CN106826011B - The welding method and device of IBC multiple-grid line solar battery sheets - Google Patents
The welding method and device of IBC multiple-grid line solar battery sheets Download PDFInfo
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- CN106826011B CN106826011B CN201611248273.3A CN201611248273A CN106826011B CN 106826011 B CN106826011 B CN 106826011B CN 201611248273 A CN201611248273 A CN 201611248273A CN 106826011 B CN106826011 B CN 106826011B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
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Abstract
The present invention provides a kind of welding method and device of IBC multiple-grids line solar battery sheet, obtains the weld pattern of IBC multiple-grid line solar battery sheets；Path of welding is determined according to weld pattern；Path of welding and weld pattern include pad；Obtain bond pattern and the corresponding welding parameter of bond pattern；Corresponding laser direction is determined according to the location information of each pad of path of welding, and Laser Welding Speed is determined according to welding parameter and goes out light state；Laser is controlled with Laser Welding Speed, the laser direction for each pad for going out light state and path of welding, IBC multiple-grid line solar battery sheets are welded.So, control laser welds IBC multiple-grid line solar battery sheets, since the mode of laser welding is contactless welding manner, therefore, the welding method of the IBC multiple-grid line solar battery sheets and the fragment rate of device are low, and bonding area is small, the contact resistance of obtained IBC multiple-grid line solar battery sheets is small.
Description
Technical field
The present invention relates to solar cell module production field more particularly to a kind of IBC multiple-grids line solar battery sheets
Welding method and device.
Background technology
It needs to connect to form battery component by welding between solar battery sheet, traditional welding method is welded using contact
Connect mode.However, as the constantly thinned, battery grid line of silicon wafer thickness is on the increase, grid line is more and more thinner, contact type welding
The fragment rate of method constantly increases.
Therefore, IBC (Inter digitated Back Contact intersect back contacts) multiple-grid line of traditional contact
The fragment rate of the welding method of solar battery sheet is high.
Invention content
Based on this, it is necessary to provide the welding method and device of the low IBC multiple-grid line solar battery sheets of fragment rate.
A kind of welding method of IBC multiple-grids line solar battery sheet, including：
Obtain the weld pattern of IBC multiple-grid line solar battery sheets；
Path of welding is determined according to the weld pattern；The path of welding and the weld pattern include pad；
Obtain bond pattern and the corresponding welding parameter of the bond pattern；
Corresponding laser direction is determined according to the location information of each pad of the path of welding, and according to described
Welding parameter determines Laser Welding Speed and goes out light state；
Control laser with the Laser Welding Speed, it is described go out light state and the path of welding each pad
Laser direction, the IBC multiple-grids line solar battery sheet is welded.
A kind of welder of IBC multiple-grids line solar battery sheet, including：
Weld pattern acquisition module, the weld pattern for obtaining IBC multiple-grid line solar battery sheets；
Path of welding determining module, for determining path of welding according to the weld pattern；The path of welding and described
Weld pattern includes pad；
Mode parameter acquisition module, for obtaining bond pattern and the corresponding welding parameter of the bond pattern；
Welding manner determining module, the location information for each pad according to the path of welding determine correspondence
Laser direction, and Laser Welding Speed is determined according to the welding parameter and goes out light state；
Welding control execution module, for control laser with the Laser Welding Speed, it is described go out light state and described
The laser direction of each pad of path of welding welds the IBC multiple-grids line solar battery sheet.
The welding method and device of above-mentioned IBC multiple-grids line solar battery sheet obtain IBC multiple-grid line solar battery sheets
Weld pattern；Path of welding is determined according to weld pattern；Path of welding and weld pattern include pad；Obtain bond pattern and
The corresponding welding parameter of bond pattern；Corresponding laser side is determined according to the location information of each pad of path of welding
To, and Laser Welding Speed is determined according to welding parameter and goes out light state；Control laser with Laser Welding Speed, go out light state
And the laser direction of each pad of path of welding, IBC multiple-grid line solar battery sheets are welded.In this way, control
Laser welds IBC multiple-grid line solar battery sheets, since the mode of laser welding is contactless welding manner,
Therefore, the welding method of the IBC multiple-grid line solar battery sheets and the fragment rate of device are low, and bonding area is small, obtained IBC
The contact resistance of multiple-grid line solar battery sheet is small.
