CN110391312A - A kind of lightweight photovoltaic back and its photovoltaic module with high efficiency and heat radiation effect - Google Patents
A kind of lightweight photovoltaic back and its photovoltaic module with high efficiency and heat radiation effect Download PDFInfo
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- CN110391312A CN110391312A CN201910689739.0A CN201910689739A CN110391312A CN 110391312 A CN110391312 A CN 110391312A CN 201910689739 A CN201910689739 A CN 201910689739A CN 110391312 A CN110391312 A CN 110391312A
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Classifications
-
- 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
-
- 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
- H01L31/049—Protective back sheets
-
- 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
- H01L31/052—Cooling means directly associated or integrated with the PV cell, e.g. integrated Peltier elements for active cooling or heat sinks directly associated with the PV cells
-
- 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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- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Photovoltaic Devices (AREA)
Abstract
The invention discloses a kind of lightweight photovoltaic backs with high efficiency and heat radiation effect, inside backsheet layer including contact connectio and the external grid composite plate layer equipped with several grill units, internal backsheet layer is encapsulated as the back side of photovoltaic module, and external grid composite plate layer is used for lining plate structure of the substituted metal frame as photovoltaic module, while being used for the backside radiator of photovoltaic module；The invention further relates to the photovoltaic modulies of the lightweight photovoltaic back application with high efficiency and heat radiation effect；The present invention have the advantages that simultaneously lightweight, safe and reliable, Rimless design be not easy dust stratification and do not have to ground connection, its edition type can be flexible and changeable, avoid the high explosion problem of traditional solar double-glass assemblies, and the present invention complies fully with photovoltaic standard requirement, and real scale may be implemented and promote and apply；The present invention also has the high efficiency and heat radiation effect to photovoltaic module, thereby reduces the operating temperature of photovoltaic module, therefore can also improve the generating efficiency of photovoltaic module to a certain extent.
Description
Technical field
The invention belongs to photovoltaic encapsulation technologies, and in particular to a kind of lightweight photovoltaic back with high efficiency and heat radiation effect, this
Invention has further related to the photovoltaic module of the lightweight photovoltaic back with high efficiency and heat radiation effect application.
Background technique
Reliability, safety and low cost are the requirements that any energy products all must simultaneously meet.In the past few decades,
Photovoltaic industry improves photoelectric conversion efficiency, the production domesticization of supply chain and production equipment by continuing and being absorbed in research and development in high quality
The cost of photovoltaic products was had dropped as many as 300 times in past 40 years with main means such as automations.Certainly, these past are several
10 years highly significants and effectively the cost of photovoltaic cell is almost reduced to it is ultimate attainment, no matter transfer efficiency the limit or give birth to
Bottleneck will all be met with by producing scale effect, and therefore, photovoltaic module product also needs more technological innovations.
Applicant have observed that photovoltaic module twenty years ago, the price of photovoltaic cell is much higher than the valence of its encapsulating structure
Lattice, initial photovoltaic module product have to take good care of Huang meticulously using encapsulating structures such as heavy glass and thick and solid aluminium frames
Photovoltaic cell as gold farthest plays the power generation effect of cell piece.It is close however as passing through in photovoltaic cell on piece
The technological innovation of decades realizes ultimate attainment in cost, this makes cell piece in photovoltaic module product and encapsulating material
Reverse variation has occurred in cost structure distribution, the cost of encapsulating material begins to exceed the cost of cell piece, that is to say, that battery
Piece is opposite to seem cheap, then has the new photovoltaic module battery structure technology such as two-sided, half and imbrication at present and occurs, leads to
It crosses the structure and strives for maximum encapsulating material utilization rate.People become " cherishing book jacket package material " from " care battery ".
