CN109904283A - A kind of interconnection autofrettage of solar battery and its solar cell module of manufacture - Google Patents
A kind of interconnection autofrettage of solar battery and its solar cell module of manufacture Download PDFInfo
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- CN109904283A CN109904283A CN201910197260.5A CN201910197260A CN109904283A CN 109904283 A CN109904283 A CN 109904283A CN 201910197260 A CN201910197260 A CN 201910197260A CN 109904283 A CN109904283 A CN 109904283A
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- 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
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
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Abstract
The invention discloses a kind of interconnection autofrettage of solar battery and its solar cell modules of manufacture.The existing silicon wafer solar components manufacturing process used is complicated, packaging cost height and complicated for operation, poor reliability.Heretofore described interconnection autofrettage is that film material will be made to carry out conductive combined processing, forms solar cell module after the conductive composite film and the lamination interconnection of stand-by diaphragm by conductive combined processing is formed；Solar cell module includes including preceding film layer, the first adhesive film, battery layers and conductive composite film in the present invention, and the preceding film layer, the first adhesive film, battery layers and conductive composite film are integrally formed.Interconnection autofrettage in the present invention is easy to operate, and the overall structure for manufacturing the solar cell module of formation is simple and reasonable, encapsulates reliable and stable.
Description
Technical field:
Present invention relates particularly to a kind of interconnection autofrettage of solar battery and its solar cell modules of manufacture.
Background technique:
Photovoltaic solar is important and with fastest developing speed one of renewable energy.Past during the decade, with PERC, black silicon
Technology is that the transfer efficiency of the crystal silicon solar batteries of representative is increased to 20% or more, is further increased highly difficult.Battery therebetween
Piece cost also obtains decline by a relatively large margin, but is mainly due to scale economy.
Currently, component package cost alreadys exceed cell piece cost in the cost structure of component.Further decrease component envelope
Dress up this, it has also become most area of the photovoltaic solar power generation levelized cost in China reaches or lower than power grid par
It is crucial.
Between past twenties years, divided by string welding machine replace artificial bring improving productivity and scale enlargement it
Outside, crystal silicon component encapsulation technology and technique there is no technological progress.Although there are some new technologies, such as more main grids, half
Piece, imbrication, optically focused welding, metal electrode, around technologies such as logical (EWT), are not implemented and seal in component around logical (MWT), emitter electrode
The technological change of dress technology and process aspect, and all because being limited existing for its technology itself, it is difficult to have by " scale economy "
Effect reduces component package cost.
Therefore, it is very necessary that new component package technology and technique are developed.Mainstream solar battery interconnection technique at present: will
Surface is coated with the copper strips of the solders such as terne metal, i.e. welding, is welded in the main gate line and the weldering of the adjacent cell piece back side of cell piece
Disk, usual welding temperature such as use lead-free solder at 230 DEG C or so, then welding temperature may also can be higher (depending on its ingredient
It is fixed).There are the following problems for mainstream solar battery and battery welding interconnection technique:
One, welding temperature is high, because the coefficient of expansion of copper and silicon differs greatly, the mechanical shock of welding process, thermal shock and its
Caused residual stress will cause main gate line two sides cell piece and generate micro-crack and the fracture of thin grid line, thus lead to the defeated of component
Power and reliability decrease out；
Two, grid line and welding shading-area are big, and output power is caused to decline；
Three, battery operating temperature is high, and output power is caused to decline；
Four, process is more, and complex process reduces system operation reliability；
Five, production efficiency is low, at high cost.
Therefore, using full back contact solar cell, i.e., the electrode of battery is in the solar-electricity of the non-illuminated surface of battery
Pond, while the fine wire for being coated with solder with more substitutes the interconnection technique (hereinafter referred to as " close gate technique ") of the scheme of welding
Scheme be taken seriously.
But current close gate technique encounters several technical difficulties, mainly has:
One, fine wire is bonded bad with cell piece when welding, and causes part fine wire that can not be formed between electrode good
Good combination, i.e., cannot form good Ohmic contact；
Two, fine wire and battery plate electrode exactitude position are difficult.