Description of the drawings
Fig. 1 is the flow chart of the welding method of the IBC multiple-grid line solar battery sheets of an embodiment；
Fig. 2 is the particular flow sheet of a step of the welding method of the IBC multiple-grid line solar battery sheets of Fig. 1；
Fig. 3 is the particular flow sheet of another step of the welding method of the IBC multiple-grid line solar battery sheets of Fig. 1；
Fig. 4 is the structure chart of the welder of the IBC multiple-grid line solar battery sheets of an embodiment；
Fig. 5 is the structure chart of the welder of the IBC multiple-grid line solar battery sheets of another embodiment；
Fig. 6 is the cellular construction figure of a module of the welder of the IBC multiple-grid line solar battery sheets of Fig. 4 or Fig. 5.
Specific implementation mode
To facilitate the understanding of the present invention, below with reference to relevant drawings to invention is more fully described.In attached drawing
Give the preferred embodiment of the present invention.But the present invention can realize in many different forms, however it is not limited to herein
Described embodiment.Keep the understanding to the disclosure more saturating on the contrary, purpose of providing these embodiments is
It is thorough comprehensive.
Unless otherwise defined, all of technologies and scientific terms used here by the article and belong to the technical field of the present invention
The normally understood meaning of technical staff is identical.Used term is intended merely to description tool in the description of the invention herein
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term as used herein " and/or " include one or more phases
Any and all combinations of the Listed Items of pass.
As shown in Figure 1, the welding method of the IBC multiple-grid line solar battery sheets of one embodiment of the invention, including：
S110：Obtain the weld pattern of IBC multiple-grid line solar battery sheets.
It is obtained first comprising the weld pattern embodied to the welding demand of IBC multiple-grid line solar battery sheets.Welding demand
Including welding range, welded spot pitch, welding pulling force.I.e. weld pattern can embody welding range, welded spot pitch, welding pulling force etc.
Welding demand.
Weld pattern can be indicated by pad.Each pad is indicated by location information；Further, it welds
Figure can also embody spot size, and pad can also include spot size.
Specifically, weld pattern can be drawn by way of receiving user and drawing instruction, and is obtained after completing
Get the weld pattern.The welding figure of IBC multiple-grid line solar battery sheets can also be obtained by way of importing external documents
Shape.
S130：Path of welding is determined according to weld pattern.Path of welding and weld pattern include pad.
According to the distribution mode of each pad in weld pattern, welding is determined by the way of laterally or longitudinally moving
Path.
S150：Obtain bond pattern and the corresponding welding parameter of bond pattern.
Bond pattern includes pulse mode (abbreviation QCW patterns) and continuous mode (abbreviation CW patterns).
Welding parameter includes in the pulsing mode：Laser parameter and scanning galvanometer parameter.Wherein, laser parameter packet
It includes：Defocusing amount, laser power, pulsewidth, laser waveform, the frequency of laser.Scanning galvanometer parameter includes that the empty of scanning galvanometer jumps
Speed, laser open delay, laser closes delay, redirects delay etc..Wherein, defocusing amount, laser power, pulsewidth can determine pulse mode
Welding quality under formula, frequency, empty hop rate degree, laser, which open delay, laser pass is delayed, redirects delay to determine under pulse mode
Speed of welding.
Specifically, defocusing amount is distance of the laser spot between working substance；Pulsewidth (Pulse-Width) is that pulse is wide
The abbreviation of degree, pulse width are exactly high level duration；The speed of scanning galvanometer operation when empty hop rate degree is empty jumps；Laser
It is the time that scanning galvanometer is advanced or delayed before laser opens the light to open delay, can be just or negative, wherein just can be with table
Show that scanning galvanometer postpones before laser opens the light, it is negative to indicate that scanning galvanometer shifts to an earlier date before laser opens the light；It is sharp that laser, which closes delay,
The time that galvanometer is advanced or delayed before the light of light device pass；It redirects when making the adjusting in place of scanning galvanometer motor rest after delay space-time is jumped
Between.
