CN207368976U - A kind of photovoltaic module in double circuit circuit - Google Patents

A kind of photovoltaic module in double circuit circuit Download PDF

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Publication number
CN207368976U
CN207368976U CN201721406631.9U CN201721406631U CN207368976U CN 207368976 U CN207368976 U CN 207368976U CN 201721406631 U CN201721406631 U CN 201721406631U CN 207368976 U CN207368976 U CN 207368976U
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China
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circuit
photovoltaic module
plate
double
array
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CN201721406631.9U
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Inventor
张雨军
陶爱兵
唐洪
张欢欢
沈佳
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Jiangsu Chuangxin Energy Technology Co.,Ltd.
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Suzhou Innovation Energy Technology Co Ltd
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/50Photovoltaic [PV] energy

Abstract

The utility model discloses a kind of photovoltaic module in double circuit circuit, including laminate, the laminate from top to bottom includes foreboard, preceding encapsulating material, battery layers, post package material and back plate successively, and the battery layers have two independent circuit loops.The utility model double circuit circuit photovoltaic module is designed using multiloop, the positive and negative anodes output of two groups of independence is formed, when component shades, it is possible to reduce the cell piece quantity being short-circuited;After component is installed by array, the lead-out wire of whole array is drawn from same direction, is reduced increase by one with array with long cable, is reduced the structure design that equipment newly increases fixed cable, be also convenient for the movement of photovoltaic module array;Foreboard uses high molecular material plate, and back plate enhances the structural strength of photovoltaic module, alleviate lightweight packages, suitable in locomotive carrier vehicle, having application prospect well using materials such as high molecular material plate, inorganic material plate or metallic plates.

