CN204771023U - Automatic series welding machine of solar battery subassembly - Google Patents
Automatic series welding machine of solar battery subassembly Download PDFInfo
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- CN204771023U CN204771023U CN201520537685.3U CN201520537685U CN204771023U CN 204771023 U CN204771023 U CN 204771023U CN 201520537685 U CN201520537685 U CN 201520537685U CN 204771023 U CN204771023 U CN 204771023U
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Abstract
The utility model provides an automatic series welding machine of solar battery subassembly, which comprises a bender frame body, set gradually on the frame body by the magazine, detect that position and scaling powder spraying device form get material detecting element, be used for the battery piece preheats before the welding the unit that intensifies in advance, by weld the area lay the welding unit that device and welding set form and weld after the cooling collector unit, its characterized in that: the unit that heaies up in advance contains that the platform is preheated to set gradually first, the second preheats the platform and the third preheats the platform, welding set in the welding unit is contactless electromagnetic induction welding set.
Description
Technical field
The utility model belongs to automatic welding device technical field, is specifically related to a kind of solar module automatic string welding machine.
Background technology
Past, for the welding of solar cell series connection, because of domestic human cost relative moderate, most of assembly manufacturer is more ready to adopt human weld, but human weld is easily because the temperature of welding stage, the factor such as coating, the temperature of electric iron, the qualification of personnel of scaling powder cause bad welding, though some aspect solves by effectively managing, and most of situation cannot control completely, and failure welding is the major reason causing assembly premature failure.The projected life of existing solar photovoltaic assembly is 25 years, and assembly is all arranged on open air usually, will bear the variations in temperature of about 30 DEG C every day, adds that the change of seasonal law temperature is larger.Because welding base material is fine copper, the coefficient of expansion of copper is about 6 times of silicon (cell piece), as long as this species diversity means the change having temperature, welding and welding of battery film place will be stressed, therefore bad welding can cause component power to reduce, and causes losing efficacy time serious.
In recent years, along with the domestic and international demand to clean energy resource increases day by day, the demand of photovoltaic module is also increasing fast, and for ensureing the reliability of production capacity and assembly, more multicompartment production firm starts the full-automatic series welding machine paying close attention to solar battery sheet.The complete dependence on import of this type of series welding machine before, price is very high, and the series welding machine of production capacity 600 slices/hour, about need 3,000,000 RMB, then price is higher for the equipment of high production capacity.Started from 2010, domesticly occurred domestic series welding machine, price is only 1/3rd or lower of import equipment, superior cost performance, makes assembly production firm use series welding machine to become possibility on a large scale.But the following problem of current domestic series welding machine ubiquity: preheat poor controllability 1, before welding, causes the preheat temperature of cell piece before formal welding lower, its rapid temperature increases when welding and damage is caused to cell piece; 2, welding manner tradition, speed of welding and reliability have to be hoisted; 3, after having welded for the cooling of cell piece and collection technique perfect not to the utmost.
Utility model content
For overcoming above-mentioned prior art defect, the purpose of this utility model is to provide solar module automatic string welding machine, makes it be configured with multiple pre-intensification platform, and adopts contactless electromagnetic induction solder technology, be configured with perfect cooling collector unit simultaneously.
For realizing above-mentioned technical purpose, the utility model adopts following technical scheme:
A kind of solar module automatic string welding machine, comprise frame body, described frame body is disposed be made up of magazine, detecting position and Welding compound spraying coater feeding detecting unit, for weld the pre-intensification unit of front cell piece preheating, the welding unit be made up of welding laying apparatus and welder and welding after cooling collector unit, it is characterized in that: described pre-intensification unit comprises the first pre-heating station, the second pre-heating station and the 3rd pre-heating station that set gradually, and the welder in described welding unit is contactless electromagnetic induction welder.
Preferably, described feeding detecting unit also comprises conveying robot, realizes the movement of material between each assembly of feeding detecting unit and pre-intensification unit by conveying robot;
Preferably, described cooling collector unit comprises battery strings turn-over collecting mechanism, and is arranged at the slow cooling area between described battery strings turn-over collecting mechanism and welder, and the workbench in wherein said battery strings turn-over collecting mechanism is configured to heating station.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model structure and operation principle are elaborated.