Welding parameter includes under continuous mode：Laser parameter and scanning galvanometer parameter.Wherein, laser parameter includes：
The defocusing amount and laser power of laser.Scanning galvanometer parameter includes：Mark speed, laser open delay, laser closes delay, redirect
Delay, the parameters such as delay of turning round.Wherein, defocusing amount, laser power, mark speed can determine the welding matter under continuous mode
Amount, mark speed, laser open delay, laser closes delay, redirect delay, the welding speed that is delayed and can determine under continuous mode of turning round
Degree.
Specifically, the speed that scanning galvanometer is run when mark speed is mark；Delay of turning round is so that scanning is shaken around the corner
The regulating time of mirror curve movement in place.
In a specific embodiment, the scanning galvanometer parameter under pulse mode and continuous mode can pass through mark or weldering
Software is connect to be configured.
In a wherein specific embodiment, laser is shaken by the optical devices such as optical fiber, beam expanding lens, focus lamp and scanning
Mirror is attached.Since scanning galvanometer has higher repetitive positioning accuracy, can improve the precision of laser positioning ensures to swash
Light non-angular is acted on without offset on welding, and can guarantee the reliability of long-play.
S170：Corresponding laser direction is determined according to the location information of each pad of path of welding, and according to weldering
Parameter is connect to determine Laser Welding Speed and go out light state.
Corresponding laser direction can be determined by the location information of the pad of each in path of welding.It can root
Delay is opened according to the frequency in welding parameter, empty hop rate degree, laser, laser closes and is delayed, redirects swashing under the determining pulse mode of delay
Photocoagulation speed；Delay can be opened according to the mark speed in welding parameter, laser, laser closes delay, redirects delay, turns round and prolong
When determine Laser Welding Speed under continuous mode.Light state can be determined according to the laser power in welding parameter.
S190：Laser is controlled with Laser Welding Speed, the laser for each pad for going out light state and path of welding
IBC multiple-grid line solar battery sheets are welded in direction.
Control laser can be realized with laser welding speed by way of sending corresponding control instruction to laser
The laser direction for spending, going out each pad of light state and path of welding welds IBC multiple-grid line solar battery sheets
It connects.
It should be noted that the mode pad of laser welding is small, can accurately act on thin and thin welding,
It disclosure satisfy that the demand welded to IBC multiple-grid line solar battery sheets.
Laser can be pulse laser, continuous wave laser, can also be YAG (Yttrium Aluminum
Garnet, yttrium-aluminium-garnet) laser and semiconductor laser etc..
The welding method of above-mentioned IBC multiple-grids line solar battery sheet obtains the welding figure of IBC multiple-grid line solar battery sheets
Shape；Path of welding is determined according to weld pattern；Path of welding and weld pattern include pad；Obtain bond pattern and welding mould
The corresponding welding parameter of formula；Corresponding laser direction, and root are determined according to the location information of each pad of path of welding
Laser Welding Speed is determined according to welding parameter and goes out light state；Control laser with Laser Welding Speed, go out light state and welding
The laser direction of each pad in path welds IBC multiple-grid line solar battery sheets.In this way, control laser
IBC multiple-grid line solar battery sheets are welded, since the mode of laser welding is contactless welding manner,
The fragment rate of the welding method of the IBC multiple-grid line solar battery sheets is low, and bonding area is small, the obtained IBC multiple-grid line sun
The contact resistance of energy cell piece is small.
In addition, the welding method of above-mentioned IBC multiple-grids line solar battery sheet, the IBC multiple-grids line sun identical for a batch
Energy cell piece, may be used identical weld pattern, path of welding, bond pattern, welding parameter and obtains identical laser welding
Speed, go out light state and path of welding each pad laser direction.It is therefore convenient to realize identical IBC
The high-volume automated production of multiple-grid line solar battery sheet.
Referring to Fig. 2, in one of the embodiments, in order to allow users to independently select welding region.According to welding
Figure determines the step of path of welding, including：
S231：On the basis of weld pattern, welding region selection instruction is received.
It can be by way of showing weld pattern so that user can input weldering on the basis of the weld pattern of display
Connect regional choice instruction.It can be by the basis of the weld pattern of display, the mode of pad being selected to input welding region
Selection instruction.The mode of selection pad can be the one or more region units of selection, select one or more snippets welding circuit, choosing
It selects one or more in one or more pads.Wherein, one section of welding circuit refers to primary nothing in the lateral or vertical direction
The path that the collection of the nyctitropic pad that moves and can be soldered to is combined into need to be changed.