Description

A kind of photovoltaic module in double circuit circuit
Technical field
It the utility model is related to photovoltaic module technical field, and in particular to a kind of photovoltaic module in double circuit circuit.
Background technology
Ground with the continuous consumption and the rise of energy prices, the utilization of new energy of the energy as current energy field The major subjects studied carefully.Due to solar energy have the advantages that it is pollution-free, without region limitation and it is inexhaustible, study solar power generation As one of popular direction to tap a new source of energy.It is that people use the one of solar energy using solar cell power generation at this stage Kind major way.
With the extension of photovoltaic module application range, more and more components are applied to a variety of place occasions, Conventional photovoltaic module is only designed with two lead-out wires, a cathode and an anode, as shown in Figure 1(Stain is omission in figure Number).The installation of conventional photovoltaic power station is using single either multiple rows of mode that is connected in series when string formation connects for single or odd row When, its positive and negative anodes is at the both ends of string formation, in order to form a circuit, have to when power station is installed increase by one and array Same long cable, as shown in Figure 2(Stain is ellipsis in figure), so that positive and negative polar curve is drawn from the same end of string formation, increase The electric wire added not only cost of idleness, but also add resistance, causes actual generating efficiency to be less than the generating efficiency of design, causes Unnecessary energy waste.
Since general components only have 2 lead-out wires, need to draw one with array after bunchiness with long cable, in some warps Perseverance mobile application equipment is influenced by structure, it is necessary to do single fixed design to the cable newly increased, be have impact on and beautiful is also increased Design cost is added.Under the service condition that component needs regular movement, conventional component, as foreboard, is used using glass The photovoltaic module weight that glass is fabricated to is big and frangible, can occur in moving process is carried broken or cell piece damage occurs Situation.
On the other hand, current half cell piece, 1/3 ~ 1/5 cell piece component will be more and more used for component Production, since cell piece is fragmented, arranges, the electric current and voltage of photovoltaic module will greatly change, nothing according to conventional typesetting Method adapts to existing inverter.
The content of the invention
In view of this, in order to overcome prior art the defects of, the purpose of this utility model are to provide a kind of double circuit circuit Photovoltaic module, reasonable in design, light-weight, thickness is thin, and security performance is high, applied widely.
In order to achieve the above object, the utility model uses following technical solution:
A kind of photovoltaic module in double circuit circuit, including laminate, the laminate from top to bottom include foreboard, preceding successively Encapsulating material, battery layers, post package material and back plate, the battery layers have two independent circuit loops.
Preferably, each circuit loop has a positive outside wire and a negative outside wire.
It is further preferred that the positive outside wire and negative outside wire positioned at described photovoltaic module the same side are alternately set Put.
It is further preferred that the positive outside wire and negative outside wire of adjacent photovoltaic component opposite position are connected with each other.
Preferably, the back plate is the metallic plate by insulation processing.The thickness of the metallic plate is 0.01-0.5mm, than The thickness of conventional 2.5mm or 2.0mm glass want it is thin very much.Had using metal material as the back plate of photovoltaic module following excellent Point:Metal material overleaf supports whole photovoltaic module, and the weight of the burning block in performance test is not any to metal rear plate Challenge, metal material still can keep extraordinary form and structural strength in the high temperature more than 1000 DEG C, pass through routine A level flammability tests there is no any problem, be not in metal rear plate perforation or come off, roof building light can be evaded completely Lie prostrate the risk of application;Back plate is metal integral material, very fast in terms of heat conduction, is the 50 of conventional glass material thermal conductivity factor Times, therefore be not in the problems such as hot spot fails, all it is obviously improved, can drops in terms of the operating temperature of component and coefficient of heat transfer The surface Working Temperature of low component, also improves the work generated energy of photovoltaic module., can be long-term under the conditions of corrosion is controlled Use.
It is further preferred that there is impression on the metallic plate.
It is further preferred that the metallic plate of the insulation processing is to have insulated paint on the metallic plate.
It is further preferred that the metallic plate of the insulation processing has insulation for the metallic plate close to the battery layers side Layer.The material of the insulating layer is PET, glass mat, soft ceramics, flexible stone or asbestos board.
It is further preferred that there is gluing layer between the insulating layer and the metallic plate.The material of the gluing layer is EVA, POE, PVB, silica gel or glue.Wherein:EVA is ethylene-vinyl acetate copolymer(ethylene-vinyl acetate copolymer), POE is polyolefin elastomer(polyolefin elastomer), PVB is polyvinyl butyral resin (polyvinyl butyral).
Preferably, the back plate is high molecular material plate, flexible stone, soft ceramics or asbestos board.
