CN106960889A - A kind of solar cell module - Google Patents
A kind of solar cell module Download PDFInfo
- Publication number
- CN106960889A CN106960889A CN201710391844.7A CN201710391844A CN106960889A CN 106960889 A CN106960889 A CN 106960889A CN 201710391844 A CN201710391844 A CN 201710391844A CN 106960889 A CN106960889 A CN 106960889A
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- China
- Prior art keywords
- battery strings
- series
- battery
- solar cell
- polarity
- 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
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 6
- 230000005611 electricity Effects 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000178 monomer Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000003466 welding Methods 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
Abstract
The invention discloses a kind of solar cell module, battery unit including one or more series coupleds or parallel coupled, the battery unit includes the battery strings series of one or more series coupleds, the battery strings series includes one or more battery strings by busbar series coupled, and the battery strings include multiple cell pieces by interconnecting strip series coupled；Wherein, the polarity for the adjacent cell piece that two of which is connected by interconnecting strip is identical in the battery strings, and/or, when the battery strings series includes multiple battery strings, connected between two of which or two or more adjacent cell string by busbar, and the polarity of two cell pieces of the junction is identical.The present invention is when solar components are vertically installed, if run into 100% area of the monolithic battery during horizontal shadow occlusion is often gone here and there, component power exports the output that will have half, therefore present invention reduction solar cell module electrical losses, improves solar cell module hot spot power loss.
Description
Technical field
The invention belongs to technical field of solar, and in particular to a kind of solar cell module.
Background technology
Solar irradiation forms the new electronics pair of hole one, in the presence of p-n junction electric field, hole on semiconductor p-n junctions
P areas are flowed to by n areas, electronics flows to n areas by p areas, connects and electric current is just formed after circuit.Here it is photoelectric effect solar cell
Operation principle.
Solar power generation has two ways, and one kind is light-heat-electricity conversion regime, and another is the directly conversion of light-electricity
Mode, wherein light-electricity directly conversion regime which are to utilize photoelectric effect, and solar radiant energy is directly changed into outer
Portion is encapsulated and internal connection, the minimum indivisible solar battery group that can be provided separately direct current electricity output are attached together and put, and cries too
Turn into component after positive energy battery component, i.e., multiple monomer solar cell interconnection packages.
Single solar cell is often because output voltage is too low, and output current is improper, crystal silicon solar energy battery sheet
Body is again relatively more crisp, it is impossible to independently resists extraneous mal-condition, thus needs monomer solar battery sheet to enter in actual use
Row series and parallel, and encapsulated, outer even electric wire is picked out, as the solar battery group that independently can be used as photo-voltaic power supply
Part (also referred to as photovoltaic module).The luminous energy of the sun is directly changed the electricity needed for user by solar cell module by absorbing sunlight
Can output, photovoltaic power output is general from several watts to hundreds of watts of zero point.
Cell piece used by existing conventional solar cell module is complete 156*156mm batteries, solar cell
Have multiple solar cell strings in component, solar cell string by multiple complete 156*156mm cell pieces by interconnecting strip according to
Secondary series connection is (referring to Fig. 1), while each battery strings are in series (referring to Fig. 2) by busbar again, each of which string
Cell piece interconnection direction in solar cell string is consistent, i.e., cell piece polarity is positive and negative, just ... successively in battery strings
It is negative, positive, negative or negative, positive, negative ... positive and negative, just etc..Existing this connected mode not only interconnecting strip produce electricity loss compared with
Greatly, at the same solar cell module run into vertical install horizontal shadow occlusion often go here and there monolithic battery piece 100% area when,
The electric current of battery monomer, voltage are changed, and the power output of solar cell module will be greatly reduced, almost nil.
The content of the invention
In order to solve the above problems, the invention provides a kind of solar cell module, reduction solar cell module electricity
Loss is learned, improves solar cell module hot spot power loss.
The technical scheme is that：A kind of solar cell module, including one or more series coupleds or coupling in parallel
The battery unit of conjunction, the battery unit includes the battery strings series of one or more series coupleds, the battery strings series bag
Include one or more battery strings by busbar series coupled, the battery strings include multiple by interconnecting strip series coupled
Cell piece；
Wherein, the polarity for the adjacent cell piece that two of which is connected by interconnecting strip is identical in the battery strings, and/or,
When the battery strings series includes multiple battery strings, by converging between two of which or two or more adjacent cell string
Bar connection is flowed, and the polarity of two cell pieces of the junction is identical.
