CN103367508B - A kind of solar module - Google Patents
A kind of solar module Download PDFInfo
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- CN103367508B CN103367508B CN201210086063.4A CN201210086063A CN103367508B CN 103367508 B CN103367508 B CN 103367508B CN 201210086063 A CN201210086063 A CN 201210086063A CN 103367508 B CN103367508 B CN 103367508B
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- 230000005611 electricity Effects 0.000 claims abstract description 31
- 238000003466 welding Methods 0.000 claims description 66
- 230000000977 initiatory effect Effects 0.000 claims description 29
- 229920001940 conductive polymer Polymers 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 2
- 229920002521 macromolecule Polymers 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 13
- 238000006243 chemical reaction Methods 0.000 abstract description 4
- 238000011161 development Methods 0.000 abstract description 2
- 230000000052 comparative effect Effects 0.000 description 9
- 238000013461 design Methods 0.000 description 5
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- 230000011218 segmentation Effects 0.000 description 4
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- 239000011230 binding agent Substances 0.000 description 2
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- 239000011521 glass Substances 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 238000005476 soldering Methods 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- NIPNSKYNPDTRPC-UHFFFAOYSA-N N-[2-oxo-2-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)ethyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 NIPNSKYNPDTRPC-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 238000003854 Surface Print Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
- H01L31/042—PV modules or arrays of single PV cells
- H01L31/05—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells
- H01L31/0504—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells specially adapted for series or parallel connection of solar cells in a module
- H01L31/0508—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells specially adapted for series or parallel connection of solar cells in a module the interconnection means having a particular shape
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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- Life Sciences & Earth Sciences (AREA)
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- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Photovoltaic Devices (AREA)
Abstract
It is an object of the invention to provide a kind of solar module and include some solar battery sheets and conductive strips, between solar battery sheet, and/or, it is electrically connected through between solar battery sheet and load；Solar battery sheet includes sensitive surface electrode and shady face electrode, the sensitive surface electrode of a solar battery sheet connects conductive strips, shady face electrode connects another conductive strips；Conductive strips are the first conductive strips connecting portion with the conductive strap portion of sensitive surface electrode connection, and conductive strips are the second conductive strips connecting portion with the conductive strap portion of shady face electrode connection；The widest part width of the first conductive strips connecting portion is less than second conductive strips connecting portion the widest part width.Internal resistance is obviously reduced, and reduces the power of own loss, and output significantly increases, simultaneously because the light rate of sensitive surface increases the electricity conversion that can also carry cell piece.The solar module of the present invention is applied to the solar power station that a large amount of solar module assembles, the output of whole solar power station will be greatly improved, and the method for the present invention is simple, easily realizes, and low cost, the development for industry is laid a good foundation.
Description
Technical field
The present invention relates to solar module field.
Background technology
Individually crystal silicon solar cell sheet generated energy is little and the most frangible, it has not been convenient to actually used, to be connected by multiple cell pieces and be packaged into assembly in actual application.Such as, multiple cell pieces are connected into set of cells, again multiple set of cells are arranged in neat array, it is connected in series between each cell piece of same row, each row's cell piece is connected in parallel, being welded to connect with the back electrode of one end of thin welding with a upper cell piece when being connected in series, the other end is welded to connect with the front electrode of next cell piece.
The welding that existing solaode module uses width the most wide with gate electrode line or more slightly wider than gate electrode line general width consistent connects sensitive surface electrode and the shady face electrode of adjacent cell sheet.The most homogeneous rectangle welding.Under conditions of thickness is certain, the width of welding decides the internal resistance of welding.Solaode module is when normally working, in every solar battery sheet sensitive surface main gate line, electric current is uneven, employ wide welding, its electric current density is the most uneven, the region that then electric current density is little results in the waste of welding width, then waste certain light-receiving area, cause solaode module to have bigger internal resistance and relatively low power.
Summary of the invention
For solving the problem that internal resistance is big and power is low of existing solar module, the invention provides a kind of light-receiving area that can improve solar battery sheet sensitive surface, decrease the internal resistance of solar module, improve the solar module of solar module power.
It is an object of the invention to provide a kind of solar module and include some solar battery sheets and conductive strips, between solar battery sheet and/or solar battery sheet is electrically connected through with load；Solar battery sheet includes sensitive surface electrode and shady face electrode, the sensitive surface electrode of a solar battery sheet connects conductive strips, shady face electrode connects another conductive strips；Conductive strips are the first conductive strips connecting portion with the conductive strap portion of sensitive surface electrode connection, and conductive strips are the second conductive strips connecting portion with the conductive strap portion of shady face electrode connection；The width of the widest part of the first conductive strips connecting portion is a, and the width of the widest part of described second conductive strips connecting portion is b, wherein a ＜ b.The width of the i.e. first conductive strips connecting portion and the width of the second conductive strips connecting portion are inconsistent.
Preferably, the ratio of the widest part width of the widest part width of the first conductive strips connecting portion and the second conductive strips connecting portion is 0.5≤a/b ＜ 1.
Preferably, the difference of the widest part width of the widest part width of the first conductive strips connecting portion and the second conductive strips connecting portion is 0 ＜ b-a≤3mm.
The width of solar battery sheet is d, it is preferable that the width of the widest part of the first conductive strips connecting portion is 0.6%d≤a≤2%d；The width of the widest part of the second conductive strips connecting portion is 0.6% d ＜ b≤4% d.
Preferably, the width of the widest part of the first conductive strips connecting portion is 1 mm≤a≤3mm；The width of the widest part of the second conductive strips connecting portion is 1 mm ＜ b≤6mm.
Further preferably including three sensitive surface electrodes when a solar battery sheet, each sensitive surface electrode connects conductive strips, the width of the widest part of described first conductive strips connecting portion is 1.5 mm≤a≤2.5mm；One solar battery sheet includes three shady face electrodes, and each shady face electrode connects conductive strips, and the width of the widest part of described second conductive strips connecting portion is 1.5 mm ＜ b≤5mm.
Further preferably including two sensitive surface electrodes when a solar battery sheet, each sensitive surface electrode connects conductive strips, the width of the widest part of described first conductive strips connecting portion is 2.0 mm≤a≤2.5mm；One solar battery sheet includes two shady face electrodes, and each shady face electrode connects conductive strips, and the width of the widest part of described second conductive strips connecting portion is 2.0 mm ＜ b≤5mm.