In order to solve the above problem one, currently existing scheme (i.e. scheme 1) is, when welding, the tool bullet that is placed in below cell piece
Property flexible plate or several top pillars jack up cell piece so that cell piece " protuberance "；Or bottom plate or top using " arching upward "
It is another to arrange there is the wire for being in 90 ° of angles with fine wire to push down, to improve being bonded between fine wire and cell piece, and same
One station completes welding.
Main problem existing for above-mentioned solution is: higher to equipment requirement, the complexity of mechanism and processing procedure reduces
The efficiency and reliability of processing procedure.On the other hand, because the contact surface of battery electrode and wire is small, wire and electricity after welding
The value of thrust of interpolar is low, rosin joint, or generation desoldering risk is big in the technical process such as subsequent typesetting, circuit connection, lamination.
In order to solve the above problem two, it produces and the wire for being covered with low-temperature alloy solder is fixed on film in advance.And with
The scheme (i.e. scheme 2) of battery interconnection is completed in lamination.Wire, the laminating technique of welding/film are hereinafter referred to as known as " laminating work
The film being consequently formed is known as " conductive laminating film " by skill ".Compared to scheme 1, the production efficiency of the program (scheme 2) is higher.But
Be also to thereby produce two problems: the selection of film is difficult, and increases process complexity and cost.EVA is most commonly seen
Photovoltaic encapsulation material membrane, not only due to its yield is big, price is low, also as its availability and physical and chemical performance, such as and cell piece
Adhesiveness, weatherability etc., obtained the reliability demonstration of prolonged application.
It is reasonably to select using EVA for encapsulating material performance.But because of the high ductibility and flexibility of EVA
Caused size is unstable, causes " laminating technique " process wire or welding location difficulty, and cell piece later with " lead
Location difficulty between the laminating film of electricity ".Therefore, " conductive laminating film " membrane material of scheme 2 usually selects polyethylene, polyacrylic lower
The PO film of ductility.It selects the PO films such as polyethylene, polypropylene as membrane material, cost is not only increased, also because of polyethylene, polypropylene
Bonding force between equal PO film and cell piece declines, and introducing combine between the encapsulating materials such as " conductive laminating film " and EVA long-term can
By property problem bring risk.The above problem is not solved effectively so far.
Summary of the invention:
To solve the problems, such as to refer in above-mentioned background technique, the purpose of the present invention is to provide a kind of the mutual of solar battery
Join the solar cell module of autofrettage and its manufacture.
A kind of interconnection autofrettage of solar battery will be made film material and carry out conductive combined processing, by conductive compound
The conductive composite film and the lamination of stand-by diaphragm that processing is formed form solar cell module after interconnecting.
As a preferred solution: film material manufacturing process: the second adhesive film and notacoria layer are put from respective material volume respectively
Material forms the one of physics fitting using the high surface energy and discharge partial air between the two of the second adhesive film and notacoria layer
Body thin film material.
As a preferred solution: conductive composite film manufacturing process:
Negative pressure below punching conveyer belt makes film material and wire be adsorbed in punching conveyer belt, and power wheel is rotated to drive
Punching conveyer belt simultaneously pulls on film material to the first operating platform；
Second adhesive film and the film material of notacoria layer fitting realize blowing by the first driving wheel system；
Wire realizes the blowing of wire by the second driving wheel system；
Upper and lower hot press operation process: film material passes through upper hot wind module with wire below on the first operating platform
And be bonded under the rolling mode of lower heating module, form conductive composite film；
Conductive composite film realizes blanking by third driving wheel system.
As a preferred solution: trimming operation: by the conductive composite film being press-fitted together as one by cutting device according to design ruler
Very little requirement carries out longitudinal cutting, prepares blanking after cutting out.