In certain embodiments, the material of foreboard for simple glass, ultra-thin tempered glass or ETFE, FEP, PCTG, PC, PET、PMMA.Wherein:ETFE is ethylene-tetrafluoroethylene copolymer(ethylene-tetra-fluoro-ethylene), FEP is Fluorinated ethylene propylene copolymer(fluorinated ethylene propylene), PCTG is a kind of armorphous copolyester, PC For makrolon(polycarbonate), PET is pet resin, and PMMA is poly-methyl methacrylate Ester.Back plate can also use the materials such as PC plate, PMMA plates, pcb board, epoxy plate, metallic plate.Encapsulating material can use conventional The materials such as EVA, POE, PVB, can also be encapsulated using organic gels such as organic silica gel, glue, hot melt adhesive.The utility model is applicable in In conventional single, polycrystalline cell piece, suitable for N double-side cells piece, hetero-junction solar cell piece, black silicon cell, PERC cell pieces With 1 ~ 1/36 cell piece of burst cell piece.
Due to the implementation of above technical scheme, the utility model has the following advantages that compared with prior art:
1. the utility model double circuit circuit photovoltaic module is designed using multiloop, i.e. the inside of a block assembly has two Single circuit, forms the positive and negative anodes output of two groups of independence, when component shades, it is possible to reduce the battery the piece number being short-circuited Amount;
2. the utility model double circuit circuit photovoltaic module reduces cable cost and convenient in carrying, when component presses array After installation, the circuit in single photovoltaic module and the circuit of adjacent component can be attached according to design requirement, whole battle array Arrange and form a big circuit, the lead-out wire of whole array is drawn from same direction, reduces increase by one with array with length Cable, reduces the structure design that equipment newly increases fixed cable, has been also convenient for the movement of photovoltaic module array;
3. the foreboard of the utility model double circuit circuit photovoltaic module is thin using PC plate, etfe film, FEP films, PET Film, PCTG plates, PMMA plates or substratum transparent, simple glass plate, ultra-thin armorplate glass etc., back plate using PC plate, PMMA plates, Pcb board, epoxy plate, metallic plate etc., not only increase the structural strength of photovoltaic module, and alleviate the weight of photovoltaic module, Facilitate and the broken of plate is prevented while carrying;
4. the utility model double circuit circuit photovoltaic module utilizes the characteristics of burst cell piece, cell piece is carried out again Typesetting, the output electric current and voltage identical with general components, can adapt to current power station installation system;
5. the utility model double circuit circuit photovoltaic module is applied widely, suitable for conventional single, polycrystalline battery The cell pieces such as piece, N double-side cells piece, hetero-junction solar cell piece, black silicon cell, PERC cell pieces, and suitable for section burst 1 ~ 1/36 cell piece of cell piece;
6. the movement of the utility model double circuit circuit photovoltaic module is convenient, light-weight, suitable for being frequently necessary to movement In equipment or occasion, vehicle-carried mobile photovoltaic module can be used as.
Brief description of the drawings
Fig. 1 is photovoltaic module circuit diagram in the prior art;
Fig. 2 is photovoltaic module array circuit schematic diagram in the prior art;
Fig. 3 is the schematic diagram of double circuit circuit photovoltaic module in the utility model embodiment;
Fig. 4 is the schematic diagram of double circuit circuit photovoltaic module array in the utility model embodiment;
Fig. 5 is the circuit diagram of double circuit circuit photovoltaic module in the utility model embodiment;
Fig. 6 is the circuit diagram of double circuit circuit photovoltaic module array in the utility model embodiment;
Fig. 7 is the stacking figure of laminate in the photovoltaic module of double circuit circuit in the utility model embodiment one;
Fig. 8 be in the utility model embodiment one in photovoltaic module on metallic plate impression schematic diagram;
Fig. 9 is the stacking figure of laminate in the photovoltaic module of double circuit circuit in the utility model embodiment two;
In attached drawing:Foreboard -1, preceding encapsulating material -2, battery layers -3, cell piece -31, post package material -4, back plate -5, pressure Trace -51, insulating layer -6, gluing layer -7, positive outside wire -8, negative outside wire -9, cable -10, photovoltaic module -11.
Embodiment
The utility model preferred embodiment is described in detail below in conjunction with the accompanying drawings.
Embodiment one
Refer to Fig. 3-8, a kind of double circuit circuit photovoltaic module of the present embodiment, including laminate and cladding laminate side The frame on side, laminate from top to bottom include foreboard 1, preceding encapsulating material 2, battery layers 3, post package material 4 and back plate successively 5, battery layers 3 have two independent circuit loops.
Each circuit loop has a positive outside wire 8 and a negative outside wire 9, and is located at the photovoltaic group respectively The both sides of part.Positive outside wire 8 and negative outside wire 9 positioned at photovoltaic module the same side are arranged alternately.Adjacent photovoltaic component phase The positive outside wire 8 and negative outside wire 9 of correspondence position are connected with each other.