Furthermore, it is understood that in the encapsulating structure of existing conventional photovoltaic subassembly product, for light-receiving surface encapsulation glass with
And back mounted aluminium frame occupies the encapsulating structure cost of most of ratio, and the use institute of glass and metallic aluminium frame
Bring carrying, packaging, transport, construction and the equal outer human cost of grounding requirement and difficulty of construction are even more very important.This
Outside, the photovoltaic module product being packaged using glass and metallic aluminium frame also can further be generated safety and be asked due to weight weight
Topic.
For this purpose, over nearly 5 years, the applicant has been devoted to focus on photovoltaic component encapsulating structure and encapsulating material
High quality technological innovation, and propose the encapsulation scheme of the more photovoltaic module product with flexible installing effect；And with this
Applicant is continued over 20 years in the absorbed research and development in photovoltaic encapsulation field and based on the applicant inventor in photovoltaic industry
And deep absorbed research, and photovoltaic industry scale drop sheet, the development achievements of Push Technology innovation, hair have been led at home
Now exploitation lightweight photovoltaic module can be the next step innovation and development direction for breaking through photovoltaic products encapsulation technology.
Under this direction, present applicant has proposed the technical solutions of lighting photovoltaic module, right before proposing the application
The lightweight photovoltaic component encapsulating technology having proposed at present has carried out system and has comprehensively investigated, retrieves and analyze, and is listed below portion
Divide documents:
Documents 1: the Chinese invention patent of Publication No. CN109390422A discloses a kind of photovoltaic module, proposes to adopt
Use the structure of the first substrate layer being cascading, honeycomb sandwich layer and the second substrate layer as backsheet layer, thickness reduces, simultaneously
Metallic aluminium frame design can be cancelled, realize lightening effect, wherein first substrate layer and the second substrate layer can use asphalt mixtures modified by epoxy resin
Rouge insulating layer or metal layer, honeycomb sandwich layer pass through that adhesive is Nian Jie to be complex as one with first substrate layer and the second substrate layer respectively
Body, and in order to prevent the honeycomb core composite back plate be bubbled in lamination process, degumming, gas vent is set in sandwich layer, simultaneously
The gas vent runs through substrate layer, which inevitably results in the intensity of its structure and obstruct the degradation of steam breathability,
It is difficult to really be practiced.
The patent of invention of documents 2:CN109192801A discloses a kind of light-weight photovoltaic module and preparation method thereof,
Light-weight photovoltaic module includes the transparent cephacoria being cascading, stiffening plate, the first adhesive film, solar battery sheet, second
Adhesive film, first substrate layer, third adhesive film, honeycomb sandwich layer, the 4th adhesive film and the second substrate layer.
Documents 3: the PCT Publication of 2018/013618 Al of Publication No. WO is a kind of for replacing aluminium frame
The photovoltaic component lamination structure of mounting structure proposes to use polyethylene foam, and passes through in polyethylene foam upper and lower surface
Adhesive-layer is bonded composite polypropylene glass fiber material layer, for replacing aluminium frame mounting structure.
Although these documents are proposed using the structure of substrate layer and honeycomb sandwich layer for directly substituting backboard and aluminium
The design of frame, however these technologies are to realize that the connection between substrate layer and honeycomb sandwich layer is multiple using adhesive-layer or adhesive film
The composite construction for closing, however referring to as documents 1 will lead to the production in subsequent be laminated after being applied to photovoltaic back
The problems such as raw bubbling, degumming and deformation are wriggled, causes the effect of final photovoltaic module product to be severely impacted, and due to
The conventional thinking of photovoltaic encapsulation technology is that connection between each function material layer is carried out using adhesive film is compound and using viscose glue
It is also that conventional cell plate or the conventional of foamed board form combination process that agent, which is attached compound, this is also resulted in as described above
Lightweight photovoltaic module scheme in documents 1-3 is passed through again after carrying on technical development respectively to substrate layer with honeycomb sandwich layer
Traditional glue film or adhesive realization are compound, and applicant has found after concentrating retrieval, in order to solve these composite constructions
Its composite effect is directly sacrificed in problem or setting vent structure or selection.Therefore, at present these technologies apply base
This is horizontal in laboratory certification or lab scale, can not really implement scale promote and apply.
