CN108417657A - A kind of photovoltaic welding belt and photovoltaic module - Google Patents
A kind of photovoltaic welding belt and photovoltaic module Download PDFInfo
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- CN108417657A CN108417657A CN201810263562.3A CN201810263562A CN108417657A CN 108417657 A CN108417657 A CN 108417657A CN 201810263562 A CN201810263562 A CN 201810263562A CN 108417657 A CN108417657 A CN 108417657A
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- 238000003466 welding Methods 0.000 title claims abstract description 81
- 238000005286 illumination Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 2
- 241001424688 Enceliopsis Species 0.000 description 9
- 238000010586 diagram Methods 0.000 description 4
- 239000011521 glass Substances 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000011514 reflex Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000013082 photovoltaic technology Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
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
- H01L31/05—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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- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- 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)
- Photovoltaic Devices (AREA)
Abstract
Include the welding ontology with trapezoidal cross-section the invention discloses a kind of photovoltaic welding belt；Wherein, multiple the first strip grooves being mutually parallel and multiple the second strip grooves being mutually parallel are provided on the upper plane of welding ontology and lower plane, the first strip groove and the second strip groove are arranged in a crossed manner.Photovoltaic welding belt provided by the present invention can largely improve the illumination utilization rate of photovoltaic module, improve the output power of photovoltaic module, and can enhance stable connection degree between cell piece and welding.The present invention also provides a kind of photovoltaic modulies, have above-mentioned advantageous effect.
Description
Technical field
The present invention relates to technical field of solar, more particularly to a kind of photovoltaic welding belt and photovoltaic module.
Background technology
It is on the rise with the increasingly depleted and environmental pollution of fossil energy, regenerative resource is made to receive more and more
Concern.Especially China supports photovoltaic industry to develop energetically in recent years, causes photovoltaic technology that eruptive growth, political affairs are presented in China
Mansion also successively releases leader and super leader base promotes the policies such as photovoltaic industry chain technology upgrading, especially in photovoltaic group
Part end is even more to propose to clearly require to component transfer efficiency.Therefore, photovoltaic module electricity conversion how is improved, in turn
The output power for improving photovoltaic module, is the emphasis that solar photovoltaic industry is studied.
Invention content
The object of the present invention is to provide a kind of photovoltaic welding belt and photovoltaic modulies, and it is low to solve photovoltaic module photoelectric conversion rate
Problem improves the output power of photovoltaic module.
In order to solve the above technical problems, the present invention provides a kind of photovoltaic welding belt, including：
Welding ontology with trapezoidal cross-section；Wherein, it is provided on the upper plane of the welding ontology and lower plane more
A the first strip groove being mutually parallel and multiple the second strip grooves being mutually parallel, first strip groove and described
Two strip grooves are arranged in a crossed manner.
Wherein, it is provided with reflective layer on the side plane of the welding ontology.
Wherein, first strip groove and second strip groove are the groove for the V-shape cross section having, and
First strip groove and second strip groove are more than 0 ° with the angle of the welding body edges line and are less than 90 °.
Wherein, the spacing between each adjacent first strip groove is all higher than the width of the first strip groove, respectively
Spacing between a adjacent second strip groove is all higher than the width of the second strip groove.
Wherein, the base angle of the trapezoidal cross-section of the welding ontology is 42 ° -60 °.
Wherein, the trapezoidal cross-section of the welding ontology is non-isosceles trapezoid cross section.
Wherein, the lower plane width of the welding ontology is 0.6-1.2mm, and the thickness of the welding ontology is 2.0-2.8mm.
The present invention also provides a kind of photovoltaic modulies, including any one of them photovoltaic welding belt as above and photovoltaic cell；
Wherein, the photovoltaic cell is connected with each other by the photovoltaic welding belt.