Preferably, the ratio of the area of the first conductive strips connecting portion and the area of the second conductive strips connecting portion is c, wherein, and 0.25≤c ＜ 1.
Solar battery sheet can be a piece of can also be for multi-disc, preferably, solar battery sheet includes that at least two, the sensitive surface electrode of a solar battery sheet of adjacent two solar battery sheets are electrically connected through with the shady face electrode of another solar battery sheet；Second conductive strips connecting portion of the first conductive strips connecting portion of one solar battery sheet and another solar battery sheet extends the conductive strips forming described electrical connection.
Preferably, at least part of width of the first conductive strips connecting portion is along with the size gradual change of electric current density.I.e. first conductive strips connecting portion is originally as non-wide structure.
Preferably, the width of the first conductive strips connecting portion is along with the size gradual change of electric current density, i.e. major part width is along with the size gradual change of electric current density.
Preferably, the width of the first conductive strips connecting portion increases along with electric current density and widens, and reduces along with electric current density and narrows.
It is the first conductive strips connecting portion end that first conductive strips connecting portion need to extend the one end of the shady face electrode connecting load or extending connection adjacent solar battery sheet, the other end of the first conductive strips connecting portion is the initiating terminal of the first conductive strips connecting portion, preferably, the initiating terminal width of the first conductive strips connecting portion is less than the first conductive strips connecting portion terminal end width.Electric current density is to be gradually increased to conductive strips end by conductive strips initiating terminal, conductive strips width is gradually widened along electric current collection direction, the part that width is little i.e. saves the shading-area of a part, to a certain degree increases the light-receiving area of cell piece, and does not increases the resistance burden of cell piece.
Further preferably, the initiating terminal of the first conductive strips connecting portion is gradually broadened by narrow to the first conductive strips connecting portion terminal end width.Electric current density is that consecutive variations continues to increase, then the width of conductive strips is the most gradually broadened by narrow.
Preferably, the 0-1.3% that width is solar battery sheet width at the narrowest place of the first conductive strips connecting portion.
Preferably, the width at the narrowest place of described first conductive strips connecting portion is 0-2mm.
Preferably, the first conductive strips connecting portion center line symmetrically structure along its length, i.e. the uniform extracted current in center line both sides.The most more convenient, it is not necessary to select placement direction when placing welding.
Preferably, the first conductive strips connecting portion be shaped as triangle.In actual applications, triangle welding is more easy to realize, and processes more convenient.
Further preferably, the first conductive strips connecting portion be shaped as isosceles triangle, uniform extracted current.The most more convenient, it is not necessary to select placement direction when placing welding.
Or further preferably, the first conductive strips connecting portion be shaped as right angled triangle, easy to process, be more easy to realize.
Or preferably, being shaped as of the first conductive strips connecting portion is trapezoidal.Trapezoidal top margin has one fixed width, adds man-hour at welding more convenient, can avoid the appearance of the situations such as initial weld position weld strength is inadequate.
Further preferably, the first conductive strips connecting portion be shaped as isosceles trapezoid, uniform extracted current.The most more convenient, it is not necessary to select placement direction when placing welding.
The shape of the second conductive strips connecting portion does not limit, and such as, the width of the second conductive strips connecting portion can be the most consistent.
Further preferably, the second conductive strips connecting portion be shaped as rectangle.Electric current collection is the connection of the first conductive strips connecting portion and cell piece, second conductive strips connecting portion predominantly carries, with the connection of cell piece, the electric current collected, second conductive strips connect the curent change in band can be less obvious, simply the second conductive strips can be designed as rectangle.
Or preferably, at least part of width of the second conductive strips connecting portion is along with the size gradual change of electric current density.Second conductive strips connect band in electric current also have certain change, it may be more preferable to the shape that the second conductive strips connecting portion is designed to size gradual change.The width of further preferred second conductive strips connecting portion is along with the size gradual change of electric current density, i.e. major part width is along with the size gradual change of electric current density.
Further preferably, the width of the second conductive strips connecting portion increases along with electric current density and widens, and reduces along with electric current density and narrows.Welding width changes with size of current, different size of electric current in equilibrium welding.
It is the second conductive strips connecting portion end that second conductive strips connecting portion need to extend the one end of the sensitive surface electrode connecting load or extending connection adjacent solar battery sheet, the other end of the second conductive strips connecting portion is the initiating terminal of the second conductive strips connecting portion, preferably, the initiating terminal width of the second conductive strips connecting portion is less than the second conductive strips connecting portion terminal end width.
Further preferably, the initiating terminal of the second conductive strips connecting portion is gradually broadened by narrow to the second conductive strips connecting portion terminal end width.Now can be preferred, the 0-1.3% that width is solar battery sheet width at the narrowest place of the second conductive strips connecting portion.
Preferably, the width at the narrowest place of the second conductive strips connecting portion is 0-3mm.
Preferably, the second conductive strips connecting portion center line symmetrically structure along its length.
Preferably, the second conductive strips connecting portion be shaped as triangle.
Further preferably, the second conductive strips connecting portion be shaped as isosceles triangle.
Or further preferably, the second conductive strips connecting portion be shaped as right angled triangle.
Or preferably, being shaped as of the second conductive strips connecting portion is trapezoidal.
Further preferably, the second conductive strips connecting portion be shaped as isosceles trapezoid.
Further preferably, the first conductive strips connecting portion is isosceles triangle, and the second conductive strips connecting portion is rectangle, and wherein, the bottom side length of isosceles triangle is 0.6-0.85 with the wide ratio of rectangle.
Further preferably, the bottom side length of isosceles triangle is than the wide little 0.5 mm-1.5mm of rectangle.
Preferably, the length of the first conductive strips connecting portion accounts for the 80%-100% of length of sensitive surface electrode；Can be isometric with the length of sensitive surface electrode, it is also possible at initiating terminal, sensitive surface electrode being reserved certain length and start to connect conductive strips, sensitive surface electrode length is designed according to the length of cell piece, somewhat the shortest than cell piece length.
The length of the second conductive strips connecting portion accounts for the 50%-100% of shady face electrode length.Can be isometric with the length of shady face electrode, at initiating terminal, shady face electrode can also be reserved certain length to start to connect conductive strips, can be shorter than the length of the first conductive strips connecting portion, design according to cell piece is different and different, such as can use the second conductive strips connecting portion is 8 segmentations, coordinate 8 segmentations of backplate, it is also possible to be the conductive strips of whole.