Based on the above status, market in urgent need seeks that the lighting photovoltaic module solution of scale popularization and application can be carried out.
Summary of the invention
In view of this, the purpose of the present invention is to provide a kind of lightweight photovoltaic backs and its light with high efficiency and heat radiation effect
Lie prostrate component, at the same have lightweight, safe and reliable, Rimless design be not easy dust stratification and do not have to ground connection, its edition type can be flexible and changeable
The advantages of, the high explosion problem of traditional solar double-glass assemblies is avoided, and the present invention complies fully with photovoltaic standard requirement, may be implemented true
Normal mode promotes and applies；In addition, the present invention also has the high efficiency and heat radiation effect to photovoltaic module, photovoltaic module is thereby reduced
Operating temperature, therefore the generating efficiency of photovoltaic module can also be improved to a certain extent.
The technical solution adopted by the invention is as follows:
A kind of lightweight photovoltaic back with high efficiency and heat radiation effect, inside backsheet layer including contact connectio and is equipped with several
The external grid composite plate layer of grill unit, the internal backsheet layer are encapsulated as the back side of photovoltaic module, and the external lattice
Grid composite plate layer is used for lining plate structure of the substituted metal frame as photovoltaic module, while dissipating for the back side of the photovoltaic module
Heat.
Preferably, the grid composite plates layer with a thickness of 3-50mm, the internal backsheet layer with a thickness of 0.05-5mm.
Preferably, the grid composite plates layer uses reinforced thermoplastic composite material or enhanced same with thermosetting compound material
It is made.
Preferably, the reinforced thermoplastic composite material is selected from continuous fiber reinforcement PP composite material, continuous fiber increases
At least one of strong PA composite material, continuous fiber reinforcement PE composite material and continuous fiber reinforcement PC composite material；It is described
Enhanced same with thermosetting compound material is selected from continuous fiber reinforcement unsaturated polyester resin, continuous fiber reinforcement epoxy resin, continuous
At least one of fiber reinforcement polyurethane resin and continuous fiber reinforcement phenolic resin.
Preferably, any one or a few mixed of the material of the internal backsheet layer in PP, PET, PA, PC and PE
It closes.
Preferably, the internal backsheet layer uses continuous fiber reinforced thermoplastic polymer one-way tape single layer structure or multilayer
Laminated construction.
Preferably, the grill unit is in rectangle shape or positive square shape or diamond pattern shape or triangular form shape；?
It can be the grill unit of other special-shaped shapes, the application is not specially limited this.
Preferably, the external grid composite plate layer bottom is equipped with installation guide rail of at least one for fixed installation, specifically
Preferably, installation guide rail and external grid composite plate layer use integrated formed structure.
Preferably, a kind of photovoltaic module, including be packaged as a whole front encapsulating material layer, front packaging plastic film layer, electricity
Pond lamella, back side packaging plastic film layer and backboard, wherein the backboard is using as described above with the lightweight of high efficiency and heat radiation effect
Photovoltaic back.
Preferably, the photovoltaic module is packaged as a whole using laminating technology.
Preferably, the photovoltaic module is using laminating technology in advance by front encapsulating material layer, front packaging plastic film layer, electricity
Pond lamella, back side packaging plastic film layer and internal backsheet layer form to obtain laminating packaging part using laminating technology, then will lamination
Packaging part is fixed installation with the external grid composite plate layer and is connected as one.
Preferably, the external grid composite plate layer bottom is equipped with installation guide rail of at least one for fixed installation, described
Photovoltaic module is fixedly mounted in the mounting bracket of bottom by the installation guide rail.
It is obtained it should be noted that grid composite plates layer of the present invention can be directly to purchase from existing market, lattice
Grid composite plate layer is applied to building decoration area widely, and therefore, the present invention is to the specific moulding process of grid composite plates layer
Specific expansion explanation is not done, and the present invention Xian Ding place to it yet yet.
