CN102214716A - Photovoltaic module and manufacturing method thereof - Google Patents
Photovoltaic module and manufacturing method thereof Download PDFInfo
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- CN102214716A CN102214716A CN2011101502567A CN201110150256A CN102214716A CN 102214716 A CN102214716 A CN 102214716A CN 2011101502567 A CN2011101502567 A CN 2011101502567A CN 201110150256 A CN201110150256 A CN 201110150256A CN 102214716 A CN102214716 A CN 102214716A
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- 238000004519 manufacturing process Methods 0.000 title abstract description 4
- 239000000758 substrate Substances 0.000 claims abstract description 37
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000002313 adhesive film Substances 0.000 claims abstract description 14
- 238000007789 sealing Methods 0.000 claims abstract description 14
- 229920005549 butyl rubber Polymers 0.000 claims abstract description 11
- 239000000499 gel Substances 0.000 claims abstract description 3
- 239000005341 toughened glass Substances 0.000 claims description 62
- 239000012528 membrane Substances 0.000 claims description 53
- 238000003475 lamination Methods 0.000 claims description 14
- 239000000741 silica gel Substances 0.000 claims description 14
- 229910002027 silica gel Inorganic materials 0.000 claims description 14
- 238000002360 preparation method Methods 0.000 claims description 11
- 239000002390 adhesive tape Substances 0.000 claims description 10
- 238000002834 transmittance Methods 0.000 claims description 8
- 239000000853 adhesive Substances 0.000 claims description 5
- 230000001070 adhesive effect Effects 0.000 claims description 5
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 14
- 229910052782 aluminium Inorganic materials 0.000 abstract description 14
- 239000011521 glass Substances 0.000 abstract description 13
- 230000035939 shock Effects 0.000 abstract description 3
- 239000000377 silicon dioxide Substances 0.000 abstract 1
- 238000005452 bending Methods 0.000 description 29
- 238000000034 method Methods 0.000 description 14
- 239000004411 aluminium Substances 0.000 description 12
- 230000000052 comparative effect Effects 0.000 description 8
- 238000010030 laminating Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 8
- 238000012360 testing method Methods 0.000 description 7
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- 238000006243 chemical reaction Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000013467 fragmentation Methods 0.000 description 2
- 238000006062 fragmentation reaction Methods 0.000 description 2
- 238000013003 hot bending Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000013084 building-integrated photovoltaic technology Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000012536 packaging technology Methods 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
- H01L31/042—PV modules or arrays of single PV cells
- H01L31/048—Encapsulation of modules
- H01L31/0488—Double glass encapsulation, e.g. photovoltaic cells arranged between front and rear glass sheets
-
- 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
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- Condensed Matter Physics & Semiconductors (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
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- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Photovoltaic Devices (AREA)
Abstract
The invention provides a photovoltaic module and a manufacturing method thereof. The photovoltaic module comprises a substrate and a sealing part which is sealed at one side edge of the substrate, wherein the substrate comprises an armoured glass faceplate, a surface adhesive film, a cell slice, a back adhesive film and an armoured glass back plate, wherein the thicknesses of the armoured glass faceplate and the armoured glass back plate are both 2mm; and the sealing part comprises butyl rubbers, silica gels or tapes. The photovoltaic module has preferable shock resistance and flexibility, is in no need of being coated with aluminum frames and can be bent at normal temperature.
Description
Technical field
The present invention relates to the solar energy power generating field, particularly a kind of photovoltaic module and preparation method thereof.
Background technology
Along with adding of process of industrialization, conventional energy resource such as coal, oil and natural gas is exhausted day by day, and a series of environmental issues are followed appearance, how to break away from of the restriction of above-mentioned conventional energy resource, seek the main research object that a kind of new green power has become current many countries at quantity and environmental protection pressure.Solar energy is developed gradually in the world fast as a kind of reproducible green energy resource.Increasingly mature along with solar energy generation technology, photovoltaic module is obtained extensive use at numerous areas such as artificial satellite energy supplies.