Preferably, conductive strips are welding, and the connection of described welding and sensitive surface electrode is for welding；The connection of described welding and shady face electrode is for welding.
Preferably, conductive strips are conductive polymer band, and the connection of described conductive polymer band and sensitive surface electrode is for pasting；The connection of described conductive polymer band and shady face electrode is for pasting.
The present invention uses and does not waits wide welding band can make full use of the light-receiving area of sensitive surface, improves the electricity conversion of battery, ensures the internal resistance of conductive strips simultaneously, make full use of CURRENT DISTRIBUTION simultaneously, improves the power of solar components further.And have employed the welding of width matched with electric current distribution, it is considered to the distribution of cell piece electric current density, can the wide welding band internal resistance such as solution compared with problem big, that output is relatively low.According to sensitive surface main gate line CURRENT DISTRIBUTION, at the welding that the local use that electric current density is big is wider, reduce internal resistance, reduce the power of own loss, at the welding that the local use that electric current density density is little is narrower, increase light-receiving area, increase the power that reality produces, utilizing the non-output waiting wide welding band to improve solar module on the whole, the present invention can be by way simple realization such as automatic press, and easy business is applied.
Accompanying drawing explanation
Fig. 1 is the sensitive surface structural representation of the cell piece of the present invention.
Fig. 2 is the shady face structural representation of the cell piece of the present invention.
Fig. 3 is the structural representation of the conductive strips of the embodiment of the present invention 1.
Fig. 4 is the structural representation of the sensitive surface welding welding of a piece of solar battery sheet of the embodiment of the present invention 1.
Fig. 5 is the structural representation of the shady face welding welding of another adjacent sheet solar battery sheet of the embodiment of the present invention 1.
Fig. 6 is the structural representation of two adjacent solar battery sheets of the embodiment of the present invention 1.
Fig. 7 is the structural representation of the conductive strips of the embodiment of the present invention 3.
Fig. 8 is the structural representation of the sensitive surface welding welding of a piece of solar battery sheet of the embodiment of the present invention 3.
Fig. 9 is the structural representation of the conductive strips of the embodiment of the present invention 4.
Figure 10 is the structural representation of the sensitive surface welding welding of a piece of solar battery sheet of the embodiment of the present invention 4.
Figure 11 is the structural representation of the conductive strips of the embodiment of the present invention 4.
The structural representation of the sensitive surface welding welding of a piece of solar battery sheet of Figure 12 embodiment of the present invention 5.
The structural representation of the shady face welding welding of another adjacent sheet solar battery sheet of Figure 13 embodiment of the present invention 5.
Figure 14 is the structural representation of the conductive strips of comparative example 1 of the present invention.
Figure 15 is the structural representation of the conductive strips of comparative example 3 of the present invention.
Detailed description of the invention
In order to make the technical problem to be solved, technical scheme and beneficial effect clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
Embodiment 1
This example describes solar module in detail.
Sensitive surface electrode refers to accept the electric current extraction electrode of the one side of solar energy, generally negative pole, such as accompanying drawing 1, sensitive surface electrode is typically realized by the sensitive surface electrode main grid line 2 printing several extracted currents at the sensitive surface of solar battery sheet 1, such as two or three sensitive surface electrode main grid line 2 realizes, sensitive surface electrode main grid line 2 is typically made by coating conductive silver slurry sintering, electric current can be collected in extraction in this sensitive surface electrode main grid line 2 by a plurality of tiny secondary grid line 3 that is connected with this sensitive surface electrode main grid line 2 by the electric current that solar battery sheet front produces.
Shady face electrode is coated with carrying on the back the electric current extraction electrode of the one side of electric field, generally positive pole, such as accompanying drawing 2, shady face electrode typically realizes by printing the shady face gate electrode line 4 of several extracted currents on the back of the body electric field of solar battery sheet 1, the general sensitive surface electrode main grid line 2 with sensitive surface printing in the position of shady face gate electrode line 4 is correspondingly arranged, shady face gate electrode line 4 is typically made by coating silver aluminum conductive electric slurry sintering, electric current on back of the body electric field is drawn, can be that whole segmentation can also be for stagewise.
If solar battery sheet 1 is a piece of, then need to connect conductive strips 5 respectively in the sensitive surface electrode main grid line 2 of sensitive surface electrode and shady face gate electrode line 4, the electric current on this solar battery sheet 1 is drawn by conductive strips 5, then electrically connect with load after connecting the structures such as rosette by conductive strips 5, power supply.As solar battery sheet 1 be at least two panels time, connected by conductive strips 5 between the most adjacent two panels, i.e. one conductive strips 5 connect the sensitive surface electrode of a solar battery sheet and the shady face electrode of another solar battery sheet, and outermost solar battery sheet 1 electrically connects with load after connecting the structures such as rosette by conductive strips 5.
Conductive strips 5 are the first conductive strips connecting portion 51 with the conductive strap portion of sensitive surface electrode connection, general conductive strips 5 and the connection of sensitive surface electrode, conductive strips 5 are used to cover in whole or in part in sensitive surface electrode main grid line 2, extracted current is uniform, not hiding the light-receiving area of solar battery sheet, this covers overlapping part and is the first conductive strips connecting portion 51.Conductive strips 5 are the second conductive strips connecting portion 52 with the conductive strap portion of shady face electrode connection, general conductive strips 5 and the connection of shady face electrode, conductive strips are used to cover in whole or in part on shady face gate electrode line 4, extracted current is uniform, and this covers overlapping part and is the second conductive strips connecting portion 52.The widest part width being improved by the first conductive strips connecting portion 51 of the present invention is less than second conductive strips connecting portion 52 the widest part width, increase the light-receiving area of solar battery sheet, ensure that the internal resistance of conductive strips is unaffected simultaneously, when solar battery sheet 1 is a piece of, further preferably one end the widest part width connecting load of the conductive strips 5 of connection load is more than the widest part width of the first conductive strips connecting portion 51 of its connection sensitive surface electrode main grid line 2, width at this point for the one end connecting load of the conductive strips 5 connecting shady face gate electrode line 4 does not limit, can be equal with second conductive strips connecting portion 52 the widest part width, can not also wait.When solar battery sheet 1 is at least two panels, connected by conductive strips 5 between the most adjacent two panels, one conductive strips 5 connects the sensitive surface electrode of a solar battery sheet and the shady face electrode of another solar battery sheet, the the first conductive strips connecting portion 51 of sensitive surface electrode i.e. connecting a solar battery sheet connects the conductive strips 5 of this adjacent two panels solar battery sheet with the second conductive strips connecting portion 52 composition of the shady face electrode connecting another solar battery sheet, it is typically based on the distance of the adjacent two panels solar battery sheet of connection, a little distance also may can be there is between its first conductive strips connecting portion 51 and second conductive strips connecting portion 52, i.e. there is transition part 53, shape and the width present invention of transition part do not limit, it is designed with technique according to actual needs.The conductive strips 5 that general first conductive strips connecting portion the 51, second conductive strips connecting portion 52 and transition part 53 are integrated.