There are two independent circuit loops, as shown in Fig. 3,5, stain in figure in single photovoltaic module in the present embodiment For ellipsis, to replace identical cell piece 3.When the negative outside wire 9 that the upper left corner of photovoltaic module is first circuit loop When, then the upper right corner of photovoltaic module is the positive outside wire 8 of first circuit loop.The lower left corner of photovoltaic module is second electricity The positive outside wire 8 in road circuit, the lower right corner of photovoltaic module are the negative outside wire 9 of second circuit loop.Adjacent photovoltaic Component is also same setting, so when photovoltaic module is mounted to array, directly by the mutually close cathode of adjacent photovoltaic component Lead-out wire 8 and negative outside wire 9 correspond to connection, and installation is very convenient.And directly pass through in the end of photovoltaic module array One section of cable close with photovoltaic module length connects positive outside wire 8 and negative outside wire 9, as shown in Fig. 4,6, in figure Stain is ellipsis, to replace identical photovoltaic module.The usage amount of cable is saved, reduces cost, and facilitate photovoltaic The movement of component.
Back plate is metallic plate 5 in the present embodiment, and is steel plate 5.Although encapsulating material is isolation material, can play certain Insulating effect, but laminate press process when, encapsulating material can be extruded, and cause battery layers 3 still to be possible to connect Metallic plate 5 is contacted, so needing to do insulation processing between metallic plate 5 and battery layers 3.Insulation processing in the present embodiment be Coated with insulating materials to play the role of insulation on the surface of steel plate 5, insulating materials can be insulated paint.
As shown in figure 9, being provided with impression 51 in the present embodiment on metallic plate 5, to increase the elongation of metallic plate 5, keep away Exempt from because the inconsistent component warpage issues caused after lamination of front and rear panel material shrinking percentage.51 biomass of impression and arrangement can roots It is configured according to actual demand, can be set to the direction parallel with photovoltaic module length, is can be configured as wide with photovoltaic module Parallel direction is spent, an impression can continuously be set, and can also be interrupted setting.
In actual application, insulated paint can be not only coated with steel plate 5, colour-wash, coating can also be coated with Color can be made choice according to the requirement of client, accomplish not only beautiful and the protection to metallic plate can be formed so as to increase The service life of photovoltaic module.
The present embodiment is assembled with frame in order to increase the structural strength of component, in laminate surrounding, and frame can use normal The c-type frame of rule, can also use super-thin frame.
The present embodiment uses back plate of the metal material as photovoltaic module, has the following advantages that:Metal material is overleaf Whole photovoltaic module is supported, the weight of the burning block in performance test does not have metal rear plate any challenge, and metal material is super Crossing still can keep extraordinary form and structural strength in 1000 DEG C of high temperature, not have by conventional A level flammability tests Any problem is not in metal rear plate perforation or is come off, and can evade the risk of roof building photovoltaic application completely;Back plate It is very fast in terms of heat conduction for metal integral material, it is 50 times of conventional glass material thermal conductivity factor, therefore be not in hot spot The problems such as failure, be all obviously improved in terms of the operating temperature of component and coefficient of heat transfer, can reduce the surface work temperature of component Degree, also improves the work generated energy of photovoltaic module., can be with long-time service under the conditions of corrosion is controlled.
Using the rigidity of back plate metal material, with reference to insulating treatment process, the foreboard of photovoltaic module can reduce thickness or Person's intensity requirement, the weight of photovoltaic module entirety decline, it is possible to achieve low weight high-performance, and it is whole further to reduce photovoltaic module The cost of body.So foreboard 1 can use macromolecule transparent material to substitute traditional glass further to reduce photovoltaic module Weight and thickness, foreboard 1 can be PC plate, etfe film, FEP films, PET film, PCTG plates, PMMA plates or substratum transparent, general Logical glass plate, ultra-thin armorplate glass etc..
N double-side cells piece, hetero-junction solar cell piece, black silicon electricity can be selected in cell piece 31 in the battery layers 3 of the present embodiment Pond piece, PERC cell pieces, also can be selected section burst 1 ~ 1/36 cell piece of cell piece.
Embodiment two
Fig. 3-6 and Fig. 9 are referred to, a kind of double circuit circuit photovoltaic module and embodiment one of the present embodiment are essentially identical, Insulation processing of the distinctive points between metallic plate 5 in this present embodiment and battery layers 3 is metallic plate 5 close to the one of battery layers 3 There is insulating layer 6 to reach preferably insulation effect for side.The material of insulating layer 6 is PET, glass mat, soft ceramics, flexible stone Material or asbestos board.
There is gluing layer between insulating layer 6 and metallic plate 5.The material of gluing layer is conventional encapsulating material such as EVA, POE, PVB etc..Wherein EVA is ethylene-vinyl acetate copolymer(ethylene-vinyl acetate copolymer), POE is poly- Olefin elastomer(polyolefin elastomer), PVB is polyvinyl butyral resin(polyvinyl butyral).
The present embodiment has also carried out surface anticorrosive processing for metallic plate 5 and has reached more permanent service life, its table Face is by aluminium-plated, spray zinc, zinc-plated, chromium plating, the processing such as anode to meet invading for outdoor long-term weather humiture and ultraviolet sunlight Erosion.