As shown in Figure 1, this solar module automatic string welding machine comprises frame body 1, frame body 1 is disposed with the feeding detecting unit be made up of magazine 4 and detecting position 3, comprise the first pre-heating station 5 set gradually, the pre-intensification unit of the second pre-heating station 6 and the 3rd pre-heating station 7, by being configured with for the welding unit aligned and the welding laying apparatus 9 of cutting mechanism 11 and welder 8 form, welder 8 adopts contactless electromagnetic induction welder, and the cooling collector unit 10 after welding, this cooling collector unit 10 comprises the battery strings turn-over collecting mechanism 12 being configured with heating station, and the slow cooling area 13 be arranged between battery strings turn-over collecting mechanism 12 and welder, wherein in feeding detecting unit, each assembly and same heat up in advance unit, welding unit realize the movement of material each other by welding laying apparatus 9, and the cell piece after welding moves to cooling collector unit via band to band transfer module.
During work, whole series welding process comprises: 1, feeding; 2, cell piece outward appearance and grid line detect; 3, scaling powder is sprayed; 4, first time heats up in advance; 5, second time heats up in advance; 6, third time pre-intensification and welding are laid; 7, high-frequency electromagnetic induction welding; 8, slow cooling; 9, battery strings turn-over is collected.Wherein:
Feeding: for ensureing soft reliably to be taken out by the cell piece in battery case, adopting compressed air layering, coordinating soft silicon rubber sucker, under manipulator behavior accurately, reliably and with no damage sends cell piece into workspace;
Detect: in detection, cell piece last process can not being detected open defect and main gate line printing exception shifts out;
Spraying scaling powder: adopt contactless scaling powder spraying mode, scaling powder can be made accurately to spray to the position of needs, for reliably welding provides safeguard;
Pre-intensification: the temperature improving welding bench, can reduce the breakage of cell piece in welding, but when welding bench temperature is too high, welding personnel cannot operate; And the preheat temperature of the utility model to cell piece is divided into three intensifications in advance, and temperature is controlled, the existing temperature more than 100 DEG C before formal welding, more close to welding temperature, farthest reduces Yin Wendu and rises to the damage of cell piece fast;
Welding is laid: welding cuts by after mechanical arm alignment before laying, and length is accurate, and good looking appearance after welding, after welding and cell piece lay, enters welding process;
Contactless electromagnetic induction welding: welding sequence is most important articulating in module production process, in human weld's process, the translational speed of electric iron is uncontrollable, vary with each individual, too fast or the irregular meeting of speed of translational speed causes not prison welding and solder side to reduce, for increasing work efficiency, the weld interval of the general every bar welding of skilled worker is about 2-3 second.Calculate by 3 seconds every bar welding used times as welded 156 millimeters of cell pieces, the time of every mm length flatiron movement is only 0.019 second, the width of solder horn contact welding is about 5 millimeters, 5*0.019 second is 0.095 second, that is the time that scolding tin maintenance is melted often puts and is only 0.1 second, too short owing to melting the retention time, the reliability of therefore welding is difficult to ensure; Another drawback of human weld is that single weldering series welding completes respectively, cell piece meeting temperature distortion twice, when monolithic welds, because only have the welding in front, after welding, the stress difference on cell piece two sides causes cell piece flexural deformation, series connection welding cell piece can be subject to flexural deformation equally, significantly increases the hidden of cell piece and splits chance; And the utility model adopts brand-new mode, change all drawbacks of manual welding in the past, single, series welding are combined, welding temperature can be monitored, thus the welding quality of cell piece is given ensure more reliably, it utilizes high-frequency alternating magnetic field in metal, produce vortex flow heating and weld, in field region, welding, cell piece positive and negative main gate line all can be generated heat, and can weld double-edged welding simultaneously.Owing to being the electrode heating of welding and cell piece, so high frequency induction welding is connected in all welding manners, have minimum heat " inertia ", namely after heating is closed, the intensification of cell piece stops immediately, thus controls to give security for the temperature in welding process.Due to electromagnetic induction heating, then coordinate the infrared temperature sensor of response speed up to 25 milliseconds, the temperature in whole welding process is controlled within relative accuracy is for ± 3 DEG C.Control the slope heated up, the damage to cell piece can be reduced.Even if the thickness of cell piece is different, also keeping same intensification slope, preventing thinner cell piece from causing damaging because heating up too fast.Usually, have the temperature retention time of 0.3-0.5 second after being heated to welding temperature, the thawing retention time of scolding tin exceedes 3 times more than of human weld (0.1 second), and uniformity, the uniformity of every sheet welding of battery film are all better than human weld, breakage rate≤2 ‰;
Slow cooling: after battery strings welds, cool the internal stress of generation rapidly to eliminate welding and cell piece, series welding machine is also provided with slow cooling area, and cooling is the process that declines gradually, thus more conforms to the requirement of welding procedure;
Battery strings turn-over collect: due in welding process in order to protect the front in battery face; so the front of the good rear cell piece of welding is upwards; because cell piece is frangible; in order to the laying operation of postorder; spy set up turn-over mechanism; avoid causing unnecessary loss during artificial turn-over, for reducing environment temperature to the impact of battery strings, the workbench putting battery strings is configured to as heating station by the utility model in this element.
