CN110335912A - Photovoltaic conductive glass, solar battery solar double-glass assemblies and preparation method thereof - Google Patents
Photovoltaic conductive glass, solar battery solar double-glass assemblies and preparation method thereof Download PDFInfo
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- CN110335912A CN110335912A CN201910604026.XA CN201910604026A CN110335912A CN 110335912 A CN110335912 A CN 110335912A CN 201910604026 A CN201910604026 A CN 201910604026A CN 110335912 A CN110335912 A CN 110335912A
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- 239000011521 glass Substances 0.000 title claims abstract description 179
- 230000000712 assembly Effects 0.000 title claims abstract description 14
- 238000000429 assembly Methods 0.000 title claims abstract description 14
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- 239000002313 adhesive film Substances 0.000 claims abstract description 59
- 239000002184 metal Substances 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 claims description 16
- 239000003292 glue Substances 0.000 claims description 15
- 238000004806 packaging method and process Methods 0.000 claims description 13
- 238000003475 lamination Methods 0.000 claims description 8
- 230000005611 electricity Effects 0.000 claims description 7
- 238000009413 insulation Methods 0.000 claims description 5
- 238000012360 testing method Methods 0.000 claims description 5
- 238000007747 plating Methods 0.000 claims description 3
- 238000005538 encapsulation Methods 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 74
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- 238000010586 diagram Methods 0.000 description 20
- 238000013461 design Methods 0.000 description 13
- 239000012634 fragment Substances 0.000 description 13
- 238000003466 welding Methods 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000004020 conductor Substances 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 238000007639 printing Methods 0.000 description 3
- 239000012790 adhesive layer Substances 0.000 description 2
- 238000005229 chemical vapour deposition Methods 0.000 description 2
- 239000000549 coloured material Substances 0.000 description 2
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- 238000010438 heat treatment Methods 0.000 description 2
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- 239000000463 material Substances 0.000 description 2
- 238000012805 post-processing Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
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- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000003698 laser cutting Methods 0.000 description 1
- 238000004021 metal welding Methods 0.000 description 1
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- 238000012536 packaging technology Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
- H01L31/042—PV modules or arrays of single PV cells
- H01L31/048—Encapsulation of modules
- H01L31/0488—Double glass encapsulation, e.g. photovoltaic cells arranged between front and rear glass sheets
-
- 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
- H01L31/042—PV modules or arrays of single PV cells
- H01L31/05—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells
- H01L31/0504—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells specially adapted for series or parallel connection of solar cells in a module
- H01L31/0508—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells specially adapted for series or parallel connection of solar cells in a module the interconnection means having a particular shape
-
- 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)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Photovoltaic Devices (AREA)
Abstract
The present invention provides a kind of photovoltaic conductive glass, solar battery solar double-glass assemblies and preparation method thereof, the photovoltaic conductive glass includes: glass, first conductive structure, second conductive structure and adhesive film, the adhesive film is covered on the glass inner side to clamp first conductive structure and second conductive structure between the adhesive film and the glass, electrode connection opening is equipped on the adhesive film at position corresponding with first conductive structure, conducting is connect with first conductive structure so that the electrode at the battery strings both ends passes through electrode connection opening, first conductive structure includes conductive layer, the conductive layer is arranged between the glass and the adhesive film.Photovoltaic conductive glass according to an embodiment of the present invention can substitute traditional metal bus bars+encapsulation notacoria+photovoltaic glass when carrying out the assembling of solar battery solar double-glass assemblies.
Description
Technical field
The present invention relates to photovoltaic cell technical fields, and in particular to the double glass groups of a kind of photovoltaic conductive glass, solar battery
Part and preparation method thereof.
Background technique
Imbrication solar battery solar double-glass assemblies are in the important hair that visible future is high performance solar batteries component
Route is opened up, imbrication feature of the module is exactly that traditional full wafer cell piece is cut into several small pieces (1/4,1/5,1/6 etc., Ke Yijun
Point, can not also divide equally), conducting resinl is then coated on the electrode of cell piece, the edge of adjacent cell piece is using overlapping up and down
Arrangement, is joined together to form battery strings for cell piece after conductive adhesive curing.Do so i.e. can be used conducting resinl substitute it is traditional
Metal welding band, on the one hand conductive glue connection flexible can reduce stress, and group can be improved in another aspect seamless connectivity mode
The utilization rate of part area, then lifting assembly efficiency, generates more electric power outputs in effective unit area.
In order to avoid the bring hot spot risk that is locally blocked in component operation, usually there are several battery strings in a block assembly
Combination forms battery strings group, and bypass diode in parallel solves these problems again in battery strings.Coupling unit is actual to use feelings
Condition, according in component number of batteries number, usually want 2~4 bypass diodes in parallel to differ.
It is existing by U.S. Sun power as the company of representative add diode and connection battery strings group in the way of be
The head and the tail of battery strings connect metal bus bars lead-out wire, and then lead-out wire serves as electrode or connection diode.
But this method disadvantage includes: the utilization rate in order to improve area, can be hidden in as far as possible metal bus bars
Cell backside, and busbar is usually parallel to one end of bypass diode by way of module backside wire jumper, that is to say, that
Usually there are 4 to 8 wire jumpers to be parallel on 2-4 bypass diode in component, not only increases operation complexity, and fragment rate
Height, the degree of automation are low.