Present document relates to PP be Polypropylene abbreviation, it is intended that polypropylene；PET is Polyethylene
The abbreviation of terephthalate, it is intended that poly terephthalic acid class plastics；PA is the abbreviation of Polyamide, it is intended that polyamide；PC
It is the abbreviation of Polycarbonate, it is intended that polycarbonate；PE is the abbreviation of Polyethylene, it is intended that polyethylene.
Respectively have senior Developed Background and the theoretical knowledge of different field horizontal in conjunction with present inventor, by multiple
The screening of condensation material and applied to the integrated testability of photovoltaic module product after, it is multiple to propose the grid equipped with several grill units
Lining plate structure of the plywood layer as lightweight backboard, the application of the structure assign photovoltaic module have simultaneously it is only in terms of following two
Trick advantage:
1, grid composite plates layer proposed by the present invention can be used for lining plate structure of the substituted metal frame as photovoltaic module, interior
Portion's backsheet layer is encapsulated as the back side of photovoltaic module, and there is no such as documents 1-3 institutes for the lightweight composite construction that the two is formed
The lightweight backboard being related to generates the problems such as bubbling, degumming and deformation are wriggled when photovoltaic module is laminated, and effectively ensures lightweight
The laminate quality of photovoltaic module, yields when scale is laminated is high, can verify that the present invention complies fully with photovoltaic by performance test
Standard requirement may be implemented real scale and promote and apply；It is not easy dust stratification and not with lightweight, safe and reliable, Rimless design
With ground connection, its edition type can various positive technical effects such as flexible and changeable, the high explosion problem that avoids traditional solar double-glass assemblies, make
Obtaining of the invention can be the powerful technique solution for breaking through the next step innovation and development direction of photovoltaic products encapsulation technology；
2, lining plate structure of the grid composite plates layer substituted metal frame proposed by the present invention as photovoltaic module, may be implemented
High efficiency and heat radiation effect is realized to photovoltaic module, and then the operating temperature of photovoltaic module can be reduced, therefore can also be to a certain degree
The upper generating efficiency for improving photovoltaic module；
3, installation guide rail structure can be further arranged in grid composite plates layer proposed by the present invention, and substitution needs in the prior art
The metal guide rail structure additionally installed simplifies the process when photovoltaic module subsequent installation while being further reduced installation weight,
Installation cost is further effectively reduced.
Detailed description of the invention
Attached drawing 1 is the decomposition layer knot of the lightweight photovoltaic back 10 under the specific embodiment of the invention with high efficiency and heat radiation effect
Structure schematic diagram；
Attached drawing 2 is the schematic diagram of a layer structure of photovoltaic module 100 under the specific embodiment of the invention；
Attached drawing 3 is the structural schematic diagram of external grid composite plates layer 12 ' in the embodiment of the present invention 3；
Attached drawing 4 is the structural schematic diagram of external grid composite plates layer 12 " in the embodiment of the present invention 4；
Attached drawing 5 is the structural schematic diagram of external grid composite plates layer 12 " ' in the embodiment of the present invention 5；
Attached drawing 6 is the structural schematic diagram of external grid composite plates layer 22 in the embodiment of the present invention 9；
Attached drawing 7 is the bottom view of Fig. 6.
Specific embodiment
The embodiment of the invention discloses a kind of lightweight photovoltaic back with high efficiency and heat radiation effect, photovoltaic back includes contact
The inside backsheet layer of connection and external grid composite plate layer equipped with several grill units, internal backsheet layer is as photovoltaic module
Back side encapsulation, and external grid composite plate layer is used for lining plate structure of the substituted metal frame as photovoltaic module, while being used for light
Lie prostrate the backside radiator of component.
The embodiment of the invention also discloses a kind of photovoltaic module, including be packaged as a whole front encapsulating material layer, front
Packaging plastic film layer, battery lamella, back side packaging plastic film layer and backboard, wherein backboard is using as described above with high efficiency and heat radiation
The lightweight photovoltaic back of effect.