As a preferred solution: while conductive composite film carries out Compound Machining, on the second operating platform by preceding film layer into
Row transmits, film layer and the first adhesive film before being successively laid in transmit process, then multiple cell pieces are arranged in and are covered with the first glue film
In the preceding film layer of layer, stand-by diaphragm is formed.
As a preferred solution: conductive composite film is layed on the stand-by diaphragm, by the wire pair of conductive composite film
Quasi- battery plate electrode, then circuit connection is carried out, finally solar cell module is formed after lamination interconnects process.
The solar cell module manufactured using above-mentioned interconnection autofrettage, it includes preceding film layer, the first adhesive film, battery layers
And conductive composite film, the preceding film layer, the first adhesive film, battery layers and conductive composite film are integrally formed.
As a preferred solution: battery layers include multiple cell pieces, multiple cell piece horizontal alignments are arranged in the first adhesive film
Between conductive composite film, conductive composite film includes the second adhesive film, notacoria layer and wire, the wire, the second glue film
Layer and notacoria layer are arranged successively from top to bottom is made as one.
As a preferred solution: wire is replaced by welding.
As a preferred solution: the first adhesive film, the second adhesive film and intermediate rubber diaphragm are EVA film piece；Preceding film layer is
ETFE diaphragm, pvdf membrane piece, fep film piece or glass.
Compared with prior art, the invention has the benefit that
One, the present invention is whole by complementing each other to form between preceding film layer, the first adhesive film, battery layers and conductive composite film
Body structure is simple and reasonable, encapsulates reliable and stable.
Two, with traditional components packaging technology and the above-mentioned project plan comparison that wire is fixed on to PO film, because eliminating electricity
Pond series welding, typesetting process, processing procedure of the present invention are simpler, more reliable, more efficient.
Three, compared with traditional components packaging technology, because eliminating welding sequence, welding/lamination is once completed.Technique is more
Simple energy conservation.
Four, wire and is fixed on to the project plan comparison of PO film, because wire or welding are solid by so-called " laminating technique "
Due to such as by TPT+EVA bond constitute film when, due to TPT formed notacoria layer have good dimensional stability, EVA with
Good adhesion between TPT, wire and cell piece both can guarantee wire in the case where not introducing other transparent membrane materials
Accurate, stable fixation, in turn ensure the reliability of encapsulation, and technique is more simple and reliable.
Five, compared with the traditional components packaging technology that wire is directly welded in cell piece using string welding machine, the program
More simple and reliable, welding temperature is lower, welding effect is more preferable, because the wire being fixed on EVA can be more reliably by wire
Or welding is adjacent to cell piece.
Six, the present invention can be effectively reduced module operating temperature up to 3~6 DEG C, to reduce power caused by component heating
Loss.
Seven, the solder joint of cell piece is more in the present invention, more reliable, and even if sliver occurs, adverse consequences is also small.
Eight, present invention can apply to components translucent, semi-flexible, can also be applied to solar double-glass assemblies and double-side cell layer part.
Nine, the present invention can be made into component semi-flexible, when notacoria use transparent material, when such as ETFE+EVA, can be made into semi-transparent
Bright component.
Ten, for being suitable for crystal silicon back contacts solar cell, hetero-junctions back contact battery or other electrodes exist the present invention entirely
The back side and the battery arranged in horizontal line.
Detailed description of the invention:
Detailed description will be given by the following detailed implementation and drawings by the present invention for ease of explanation,.
Fig. 1 is front view structure diagrammatic cross-section of the invention；
Fig. 2 is the front view structure diagrammatic cross-section of conductive composite film；
Fig. 3 is the operating process schematic diagram for interconnecting autofrettage；
Fig. 4 is the overlooking state schematic diagram of present invention interconnection autofrettage operating process；
Fig. 5 is the electrical block diagram of cell piece.