Embodiment three
A kind of double circuit circuit photovoltaic module and embodiment two of the present embodiment are essentially identical, and distinctive points are the present embodiment The material of middle gluing layer 7 is silica gel or glue.It is using the advantages of silica gel or glue:Since the heat of foreboard 1 and metallic plate 5 is received Shrinkage is different, if needing to be heated when laminate presses using conventional encapsulating material, so as to cause laminate to be produced Raw deformation, and under conditions of only needing 50 ~ 90 DEG C with organic silica gel or glue, directly press, so as to avoid being laminated The deformation of part, reduces fraction defective.
Example IV
A kind of double circuit circuit photovoltaic module and embodiment two of the present embodiment are essentially identical, and distinctive points are the present embodiment In on the surface of metallic plate 5 after anti-corrosion treatment, be also coated with insulated paint, i.e., in this implementation have double insulation processing To reach preferably insulation effect.
When insulating layer 6 is transparent high molecular material, metallic plate 5 can also be coated with colour-wash.The color of coating It can be made choice according to customer requirement, accomplish not only beautiful but also the protection to metallic plate can be formed so as to add photovoltaic group The service life of part.
Embodiment five
A kind of double circuit circuit photovoltaic module and embodiment one of the present embodiment are essentially identical, and distinctive points are the present embodiment In back plate be inorganic material plate, concretely flexible stone, soft ceramics, asbestos board or high molecular material plate such as PC plate, PMMA Plate, pcb board, epoxy plate etc., and the inorganic material plate of different colours can be used to reach beautiful function, using this back plate Material can be also used for building in Photovoltaic Building Integration, directly secure the assembly on exterior wall.
Embodiment six
A kind of double circuit circuit photovoltaic module and embodiment five of the present embodiment are essentially identical, and distinctive points are the present embodiment In in metallic plate 5 there is insulating layer 6 to reach preferably insulation effect close to battery layers side.The material of insulating layer 6 for PET, Glass mat, soft ceramics, flexible stone or asbestos board.And since part inorganic material plate is non-watertight, increase insulating layer 6 can be with Complementation is formed more efficiently to play the role of waterproof with back plate 5, extends the service life of photovoltaic module.
There is gluing layer 7 between insulating layer 6 and metallic plate 5.The material of gluing layer 7 is conventional encapsulating material such as EVA, POE, PVB or silica gel, glue.
Embodiment seven
A kind of double circuit circuit photovoltaic module and embodiment one of the present embodiment are essentially identical, and distinctive points are the present embodiment Foreboard 1 and back plate 5 be PC plate, PC plate has the characteristics that light-weight, hardness is high and structure is strong so that double electricity of the present embodiment Road circuit photovoltaic module overall weight reduces but intensity is high, Mobile portable, suitable for the photovoltaic application product of regular movement It is interior, such as in locomotive carrier vehicle.
The utility model double circuit circuit photovoltaic module is designed using multiloop, i.e. the inside of a block assembly has two individually Circuit, the positive and negative anodes output of two groups of independences is formed, when component shades, it is possible to reduce the cell piece quantity being short-circuited; After component is installed by array, the single circuit in component and the circuit of adjacent component can be connected according to design requirement, Whole array or odd number display to form a big circuit, and the lead-out wire of whole array is drawn from same direction, reduces increase A piece cable with array with length, reduces the structure design that equipment newly increases fixed cable;Foreboard uses ultra-thin tempered glass The materials such as plate, PC plate, etfe film, FEP films, PET film, PCTG plates, PMMA plates or substratum transparent, back plate using PC plate, The materials such as PMMA plates, pcb board, epoxy plate, metallic plate, not only increase the structural strength of photovoltaic module, and alleviate component Weight, facilitates and the broken of plate is prevented while carrying;The characteristics of using burst cell piece, cell piece is carried out again Typesetting, the output electric current and voltage identical with general components, can adapt to current existing power station installation system;The scope of application Extensively, suitable for conventional single, polycrystalline cell piece, N double-side cells piece, hetero-junction solar cell piece, black silicon cell, PERC cell pieces Deng cell piece, and suitable for section burst 1 ~ 1/36 cell piece of cell piece;The utility model double circuit circuit photovoltaic module Movement is convenient, light-weight, suitable for being frequently necessary to mobile equipment or occasion, can be used as vehicle-carried mobile photovoltaic module, have Application prospect well.
Above-described embodiment is only the technical concepts and features for illustrating the utility model, and its object is to allow be familiar with technique Personage can understand the content of the utility model and implement according to this, the scope of protection of the utility model can not be limited with this, All equivalent change or modifications made according to the utility model Spirit Essence, should all cover the scope of protection of the utility model it It is interior.