Summary of the invention
In view of this, saving busbar design the purpose of the present invention is to provide a kind of photovoltaic conductive glass, realizing component
The convenience of middle circuit connection, while the degree of automation that can reduce fragment rate, improve component, increase the production capacity of component.
It is another object of the present invention to provide a kind of double glass groups of solar battery with above-mentioned photovoltaic conductive glass
Part.
Yet another object of the invention is that providing a kind of preparation method of above-mentioned solar battery solar double-glass assemblies.
In order to solve the above technical problems, the invention adopts the following technical scheme:
The photovoltaic conductive glass of embodiment according to a first aspect of the present invention, comprising:
Glass, the glass are equipped with through-hole；
First conductive structure, first conductive structure are arranged in the inside both ends of the glass and along the glass transverse directions
Extend, first conductive structure is used to connect conducting with the electrode at battery strings both ends；
Second conductive structure, second conductive structure are arranged in the inside of the glass and vertically prolong along the glass
It stretches, one end of second conductive structure is connected with first conductive structure and the other end passes through the through-hole and extends to glass
The other side of glass；And
Adhesive film, the adhesive film are covered on the glass inner side to clamp institute between the adhesive film and the glass
The first conductive structure and second conductive structure are stated, on the adhesive film at position corresponding with first conductive structure
It connects and is open equipped with electrode, so that the electrode at the battery strings both ends is open and the described first conductive knot across electrode connection
Structure connection conducting,
First conductive structure includes the conductive layer being set up directly on the glass.
Further, first conductive structure further includes insulating layer, and the insulating layer is arranged in the conductive layer and institute
It states between adhesive film.
Further, electrode connection opening is monoblock type or discontinuous is arranged multiple, and electrode connection is opened
Mouth extends downwardly until the conductive layer.
Further, second conductive structure, which is sequentially laminated with since the glass surface towards the adhesive film, leads
Electric layer and insulating layer, the conductive layer and insulating layer of second conductive structure respectively with first conductive structure
Conductive layer and insulating layer connect one to one, the other end of second conductive structure is equipped with and the conductive layer
The output electrode of conducting is connected, and the output electrode passes through the through-hole and extends to the other side of glass.
Further, the output electrode is connected by metal electrode connection unit with the conductive layer.
Further, the conductive layer is formed on the glass by the method for plating.
Further, third conductive structure, the third conduction knot are additionally provided between the adhesive film and the glass
Structure is located at the middle inside of the glass and is laterally extended along the glass, the third conductive structure from the glass surface by
It is interior to being sequentially laminated with the conductive layer to connect one to one respectively with the conductive layer of first conductive structure and insulating layer outside
And insulating layer, wherein the adhesive film with the third conductive structure it is vertical on both sides of the edge opposite position at
Two rows of electrode connection openings also are provided with, every row includes multiple electricity arranged spaced apart of a monoblock type or discontinuous
Pole connection opening, Open Side Down extends to the conductive layer for electrode connection.
Further, on the glass with first conductive structure, the second conductive structure and third conductive structure
Groove, first conductive structure, the second conductive structure and third conductive structure difference are respectively equipped at corresponding position
It is laid in the groove.
The solar battery solar double-glass assemblies of embodiment according to a second aspect of the present invention successively include glass cover from bottom to up
Plate, packaging adhesive film, battery strings and photovoltaic conductive glass described in any of the above embodiments, wherein the electricity at the both ends of the battery strings
Pole connect conducting with the first conductive structure in the photovoltaic conductive glass.
The preparation method of the solar battery solar double-glass assemblies of embodiment includes the following steps: according to a third aspect of the present invention
Step S1, provides battery strings, and the battery strings both ends are respectively provided with electrode；
Step S2 provides photovoltaic conductive glass as described in any one of the above embodiments；
Step S3, in either the electrode of the battery strings and/or the electrode connection opening of the photovoltaic conductive glass
Spray conductive glue；
Step S4, according to sequence from bottom to up, by glass cover-plate, packaging adhesive film, the battery strings and the photovoltaic
Electro-conductive glass is laid, and so that the electrode is connect opening with the electrode and formed conductive connection correspondingly；
Step S5 connects wiring between the output electrode of the photovoltaic conductive glass after EL test, lamination treatment
Box obtains the solar cell module.
Above-mentioned technical proposal of the invention one of at least has the advantages that:
Photovoltaic conductive glass according to an embodiment of the present invention can be with when carrying out the assembling of solar battery solar double-glass assemblies
Substitute traditional metal bus bars+encapsulation notacoria+photovoltaic glass.That is, will be electric assembling solar battery solar double-glass assemblies
Pond string typesetting cloth postpones, and directly photovoltaic conductive glass is placed in battery strings, is connected using the electrode on photovoltaic conductive glass
Opening, by photovoltaic conductive glass and the electrode of battery strings according to corresponding design connection conducting, battery strings tailpiece cell backside without
Any welding operation is needed, simultaneously because photovoltaic conductive glass is equipped with adhesive film, therefore also omits lid back side packaging adhesive film, respectively
Kind insulation strip and lid backboard etc. operation, greatly reduces fragment rate；And providing for the realization of whole-course automation can
Energy.