Photovoltaic welding belt provided by the present invention, the welding ontology with trapezoidal cross section are connected using the welding ontology
When the cell piece of photovoltaic module, plane and lower plane are fitted in the surface of different cell pieces respectively on welding ontology, and welding sheet
The cross section of body is trapezoidal, has side plane, and when solar irradiation is mapped on welding ontology, the reflection based on light can incite somebody to action
Sunlight finally reflexes to the surface of cell piece, to improve the intensity of illumination of cell piece reception；In addition, in the upper of welding ontology
It is additionally provided with groove structure on plane and lower plane, the light for the sunray being irradiated on the lower planes of welding ontology can be made
Road generates change, rather than is directly reflected back in the air, finally so that the light of this part reflexes on the cell piece of photovoltaic module,
Further increase utilization rate of the photovoltaic module to sunray；And since welding ontology has, upper plane is unilateral under,
Being fitted and connected for face and face can be carried out between cell piece, improve the firm journey connected between welding ontology and cell piece
Degree.
In conclusion photovoltaic welding belt provided by the present invention, can largely improve the illumination profit of photovoltaic module
With rate, the output power of photovoltaic module is improved, and stable connection degree between cell piece and welding can be enhanced.
The present invention also provides a kind of photovoltaic modulies, have above-mentioned advantageous effect.
Description of the drawings
It, below will be to embodiment or existing for the clearer technical solution for illustrating the embodiment of the present invention or the prior art
Attached drawing is briefly described needed in technology description, it should be apparent that, the accompanying drawings in the following description is only this hair
Some bright embodiments for those of ordinary skill in the art without creative efforts, can be with root
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is the structural schematic diagram of welding ontology provided in an embodiment of the present invention；
Fig. 2 is the schematic diagram of the reflected beams of welding ontology provided in an embodiment of the present invention.
Specific implementation mode
In order to enable those skilled in the art to better understand the solution of the present invention, with reference to the accompanying drawings and detailed description
The present invention is described in further detail.Obviously, described embodiments are only a part of the embodiments of the present invention, rather than
Whole embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise
Lower obtained every other embodiment, shall fall within the protection scope of the present invention.
As shown in FIG. 1, FIG. 1 is the structural schematic diagram of welding ontology provided in an embodiment of the present invention, which can be with
Including：
Welding ontology 10 with trapezoidal cross-section, wherein the trapezoidal side of the cross section by welding ontology four planes
It is formed, upper plane is trapezoidal upper bottom, lower plane is trapezoidal bottom, two side planes are trapezoidal two bevel edges.
Specifically, Fig. 2 is can refer to, Fig. 2 is the schematic diagram of the reflected beams of welding ontology provided in an embodiment of the present invention, figure
Sun light beam is incident to after the side plane structure of welding ontology again through transparency glass plate through reflection in 2, finally exposes to battery
On piece.
Certainly it after so that sun light beam is radiated on side plane, is just directly reflexed on cell piece by primary event,
This is to have certain requirement to the angle of inclination of incident angle and side plane.Optionally, the base angle of trapezoidal cross-section can be with
At 42 ° -60 °, and the angle in 20 direction of sun light beam and vertical glass plate is smaller, and sun light beam is just directly reflected through primary event
Possibility to cell piece is bigger；General verticality of the sun light beam at noon between time and glass plate 20 is also higher,
And solar irradiation is also strongest at this time, and then can largely enhance utilization rate of the photovoltaic module to solar irradiation.
It is trapezoidal welding ontology, the increased output work of welding ontology relative to cross section for rectangle for cross section
Rate gain can refer to shown in table 1：
Table 1
| Base angle (°) | 45 | 45 | 45 | 45 | 45 | 45 | 45 | 45 |
| It goes to the bottom (mm) | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 |
| Highly (mm) | 0.20 | 0.21 | 0.22 | 0.23 | 0.24 | 0.25 | 0.26 | 0.27 |
| Cross section (mm) | 0.160 | 0.166 | 0.172 | 0.177 | 0.182 | 0.188 | 0.192 | 0.197 |
| Electrical losses (w) | 0.763 | 0.674 | 0.594 | 0.521 | 0.455 | 0.396 | 0.341 | 0.291 |
| Optical gain (w) | 5.326 | 5.593 | 5.859 | 6.125 | 6.392 | 6.658 | 6.924 | 7.190 |
| Component power gain (w) | 1.900 | 2.122 | 2.336 | 2.541 | 2.740 | 2.933 | 3.121 | 3.304 |
As shown in table 1, it is the welding ontology for the cross section for being 45 ° with trapezoidal base angle in table 1, lower plane width is 1.0mm
For illustrate.As shown in Table 1, with the increase of trapezoidal height, the thickness of welding ontology, the optical gain of component be that is to say
It is gradually increased with the output power of component, at the same time the electrical losses of component are but being gradually reduced, therefore, using with trapezoidal
The photovoltaic welding belt of cross section can largely improve the output power of photovoltaic welding belt.