In figure, film layer before 1-；The first adhesive film of 2-；3- cell piece；The second adhesive film of 4-；5- notacoria layer；6- wire；9-
Terminal box；The first driving wheel of 10-；The first deflecting roller of 11-；The first straining pulley of 12-；The first ion wind gun of 13-；14- second is actively
Wheel；15- punches conveyer belt；The second deflecting roller of 16-；The second straining pulley of 17-；18- locating slot；The first operating platform of 19-；On 20-
Hot wind module；Heating module under 21-；22- roller module；23- third driving wheel；24- third deflecting roller；25- third straining pulley；
The second ion wind gun of 26-；27- negative pressure chamber；28- high pressure blower；29- drag board；30- cutting device；31- blanking device；32-
Second operating platform.
Specific embodiment:
In order to make the objectives, technical solutions and advantages of the present invention clearer, below by shown in the accompanying drawings specific
Embodiment describes the present invention.However, it should be understood that these descriptions are merely illustrative, and it is not intended to limit model of the invention
It encloses.In addition, in the following description, descriptions of well-known structures and technologies are omitted, it is of the invention to avoid unnecessarily obscuring
Concept.
Here, it should also be noted that, in order to avoid having obscured the present invention because of unnecessary details, in the accompanying drawings only
Show with closely related structure and/or processing step according to the solution of the present invention, and be omitted little with relationship of the present invention
Other details.
Specific embodiment 1: present embodiment includes film material production work shown in as shown in Figure 1, Figure 2, Fig. 3, Fig. 4 and Fig. 5
Skill, conductive composite film manufacture craft, trimming operation, stand-by diaphragm manufacture craft and lamination interconnection process；
Film material manufacture craft: by the second adhesive film 4, notacoria layer 5 respectively since its material volume progress blowing, the second glue film is utilized
It layer 4 and the high surface energy of notacoria layer 5 and partial air between the two is discharged and forms the mistake of a roll of film material that physics is bonded
Journey；In the operating process at the first driving wheel 10, the first driving wheel 10 is matched with multiple first straining pulleys 12, by the second glue
Film, notacoria respectively enter on the first driving wheel 10 since its material volume, by utilizing second in multiple first straining pulley, 12 transmit process
Adhesive film 4 and the high surface energy of notacoria layer 5 and discharge partial air between the two and form a roll of film material that physics is bonded,
And it send to punching conveyer belt 15.
Conductive composite film manufacture craft:
The negative pressure chamber 27 of 15 lower section of punching conveyer belt makes film material and wire be adsorbed in punching conveyer belt 15, power wheel
Rotation is to drive punching conveyer belt 15 and pull on film material to the first operating platform 19；The lower section of negative pressure chamber 27 is connected with height
Pressure fan 28.
The film material that second adhesive film 4 and notacoria layer 5 are bonded passes through by the first driving wheel 10, the first deflecting roller 11, the
First driving wheel system of one straining pulley 12 and the first ion wind gun 13 composition realizes blowing function, and absorbs the first driving wheel 10
Punching conveyer belt 15 between speed difference, prevent adhesion；
Wire 6 17, two the second driving wheel 14, the second deflecting roller 16, the second straining pulley locating slots 18 by being made of
The second driving wheel system realize wire 6 blowing function, and absorb the second driving wheel 14 and punch conveyer belt 15 between speed
It is poor to spend, to prevent the sideslip of wire 6；
Upper and lower hot press operation process: it is flat in the first operation that film material is in the top of wire 6, film material and wire 6
By being bonded under upper hot wind module 20 and the rolling mode of lower heating module 21 on platform 19, conductive composite film is formed；
It is controllable that the temperature of lower heating module is adjustable, and heating temperature controls 60 according to the composition material of the second adhesive film 4~
Between 140 DEG C；Upper hot wind module 20 is made of one or several heat guns, is complementary heating, the temperature of upper hot wind module 20
And air quantity is adjustable；
The one or several roller modules 22 arranged above first operating platform 19, edge and punching 15 direction of motion of conveyer belt
It moves forward or backwards, speed and stroke are controllable, and control process is the prior art, and roller module 22 and punching conveyer belt 15 are transported
Dynamic direction is vertical and the direction of motion is reversed, and roller module 22 is made of the monomer roller module that one or several independences are total to frame, rolling
Wheel module 22 provides flexible, adjustable pressure, is integrally formed the fitting of wire 6, the second adhesive film 4 and notacoria layer 5 with realizing
Conductive composite film；
Conductive composite film passes through by third driving wheel 23, third deflecting roller 24, the second ion wind gun 26, drag board 29, more
The third driving wheel system that a third straining pulley 25 forms realizes blanking function, and absorbs third driving wheel 23 and punching conveyer belt
Speed difference between 15, to prevent adhesion；
Wire 6 also can be replaced welding in the above process；Notacoria layer 5 is notacoria glue film.
