CN102361044B - Solar module, solder strip and method for bonding solder strip and solar cell - Google Patents
Solar module, solder strip and method for bonding solder strip and solar cell Download PDFInfo
- Publication number
- CN102361044B CN102361044B CN201110342947.7A CN201110342947A CN102361044B CN 102361044 B CN102361044 B CN 102361044B CN 201110342947 A CN201110342947 A CN 201110342947A CN 102361044 B CN102361044 B CN 102361044B
- Authority
- CN
- China
- Prior art keywords
- welding
- solar cell
- solar
- section
- solder strip
- 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.)
- Expired - Fee Related
Links
- 238000000034 method Methods 0.000 title claims abstract description 18
- 229910000679 solder Inorganic materials 0.000 title abstract 10
- 238000003466 welding Methods 0.000 claims abstract description 122
- 239000000843 powder Substances 0.000 claims description 8
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 2
- 230000008569 process Effects 0.000 abstract description 3
- 238000005476 soldering Methods 0.000 abstract 1
- 210000004027 cell Anatomy 0.000 description 83
- 238000005516 engineering process Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 238000005538 encapsulation Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229910052770 Uranium Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- JFALSRSLKYAFGM-UHFFFAOYSA-N uranium(0) Chemical compound [U] JFALSRSLKYAFGM-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Landscapes
- Photovoltaic Devices (AREA)
Abstract
A solder strip has an arc-shaped cross section perpendicular to a long axis of the solder strip. A solar module comprises a plurality of solar cells, and the solar module is connected with the plurality of solar cells through the solder strips. And a method of bonding the solder strip to the solar cell, the method comprising placing the solder strip on the solar cell, wherein a portion of the solder strip is on the solar cell, a portion of the solder strip is suspended outside the solar cell, and soldering a portion of the solder strip on the solar cell. The technical scheme of the invention can reduce the generation of micro-cracks of the solar cell in the welding process.
Description
Technical field
The present invention relates to a kind of solar energy module, particularly a kind of welding of solar energy module.
Background technology
The irreproducibility energy relevant such as coal, oil and uranium lacks day by day, and relevant ecological and safety problem, makes the use that increases alternative on-consumable energy resources become most important.Due to a large amount of manufacturing technology improvement of producing solar panel, promote the application of solar energy.Solar power generation can be realized significant environmental benefit.
Solar energy module mainly comprises solar cell, encapsulation material, backboard, for solar cell and backboard are fixed on to framework wherein.In solar energy module, generally mostly be to use welding to connect each solar cell.
But, as shown in Figure 1, generally mostly be to adopt thimble 110 to pressurize, welding 120 is fixed on to solar cell 100, then by heating, welding 120 is welded on solar cell 100 again.Because thimble welding belongs to contact technique, contact easily forms residual concentrated stress in battery module force area improperly, if contact is improper, easily cause solar cell to produce hallrcuts (micro creak), increase subsequent movement, encapsulation material laminating technology (lamination process) or machinery apply the fragmentation rate of test (mechanical loading test).
Summary of the invention
Therefore the object of the present invention is to provide a kind of welding, can be in order to connect multiple solar cells, to reduce the generation of solar cell hallrcuts in welding procedure.
According to one embodiment of the invention, a kind of solar energy module is proposed, comprise multiple solar cells, and in order to connect the welding of solar cell.Welding comprises the section of confluxing that fits in solar cell and is arranged between solar cell to be connected the linkage section of the section of confluxing, and its middle connecting segment is arc perpendicular to the section of welding major axis.
Another embodiment of the present invention is a kind of welding, and in order to connect two-end-point, wherein welding is arc perpendicular to the section of welding major axis.
An embodiment more of the present invention is a kind of method that engages welding and solar cell, comprise at least one solar cell is provided, then, place aforesaid welding on solar cell, some of weldings are positioned on solar cell, the welding of part is suspended between solar cell, and welds this part welding being positioned on described multiple solar cell, makes this part welding be engaged in described multiple solar cell.
Because the welding of arc can produce distortion in the time welding, if be used in connection solar cell, can effectively avoid the solar cell of below to be subject to stress to concentrate and produce hallrcuts, reduce the probability of solar cell sliver in subsequent technique.Welding both sides have inclined-plane, with by light reflection to solar cell, promote the utilization rate of light.