S233：According to welding region selection instruction, welding region is determined.
According to welding region selection instruction input by user, it may be determined that the welding region welded.It can manage
Xie Di, welding region can be by one or more region units, one or more snippets welding circuit, one or more pads
The set of the pad of one or more compositions.
S235：According to welding region, path of welding is determined.
It, can be according to the distribution mode of pad in welding region, to determine welding section after welding region is determined
The welding sequence of each pad in domain, so that it is determined that path of welding.
Further include step after step S235 in a wherein specific embodiment：Show path of welding；RX path
Modification instruction；Path of welding is redefined according to path modification instruction.In this way, providing a kind of side of modification path of welding to the user
Formula improves the interactivity of the welding method of IBC multiple-grid line solar battery sheets, and user can independently select path of welding, can
More fully to meet user demand.
In a wherein specific embodiment, in order to optimize path of welding, according to welding region, the step of path of welding is determined
Suddenly, including：
(a), according to welding region, initial weld path is determined.
(b), path optimization, the path of welding after being optimized are carried out to initial weld path.
Shortest path principle may be used, initial weld path is optimized.In this way, the path of welding after optimization is most
Short path can save the time of welding.
It is the interactivity for the welding method for improving IBC multiple-grid line solar battery sheets in one of the embodiments,.It obtains
The step of bond pattern and bond pattern corresponding welding parameter, including：
S351：Reception pattern selection instruction, and bond pattern is determined according to mode selection command.
In the present embodiment, user interface can be provided by way of display pattern selection interface.To use
Family can select bond pattern by the model selection interface.It executes terminal and receives what user was inputted by model selection interface
Mode selection command.
S353：Parameter input instruction is received according to bond pattern.
The corresponding parameter input interface of the bond pattern can be shown according to bond pattern, it can be by this thereby using family
The input instruction of parameter input interface input parameter.
S355：Instruction, which is inputted, according to parameter determines welding parameter.
After receiving parameter input instruction input by user, instruction can be inputted according to the parameter and determines welding ginseng
Number.
It is to be appreciated that in other embodiments, the preset bond pattern of acquisition and the side of welding parameter can also be passed through
Formula obtains bond pattern and the corresponding welding parameter of bond pattern.Preset bond pattern and welding parameter can be stored in default
Position, so as to by way of being obtained to predetermined position, get bond pattern and the corresponding welding ginseng of bond pattern
Number.
Include in one of the embodiments, location information and rule to make the diversification of forms of weld pattern, pad
Lattice information；Specification information includes spot size.
Corresponding laser direction is determined according to the location information of each pad of path of welding, and according to welding parameter
The step of determining Laser Welding Speed and going out light state, including：
Corresponding laser direction is determined according to the location information of each pad of path of welding, and according to welding parameter
And spot size determines Laser Welding Speed and goes out light state.
So so that the speed of welding of different pads and go out light state can be different, you can it is different size of to obtain
Pad.That is, the weldering of the IBC multiple-grid line solar battery sheets of the weld pattern including different size of pad can be realized
It connects.
In one of the embodiments, control laser with Laser Welding Speed, go out each of light state and path of welding
The laser direction of a pad, the step of being welded to IBC multiple-grid line solar battery sheets include：
Laser is controlled with Laser Welding Speed, the laser direction for each pad for going out light state and path of welding,
The welding manner being cold worked point by point using part welds IBC multiple-grid line solar battery sheets.In this way, IBC can be prevented more
Grid line solar battery sheet large area heating surface generates buckling deformation.
Referring to Fig. 4, the present invention also provides a kind of corresponding with the above-mentioned welding method of IBC multiple-grids line solar battery sheet
The welder of IBC multiple-grid line solar battery sheets, including：
Weld pattern acquisition module 410, the weld pattern for obtaining IBC multiple-grid line solar battery sheets；
Path of welding determining module 430, for determining path of welding according to weld pattern；Path of welding and weld pattern packet
Include pad；
Mode parameter acquisition module 450, for obtaining bond pattern and the corresponding welding parameter of bond pattern；
Welding manner determining module 470, the location information for each pad according to path of welding determine correspondence
Laser direction, and Laser Welding Speed is determined according to welding parameter and goes out light state；
Welding control execution module 490, for control laser with Laser Welding Speed, go out light state and path of welding
The laser direction of each pad welds IBC multiple-grid line solar battery sheets.