Solar energy power generating is to utilize the photovoltaic effect of interface and a kind of technology of luminous energy directly being changed into electric energy; solar cell process series connection back uses panel, glued membrane and backboard that the battery sheet is protected, and breaks silica gel at last and uses the aluminium frame that it is encapsulated the large-area photovoltaic module of formation.
Existing photovoltaic module adopts the thick toughened glass of 3.2mm as panel material mostly, and TPT is as back veneer material.Packaging technology is specially: adopt EVA as glued membrane, the toughened glass that TPT backboard, EVA glued membrane, battery sheet, glued membrane and 3.2mm is thick stacks successively to be placed on and carries out laminated into typely in the autoclave, makes the photovoltaic module of 3.2mm toughened glass/EVA glued membrane/battery sheet/EVA glued membrane/TPT back board structure thus.In order to realize to use silica gel that the side of photovoltaic module is sealed to the sealing of battery sheet, the intensity of considering backboard simultaneously is lower, in order to improve the intensity of backboard, usually use the aluminium frame to coat photovoltaic module four limits, play the effect of enhancing, its concrete operations are: break silica gel to the sealing of above-mentioned photovoltaic module limit portion in aluminium chassis, finish assembling procedure thus.
Need it is installed on the back of the body frame after finishing the assembling of photovoltaic module in the manner described above, for the back of the body frame that radian is arranged, also requiring photovoltaic module to have the radian adaptive with it accordingly can install.This just needs the photovoltaic module group to carry out bending process to it according to the radian of back of the body frame, and it is had and the suitable radian of back of the body frame.But existing photovoltaic module can only be taked hot bending process, be about to each assembly of photovoltaic module and before assembling, all need carry out bending in heated state, again each parts after the bending are assembled, operate comparatively loaded down with trivial details, and behind the hot bending, parts flexibility and shape are just fixing, are difficult to adjust again, cause the raising of percent defective thus, restricted the application of photovoltaic module in the BIPV field.
The inventor considers the structure of photovoltaic module is regulated; when guaranteeing the photovoltaic module electric property; improve the shock resistance and the pliability of photovoltaic module; making it need not the aluminium frame strengthens protection and can realize the normal temperature bending; when reducing photovoltaic module weight, reduce the difficulty of bending process thus, promote rate of finished products.
Summary of the invention
The technical problem that the present invention solves is to provide a kind of photovoltaic module and preparation method thereof, and this photovoltaic module has good shock resistance and pliability, and it is flexible to need not metallized aluminum frame and normal temperature.
In view of this, the invention provides a kind of photovoltaic module, comprising: comprise substrate and the sealing that is sealed in described substrate side;
Described substrate comprises and setting gradually: toughened glass panel, face glued membrane, battery sheet, back-adhesive film, toughened glass backboard, and the thickness of described toughened glass panel and toughened glass backboard is 2mm;
Described sealing is butyl rubber, silica gel or adhesive tape.
Preferably, the light transmittance of described toughened glass panel is all greater than 91%.
Preferably, described glued membrane and back-adhesive film are the EVA glued membrane.
Preferably, the thickness of described glued membrane is 0.38mm～0.55mm.
Accordingly, the present invention also provides a kind of preparation method of photovoltaic module, comprising:
With toughened glass backboard, back-adhesive film, battery sheet, face glued membrane, toughened glass panel stack successively the back 140 ℃～160 ℃ laminated into type, obtain substrate; The thickness of described toughened glass panel and toughened glass backboard is 2mm;
Seal at described substrate side coating butyl rubber or silica gel, or seal, obtain photovoltaic module after the sealing at substrate side adhesive gel band.
Preferably, the pressure of described lamination is 15Kpa～45Kpa.
Preferably, the light transmittance of described toughened glass panel is greater than 91%.
Preferably, described glued membrane and back-adhesive film are the EVA glued membrane.
