CN106784102A - Photovoltaic welding belt and photovoltaic module - Google Patents
Photovoltaic welding belt and photovoltaic module Download PDFInfo
- Publication number
- CN106784102A CN106784102A CN201710022085.7A CN201710022085A CN106784102A CN 106784102 A CN106784102 A CN 106784102A CN 201710022085 A CN201710022085 A CN 201710022085A CN 106784102 A CN106784102 A CN 106784102A
- Authority
- CN
- China
- Prior art keywords
- photovoltaic
- welding belt
- photovoltaic welding
- degree
- belt
- 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.)
- Pending
Links
- 238000003466 welding Methods 0.000 title claims abstract description 91
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000011159 matrix material Substances 0.000 claims abstract description 15
- 239000000463 material Substances 0.000 claims description 23
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 21
- 229910052802 copper Inorganic materials 0.000 claims description 21
- 239000010949 copper Substances 0.000 claims description 21
- 238000009713 electroplating Methods 0.000 claims description 3
- 210000004027 cell Anatomy 0.000 abstract description 19
- 238000000034 method Methods 0.000 abstract description 7
- 230000011514 reflex Effects 0.000 abstract description 4
- 239000011521 glass Substances 0.000 abstract 1
- 238000007747 plating Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005253 cladding Methods 0.000 description 2
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000010422 painting Methods 0.000 description 2
- 229910001074 Lay pewter Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 229910000679 solder Inorganic materials 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
- H01L31/04—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
-
- 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
-
- 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
- H01L31/054—Optical elements directly associated or integrated with the PV cell, e.g. light-reflecting means or light-concentrating means
- H01L31/0547—Optical elements directly associated or integrated with the PV cell, e.g. light-reflecting means or light-concentrating means comprising light concentrating means of the reflecting type, e.g. parabolic mirrors, concentrators using total internal reflection
-
- 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
- Y02E10/52—PV systems with concentrators
Abstract
The invention discloses photovoltaic welding belt and photovoltaic module, it is related to photovoltaic cell interconnection technique field.A kind of photovoltaic welding belt includes matrix and the tin layers being coated on outside matrix, and the cross section triangularity of photovoltaic welding belt, side is included for the bottom surface of welding and for two reflective inclined-planes.The invention also discloses a kind of photovoltaic module, it includes the photovoltaic cell connected by above-mentioned photovoltaic welding belt.The light that photovoltaic welding belt of the invention will can be incided on photovoltaic welding belt reflexes to the glassy layer inner surface of photovoltaic module at a certain angle, photovoltaic cell surface is projected back to after being totally reflected on glass air interface, the luminous energy for capturing, so as to improve the power output of component.Photovoltaic module of the invention improves the utilization rate of light source by above-mentioned photovoltaic welding belt, so that improve generating efficiency.
Description
Technical field
The present invention relates to photovoltaic cell interconnection technique field, photovoltaic welding belt and photovoltaic module are specifically related to.
Background technology
Photovoltaic welding belt is also referred to as painting tin copper strips, and it is uniform thick in one layer of the copper strip surface coating of the flat belt-like of certain size
The tin solder of degree is constituted, and its major function is that connection and the conductive work of cell piece and terminal box are played in the production of photovoltaic module
With the collection efficiency of, its performance indications and solar photovoltaic assembly electric current, the fragment rate of solar battery sheet and photovoltaic module
The aspects such as long-term reliability have close contact, are the important materials during welding photovoltaic component.
Photovoltaic welding belt is divided into interconnection belt and convergent belt again by purposes is different.Interconnection belt is for photovoltaic cell to be connected into light
Volt battery strings, it is welded in the main gate line of photovoltaic cell.Convergent belt is used to connect photovoltaic cell string and terminal box.Present light
In volt battery, interconnection belt and convergent belt are arranged in the table of photovoltaic cell mostly using the painting tin copper strips of existing flat belt-like
On face, when this photovoltaic cell is used, light source be mapped on photovoltaic welding belt after during almost all reflexes to air, only small part
Can diffusing reflection using therefore wasting, photovoltaic can not be reduced well to the light source on photovoltaic cell, causing to be blocked by welding
The power output of battery.
The content of the invention
It is an object of the present invention to provide a kind of reflection reduced to light source, the light source utilization rate of raising photovoltaic cell
Photovoltaic welding belt.
It is a kind of using above-mentioned photovoltaic welding belt, light source utilization rate photovoltaic module high another object of the present invention is to provide.
To achieve the above object, the technical solution used in the present invention is：
A kind of photovoltaic welding belt, including matrix and the tin layers being coated on outside matrix, the cross section triangularity of photovoltaic welding belt, including with
In the bottom surface of welding and for two reflective inclined-planes.
