CN110416320A - A kind of no main grid photovoltaic module - Google Patents
A kind of no main grid photovoltaic module Download PDFInfo
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- CN110416320A CN110416320A CN201910693387.6A CN201910693387A CN110416320A CN 110416320 A CN110416320 A CN 110416320A CN 201910693387 A CN201910693387 A CN 201910693387A CN 110416320 A CN110416320 A CN 110416320A
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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
- H01L31/02—Details
- H01L31/02002—Arrangements for conducting electric current to or from the device in operations
- H01L31/02005—Arrangements for conducting electric current to or from the device in operations for device characterised by at least one potential jump barrier or surface barrier
- H01L31/02008—Arrangements for conducting electric current to or from the device in operations for device characterised by at least one potential jump barrier or surface barrier for solar cells or solar cell modules
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/02—Details
- H01L31/02002—Arrangements for conducting electric current to or from the device in operations
- H01L31/02005—Arrangements for conducting electric current to or from the device in operations for device characterised by at least one potential jump barrier or surface barrier
- H01L31/02008—Arrangements for conducting electric current to or from the device in operations for device characterised by at least one potential jump barrier or surface barrier for solar cells or solar cell modules
- H01L31/0201—Arrangements for conducting electric current to or from the device in operations for device characterised by at least one potential jump barrier or surface barrier for solar cells or solar cell modules comprising specially adapted module bus-bar structures
-
- 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
- H01L31/02—Details
- H01L31/0224—Electrodes
- H01L31/022408—Electrodes for devices characterised by at least one potential jump barrier or surface barrier
- H01L31/022425—Electrodes for devices characterised by at least one potential jump barrier or surface barrier for solar cells
- H01L31/022433—Particular geometry of the grid contacts
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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
- H01L31/02—Details
- H01L31/0224—Electrodes
- H01L31/022408—Electrodes for devices characterised by at least one potential jump barrier or surface barrier
- H01L31/022425—Electrodes for devices characterised by at least one potential jump barrier or surface barrier for solar cells
- H01L31/022441—Electrode arrangements specially adapted for back-contact solar cells
-
- 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
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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
- H01L31/05—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
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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
- H01L31/05—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
- H01L31/0516—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 specially adapted for interconnection of back-contact solar cells
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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
- 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
Abstract
The present invention relates to a kind of no main grid photovoltaic modulies, including front plate, just/back conductor wire carrier, the just/back side conductor wire being laid on just/back side conductor wire carrier, photovoltaic cell, convergent belt, in photovoltaic cell between adjacent photovoltaic cell piece positive and negative anodes towards on the contrary, just/back side conductor wire carrier covers just/rear electrodes of whole photovoltaic cells；Photovoltaic cell is carried out series connection, and/or is electrically connected head and the tail photovoltaic cell with convergent belt by just/back side conductor wire.Structure of the invention is not necessarily to make individual line film composite electrode unit in the preparation, without the individual photovoltaic cell string of production, simplify the manufacture craft of no main grid component, reduce process and equipment investment, productive power is saved, material is saved, reduces cost, improve production efficiency, it is maximumlly utilized without the advantages of precisely aligning when no main grid component string connects, and the high density component technology such as patch can be compatible with.
Description
Technical field
The present invention relates to semiconductor and photovoltaic products manufacturing fields, are related to a kind of photovoltaic module, more particularly to one kind
Without main grid photovoltaic module.
Background technique
In recent years, have benefited from being continually striving to for major photovoltaic enterprise and research institution, to high-efficiency photovoltaic battery and component skill
The lasting research and development of art, photovoltaic efficiency is higher and higher, and cost is lower and lower, and photovoltaic competitiveness also increasingly improves.
No main grid component technology is one of important efficient component technology.Relative to traditional main grid technology, i.e.,
Welding and photovoltaic cell main grid are welded together the electric current for generating cell piece to draw or interconnect with other cell pieces, dereliction
Grid component replaces conventional solar cell piece main grid using thinner more dense composite metal wire, can not only reduce shading damage
It loses, improve electric conductivity, moreover it is possible to reduce photovoltaic cell silver paste usage amount, need especially for certain using expensive low temperature
For the photovoltaic cell (such as hetero-junction solar cell) of silver paste, no main grid component technology can greatly reduce cost.In addition to this, nothing
Welding-main grid alignment is needed, the advantages that reducing and lose as caused by cell piece crack, improve product stability.