Preferably, the thickness of described glued membrane is 0.38mm～0.55mm.
The invention provides a kind of photovoltaic module, comprise substrate and sealing, wherein substrate comprises and setting gradually: the thick toughened glass panel of 2mm, face glued membrane, battery sheet, back-adhesive film, the thick toughened glass backboard of 2mm.With respect to existing photovoltaic module structure, photovoltaic module panel provided by the invention and backboard all adopt the thick toughened glass of 2mm, the reduction of toughened glass thickness makes photovoltaic module be easy to bending at normal temperatures, the symmetrical structure of panel and backboard makes photovoltaic module that fragmentation not take place when normal temperature is crooked, therefore, photovoltaic module provided by the invention can be realized the normal temperature bending, not only reduced energy consumption, and because the bending that assembly normal temperature takes place down is not permanent deformation, later stage is also adjusted once more to the bending of assembly, improves rate of finished products.
In addition, because panel and backboard all adopt toughened glass, impact strength is higher, therefore need not to re-use the needs that the aluminium frame strengthens just can satisfying use, has reduced the weight of photovoltaic module thus, has saved cost of transportation.The electric property that experiment showed, photovoltaic module provided by the invention and existing photovoltaic module is approaching, and mechanical property is more excellent, just can realize bending under the normal temperature.
Description of drawings
Fig. 1 is the vertical view of photovoltaic module provided by the invention;
Fig. 2 is a photovoltaic module board structure decomposing schematic representation provided by the invention.
Embodiment
In order further to understand the present invention, below in conjunction with embodiment the preferred embodiment of the invention is described, but should be appreciated that these describe just to further specifying the features and advantages of the present invention, rather than to the restriction of claim of the present invention.
The embodiment of the invention discloses a kind of photovoltaic module, be illustrated in figure 1 as the vertical view of this photovoltaic module, photovoltaic module provided by the invention comprises substrate and is sealed in the sealing of substrate side.Be illustrated in figure 2 as photovoltaic module board structure decomposing schematic representation provided by the invention.
Wherein substrate 1 comprises and setting gradually: toughened glass panel 11, face glued membrane 12, battery sheet 13, back-adhesive film 14, toughened glass backboard 15; The thickness of described toughened glass panel and toughened glass backboard is 2mm;
Sealing is butyl rubber, silica gel or adhesive tape.
By such scheme as can be known, the panel of photovoltaic module provided by the invention adopts the thick toughened glass of 2mm, reduce the thickness of panel thus, the light transmittance that has increased, and then guarantee the electricity conversion of photovoltaic module.The weight of the toughened glass that 2mm is thick is also lighter, and in the lamination operation, the air between glass and the glued membrane is easy to discharge, and also makes the lamination operation need not to carry out in autoclave thus, enhances productivity.And,, also make substrate panel be easy to bending at normal temperatures because the thick toughened glass of 2mm has excellent evenness and pliability.
The backboard of photovoltaic module also adopts the thick toughened glass of 2mm, and with respect to the TPT backboard, the price of toughened glass is comparatively cheap, makes the cost of photovoltaic module be reduced thus.Equally, because the thick toughened glass of 2mm has excellent evenness and pliability, also make the substrate backboard be easy to bending at normal temperatures.In addition, with respect to the TPT backboard, the mechanical property of toughened glass is also more excellent, therefore only need butyl rubber, silica gel or adhesive tape to the side of photovoltaic module seal just can, need not to use the aluminium frame, reduce the weight of overall optical photovoltaic assembly thus.Owing to need not to use the aluminium frame, also reduced and under the normal temperature photovoltaic module has been carried out crooked difficulty.