Detailed description of the invention
Fig. 1 is the explosive view of according to embodiments of the present invention 1 solar cell module；
Fig. 2 is the schematic diagram of the cell piece cutting front and back according to an embodiment of the present invention 1, wherein (a): is cutting preceding A just
Face, (b): the back side A before cutting, (c): the front a after cutting, (d): the back side a after cutting；
Fig. 3 is the cell piece series connection schematic diagram according to embodiments of the present invention 1；
Fig. 4 is the circuit diagram of the solar cell module according to embodiments of the present invention 1；
Fig. 5 is photovoltaic conductive glass schematic diagram corresponding with Fig. 4 circuit design；
Fig. 6 is the enlarged drawing of part shown in I in Fig. 5；
Fig. 7 be in Fig. 6 A-A to the schematic diagram of the section structure；
Fig. 8 is enlarged drawing shown in II in Fig. 5；
Fig. 9 be in Fig. 8 A-A to the schematic diagram of the section structure；
Figure 10 is the enlarged drawing of part shown in III in Fig. 5；
Figure 11 is the schematic diagram of the section structure of B-B direction in Figure 10；
Figure 12 is the circuit diagram of the solar cell module according to embodiments of the present invention 2；
Figure 13 is photovoltaic conductive glass schematic diagram corresponding with Figure 12 circuit design；
Figure 14 is the battery full sheet cutting front and back schematic diagram according to embodiments of the present invention 3, wherein (a): cutting preceding A ' just
Face, (b): the back side A ' before cutting, (c): the front a ' after cutting fragment, (d): the back side a ' after cutting fragment；
Figure 15 is the series connection schematic diagram of the battery strings according to embodiments of the present invention 3；
Figure 16 is the photovoltaic conductive glass schematic diagram according to embodiments of the present invention 3；
Figure 17 is the enlarged drawing of I' in Figure 16；
Figure 18 be Figure 17 A-A to the schematic diagram of the section structure；
Figure 19 is the schematic diagram of the section structure of the B-B direction in Figure 17.
Appended drawing reference:
101 glass cover-plates；201 packaging adhesive films；301 battery strings；401 photovoltaic conductive glass；
1 glass；2 first conductive structures；3 second conductive structures；100 third conductive structures；4 adhesive films；5 output electrodes；6
Doubling film layer；7 conductive layers；8 insulating layers；9 electrodes connection opening；9 ' connect according to the electrode of the photovoltaic conductive glass of embodiment 3
Opening；
The front main grid of cell piece a in 10 according to embodiments of the present invention 1；11 1 cell piece a's according to embodiments of the present invention
Back side main grid；12 electrodes draw connector；
The front main grid of cell piece a ' in 13 according to embodiments of the present invention 3；Cell piece a ' in 14 according to embodiments of the present invention 3
The back side lean on proximal edge back side main grid；Back of the back side of cell piece a ' close to middle position in 15 according to embodiments of the present invention 3
Face main grid.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
Attached drawing, the technical solution of the embodiment of the present invention is clearly and completely described.Obviously, described embodiment is this hair
Bright a part of the embodiment, instead of all the embodiments.Based on described the embodiment of the present invention, ordinary skill
Personnel's every other embodiment obtained, shall fall within the protection scope of the present invention.
Unless otherwise defined, technical term or scientific term used in the present invention are should be in fields of the present invention
The ordinary meaning that personage with general technical ability is understood." first ", " second " used in the present invention and similar word
It is not offered as any sequence, quantity or importance, and is used only to distinguish different component parts.Equally, "one" or
The similar word such as " one " does not indicate that quantity limits yet, but indicates that there are at least one." connection " or " connected " etc. are similar
Word is not limited to physics or mechanical connection, but may include electrical connection, it is either direct or between
It connects.
It should be noted that in this specification, for ease of description, collectively referred to as by " battery strings " and " battery strings group "
" battery strings ".
Solar cell module 100 according to an embodiment of the present invention is specifically described in conjunction with attached drawing first below.
As shown in Figure 1, solar cell module 100 according to an embodiment of the present invention, is successively wrapped from light-receiving surface to shady face
Include glass cover-plate 101, packaging adhesive film 201, battery strings 301 and photovoltaic conductive glass 401.
Wherein, photovoltaic conductive glass 401 is the glass with conducting function, can be according to the arrangement mode of battery strings 301
And the connection type with bypass diode, it is corresponding to design matched 401 circuit structure of photovoltaic conductive glass, so that electric
Pond string 301 is connected to the conductive structure on photovoltaic conductive glass 401, and accesses bypass diode.
Photovoltaic conductive glass 401 according to an embodiment of the present invention, as shown in Fig. 5 to Figure 11, comprising: glass 1, first is conductive
Structure 2, the second conductive structure 3 and adhesive film 4.
Wherein, glass 1 is equipped with through-hole (not shown).
First conductive structure 2 is arranged in inside (namely close to 301 side of the battery strings) both ends of glass 1 and along glass 1
It is laterally extended (left and right directions as shown in Figure 5).First conductive structure 2 is used for the electrode with 301 both ends of battery strings (for example, Fig. 2
Shown in back side main grid 11 in embodiment 1) connection conducting.
