CN207097846U - A kind of welding and stacked wafer moudle - Google Patents
A kind of welding and stacked wafer moudle Download PDFInfo
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- CN207097846U CN207097846U CN201720290005.1U CN201720290005U CN207097846U CN 207097846 U CN207097846 U CN 207097846U CN 201720290005 U CN201720290005 U CN 201720290005U CN 207097846 U CN207097846 U CN 207097846U
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- welding
- thickness
- long side
- stacked wafer
- wafer moudle
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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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Abstract
The utility model provides a kind of welding and stacked wafer moudle, including welding body, and described welding body is strip, and center section offers multiple holes along length, and welding body lateral thickness is step-thickness or graded thickness.The utility model stacked wafer moudle replaces original welding+busbar using graded thickness welding, saves cost.
Description
Technical field
The utility model belongs to technical field of solar batteries, more particularly to a kind of welding and stacked wafer moudle.
Background technology
Solar cell is a kind of device that luminous energy is converted into direct current using photovoltaic effect.According to photoelectricity
The difference of transition material, solar cell include monocrystalline silicon, polysilicon, amorphous silicon membrane, Cadimium telluride thin film, and copper and indium gallium tin is thin
Multiple species such as film, GaAs, fuel sensitization, perovskite, iii-v multijunction cell.Most common of which is the crystalline silicon sun
Energy battery, including monocrystaline silicon solar cell and polysilicon solar cell.
By multiple solar cell electricity interlinkage post packages, obtained photovoltaic apparatus that can be long-term use of, it is referred to as
Photovoltaic module.Cell piece mutual contact mode in Crystalline Silicon PV Module, common are and arrange cell piece order, with containing Copper base material
Tin-coated welding strip as interconnecting strip, interconnecting strip is welded in the front main grid line of first cell piece, the interconnecting strip other end welding
On the back side grid line of second adjacent cell piece.The both ends of second interconnecting strip are being respectively welded at second cell piece just
On the back side grid line of face main gate line and the 3rd cell piece, the like.Thus all cell pieces are connected into a string.
The technology that stacked wafer moudle interconnects using another cell piece.Another battery is placed on by the one of cell piece first
The lower section of piece second so that the positive main grid line electrode of first and the main grid line electrode at the second back side overlap.Between two electrodes
Physical connection is formed using materials such as conducting resinl, welding or tin creams and is conductively connected.
Existing stacked wafer moudle, such as Fig. 1, every a string of battery strings are formed with busbar by welding and are conductively connected, welding and remittance
Stream bar is metal or alloy；But if there is welding rosin joint in this mode connected using busbar, will increase the series electrical of component
Resistance, causes power to reduce；Meanwhile welding is welded with busbar by point type or integral solder, two kinds of welding manners all consume
Long period, reduce production efficiency；Further, busbar after welding welding with needing to be folded to the cell piece back side, busbar
Flexibility is larger, makes the increase of cell piece fragment rate.
Prior art 1
Existing stacked wafer moudle, such as Fig. 2, battery strings head-tail of often going here and there weld welding；Pass through such as Fig. 3, then by the welding on head
Busbar is connected with each other, and welding and busbar are metal or alloy.
Prior art 2
The characteristics of punching welding using one kind, punching welding is that the long side of welding one is used for and welding of battery film, another long side
Welded with busbar, center section is punched, as shown in Figure 4.It is identical with technical scheme 1, this punching welding one end and electricity
Pond piece is welded, such as Fig. 5；The other end is welded with busbar, such as Fig. 6.
As mentioned in the background, cost can be increased using busbar；If this mode connected using busbar
There is welding rosin joint, the series resistance of component will be increased, cause power to reduce；Meanwhile welding is welded with busbar by point type
Or integral solder, two kinds of welding manners all consume the long period, production efficiency is reduced；Further, stacked wafer moudle busbar
Need to be folded to the cell piece back side after welding with welding, busbar flexibility is larger, makes the increase of cell piece fragment rate.
Utility model content
The utility model aims to provide a kind of welding and stacked wafer moudle, and the utility model stacked wafer moudle is welded using graded thickness
Band replaces original welding+busbar, saves cost.