Trimming operation: the conductive composite film being press-fitted together as one is required to indulge by cutting device 30 according to design size
To cutting, prepare blanking after cutting out, into blanking device 31.
The manufacture craft of stand-by diaphragm:, will on the second operating platform 32 while conductive composite film carries out Compound Machining
Preceding film layer 1 and glass synchronize be transmitted, film layer 1 and the first adhesive film 2 before being successively laid in transmit process, then by multiple batteries
Piece 3 is arranged in the preceding film layer 1 for being covered with the first adhesive film 2, forms stand-by diaphragm.
Lamination interconnection process: the conductive composite film that Compound Machining is formed is sent to stand-by diaphragm by blanking device 31
Surface, and the conductive composite film is layed on the stand-by diaphragm, the wire 6 for being fixed on conductive composite film at this time is right
Quasi- battery plate electrode, is transported to next station by punching conveyer belt 15, carries out circuit connection, interconnects process subsequently into lamination；
The lamination interconnects process, i.e., by the laminating technology vacuumize, heat, pressurizeing, further by preceding film layer 1, the
One adhesive film 2, battery layers and conductive composite film encapsulation are integral, after being completed at the same time wire 6 and cell piece interconnection, form the sun
It can battery component.
Solar cell module can further install frame, terminal box and cable additional in the above process, that is, complete with frame,
The solar cell module manufacturing process of terminal box and cable, or be not outlined, form boundless frame-type solar cell module.
It is wrapped in the first driving wheel system, the second driving wheel system, third driving wheel system and roller module in the above process
The various equipment included are existing equipment, and the course of work for the various equipment mentioned in the above process is same as the prior art.
Specific embodiment 2: present embodiment includes preceding film layer 1, first shown in as shown in Figure 1, Figure 2, Fig. 3, Fig. 4 and Fig. 5
Adhesive film 2, battery layers and conductive composite film, preceding film layer 1, the first adhesive film 2, battery layers and conductive composite film are from top to bottom successively
Setting, battery layers include multiple cell pieces 3, the setting of multiple 3 horizontal alignments of cell piece the first adhesive film 2 and conductive composite film it
Between, conductive composite film includes the second adhesive film 4, notacoria layer 5 and wire 6, the wire 6, the second adhesive film 4 and notacoria layer
5 are arranged successively are made as one from top to bottom.The solar cell module is difunctional with photovoltaic power generation and building tile
Component, according to sampling test it is found that the solar cell module lightweight and ultra-thin, measures its thickness less than 5mm.
Further, wire 6 is replaced by welding.
Further, the first adhesive film 2, the second adhesive film 4 and intermediate rubber diaphragm 5-2 are EVA film piece.EVA film piece is
A kind of glue film is existing product.EVA film piece ethylene-vinyl acetate copolymer diaphragm.
Further, the shape of cell piece 3 is rectangle.Cell piece 3 is photovoltaic cell, specially PERC cell piece,
For existing product.