For improving further the electric current transmission performance of cell back bright finish, preferably in the case of, the ratio of the widest part width of the first conductive strips connecting portion 51 and the widest part width of the second conductive strips connecting portion 52 is 1-0.5.When for conventional solar battery sheet and conventional gate electrode line, it is preferable that the little 0-2.5mm of the widest part width of the widest part width ratio the second conductive strips connecting portion 52 of the first conductive strips connecting portion 51.Preferably, the 0.6%-2% that width is solar battery sheet width of the widest part of the first conductive strips connecting portion；The 0.6%-4% that width is solar battery sheet width of the widest part of described second conductive strips connecting portion.When for conventional solar battery sheet and conventional gate electrode line, it is preferable that the width of the widest part of the first conductive strips connecting portion is 1-3mm；The width of the widest part of the second conductive strips connecting portion is 1-6mm.Can be further preferably, when a solar battery sheet includes three sensitive surface electrodes, each sensitive surface electrode to connect conductive strips, the width of the widest part of described first conductive strips connecting portion be 1.5-2.5mm；One solar battery sheet includes three shady face electrodes, and each shady face electrode connects conductive strips, and the width of the widest part of described second conductive strips connecting portion is 1.5-5mm.When a solar battery sheet includes two sensitive surface electrodes, each sensitive surface electrode connecting conductive strips, the width of the widest part of described first conductive strips connecting portion is 2.0-2.5mm；One solar battery sheet includes two shady face electrodes, and each shady face electrode connects conductive strips, and the width of the widest part of described second conductive strips connecting portion is 2.0-5mm.The various conductive strips that the material of conductive strips 5 can be known to the skilled person, such as metal tape i.e. welding, it can be copper strips, now conductive strips 5 can use with the connection of sensitive surface electrode or shady face electrode and weld, conductive double-sided tape can also be used to cohere, the mode of soldering during welding, can be used to connect.Can also be high molecular conductive tape, directly paste on sensitive surface electrode main grid line 2 or the surface of shady face gate electrode line 4.The present embodiment specifically uses welding, uses the mode of soldering.
Shape to the first conductive strips connecting portion 51, the present invention is not particularly limited, and can be able to be such as rectangle according to conventional conductive strips 5 shape.The present invention is improved to the width size gradual change along with electric current density of the first conductive strips connecting portion 51 further, when conductive strips 5 draw solar battery sheet 1 sensitive surface electrode current, in sensitive surface electrode main grid line 2, electric current is uneven, on conductive strips 5, the electric current density of carrying is different, the width of the first conductive strips connecting portion 51 is used can preferably to derive solar battery sheet 1 sensitive surface electrode current along with the conductive strips 5 of the size gradual change of electric current density, and more effectively utilize the light efficiency of solaode, improve the electricity conversion of solaode.The width of general first conductive strips connecting portion 51 increases along with electric current density and widens, reduce along with electric current density and narrow, at the welding that the local use that electric current density is big is wider, reduce internal resistance, reduce the power of own loss, at the welding that the local use that electric current density density is little is narrower, increase light-receiving area, increase the power that reality produces.As shown in Figure 3, as conductive strips 5 include the first conductive strips connecting portion 51 of connecting the sensitive surface electrode of a solar battery sheet, the one end that need to extend the shady face electrode connecting load or extending connection adjacent solar battery sheet is the first conductive strips connecting portion end 512, the other end of the first conductive strips connecting portion 51 is the initiating terminal 511 of the first conductive strips connecting portion 51, initiating terminal 511 width of general first conductive strips connecting portion 51 is less than the first conductive strips connecting portion end 512 width, extraction along with electric current, the flow direction of electric current, electronics is assembled, electric field density strengthens, electric current density strengthens, conductive strips gradually broaden.The gathering of general electronics, electric current density the most uniformly strengthens, and initiating terminal the 511 to the first conductive strips connecting portion end 512 width of the first conductive strips connecting portion 51 is gradually broadened by narrow.It is typically based on the size of battery and the size of the size design conductive strips 5 of sensitive surface electrode main grid line 2 and the size of the first conductive strips connecting portion 51, it is preferable that a length of sensitive surface electrode 80%-100% of the first conductive strips connecting portion 51；Can be isometric with the length of sensitive surface electrode, at sensitive surface electrode initiating terminal, sensitive surface electrode can also be reserved certain length to start to connect conductive strips, the present embodiment specifically uses a length of 156mm of cell piece, the a length of 153mm of the sensitive surface electrode main grid line 2 of printing, design a length of 153mm of the first conductive strips connecting portion 51, i.e. start to print sensitive surface electrode main grid line 2 at cell piece isolated edge 1.5mm, i.e. start to weld conductive strips 5 at sensitive surface electrode main grid line 2 initiating terminal, the length of the most whole sensitive surface electrode main grid line 2 is all covered with conductive strips 5.
Preferably, the first conductive strips connecting portion 51 center line symmetrically structure along its length, i.e. the uniform extracted current in center line both sides.General first conductive strips connecting portion 51 is along the center line symmetrically structure of the length direction of sensitive surface electrode main grid line 2, it is ensured that uniform current density, reduces internal resistance further.Preferably, the first conductive strips connecting portion 51 be shaped as triangle, triangle welding be more easy to realize, process more convenient.The present embodiment specifically by the first conductive strips connecting portion 51 be shaped as isosceles triangle such as accompanying drawing 4 as a example by be described in detail.The present embodiment is as a example by the battery of 156mm × 156mm × 200 μm, and the width of its sensitive surface electrode main grid line 2 is 1.5mm, a length of 153mm.Select a length of 2.5mm in the width i.e. base of isosceles triangle of the widest part of isosceles triangle the first conductive strips connecting portion 51, a height of 153mm of the i.e. isosceles triangle of length of the first conductive strips connecting portion 51, the initiating terminal 511 of the first conductive strips connecting portion 51 is that sensitive surface electrode main grid line 2 original position from solaode starts to cover.
