
The angle of main shaft and vertical axis tilt is 0 °~90 °.
The reflective layer 30 is metal made of the methods of vacuum evaporation, magnetron sputtering, vacuum sputtering or galvanoplastic
Film layer, in the present embodiment, the metal are the one such or multiple mixed materials such as aluminium, silver, chromium, nickel, described reflective
Layer 30 with a thickness of 1nm~500nm.
The adhesive layer 40 includes adhesive, and the adhesive layer 40 is used to the optical reflection film 100 being fixed on photovoltaic group
In the encapsulation back of part or the gap at the cell piece back side.The thickness of the adhesive layer 40 is set as 10 μm~500 μm, preferably
20 μm~400 μm, the thickness of the adhesive layer 40 is greater than the thickness of the microstructure.It hangs down with the optical reflection film extending direction
Straight direction is width direction, and the basal layer 10, microstructured layers 20 and reflective layer 30 are equipped with identical width, the adhesive layer
40 width is greater than the width of the reflective layer 30, specially 0.1mm~20mm, preferably 0.5mm~18mm.The adhesive layer
The width that 40 width is set greater than the reflective layer 30 is mainly used for increasing bond area, convenient for the fixed light reflection
Film prevents the reflective layer 30 from sliding, touch cell piece cause short circuit phenomenon occur, and during installation increase with
The contact area of cell piece reduces the local pressure of cell piece, effectively evades the risk of cell piece damage.The adhesive layer 40 with
The microstructured layers 20 central axes having the same, the specially described adhesive layer 40 are symmetrically disposed on the microstructured layers 20,
Width of the both sides of the adhesive layer 40 beyond the reflective layer 30 is equal.Material used in the adhesive layer 40 includes ethylene second
One of vinyl acetate copolymer (EVA), ethylene ethyl acrylate (EEA) and ethylene octene copolymer (POE) are a variety of mixed
Condensation material.The adhesive layer 40 has good insulating properties and translucency, and sunlight is after the adhesive layer 40 through described anti-
Photosphere 30 is irradiated to the transfer efficiency for increasing cell piece on cell piece after reflecting.
Referring to Fig. 2, the utility model also provides a kind of photovoltaic module 101 using above-mentioned optical reflection film 100, the light
Volt component 101 includes the package board 102 set gradually, packaging adhesive film 103, several cell pieces 104, the optical reflection film 100, envelope
Fill glue film 105 and backboard 106.In the present embodiment, the optical reflection film 100 is set to the back side of the cell piece 104,
And be located at the gap between two cell pieces 104, the width of the optical reflection film be greater than two cell pieces 104 it
Between width.Sunlight reflexes on the cell piece 104 through the optical reflection film 100, increases the light of the cell piece 104
Area, and then promote the transfer efficiency of the photovoltaic module 101.
Optical reflection film provided by the utility model, structure is simple, and adhesive layer is set on reflective layer, effectively prevent reflective
Layer falls off, and has good insulation performance；In addition the width of adhesive layer is greater than the width of optical reflection film other parts, in battery
When encapsulation, increase the contact surface with cell piece, be conducive to fixed optical reflection film, reduce stress, effectively evades cell piece damage
Risk.
Those skilled in the art it should be appreciated that more than embodiment be intended merely to illustrate that this is practical new
Type, and be not used as the restriction to the utility model, as long as implementing in the spirit of the utility model to above
Suitably change and change made by mode and all falls in the range of the requires of the utility model protection.
Claims (10)
1. a kind of optical reflection film, it is characterised in that: including basal layer, microstructured layers, reflective layer and the adhesive layer set gradually, institute
State microstructured layers be the substrate surface several ordered arrangements outstanding microstructure, the basal layer, microstructured layers and
Reflective layer is equipped with identical width, and the width of the adhesive layer is greater than the width of the reflective layer.
2. optical reflection film as described in claim 1, it is characterised in that: each microstructure be set as identical shape and
Size, the distance between adjacent central point of each microstructure are arranged between 5 μm~500 μm.
3. optical reflection film as described in claim 1, it is characterised in that: the cross section of the microstructure is isosceles triangle,
The base angle of the cross-sectional triangle of the microstructure is 15 ° -90 °.
4. optical reflection film as described in claim 1, it is characterised in that: using the extending direction of the optical reflection film as main shaft,
For extending direction of the microstructure on the basal layer as the longitudinal axis, at least one described longitudinal axis and the main shaft are inclination
The angle of setting, the main shaft and vertical axis tilt is 0 °~90 °.