As shown in Table 1, when the lower plane width of welding ontology and constant cross section base angle, with the thickness of welding ontology
Increase, the gain of output power of photovoltaic module is consequently increased.Further, the width of welding ontology lower plane can in the present invention
Think 0.6mm-1.2mm, can be 0.6mm, 0.8mm, 1.0mm, 1.2mm specifically, the excessive influence of width is avoided, to battery
Piece surface leads to the problem of large area and blocks, and the thickness of welding ontology can be 2.0mm-2.8mm, can be specifically 2.0mm,
2.2mm、2.4mm、2.6mm、2.8mm。
In view of in installation photovoltaic component, general photovoltaic module is after installation is complete, two side planes of photovoltaic welding belt
Angular range with sunlight incidence is exactly relatively-stationary, according to the difference of installation site and installation direction, photovoltaic welding belt
The variation range of two side planes and the angle of sunray incidence may and differ, therefore two side planes of photovoltaic welding belt
Different values can be designed according to actual conditions with the angle of lower plane, that is to say that the trapezoidal cross-section of welding ontology can be with right and wrong
The cross section of isosceles trapezoid.Certainly, the cross section that welding ontology is also not precluded in the present invention is the technical solution of isosceles trapezoid.
It, can also be further two in order to further reduce illumination loss when sun light beam exposes on side plane
Reflective layer is set on a side plane.
In addition, being additionally provided with strip groove in the upper plane and lower plane of photovoltaic welding belt 10, wherein the strip groove packet
Multiple first strip grooves 11 and multiple second strip grooves 12 are included, are mutually parallel between each first strip groove 11, it is multiple
It is also to be mutually parallel between second strip groove 12, but between the first strip groove 11 and the second strip groove 12 is mutual
Arranged in a crossed manner.
Specifically, Fig. 2 is can refer to, after strip groove on the lower planes that sun light beam exposes to welding ontology, then
When reflexing to the lower surface of glass plate, incidence angle significantly increases, and if being not provided with strip groove in planar structure,
The incidence angle that sun light beam reflects every time will not change, and therefore, the strip groove in the present invention enables to sunray
The surface of cell piece can be exposed to by the reflection of less number, and then reduces the energy loss of sunray, improved
Utilization rate of the photovoltaic module to sunray.
Based on above-described embodiment, in another specific embodiment of the present invention, can include further：
First strip groove 11 and the second strip groove 12 are the groove for the V-shape cross section having, and the first bar shaped
Groove 11 and the second strip groove 12 are more than 0 ° with the angle of 10 edge line of welding ontology and are less than 90 °.
It should be noted that cross section can also be used for trapezoidal or other shapes grooves in the present invention, but with regard to work
For skill is realized, V-shape cross section is that process is the simplest.Therefore one kind of the invention when the groove of V-shape cross section
Preferred embodiment.
Further, the spacing between each the first adjacent strip groove 11 is all higher than the width of the first strip groove 11
It spends, the spacing between each the second adjacent strip groove 12 is all higher than the width of the second strip groove 12.
It should be noted that if the first adjacent strip groove 11 has common edge and adjacent Article 2
Connected in star 12 has common edge, then the surface of the welding ontology finally obtained takes on the point of crest one by one
End, the surface on surface and cell piece with such tip is fitted, welding sheet equally can be largely reduced
Contact area between body 10 and cell piece.
And in the present embodiment, two adjacent first strip grooves 11 and the intersection of two adjacent second strip grooves 12
Afterwards, it will be able to the plane of a quadrangle is surrounded, and multiple first strip grooves 11 and multiple second strip grooves 12 are handed over each other
It is wrong, you can acquisition surrounds several small planes.It is connected with cell piece with the welding ontology 10 with such plane, it can
Enough ensure that tension is closed in the face between welding ontology and cell piece with face paste, and utilization of the photovoltaic module to sunray can be improved
Rate.