Further, multiple 3 rectangular arrays of cell piece are arranged between the first adhesive film 2 and wire 6.With the second glue
Film layer 4, the membrane material of notacoria layer 5 and wire 6 are made so-called " conductive laminating film " through so-called " laminating technique ", poly- without introducing
The new membrane material such as ethylene, polypropylene；Conductive composite film itself may make up a kind of notacoria layer, and conductive composite film is full-scale at this time,
I.e. conductive laminating film is complete notacoria layer 5.Specifically, its width is that component requires width, length can be by the length of component requirement
Degree is divided；Wire or welding are coated with low-temperature metal solder, and by full back contact battery piece, light downwards, is accurately put
Film layer 1 before being placed in, is then covered with conductive composite film, and the wire in conductive composite film or welding contact full back contacts electricity at this time
The electrode of pond piece 3；Realize that cell piece 3 interconnects with lamination.
Further, the upper surface of preceding film layer 1 is provided with terminal box 9, and terminal box 9 is connected with battery layers.Terminal box 9 is
Existing product is connected by route with multiple cell pieces 3, and the working condition of cell piece 3 is controlled.Terminal box 9 and cell piece 3
The course of work matched is same as the prior art.Cell piece 3 is crystal silicon solar battery, and the connection type of multiple cell pieces 3 is
Multi-thread mutual contact mode is connected by 12~22 one metal wires；Cell piece 3 is n-IBC, the interconnection of flexible transparent electrode film；
PERC battery or other efficient crystal silicon batteries, welding interconnection.
Specific embodiment 3: present embodiment is further limiting for specific embodiment one, battery layers above section
Referred to as preceding film layer 1, the lower surface of preceding film layer 1 and the first adhesive film 2 are bonding, and preceding film layer 1 is modified, to guarantee and EVA film piece
There are enough adhesive strengths, outer surface is handled through antireflective texture techniques.Preceding film layer 1 be ETFE diaphragm, pvdf membrane piece or
Fep film piece.ETFE diaphragm is ethylene tetrafluoroethylene polymer membrane, and pvdf membrane piece is Kynoar diaphragm, and fep film piece is fluorine
Change ethylene propylene polymerization object diaphragm.
Preceding film layer 1 is also optional: photovoltaic glass；Or the organic polymer films such as PVDF, FEP；
First adhesive film 2 is also optional: substituting EVA with the transparent polymerics film such as PO, PA, PE, PET.
Specific embodiment 4: battery layers are back contact battery, cell piece 3 is crystal silicon back contacts solar cell；Cell piece 3
Also optional: hetero-junctions back contact battery or other electrodes are entirely overleaf and in the battery of parallel lines arrangement.
Specific embodiment 5: present embodiment is further limiting for specific embodiment one, wire 6 is several gold
Belong to silk to arrange to be formed, oxygen-free copper；12~38；200~300 μm of diameter.Solder layer: BiPbSn alloy: Bi wt%:50~
52.5%；Pb wt%:28~32%；Sn wt%:15.5~22%.Or solder layer is optional: bismuth tin alloy: bismuth 57%, tin
43%；Indium stannum alloy: indium 51.7%, tin 48.3%；Bismuth sn-ag alloy: bismuth 57%, tin 41%, silver 2%；
Specific embodiment 6: welding is by more oxygen-free copper horizontal arranged in parallel shapes when wire 6 is replaced by welding
At the number of oxygen-free copper is 12~38；The width value range of oxygen-free copper is 0.6~2.4mm；Oxygen-free copper Thickness range
For 0.3~1.8mm.Solder layer: BiPbSn alloy: Bi wt%:50~52.5%；Pb wt%:28~32%；Sn wt%:
15.5~22%.Or solder layer is optional: bismuth tin alloy: bismuth 57%, tin 43%；Indium stannum alloy: indium 51.7%, tin 48.3%；Bismuth
Sn-ag alloy: bismuth 57%, tin 41%, silver 2%；
Specific embodiment 7: present embodiment is that specific embodiment one further limiting, be made notacoria layer 5 can
Material selection is as follows:
When notacoria layer 5 is the compound notacoria of TPT, below the compound notacoria of TPT, ingress of air face, the compound notacoria of TPT it is upper
Face, is bonded the face EVA, and the compound notacoria of TPT is that PVF, PET, PVF are compounded to form.