The scheme that dereliction grid cell piece uses at present is first to manufacture multiple line film composite electrode units, each line film compound electric
Pole unit connects adjacent cell piece between photovoltaic cell string two-by-two, and needs to photovoltaic cell string cell piece line film compound electric end to end
Pole unit is individually handled, and photovoltaic cell string then is made by modes such as hot pressing, using lamination, lamination and etc. formation
Photovoltaic module.Although eliminating series welding step, need to carry out film line is compound and two steps of hot pressing bunchiness alternatively, and
Cell piece line membrane electrode recombiner unit needs to handle by special facture end to end, increases process complexity, also results in potential
Volume production bottleneck.
Summary of the invention
The object of the present invention is to provide a kind of no main grid photovoltaic modulies.
In order to achieve the above objectives, the technical solution adopted by the present invention is that:
A kind of no main grid photovoltaic module, comprising:
Photovoltaic cell: including at least one photovoltaic cell string, each photovoltaic cell string includes multiple light arranged side by side
Cell piece is lied prostrate, front, the back side of the photovoltaic cell are respectively formed electrode, have between the two neighboring photovoltaic cell
Have gap and positive and negative anodes towards on the contrary,
Convergent belt,
Front side conductive component: it is led including front side conductive line carrier, the fixed front being laid on the front side conductive line carrier
Electric wire, the front side conductive line carrier cover the front electrode of photovoltaic cell described in whole；The front side conductive line
The front electrode of photovoltaic cell described in will be two neighboring in the same photovoltaic cell string carries out series connection, and/or will be same
The front electrode of photovoltaic cell described in head and the tail is electrically connected with the convergent belt in photovoltaic cell string described in one,
Back side conductive component: including back side conductor wire carrier, the back side conductor wire being laid on the back side conductor wire carrier/
Conductive layer, the back side conductor wire carrier cover the rear electrode of photovoltaic cell described in whole；The back side is conductive
Line/conductive layer will in the same photovoltaic cell string rear electrode of the two neighboring photovoltaic cell connected,
And/or the rear electrode of photovoltaic cell described in head and the tail in the same photovoltaic cell string and the convergent belt are carried out
Electrical connection；
Front plate and backplate: front plate at least described is glass in the front plate, backplate, and the front plate is covered
The lid front side conductive component；The backplate covering back side conductive component.
It is further preferred that at least one electrode surface of the photovoltaic cell is provided with transparent conductive film (TCO),
The material of the transparent conductive film is that one of ITO, IWO, ITiO, ICeO, AZO or a variety of are compound.
It is further preferred that the material of at least one electrode surface of the photovoltaic cell be Ag, Cu, Ti, Sn,
Ni, Al, Au, or be one or more in described Ag, Cu, Ti, Sn, Ni, Al, Au and ITO, IWO, ITiO, ICeO, AZO
It is compound.
Preferably, the photovoltaic cell is double-side cell, i.e., the photovoltaic cell positive and negative anodes are grid line electricity
Pole can be used as light-receiving surface.
It is further preferred that the photovoltaic cell is hetero-junction solar cell.
It is further preferred that the photovoltaic cell at least its front electrode has similar electric property, power
And current difference is less than 10%.
It is further preferred that the photovoltaic cell at least its front electrode appearance is identical.
Preferably, the front electrode of the front side conductive line, back side conductor wire and the photovoltaic cell, back side electricity
The part that pole is in contact protrudes from the front side conductive line carrier, back side conductor wire carrier.
Preferably, the front side conductive line carrier, back side conductor wire carrier will be described by way of being bonded, wrapping up
Front side conductive line, back side conductor wire are fixed.
Preferably, the low-melting-point metal or alloy that the front side conductive line, back side conductor wire are coated by its surface apply
Layer, graphite powder, graphite line, conducting resinl and the photovoltaic cell electrode surface be electrically connected and physical connection.