Technical solution in order to enable those skilled in the art to better understand the present invention, below in conjunction with of the invention real
The attached drawing in example is applied, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described implementation
Example is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without making creative work, all should belong to protection of the present invention
Range.
Embodiment 1: a kind of lightweight photovoltaic back 10 with high efficiency and heat radiation effect shown in Figure 1, including contact
The inside backsheet layer 11 of connection and external grid composite plate layer 12 equipped with several grill unit 12a, it is preferable that in this embodiment party
In formula, grill unit 12a is in positive square shape；
In the present embodiment, internal backsheet layer 11 is encapsulated as the back side of photovoltaic module, and external grid composite plate layer
12 are used for lining plate structure of the substituted metal frame as photovoltaic module, while being used for the backside radiator of photovoltaic module；
Preferably, in the present embodiment, grid composite plates layer 12 with a thickness of 3-50mm, the thickness of internal backsheet layer 11
For 0.05-5mm, particularly preferably, in the present embodiment, grid composite plates layer 12 with a thickness of 15mm, internal backsheet layer 11
With a thickness of 2mm, in other embodiments, grid composite plates layer 12 can also be specifically chosen in this preferred thickness range
Thickness, such as 3mm, 4mm, 6mm, 8mm, 10mm, 20mm, 25mm, 30mm；In can also being specifically chosen in this preferred thickness range
The thickness of portion's backsheet layer 11, such as 0.05mm, 0.1mm, 0.2mm, 0.3mm, 0.4mm, 0.5mm, 0.7mm, 0.9mm, 1mm,
1.3mm, 1.6mm, 2.5mm, 3mm, 3.5mm, 4mm, 4.5mm, 5mm, the present invention are not particularly limited this when implementing；
Preferably, in the present embodiment, grid composite plates layer 12 is made of reinforced thermoplastic composite material, is enhanced
Type thermoplastic composite is selected from continuous fiber reinforcement PP composite material, continuous fiber reinforcement PA composite material, continuous fiber and increases
Strong at least one of PE composite material and continuous fiber reinforcement PC composite material particularly preferably in the present embodiment, increase
Strong type thermoplastic composite uses continuous fiber reinforcement PP composite material；
Preferably, in the present embodiment, the material of internal backsheet layer 11 is any in PP, PET, PA, PC and PE
One or more of mixing, particularly preferably, in the present embodiment, the material of internal backsheet layer 11 is PP, and cost is lower, resistance
Water proof vapour through performance is excellent, belongs to most preferred embodiment；In other embodiments, PET or PA or PC or PE can be used
In any one, similar technical effect can be obtained；
Preferably, please be further shown in Figure 2, the present embodiment also proposed a kind of photovoltaic module 100, including be encapsulated as
Front encapsulating material layer 50, front packaging plastic film layer 40, battery lamella 30, back side packaging plastic film layer 20 and the backboard of one,
In, backboard is using as described above with the lightweight photovoltaic back 10 of high efficiency and heat radiation effect；Preferably, in the present embodiment,
Photovoltaic module 100 is packaged as a whole using laminating technology；Front encapsulating material layer 50, front packaging plastic used by the present embodiment
Film layer 40, back side packaging plastic film layer 20 can use the prior art, and there is no particular limitation as to it for the present embodiment, specifically, at this
In embodiment, front encapsulating material layer 50 can use acrylic thermoset powdery paints complex fabric cloth, in propylene acid heat
Fluoroplastics film 60, front packaging plastic film layer 40, back side packaging plastic film layer 20 are added above solidity powdery paints complex fabric cloth
EVA adhesive film can be used；In other embodiments, front encapsulating material layer 50 can use tempered glass.