When notacoria layer 5 is the compound notacoria of TPE, below the compound notacoria of TPE, ingress of air face, the compound notacoria of TPE it is upper
Face is bonded the face EVA, and the compound notacoria of TPE is that PVF, PET, EVA are compounded to form.
Notacoria layer 5 is optional further include: upper layer EVA, PVDF, PO, PE or PA；Lower layer be ETFE, PVF, PO, PE or PA,
The composite membrane that can be also constituted for ETFE, PVF, PVDF and EVA.
Specific embodiment 8: present embodiment is the further of specific embodiment one, two, three, four, five, six or seven
It limits, the shape of each cell piece is rectangle in present embodiment, and multiple cell piece rectangular arrays are arranged in the first adhesive film
Between wire.
Specific embodiment 9: illustrating present embodiment, institute in present embodiment in conjunction with Fig. 1, Fig. 2, Fig. 3, Fig. 4 and Fig. 5
Stating interconnection autofrettage is that film material will be made to carry out conductive combined processing, the conductive composite film formed by conductive combined processing with
Solar cell module is formed after stand-by diaphragm lamination interconnection.
Further, film material manufacturing process: carrying out blowing from respective material volume respectively for the second adhesive film 4 and notacoria layer 5,
The one of physics fitting is formed using the high surface energy and discharge partial air between the two of the second adhesive film 4 and notacoria layer 5
Body thin film material.
Further, conductive composite film manufacturing process:
Punching conveyer belt below negative pressure make film material and wire 6 be adsorbed in punching conveyer belt 15, power wheel rotation with
It drives punching conveyer belt 15 and pulls on film material to the first operating platform 19；
The film material that second adhesive film 4 and notacoria layer 5 are bonded passes through by the first driving wheel 10, the first deflecting roller 11, the
The first driving wheel system realization blowing function of one straining pulley 12, the first ion wind gun 13 composition, and absorb the first driving wheel 10
Punching conveyer belt 15 between speed difference, prevent adhesion；
Wire 6 by be made of the second driving wheel 14, the second deflecting roller 16, the second straining pulley 17, locating slot 18
Two driving wheel systems realize the blowing function of wire 6, and absorb the second driving wheel 14 and punch the speed between conveyer belt 15
Difference, to prevent 6 sideslip of wire；
Upper and lower hot press operation process: it is flat in the first operation that film material is in the top of wire 6, film material and wire 6
By being bonded under upper hot wind module 20 and the rolling mode of lower heating module 21 on platform 19, conductive composite film is formed；
It is controllable that the temperature of lower heating module 21 is adjustable, by the heating and temperature control of the second adhesive film 4 at 100 DEG C；Upper hot wind
Module 20 is made of one or several heat guns, is complementary heating, the temperature and air quantity of upper hot wind module 20 are adjustable, adjust
Journey is the prior art.
The one or several roller modules 22 arranged above first operating platform 19, edge and punching 15 direction of motion of conveyer belt
It moves forward or backwards, speed and stroke are controllable, vertical with punching 15 direction of motion of conveyer belt and reversed, each roller module
22 are total to the idler wheel monomer module composition of frame by one or several independences, and roller module 22 provides flexible, adjustable pressure, with realize by
Wire 6, the second adhesive film 4 and the fitting of notacoria layer 5 are integrally formed conductive composite film；
Conductive composite film is passed by the third being made of third driving wheel, third deflecting roller, drag board, the second ion wind gun
Driving wheel system realizes blanking function, and absorbs the speed difference of driving wheel and punching transmission interband, to prevent adhesion.
Further, trimming operation: the conductive composite film being press-fitted together as one is wanted by cutting device according to design size
The longitudinal cutting of progress is asked, prepares blanking after cutting out.
Further, while conductive composite film carries out Compound Machining, preceding film layer is carried out on the second operating platform 32
It transmits, film layer 1 and the first adhesive film 2 before being successively laid in transmit process, then multiple cell pieces 3 is arranged in and are covered with the first glue film
In the preceding film layer 1 of layer 2, stand-by diaphragm is formed.