To reach above-mentioned purpose, the technology of preparing scheme that the utility model uses for：
A kind of welding, including welding body, described welding body are strip, and center section offered along length it is more
Individual hole, welding body lateral thickness are step-thickness or graded thickness.
Described welding body includes the first long side, the second long side and connection short side, between the first long side and the second long side
Connected by multiple connection short sides being parallel to each other.
The width of the first described long side is more than the second long side.
The thickness of the first described long side is more than the second long side thickness；The thickness for connecting short side is less than the thickness of the first long side
Or the thickness of connection short side is distributed in ladder.
A kind of stacked wafer moudle, including the battery strings formed, each battery strings end and length are set by multiple cell piece laminations
The welding of strip is connected, and the welding end in adjacent battery strings is welded and fixed；Described welding includes welding body, welding sheet
Side face thickness is step-thickness or graded thickness, and the thin side of welding body thickness is connected with battery strings.
Described welding body center section offers multiple holes along length.
Described welding body includes the first long side, the second long side and connection short side, between the first long side and the second long side
Connected by multiple connection short sides being parallel to each other.
The width of the first described long side is more than the second long side.
The thickness of the first described long side is more than the second long side thickness；The thickness for connecting short side is less than the thickness of the first long side
Or the thickness of connection short side is distributed in ladder.
Relative to prior art, the utility model has following benefit：
Welding of the present utility model uses open-celled structure, and cost-effective while, overlap joint welding is simple, meets laminated battery
The welding requirements in pond.
The utility model stacked wafer moudle replaces original welding+busbar using graded thickness welding, saves cost；It is existing
Technology welds busbar with welding one by one, consumes the long period, and welding is directly overlapped and welded by the utility model stacked wafer moudle,
It is greatly saved the working time；The utility model stacked wafer moudle only has a pad between string and string, reduces the risk of rosin joint；
The utility model stacked wafer moudle without using busbar thus bending when more convenient operation, reduce turnover operation difficulty.
Brief description of the drawings
Fig. 1：Existing stacked wafer moudle schematic diagram；
Fig. 2：Existing stacked wafer moudle and welding welding schematic diagram；
Fig. 3：Existing stacked wafer moudle and welding welding and busbar connection procedure schematic diagram；
Fig. 4：Punch welding structural representation；
Fig. 5：Punching welding one end is fixedly connected with process schematic with cell piece；
Fig. 6：Punch welding and cell piece, busbar connection procedure structure chart；
Fig. 7 a：The first eyelet welding band front view；
Fig. 7 b：The first eyelet welding band left view；
Fig. 7 c：Second of eyelet welding band front view；
Fig. 7 d：Second of eyelet welding band left view；
Fig. 8：Eyelet welding band of the present utility model and battery connection procedure schematic diagram；
Fig. 9：Two battery strings connection diagrams of the present utility model；
Figure 10：The multiple battery strings of the utility model use the side view that scheme one connects；
Figure 11：The multiple battery strings of the utility model use the side view that scheme two connects；
Figure 12：The utility model uses the outside drawing of graded thickness welding；
Wherein, 1 is stacked wafer moudle, and 2 be busbar, and 3 be welding, and 4 be welding body, and 4-1 is step-thickness, and 4-2 is ladder
Thickness is spent, a is the first long side, and b is connection short side, and c is the second long side, and d is hole.
Embodiment
As shown in Fig. 7 a-7d, a kind of welding structure of the present utility model, it includes welding body 4, and welding body 4 is length
Strip, and center section offers multiple hole d along length, the lateral thickness of welding body 4 is step-thickness 4-1 or graded thickness
4-2。
Specifically, welding body 4 includes the first long side a, the second long side c and the length of connection short side b, the first long side a and second
Pass through multiple connection short side b connections being parallel to each other between the c of side.First long side a width is more than the second long side c.First long side a
Thickness be more than the second long side c, and thickness is distributed in step-thickness or graded thickness.
The welding of this graded thickness is a kind of punching welding, and two-end thickness is different, the head of every a string of the battery strings of stacked wafer moudle
Tail welds one end of the welding of the graded thickness, and the second long side c is used for and battery strings are fixed, such as Fig. 8；Then, lead between often going here and there
The other end for crossing welding is mutually overlapped and welded and is attached, such as Fig. 9；Further, the graded thickness welding two-end thickness is not
Together, close to cell piece one end thickness of thin, thick away from cell piece one end thickness, the welding can be step-thickness, itself and battery strings
Connection such as Figure 10；Can also graded thickness, its connection such as Figure 11 with battery strings.The utility model uses graded thickness welding
Outside drawing such as Figure 12.