Particularly preferably, the operating procedure of laminating technology used by the present embodiment is as follows:
S10), fluoroplastics film 60, front encapsulating material layer 50, front packaging plastic film layer 40, battery lamella 30, the back side are sealed
Successively lamination laying is placed in laminating apparatus for dress adhesive film 20 and lightweight photovoltaic back 10；
S20), laminating apparatus obtains laminate after layer laying part carries out heating pressurization through the stack；
S30), edge is carried out to laminate to cut, obtain photovoltaic module 100；
Wherein, in the step S20) in, laminating technology includes the first heating period, the second heating period and third pressurization
Cooling stage, the heating temperature range of first stage are 110-150 DEG C, and heating time range is 100-600 seconds；Second stage
Heating temperature range is 130-200 DEG C, and heating time range is 100-1200 seconds；The cooling temperature range of phase III is 25-
60 DEG C, application pressure limit is 0.05-0.25Mpa.
Embodiment 2: remaining technical solution of the present embodiment 2 is same as Example 1, and difference is only that, in the present embodiment 2
In, grid composite plates layer 12 is made of enhanced same with thermosetting compound material, and enhanced same with thermosetting compound material is selected from continuous fine
Dimension enhancing unsaturated polyester resin, continuous fiber reinforcement epoxy resin, continuous fibre enhancement polyurethane resin and continuous fiber increase
At least one of strong phenolic resin；Specifically, in the present embodiment, enhanced same with thermosetting compound material uses continuous fiber
Enhance unsaturated polyester resin.
Embodiment 3: remaining technical solution of the present embodiment 3 is same as Example 1, and difference is only that, please with further reference to
Shown in Fig. 3, the present embodiment 3 proposes a kind of external grid composite plate layer 12 ', and grill unit 12a ' is in rectangle shape.
Embodiment 4: remaining technical solution of the present embodiment 4 is same as Example 1, and difference is only that, please with further reference to
Shown in Fig. 4, the present embodiment 4 proposes a kind of external grid composite plate layer 12 ", and grill unit 12a " is in diamond pattern shape.
Embodiment 5: remaining technical solution of the present embodiment 5 is same as Example 1, and difference is only that, please with further reference to
Shown in Fig. 5, the present embodiment 5 proposes a kind of external grid composite plate layer 12 " ', and grill unit 12a " ' is in triangular form shape.
Embodiment 6: remaining technical solution of the present embodiment 6 is same as Example 1, and difference is only that, in the present embodiment 6
In, internal backsheet layer 11 uses continuous fiber reinforced thermoplastic polymer one-way tape single layer structure；Thermoplastic polymer using PP,
Any one in PET, PA, PC and PE can also have similar performance using with these materials in other embodiments
Other thermoplastic polymers；Particularly preferably, in the present embodiment, thermoplastic polymer uses PP, and cost is lower, belongs to most
Preferred embodiment；In other embodiments, it can be obtained similar using any one in PP, PET, PA, PC and PE
Technical effect；
In the present embodiment, continuous fiber is continuous glass fibre, in other embodiments, is also used and continuous glass
Glass fiber has the prior art continuous fiber of similar effect, such as continuous carbon fibre or continuous aramid fiber；
In the present embodiment, the preparation process of continuous fiber reinforced thermoplastic polymer one-way tape single layer structure is using such as
Lower operating procedure:
A10), thermoplastic polymer raw material heating melting is impregnated into heat in a molten state using continuous fiber in advance
Thermoplastic polymer；
A20), that the continuous fiber for being impregnated with thermoplastic polymer is squeezed into continuous fiber reinforced thermoplastic polymer is unidirectional
Band single layer structure.