Further, by Compound Machining formed conductive composite film by blanking device 32 be sent to stand-by diaphragm just on
Side, and the conductive composite film is layed on the stand-by diaphragm, the wire 6 for being fixed on conductive composite film at this time is directed at electricity
The electrode of pond piece 3, is transported to next station by punching conveyer belt 15, carries out circuit connection, interconnects process subsequently into lamination；
Further, the lamination interconnects process, i.e., by the laminating technology vacuumize, heat, pressurizeing, further will before
Film layer 1, the first adhesive film 2, battery layers and conductive composite film encapsulation are integral, are completed at the same time battery in wire 6 and battery layers
After piece 3 interconnects, solar cell module is formed.Other unmentioned operating procedures are same as the specific embodiment one.
Claims (10)
1. a kind of interconnection autofrettage of solar battery, it is characterised in that: the interconnection autofrettage is that film material progress will be made
Conductive combined processing forms solar-electricity after the conductive composite film that conductive combined processing is formed is interconnected with the lamination of stand-by diaphragm
Pond component.
2. a kind of interconnection autofrettage of solar battery according to claim 1, it is characterised in that: film material made
Journey: the second adhesive film and notacoria layer are subjected to blowing from respective material volume respectively, utilize the high surface of the second adhesive film and notacoria layer
Can and partial air between the two be discharged and forms the integrated film material that physics is bonded.
3. a kind of interconnection autofrettage of solar battery according to claim 2, it is characterised in that: conductive composite film production
Process:
Negative pressure below punching conveyer belt makes film material and wire be adsorbed in punching conveyer belt, and power wheel rotation is to drive punching
Conveyer belt simultaneously pulls on film material to the first operating platform；
Second adhesive film and the film material of notacoria layer fitting realize blowing by the first driving wheel system；
Wire realizes the blowing of wire by the second driving wheel system；
Upper and lower hot press operation process: film material and wire below on the first operating platform by upper hot wind module and under
It is bonded under the rolling mode of heating module, forms conductive composite film；
Conductive composite film realizes blanking by third driving wheel system.
4. a kind of interconnection autofrettage of solar battery according to claim 3, it is characterised in that:
Trimming operation: the conductive composite film being press-fitted together as one is required to carry out longitudinal sanction according to design size by cutting device
It cuts, prepares blanking after cutting out.
5. a kind of interconnection autofrettage of solar battery according to claim 3, it is characterised in that: conductive composite film into
While row Compound Machining, preceding film layer is transmitted on the second operating platform, film layer and the before being successively laid in transmit process
One adhesive film, then multiple cell pieces are arranged in the preceding film layer for being covered with the first adhesive film, form stand-by diaphragm.
6. a kind of according to claim 1, interconnection autofrettage of solar battery described in 2,3,4 or 5, it is characterised in that: will lead
Electric composite membrane is layed on the stand-by diaphragm, the wire of conductive composite film is directed at battery plate electrode, then carry out circuit company
It connects, finally forms solar cell module after lamination interconnects process.
7. a kind of solar cell module formed using claim 1 manufacture, it is characterised in that: it includes preceding film layer, first
Adhesive film, battery layers and conductive composite film, the preceding film layer, the first adhesive film, battery layers and conductive composite film are integrally formed.
8. solar cell module according to claim 7, it is characterised in that: battery layers include multiple cell pieces, multiple
Cell piece horizontal alignment is arranged between the first adhesive film and conductive composite film, and conductive composite film includes the second adhesive film, notacoria
Layer and wire, the wire, the second adhesive film and notacoria layer are arranged successively are made as one from top to bottom.
9. solar cell module according to claim 7 or 8, it is characterised in that: wire is replaced by welding.
10. solar cell module according to claim 9, it is characterised in that: the first adhesive film, the second adhesive film and in
Between glue film be EVA film piece；Preceding film layer is ETFE diaphragm, pvdf membrane piece, fep film piece or glass.
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