The inside of glass 1 and vertically extending (up and down direction as shown in Figure 5) along glass 1 is arranged in second conductive structure 3.
Wherein, one end of the second conductive structure 3 and the first conductive structure 2 are connected and the other end passes through the through-hole and extends to glass 1
The other side.
Adhesive film 4 is covered on 1 inside of glass and is led with clamping the first conductive structure 2 between adhesive film 4 and glass 1 with second
Electric structure 3.Electrode connection opening 9 is equipped on adhesive film 4 at position corresponding with the first conductive structure 1, so as to battery strings 301
The electrode at both ends passes through electrode connection opening 9 and connect conducting with the first conductive structure 2.Wherein, the main function of adhesive film 4 be for
Photovoltaic conductive glass 401 and aftermentioned battery strings group bonded.In addition, its secondary role is clamped together with glass 1
First conductive structure 2 and the second conductive structure 3.
As shown in Figure 5-Figure 7, the first conductive structure 2 includes the conductive layer 7 being set up directly on glass 1, that is to say, that
Conductive layer 7 is arranged between glass 1 and adhesive film 4.
Above-mentioned photovoltaic conductive glass 401 according to an embodiment of the present invention can be substituted by the way that the first conductive structure 2 is arranged
Traditional metal bus bars are directly realized by photovoltaic conductive glass 401 and are connected with the connection of battery strings 301, further, pass through setting
The electric energy from battery strings 301 collected via the first conductive structure 2 is directly output to outside glass 1 by the second conductive structure 3
Side is operated in 301 tailpiece cell backside of battery strings without any welding；Further, since photovoltaic conductive glass 401 is equipped with glue
Film layer 4, therefore the operation that also omits lid back side packaging adhesive film, various insulation strips and lid backboard etc., greatly reduce broken
Piece rate；And possibility is provided for the realization of whole-course automation.
According to some embodiments of the present invention, further, the first conductive structure 2 can also include insulating layer 8, the insulation
Layer 8 is arranged between conductive layer 7 and adhesive film 4.The insulating layer 8, which plays, blocks conducting between conductive layer 7 and adhesive film 4
The effect of possibility, so that first conductive structure 2 newly can be more stable, reliable.
Wherein, electrode connection opening 9 can arrange multiple for continuous integral type (as shown in figs. 16-17) or discontinuous
(as shown in Figure 5-Figure 7), and electrode connection opening 9 extends downwardly until conductive layer 7.
Form about electrode connection opening 9 does not limit specifically, according to the back side of battery strings 301 joined together electricity
Pole is accordingly arranged.For example, in embodiment 1, as shown in Fig. 2, the rear electrode that the battery in battery strings 301 is sliced is
The back side main grid 11 of discontinuous line segment shape, therefore correspondingly the electrode connection opening 9 in photovoltaic conductive glass 401 is again formed as
Discontinuous is arranged multiple to connect one to one respectively with back side main grid 11；When the back side main grid of cell piece is continuous linear
When, or even if electrode can be connected into opening 9 overleaf in the case where back side main grid of the main grid for discontinuous line segment shape and set
It is calculated as continuous integral type (as shown in figure 16).
According to some embodiments of the present invention, as illustrated in figs. 8-9, the second conductive structure 3 since 1 surface of glass towards
Adhesive film 4 is sequentially laminated with conductive layer 7 and insulating layer 8.Wherein, the conductive layer 7 and insulating layer 8 of the second conductive structure 3
It connects one to one respectively with the conductive layer 7 of the first conductive structure 2 and insulating layer 8.Second conductive structure 3 it is described another
(one end namely far from the first conductive structure 2) is held to be equipped with the output electrode 5 of the connection conducting of conductive layer 7, and output electrode 5 is worn
It crosses the through-hole and extends to the other side of glass 1.It is mutually led by output electrode 5 and the conductive layer of the first conductive structure 2 as a result,
Lead to and export the electric energy collected by the first conductive structure by the output electrode 5, this is simple and reliable for structure.
In addition, the setting method as the first conductive structure 2 and the second conductive structure 3, can first pass through plating on glass 1
After covering the methods of method, CVD method according to designed domain formation conductive layer 7, applies insulating layer coating 8 on it to realize, change sentence
For words, the doubling film layer 6 in the first conductive structure 2 and leading in the second conductive structure 3 can be completed by the same step
The setting of electric layer 7, insulating layer 8.
Further, output electrode 5 passes through metal electrode connection unit 51 and 7 phase of conductive layer in the second conductive structure 3
Even.
According to some embodiments of the present invention, third conductive structure 100, third are additionally provided between adhesive film 4 and glass 1
Conductive structure 100 is located at the middle inside of glass and is laterally extended along glass 1.Similarly, third conductive structure 100 is from glass 1
Surface is sequentially laminated with from the inside to the outside respectively to connect one to one with the conductive layer 7 of the first conductive structure 2 and insulating layer 8
Conductive layer 7 and insulating layer 8.Wherein, adhesive film 4 with third conductive structure 100 it is vertical on the corresponding position in both sides of the edge
The place of setting also is provided with two rows of electrode connection openings 9, and every row includes multiple electrodes arranged spaced apart of a monoblock type or discontinuous
Connection opening 9, electrode connection opening 9 extend downward into conductive layer 7.