5. optical reflection film as described in claim 1, it is characterised in that: the width of the width of the adhesive layer and the reflective layer
Difference be 0.1mm~20mm.
6. optical reflection film as described in claim 1, it is characterised in that: the basal layer with a thickness of 30 μm~400 μm, it is described
Microstructured layers with a thickness of 1 μm~500 μm, the reflective layer with a thickness of 1nm~500nm, the adhesive layer with a thickness of 10 μ
M~500 μm.
7. optical reflection film as described in claim 1, it is characterised in that: the thickness of the adhesive layer is greater than the microstructure
Thickness.
8. optical reflection film as described in claim 1, it is characterised in that: the reflective layer and the adhesive layer are equipped in identical
Axis.
9. a kind of photovoltaic module using the optical reflection film as described in claim 1-8 any one, it is characterised in that: including successively
Package board, packaging adhesive film, several cell pieces, the optical reflection film, packaging adhesive film and the backboard of setting, the optical reflection film are set
It is placed in the back side of the cell piece, and the gap between the adjacent cell piece.
10. photovoltaic module as claimed in claim 9, it is characterised in that: the adhesive layer is pasted on the adjacent battery respectively
The thickness at the back side of piece, and the gap between the adjacent cell piece, the adhesive layer is greater than the adjacent cell piece
Between gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822244717.7U CN209515704U (en) | 2018-12-28 | 2018-12-28 | Optical reflection film and its photovoltaic module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822244717.7U CN209515704U (en) | 2018-12-28 | 2018-12-28 | Optical reflection film and its photovoltaic module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209515704U true CN209515704U (en) | 2019-10-18 |
Family
ID=68198357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822244717.7U Active CN209515704U (en) | 2018-12-28 | 2018-12-28 | Optical reflection film and its photovoltaic module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209515704U (en) |
-
2018
- 2018-12-28 CN CN201822244717.7U patent/CN209515704U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106449840B (en) | A kind of photovoltaic module reflectance coating and photovoltaic module | |
| CN106449841B (en) | A kind of photovoltaic reflectance coating and photovoltaic module | |
| CN110660876A (en) | Reflective film for photovoltaic module | |
| WO2018107999A1 (en) | Photovoltaic module | |
| CN209515704U (en) | Optical reflection film and its photovoltaic module | |
| CN113644156A (en) | Two-sided reflection of light photovoltaic solder strip and photovoltaic module | |
| KR20100071246A (en) | Solar cell module | |
| CN209150134U (en) | A kind of reflective membrane improving photovoltaic conversion efficiency | |
| US20160064589A1 (en) | Solar cell module | |
| CN106601848A (en) | Crystalline silicon photovoltaic module | |
| CN206301821U (en) | A kind of photovoltaic module reflectance coating and photovoltaic module | |
| TW201121075A (en) | Solar light-control module | |
| CN208596683U (en) | A kind of tightly packed type reflective membrane of photovoltaic module plane | |
| CN210073873U (en) | Battery backboard | |
| CN209183564U (en) | Photovoltaic module reflective membrane | |
| JP2013115216A (en) | Solar cell backside sheet and solar cell module | |
| JP6086778B2 (en) | Solar cell prism member and solar cell module | |
| WO2020133283A1 (en) | Light reflecting film and photovoltaic assembly thereof | |
| CN208315576U (en) | Multistage enhancing gain film for photovoltaic module string spacing, piece spacing and welding | |
| CN206301823U (en) | A kind of photovoltaic reflectance coating and photovoltaic module | |
| CN111403535A (en) | Light reflection film and photovoltaic module | |
| CN209515703U (en) | Optical reflection film and photovoltaic module | |
| CN111384193A (en) | Light reflection film and photovoltaic module thereof | |
| CN205609537U (en) | Battery piece among solar energy component | |
| EP3747054A1 (en) | Solar cell module |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230523 Address after: No. 99, Tongren Road, Nantong Economic and Technological Development Zone, Jiangsu Province, 226015 Patentee after: ZHONGTIAN PHOTOVOLTAIC MATERIALS Co.,Ltd. Address before: 226009 No. 3 Tiantian Road, Nantong Development Zone, Jiangsu Province Patentee before: ZHONGTIAN TECHNOLOGY ADVANCED MATERIALS Co.,Ltd. Patentee before: JIANGSU ZHONGTIAN TECHNOLOGY Co.,Ltd. |
|
| TR01 | Transfer of patent right |