Brief description of the drawings
For above and other object of the present invention, feature, advantage and embodiment can be become apparent, being described in detail as follows of appended accompanying drawing:
Fig. 1 illustrates traditional schematic diagram that welds welding on solar cell.
Fig. 2 illustrates the three-dimensional view before solar energy module one embodiment welding of the present invention.
Fig. 3 illustrates along the profile of the line segment A-A of Fig. 2.
Fig. 4 illustrates along profile and the thimble of the line segment B-B of Fig. 2.
Fig. 5 illustrates the three-dimensional view after the solar cell of Fig. 2 and welding welding.
Fig. 6 illustrates along the profile of the line segment C-C in Fig. 5.
Fig. 7 illustrates the flow chart of a kind of method that connects solar cell of the present invention.
[main description of reference numerals]
100: solar cell
110: thimble
120: welding
200: solar energy module
210: solar cell
220: welding
222: the section of confluxing
222 ': the section of confluxing after welding
224: linkage section
225: inclined-plane
230: scaling powder
S10～S16: step
D: distance
Embodiment
Below will clearly demonstrate spirit of the present invention with accompanying drawing and detailed description, under any, in technical field, those of ordinary skill is being understood after the preferred embodiments of the present invention, when the technology that can be enlightened by the present invention, change and modification, it does not depart from spirit of the present invention and scope.
With reference to Fig. 2, it illustrates the three-dimensional view before solar energy module one embodiment welding of the present invention.Solar energy module 200 includes multiple solar cells (solar cell) 210 and in order to connect the welding (ribbon) 220 of multiple solar cells 210.Solar cell can be for example the in column or configuration of embarking on journey, welding 220 can be electrically connected with the terminal box (not shown) being arranged on backboard, to be communicated with solar cell 210 and terminal box, outwards carry so as to the electric power of controlling solar cell 210 and solar cell 210 is collected.Welding 220 is curved perpendicular to the section of the major axis of welding 220.
In the time that welding 220 is placed on solar cell 210, the welding 220 of part is positioned on solar cell 210, as the section of confluxing 222, and the welding 220 of part is suspended between solar cell 210, as linkage section 224, part welding 220 can be positioned under another solar cell 210 as another section of confluxing 222, certainly, in the time of connection welding belt 220 and solar cell 210, also can only connect a welding 220 and a solar cell 210.The linkage section 224 being wherein arranged between solar cell 210 connects the section of confluxing 222.The circuit of solar cell 210 is whole on the section of confluxing 222 for converging, and solar cell 210 is connected with terminal box (not shown) or other solar cells by the section of confluxing 222.
With reference to Fig. 3, it illustrates along the profile of the line segment A-A of Fig. 2.The section of linkage section 224, refers in particular to the section perpendicular to welding major axis herein, is arc.The both sides of linkage section 224 are inclined-plane 225.The curvature of welding 220 can design according to different platform and thimble displacement, and the angle on the inclined-plane 225 of welding 220 also can coordinate the factor designs such as the size of solar cell 210 (seeing Fig. 2).The inclined-plane 225 of welding 220 can have chamfering.The material of welding 220 can be for example metal.
With reference to Fig. 4, it illustrates along profile and the thimble of the line segment B-B of Fig. 2.Before carrying out welding step, the section of the section of confluxing 222, refers in particular to the section perpendicular to welding major axis herein, and before welding, the section of the section of confluxing 222 is arc.Circuit on solar cell 210 converges whole to the section of confluxing 222.The both sides of the section of confluxing 222 are inclined-plane 225, and inclined-plane 225 is oblique solar cell 210, with by light reflection to solar cell 210 (seeing Fig. 2) surface, promote the utilance of light.
Before welding 220 is placed on to solar cell 210, position coating scaling powder 230 that conventionally can be corresponding on solar cell 210.Space between welding 220 and the solar cell 210 of arc also can be in order to accommodating scaling powder 230, contributes to make in follow-up welding procedure that welding 220 and solar cell 210 weld is more tight.
The curvature of welding 220 can design according to the actual requirements.In other words, between the line that welding 220 forms perpendicular to major axis section two ends perpendicular to arc and the welding 220 of the section of welding major axis, maximum normal distance d can design according to the actual requirements, the displacement of thimble 110 when maximum normal distance d approximates welding 220 and welded between the line that for instance, welding 220 forms perpendicular to major axis section two ends perpendicular to arc and the welding 220 of the section of welding major axis.The welding 220 of arc can produce distortion in the time being contacted, and provides thimble 110 to exert pressure and spends in advance, slows down contacting between thimble 110 and solar cell 210, reduces the concentrated situation of stress.