That is, when solar battery solar double-glass assemblies include multiple battery strings 301, and multiple battery strings 301 are in multiple rows of
When arrangement, accordingly, multiple rows of third conductive structure 100 also can be accordingly set at middle part in the transverse direction of photovoltaic conductive glass 401,
To be corresponded with battery strings 301, so that the electrode at 301 both ends of battery strings connect opening 9 with electrode correspondingly
It is electrically connected.
Wherein, in order to enable adhesive film 4 keeps smooth on the whole, can on glass 1 with the first conductive structure 2, second
It is respectively equipped with groove at conductive structure 3 and the corresponding position of third conductive structure 100, the first conductive structure 2, second are led
Electric structure 3 and third conductive structure 100 are laid in the groove respectively.
The preparation method of solar cell module according to an embodiment of the present invention, it is main using above-mentioned photovoltaic conductive glass 401
Include the following steps:
Step S1 provides battery strings 301.The both ends of the battery strings 301 are respectively provided with electrode.
Step S2 provides above-mentioned photovoltaic conductive glass 401.
Step S3 is sprayed in either the electrode of battery strings 301 and/or the electrode connection opening 9 of photovoltaic conductive glass 401
Apply conductive glue；
Step S4, according to sequence from bottom to up, by glass cover-plate 101, packaging adhesive film 201, battery strings 301, Yi Jisuo
It states conductive backings to lay, and so that the electrode is connect opening 9 with electrode and form conductive connection correspondingly；
Step S5 connects wiring between the output electrode 5 of photovoltaic conductive glass 401 after EL test, lamination treatment
Box obtains the solar cell module.
Preparation method according to the present invention eliminates the lid back side by using photovoltaic conductive glass 401 according to the present invention
Packaging adhesive film, various insulation strips and lid backboard etc. operation, greatly reduce fragment rate；It and is whole-course automation
Realize that offer may.
In the following, by specific embodiment, further the present invention is described in detail.
Embodiment 1
Fig. 1 is the structural schematic diagram of the solar cell module in the embodiment of the present invention 1.
As shown in Figure 1, stacked tile type solar cell module provided in this embodiment, is wrapped according to sequence from bottom to up with this
Include glass cover-plate 101, packaging adhesive film 201, battery strings 301 and photovoltaic conductive glass 401.
Each battery strings 301 are formed by connecting by multiple cell piece a, and the front electrode connection of 301 first batteries of battery strings
Electrode draws connector, and the polarity of the front electrode of plurality of cell piece a is consistent, the rear electrode polarity of multiple cell piece a
Unanimously.
In the present embodiment, as shown in figure 4, being designed as three row's battery strings 301, every row's battery strings 301 up and down is connected with one
Bypass diode.
Correspondingly, shown in as shown in Figures 5 to 7, photovoltaic conductive glass 401 includes: glass 1 and adhesive film 4, in glass
The first conductive structure 2, the second conductive structure 3 and third conductive structure 100 are clamped between 1 and adhesive film 4.
First conductive structure 2 is arranged in the inside both ends of glass 1 and along glass laterally 1 extension.
Second conductive structure 3 is arranged in the inside of glass 1 and vertically extending along glass 1, one end of the second conductive structure 3 with
The conducting of first conductive structure 2 and the other end pass through the through-hole and extend to the other side of glass 1.
Third conductive structure 100 is located at the middle inside of glass and is laterally extended along glass 1.
Adhesive film 4 is covered on 1 inside of glass and is led with clamping the first conductive structure 2 between adhesive film 4 and glass 1 with second
Electric structure 3 is equipped with electrode connection opening 9 on adhesive film 4, so as to battery strings 301 at position corresponding with the first conductive structure 2
The electrode at both ends passes through electrode connection opening 9 and connect conducting with the first conductive structure.
Wherein, as shown in Fig. 5-Fig. 9, the first conductive structure 2 and the second conductive structure 3 include conductive layer 7, insulating layer 8,
Wherein, conductive layer 7 is deposited on glass 1 by CVD method, and conductive layer 7 is connected by insulating layer 8 and adhesive film 4.In adhesive film 4
Equipped with through insulating layer 8 until the electrode connection opening 9 of conductive layer 7 with the electrode of battery strings 301 to connect.
As shown in figure 9, the second conductive structure 3 is provided with output electrode 5, which is connected single by metal electrode
Member 51 is electrically connected with conductive layer 7, which is used to connect electrode outlet line and two poles of solar battery solar double-glass assemblies
Pipe.
Similarly, as shown in Figure 10 and Figure 11, third conductive structure 100 is sequentially laminated with from the inside to the outside from 1 surface of glass
The conductive layer 7 and insulating layer 8 to connect one to one respectively with the conductive layer 7 of the first conductive structure 2 and insulating layer 8.Wherein,
Adhesive film 4 with third conductive structure 100 it is vertical on both sides of the edge opposite position at also be provided with two rows of electrodes and connect out
Mouthfuls 9, every row includes multiple electrodes connection openings 9 arranged spaced apart of a monoblock type or discontinuous, electrode connection opening 9 to
Under extend to conductive layer 7.