Embodiment 7: remaining technical solution of the present embodiment 7 is same as Example 1, and difference is only that, in the present embodiment 7
In, internal backsheet layer 11 uses continuous fiber reinforced thermoplastic polymer one-way tape multi-layer laminate structure, and preparation process uses
Following operating procedure:
A10), thermoplastic polymer raw material heating melting is impregnated into heat in a molten state using continuous fiber in advance
Thermoplastic polymer；
A20), the continuous fiber for being impregnated with thermoplastic polymer is squeezed into one-way tape；
A30), one-way tape is repeatedly laminated by the way of 90 ° each other or 45 °, is pressurizeed by heating, different layers list
It melts to the thermoplastic polymer of band, is impregnated with mutually, while sufficiently wrapping up continuous fiber, obtain the inside back of multi-layer laminate structure
Plate layer 11；Preferably, in the present embodiment 7, the layer number range of internal 11 multi-layer laminate structure of backsheet layer is 2-6 layers；Specifically
Preferably, in the present embodiment 7, the layer number of internal 11 multi-layer laminate structure of backsheet layer is 3 layers.
Embodiment 8: remaining technical solution of the present embodiment 8 is same as Example 1, and difference is only that, in the present embodiment 8
In, photovoltaic module is in advance encapsulated front encapsulating material layer, front packaging plastic film layer, battery lamella, the back side using laminating technology
Adhesive film and internal backsheet layer form to obtain laminating packaging part using laminating technology, then by laminating packaging part and external grid
Composite plate layer, which carries out being mechanically fixed installation, to be connected as one；Specifically, being mechanically fixed installation connection type may include buckle-type
Or fastening-type structure, these are all the routine techniques selections that those skilled in the art record that scheme can be made according to the application,
No longer expansion illustrates the embodiment of the present application one by one.
Embodiment 9: remaining technical solution of the present embodiment 9 is same as Example 1, and difference is only that, please with further reference to
Shown in Fig. 6 and Fig. 7, the present embodiment 9 proposes a kind of external grid composite plate layer 22, the bottom of external grid composite plate layer bottom 22
Portion grid side integrally extends outward to form 3 in installation guide rail 200a, 200b, the 200c being spaced apart, while installing guide rail
Multiple fixed installation portions 210 being fastenedly connected with bottom mounting bracket, photovoltaic module are equipped at intervals on 200a, 200b, 200c
100 are fixedly mounted on bottom mounting bracket (not shown go out) by installation guide rail 200a, 200b, 200c, bottom mounting bracket
Using existing well-known technique；It should be noted that, with installation guide rail 200a, 200b, 200c are integrally formed in actual implementation
Thickness of the grid when thickness is greater than remaining grid, for ensuring installation strength, actual (real) thickness, fixed installation portion structure with
And the spacing distance selection of installation guide rail can be carried out according to the conventional technical means of those skilled in the art, the present embodiment
It is not specially limited；
22 structure of external grid composite plate layer bottom in the present embodiment 9 can be further substituted with needs volume in the prior art
The metal guide rail structure of outer installation simplifies process when photovoltaic module subsequent installation, further has while reducing installation weight
Effect reduces installation cost.
Comparative example 1: the lightweight photovoltaic module proposed using documents 1.
Comparative example 2: the lightweight photovoltaic module proposed using documents 2.
Comparative example 3: the lightweight photovoltaic module proposed using documents 3.
Comparative example 4: the photovoltaic module applied using prior art convention transparent backboard.
Comparative example 5: using double glass photovoltaic modulies of the prior art.
The various embodiments described above and each comparative example are carried out photovoltaic module application installation and implemented by the application, and are carried out effect
Fruit comparison, main contrast's result refer to the following table 1:
The comparison of the implementation result of 1 embodiment of the present invention of table and comparative example
This application involves barrier steam breathability testing standard according to being GB/T 26253-2010, tensile strength
Testing standard foundation is GB/T1040.3-2006.
Meanwhile the present embodiment 1-8 is considerably more rapid on radiating efficiency relative to comparative example 1-5, the work temperature of photovoltaic module
Degree be reduced 2.5-3 DEG C, therefore, in the present embodiment 1-8 the generating efficiency of photovoltaic module relative to comparative example 1-5 can be improved to
Few 1% generating efficiency.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (12)
1. a kind of lightweight photovoltaic back with high efficiency and heat radiation effect, which is characterized in that the inside backsheet layer including contact connectio
With the external grid composite plate layer for being equipped with several grill units, the internal backsheet layer is encapsulated as the back side of photovoltaic module, and
The external grid composite plate layer is used for lining plate structure of the substituted metal frame as photovoltaic module, while being used for the photovoltaic group
The backside radiator of part.