The utility model does not use busbar, reduces cost；The next rosin joint of busbar welded bands is eliminated simultaneously and is connect
Get an electric shock and hinder, improve component efficiency；Once, production efficiency is greatly improved in spot welding after mutually being overlapped between welding；Further,
When bending upset, difficulty is lower.
The utility model stacked wafer moudle replaces existing busbar by using graded thickness or step-thickness welding,
Reduce cost and improve production efficiency.Key point is to integrate welding and busbar, is realized by graded thickness.
More than, preferred embodiment only of the present utility model, it is not limited only to practical range of the present utility model, Fan Yiben
The equivalence changes and modification that the content of utility model patent scope is done, it all should be technology category of the present utility model.
Claims (9)
1. a kind of welding, it is characterised in that including welding body (4), described welding body (4) is strip, and pars intermedia
Divide along length and offer multiple holes (d), welding body (4) lateral thickness is step-thickness (4-1) or graded thickness (4-2).
2. a kind of welding according to claim 1, it is characterised in that described welding body (4) includes the first long side
(a), the second long side (c) and connection short side (b), pass through multiple companies being parallel to each other between the first long side (a) and the second long side (c)
Connect short side (b) connection.
3. a kind of welding according to claim 2, it is characterised in that the width of the first described long side (a) is more than second
Long side (c).
4. a kind of welding according to claim 2, it is characterised in that the thickness of the first described long side (a) is more than second
Long side (c) thickness；It is in ladder that the thickness of connection short side (b), which is less than the thickness of the first long side (a) or the thickness of connection short side (b),
Distribution.
5. a kind of stacked wafer moudle, it is characterised in that including setting the battery strings formed, each battery strings by multiple cell piece laminations
The welding of end and strip is connected, and the welding end in adjacent battery strings is welded and fixed；Described welding includes welding sheet
Body (4), welding body (4) lateral thickness are step-thickness (4-1) or graded thickness (4-2), welding body (4) thickness of thin
Side is connected with battery strings.
A kind of 6. stacked wafer moudle according to claim 5, it is characterised in that described welding body (4) center section edge
Length offers multiple holes (d).
7. a kind of stacked wafer moudle according to claim 5, it is characterised in that described welding body (4) includes the first length
Side (a), the second long side (c) and connection short side (b), are parallel to each other by multiple between the first long side (a) and the second long side (c)
Connect short side (b) connection.
8. a kind of stacked wafer moudle according to claim 7, it is characterised in that the width of the first described long side (a) is more than
Second long side (c).
9. a kind of stacked wafer moudle according to claim 7, it is characterised in that the thickness of the first described long side (a) is more than
Second long side (c) thickness；Connection short side (b) thickness be less than the first long side (a) thickness or connection short side (b) thickness be in
Ladder is distributed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720290005.1U CN207097846U (en) | 2017-03-23 | 2017-03-23 | A kind of welding and stacked wafer moudle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720290005.1U CN207097846U (en) | 2017-03-23 | 2017-03-23 | A kind of welding and stacked wafer moudle |
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| Publication Number | Publication Date |
|---|---|
| CN207097846U true CN207097846U (en) | 2018-03-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720290005.1U Active CN207097846U (en) | 2017-03-23 | 2017-03-23 | A kind of welding and stacked wafer moudle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111482692A (en) * | 2020-03-16 | 2020-08-04 | 晶澳（扬州）太阳能科技有限公司 | Welding pressing strip and welding system for welding battery string bus bar |
-
2017
- 2017-03-23 CN CN201720290005.1U patent/CN207097846U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111482692A (en) * | 2020-03-16 | 2020-08-04 | 晶澳（扬州）太阳能科技有限公司 | Welding pressing strip and welding system for welding battery string bus bar |
| CN111482692B (en) * | 2020-03-16 | 2021-07-16 | 晶澳（扬州）太阳能科技有限公司 | Welding pressing strip and welding system for welding battery string bus bar |
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