Shape to the second conductive strips connecting portion 52, the present invention is not particularly limited, can be according to conventional conductive strips 5 shape, and the width of the such as second conductive strips connecting portion 52 is the most consistent.The present embodiment specifically by the second conductive strips connecting portion 52 be shaped as rectangle such as accompanying drawing 5 as a example by be described in detail.The present embodiment is as a example by the battery of 156mm × 156mm × 200 μm, the width of its shady face gate electrode line 4 is 1.8mm, a length of 136mm, i.e. start to print shady face gate electrode line 4 from cell piece edge, 8 sections of printings can be divided into, the width designing this rectangle the second conductive strips connecting portion 52 is 3mm, a length of 136mm, i.e. start to weld conductive strips 5 at shady face gate electrode line 4 initiating terminal, being all covered with conductive strips 5 in the length of the most whole shady face gate electrode line 4, the second conductive strips connecting portion 52 can be designed to one whole conductive strips welding.
Multiple solar battery sheets are sequentially connected in series, and Fig. 4 is the front schematic view of a solar battery sheet；Fig. 5 is the schematic rear view of another solar battery sheet adjacent；As shown in Figure 4, three sensitive surface electrode main grid line 2 are had as sensitive surface electrode i.e. negative pole in solar battery sheet front face surface, these three sensitive surface electrode main grid line 2 are welded with conductive strips 5 as shown in Figure 3, the triangle of conductive strips 5 covers in this sensitive surface electrode main grid line 2, and summit can fall at the sensitive surface electrode main grid line 2 center away from solar battery sheet edge 1.5mm.As shown in Figure 5, three shady face gate electrode lines 4 are had as backplate i.e. positive pole on surface, solar cell back face, these three shady face gate electrode lines 4 are welded with conductive strips 5 as shown in Figure 3, the rectangle of conductive strips 5 covers on this shady face gate electrode line 4, is terminating away from solar battery sheet edge 10mm.
As shown in Figure 6, as a example by being connected in series of two solar battery sheets, define two adjacent solaodes and be called the first solaode 11 and the second solaode 12, when being connected in series, first the triangle of welding is welded on sensitive surface electrode, so, a welding has all been welded on each solar battery sheet, after welding welding on such as the first solar battery sheet 11 in Fig. 6, second half of this welding is that rectangle is welded in the backplate of the second solaode 12 again, then with this repetitive operation, by each solar battery sheet on mould arranged in columns, so, just complete the solar battery group of one group of series connection, then will organize solar battery group series connection more, form solar battery array.Or on the sensitive surface electrode of every solar battery sheet, first weld one end of the triangle of a welding, then, each solar battery sheet containing welding is overturn, the other end of welding rectangle is welded on adjacent back electrode, this completes the series welding work of solar battery sheet.The present embodiment is as a example by 60 solar battery sheet series connection.Certainly, as required, it is possible to each solar battery group is in parallel, to adapt to the current/voltage value of required output.Finally, it is clear that two weldings can be reserved, positive pole, negative pole as array are drawn, and this is known to those skilled in the art, is seldom described.Certainly, follow-up also include a lot of step, be well known to those skilled in the art, this example is not done concrete introduction, only briefly describes, such as, also include glass plate, binding agent, backsheet layer, after glass plate is placed on the table, spread adhesive layer, then the array connected before placement on adhesive layer, then on array, lay a layer binder layer, on adhesive layer, spread backsheet layer again, then will its global transfer to laminating machine be laminated.The most again the solar module being laminated is loaded onto frame, in the positive pole that reserves, negative pole thereto, i.e. prepare solar module.
Embodiment 2
Use the solar battery sheet of shapes and sizes same as in Example 1, on it, the gate electrode line of printing is identical, the conductive strips 5 using shape same as in Example 1 connect two adjacent solar battery sheets, except for the difference that a length of 2.5mm in the width i.e. base of isosceles triangle of the widest part of isosceles triangle the first conductive strips connecting portion 51, the width of rectangle the second conductive strips connecting portion 52 is 4mm.Size and the sheet number of solar battery sheet 1 are same as in Example 1, and preparation method and the total length of conductive strips 5 and the position of welding, method are same as in Example 1.
Embodiment 3
The present embodiment specifically by the first conductive strips connecting portion 51 be shaped as right angled triangle such as accompanying drawing 7 as a example by be described in detail.The present embodiment is as a example by the battery of 156mm × 156mm × 200 μm, and the width of its sensitive surface electrode main grid line 2 is 1.5mm, a length of 153mm.Select a length of 2.5mm in the width i.e. base of right angled triangle of the widest part of right angled triangle the first conductive strips connecting portion 51, a height of 153mm of the i.e. right angled triangle of length of the first conductive strips connecting portion 51, the initiating terminal of the i.e. first conductive strips connecting portion 51 be sensitive surface electrode main grid line 2 original position from solaode start cover, the present embodiment specifically by the second conductive strips connecting portion 52 be shaped as rectangle as a example by be described in detail.The width of its shady face gate electrode line 4 is 1.8mm, and a length of 136mm is divided into 8 sections.The width designing this rectangle the second conductive strips connecting portion 52 is 4mm, a length of 136mm.Multiple solar battery sheets are sequentially connected in series, and Fig. 8 is the front schematic view of a solar battery sheet；As shown in Figure 8, three sensitive surface electrode main grid line 2 are had as sensitive surface electrode i.e. negative pole in solar battery sheet front face surface, these three sensitive surface electrode main grid line 2 are welded with conductive strips 5 as shown in Figure 7, the right angled triangle of conductive strips 5 covers in this sensitive surface electrode main grid line 2, summit falls in sensitive surface electrode main grid line 2, the square position away from solar battery sheet edge 1.5mm.Three shady face gate electrode lines 4 are had as backplate i.e. positive pole on adjacent solar battery sheet backside surface, these three shady face gate electrode lines 4 are welded with conductive strips 5 as shown in Figure 7, the rectangle of conductive strips 5 covers on this shady face gate electrode line 4, is terminating away from solar battery sheet edge 10mm.Method same as in Example 1 is used to prepare solar module.