It designs in this way, it may not be necessary to the convergent belt arranged in battery strings 301 with battery strings electrode welding, in assembly end
Production efficiency can be improved, reduce the fragment rate in module production process, while can guarantee raising group on the basis of assembly property
The unit area generating efficiency of part.
As shown in Fig. 2, cell piece a is cut by full wafer battery A, the structure of multiple cell piece a after cutting is identical.
The electrode of the front electrode connection of first cell piece a of each battery strings draws connector 12, then and later
Multiple cell piece a mutually be connected in series to form battery strings.It is conductive material flexible that electrode herein, which draws connector 12, and electrode draws
The upper surface of connector 12 can be arranged to corresponding color according to demand out, such as increase reflectivity white, or with electricity
The color that pond piece is consistent ultimately forms beautiful component.The realization of upper surface color can be by adhesive layer by coloured material
The bed of material is attached on flexible conducting material layer and is realized (that is, by flexible conducting material layer, adhesive layer and coloured
Material layer (outermost layer) draws connector 12 to constitute electrode)；Chromonic layer directly can also be coated on compliant conductive material
It realizes and (connects on material that is, being made up of electrode flexible conducting material layer and chromonic layer (outermost layer) and drawing
Fitting 12).
It is that the front electrode of its cell piece a is covered on the rear electrode of adjacent cell piece a that multiple battery strings 301, which are mutually connected in series,
On, conductive media object is equipped between the front electrode mutually covered and rear electrode.
For the present embodiment by taking p-type crystal silicon battery as an example, the front electrode of cell piece a is cathode, and rear electrode is discontinuous
Anode.The current difference of the cell piece a of same size is within 2%.
As shown in Fig. 2, the front and back of the full wafer battery A before cell piece a cutting is respectively equipped with main grid, by full wafer battery
A is cut at main grid reserved location, and depth of cut reaches the 40%-60% of the thickness of battery A, then uses printing machine
Conductive glue is imprinted on the back side battery Ade primary gate electrode to go out, divides the cell into multiple cell piece a, main grid point using slicing apparatus
Cloth is and orthogonal with the short side of cell piece a in the long side of cell piece a.
As shown in figure 3, when the cell piece a after cutting is interconnected, the cathode of first cell piece a of each battery strings
(i.e. front electrode) connection electrode draws connector 12, and cell piece a is interconnected by the way of lamination, wherein a piece of cell piece
The front main grid 10 of a overlaps on the back side main grid 11 of adjacent a piece of cell piece a, and front main grid 10 and back side main grid 11 are in contact
Conductive media object is equipped at position.
As shown in figure 4, multiple battery strings 301 are carried out according to design after cell piece a is connected in series to certain amount (1~24)
Arrangement is placed, and modes of emplacement can be designed according to cell condition.
It is equipped with conductive media object (such as conducting resinl) at the electrode connection opening 9 of 401 inside of photovoltaic conductive glass, is then put
In corresponding design, arrangement placement battery strings 301, electrode connection opening 9 connect conducting with the electrode of battery strings 301, from
And photovoltaic conductive glass 401 and battery strings 301 form conductive communication.
Specifically, the preparation method of above-mentioned solar cell module, comprising the following steps:
The present embodiment makes component using photovoltaic conductive glass 401, and the mode series welding of lamination is used after full wafer battery A cutting
Bunchiness does not need to connect between multiple battery strings 301, places according to design and layout, photovoltaic conductive glass 401 is placed on battery
On string 301, conducting is connected between the first conductive structure 2 for including of photovoltaic conductive glass 401 and battery strings 301, composition is led mutually
Logical circuit connects terminal box finally by the output electrode 5 of the second conductive structure 3, component is made.
Detailed process is as follows:
Full wafer battery A is chosen, A is carried out not exclusively at primary gate electrode reserved location at the back side of A using laser
Cutting, depth of cut reach the 40%~60% of the thickness of A, conductive glue are then imprinted on to printing machine the back of full wafer battery A
At face main grid 11, full wafer battery A is divided into the cell piece a of multiple 1/5 sizes using slicing apparatus.In Fig. 2 (a), (b), (c),
It (d) is the schematic diagram of cell piece cutting front and back, wherein (a) figure is the front of cell piece before cutting, (b) figure is cell piece before cutting
The back side, be (c) front of cell piece after fragment, be (d) back side of cell piece after fragment.
The production of battery strings 301: choosing electrode and draw connector 12, and electrode is drawn 12 side of connector and coats conducting resinl
Water chooses a piece of cell piece a, checks the appearance of a, and the front main grid 10 of a and electrode are drawn connector 12 and are coated with conductive glue
Side it is overlapped, formed be conductively connected, hereafter choose second cell piece a again and equally check appearance, make its front main grid
10 is overlapped with the back side primary gate electrode 11 of first cell piece a, and 3~24 cell piece a later connect according to same method
It connects, battery strings 301 is fabricated to after being heating and curing, entire series welding process can be completed in the machine of automatic series welding.
Multiple battery strings 301 are subjected to arrangement placement according to certain circuit structure mode, then on photovoltaic conductive glass
401 adhesive film 4 electrode connection opening 9 coating conductive glues (it is without being limited thereto, can also in battery strings 301 head and the tail electricity
Pole coats conductive glue), hereafter electrodes conduct connection opening 9 is connected with the electrode in battery strings 301 according to corresponding design, shape
It is connected at connection.