2. as described in claim 1 with the lightweight photovoltaic back of high efficiency and heat radiation effect, which is characterized in that the grid is compound
Plate layer with a thickness of 3-50mm, the internal backsheet layer with a thickness of 0.05-5mm.
3. as described in claim 1 with the lightweight photovoltaic back of high efficiency and heat radiation effect, which is characterized in that the grid is compound
Plate layer is made of reinforced thermoplastic composite material or enhanced same with thermosetting compound material.
4. as claimed in claim 3 with the lightweight photovoltaic back of high efficiency and heat radiation effect, which is characterized in that the enhanced heat
Plastic composites are selected from continuous fiber reinforcement PP composite material, continuous fiber reinforcement PA composite material, continuous fiber reinforcement PE
At least one of composite material and continuous fiber reinforcement PC composite material；The enhanced same with thermosetting compound material is selected from continuous
Fiber reinforcement unsaturated polyester resin, continuous fiber reinforcement epoxy resin, continuous fibre enhancement polyurethane resin and continuous fiber
Enhance at least one of phenolic resin.
5. as described in claim 1 with the lightweight photovoltaic back of high efficiency and heat radiation effect, which is characterized in that the internal backboard
Any one or a few mixing of the material of layer in PP, PET, PA, PC and PE.
6. as claimed in claim 5 with the lightweight photovoltaic back of high efficiency and heat radiation effect, which is characterized in that the internal backboard
Layer uses continuous fiber reinforced thermoplastic polymer one-way tape single layer structure or multi-layer laminate structure.
7. as described in claim 1 with the lightweight photovoltaic back of high efficiency and heat radiation effect, which is characterized in that the grill unit
In rectangle shape or positive square shape or diamond pattern shape or triangular form shape.
8. as described in claim 1 with the lightweight photovoltaic back of high efficiency and heat radiation effect, which is characterized in that the external grid
Composite plate layer bottom is equipped with installation guide rail of at least one for fixed installation.
9. a kind of photovoltaic module, including be packaged as a whole front encapsulating material layer, front packaging plastic film layer, battery lamella, back
Face packaging plastic film layer and backboard, which is characterized in that the backboard has high efficiency and heat radiation using as described in one of claim 1-8
The lightweight photovoltaic back of effect.
10. as claimed in claim 9 with the photovoltaic module of efficiency power generation efficiency, which is characterized in that the photovoltaic module is adopted
It is packaged as a whole with laminating technology.
11. as claimed in claim 9 with the photovoltaic module of efficiency power generation efficiency, which is characterized in that the photovoltaic module is adopted
With laminating technology in advance by front encapsulating material layer, front packaging plastic film layer, battery lamella, back side packaging plastic film layer and inside
Backsheet layer forms to obtain laminating packaging part using laminating technology, then by laminating packaging part and the external grid composite plate layer into
Row is fixedly mounted and is connected as one.
12. as claimed in claim 9 with the photovoltaic module of efficiency power generation efficiency, which is characterized in that the external grid is multiple
Plywood layer bottom is equipped with installation guide rail of at least one for fixed installation, and the photovoltaic module is fixed by the installation guide rail
It is mounted in the mounting bracket of bottom.
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| CN201910689739.0A CN110391312A (en) | 2019-07-29 | 2019-07-29 | A kind of lightweight photovoltaic back and its photovoltaic module with high efficiency and heat radiation effect |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910689739.0A CN110391312A (en) | 2019-07-29 | 2019-07-29 | A kind of lightweight photovoltaic back and its photovoltaic module with high efficiency and heat radiation effect |
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