Embodiment 4
The present embodiment specifically by the first conductive strips connecting portion 51 be shaped as isosceles trapezoid as shown in Figure 9 as a example by be described in detail.The present embodiment is as a example by the battery of 156mm × 156mm × 200 μm, and the width of its sensitive surface electrode main grid line 2 is 1.5mm, a length of 153mm.Selecting a length of 2.5mm in the width i.e. base of isosceles trapezoid of the widest part of isosceles trapezoid the first conductive strips connecting portion 51, a length of 0.5mm of the width i.e. top margin of isosceles trapezoid at the narrowest place of this isosceles trapezoid the first conductive strips connecting portion 51, welding more preferably welds.A height of 153mm of the i.e. isosceles trapezoid of length of the first conductive strips connecting portion 51, the initiating terminal 511 of the i.e. first conductive strips connecting portion 51 be sensitive surface electrode main grid line 2 original position from solaode start cover, the present embodiment specifically by the second conductive strips connecting portion 52 be shaped as rectangle such as accompanying drawing 8 as a example by be described in detail.The width of its shady face gate electrode line 4 is 1.8mm, and a length of 136mm is divided into 8 sections.Then the width of this rectangle the second conductive strips connecting portion 52 general is 4mm, a length of 136mm.Multiple solar battery sheets are sequentially connected in series, and Figure 10 is the front schematic view of a solar battery sheet；As shown in Figure 10, three sensitive surface electrode main grid line 2 are had as sensitive surface electrode i.e. negative pole in solar battery sheet front face surface, these three sensitive surface electrode main grid line 2 are welded with conductive strips 5 as shown in Figure 9, the isosceles trapezoid of conductive strips 5 covers in this sensitive surface electrode main grid line 2, top margin falls in the centre position of sensitive surface electrode main grid line 2, away from solar battery sheet edge 1.5mm.Three shady face gate electrode lines 4 are had as backplate i.e. positive pole on surface, solar cell back face, these three shady face gate electrode lines 4 are welded with conductive strips 5 as shown in Figure 9, the rectangle of conductive strips 5 covers on this shady face gate electrode line 4, is terminating away from solar battery sheet edge 10mm.Method same as in Example 1 is used to prepare solar module.
Embodiment 5
When conductive strips 5 draw solar battery sheet 1 shady face electrode current, on shady face gate electrode line 4, electric current there is also a little uneven, on conductive strips 5, the electric current density of carrying is slightly different, the width of the second conductive strips connecting portion 52 is used can preferably to derive solar cell back bright finish electrode current along with the conductive strips of the size gradual change of electric current density, cost-effective.The width of general second conductive strips connecting portion 52 increases along with electric current density and widens, reduce along with electric current density and narrow, at the welding that the local use that electric current density is big is wider, reduce internal resistance, reduce the power of own loss, narrower welding is used in the place that electric current density density is little, cost-effective.As shown in Figure 11, as conductive strips 5 include the second conductive strips connecting portion 52 of connecting the shady face electrode of a solar battery sheet, the one end that need to extend the sensitive surface electrode connecting load or extending connection adjacent solar battery sheet is the second conductive strips connecting portion end 522, the other end of the second conductive strips connecting portion 52 is the initiating terminal 521 of the second conductive strips connecting portion, initiating terminal 521 width of general second conductive strips connecting portion is less than the second conductive strips connecting portion end 522 width, extraction along with electric current, the flow direction of electric current, electronics is assembled, electric field density strengthens, electric current density strengthens, conductive strips 5 gradually broaden.The gathering of general electronics, electric current density the most uniformly strengthens, and initiating terminal the 521 to the second conductive strips connecting portion end 522 width of the second conductive strips connecting portion is gradually broadened by narrow.It is typically based on the size of battery and the size of the size design conductive strips 5 of shady face gate electrode line 4 and the size of the second conductive strips connecting portion 52, it is preferable that the width of the widest part of the second conductive strips connecting portion 52 is 1-3mm.The width at the narrowest place of the second conductive strips connecting portion 52 is 0-2mm.Can be a point, the length of the second conductive strips connecting portion 52 accounts for the 50%-100% of the length of shady face electrode.Can be isometric with the length of shady face electrode, i.e. isometric with the length of solar battery sheet, at shady face electrode initiating terminal, shady face electrode can also be reserved certain length to start to connect conductive strips 5, prevent edge shorting, can be shorter than the length of the first conductive strips connecting portion 51, design according to cell piece 1 is different and different, and such as can use the second conductive strips connecting portion 52 is 8 segmentations, it is also possible to for all-in-one-piece be the conductive strips of whole.Preferably, the second conductive strips connecting portion 52 center line symmetrically structure along its length, i.e. the uniform extracted current in center line both sides.General second conductive strips connecting portion 52 is along the center line symmetrically structure of the length direction of shady face gate electrode line 4, it is ensured that uniform current density, reduces internal resistance further.The shape of the second conductive strips connecting portion 52 can be triangle, such as isosceles triangle, right angled triangle etc.
The present embodiment is specifically shaped as isosceles trapezoid with the first conductive strips connecting portion 51, and the isosceles trapezoid that is shaped as of the second conductive strips connecting portion 52 is described in detail as shown in accompanying drawing 11,12,13.The present embodiment is as a example by the battery of 156mm × 156mm × 200 μm, and the width of its sensitive surface electrode main grid line 2 is 1.5mm, a length of 153mm.Select a length of 2.5mm in the width i.e. base of isosceles trapezoid of the widest part of isosceles trapezoid the first conductive strips connecting portion 51, the a length of 0.5mm of the width i.e. top margin of isosceles trapezoid at the narrowest place of this isosceles trapezoid the first conductive strips connecting portion 51, a height of 153mm of the i.e. isosceles trapezoid of length of the first conductive strips connecting portion 51, the initiating terminal 511 of the i.e. first conductive strips connecting portion is that sensitive surface electrode main grid line 2 original position from solaode starts to cover.
The width of its shady face gate electrode line 4 is 1.8mm, and a length of 136mm is divided into 8 sections.The a length of 4mm in the width i.e. base of isosceles trapezoid of the widest part of this isosceles trapezoid the second conductive strips connecting portion 52, the a length of 0.5mm of the width i.e. top margin of isosceles trapezoid at the narrowest place of this isosceles trapezoid the second conductive strips connecting portion 52, a height of 136mm of the i.e. isosceles trapezoid of length of the second conductive strips connecting portion 52.Second half isosceles trapezoid of conductive strips 5 covers on this shady face gate electrode line 4, terminates away from solar battery sheet edge 10mm at shady face gate electrode line 4.Method same as in Example 1 is used to prepare solar module.