The welder of above-mentioned IBC multiple-grids line solar battery sheet obtains the welding figure of IBC multiple-grid line solar battery sheets
Shape；Path of welding is determined according to weld pattern；Path of welding and weld pattern include pad；Obtain bond pattern and welding mould
The corresponding welding parameter of formula；Corresponding laser direction, and root are determined according to the location information of each pad of path of welding
Laser Welding Speed is determined according to welding parameter and goes out light state；Control laser with Laser Welding Speed, go out light state and welding
The laser direction of each pad in path welds IBC multiple-grid line solar battery sheets.In this way, control laser
IBC multiple-grid line solar battery sheets are welded, since the mode of laser welding is contactless welding manner,
The fragment rate of the welder of the IBC multiple-grid line solar battery sheets is low, and bonding area is small, the obtained IBC multiple-grid line sun
The contact resistance of energy cell piece is small.
In addition, the welder of above-mentioned IBC multiple-grids line solar battery sheet, the IBC multiple-grids line sun identical for a batch
Energy cell piece, may be used identical weld pattern, path of welding, bond pattern, welding parameter and obtains identical laser welding
Speed, go out light state and path of welding each pad laser direction.It is therefore convenient to realize identical IBC
The high-volume automated production of multiple-grid line solar battery sheet.
Referring to Fig. 5, further including in one of the embodiments,：Selection instruction receiving module 521 and welding region determine
Module 525；
Selection instruction receiving module 521, on the basis of weld pattern, receiving welding region selection instruction；
Welding region determining module 525, for according to welding region selection instruction, determining welding region；
Path of welding determining module 530, for according to welding region, determining path of welding.
Path of welding determining module in one of the embodiments, including：
Initial weld path determining unit (not shown), for according to welding region, determining initial weld path；
Optimize path of welding determination unit (not shown), for carrying out path optimization to initial weld path, is optimized
Path of welding afterwards.
Referring to Fig. 6, mode parameter acquisition module includes in one of the embodiments,：
Bond pattern determination unit 651 is used for reception pattern selection instruction, and determines welding mould according to mode selection command
Formula；
Parameter instruction receiving unit 653, for receiving parameter input instruction according to bond pattern；
Welding parameter determination unit 655 determines welding parameter for inputting instruction according to parameter.
Please again refering to Fig. 4, pad includes location information and specification information in one of the embodiments,；Specification is believed
Breath includes spot size；
Welding manner determining module 470, the location information for each pad according to path of welding determine correspondence
Laser direction, and Laser Welding Speed is determined according to welding parameter and spot size and goes out light state.
In one of the embodiments, welding control execution module 490, for control laser with Laser Welding Speed,
The laser direction for going out each pad of light state and path of welding, the welding manner being cold worked point by point using part is to IBC
Multiple-grid line solar battery sheet is welded.
The welding of the welder of above-mentioned IBC multiple-grids line solar battery sheet and above-mentioned IBC multiple-grids line solar battery sheet
Method corresponds to, and therefore, for identical details technical characteristic, does not repeat herein.
Only several embodiments of the present invention are expressed for above example, the description thereof is more specific and detailed, but can not
Therefore it is interpreted as the limitation to the scope of the claims of the present invention.It should be pointed out that for those of ordinary skill in the art,
Without departing from the inventive concept of the premise, multiple modification and improvement can also be made, these belong to the protection model of the present invention
It encloses.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (8)
1. a kind of welding method of IBC multiple-grids line solar battery sheet, which is characterized in that including：
Obtain the weld pattern of IBC multiple-grid line solar battery sheets；
Path of welding is determined according to the weld pattern；The path of welding and the weld pattern include pad；
Obtain bond pattern and the corresponding welding parameter of the bond pattern；
Corresponding laser direction is determined according to the location information of each pad of the path of welding, and according to the welding
Parameter determines Laser Welding Speed and goes out light state；
Control laser with the Laser Welding Speed, it is described go out light state and the path of welding each pad swash
Light direction welds the IBC multiple-grids line solar battery sheet；
Described the step of path of welding is determined according to the weld pattern, including：
On the basis of the weld pattern, welding region selection instruction is received；
According to the welding region selection instruction, welding region is determined；
According to the welding region, path of welding is determined.