Further, matrix includes that cross section is the Copper base material of triangle, and tin layers are coated by hot dip or electroplating technology
In Copper base material surface.
Further, into equilateral triangle, the length of side of photovoltaic welding belt cross section is 0.3- for the cross section of photovoltaic welding belt
1.5mm。
Further, tin thickness is 15-30 μm.
Further, the inclined-plane of photovoltaic welding belt includes the multiple folding faces set gradually to top from the bottom of photovoltaic welding belt,
And multiple folding faces are sequentially reduced with the angle of photovoltaic welding belt bottom surface.
Further, and same inclined-plane folding face and bottom surface angle between 15 degree to 75 degree.
Further, the quantity in folding face is 3, and 3 folding faces are respectively 60 degree, 45 degree, 30 degree with the angle of bottom surface.
Further, the quantity in folding face is 2, and 2 folding faces are respectively 60 degree, 45 degree with the angle of bottom surface.
A kind of photovoltaic module, it is characterised in that：Including the photovoltaic cell connected by above-mentioned photovoltaic welding belt.
The beneficial effects of the invention are as follows：Photovoltaic welding belt of the invention can will incide light on photovoltaic welding belt with inclination angle
Degree reflexes to the glassy layer inner surface of photovoltaic module, and photovoltaic cell surface is projected back to again after being totally reflected on glass-air interface,
Photovoltaic cell captures the luminous energy after reflection, so as to improve the power output of component.Photovoltaic module of the invention passes through above-mentioned light
Volt welding improves the utilization rate of light source, so that improve generating efficiency.
Brief description of the drawings
Fig. 1 is the stereogram of the first embodiment of photovoltaic welding belt of the present invention；
Fig. 2 is the top view of Fig. 1；
Fig. 3 is the cross section view of the first embodiment of photovoltaic welding belt of the present invention；
Fig. 4 is the cross section view of second embodiment of photovoltaic welding belt of the present invention；
Fig. 5 is the cross section view of the third embodiment of photovoltaic welding belt of the present invention.
In figure：1- inclined-planes, 2- bottom surfaces, 3- foldings face, 4- matrixes, 5- tin layers.
Specific embodiment
In order that the technical problems to be solved by the invention, technical scheme and beneficial effect become more apparent, below tie
Drawings and Examples are closed, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only
It is used to explain the present invention, is not intended to limit the present invention.
As Figure 1-3, a kind of photovoltaic welding belt, including matrix 4 and the tin layers 5 being coated on outside matrix 4, the horizontal stroke of photovoltaic welding belt
Section triangularity, including for the bottom surface 2 welded and for two reflective inclined-planes 1.When using, photovoltaic welding belt energy of the invention
The glassy layer inner surface that the light on photovoltaic welding belt reflexes to photovoltaic module with angle of inclination will be incided, in glass-air circle
Photovoltaic cell surface is projected back to after being totally reflected on face again, photovoltaic cell captures the luminous energy after reflection, so as to improve the defeated of component
Go out power.Photovoltaic module of the invention improves the utilization rate of light source by above-mentioned photovoltaic welding belt, so that improve generating efficiency.Specifically
, the inside of photovoltaic welding belt can be that cross section is the Copper base material of triangle, and the surface of Copper base material is provided with tin layers 5, make light
Lie prostrate the cross section triangularity of welding.The material of tin layers 5 can be the alloy materials such as SAC, leypewter, gun-metal
Material one of which material, the surface of Copper base material is plated in by the processing method of hot dip or plating, is primarily served protection and is welded
Effect.No matter additionally, which kind of shape matrix 4 is, it is only necessary to meet the cross section triangularity of photovoltaic welding belt, that is, being included in this
Within the technical scheme of invention, for example, the section of the matrix 4 of inside is circle, photovoltaic welding belt is made by the tin layers 5 of outside cladding
Section formed triangle.
Further, as shown in figure 3, matrix 4 includes that cross section is the Copper base material of triangle, tin layers 5 by hot dip or
Electroplating technology is coated on Copper base material surface.Copper base material cross section is changed to triangle, it is thick original photovoltaic welding belt tin layers 5 are not changed
In the case of degree, realize the reflective multiplexing in part on welding surface and ensure welding weld strength.Compared with flat photovoltaic welding belt,
The width of bottom surface 2 of photovoltaic welding belt of the present invention can be identical with the width of existing flat photovoltaic welding belt, it is ensured that with photovoltaic module
Weld strength, welding sectional area is adjusted by adjusting the height of photovoltaic welding belt of the present invention.Can by reducing welding sectional area,
Copper base material consumption is reduced, cost has been saved；Or increasing welding sectional area makes photovoltaic welding belt electrical efficiency high, reduces heating.It is right
In by the larger convergent belt of electric current, the electric conductivity of photovoltaic welding belt is improved, reduce heating, be extremely necessary.It is simultaneously copper-based
Material is easy to process, and after its cross section is processed into triangularity, the surface in Copper base material by way of hot dip or plating is formed
Tin layers 5, you can be made the photovoltaic welding belt of cross section triangularity, easy to make, process is simple.
Further, as Figure 1-3, the cross section of photovoltaic welding belt is into equilateral triangle, the side of photovoltaic welding belt cross section
A length of 0.3-1.5mm.Photovoltaic welding belt is the welding requirements for meeting photovoltaic module, it is ensured that while welding quality, bonding strength again
Photovoltaic module is not blocked excessively, preferably photovoltaic welding belt cross section can be arranged to equilateral three of the length of side in 0.3-1.5mm
It is angular.Specifically, it is the Copper base material of equilateral triangle as matrix to use cross section, the surface of Copper base material by hot dip or
Electric plating method processes uniform tin layers 5, forms the photovoltaic welding belt of this programme.
Further, as shown in figure 3, the thickness of tin layers 5 is 15-30 μm.In section for the Copper base material surface of triangle is uniform
Cladding tin layers 5, the thickness of tin layers 5 primarily serves the effect of protection and welding between 15-30 μm.
Further, as illustrated in figures 4-5, the inclined-plane 1 of photovoltaic welding belt includes being set successively to top from the bottom of photovoltaic welding belt
The multiple folding faces 3 put, and multiple folding face 3 is sequentially reduced with the angle of photovoltaic welding belt bottom surface 2.Inclined-plane 1 is arranged to be rolled over by multiple
Face 3 is constituted, will be close to bottom surface 2 folding face 3 and bottom surface 2 angle set it is larger, it is ensured that the bottom of photovoltaic welding belt of the present invention
Face 2 and the intensity of the angle part of inclined-plane 1.Multiple folding faces 3 are sequentially reduced with the angle of photovoltaic welding belt bottom surface 2, make inclined-plane 1 by photovoltaic
The center outwardly convex of welding, increases the sectional area of photovoltaic welding belt, enhances the electric conductivity of photovoltaic welding belt.Specifically, matrix 4
It is Copper base material, the two sides of Copper base material are the multiple folding faces 3 set gradually to top from bottom, and multiple folding faces 3 and Copper base material
The angle of bottom surface 2 is sequentially reduced.Uniform tin layers 5, shape are processed by hot dip or electric plating method on the surface of Copper base material
The photovoltaic welding belt of cost approach.
Further, and same inclined-plane 1 folding face 3 and bottom surface 2 angle between 15 degree to 75 degree.
Further, as shown in figure 4, the quantity in folding face 3 is 3, and 3 folding faces 3 are respectively 60 with the angle of bottom surface 2
Degree, 45 degree, 30 degree.Each inclined-plane 1 is made up of 3 folding faces 3, and the folding face 3 and the angle of bottom surface 2 adjacent with bottom surface 2 is 60 degree, with
The adjacent folding face 3 in top is 30 degree with the angle of bottom surface 2, and middle folding face 3 and the angle of bottom surface 2 is 45 degree.
Further, as shown in figure 5, the quantity in folding face 3 is 2, and 2 folding faces 3 are respectively 60 with the angle of bottom surface 2
Degree, 45 degree.Each inclined-plane 1 is made up of 2 folding faces 3, and the folding face 3 and the angle of bottom surface 2 adjacent with bottom surface 2 is 60 degree, with top
Adjacent folding face 3 is 45 degree with the angle of bottom surface 2.
A kind of photovoltaic module, it is characterised in that：Including the photovoltaic cell connected by above-mentioned photovoltaic welding belt.Photovoltaic cell it
Between connected by above-mentioned photovoltaic welding belt, the utilization rate of light source is improve, so that improve generating efficiency.
These are only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all it is of the invention spirit and
Any modification, equivalent and improvement for being made within principle etc., should be included within the scope of the present invention.
Claims (9)
1. a kind of photovoltaic welding belt, including matrix（4）Be coated on described matrix（4）Outer tin layers（5）, it is characterised in that：It is described
The cross section triangularity of photovoltaic welding belt, including the bottom surface for welding（2）With for two reflective inclined-planes（1）.
2. photovoltaic welding belt according to claim 1, it is characterised in that：Described matrix（4）It is the copper of triangle including cross section
Base material, the tin layers（5）The Copper base material surface is coated on by hot dip or electroplating technology.