Comparative example 1
Solar module is prepared as a example by the conventional shape of conductive strips 5 such as accompanying drawing 14 first conductive strips connecting portion 51 and the shape of the second conductive strips connecting portion 52 are rectangle.Size and the sheet number of solar battery sheet 1 are same as in Example 1, and preparation method and the total length of conductive strips 5 and the position of welding, method are same as in Example 1.The width of rectangle is 1.5mm, a length of 300mm.
Comparative example 2
Solar module is prepared as a example by the conventional shape of conductive strips 5 such as accompanying drawing 14 first conductive strips connecting portion 51 and the shape of the second conductive strips connecting portion 52 are rectangle.Size and the sheet number of solar battery sheet 1 are same as in Example 1, and preparation method and the total length of conductive strips 5 and the position of welding, method are same as in Example 1.The width of rectangle is 2.5mm, a length of 300mm.
Comparative example 3
It is isosceles triangle with such as the shape of rhombus conductive strips 5 that is first conductive strips connecting portion 51 of accompanying drawing 15 and the shape of the second conductive strips connecting portion 52, and first the bottom side length of conductive strips connecting portion 51 and the second conductive strips connecting portion 52 isometric, prepare solar module as a example by being 2.5mm.Size and the sheet number of solar battery sheet 1 are same as in Example 1, and preparation method and the total length of conductive strips 5 and the position of welding, method are same as in Example 1.The total length of conductive strips 5 is 300mm.
Performance test
Use the solar module test device of simulation AM1.5 sunlight, spectrum meets the A grade of IEC 60904-9, the standard solar cells assembly using same spectra response and formed objects before test is demarcated, and the continuous solar module preparing embodiment 1-5 and comparative example 1-3 is tested under identical ambient temperature, test result such as table 1.
Table 1
| Peak power (W) | Internal resistance Rs(Europe) | |
| Embodiment 1 | 247.0 | 0.5018 |
| Embodiment 2 | 247.1 | 0.5007 |
| Embodiment 3 | 247.1 | 0.4993 |
| Embodiment 4 | 247.2 | 0.4976 |
| Embodiment 5 | 247.1 | 0.5002 |
| Comparative example 1 | 244.8 | 0.5583 |
| Comparative example 2 | 245.1 | 0.4946 |
| Comparative example 3 | 246.5 | 0.5097 |
The solar module internal resistance of the present invention is obviously reduced, and reduces the power of own loss, and output significantly increases, simultaneously because the light rate of sensitive surface increases the electricity conversion that can also carry cell piece.The solar module of the present invention is applied to the solar power station that a large amount of solar module assembles, the output of whole solar power station will be greatly improved, and the method for the present invention is simple, easily realizes, and low cost, the development for industry is laid a good foundation.
Claims (38)
1. a solar module, it is characterised in that include some solar battery sheets and conductive strips,
Between solar battery sheet, and/or, it is electrically connected through between solar battery sheet and load；
Described solar battery sheet includes sensitive surface electrode and shady face electrode, being subject to of a solar battery sheet
Connect conductive strips on bright finish electrode, shady face electrode connects another conductive strips；
The conductive strap portion of conductive strips and sensitive surface electrode connection is the first conductive strips connecting portion, conductive strips with
The conductive strap portion of shady face electrode connection is the second conductive strips connecting portion；
The width of the widest part of described first conductive strips connecting portion is a, and described second conductive strips connecting portion is
Width at Kuan is b, wherein a ＜ b,
Described first conductive strips connecting portion need to extend connection load or extend the adjacent solar-electricity of connection
One end of the shady face electrode of pond sheet is the first conductive strips connecting portion end, another of the first conductive strips connecting portion
End is the initiating terminal of the first conductive strips connecting portion, and the initiating terminal width of described first conductive strips connecting portion is less than the
One conductive strips connecting portion terminal end width,
The initiating terminal of described first conductive strips connecting portion to the first conductive strips connecting portion terminal end width gradually by narrow
Broaden.
Solar module the most according to claim 1, it is characterised in that described first conduction
The widest part width with connecting portion and the ratio of the widest part width of the second conductive strips connecting portion is 0.5≤
A/b ＜ 1.
Solar module the most according to claim 1, it is characterised in that described first conduction
The widest part width and the difference of the widest part width of the second conductive strips connecting portion with connecting portion are 0 ＜ b-a
≤3mm。
Solar module the most according to claim 1, it is characterised in that described solar-electricity
The width of pond sheet is d, the width of the widest part of described first conductive strips connecting portion be 0.6%d≤a≤
2%d；The width of the widest part of described second conductive strips connecting portion is 0.6%d ＜ b≤4%d.
Solar module the most according to claim 1, it is characterised in that described first conduction
The width of the widest part with connecting portion is 1mm≤a≤3mm；Described second conductive strips connecting portion is
Width at Kuan is 1mm ＜ b≤6mm.
Solar module the most according to claim 5 a, it is characterised in that solar-electricity
Pond sheet includes three sensitive surface electrodes, and each sensitive surface electrode connects conductive strips, described first conductive strips
The width of the widest part of connecting portion is 1.5mm≤a≤2.5mm；One solar battery sheet includes three
Individual shady face electrode, each shady face electrode connects conductive strips, and described second conductive strips connecting portion is
Width at Kuan is 1.5mm ＜ b≤5mm.
Solar module the most according to claim 5 a, it is characterised in that solar-electricity
Pond sheet includes two sensitive surface electrodes, and each sensitive surface electrode connects conductive strips, described first conductive strips
The width of the widest part of connecting portion is 2.0mm≤a≤2.5mm；One solar battery sheet includes two
Individual shady face electrode, each shady face electrode connects conductive strips, and described second conductive strips connecting portion is
Width at Kuan is 2.0mm ＜ b≤5mm.
Solar module the most according to claim 1, it is characterised in that described first conduction
Area and the ratio of the area of the second conductive strips connecting portion with connecting portion are c, wherein, and 0.25≤c ＜
1。
Solar module the most according to claim 1, it is characterised in that described solar-electricity
Pond sheet includes at least two, the sensitive surface electrode of a solar battery sheet of adjacent two solar battery sheets
It is electrically connected through with the shady face electrode of another solar battery sheet；One solar battery sheet
It is described that second conductive strips connecting portion of the first conductive strips connecting portion and another solar battery sheet extends composition
The conductive strips of electrical connection.
Solar module the most according to claim 1, it is characterised in that described first leads
At least part of width of electricity band connecting portion is along with the size gradual change of electric current density.