Preferably, it is provided between the front side conductive line and/or between the back side conductor wire for preventing
The fixator of the front side conductive line, back side conduction displacement of the lines stated, the fixator and the front side conductive line, the back side are conductive
Line is perpendicular.
It is further preferred that the fixator is the silk thread using optical clear material.
Preferably, front side conductive line, back side conductor wire radical are 8-40 root.
Preferably, the front side conductive line carrier is the fixed film in front；The back side conductor wire carrier is solid for the back side
Determine film.
It is further preferred that the fixed film in the front and the front side conductive line form frontal line film composite electrode；
The fixed film in the back side and the back side conductor wire form back side line film composite electrode.
It is further preferred that the no main grid photovoltaic module further includes front glue film, back side glue film, the front glue
Film links into an integrated entity with the fixed film in the front；The back side glue film links into an integrated entity with the fixed film in the back side, In
Play the role of the fixed front side conductive line, the back side conductor wire while encapsulation effect is provided.
It is further preferred that the fixed film in described front, the fixed film in the back side with a thickness of 20-100um.
It is further preferred that the front side conductive line carrier, back side conductor wire carrier are provided with multilayer, towards described
One layer of material of photovoltaic cell side is low-flow material, and the low-flow material refers to such as PO, EVA, PVB, PE,
The materials such as PP or PMMA.
Preferably, the back side conductor wire carrier is adhesive layer, and the backplate, adhesive layer and conductive layer are formed
Composite conducting backboard plays photovoltaic cell rear electrode between tandem photovoltaic cells string while providing encapsulation adhesion effect
Effect.
When preparation the application is without main grid photovoltaic module, front side conductive component, back side conductive component are first prepared；By photovoltaic
Cell piece positive and negative anodes are towards opposite mode is arranged in setting regions combination front side conductive line, conductor wire formation in the back side is gone here and there two-by-two
Connection is integrally formed after lamination laying through lamination.
Since above-mentioned technical proposal is used, the present invention has following advantages and effect compared with prior art:
Structure of the invention is not necessarily to make individual line film composite electrode unit in the preparation, without the individual photovoltaic electric of production
Pond string, simplifies the manufacture craft of no main grid component, reduces process and equipment investment, saves productive power, saves material
Expect, reduce cost, improve production efficiency, is maximumlly utilized without the advantages of precisely aligning when no main grid component string connects, and
The high density component technologies such as the compatible patch of energy.
Detailed description of the invention
Attached drawing 1 is the structural schematic diagram of the present embodiment one；
Attached drawing 2 is the cross-sectional view of the structure of the present embodiment one；
Attached drawing 3 is the structural schematic diagram of the present embodiment two；
Attached drawing 4 is the cross-sectional view of the structure of the present embodiment two；
Attached drawing 5 is the structural schematic diagram of the present embodiment three；
Attached drawing 6 is the cross-sectional view of the structure of the present embodiment three；
Attached drawing 7 is the structural schematic diagram of photovoltaic cell in the present embodiment.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
Personnel's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
Embodiment one:
A kind of no main grid photovoltaic module as shown in Figure 1, 2, including front plate 120, front glue film 130, frontal line film compound electric
Pole 140, photovoltaic cell, convergent belt 150, back side line film composite electrode 160, back side glue film 170 and backplate 180.In this implementation
In example:
Photovoltaic cell includes at least one photovoltaic cell string 110, and each photovoltaic cell string 110 includes multiple photovoltaics arranged side by side
Cell piece 111, front, the back side of photovoltaic cell are respectively formed electrode, and two neighboring 111 positive and negative anodes of photovoltaic cell are towards phase
Instead, that is to say, that: the front electrode of a photovoltaic cell 111 is anode, and two photovoltaic cells 111 adjacent thereto are just
Face electrode is cathode, and sectional design makes two neighboring photovoltaic cell 111 in photovoltaic cell string 110 connect but keep away two-by-two
Exempt to be shorted with other photovoltaic cells 111, as shown in Figure 7.Photovoltaic cell 111 be double-side cell, and anode upwards and cathode
Upward photovoltaic cell 111 by different designs using opposite positive back knot so that two kinds of cell pieces upward possess it is similar
Electric property, it is preferred that power and current difference are smaller than 10%, and upward grid line quantity and graphic designs are identical.
