CN110047945A - A kind of photovoltaic module structure - Google Patents
A kind of photovoltaic module structure Download PDFInfo
- Publication number
- CN110047945A CN110047945A CN201910412699.5A CN201910412699A CN110047945A CN 110047945 A CN110047945 A CN 110047945A CN 201910412699 A CN201910412699 A CN 201910412699A CN 110047945 A CN110047945 A CN 110047945A
- Authority
- CN
- China
- Prior art keywords
- connecting pin
- cell piece
- photovoltaic module
- vertical component
- connection end
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000005611 electricity Effects 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 3
- 238000003466 welding Methods 0.000 abstract description 32
- 238000000034 method Methods 0.000 abstract description 14
- 230000008569 process Effects 0.000 abstract description 10
- 238000003475 lamination Methods 0.000 abstract description 9
- 238000010008 shearing Methods 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 4
- 238000013467 fragmentation Methods 0.000 description 4
- 238000006062 fragmentation reaction Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000006872 improvement Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 239000005431 greenhouse gas Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/02—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
- H01L31/02013—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 output lead wires elements
-
- 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
-
- 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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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Photovoltaic Devices (AREA)
Abstract
The invention discloses a kind of photovoltaic module structures, including the lead-out wire being connect with cell piece, the vertical component and the parallel section parallel with cell piece that lead-out wire includes and cell piece connects, vertical component includes the first connecting pin connecting with cell piece and the second connection end connecting with parallel section, the upper surface of first connecting pin and the upper surface of second connection end are parallel, and the first connecting pin is greater than second connection end at a distance from vertical component at a distance from vertical component.By the way that the first connecting pin of the vertical component perpendicular to cell piece of the lead-out wire of component to be greater than to parallel second connection end at a distance from vertical component at a distance from vertical component, welding has been reduced or avoided and has drawn the space drop formed after wire bonding, it reduce or eliminates welding and draws the shearing force generated after wire bonding, welding, lead-out wire and cell piece have enough activity spaces in subsequent lamination applanation process, and 4-1 cell piece piece problem has been reduced or avoided.
Description
Technical field
The present invention relates to photovoltaic module production technical fields, more particularly to a kind of photovoltaic module structure.
Background technique
Photovoltaic power generation is as one of generation of electricity by new energy, without independently occupying large stretch of soil as existing power station
Ground, small pollution of the environment and not emission greenhouse gas can realize power generation in desert, in city, in the water surface, generate electricity
It does not also discharge pollutants in journey, declines cost of electricity-generating constantly, to obtain wider
Using.
Due to the continuous competition of each manufacturer, so that the difficulty that the cost of photovoltaic module reduces is increasing, but each
Small progress can all promote the competitiveness of product.
Currently, in photovoltaic module production process upon connection because of lead-out wire and battery strings welding, making lead-out wire and battery
Piece forms certain shearing force.The cell piece of 4-1 is easy to appear fragmentation phenomenon in photovoltaic module lamination process, seriously affects
The yields of product.(finished Components have six string cell piece strings, and 4-1 cell piece refers to that cell piece is gone here and there in component the 4th, first
Cell piece.)
As shown in Figure 1, since cell piece is to be connected on one one by one by welding during producing photovoltaic module
It rising, battery strings are divided into positive and negative anodes, and welding is positive in cell piece when positive, otherwise at the cell piece back side.Welding is from cell piece
Cathode is drawn, and battery is held up 0.345mm by welding and thicknesses of layers 0.345mm.Busbar thickness 0.4mm, the welding welding of stretching
On busbar, because busbar is thicker than welding, after welding, welding extension can lead to welding and electricity by padded 0.06mm
Pool side edge forms upward power F1.Battery thickness 0.18-0.2mm, battery and welding film strips overall thickness 0.525-0.545mm.And draw
Outlet only has 0.4mm, and after having welded, lead-out wire and battery edge form the downward power F2 of angle.The welding of battery strings and extraction
Line produces shearing force to cell piece after being welded.Between lead-out wire and battery, be further added by isolation EPE and EVA after, battery and
By by bigger active force between lead-out wire, when component carries out lamination pressing, shearing force is easy to cause different journeys to cell piece
The breakage (fragmentation) of degree.