Fig. 6 is the circuit diagram of solar cell module, and Fig. 7 is the photovoltaic conductive glass 401 of corresponding design.
Then, according to the sequence from light-receiving surface to shady face, by glass cover-plate 101, packaging adhesive film (EVA or POE)
201, battery strings 301, photovoltaic conductive glass 401 are laid.
Be laid with after completing is included EL test, lamination postprocessing working procedures processing.
Hereafter, the wiring of diode is had according to circuit diagram installation between the output electrode 5 of photovoltaic conductive glass 401
Box can be made into imbrication solar cell module.
Embodiment 2
The structure of solar cell module provided in this embodiment, similar to Example 1, difference is only in that,
As shown in figure 12, the solar cell module in the present embodiment, battery strings 301 therein are in single setting, institute in battery strings 301
Quantity containing cell piece can be 36 (considerably beyond 24), and correspondingly, as shown in figure 13, photovoltaic conductive glass 401 only has
There are the first conductive structure 2 and the second conductive structure 3, no setting is required third conductive structure 100.The battery contained by battery strings 301
Piece quantity is considerably beyond in the case where 24, if fragment rate will be significantly greatly increased using conventional technique, and by using this hair
Bright photovoltaic conductive glass 401, not only simplifies packaging technology, and advantageously reduce fragment rate.
Embodiment 3
The structure of solar cell module provided in this embodiment, it is similar to Example 1, the difference is that, this reality
It applies example and has used the cell piece with the design of different primary gate electrodes, meanwhile, 401 electrode connection is opened on photovoltaic conductive glass
Mouth 9 ' is continuous integral type.
In the present embodiment, using two kinds of cell pieces, cell piece a in the first cell piece such as embodiment 1 and embodiment 2,
Second of cell piece is cell piece a '.
Illustrate second of cell piece and preparation method thereof first below.
As shown in figure 14, second of cell piece a ' of different primary gate electrode designs employed in the present embodiment, front
Equipped with a front main grid 13, the back side is set (is proximate to the long side edge of cell piece a ' there are two discontinuous back side main grid respectively
The first back side main grid 14 and be located at short side direction second back side main grid 15 at middle part), by second of cell piece close to back
The reserved location of face main grid 14 carries out cutting and forms multiple second of cell piece a '.
Secondly, 401 on photovoltaic conductive glass in the present embodiment, as shown in Figure 16-Figure 19, wherein the first conductive structure 2
Electrode connecting interface 9 ' with 100 corresponding position of third conductive structure is continuous integral type.Specifically, the first conductive structure
2 are separately positioned in the groove for being formed in glass 1 with third conductive structure 100, the first conductive structure 2 and third conductive structure
100 respectively include conductive layer 7, due between conductive layer 7 and outermost adhesive film 4 and being not directly contacted with, can be omitted
Insulating layer 8.Therefore, according to the photovoltaic conductive glass 401 of the present embodiment prepare simpler and production cost it is lower, preparation
Process is shorter.Second conductive structure 3 therein is identical as embodiment 1, and the description thereof will be omitted herein.
The solar cell module of the present embodiment, specific preparation process are as follows:
It chooses full wafer the first battery A and is cut, process is same as Example 1, and the description thereof will be omitted herein.
Then, choose second of battery A ' of full wafer, using laser at the back side of B at 14 reserved location of back side main grid
A ' is not exclusively cut, depth of cut reaches the 40%~60% of the thickness of B, is then imprinted on conductive glue with printing machine
At the back side main grid 14 of A ', A ' is divided into the cell piece a ', Figure 14 of multiple 1/5 sizes (a) using slicing apparatus, (b), (c),
It (d) is the schematic diagram of cell piece cutting front and back, wherein (a) figure is the front of cell piece A ' before cutting, (b) figure is battery before cutting
The back side of piece A ' is (c) front of cell piece a ' after fragment, is (d) back side of cell piece a ' after fragment.
The production of battery strings: it as shown in figure 15, chooses electrode and draws connector 12, electrode is drawn into 12 1 side spray of connector
Conductive glue is applied, a piece of cell piece a is chosen, checks the appearance of a, front main grid electricity 10 and the electrode of a are drawn into connector 12 and applied
There is the side of conductive glue overlapped, is formed and be conductively connected.Second cell piece a is chosen again and equally checks appearance, makes it just
Face main grid 10 and the back side main grid 11 of first cell piece a are overlapped, connect according to the connection method of second battery certain
Hereafter the first cell piece a of quantity chooses a piece of second of cell piece a ' and equally checks appearance, make its front main grid 13 and
The back side main grid 11 of the first cell piece a closed on is overlapped, is formed and is conductively connected, and connects then according to same method certain
Then the first cell piece a of quantity chooses second second of cell piece a ', the first for making its front main grid 13 and closing on
The back side main grid 11 of cell piece a is overlapped, a certain number of the first cell piece a is finally reconnected, after being heating and curing
Battery strings 301 are fabricated to, entire series welding process can be completed in the machine of automatic series welding.