Frontal line film composite electrode 140 includes the fixed film 141 in front, the fixed front being laid on the fixed film 141 in front
Conductor wire 142.Wherein: the fixed film 141 in front covers the front electrode of whole photovoltaic cells 111, the thickness of the fixed film 141 in front
Degree is 20 ~ 100um；Front side conductive line 142 is arranged along the orientation for being parallel to photovoltaic cell string 110, and radical is 8-40 root, uses
It connects in by the front electrode of photovoltaic cell 111 two neighboring in same photovoltaic cell string 110, in the present embodiment,
As shown, according to designing the front electrode and confluence of head and the tail photovoltaic cell 111 in first and third, five photovoltaic cell strings 110
Band 150 is electrically connected.The fixed film 141 in front is fixed on the position of setting by the modes such as being bonded, wrapping up for front side conductive line 142
It sets, and the one side part that front side conductive line 142 is contacted with photovoltaic cell 111 protrudes from the fixed film 141 in front.Front is fixed
Film 141 can also after laminating with provide adhesive effect on the conductive surface of photovoltaic cell 111.Specifically: front side conductive
Line is coated with low-melting-point metal coating or alloy coat on 142 surface, in lamination process later, low-melting-point metal or alloy
After overcoat fusing and 111 grid line of photovoltaic cell forms reliable electrical contact.
Likewise, the structure of back side line film composite electrode 160 is similar to frontal line film composite electrode 140, and use the back side
Conductor wire 162 connects the rear electrode of photovoltaic cell 111 two neighboring in same photovoltaic cell string 110, in this reality
It applies in example, as shown, according to design that the back side of head and the tail photovoltaic cell 111 in second, four, six photovoltaic cell strings 110 is electric
Pole is electrically connected with convergent belt 150.
Front plate 120 and backplate 180 are glass, and front plate 120 covers frontal line film composite electrode 140；Backplate
180 covering back side line film composite electrodes 160.
By backplate 180, successively lamination is laid for back side glue film 170 and back side line film composite electrode 160, by each photovoltaic electric
All photovoltaic cells 111 put the overleaf setting of line film composite electrode 160 with the staggered arrangement mode of positive and negative anodes in pond string 110
Position on, using convergent belt 150 multiple photovoltaic cell strings 110 are carried out series-parallel and electric current are exported into photovoltaic module, usually
Be connected with the terminal box being arranged in outside component, then by frontal line film composite electrode 140, front glue film 130, face glass 120 according to
Secondary laying, final layer compacting are made no main grid photovoltaic module.
Embodiment two:
A kind of no main grid photovoltaic module as shown in Figure 3,4, including front plate 220, front fixed film 231, front side conductive line
232, photovoltaic cell, convergent belt 250, the fixed film 271 in the back side, back side conductor wire 272 and backplate 280.In the present embodiment: just
Film 231 is fixed in face, the fixed film 271 in the back side is glue film.
Photovoltaic cell 211 is hetero-junction solar cell piece, and front electrode is transparent conductive layer, and rear electrode is in ITO
The silver grating line of silk-screen printing on transparency conducting layer.
The fixed film 231 in front uses multilayered structure, wherein towards one layer of photovoltaic cell side be low-flow material, such as
PO, EVA, the materials such as PVB, PE, PP or PMMA are front side conductive while providing surface bonding with photovoltaic cell 211
Line 232 provides a supporting role, and prevents front side conductive line 232 from offset phenomena occur in the techniques such as lamination.Front side conductive line 232 is multiple
It closes on the fixed film 231 in front, and the part for contacting front side conductive line 232 with photovoltaic cell 211 protrudes from positive fixation
Film 231.Front side conductive line 232 is to intersect latticed, the front electrode of photovoltaic cell 211 and latticed front side conductive anyhow
Line 232 is connected.
Back side conductor wire 272 is compound overleaf to be fixed on film 271, and connects back side conductor wire 272 with photovoltaic cell 211
The part of touching protrudes from the fixed film 271 in the back side.Back side conductor wire 272 is arranged along the orientation for being parallel to photovoltaic cell string 210.