The multiple cell pieces of specification identical for cutting into complete solar battery sheet by slice process in the present invention,
Such as specification is 156*78mm, multiple cell pieces then is obtained into battery strings by interconnecting strip splicing, then multiple batteries are ganged up
Cross busbar splicing and obtain battery strings series.
By changing the interconnection direction of cell piece in battery strings in the present invention, i.e., by the adjacent electricity of two of which in battery strings
The polarity of pond piece is consistent so that in battery strings cell piece polarity be successively it is negative, positive, negative, positive ... positive and negative, positive and negative or
It is positive and negative, positive and negative ... negative, positive, negative, positive.
The present invention can also take another technical scheme, and the interconnection direction of cell piece in battery strings is consistent,
Cell piece polarity is positive and negative, just ... negative, positive, negative or negative, positive, negative ... positive and negative, just etc. successively i.e. in battery strings, and is led to
Crossing rotation battery strings makes the opposite interconnection direction of two string battery strings holding and by being spliced on busbar, and combination obtains battery
String series.
The present invention, which changes interconnection direction, can allow two battery strings after connection busbar to be parallel relationship, pass through
In parallel and cell piece, which cuts half, comprehensively reduces electrical losses.
Battery strings include multiple cell pieces, preferably, n-th of cell piece and (n+1)th battery in the battery strings
The polarity interconnected between piece is identical, wherein 1 ＜ n≤12.
As further preferred, the n is 10 or 12.
A range of big spacing is kept between this two panels cell piece that interconnection direction changes, and between other cell pieces
Away from remaining in that and spacing of a size in the prior art, for the ease of welding, preferably, n-th of cell piece with
The distance between (n+1)th cell piece is 10~30mm.
For the ease of being welded to two battery strings, preferably, battery strings series includes multiple battery strings, its
Integrated bus bar is welded with the cell piece at middle one or more battery string two ends, wherein two or two in battery strings series
It is connected between above adjacent cell string by busbar with integrated bus bar, and the polarity of two cell pieces of the junction
It is identical.The interconnection direction of cell piece in battery strings is consistent in the present invention, i.e., cell piece polarity is successively in battery strings
It is positive and negative, just ... negative, positive, negative or negative, positive, negative ... positive and negative, just etc., and protect two string battery strings by rotating battery strings
Hold opposite interconnection direction and by being spliced on integrated bus bar, combination obtains battery strings series.
Preferably, the distance between two polarity identical cell pieces of junction are described in the battery strings series
10~30mm.
Battery unit can have one or more in the present invention, preferably, the battery unit be two or two with
On, and the coupling of two or more battery units in parallel.Cause that battery unit is unaffected each other after parallel connection.
As further preferred, the battery unit includes two or more battery strings series, passes through busbar
Two or more battery strings series is connected, the junction of the busbar is located at the correspondence of polarity identical adjacent cell piece
At position.Parallel coupled between battery unit in the present invention, and it is by busbar that battery strings or battery strings series are upper mutual
The position that bracing interconnection direction changes is attached, and after being connected via busbar, battery strings series originally is separated into two
Into in parallel and simultaneously also in parallel with the busbar being connected between the part of individual part, i.e. busbar both sides, the two parts.
Compared with prior art, beneficial effects of the present invention are embodied in：
Slice process of the present invention cuts into complete solar battery sheet the cell piece of multiple same size sizes, and together
Parallel Design between two battery strings groups of Shi Caiyong, make the voltage and current of output not only with existing conventional solar cell module
It is essentially identical, but also make the electric current reduction by each cell piece, so that the string resistance reduction of component, the power output of component
Lifting, when solar components are vertically installed, if run into 100% area of the monolithic battery during horizontal shadow occlusion is often gone here and there,
Component power exports the output that will have half, therefore present invention reduction solar cell module electrical losses, improves solar energy
Battery component hot spot power loss.
Brief description of the drawings
Fig. 1 is the attachment structure schematic diagram of battery strings in the prior art.
Fig. 2 is the circuit connection diagram of solar components in the prior art.
Fig. 3 be the embodiment of the present invention 1 in battery strings attachment structure schematic diagram.
Fig. 4 be the embodiment of the present invention 2 in battery strings attachment structure schematic diagram.
Fig. 5 be the embodiment of the present invention 3 in battery strings attachment structure schematic diagram.
Fig. 6 be the embodiment of the present invention 4 in battery strings attachment structure schematic diagram.