With reference to Fig. 5, it illustrates the three-dimensional view after the solar cell 210 of Fig. 2 welds with welding 220.Welding 220 is after welding, and after welding, the section of confluxing 222 ' can be smooth on solar cell 210, and linkage section 224 is still suspended between solar cell 210.The welding 220 of part can be positioned under another solar cell 210 and be connected with another solar cell 210.For example, not yet pass through welding step if be positioned at the welding 220 of another solar cell 210 belows in this accompanying drawing, it can weld follow-up, connect solar cell 210 and another solar cell 210 by welding 220, in another embodiment, also welding 220 and multiple solar cells 210 can be arranged appropriate after, connect by welding simultaneously.
With reference to Fig. 6, it illustrates along the profile of the line segment C-C in Fig. 5.Through after welding procedure, after welding, the section of confluxing 222 ' produces deformation and smooth on solar cell 210 (seeing Fig. 5), effectively solve juxtaposition metamorphose and be directly delivered to solar cell 210 and cause the concentrated problem of stress, and then avoid the situation of solar cell 210 slivers.In addition, scaling powder 230 can be assisted the welding between welding 220 and solar cell 210, but scaling powder 230 volatilization thereupon in welding process.The inclined-plane 225 of welding 220 both sides is oblique solar cell 210, so that the light receiving is reflected to solar cell 210, promotes the utilization rate of light.In addition,, after solar cell 210 welds with welding 220 in Fig. 5, because not being subject to the downforce (holding pressure) of thimble 110, A-A place linkage section 224 still maintains the arc tangent plane as Fig. 3.
With reference to Fig. 7, it illustrates the flow chart of a kind of method that connects solar cell of the present invention.Step S10 is for providing at least one solar cell.Step S12 is at solar cell surface spraying scaling powder.Step S14 is for placing welding on solar cell, and wherein welding is arc perpendicular to the section of welding major axis.The welding of part is positioned on solar cell, and the welding of part is suspended between solar cell, and the welding of part can be positioned under another solar cell, and scaling powder can be between welding and solar cell.Then, step S16 is that welding is positioned at this part welding on solar cell, makes this part welding be engaged in solar cell.Wherein, step S16 can for example use thimble that impressed pressure is provided, and makes this part welding can be fixed on default bonding station, and by heating welding, makes this part welding be engaged in described multiple solar cell.In addition, the welding of arc can produce distortion in the time of welding, produces hallrcuts to avoid the solar cell stress of below to concentrate.
Although the present invention with embodiment openly as above; so it is not in order to limit the present invention; any those of ordinary skill in the art; without departing from the spirit and scope of the present invention; when being used for a variety of modifications and variations, the scope that therefore protection scope of the present invention ought define depending on appended claim is as the criterion.
Claims (5)
1. a welding, in order to connect the multiple solar cells in solar energy module, wherein this welding is arc perpendicular to the section of this welding major axis, and
After welding, this welding comprises multiple sections of confluxing of fitting in described multiple solar cells and is arranged between described multiple solar cell to be connected at least one linkage section of described multiple sections of confluxing, and this linkage section is arc perpendicular to the section of this welding major axis, wherein
The displacement of thimble when equaling this welding and be subject to a downforce perpendicular to maximum normal distance between the arc of the section of this welding major axis and line that this welding forms perpendicular to the arc two ends of major axis section.
2. welding as claimed in claim 1, wherein this welding is inclined-plane along at least one side of major axis.
3. a method that engages welding and solar cell, comprising:
At least one solar cell is provided;
Place welding as claimed in claim 1 on this at least one solar cell, some of these weldings are positioned on this at least one solar cell, part this welding be suspended on this at least one solar cell outside; And
Welding is positioned at this part welding on this at least one solar cell, makes this part welding be engaged in this at least one solar cell.
4. the method for joint welding as claimed in claim 3 and solar cell, before this welding of placement is on this at least one solar cell, also comprises that spraying one scaling powder is on this at least one solar cell.