The fixator perpendicular to back side conductor wire 272 is additionally provided between back side conductor wire 272, in the present embodiment, fixator is PET material
Transparent silk thread, be connected by the way of bonding with back side conductor wire 272, the back side can be avoided to lead in the techniques such as laminating technology
There is offset phenomena in electric wire 272.The silver grating line of 211 rear electrode of photovoltaic cell is connected with 272 square crossing of back side conductor wire,
It is each to form metal grill.
Front plate 120 is glass, and front plate 120 covers the fixed film 231 in front；Backplate 180 covers the fixed film in the back side
271。
By backplate 280, it is compounded with the fixed film 271 in the back side successively lamination laying of back side conductor wire 272, by each photovoltaic
All photovoltaic cells 211 are placed on the position of setting in battery strings 210 with the staggered arrangement mode of positive and negative anodes, use confluence
Multiple photovoltaic cell strings 210 are carried out series-parallel and electric current are exported photovoltaic module by band 250, then will be compounded with front side conductive line
The fixed film 231 in 232 front, front plate 220 are successively laid, and final layer compacting is made no main grid photovoltaic module.
Embodiment three:
A kind of no main grid photovoltaic module as shown in Figure 5,6, including front plate 320, front glue film 330, frontal line film compound electric
Pole 340, photovoltaic cell, convergent belt 150 and composite conducting backboard 380.
The present embodiment is basically the same as the first embodiment, the difference is that, in the present embodiment, use composite conducting backboard
380 replace back side line film composite electrode, back side glue film and backplate.Composite conducting backboard 380 includes the backplate set gradually
383, adhesive layer 381 and conductive layer 382, composite conducting backboard 380 play series connection light while providing encapsulation adhesion effect
Lie prostrate the effect of 310 311 rear electrodes of photovoltaic cell of battery strings.
Photovoltaic cells 311 all in each photovoltaic cell string 310 are put with the staggered arrangement mode of positive and negative anodes compound
On position set by conductive backings 380, multiple photovoltaic cell strings 310 are carried out using convergent belt 350 series-parallel and by electric current
Photovoltaic module is exported, then by frontal line film composite electrode 340, front glue film 330, front plate 320 is successively laid, final layer compacting
It is made no main grid photovoltaic module.
The above embodiments merely illustrate the technical concept and features of the present invention, and its object is to allow person skilled in the art
Scholar cans understand the content of the present invention and implement it accordingly, and it is not intended to limit the scope of the present invention.It is all according to the present invention
Equivalent change or modification made by Spirit Essence, should be covered by the protection scope of the present invention.
Claims (10)
1. a kind of no main grid photovoltaic module, it is characterised in that: include:
Photovoltaic cell: including at least one photovoltaic cell string, each photovoltaic cell string includes multiple light arranged side by side
Cell piece is lied prostrate, front, the back side of the photovoltaic cell are respectively formed electrode, the two neighboring photovoltaic cell positive and negative anodes
Towards on the contrary,
Convergent belt,
Front side conductive component: it is led including front side conductive line carrier, the fixed front being laid on the front side conductive line carrier
Electric wire, the front side conductive line carrier cover the front electrode of photovoltaic cell described in whole；The front side conductive line
It the front electrode of the two neighboring photovoltaic cell will connect in the same photovoltaic cell string, and/or by institute
The front electrode of photovoltaic cell described in head and the tail in photovoltaic cell string is stated to be electrically connected with the convergent belt,
Back side conductive component: including back side conductor wire carrier, the back side conductor wire being laid on the back side conductor wire carrier/
Conductive layer, the back side conductor wire carrier cover the rear electrode of photovoltaic cell described in whole；The back side is conductive
Line/conductive layer connects the rear electrode of the photovoltaic cell two neighboring in the same photovoltaic cell string,
And/or the rear electrode of photovoltaic cell described in head and the tail in the photovoltaic cell string and the convergent belt are electrically connected
It connects；
Front plate and backplate: front plate at least described is glass in the front plate, backplate, and the front plate is covered
The lid front side conductive component；The backplate covering back side conductive component.
2. a kind of no main grid photovoltaic module according to claim 1, it is characterised in that: the photovoltaic cell is at least
One electrode surface is provided with transparent conductive film (TCO), the material of the transparent conductive film is ITO, IWO, ITiO, ICeO,
One of AZO or a variety of is compound.