Glued membrane in the photovoltaic module not only is used for panel and backboard are bonded in the battery sheet; when photovoltaic module is carried out bending; soft glued membrane also is used to cushion the active force of external force to the battery sheet; in the operation of normal temperature bending, play the effect of protection battery sheet, make the battery pressure that sheet is received after the bending be in reduced levels all the time.Glued membrane preferably adopts EVA glued membrane or PVA glued membrane, more preferably adopts the EVA glued membrane.The thickness of glued membrane is preferably 0.38mm～0.55mm.If glue is lepthymenia, be difficult to guarantee that it has enough protections to the battery sheet when big when adding bending stress; If glued membrane is blocked up, then cause the photovoltaic group blocked up, be not easy to the bending under the normal temperature.
In addition, photovoltaic module provided by the invention is a symmetrical structure, and when assembly was subjected to adding bending stress, the stress distribution of each assembly was comparatively even, is difficult for taking place partial fracture when bending.The AGC glass that the toughened glass that above-mentioned 2mm is thick preferably adopts Li Saike company to provide, panel more preferably adopt light transmittance greater than 91% ultrawhite toughened glass.Backboard preferably adopts coloured glass, with the raising reflecting rate, and then the photoelectric conversion efficiency of raising photovoltaic module.
Photovoltaic module panel provided by the invention and backboard all adopt the thick toughened glass of 2mm, the reduction of toughened glass thickness makes photovoltaic module be easy to bending at normal temperatures, the symmetrical structure of panel and backboard makes photovoltaic module that fragmentation not take place when normal temperature is crooked, therefore, photovoltaic module provided by the invention can be realized the normal temperature bending, has not only reduced energy consumption, and because the bending that assembly normal temperature takes place down is not permanent deformation, later stage is also adjusted once more to the bending of assembly, improves rate of finished products.In addition, because panel and backboard all adopt toughened glass, impact strength is higher, therefore need not to re-use the needs that the aluminium frame strengthens just can satisfying use, has reduced the weight of photovoltaic module thus, has saved cost of transportation.
The panel thick with respect to 3.2mm, the thick toughened glass of the 2mm that the present invention adopts is as panel and backboard, reducing the flexible weight that reduces panel simultaneously of thickness increase, air when lamination vacuumizes between glass plate and the glued membrane is easier to be extracted out fully, need not to use autoclave during lamination, enhance productivity.
The present invention also provides a kind of preparation method of photovoltaic module, comprising:
A), with toughened glass backboard, back-adhesive film, battery sheet, face glued membrane, toughened glass panel stack successively the back 140 ℃～160 ℃ laminated into type, obtain substrate; The thickness of described toughened glass panel and toughened glass backboard is 2mm;
B), apply butyl rubber or silica gel, or adhere to adhesive tape, obtain photovoltaic module at substrate side at described substrate side.
Step a is the process of preparation substrate, because the back side and panel all adopt the thick toughened glass of 2mm in this photovoltaic module, the glass quality that 2mm is thick is lighter, in the process that lamination vacuumizes, air between glass and the glued membrane is easy to extract out fully, therefore need not to re-use autoclave.This step is specifically as follows: in laminating machine, stack toughened glass backboard, back-adhesive film, battery sheet, face glued membrane and toughened glass panel successively, and laminated into type to said modules after vacuumizing at 140 ℃～160 ℃.Laminating temperature is more preferably 145 ℃～155 ℃ in the lamination operation, and the pumpdown time is preferably 4min～8min, and pressure preferably is set to 15Kpa～45Kpa.Preferably the assembly that lays is carried out two sections and exert pressure and one section release of pressure, wherein, first section pressure of exerting pressure is preferably 35Kpa～45Kpa, and the time is preferably 1 minute～and 2 minutes; Second section pressure of exerting pressure is preferably 15Kpa～25Kpa, and the time is preferably 1 minute～and 2 minutes; The release of pressure time is preferably 5 minutes～and 9 minutes.
Glued membrane preferably adopts EVA glued membrane or PVA glued membrane, more preferably adopts the EVA glued membrane.The thickness of glued membrane is preferably 0.38mm～0.55mm.The AGC glass that the toughened glass that above-mentioned 2mm is thick preferably adopts Li Saike company to provide more preferably adopts light transmittance greater than 91% ultrawhite toughened glass.