Claims (3)
1. a solar module automatic string welding machine, comprise frame body, described frame body is disposed be made up of magazine and detecting position feeding detecting unit, for welding the pre-intensification unit of front cell piece preheating, the welding unit be made up of welding laying apparatus and welder and the cooling collector unit after welding, it is characterized in that: described pre-intensification unit comprises the first pre-heating station, the second pre-heating station and the 3rd pre-heating station that set gradually, and the welder in described welding unit is contactless electromagnetic induction welder.
2. a kind of solar module automatic string welding machine according to claim 1, is characterized in that: described welding laying apparatus is configured with for aligning and the mechanism of cutting.
3. a kind of solar module automatic string welding machine according to claim 1, it is characterized in that: described cooling collector unit comprises battery strings turn-over collecting mechanism, and the slow cooling area be arranged between described battery strings turn-over collecting mechanism and welder, the workbench in wherein said battery strings turn-over collecting mechanism is configured to heating station.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520537685.3U CN204771023U (en) | 2015-07-23 | 2015-07-23 | Automatic series welding machine of solar battery subassembly |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520537685.3U CN204771023U (en) | 2015-07-23 | 2015-07-23 | Automatic series welding machine of solar battery subassembly |
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| CN204771023U true CN204771023U (en) | 2015-11-18 |
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| CN201520537685.3U Active CN204771023U (en) | 2015-07-23 | 2015-07-23 | Automatic series welding machine of solar battery subassembly |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105689835A (en) * | 2016-03-22 | 2016-06-22 | 佛山市三水中天星实业有限公司 | Crystal silicon cell piece welding device and string welding machine with crystal silicon cell piece welding device |
| CN105689836A (en) * | 2016-03-22 | 2016-06-22 | 佛山市三水中天星实业有限公司 | Fully-automatic string welding machine for crystal silicon cell pieces |
| CN105904125A (en) * | 2016-06-08 | 2016-08-31 | 广东科杰机械自动化有限公司 | Preheating and transferring platform |
| CN106001962A (en) * | 2016-06-17 | 2016-10-12 | 厦门大学 | Solar battery piece welding heating and welding strip fixing method and device |
| CN106975811A (en) * | 2016-01-19 | 2017-07-25 | 苏州沃特维自动化系统有限公司 | Cell piece series welding technique and its cell piece screening bonding machine |
-
2015
- 2015-07-23 CN CN201520537685.3U patent/CN204771023U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106975811A (en) * | 2016-01-19 | 2017-07-25 | 苏州沃特维自动化系统有限公司 | Cell piece series welding technique and its cell piece screening bonding machine |
| CN105689835A (en) * | 2016-03-22 | 2016-06-22 | 佛山市三水中天星实业有限公司 | Crystal silicon cell piece welding device and string welding machine with crystal silicon cell piece welding device |
| CN105689836A (en) * | 2016-03-22 | 2016-06-22 | 佛山市三水中天星实业有限公司 | Fully-automatic string welding machine for crystal silicon cell pieces |
| CN105904125A (en) * | 2016-06-08 | 2016-08-31 | 广东科杰机械自动化有限公司 | Preheating and transferring platform |
| CN105904125B (en) * | 2016-06-08 | 2018-06-19 | 广东科杰机械自动化有限公司 | A kind of preheating intermediate station |
| CN106001962A (en) * | 2016-06-17 | 2016-10-12 | 厦门大学 | Solar battery piece welding heating and welding strip fixing method and device |
| CN106001962B (en) * | 2016-06-17 | 2018-08-21 | 厦门大学 | A kind of solar battery sheet weld heating and the fixed method and device of welding |
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