5. the method for joint welding as claimed in claim 3 and solar cell, this part welding that wherein welding is positioned on this at least one solar cell comprises:
Be fixed in this part welding on this at least one solar cell; And heat this part welding being positioned on this at least one solar cell, make this part welding be engaged in this at least one solar cell.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW100132107 | 2011-09-06 | ||
| TW100132107A TWI453933B (en) | 2011-09-06 | 2011-09-06 | Solar module, ribbon, and method for connecting ribbon and solar cell |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102361044A CN102361044A (en) | 2012-02-22 |
| CN102361044B true CN102361044B (en) | 2014-07-16 |
Family
ID=45586323
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110342947.7A Expired - Fee Related CN102361044B (en) | 2011-09-06 | 2011-10-25 | Solar module, solder strip and method for bonding solder strip and solar cell |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102361044B (en) |
| TW (1) | TWI453933B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103785916B (en) * | 2014-01-20 | 2016-09-14 | 苏州爱康光电科技有限公司 | The welding tooling of welding is welded on solar battery sheet |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005302902A (en) * | 2004-04-08 | 2005-10-27 | Sharp Corp | Solar cell and solar cell module |
| WO2010091680A2 (en) * | 2009-02-16 | 2010-08-19 | Q-Cells Se | Solar cell string and solar module having such a solar cell string |
| CN201796922U (en) * | 2010-08-30 | 2011-04-13 | 江苏润达光伏科技有限公司 | Low-stress solar component |
| CN201868464U (en) * | 2010-11-03 | 2011-06-15 | 南京大全新能源有限公司 | Special template for welding solar cells |
-
2011
- 2011-09-06 TW TW100132107A patent/TWI453933B/en not_active IP Right Cessation
- 2011-10-25 CN CN201110342947.7A patent/CN102361044B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005302902A (en) * | 2004-04-08 | 2005-10-27 | Sharp Corp | Solar cell and solar cell module |
| WO2010091680A2 (en) * | 2009-02-16 | 2010-08-19 | Q-Cells Se | Solar cell string and solar module having such a solar cell string |
| CN201796922U (en) * | 2010-08-30 | 2011-04-13 | 江苏润达光伏科技有限公司 | Low-stress solar component |
| CN201868464U (en) * | 2010-11-03 | 2011-06-15 | 南京大全新能源有限公司 | Special template for welding solar cells |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2005-302902A 2005.10.27 |
Also Published As
| Publication number | Publication date |
|---|---|
| TWI453933B (en) | 2014-09-21 |
| CN102361044A (en) | 2012-02-22 |
| TW201312772A (en) | 2013-03-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11469481B2 (en) | Battery unit and manufacturing method thereof, and battery module | |
| US20200243896A1 (en) | Battery unit and battery module | |
| CN208014793U (en) | Connecting elements and rechargeable battery | |
| CN108687418B (en) | Solder strip connection method of solar cell | |
| CN203401228U (en) | Equipment for series welding of crystalline silica solar energy cell | |
| CN102097511B (en) | Progressively welded packaging module | |
| CN105914335A (en) | Flexible-packaging power lithium ion battery module busbar | |
| CN102361044B (en) | Solar module, solder strip and method for bonding solder strip and solar cell | |
| CN201629366U (en) | Lithium ion battery anode tab | |
| CN208045591U (en) | Connecting elements and rechargeable battery | |
| CN102489857A (en) | Method for welding positive electrode aluminum electrode tab of lithium ion battery and nickel strap | |
| CN210156392U (en) | High-efficient photovoltaic module | |
| CN210156393U (en) | High-efficient photovoltaic double-sided power generation subassembly | |
| CN208189922U (en) | A kind of busbar connector of high-multiplying power discharge mould group | |
| CN205911352U (en) | Soft packet of power lithium ion battery module busbar | |
| CN210325937U (en) | Novel battery module | |
| CN102427137B (en) | Battery, battery current collector, and welding method for battery current collector | |
| CN203566090U (en) | Series welding device for back contacting solar cell | |
| CN101692505B (en) | Plate lug connecting method used in process of assembling power soft-packed lithium-ion storage batteries | |
| CN201796906U (en) | Crystal silicon solar panel module unit | |
| CN104269455B (en) | Photovoltaic module and its production method | |
| CN102412317B (en) | Electrode welding structure, back electrode solar cell module and manufacturing method thereof | |
| CN102694141A (en) | Novel aluminum-to-nickel conversion method of flexible packaging lithium ion battery | |
| CN215644531U (en) | Busbar and photovoltaic module | |
| CN210576198U (en) | Circuit breaker welding structure and protection shield |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140716 Termination date: 20201025 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |