CN104103706A - Novel photovoltaic module - Google Patents
Novel photovoltaic module Download PDFInfo
- Publication number
- CN104103706A CN104103706A CN201410304266.5A CN201410304266A CN104103706A CN 104103706 A CN104103706 A CN 104103706A CN 201410304266 A CN201410304266 A CN 201410304266A CN 104103706 A CN104103706 A CN 104103706A
- Authority
- CN
- China
- Prior art keywords
- battery pieces
- tinned copper
- tin
- coated copper
- cell piece
- 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
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 51
- 239000010949 copper Substances 0.000 claims abstract description 51
- 229910052802 copper Inorganic materials 0.000 claims abstract description 51
- 239000011521 glass Substances 0.000 claims abstract description 5
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 41
- 229910052710 silicon Inorganic materials 0.000 claims description 17
- 239000010703 silicon Substances 0.000 claims description 17
- 239000012528 membrane Substances 0.000 claims description 7
- 238000000605 extraction Methods 0.000 claims description 3
- 239000002313 adhesive film Substances 0.000 abstract description 3
- 238000005336 cracking Methods 0.000 abstract 1
- 229910021419 crystalline silicon Inorganic materials 0.000 abstract 1
- 239000004411 aluminium Substances 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 239000000741 silica gel Substances 0.000 description 2
- 229910002027 silica gel Inorganic materials 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000007789 sealing 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
- H01L31/042—PV modules or arrays of single PV cells
- H01L31/048—Encapsulation of modules
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
Landscapes
- 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)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Photovoltaic Devices (AREA)
Abstract
The invention relates to a novel photovoltaic module which comprises a photovoltaic glass cover plate, an adhesive film, crystalline silicon battery pieces connected in series by tinned copper tapes, an adhesive film and a back plate from the top down, and is laminated and packaged in a frame, and P-type battery pieces and N-type battery pieces are alternately arrayed. Series connection means that all the battery pieces on the front surfaces are sequentially connected pairwise by the tinned copper tapes, the head and tail battery pieces on the back surfaces lead out electrodes, the other battery pieces are sequentially connected pairwise by the tinned copper tapes, the front surfaces adopt the narrow and thick tinned copper tapes, and the back surfaces adopt the wide and thin tinned copper tapes. According to the novel photovoltaic module, the tinned copper tapes are not required to be led out of the back surfaces of the battery pieces to the front surfaces of the adjacent battery pieces, so that the pressure of the edges of the battery pieces is reduced, a hidden danger of subfissure cracking due to excessive stress of the edges of the battery pieces caused by the tinned copper tapes is eliminated, the reliability of the module is improved, the resistance of the tinned copper tapes is reduced under the condition that a shading area and the whole thickness of the tinned copper tapes are not affected, and the whole output power is improved.
Description
Technical field
The invention belongs to application of solar, particularly relate to a kind of novel photovoltaic module.
Background technology
Utilize photovoltaic effect by light energy conversion for electric energy is the basic principle of solar cell, through the solar cell of series connection, by cover plate, backboard and glued membrane, protected, finally adopt aluminium frame encapsulation and silica gel sealing to form large area photovoltaic module.Existing crystal silicon photovoltaic assembly adopts photovoltaic glass as cover plate substantially, TPT, TPE and AAA are as back veneer material, EVA is as packaging adhesive film, utilize laminating machine laminating moulding, obtain from top to bottom as the typical crystal silicon photovoltaic assembly of photovoltaic glass-EVA-cell piece-EVA-back board structure, then adopt aluminium frame to its moulding that frames up, finally in aluminium frame surrounding, adopt silica gel to seal.
According to the photovoltaic module of above-mentioned operation assembled formation, generally adopt the crystal-silicon battery slice of same type, crystal silicon battery is together in series by tin-coated copper strip two cell pieces that are connected.Due to what use, be the cell piece of same type, its battery electrode is towards unanimously, thereby need to be connected to from the back side of a slice cell piece the front of the cell piece that is connected.Tin-coated copper strip can form a difference in height between two cell pieces that are connected like this, can cause cell piece edge stressed excessive and then form hidden splitting or even sliver.
The resistance of tin-coated copper strip is one of key factor affecting photovoltaic module power in addition, and the resistance of tin-coated copper strip and its cross-sectional area are inversely proportional to.For not affecting battery front side shading, generally take to keep tin-coated copper strip width constant, the thickness by promoting tin-coated copper strip is to reduce its resistance.But the blocked up meeting of the thickness of tin-coated copper strip causes losing efficacy (for example temperature cycles) in photovoltaic module reliability testing, affects the long-term reliability of assembly.
Summary of the invention
The present invention is directed to above-mentioned the deficiencies in the prior art, a kind of novel photovoltaic module has been proposed, both eliminate tin-coated copper strip and caused the stressed excessive hidden danger that causes hidden sliver in cell piece edge, also can in Assurance component reliability, by promoting the cross-sectional area of tin-coated copper strip, reduce string resistance, promote whole power output.
The technical scheme that technical solution problem of the present invention is taked is, a kind of novel photovoltaic module, from top to bottom by photovoltaic glass cover plate, glued membrane, the crystal-silicon battery slice being connected in series by tin-coated copper strip, glued membrane with backboard forms and through laminated into type and be packaged in frame, it is characterized in that, described crystal-silicon battery slice is two kinds of dissimilar crystal-silicon battery slices, i.e. P type cell piece and N-type cell piece.
Concrete structure is, described P type cell piece and N-type cell piece alternative arrangement.
Described crystal-silicon battery slice is connected in series and is referred to that positive all cell pieces are connected between two by tin-coated copper strip successively by tin-coated copper strip, back side head and afterbody cell piece extraction electrode, and other cell piece is connected between two by tin-coated copper strip successively.
Being connected in series of described crystal-silicon battery slice, positive narrow and thick tin-coated copper strip, the wide and thin tin-coated copper strip of back side employing of adopting.
In the present invention, adopting two kinds of dissimilar crystal-silicon battery slices is P type cell piece and N-type cell piece alternative arrangement, and so-called alternative arrangement alternately namely.In four orientation all around of each cell piece, are all dissimilar cell pieces.Because adjacent two cell pieces are dissimilar cell pieces, its same towards battery polar be contrary, therefore can be same as lower series connection at cell piece, without be incorporated into the front of adjacent cell sheet from the cell piece back side.Thereby reduced the hidden danger of component failures in production process.Also because the tin-coated copper strip in cell piece front in the present invention and the tin-coated copper strip at the back side are separate, thereby both can use same tin-coated copper strip, also can use different tin-coated copper strips.
Owing to using two kinds of different tin-coated copper strips at cell piece front and back, tin-coated copper strip for cell piece front, use narrow and thick tin-coated copper strip, for the tin-coated copper strip at the cell piece back side, use wide and thin tin-coated copper strip, by the collocation of two kinds of tin-coated copper strips, use, neither affect the shading in cell piece front, do not promote the integral thickness of tin-coated copper strip, but can reduce the resistance of tin-coated copper strip, thereby promote power output and guaranteed reliability yet.
Marked improvement of the present invention is, without tin-coated copper strip is drawn out to adjacent cell sheet front from the cell piece back side, reduces the pressure at cell piece edge, eliminates tin-coated copper strip and causes the stressed excessive hidden danger that causes hidden sliver in cell piece edge, lifting subassembly reliability; Reduce tin-coated copper strip resistance not affecting in shading-area and tin-coated copper strip integral thickness situation, promote whole power output.
Accompanying drawing explanation
Fig. 1 is that a kind of embodiment cell piece of the present invention is arranged front schematic view.
Fig. 2 is the positive polarity schematic diagram of a kind of embodiment cell piece of the present invention shown in Fig. 1.
Fig. 3 is a kind of embodiment front view of the present invention shown in Fig. 1.
Fig. 4 is a kind of embodiment rear view of the present invention shown in Fig. 1.
Fig. 5 is A place partial enlarged drawing in Fig. 3.
Fig. 6 is B place partial enlarged drawing in Fig. 4.
In figure, P represents P type cell piece, and N represents N-type cell piece; + represent that cell piece is anodal ,-expression cell piece negative pole.
Embodiment
A photovoltaic module, is comprised of photovoltaic glass cover plate, EVA glued membrane, the crystal-silicon battery slice being connected in series by tin-coated copper strip, EVA glued membrane and TPT backboard and from top to bottom through laminated into type and be packaged in aluminium frame.Totally 60 of crystal-silicon battery slices, wherein P type cell piece is 30,30 of N-type cell pieces.P type cell piece and N-type cell piece alternative arrangement, as shown in Figure 1; The positive polarity of cell piece as shown in Figure 2.In front, all cell pieces are connected between two by tin-coated copper strip successively, as shown in Figure 3 and Figure 5; Overleaf, head and afterbody cell piece extraction electrode, other cell piece is connected between two by tin-coated copper strip successively, as shown in Figure 4 and Figure 6.And, positive narrow and thick tin-coated copper strip, the wide and thin tin-coated copper strip of back side employing of adopting.
