CN203339198U - Welding strip for welding MWT batteries - Google Patents
Welding strip for welding MWT batteries Download PDFInfo
- Publication number
- CN203339198U CN203339198U CN2013204011701U CN201320401170U CN203339198U CN 203339198 U CN203339198 U CN 203339198U CN 2013204011701 U CN2013204011701 U CN 2013204011701U CN 201320401170 U CN201320401170 U CN 201320401170U CN 203339198 U CN203339198 U CN 203339198U
- Authority
- CN
- China
- Prior art keywords
- welding
- mwt
- welding strip
- battery
- utility
- 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 - Lifetime
Links
Images
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
Landscapes
- Primary Cells (AREA)
Abstract
The utility model discloses a welding strip for welding MWT batteries. The welding strip is a soft welding strip, and the welding strip is sectionally provided with Z-shaped structures, that is to say, the whole soft welding strip comprises linear structures and the Z-shaped structures disposed at intervals. On the premise that a packaging technology for a conventional assembly is not changed, the utility model provides structural design which meets needs of welding of the MWT battery special welding strip.
Description
Technical field
The utility model belongs to crystal silicon solar energy battery and manufactures field, particularly relates to a kind of welding that can be used for welding the MWT battery.
Background technology
Photovoltaic generation is to utilize solar module luminous energy directly to be converted to the generation mode of electric energy, is desirable free of contamination regenerative resource.Solar cell is the Primary Component of realizing the energy conversion of photovoltaic generation, and the conversion efficiency that therefore improves solar cell becomes as the prior development direction in this field.MWT (metal piercing winding) battery is to utilize laser drill the electronics of battery front side collection to be transferred to the technology at the back side, be equivalent to the main grid line of conventional batteries is moved on to the back side, reduced the optical loss of battery surface, increase effective work area of battery, thereby can improve the photoelectric conversion efficiency of solar cell.
The special construction of MWT battery needs new component package technology, its required special sealed in unit and raw material, higher with respect to conventional component package technology and material cost, thereby need to seek the conventional encapsulation technology of application and realize method prepared by the MWT battery component.In the MWT battery structure, the both positive and negative polarity of battery is all at the back side of battery, and when being welded, serial connection is with welding all at cell backside, and welding thermal effect stress can bring warpage issues, and warpage can cause the fragmentation of cell piece, has increased production cost.In order effectively to solve arch sheet problem, reduce fragment rate, introduced special welding structural design in welding MWT cell process, be the effective way that realizes the encapsulation of MWT battery component.
Summary of the invention
The purpose of this utility model, be under the prerequisite that does not change conventional component package technology, and a kind of special welding structural design of MWT battery that can meet the welding needs is provided.
For achieving the above object, the technical solution of the utility model is, a kind of for welding the welding of MWT battery, its for the soft soldering band and wherein subsection setup " Z " character form structure is arranged, whole soft soldering band comprises " Z " character form structure of " one " character form structure and alternate setting.
As a kind of preferred, the width of described soft soldering band is 1.8 ~ 2.2mm, and thickness is 0.12 ~ 0.15mm.
As a kind of preferred, the length of described " Z " font part is 0.8 ~ 1.2cm.
As further preferred, described width is 2mm, thickness 0.13mm; The length of described " Z " font part is 1cm.
The back side design of MWT solar cell generally comprises through hole electrode, back electrode, back of the body electric field.The welding that welds the MWT battery of the present utility model, number and distribution mode according to through hole electrode, thermal stress while welding for reducing has designed 3 " Z " character form structures on every welding for the welding connecting hole electrode, is distributed in the through hole electrode right side in order to eliminate thermal stress.Welding adopts novel soft soldering band, welding width 1.8mm-2.2mm, and wherein the 2mm left and right is optimal design; Welding thickness 0.12mm-0.15mm, wherein take about 0.13mm is optimal design.The Design of length scope 0.8cm-1.2cm of " Z " character form structure part, wherein 1cm is optimal design; According to back electrode number and distribution mode, designed several ' Z ' shapes designs on for the welding that welds back electrode at every, be distributed in the back electrode right side in order to eliminate thermal stress.Compare conventional welding, this novel welding be designed with effect reduction series resistance, improve the fill factor, curve factor of assembly, and then improve the power output of assembly.
Of the present utility model for welding the welding of MWT battery, its special construction design can be produced by compacting by a special equipment, utilize this special welding, can effectively reduce arch sheet, fragment problems that welding process is brought, can realize that the MWT battery manufactures the production of assembly by welding manner.
The utility model has the advantages that: (1) the welding that meets welding MWT battery needs is provided, in the situation that do not change conventional component package technology, realizes the encapsulation of MWT assembly.(2) the preparation of " Z " character form structure welding is simple, and production cost is low, and its special construction design effectively reduces in welding process arch sheet, the fragment problems that thermal effect is brought.