Step b is the process that substrate is encapsulated.Because the panel and the back side all have mechanical strength preferably, therefore need not to use the aluminium frame to seal, only need at substrate side coating butyl rubber, silica gel or use adhesive tape to coat substrate side to get final product.If use butyl rubber or silica gel, preferably adopt adhesive supplier that the side of photovoltaic module is sealed, to guarantee to have enough sealing properties.The trade mark that adhesive tape preferably adopts 3M company to provide is 1060 adhesive tape.Owing to need not to use the aluminium frame to seal, therefore easy and simple to handle, production efficiency is higher.
Zhi Bei photovoltaic module is can be at normal temperatures crooked according to the method described above, and operating personnel can carry out the normal temperature bending in advance according to the radian of back of the body frame, or it is carried out bending when installing.Because therefore the not permanent deformation of flexural deformation that normal temperature takes place down, is used the photovoltaic module later stage of this method preparation also the bending of assembly to be adjusted once more, and then is improved rate of finished products.
In order further to understand the present invention, below in conjunction with embodiment photovoltaic module provided by the invention and preparation method thereof is described, protection scope of the present invention is not limited by the following examples.
The AGC glass that the toughened glass that 2mm provided by the invention is thick is provided by Li Saike company, its light transmittance is greater than 91%;
The EVA glued membrane provides by Foster company, and the trade mark of EVA glued membrane is F806 between face glass and the battery sheet, and the trade mark of EVA glued membrane is F406 between back-panel glass and the battery sheet;
Adhesive tape is provided by Minnesota Mining and Manufacturing Company, and the trade mark is 1060;
Embodiment 1
1, in laminating machine, stacks the thick toughened glass backboard of 2mm, the thick EVA glued membrane of 0.5mm, battery sheet, 0.5mm EVA glued membrane, 2mm toughened glass panel successively, it is 150 ℃ that laminating temperature is set, vacuumize 6min, it is 40Kpa that first section pressure is set, and first lamination period is 1 minute and 30 seconds; It is 20Kpa that second section pressure is set, and second lamination period is 1 minute and 30 seconds; Pressure is decreased to zero, and release of pressure 7 minutes obtains substrate.
2, use adhesive supplier to beat butyl rubber, obtain photovoltaic module at substrate side.
Embodiment 2
1, in laminating machine, stacks the thick toughened glass backboard of 2mm, the thick EVA glued membrane of 0.38mm, battery sheet, 0.38mm EVA glued membrane, 2mm toughened glass panel successively, it is 145 ℃ that laminating temperature is set, vacuumize 7min, it is 35Kpa that first section pressure is set, and first lamination period is 2 minutes; It is 15Kpa that second section pressure is set, and second lamination period is 2 minutes and 30 seconds; Pressure is decreased to zero, and release of pressure 8 minutes obtains substrate.
2, use adhesive supplier to break silica gel, obtain photovoltaic module at substrate side.
Embodiment 3
1, in laminating machine, stacks the thick toughened glass backboard of 2mm, the thick EVA glued membrane of 0.5mm, battery sheet, 0.5mm EVA glued membrane, 2mm toughened glass panel successively, it is 155 ℃ that laminating temperature is set, vacuumize 5min, it is 45Kpa that first section pressure is set, and first lamination period is 1 minute and 1 minute 10 seconds; It is 15Kpa that second section pressure is set, and second lamination period is 1 minute and 10 seconds; Pressure is decreased to zero, and release of pressure 7 minutes obtains substrate.
2, at the substrate side coating adhesive tape, obtain photovoltaic module.
Comparative example 1
1, in autoclave, stacks the thick toughened glass backboard of 3.2mm, the thick EVA glued membrane of 0.76mm, battery sheet, 0.76mm EVA glued membrane, TPT backboard successively, the above-mentioned assembly that lays is carried out the overall vacuum precompressed, carrying out high pressure then solidifies, pressure is set is, temperature is 150 ± 5 ℃, high pressure solidifies 10min, obtains substrate.