A kind of embodiment of photovoltaic module is additionally provided in the present invention, which there is above-mentioned any embodiment to be carried
The photovoltaic welding belt of confession, and will be attached between each cell piece by the photovoltaic welding belt.
Because photovoltaic welding belt makes sunray finally be incident to the surface of cell piece the reflex of sunray, increase
Add utilization rate of the cell piece to solar irradiation, improves the output power of photovoltaic module.
Each embodiment is described by the way of progressive in this specification, the highlights of each of the examples are with it is other
The difference of embodiment, just to refer each other for same or similar part between each embodiment.For being filled disclosed in embodiment
For setting, since it is corresponded to the methods disclosed in the examples, so description is fairly simple, related place is referring to method part
Explanation.
Photovoltaic welding belt provided by the present invention and photovoltaic module are described in detail above.Tool used herein
Principle and implementation of the present invention are described for body example, and the explanation of above example is only intended to help to understand this hair
Bright method and its core concept.It should be pointed out that for those skilled in the art, not departing from the present invention
, can be with several improvements and modifications are made to the present invention under the premise of principle, these improvement and modification also fall into right of the present invention
It is required that protection domain in.
Claims (8)
1. a kind of photovoltaic welding belt, which is characterized in that include the welding ontology with trapezoidal cross-section；
Wherein, multiple the first strip grooves being mutually parallel and multiple are provided on the upper plane of the welding ontology and lower plane
The second strip groove being mutually parallel, first strip groove and second strip groove are arranged in a crossed manner.
2. photovoltaic welding belt according to claim 1, which is characterized in that be provided on the side plane of the welding ontology reflective
Layer.
3. photovoltaic welding belt according to claim 2, which is characterized in that first strip groove and second bar shaped are recessed
Slot is the groove for the V-shape cross section having, and first strip groove and second strip groove with the weldering
The angle of band body edge line is more than 0 ° and is less than 90 °.
4. photovoltaic welding belt according to claim 3, which is characterized in that between each adjacent first strip groove
Spacing is all higher than the width of first strip groove, and the spacing between each adjacent second strip groove is all higher than institute
State the width of the second strip groove.
5. photovoltaic welding belt according to any one of claims 1 to 4, which is characterized in that the trapezoidal cross-section of the welding ontology
The base angle in face is 42 ° -60 °.
6. photovoltaic welding belt according to claim 5, which is characterized in that the trapezoidal cross-section of the welding ontology is non-isosceles
Trapezoidal cross-section.
7. photovoltaic welding belt according to claim 6, which is characterized in that the lower plane width of the welding ontology is 0.6mm-
The thickness of 1.2mm, the welding ontology are 2.0mm-2.8mm.
8. a kind of photovoltaic module, which is characterized in that including claim 1 to 7 any one of them photovoltaic welding belt as above and light
Lie prostrate cell piece；
Wherein, the photovoltaic cell is connected with each other by the photovoltaic welding belt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810263562.3A CN108417657A (en) | 2018-03-28 | 2018-03-28 | A kind of photovoltaic welding belt and photovoltaic module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810263562.3A CN108417657A (en) | 2018-03-28 | 2018-03-28 | A kind of photovoltaic welding belt and photovoltaic module |
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| Publication Number | Publication Date |
|---|---|
| CN108417657A true CN108417657A (en) | 2018-08-17 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810263562.3A Pending CN108417657A (en) | 2018-03-28 | 2018-03-28 | A kind of photovoltaic welding belt and photovoltaic module |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109148626A (en) * | 2018-09-10 | 2019-01-04 | 浙江晶科能源有限公司 | A kind of optically focused welding and solar cell module, pinch roller |
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2018
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Patent Citations (8)
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| CN104157712A (en) * | 2013-07-31 | 2014-11-19 | 凡登（江苏）新型材料有限公司 | Photovoltaic welding strip |
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| CN204271107U (en) * | 2014-12-25 | 2015-04-15 | 深圳市华光达科技有限公司 | The solar cell photovoltaic welding of new type section |
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| CN109148626A (en) * | 2018-09-10 | 2019-01-04 | 浙江晶科能源有限公司 | A kind of optically focused welding and solar cell module, pinch roller |
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