Therefore, how to improve the cell piece fragmentation phenomenon of 4-1 in photovoltaic module lamination process is currently urgently to be solved ask
Topic
Summary of the invention
The object of the present invention is to provide a kind of photovoltaic module structure, the cell piece fragmentation of 4-1 in lamination process is reduced
Rate reduces component cost.
In order to solve the above technical problems, the embodiment of the invention provides a kind of photovoltaic module structures, including connect with cell piece
The lead-out wire connect, the lead-out wire include and the vertical component of cell piece connection and parallel with the cell piece parallel
Part, the vertical component include the first connecting pin connecting with the cell piece and connect with the parallel section second
The upper surface of connecting pin, first connecting pin is parallel with the upper surface of the second connection end, first connecting pin and institute
The distance for stating vertical component is greater than the second connection end at a distance from the vertical component.
Wherein, the difference of the upper level of the upper surface and second connection end of first connecting pin is 0.7mm
~1.0mm.
Wherein, it is connected between first connecting pin and the second connection end by least one rake, it is described to incline
It is connected between inclined portion and first connecting pin, the second connection end by folding face or curved surface.
Wherein, first connecting pin, the second connection end, the rake form Z-type structure.
Wherein, the angle between first connecting pin, described second and the rake is 120 °~150 °.
Wherein, first connecting pin, described second equal with the angle between the rake.
Wherein, further include the insulating space being arranged between the cell piece and the parallel section and with the Z-type knot
It is configured the matched isolating bar of shape.
Wherein, the isolating bar is EPE isolating bar, EVA isolating bar or EPE and EVA mixing isolating bar.
Photovoltaic module structure provided by the embodiment of the present invention has the advantage that compared with prior art
Photovoltaic module structure provided in an embodiment of the present invention, by by the lead-out wire of component perpendicular to the vertical of cell piece
The first partial connecting pin is greater than parallel second connection end at a distance from vertical component at a distance from vertical component, reduces or keeps away
Exempt from welding and drawn the space drop formed after wire bonding, reduce or eliminate welding and draws the shearing generated after wire bonding
Power, welding, lead-out wire and cell piece have enough activity spaces in subsequent lamination applanation process, and 4- has been reduced or avoided
1 cell piece piece problem.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is the present invention
Some embodiments for those of ordinary skill in the art without creative efforts, can also basis
These attached drawings obtain other attached drawings.
Fig. 1 is the structural schematic diagram of photovoltaic module structure in the prior art；
Fig. 2 is a kind of structural schematic diagram of specific embodiment of photovoltaic module structure provided in an embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Referring to FIG. 2, Fig. 2 is a kind of structure of specific embodiment of photovoltaic module structure provided in an embodiment of the present invention
Schematic diagram.
In a specific embodiment, the photovoltaic module structure, including the lead-out wire 20 being connect with cell piece 10, institute
Stating lead-out wire 20 includes and the vertical component 21 of the cell piece 10 connection and the parallel section parallel with the cell piece 10
22, the vertical component 21 includes the first connecting pin 211 connecting with the cell piece 10 and connects with the parallel section 22
The second connection end 212 connect, the upper surface of first connecting pin 211 is parallel with the upper surface of the second connection end 212, institute
It states the first connecting pin 211 and is greater than the second connection end 212 and the vertical component 21 at a distance from the vertical component 21
Distance.
By by the first connecting pin 211 of the vertical component 21 perpendicular to cell piece 10 of the lead-out wire 20 of component with it is vertical
The distance of part 21 is greater than parallel second connection end 212 at a distance from vertical component 21, and welding has been reduced or avoided and has drawn
The space drop that line 20 is formed after welding reduce or eliminates the shearing force generated after welding and the welding of lead-out wire 20, subsequent
Lamination applanation process in welding, lead-out wire 20 and cell piece 10 have enough activity spaces, 4-1 battery has been reduced or avoided
10 problems of piece.
The present invention without limitation, needs to combine difference to the difference in height between the first connecting pin 211 and second connection end 212
Lead-out wire 20, welding and the cell piece 10 of model thickness produce as long as can reduce or eliminate after welding is welded with lead-out wire 20
Raw shearing force will decrease or even eliminate 4-1 fragment rate in subsequent lamination process in this way, improve the qualification of product
The difference of rate, the upper level of the upper surface and second connection end 212 of general first connecting pin 211 is 0.7mm
~1.0mm.