Embodiment
Embodiment 1
As shown in figure 3, the present embodiment includes the battery unit of one or more series coupleds or parallel coupled (in figure not
Draw), the battery strings that battery unit includes one or more series coupleds are serial (being not drawn into figure), and battery strings series includes one
Individual or multiple battery strings 1 by busbar series coupled, battery strings 1 include multiple batteries by the series coupled of interconnecting strip 2
Piece 11；Wherein, the polarity for the adjacent cell piece 11 that two of which is connected by interconnecting strip 2 is identical in battery strings 1.
The multiple cell pieces of specification identical for cutting into complete solar battery sheet by slice process in the present invention
11, such as specification is 156*78mm, and multiple cell pieces 11 then are obtained into battery strings 1 by the splicing of interconnecting strip 2, then by multiple electricity
Pond string 1 obtains battery strings series by the splicing of busbar 2.By changing the interconnection side of cell piece 11 in battery strings 1 in the present invention
To the polarity of the adjacent cell piece 11 of two of which in battery strings 1 being consistent so that the pole of cell piece 11 in battery strings 1
Property is negative, positive, negative, positive ... positive and negative, positive and negative or positive and negative, positive and negative ... negative, positive, negative, positive successively.
Embodiment 2
As shown in figure 4, the present embodiment and the difference of embodiment 1 are, battery strings series 4 includes multiple battery strings 1, wherein
Connected between two or more adjacent cell strings 1 by busbar 3, and the polarity of two cell pieces 11 of the junction
It is identical, and the interconnection direction of cell piece 11 is consistent in battery strings 1, i.e., in battery strings 1 polarity of cell piece 11 be successively just,
It is negative, positive ... negative, positive, negative or negative, positive, negative ... positive and negative, just etc., and protect two string battery strings 1 by rotating battery strings 1
Hold opposite interconnection direction and by being spliced on busbar 3, combination obtains battery strings series 4.In the present invention in battery strings 1
The polarity interconnected between n-th of cell piece and (n+1)th cell piece is identical, wherein 1≤n≤, preferably n is 10 or 12, this implementation
N is 10 in example.And a range of big spacing is kept between this two panels cell piece 11 that interconnection direction changes, typically
Distance is set between 10~30mm, and the spacing of other cell pieces 11 is remained in that and spacing of a size in the prior art.
Embodiment 3
As shown in figure 5, the present embodiment and the difference of embodiment 2 are, the battery at wherein one or more two ends of battery strings 1
In the integrated bus bar that the interconnecting strip 2 being welded with piece 11 on the cell piece 11 with two ends is connected, wherein battery strings series
Connected between two or more adjacent cell strings by integrated bus bar, and two cell pieces 11 of the junction
Polarity is identical.
Embodiment 4
As shown in Fig. 4~Fig. 6, the present embodiment and the difference of embodiment 2 and embodiment 3 be, battery unit 5 be two or
Two or more, and the parallel coupled of two or more battery units 5, and battery unit 5 include two or two with
On battery strings series, two or more battery strings series is connected by busbar 3, the junction of the busbar 3 position
In the corresponding position of polarity identical adjacent cell piece 11.Parallel coupled between battery unit 5 in the present embodiment, and pass through
Battery strings 1 or the upper interconnecting strip 2 of battery strings series are interconnected the position that direction changes and are attached by busbar 3, via remittance
Flow after bar 3 connects, original battery strings series is separated into a parts and b parts of two parts, i.e. busbar both sides, a parts and
Into in parallel and simultaneously also in parallel with the busbar 3 being connected between b parts.
Embodiment 1~4 can also be combined in the present invention, be not limited to the mode described in embodiment 1~4.
Claims (8)
1. a kind of solar cell module, it is characterised in that the battery list including one or more series coupleds or parallel coupled
Member, the battery unit includes the battery strings series of one or more series coupleds, and the battery strings series includes one or many
The individual battery strings by busbar series coupled, the battery strings include multiple cell pieces by interconnecting strip series coupled；
Wherein, the polarity for the adjacent cell piece that two of which is connected by interconnecting strip is identical in the battery strings, and/or,
When the battery strings series includes multiple battery strings, busbar is passed through between two of which or two or more adjacent cell string
Connection, and the polarity of two cell pieces of the junction is identical.
2. solar cell module as claimed in claim 1, it is characterised in that n-th of cell piece and n-th in the battery strings
The polarity interconnected between+1 cell piece is identical, wherein 1 ＜ n≤12.
3. solar cell module as claimed in claim 2, it is characterised in that n-th of cell piece and (n+1)th battery
The distance between piece is 10 ~ 30mm.
4. solar cell module as claimed in claim 3, it is characterised in that the n is 10 or 12.