3. a kind of no main grid photovoltaic module according to claim 1, it is characterised in that: the photovoltaic cell is at least
The material of one electrode surface is Ag, Cu, Ti, Sn, Ni, Al, Au, or for described Ag, Cu, Ti, Sn, Ni, Al, Au with
It is one or more compound in ITO, IWO, ITiO, ICeO, AZO.
4. a kind of no main grid photovoltaic module according to claim 1, it is characterised in that: the photovoltaic cell is two-sided
Battery.
5. a kind of no main grid photovoltaic module according to claim 1, it is characterised in that: the front side conductive line, the back side
The low-melting-point metal or alloy coat, graphite powder, graphite line, conducting resinl and the photovoltaic electric that conductor wire is coated by its surface
The electrode surface of pond piece is electrically connected and physical connection, and front side conductive line, back side conductor wire and the photovoltaic
The part that the front electrode of cell piece, rear electrode are in contact protrudes from the front side conductive line carrier, back side conductor wire carries
Body.
6. a kind of no main grid photovoltaic module according to claim 1, it is characterised in that: between the front side conductive line
And/or the fixation for preventing the front side conductive line, back side conduction displacement of the lines is provided between the back side conductor wire
Device, the fixator and the front side conductive line, back side conductor wire are perpendicular.
7. a kind of no main grid photovoltaic module according to claim 1, it is characterised in that: the front side conductive line carrier is
The fixed film in front；The back side conductor wire carrier is the fixed film in the back side.
8. a kind of no main grid photovoltaic module according to claim 7, it is characterised in that: the described fixed film in front with it is described
Front side conductive line form frontal line film composite electrode, the fixed film in the back side and the back side conductor wire form back side line
Film composite electrode.
9. a kind of no main grid photovoltaic module according to claim 8, it is characterised in that: the no main grid photovoltaic module is also
Including front glue film, back side glue film, the front glue film links into an integrated entity with the fixed film in the front；The back side glue
Film links into an integrated entity with the fixed film in the back side.
10. a kind of no main grid photovoltaic module according to claim 1, it is characterised in that: the back side conductor wire carrier
For adhesive layer, the backplate, adhesive layer and conductive layer form composite conducting backboard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910693387.6A CN110416320A (en) | 2019-07-30 | 2019-07-30 | A kind of no main grid photovoltaic module |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910693387.6A CN110416320A (en) | 2019-07-30 | 2019-07-30 | A kind of no main grid photovoltaic module |
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| CN110416320A true CN110416320A (en) | 2019-11-05 |
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| CN201910693387.6A Pending CN110416320A (en) | 2019-07-30 | 2019-07-30 | A kind of no main grid photovoltaic module |
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| CN111509069A (en) * | 2020-04-23 | 2020-08-07 | 苏州太阳井新能源有限公司 | Photovoltaic module |
| CN113097326A (en) * | 2021-03-26 | 2021-07-09 | 福斯特(嘉兴)新材料有限公司 | Two-sided interconnection film and photovoltaic module |
| CN113725317A (en) * | 2021-07-22 | 2021-11-30 | 湖北美格新能源科技有限公司 | Preparation method of solar module |
| CN114649436A (en) * | 2022-05-20 | 2022-06-21 | 英利能源发展有限公司 | Novel photovoltaic module and preparation method thereof |
| CN114864746A (en) * | 2022-05-12 | 2022-08-05 | 常州时创能源股份有限公司 | Photovoltaic module preparation method |
| CN114975646A (en) * | 2022-05-31 | 2022-08-30 | 杭州福斯特应用材料股份有限公司 | Conductive adhesive film, manufacturing method thereof and back contact solar cell |
| CN115241310A (en) * | 2022-07-21 | 2022-10-25 | 常州时创能源股份有限公司 | Method for reinforcing electrical connection of battery pieces in photovoltaic module |
| WO2023011209A1 (en) * | 2021-08-05 | 2023-02-09 | 嘉兴阿特斯技术研究院有限公司 | Preparation method for photovoltaic assembly and photovoltaic assembly |
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