The accompanying drawing explanation
Fig. 1 is a kind of embodiment structural representation of the utility model.
Fig. 2 is that a kind of embodiment of the utility model shown in Fig. 1 is for the MWT battery part sectioned view after welding.
In figure: 1-" " character form structure, 2-" Z " character form structure, the 3-through hole electrode, 4-carries on the back electric field, 5-through hole, 6-matrix.
Below in conjunction with accompanying drawing, the utility model is further described.The correlative technology field staff can carry out reasonably revising and improving in the scope that does not depart from the utility model thought, and its protection range is not limited to the described content of this specification.
Embodiment
Figure 1 shows that a kind of for welding the welding of MWT battery, its for the soft soldering band and wherein subsection setup 3 sections " Z " character form structures 2 are arranged, whole soft soldering band comprises " Z " character form structure 2 of " one " character form structure 1 and alternate setting.Its width is 2mm, thickness 0.13mm; The length of " Z " font part 2 is 1cm.As shown in Figure 2, solar cell matrix 6 is provided with through hole 5, its back side is provided with through hole electrode 3, back electrode, back of the body electric field 4, the utility model Product jointing consisted of 3 " Z " character form structures 2 of " one " character form structure 1 and alternate setting is on battery, in order to be connected in series cell piece, " Z " character form structure 2 is distributed in through hole electrode 3 right sides in order to eliminate thermal stress, and reduces warpage and the fragment of cell piece in welding process.
Claims (5)
1. one kind for welding the welding of MWT battery, it is characterized in that, for the soft soldering band and wherein subsection setup " Z " character form structure is arranged.
2. according to claim 1ly for welding the welding of MWT battery, it is characterized in that, the width of described soft soldering band is 1.8 ~ 2.2mm, and thickness is 0.12 ~ 0.15mm.
3. according to claim 1ly for welding the welding of MWT battery, it is characterized in that, the length of described " Z " font part is 0.8 ~ 1.2cm.
4. according to claim 2ly for welding the welding of MWT battery, it is characterized in that, described width is 2mm, thickness 0.13mm.
5. according to claim 3ly for welding the welding of MWT battery, it is characterized in that, the length of described " Z " font part is 1cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013204011701U CN203339198U (en) | 2013-07-08 | 2013-07-08 | Welding strip for welding MWT batteries |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013204011701U CN203339198U (en) | 2013-07-08 | 2013-07-08 | Welding strip for welding MWT batteries |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203339198U true CN203339198U (en) | 2013-12-11 |
Family
ID=49707858
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013204011701U Expired - Lifetime CN203339198U (en) | 2013-07-08 | 2013-07-08 | Welding strip for welding MWT batteries |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203339198U (en) |
-
2013
- 2013-07-08 CN CN2013204011701U patent/CN203339198U/en not_active Expired - Lifetime
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202049982U (en) | Solar photovoltaic assembly with parallel type battery cell strings | |
| CN203752663U (en) | Solar cell front electrode screen printing plate | |
| CN201374341Y (en) | Solar cell with metalized electrodes | |
| CN207353262U (en) | Crystal silicon solar batteries front electrode graphic structure | |
| CN203339198U (en) | Welding strip for welding MWT batteries | |
| CN203850313U (en) | Solar photovoltaic assembly with three junction box structures | |
| CN205050856U (en) | Cooling type photovoltaic module | |
| CN204230267U (en) | A kind of photovoltaic module with power optimization function | |
| CN207868206U (en) | A kind of more main grid cell pieces | |
| CN202212701U (en) | Heat insulation backing plate for laying | |
| CN202585475U (en) | Long-service-life solar photovoltaic component | |
| CN204289473U (en) | A kind of solar battery sheet grid line structure of positive electrode | |
| CN210692558U (en) | Conventional solder strip welded shingled photovoltaic module | |
| CN203787438U (en) | Solar battery piece | |
| CN209087875U (en) | A kind of 12 main grid photovoltaic cell components | |
| CN203232893U (en) | A light-transparent hollow assembly used in photovoltaic building integration | |
| CN206697509U (en) | A kind of efficiently total-light-reflection solar cell module | |
| CN202025765U (en) | Efficient crystalline silica solar energy cell structure | |
| CN203984343U (en) | A kind of environment-friendly type photovoltaic component terminal box | |
| CN205959993U (en) | Photovoltaic cell can bond | |
| CN207603545U (en) | A kind of double-side cell solar energy frame | |
| CN207320131U (en) | Lamination solar cell module | |
| CN102694141A (en) | Novel aluminum-to-nickel conversion method of flexible packaging lithium ion battery | |
| CN204615746U (en) | A kind of solar module with high reliability | |
| CN203150581U (en) | Solar cell assembly |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131211 |