CN109411559A - Solar battery string and solar cell module - Google Patents
Solar battery string and solar cell module Download PDFInfo
- Publication number
- CN109411559A CN109411559A CN201811502785.7A CN201811502785A CN109411559A CN 109411559 A CN109411559 A CN 109411559A CN 201811502785 A CN201811502785 A CN 201811502785A CN 109411559 A CN109411559 A CN 109411559A
- Authority
- CN
- China
- Prior art keywords
- solar battery
- conductive sheet
- solar
- cell
- battery string
- 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
- 239000000463 material Substances 0.000 claims description 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 6
- 239000005030 aluminium foil Substances 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000011889 copper foil Substances 0.000 claims description 3
- 239000011521 glass Substances 0.000 abstract description 5
- 230000009467 reduction Effects 0.000 abstract description 3
- 238000005457 optimization Methods 0.000 abstract description 2
- 210000004027 cell Anatomy 0.000 description 60
- 238000003466 welding Methods 0.000 description 14
- 238000000034 method Methods 0.000 description 5
- 238000005520 cutting process Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000006071 cream Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000008033 biological extinction Effects 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 238000005304 joining Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000031700 light absorption Effects 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000011514 reflex Effects 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 230000009466 transformation Effects 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
-
- 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
It includes: multi-disc solar battery cell arranged in parallel that the present invention, which provides a kind of solar battery string and solar cell module, the solar battery string,；And it is separately connected the conductive sheet of two neighboring solar battery cell, conductive sheet is divided into the first side and second side in the direction of the width, wherein, the upper surface of the first side of conductive sheet connects the back electrode of one of described two adjacent solar battery cells and the lower surface of second side connects the main gate line of another solar battery cell.Solar battery string according to an embodiment of the present invention, conductive sheet can reflect light to glass and go back to battery surface again, increase luminous intensity, increase generated energy, and due to not being stacked between adjacent cell piece, optimization conductive sheet and the shape of battery main gate line can be passed through, the light of battery unit is blocked in reduction, the utilization rate of solar battery cell is improved, the power loss of solar battery cell is reduced, to realize the high power of solar battery string.
Description
Technical field
The present invention relates to technical field of solar batteries, in particular to a kind of solar battery string and solar battery group
Part.
Background technique
The high power technology of existing solar cell module, such as more main grids (MBB), half, imbrication, are all by changing
The string connection type in power transformation pond reduces current loss or light eclipsing loss, so that lifting assembly power, realizes high power.But
Though MBB, half have promotion, space is limited, is extremely difficult to 400W, and although imbrication component realizes 400W, imbrication component is logical
Conductive glue connection is crossed, needs to invest new equipment, higher cost, and the reliability of conductive glue connection is not also fully solved, imbrication group
Part cell piece light, which blocks, causes cell piece feed consumption excessively high.
Summary of the invention
In view of this, the present invention provides a kind of solar battery string, by changing the connection type of solar battery cell,
The light of battery unit is blocked in reduction, improves the utilization rate of solar battery cell, reduces the function of solar battery cell
Rate loss, to realize the high power of solar battery string.
The present invention also provides a kind of solar cell modules with above-mentioned solar battery string.
In order to solve the above technical problems, the invention adopts the following technical scheme:
The solar battery string of embodiment according to a first aspect of the present invention, comprising:
Multi-disc solar battery cell arranged in parallel；And
It is separately connected the conductive sheet of two neighboring solar battery cell, the conductive sheet is divided in the direction of the width
For the first side and second side, wherein the upper surface of the first side of the conductive sheet connects two adjacent solar-electricities
The back electrode of one of pool unit and the lower surface of second side connect the main gate line of another solar battery cell.
Preferably, the length of the conductive sheet is less than or equal to the length of the solar battery cell.
Preferably, the solar battery cell is solar battery slice, and the main gate line is set to the solar-electricity
The marginal position and its extending direction of pond slice are identical as the extending direction of the conductive sheet.
It is further preferred that the conductive sheet shape is rectangle.
Preferably, the main gate line is set to the marginal position of the solar battery cell and its extending direction is led with described
The extending direction of electric sheet material is identical, and the width of second side of the conductive sheet is less than or equal to the width of the main gate line.
It is further preferred that the conductive sheet, which is formed as described second side, is provided with the band-like of multiple grooves, it is described
The side of main gate line being connected with described second side is formed with multiple grooves, the groove of the conductive sheet and the main gate line
Groove is corresponding.
Still further preferably, first side of the conductive sheet is also equipped with multiple grooves, the conductive sheet
Groove it is corresponding with the groove of the back electrode.
The solar battery cell is double-side cell piece.
Preferably, the conductive sheet is tin-coated copper material pieces, copper foil, aluminium foil, soft board or printed wiring board.
Preferably, the solar battery cell and the conductive sheet are welded to connect.
Preferably, the solar battery cell and the conductive sheet are welded to connect by tin cream.
Optionally, the solar battery cell and the conductive sheet are welded to connect by conducting resinl.
The solar cell module of embodiment according to a second aspect of the present invention, including the sun described in multiple above-described embodiments
It can battery strings.
Above-mentioned technical proposal of the invention one of at least has the advantages that:
1) solar battery string according to an embodiment of the present invention, by the way that every two adjacent battery unit to be connected to
The upper and lower surface of conductive sheet, and adjacent one end of two battery units is aligned in a longitudinal direction without being overlapped, and is promoted too
The light utilization efficiency on positive energy battery unit surface, realizes the high power of solar battery string, meanwhile, reduce the material of cell piece
Waste；
2) compared with the conducting resinl Joining Technology in the same industry, welding requirements compatibility of the invention is high, and maturation can be used
Welding procedure, do not need to purchase new equipment, convenient for welding, saved cost；
3) reliability of welding is improved.
Detailed description of the invention
Fig. 1 is the schematic perspective view of the solar battery string of the embodiment of the present invention；
Fig. 2 is the front view of the solar battery string of the embodiment of the present invention；
Fig. 3 is the bottom view of the solar battery string of the embodiment of the present invention；
Fig. 4 is the side view of the solar battery string of the embodiment of the present invention；
Fig. 5 is the attachment structure schematic diagram of two adjacent solar battery cells of the embodiment of the present invention；
Fig. 6 is the structural schematic diagram of the conductive sheet of one embodiment of the invention；
Fig. 7 is the structural schematic diagram of the conductive sheet of another embodiment of the present invention；
Fig. 8 is the structural schematic diagram of the conductive sheet of further embodiment of this invention.
Appended drawing reference:
Solar battery string 100；
Solar battery cell 10；
Conductive sheet 20；First side 21；Second side 22；Groove 23；Protrusion 24.
Specific embodiment
Solar battery string 100 according to an embodiment of the present invention is specifically described in conjunction with attached drawing first below.
As shown in Figures 1 to 8, solar battery string 100 according to an embodiment of the present invention, including multi-disc are arranged in parallel
Solar battery cell 10, and be separately connected the conductive sheet 20 of two neighboring solar battery cell 10, conductive sheet
20 are divided into the first side 21 and second side 22 in the direction of the width, wherein the upper end of the first side 21 of conductive sheet 20 connects phase
The back electrode of one of the two adjacent solar battery cells 10 and lower end of second side 22 connects another solar battery cell
10 main gate line.
That is, solar battery string 100 includes multiple solar battery cells 10, multiple solar battery cells 10
It is arranged in parallel, and every two solar battery cell 10 is connected by conductive sheet 20, wherein conductive sheet 20 is in width
Direction is divided into two parts, respectively the first side 21 and second side 22, the upper end of the first side 21 and one of solar battery
Unit 10 connects, and the lower end of second side 22 is connected with another solar battery cell 10, in other words, every two solar energy
Battery unit 10 is connected in parallel at the upper and lower surfaces of conductive sheet 20, and the adjacent both ends portion of two solar battery cells 10
It is not overlapped, the connection type, avoids mutually blocking between two solar battery cells 10 as far as possible, and irradiate in light
When to the surface of conductive sheet, light can be reflexed to the surface of solar battery cell by conductive sheet, or reflex to carrying
The utensil of cell piece, on the surface that light is reflexed to battery unit by utensil, increases the intensity of light on glass, into
And the extinction amount on battery unit surface is improved, improve the output power of solar battery string 100.
Solar battery string 100 according to an embodiment of the present invention as a result, increases the light absorption of battery unit, Jin Erzeng
The big generated energy of solar battery cell 10, improves the utilization rate of solar battery cell, realizes solar battery string
100 high power.
According to one embodiment of present invention, the length of conductive sheet 20 is less than or equal to the length of solar battery cell 10
Degree, can be to avoid the waste of material, while extra material being avoided to block the formation of solar battery cell 10, influences solar energy
The collection of 10 pairs of light of battery unit.
According to one embodiment of present invention, solar battery cell 10 is solar battery slice, wherein main gate line is set
In solar battery cell 10 marginal position and its extending direction it is identical as the extending direction of conductive sheet 20.It needs to illustrate
It is that solar battery cell 10 described herein is rectangular solar battery cell, it can be by conventional square
Solar battery is obtained by cutting, for example, the solar battery of 156mm × 156mm such as is carried out at point cutting, such as second-class
Cutting is cut, trisection is cut, the quartering is cut, five equal parts are cut, six equal parts are cut etc..Correspondingly, after equal part cutting too
It is positive can the length-width ratio of battery unit 10 be about 2:1,3:1,4:1,5:1,6:1 etc., wherein preferably from about 5:1,6:1.
Further, conductive sheet 20 can be formed as rectangle.
Further, the width of second side of conductive sheet 20 is less than or equal to the width of main gate line.That is, lead
The outer edge of second side of electric sheet material 20 is located in main gate line, avoids the outer edge of second side beyond main gate line, and to solar energy
The surface of battery unit 10 causes to block, and conductive sheet 20 can reflect light to component glass surface, then is refracted to battery table
Face increases battery and absorbs luminous energy, promotes generated energy, further, conductive sheet may be configured as reflective solder strip, reflective pad pasting
Deng the bigger luminous reflectanc for promoting conductive sheet 20.
In addition, as shown in fig. 7, conductive sheet 20, which may be formed as second side, is provided with the band-like of multiple grooves 23, institute
The side being connected with described second side for stating main gate line is formed with multiple grooves 23, the groove 23 of the conductive sheet 20 with it is described
The groove of main gate line is corresponding, that is to say, that by the way that groove is arranged on conductive sheet 20 and main gate line, which can subtract
It is few that 10 light-receiving surface of solar battery cell is blocked；
It preferably, at this time can be excellent as shown in figure 8, when the first side of conductive sheet 20 and second side are all provided with fluted
The solar battery cell 10 of choosing be double-side cell piece, that is to say, that the two sides of conductive sheet 20 be all provided with it is reeded band-like, it is double
It is also provided with reeded band-like in the main gate line and back electrode of face cell piece, the groove of the two is overlapped setting, can effectively drop
The shading rate on low battery unit surface further increases the extinction area of solar cell surface.
In one embodiment of the invention, conductive sheet 20 be tin-coated copper material pieces, copper foil, aluminium foil, soft board (FPC,
Flexible Printed Circuit), printed wiring board (PCB, Printed Circuit Board), solar battery list
Member 10 is welded to connect with conductive sheet 20, the welding manner, it is desirable that and lower, welding technique is relatively mature, and welding is relatively firm,
Compared with conducting resinl Joining Technology, welding requirements compatibility of the invention is high, does not need to purchase new equipment, has saved cost.
Preferably, solar battery cell 10 and conductive sheet 20 are welded to connect by tin cream.When welding, tin cream fusing
Afterwards, there is certain mobility, connection is realized in filling play movement, it is ensured that welding effect.
Optionally, solar battery cell 10 and conductive sheet 20 are welded to connect by conducting resinl.
It, can be by by every two adjacent solar-electricity in short, solar battery string 100 according to an embodiment of the present invention
Pool unit 10 is not overlapped connection, enables conductive sheet that light is reflexed to solar battery cell surface or is reflected into setting
It is reflected into battery surface again by glass on the glass of battery unit periphery, increases the light intensity of battery surface, increases
Generated energy further due to not being stacked between adjacent cell piece, can pass through optimization conductive sheet and the shape of battery main gate line
The light of battery unit is blocked in shape, reduction, improves the utilization rate of cell piece, reduces the power damage of solar battery cell
It loses, to realize the high power of solar battery string, and welding requirements compatibility is high, and mature welding procedure can be used, do not need
New equipment is purchased, the reliability of welding is improved, has saved cost.
The solar cell module of embodiment according to a second aspect of the present invention, the solar-electricity including multiple above-described embodiments
Pond string 100, since solar battery string 100 according to the above embodiment of the present invention has above-mentioned technique effect, according to this
The solar cell module of inventive embodiments also has corresponding technical effect, that is, the light for reducing cell piece is blocked, improved
The utilization rate of solar battery cell, and increase the light intensity of solar cell surface, realize solar battery string and
The high power of component improves the reliability of welding, has saved cost.
The other structures of solar cell module according to an embodiment of the present invention and operation for those skilled in the art and
Speech is all to be understood that and easy to accomplish, therefore is not described in detail.
It is the preferred embodiment of the present invention above, it is noted that for those skilled in the art,
Without departing from the principle of the present invention, it can also make several improvements and retouch, these improvements and modifications also should be regarded as this
The protection scope of invention.
Claims (11)
1. a kind of solar battery string characterized by comprising
Multi-disc solar battery cell arranged in parallel；And
It is separately connected the conductive sheet of two neighboring solar battery cell, the conductive sheet is divided into the direction of the width
Side and second side, wherein the upper surface of the first side of the conductive sheet connects two adjacent solar battery lists
The back electrode of one of member and the lower surface of second side connect the main gate line of another solar battery cell.
2. solar battery string according to claim 1, which is characterized in that the length of the conductive sheet is less than or equal to
The length of the solar battery cell.
3. solar battery string according to claim 1, which is characterized in that the solar battery cell is solar-electricity
Pond slice, the main gate line are set to the marginal position of solar battery slice and its extending direction and the conductive sheet
Extending direction is identical.
4. solar battery string according to claim 3, which is characterized in that the shape of the conductive sheet is rectangle.
5. solar battery string according to claim 3, which is characterized in that the width of second side of the conductive sheet is small
In or equal to the main gate line width.
6. solar battery string according to claim 3, which is characterized in that the conductive sheet is formed as described second side
It is provided with the band-like of multiple grooves, the side of the main gate line being connected with described second side is formed with multiple grooves, described to lead
The groove of electric sheet material is corresponding with the groove of the main gate line.
7. solar battery string according to claim 6, which is characterized in that first side of the conductive sheet is also set
Multiple grooves are equipped with, the groove of the conductive sheet is corresponding with the groove of the back electrode.
8. solar battery string according to claim 7, which is characterized in that the solar battery cell is double-side cell
Piece.
9. solar battery string according to claim 1, which is characterized in that the conductive sheet be tin-coated copper material pieces,
Copper foil, aluminium foil, soft board or printed wiring board.
10. solar battery string according to claim 9, which is characterized in that the solar battery cell is led with described
Electric sheet material is welded to connect.
11. a kind of solar cell module, which is characterized in that including multiple solar energy of any of claims 1-10
Battery strings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811502785.7A CN109411559A (en) | 2018-12-10 | 2018-12-10 | Solar battery string and solar cell module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811502785.7A CN109411559A (en) | 2018-12-10 | 2018-12-10 | Solar battery string and solar cell module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109411559A true CN109411559A (en) | 2019-03-01 |
Family
ID=65458041
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811502785.7A Pending CN109411559A (en) | 2018-12-10 | 2018-12-10 | Solar battery string and solar cell module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109411559A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112531059A (en) * | 2019-08-30 | 2021-03-19 | 松下电器产业株式会社 | Solar cell module and solar cell module manufacturing method |
| WO2024040704A1 (en) * | 2022-08-24 | 2024-02-29 | 横店集团东磁股份有限公司 | Solar cell, manufacturing method, and photovoltaic module |
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| JP2005142282A (en) * | 2003-11-05 | 2005-06-02 | Sharp Corp | Interconnector, solar cell string using it and its manufacturing method, and solar cell module using solar cell string |
| US20110147437A1 (en) * | 2009-12-22 | 2011-06-23 | Kioto Photovoltaics Gmbh | Device for fixing conductor tracks on a solar cell |
| US20140124014A1 (en) * | 2012-11-08 | 2014-05-08 | Cogenra Solar, Inc. | High efficiency configuration for solar cell string |
| CN106887480A (en) * | 2017-04-13 | 2017-06-23 | 中节能太阳能科技（镇江）有限公司 | A kind of multi-disc splices efficient crystal silicon battery component |
| WO2017190398A1 (en) * | 2016-05-06 | 2017-11-09 | 协鑫集成科技股份有限公司 | Solar cell module and manufacturing method therefor |
| CN209266426U (en) * | 2018-12-10 | 2019-08-16 | 上海晶澳太阳能科技有限公司 | Solar battery string and solar cell module |
-
2018
- 2018-12-10 CN CN201811502785.7A patent/CN109411559A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005142282A (en) * | 2003-11-05 | 2005-06-02 | Sharp Corp | Interconnector, solar cell string using it and its manufacturing method, and solar cell module using solar cell string |
| US20110147437A1 (en) * | 2009-12-22 | 2011-06-23 | Kioto Photovoltaics Gmbh | Device for fixing conductor tracks on a solar cell |
| US20140124014A1 (en) * | 2012-11-08 | 2014-05-08 | Cogenra Solar, Inc. | High efficiency configuration for solar cell string |
| WO2017190398A1 (en) * | 2016-05-06 | 2017-11-09 | 协鑫集成科技股份有限公司 | Solar cell module and manufacturing method therefor |
| CN106887480A (en) * | 2017-04-13 | 2017-06-23 | 中节能太阳能科技（镇江）有限公司 | A kind of multi-disc splices efficient crystal silicon battery component |
| CN209266426U (en) * | 2018-12-10 | 2019-08-16 | 上海晶澳太阳能科技有限公司 | Solar battery string and solar cell module |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112531059A (en) * | 2019-08-30 | 2021-03-19 | 松下电器产业株式会社 | Solar cell module and solar cell module manufacturing method |
| WO2024040704A1 (en) * | 2022-08-24 | 2024-02-29 | 横店集团东磁股份有限公司 | Solar cell, manufacturing method, and photovoltaic module |
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