2, in aluminium chassis, break silica gel, the aluminium frame is installed around the substrate again, obtain photovoltaic module.
Preparing specification according to the method for embodiment 1～3 and comparative example 1 respectively is 11pcs size: 1100*360,1700*1585, the photovoltaic module of 1938*875, the photovoltaic module that the embodiment 1～3 and the comparative example 1 of above-mentioned specification made carries out Mechanics Performance Testing, and test result is listed in table 1.
The photovoltaic module mechanics spare that table 1 embodiment 1-3 and comparative example 1 make can test result
The photovoltaic module Mechanics Performance Testing result that continuous table 1 embodiment 1-3 and comparative example 1 make
Method according to embodiment 1～3 and comparative example 1 prepares the photovoltaic module that specification is 1650*990 respectively, tests the embodiment 1～embodiment 3 of above-mentioned specification and the electric property of the photovoltaic module that comparative example 1 prepares, and test result is listed in table 2.
The electrical performance testing result of the photovoltaic module of table 2 embodiment 1-embodiment 3 and comparative example preparation
It is 45 ° bending that embodiment 1～embodiment 3 is carried out radian at normal temperature, and after the bending, the battery sheet all takes place damaged.
Electric property by The above results photovoltaic module provided by the invention as can be known and existing photovoltaic module is approaching, and mechanical property is more excellent, just can realize bending under the normal temperature.
The explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof.Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection range of claim of the present invention.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the present invention.Multiple modification to these embodiment will be conspicuous concerning those skilled in the art, and defined herein General Principle can realize under the situation that does not break away from the spirit or scope of the present invention in other embodiments.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (9)
1. a photovoltaic module is characterized in that, comprises substrate and the sealing that is sealed in described substrate side;
Described substrate comprises and setting gradually: toughened glass panel, face glued membrane, battery sheet, back-adhesive film, toughened glass backboard, and the thickness of described toughened glass panel and toughened glass backboard is 2mm;
Described sealing is butyl rubber, silica gel or adhesive tape.
2. photovoltaic module according to claim 1 is characterized in that the light transmittance of described toughened glass panel is all greater than 91%.
3. photovoltaic module according to claim 1 is characterized in that, described glued membrane and back-adhesive film are the EVA glued membrane.
4. photovoltaic module according to claim 4 is characterized in that, the thickness of described glued membrane is 0.38mm～0.55mm.
5. the preparation method of a photovoltaic module comprises:
With toughened glass backboard, back-adhesive film, battery sheet, face glued membrane, toughened glass panel stack successively the back 140 ℃～160 ℃ laminated into type, obtain substrate; The thickness of described toughened glass panel and toughened glass backboard is 2mm;
Seal at described substrate side coating butyl rubber or silica gel, or seal, obtain photovoltaic module after the sealing at substrate side adhesive gel band.
6. preparation method according to claim 5 is characterized in that, the pressure of described lamination is 15Kpa～45Kpa.
7. photovoltaic module according to claim 5 is characterized in that the light transmittance of described toughened glass panel is greater than 91%.
8. photovoltaic module according to claim 5 is characterized in that, described glued membrane and back-adhesive film are the EVA glued membrane.
9. photovoltaic module according to claim 5 is characterized in that, the thickness of described glued membrane is 0.38mm～0.55mm.
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| CN105047744A (en) * | 2015-08-24 | 2015-11-11 | 东莞南玻光伏科技有限公司 | Manufacturing method of solar photovoltaic assembly |
| CN105374891A (en) * | 2014-09-01 | 2016-03-02 | 汉能新材料科技有限公司 | Solar module capable of repeated installation |
| EP3163629A1 (en) * | 2015-10-26 | 2017-05-03 | ML SYSTEM Spólka Akcyjna | A semi-elastic photovoltaic module |
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