Claims (4)
1. a novel photovoltaic module, from top to bottom by photovoltaic glass cover plate, glued membrane, the crystal-silicon battery slice being connected in series by tin-coated copper strip, glued membrane with backboard forms and through laminated into type and be packaged in frame, it is characterized in that, described crystal-silicon battery slice is two kinds of dissimilar crystal-silicon battery slices, i.e. P type cell piece and N-type cell piece.
2. novel photovoltaic module according to claim 1, is characterized in that, described P type cell piece and N-type cell piece alternative arrangement.
3. novel photovoltaic module according to claim 1 and 2, it is characterized in that, described crystal-silicon battery slice is connected in series and is referred to that positive all cell pieces are connected between two by tin-coated copper strip successively by tin-coated copper strip, back side head and afterbody cell piece extraction electrode, other cell piece is connected between two by tin-coated copper strip successively.
4. novel photovoltaic module according to claim 3, is characterized in that, being connected in series of described crystal-silicon battery slice positively adopts narrow and thick tin-coated copper strip, and the back side adopts wide and thin tin-coated copper strip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410304266.5A CN104103706A (en) | 2014-06-30 | 2014-06-30 | Novel photovoltaic module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410304266.5A CN104103706A (en) | 2014-06-30 | 2014-06-30 | Novel photovoltaic module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104103706A true CN104103706A (en) | 2014-10-15 |
Family
ID=51671685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410304266.5A Pending CN104103706A (en) | 2014-06-30 | 2014-06-30 | Novel photovoltaic module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104103706A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104465892A (en) * | 2014-12-31 | 2015-03-25 | 中国科学院上海微系统与信息技术研究所 | Method for manufacturing photovoltaic modules interconnected on same sides of adjacent solar cells in solar cell string |
| CN104701415A (en) * | 2015-02-13 | 2015-06-10 | 晶澳（扬州）太阳能科技有限公司 | Manufacture method for solar cell module via solar cells different in structure |
| CN110767761A (en) * | 2018-07-27 | 2020-02-07 | 上海理想万里晖薄膜设备有限公司 | Photovoltaic module |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101714582A (en) * | 2008-10-01 | 2010-05-26 | 国际商业机器公司 | Optical tandem photovoltaic cell panels |
| CN102148275A (en) * | 2011-03-16 | 2011-08-10 | 常州天合光能有限公司 | Solar battery component |
| CN202487597U (en) * | 2011-12-31 | 2012-10-10 | 巨力新能源股份有限公司 | Silicon-based solar energy cell string and photovoltaic assembly formed by packaging the cell string |
| CN202549888U (en) * | 2012-02-03 | 2012-11-21 | 山东力诺太阳能电力股份有限公司 | Novel solar cell |
-
2014
- 2014-06-30 CN CN201410304266.5A patent/CN104103706A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101714582A (en) * | 2008-10-01 | 2010-05-26 | 国际商业机器公司 | Optical tandem photovoltaic cell panels |
| CN102148275A (en) * | 2011-03-16 | 2011-08-10 | 常州天合光能有限公司 | Solar battery component |
| CN202487597U (en) * | 2011-12-31 | 2012-10-10 | 巨力新能源股份有限公司 | Silicon-based solar energy cell string and photovoltaic assembly formed by packaging the cell string |
| CN202549888U (en) * | 2012-02-03 | 2012-11-21 | 山东力诺太阳能电力股份有限公司 | Novel solar cell |
Non-Patent Citations (1)
| Title |
|---|
| 李钟实: "《太阳能光伏发电系统设计施工与应用》", 31 October 2012, article ""电池组件的制造"", pages: 30-38 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104465892A (en) * | 2014-12-31 | 2015-03-25 | 中国科学院上海微系统与信息技术研究所 | Method for manufacturing photovoltaic modules interconnected on same sides of adjacent solar cells in solar cell string |
| CN104701415A (en) * | 2015-02-13 | 2015-06-10 | 晶澳（扬州）太阳能科技有限公司 | Manufacture method for solar cell module via solar cells different in structure |
| CN110767761A (en) * | 2018-07-27 | 2020-02-07 | 上海理想万里晖薄膜设备有限公司 | Photovoltaic module |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141015 |