11. solar modules according to claim 1, it is characterised in that described first leads
The width of electricity band connecting portion is along with the size gradual change of electric current density.
12. solar modules according to claim 1, it is characterised in that described first leads
The width of electricity band connecting portion increases along with electric current density and widens, and reduces along with electric current density and narrows.
13. solar modules according to claim 1, it is characterised in that described first leads
The electricity band connecting portion symmetrically structure of center line along its length.
14. solar modules according to claim 1, it is characterised in that described first leads
Electricity band connecting portion be shaped as triangle.
15. solar modules according to claim 14, it is characterised in that described first leads
Electricity band connecting portion be shaped as isosceles triangle.
16. solar modules according to claim 14, it is characterised in that described first leads
Electricity band connecting portion be shaped as right angled triangle.
17. solar modules according to claim 1, it is characterised in that described first leads
Being shaped as of electricity band connecting portion is trapezoidal.
18. solar modules according to claim 17, it is characterised in that described first leads
Electricity band connecting portion be shaped as isosceles trapezoid.
19. solar modules according to claim 1, it is characterised in that described second leads
The width of electricity band connecting portion is the most consistent.
20. solar modules according to claim 19, it is characterised in that described second leads
Electricity band connecting portion be shaped as rectangle.
21. solar modules according to claim 1, it is characterised in that described second leads
At least part of width of electricity band connecting portion is along with the size gradual change of electric current density.
22. solar modules according to claim 21, it is characterised in that described second leads
The width of electricity band connecting portion is along with the size gradual change of electric current density.
23. solar modules according to claim 22, it is characterised in that described second leads
The width of electricity band connecting portion increases along with electric current density and widens, and reduces along with electric current density and narrows.
24. solar modules according to claim 21, it is characterised in that described second leads
Electricity band connecting portion need to extend connection load or extend the sensitive surface electricity connecting adjacent solar battery sheet
One end of pole is the second conductive strips connecting portion end, and the other end of the second conductive strips connecting portion is the second conductive strips
The initiating terminal of connecting portion, the initiating terminal width of described second conductive strips connecting portion is less than the second conductive strips connecting portion
Terminal end width.
25. solar modules according to claim 24, it is characterised in that described second leads
The initiating terminal of electricity band connecting portion is gradually broadened by narrow to the second conductive strips connecting portion terminal end width.
26. solar modules according to claim 21, it is characterised in that described second leads
The electricity band connecting portion symmetrically structure of center line along its length.
27. solar modules according to claim 21, it is characterised in that described second leads
Electricity band connecting portion be shaped as triangle.
28. solar modules according to claim 27, it is characterised in that described second leads
Electricity band connecting portion be shaped as isosceles triangle.
29. solar modules according to claim 27, it is characterised in that described second leads
Electricity band connecting portion be shaped as right angled triangle.
30. solar modules according to claim 21, it is characterised in that described second leads
Being shaped as of electricity band connecting portion is trapezoidal.
31. solar modules according to claim 30, it is characterised in that described second leads
Electricity band connecting portion be shaped as isosceles trapezoid.
32. solar modules according to claim 1, it is characterised in that described first leads
Electricity band connecting portion is isosceles triangle, and described second conductive strips connecting portion is rectangle, described isosceles triangle
Bottom side length is 0.6-0.85 with the wide ratio of rectangle.
33. solar modules according to claim 32, it is characterised in that described isosceles three
The bottom side length of dihedral is than the wide little 0.5mm-1.5mm of rectangle.
34. solar modules according to claim 1, it is characterised in that described first leads
The 0-1.3% that width is solar battery sheet width at the narrowest place of electricity band connecting portion.
35. solar modules according to claim 1, it is characterised in that described first leads
The width at the narrowest place of electricity band connecting portion is 0-2mm.
36. solar modules according to claim 1, it is characterised in that described first leads
The length of electricity band connecting portion accounts for the 80%-100% of sensitive surface electrode length；
The length of described second conductive strips connecting portion accounts for the 50%-100% of shady face electrode length.
37. solar modules according to claim 1, it is characterised in that described conductive strips
For welding, the connection of described welding and sensitive surface electrode is for welding；Described welding and the connection of shady face electrode
For welding.
38. solar modules according to claim 1, it is characterised in that described conductive strips
For conductive polymer band, the connection of described conductive polymer band and sensitive surface electrode is for pasting；Described macromolecule
The connection of conductive strips and shady face electrode is for pasting.
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|---|---|---|---|
| CN201210086063.4A CN103367508B (en) | 2012-03-28 | 2012-03-28 | A kind of solar module |
| PCT/CN2013/073356 WO2013143478A1 (en) | 2012-03-28 | 2013-03-28 | Solar battery assembly |
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| CN201210086063.4A CN103367508B (en) | 2012-03-28 | 2012-03-28 | A kind of solar module |
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| CN106129161B (en) * | 2016-02-17 | 2020-05-26 | 苏州阿特斯阳光电力科技有限公司 | Solar cell module |
| CN105552154A (en) * | 2015-12-14 | 2016-05-04 | 山东永泰集团有限公司 | Assembly whose inner circuit is optimized |
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| JP3888939B2 (en) * | 2002-07-16 | 2007-03-07 | シャープ株式会社 | Solar cell module |
| JP4463297B2 (en) * | 2007-08-07 | 2010-05-19 | 三洋電機株式会社 | Solar cell module |
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| CN201868440U (en) * | 2010-12-08 | 2011-06-15 | 山东力诺太阳能电力股份有限公司 | Front side electrode structure of solar battery |
| CN102130197A (en) * | 2010-12-31 | 2011-07-20 | 常州天合光能有限公司 | Light-reflecting low-resistance crystalline silicon solar cell assembly and connection welding belt thereof |
| CN201994308U (en) * | 2011-03-09 | 2011-09-28 | 茂迪(苏州)新能源有限公司 | Electrode image of solar cell |
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2012
- 2012-03-28 CN CN201210086063.4A patent/CN103367508B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102097512A (en) * | 2010-09-28 | 2011-06-15 | 常州天合光能有限公司 | Novel interconnection strip for photovoltaic solar module and battery plates for matched use |
| CN101950761A (en) * | 2010-09-29 | 2011-01-19 | 上海晶澳太阳能科技有限公司 | Novel solar cell and solar photovoltaic module composed thereof |
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| CN103367508A (en) | 2013-10-23 |
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