3. photovoltaic welding belt according to claim 1, it is characterised in that：The cross section of the photovoltaic welding belt into equilateral triangle,
The length of side of the photovoltaic welding belt cross section is 0.3-1.5mm.
4. photovoltaic welding belt according to claim 1, it is characterised in that：The tin layers（5）Thickness is 15-30 μm.
5. photovoltaic welding belt according to claim 1, it is characterised in that：The inclined-plane of the photovoltaic welding belt（1）Including by the light
Lie prostrate multiple folding faces that the bottom of welding sets gradually to top（3）, and multiple folding faces（3）With the photovoltaic welding belt bottom surface
（2）Angle be sequentially reduced.
6. photovoltaic welding belt according to claim 5, it is characterised in that：And same inclined-plane（1）The folding face（3）With the bottom
Face（2）Angle between 15 degree to 75 degree.
7. photovoltaic welding belt according to claim 5, it is characterised in that：The folding face（3）Quantity be 3, and 3 foldings
Face（3）With bottom surface（2）Angle be respectively 60 degree, 45 degree, 30 degree.
8. photovoltaic welding belt according to claim 5, it is characterised in that：The folding face（3）Quantity be 2, and 2 foldings
Face（3）With bottom surface（2）Angle be respectively 60 degree, 45 degree.
9. a kind of photovoltaic module, it is characterised in that：Including the light connected by photovoltaic welding belt described in claim 1-8 any one
Volt battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710022085.7A CN106784102A (en) | 2017-01-12 | 2017-01-12 | Photovoltaic welding belt and photovoltaic module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710022085.7A CN106784102A (en) | 2017-01-12 | 2017-01-12 | Photovoltaic welding belt and photovoltaic module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106784102A true CN106784102A (en) | 2017-05-31 |
Family
ID=58947393
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710022085.7A Pending CN106784102A (en) | 2017-01-12 | 2017-01-12 | Photovoltaic welding belt and photovoltaic module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106784102A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107799615A (en) * | 2017-10-20 | 2018-03-13 | 杭州瞩日能源科技有限公司 | Solar cell blade unit, photovoltaic cell module and its preparation technology |
| CN109244169A (en) * | 2018-08-08 | 2019-01-18 | 海安县能达电气有限公司 | A kind of NEW TYPE OF COMPOSITE photovoltaic welding belt |
| CN109346548A (en) * | 2018-11-27 | 2019-02-15 | 英利能源（中国）有限公司 | Photovoltaic module welding and photovoltaic module |
| CN109896349A (en) * | 2019-03-28 | 2019-06-18 | 保定易通光伏科技股份有限公司 | A kind of axis welding equipment band and winding method |
| CN110071190A (en) * | 2019-05-22 | 2019-07-30 | 通威太阳能（成都）有限公司 | A kind of welding structure reducing the reflective loss of welding |
| CN111223953A (en) * | 2019-11-29 | 2020-06-02 | 英利能源（中国）有限公司 | Reflective welding strip, photovoltaic module and preparation method |
| CN113707738A (en) * | 2021-08-25 | 2021-11-26 | 上海晶科绿能企业管理有限公司 | Welding strip and battery piece assembly |
| WO2022193578A1 (en) * | 2021-03-16 | 2022-09-22 | 常州时创能源股份有限公司 | Solar cell connecting method |
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| CN206657815U (en) * | 2017-01-12 | 2017-11-21 | 保定易通光伏科技股份有限公司 | Photovoltaic welding belt and photovoltaic module |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107799615A (en) * | 2017-10-20 | 2018-03-13 | 杭州瞩日能源科技有限公司 | Solar cell blade unit, photovoltaic cell module and its preparation technology |
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| CN109346548A (en) * | 2018-11-27 | 2019-02-15 | 英利能源（中国）有限公司 | Photovoltaic module welding and photovoltaic module |
| CN109896349A (en) * | 2019-03-28 | 2019-06-18 | 保定易通光伏科技股份有限公司 | A kind of axis welding equipment band and winding method |
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| CN110071190A (en) * | 2019-05-22 | 2019-07-30 | 通威太阳能（成都）有限公司 | A kind of welding structure reducing the reflective loss of welding |
| CN111223953A (en) * | 2019-11-29 | 2020-06-02 | 英利能源（中国）有限公司 | Reflective welding strip, photovoltaic module and preparation method |
| WO2022193578A1 (en) * | 2021-03-16 | 2022-09-22 | 常州时创能源股份有限公司 | Solar cell connecting method |
| CN113707738A (en) * | 2021-08-25 | 2021-11-26 | 上海晶科绿能企业管理有限公司 | Welding strip and battery piece assembly |
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Application publication date: 20170531 |