2. the welding method of IBC multiple-grids line solar battery sheet according to claim 1, which is characterized in that according to described
Welding region, the step of determining path of welding, including：
According to the welding region, initial weld path is determined；
Path optimization, the path of welding after being optimized are carried out to the initial weld path.
3. the welding method of IBC multiple-grids line solar battery sheet according to claim 1, which is characterized in that the acquisition
The step of bond pattern and the bond pattern corresponding welding parameter, including：
Reception pattern selection instruction, and bond pattern is determined according to the mode selection command；
Parameter input instruction is received according to the bond pattern；
Instruction, which is inputted, according to the parameter determines welding parameter.
4. the welding method of IBC multiple-grids line solar battery sheet according to claim 1, which is characterized in that the welding
Point includes location information and specification information；The specification information includes spot size；
The location information of each pad according to the path of welding determines corresponding laser direction, and according to described
Welding parameter determines Laser Welding Speed and includes the step of going out light state：
Corresponding laser direction is determined according to the location information of each pad of the path of welding, and according to the welding
Parameter and the spot size determine Laser Welding Speed and go out light state.
5. the welding method of IBC multiple-grids line solar battery sheet, feature exist according to any one of claims 1-4
In, the control laser with the Laser Welding Speed, it is described go out light state and the path of welding each pad
Laser direction, the step of being welded to the IBC multiple-grids line solar battery sheet includes：
Control the laser with the Laser Welding Speed, it is described go out light state and the path of welding each pad
Laser direction, the IBC multiple-grids line solar battery sheet is welded using the welding manner that is cold worked point by point of part.
6. a kind of welder of IBC multiple-grids line solar battery sheet, which is characterized in that including：
Weld pattern acquisition module, the weld pattern for obtaining IBC multiple-grid line solar battery sheets；
Path of welding determining module, for determining path of welding according to the weld pattern；The path of welding and the welding
Figure includes pad；
Mode parameter acquisition module, for obtaining bond pattern and the corresponding welding parameter of the bond pattern；
Welding manner determining module corresponding swashs for being determined according to the location information of each pad of the path of welding
Light direction, and Laser Welding Speed is determined according to the welding parameter and goes out light state；
Welding control execution module, for control laser with the Laser Welding Speed, it is described go out light state and the welding
The laser direction of each pad in path welds the IBC multiple-grids line solar battery sheet；
The welder of the IBC multiple-grids line solar battery sheet further includes that selection instruction receiving module and welding region determine
Module；
The selection instruction receiving module, on the basis of the weld pattern, receiving welding region selection instruction；
The welding region determining module, for according to the welding region selection instruction, determining welding region；
The path of welding determining module, for according to the welding region, determining path of welding.
7. the welder of IBC multiple-grids line solar battery sheet according to claim 6, which is characterized in that the welding
Path determination module includes：
Initial weld path determining unit, for according to the welding region, determining initial weld path；
Optimize path of welding determination unit, for carrying out path optimization, the welding after being optimized to the initial weld path
Path.
8. the welder of IBC multiple-grids line solar battery sheet according to claim 6, which is characterized in that the pattern
Parameter acquisition module includes：
Bond pattern determination unit is used for reception pattern selection instruction, and determines bond pattern according to the mode selection command；
Parameter instruction receiving unit, for receiving parameter input instruction according to the bond pattern；
Welding parameter determination unit determines welding parameter for inputting instruction according to the parameter.
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| CN114147359A (en) * | 2021-12-31 | 2022-03-08 | 广东国玉科技有限公司 | Laser welding method and laser welding equipment for lead of square lithium battery |
| CN114310075B (en) | 2022-03-03 | 2022-06-21 | 浙江爱旭太阳能科技有限公司 | Solar cell welding method, cell string, cell assembly and welding equipment |
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