5. solar cell module as claimed in claim 1, it is characterised in that the battery strings series includes multiple batteries
Integrated bus bar is welded with string, the cell piece at wherein one or more battery strings two ends, wherein two in battery strings series
Or be connected between two or more adjacent cell string by busbar with integrated bus bar, and two cell pieces of the junction
Polarity it is identical.
6. the solar cell module as described in claim 1 or 5, it is characterised in that connected described in the battery strings series
The distance between two polarity identical cell pieces at place are 10 ~ 30mm.
7. solar cell module as claimed in claim 6, it is characterised in that the battery unit be two or two with
On, and the coupling of two or more battery units in parallel.
8. solar cell module as claimed in claim 7, it is characterised in that the battery unit include two or two with
On battery strings series, by busbar by two or more battery strings series connect, the junction of the busbar is located at
The corresponding position of polarity identical adjacent cell piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710391844.7A CN106960889A (en) | 2017-05-27 | 2017-05-27 | A kind of solar cell module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710391844.7A CN106960889A (en) | 2017-05-27 | 2017-05-27 | A kind of solar cell module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106960889A true CN106960889A (en) | 2017-07-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710391844.7A Pending CN106960889A (en) | 2017-05-27 | 2017-05-27 | A kind of solar cell module |
Country Status (1)
| Country | Link |
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| CN (1) | CN106960889A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108511549A (en) * | 2018-04-26 | 2018-09-07 | 苏州爱康光电科技有限公司 | A kind of checkers solar photovoltaic assembly |
| CN110047963A (en) * | 2019-04-19 | 2019-07-23 | 泰州隆基乐叶光伏科技有限公司 | Photovoltaic module circuit unit, photovoltaic module circuit and photovoltaic module |
| CN110459637A (en) * | 2019-09-18 | 2019-11-15 | 天合光能股份有限公司 | A kind of novel slice photovoltaic module |
| JP2020057652A (en) * | 2018-09-28 | 2020-04-09 | パナソニック株式会社 | Solar cell module, and manufacturing method of solar cell module |
| CN111697097A (en) * | 2020-07-15 | 2020-09-22 | 苏州腾晖光伏技术有限公司 | Solar cell module |
| CN112038428A (en) * | 2020-09-04 | 2020-12-04 | 浙江晶科能源有限公司 | Solar cell module |
| CN113345976A (en) * | 2021-07-29 | 2021-09-03 | 南京日托光伏新能源有限公司 | Multi-parallel circuit assembly based on back contact battery |
| CN114373833A (en) * | 2021-12-31 | 2022-04-19 | 沃沛斯(常州)能源科技有限公司 | Method for improving welding efficiency of multi-main-grid battery string bus bar |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108511549A (en) * | 2018-04-26 | 2018-09-07 | 苏州爱康光电科技有限公司 | A kind of checkers solar photovoltaic assembly |
| JP2020057652A (en) * | 2018-09-28 | 2020-04-09 | パナソニック株式会社 | Solar cell module, and manufacturing method of solar cell module |
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| WO2021051929A1 (en) * | 2019-09-18 | 2021-03-25 | 天合光能股份有限公司 | Sliced photovoltaic assembly |
| CN111697097A (en) * | 2020-07-15 | 2020-09-22 | 苏州腾晖光伏技术有限公司 | Solar cell module |
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| CN113345976A (en) * | 2021-07-29 | 2021-09-03 | 南京日托光伏新能源有限公司 | Multi-parallel circuit assembly based on back contact battery |
| CN114373833A (en) * | 2021-12-31 | 2022-04-19 | 沃沛斯(常州)能源科技有限公司 | Method for improving welding efficiency of multi-main-grid battery string bus bar |
| CN114373833B (en) * | 2021-12-31 | 2023-12-26 | 沃沛斯(常州)能源科技有限公司 | Method for improving welding efficiency of multi-main-grid battery string bus bar |
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| CB02 | Change of applicant information |
Address after: Solar photovoltaic industry park Tianhe Road 213031 north of Jiangsu Province, Changzhou City, No. 2 Applicant after: TRINA SOLAR Co.,Ltd. Address before: Solar photovoltaic industry park Tianhe Road 213031 north of Jiangsu Province, Changzhou City, No. 2 Applicant before: trina solar Ltd. Address after: Solar photovoltaic industry park Tianhe Road 213031 north of Jiangsu Province, Changzhou City, No. 2 Applicant after: trina solar Ltd. Address before: Solar photovoltaic industry park Tianhe Road 213031 north of Jiangsu Province, Changzhou City, No. 2 Applicant before: CHANGZHOU TRINA SOLAR ENERGY Co.,Ltd. |
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Application publication date: 20170718 |
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