Next, multiple battery strings 301 are carried out arrangement placement according to certain circuit structure mode, then in photovoltaic conductive
On glass 401 adhesive film 4 electrode connection opening 9 coating conductive glues (it is without being limited thereto, can also be in battery strings 301
Head and the tail electrode coats conductive glue), hereafter electrodes conduct connection opening 9 is designed with the electrode in battery strings 301 according to corresponding
Connection forms connection conducting.
Then, according to the sequence from light-receiving surface to shady face, by glass cover-plate 101, packaging adhesive film (EVA or POE)
201, battery strings 301, photovoltaic conductive glass 401 are laid.
Be laid with after completing is included EL test, lamination postprocessing working procedures processing.
Hereafter, the wiring of diode is had according to circuit diagram installation between the output electrode 5 of photovoltaic conductive glass 401
Box can be made into imbrication solar cell module.
In addition to the above described embodiments, there can also be a series of deformation, for example, cell piece can be all using second
Cell piece a ', lamination bunchiness is such, omits it herein and enumerates.
The other structures of vehicle according to an embodiment of the present invention and operation are all to those skilled in the art can be with
Understand and easy to accomplish, therefore is not described in detail.
The above is a preferred embodiment of the present invention, it is noted that for those skilled in the art
For, without departing from the principles of the present invention, it can also make several improvements and retouch, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of photovoltaic conductive glass characterized by comprising
Glass, the glass are equipped with through-hole；
First conductive structure, first conductive structure are arranged in the inside both ends of the glass and laterally prolong along the glass
It stretches, first conductive structure is used to connect conducting with the electrode at battery strings both ends；
The inside of the glass and, institute vertically extending along the glass is arranged in second conductive structure, second conductive structure
The one end for stating the second conductive structure is connected with first conductive structure and the other end passes through the through-hole and extends to glass
The other side；And
Adhesive film, the adhesive film are covered on the glass inner side to clamp described between the adhesive film and the glass
One conductive structure and second conductive structure are equipped on the adhesive film at position corresponding with first conductive structure
Electrode connection opening connects so that the electrode at the battery strings both ends passes through electrode connection opening with first conductive structure
Conducting is connect,
First conductive structure includes the conductive layer being set up directly on the glass.
2. photovoltaic conductive backboard according to claim 1, which is characterized in that first conductive structure further includes insulation
Layer, the insulating layer are arranged between the conductive layer and the adhesive film.
3. photovoltaic conductive glass according to claim 1, which is characterized in that electrode connection opening be monoblock type or
Disconnected formula arrangement it is multiple, and Open Side Down extends up to the conductive layer for electrode connection.
4. photovoltaic conductive glass according to claim 2, which is characterized in that second conductive structure is from the glass table
Face starts to be sequentially laminated with conductive layer and insulating layer towards the adhesive film, the conductive layer of second conductive structure,
And insulating layer connects one to one with the conductive layer of first conductive structure and insulating layer respectively, described second is conductive
The other end of structure is equipped with the output electrode that conducting is connect with the conductive layer, and the output electrode passes through the through-hole
And extend to the other side of glass.
5. photovoltaic conductive glass according to claim 4, which is characterized in that the output electrode is connected by metal electrode
Unit is connected with the conductive layer.
6. photovoltaic conductive glass according to claim 1, which is characterized in that the conductive layer is formed by the method for plating
On the glass.
7. photovoltaic conductive glass according to claim 3, which is characterized in that between the adhesive film and the glass also
Equipped with third conductive structure, the third conductive structure is located at the middle inside of the glass and is laterally extended along the glass,
The third conductive structure is sequentially laminated with the conduction with first conductive structure respectively from the glass surface from the inside to the outside
Layer and the insulating layer conductive layer and insulating layer that connect one to one, wherein the adhesive film with the third conduction knot
Structure it is vertical on both sides of the edge opposite position at also be provided with two rows of electrodes connection openings, every row includes a monoblock type
Or multiple electrodes arranged spaced apart of discontinuous connect opening, Open Side Down extends to the conduction for the electrode connection
Layer.
8. photovoltaic conductive glass according to claim 7, which is characterized in that tied on the glass with first conduction
Groove, first conductive structure, are respectively equipped at structure, the second conductive structure and the corresponding position of third conductive structure
Two conductive structures and third conductive structure are laid in the groove respectively.
9. a kind of solar battery solar double-glass assemblies, which is characterized in that from bottom to up successively include glass cover-plate, packaging adhesive film, electricity
Pond string and the described in any item photovoltaic conductive glass of claim 1 to 8, wherein the electrode at the both ends of the battery strings and institute
State the first conductive structure connection conducting in photovoltaic conductive glass.
10. a kind of preparation method of solar battery solar double-glass assemblies, which comprises the steps of:
Step S1, provides battery strings, and the battery strings both ends are respectively provided with electrode；
Step S2 provides photovoltaic conductive glass as claimed in any one of claims 1 to 8；
Step S3 is sprayed in either the electrode of the battery strings and/or the electrode connection opening of the photovoltaic conductive glass
Conductive glue；
Step S4, according to sequence from bottom to up, by glass cover-plate, packaging adhesive film, the battery strings and the photovoltaic conductive
Glass is laid, and so that the electrode is connect opening with the electrode and formed conductive connection correspondingly；
Step S5 connects terminal box between the output electrode of the photovoltaic conductive glass after EL test, lamination treatment,
Obtain the solar cell module.
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