Claims (7)

1. a kind of photovoltaic module in double circuit circuit, including laminate, the laminate from top to bottom includes foreboard, preceding envelope successively Package material, battery layers, post package material and back plate, it is characterised in that:The battery layers have two independent circuit loops; Each circuit loop has a positive outside wire and a negative outside wire;Institute positioned at described photovoltaic module the same side State positive outside wire and negative outside wire is arranged alternately;The positive outside wire and anode of adjacent photovoltaic component opposite position are drawn Line is connected with each other.
A kind of 2. photovoltaic module in double circuit circuit according to claim 1, it is characterised in that:The back plate is by exhausted The metallic plate of edge processing.
A kind of 3. photovoltaic module in double circuit circuit according to claim 2, it is characterised in that:Have on the metallic plate Impression.
A kind of 4. photovoltaic module in double circuit circuit according to claim 2, it is characterised in that:The gold of the insulation processing Belong to plate for there is insulated paint on the metallic plate.
A kind of 5. photovoltaic module in double circuit circuit according to claim 2, it is characterised in that:The gold of the insulation processing Belong to plate has insulating layer for the metallic plate close to the battery layers side.
A kind of 6. photovoltaic module in double circuit circuit according to claim 5, it is characterised in that:The insulating layer with it is described There is gluing layer between metallic plate.
A kind of 7. photovoltaic module in double circuit circuit according to claim 1, it is characterised in that:The back plate is macromolecule Plate of material, flexible stone, soft ceramics or asbestos board.
CN201721406631.9U 2017-10-27 2017-10-27 A kind of photovoltaic module in double circuit circuit Active CN207368976U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201721406631.9U CN207368976U (en) 2017-10-27 2017-10-27 A kind of photovoltaic module in double circuit circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201721406631.9U CN207368976U (en) 2017-10-27 2017-10-27 A kind of photovoltaic module in double circuit circuit

Publications (1)

Publication Number Publication Date
CN207368976U true CN207368976U (en) 2018-05-15

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Country Link
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Address after: 214400 No. 37, Panlongshan Road, Jiangyin City, Wuxi City, Jiangsu Province

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