It is an object of the invention to reduce or eliminate after the welding of battery strings and lead-out wire 20 are welded to cell piece 10
Shearing force is produced, the difference in height formed in lead connection procedure is eliminated, for the first connecting pin 211, second connection end 212
Between difference in height generation type without limitation, can use foldable structure, such as in the first connecting pin 211 and second connection end
Waveform configuration is set between 212, the former exit is in wave crest, and the latter is in trough, self-assembling formation difference in height, ability
Field technique personnel can be according to different needs, be arranged multiple waveform knots between the first connecting pin 211, second connection end 212
Structure, and the shape of the wave of waveform configuration, amplitude etc. can need to carry out different designs according to different, or use ladder
Shape and other structures.
In the present invention in order to be further reduced issuable stress in the welding process, reduces lead-out wire 20 and processing
It is likely to occur damage caused by digging is substantially bent in the process or even fractures, to reduce under the pin configuration intensity that may cause
Therefore drop is connected between general first connecting pin 211 and the second connection end 212 by least one rake 213
It connects, is connected between the rake 213 and first connecting pin 211, the second connection end 212 by folding face or curved surface.
It should be pointed out that rake 213 here refers to the part of the first connecting pin 211 of connection, second connection end 212
In, for being generally in the vertical structure upper surface of horizontal lead-out wire 20,10 surface of cell piece, in skewed
State has certain angle.
In the present invention, rake 213 can phase with the transition portion shape of the first connecting pin 211, second connection end 212
Together, it can also be different, and for the angle of rake 213, the angle of multiple rakes 213 be may be the same or different,
The length of even each rake 213 can also be different.
Since the length of lead-out wire 20 is inherently shorter, in order to reduce difficulty of processing, and for reducing subsequent
The setting of filler between lead-out wire 20 and cell piece 10 can generally select to use a rake 213, it is preferred that
First connecting pin 211, the second connection end 212, the rake 213 form Z-type structure.
The present invention for the angle between the first connecting pin 211, second connection end 212 and rake 213 without limitation, one
As first connecting pin 211, described second and the rake 213 between angle be 120 °~150 °.
Preferably, first connecting pin 211, described second equal with the angle between the rake 213.
It due to there is certain gap between cell piece 10 and the parallel section 22 of lead-out wire 20 in the present invention, that is, include needing
The welding of cell piece 10 is connected, also includes the vertical component 21 of connection cell piece 10 and parallel section 22, if last
The section is not filled by any substance in product, it is easy to the relative motion between parallel section 22 and cell piece 10, either
It is filled with air and is easy to aoxidize cell piece 10, or since the presence of air makes cell piece 10 and 20 parallel portion of lead-out wire
Between points 22 due to excessive temperature differentials and deformation occurs causes to damage, the general photovoltaic module structure further includes that setting exists
Insulating space between the cell piece 10 and the parallel section 22 and with the matched isolating bar of Z-type planform.
Without limitation for the material of isolating bar, shape, processing method in the present invention, the general isolating bar is EPE
Isolating bar, EVA isolating bar or EPE and EVA mixing isolating bar.
In conclusion photovoltaic module structure provided in an embodiment of the present invention, by by the lead-out wire of component perpendicular to electricity
The vertical component of pond piece is designed as bending structure so that the spacing between the first upper surface and cell piece be greater than the second upper surface with
The spacing of cell piece has been reduced or avoided welding and has drawn the space drop that is formed after wire bonding, reduce or eliminate welding with
The shearing force generated after wire bonding is drawn, welding, lead-out wire and cell piece have enough in subsequent lamination applanation process
4-1 cell piece piece problem has been reduced or avoided in activity space.
Photovoltaic module structure provided by the present invention is described in detail above.Specific case pair used herein
The principle of the present invention and embodiment are expounded, method of the invention that the above embodiments are only used to help understand
And its core concept.It should be pointed out that for those skilled in the art, before not departing from the principle of the invention
It puts, can be with several improvements and modifications are made to the present invention, these improvement and modification also fall into the guarantor of the claims in the present invention
It protects in range.
Claims (8)
1. a kind of photovoltaic module structure, which is characterized in that including the lead-out wire connecting with cell piece, the lead-out wire includes and institute
State cell piece connection vertical component and the parallel section parallel with the cell piece, the vertical component include and the electricity
First connecting pin of pond piece connection and the second connection end being connect with the parallel section, the upper surface of first connecting pin
Parallel with the upper surface of the second connection end, first connecting pin is greater than described second at a distance from the vertical component and connects
End is connect at a distance from the vertical component.
2. photovoltaic module structure as described in claim 1, which is characterized in that the upper surface of first connecting pin and described second
The difference of the upper level of connecting pin is 0.7mm~1.0mm.
3. photovoltaic module structure as claimed in claim 2, which is characterized in that first connecting pin and the second connection end it
Between connected by least one rake, pass through folding between the rake and first connecting pin, the second connection end
Face or curved surface connection.
4. photovoltaic module structure as claimed in claim 3, which is characterized in that first connecting pin, the second connection end, institute
It states rake and forms Z-type structure.
5. photovoltaic module structure as claimed in claim 4, which is characterized in that first connecting pin, described second incline with described
Angle between inclined portion is 120 °~150 °.
6. photovoltaic module structure as claimed in claim 5, which is characterized in that first connecting pin, described second incline with described
Angle between inclined portion is equal.
7. photovoltaic module structure as claimed in claim 6, which is characterized in that further include setting the cell piece with it is described parallel
Insulating space between part and with the matched isolating bar of Z-type planform.
8. photovoltaic module structure as claimed in claim 7, which is characterized in that the isolating bar is EPE isolating bar, EVA isolating bar
Or EPE and EVA mixing isolating bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910412699.5A CN110047945B (en) | 2019-05-17 | 2019-05-17 | Photovoltaic module structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910412699.5A CN110047945B (en) | 2019-05-17 | 2019-05-17 | Photovoltaic module structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110047945A true CN110047945A (en) | 2019-07-23 |
| CN110047945B CN110047945B (en) | 2021-08-31 |
Family
ID=67282464
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910412699.5A Active CN110047945B (en) | 2019-05-17 | 2019-05-17 | Photovoltaic module structure |
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| Country | Link |
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| CN (1) | CN110047945B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202816926U (en) * | 2012-08-31 | 2013-03-20 | 杰群电子科技（东莞）有限公司 | Semiconductor lead frame preventing reverse packaging |
| CN106807804A (en) * | 2016-12-05 | 2017-06-09 | 新奥光伏能源有限公司 | A kind of welding backfin device and welding backfin method, photovoltaic module preparation method |
| CN108963023A (en) * | 2017-05-27 | 2018-12-07 | 常州亚玛顿股份有限公司 | A kind of double glass photovoltaic modulies and preparation method thereof |
| CN109390417A (en) * | 2017-08-03 | 2019-02-26 | 成都晔凡科技有限公司 | Stacked wafer moudle connection structure and stacked wafer moudle |
-
2019
- 2019-05-17 CN CN201910412699.5A patent/CN110047945B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202816926U (en) * | 2012-08-31 | 2013-03-20 | 杰群电子科技（东莞）有限公司 | Semiconductor lead frame preventing reverse packaging |
| CN106807804A (en) * | 2016-12-05 | 2017-06-09 | 新奥光伏能源有限公司 | A kind of welding backfin device and welding backfin method, photovoltaic module preparation method |
| CN108963023A (en) * | 2017-05-27 | 2018-12-07 | 常州亚玛顿股份有限公司 | A kind of double glass photovoltaic modulies and preparation method thereof |
| CN109390417A (en) * | 2017-08-03 | 2019-02-26 | 成都晔凡科技有限公司 | Stacked wafer moudle connection structure and stacked wafer moudle |
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| Publication number | Publication date |
|---|---|
| CN110047945B (en) | 2021-08-31 |
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Address after: No. 1, Yingbin Avenue, Shangrao Economic and Technological Development Zone, Jiangxi Province 334100 Patentee after: Jinko Solar Co., Ltd. Patentee after: ZHEJIANG JINKO SOLAR Co.,Ltd. Address before: 334100, No. 1, crystal Road, Shangrao Economic Development Zone, Jiangxi, China Patentee before: JINKO SOLAR Co.,Ltd. Patentee before: ZHEJIANG JINKO SOLAR Co.,Ltd. |