CN105352877A - Hot and humid detection method for photovoltaic solder strip - Google Patents

Hot and humid detection method for photovoltaic solder strip Download PDF

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Publication number
CN105352877A
CN105352877A CN201510755688.9A CN201510755688A CN105352877A CN 105352877 A CN105352877 A CN 105352877A CN 201510755688 A CN201510755688 A CN 201510755688A CN 105352877 A CN105352877 A CN 105352877A
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ribbon
solder strip
carried out
method
pv
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CN201510755688.9A
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Chinese (zh)
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高慧慧
孙杰
高杨
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江西瑞晶太阳能科技有限公司
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Publication of CN105352877A publication Critical patent/CN105352877A/en

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Abstract

The invention provides a hot and humid detection method for a photovoltaic solder strip. The method is carried out according to the following flows: firstly, a solder strip is selected; secondly, resistance detection is carried out, and the detected resistance R1 is recorded; thirdly, pretreatment of the solder strip is carried out; fourthly, the pretreated solder strip is placed in an environmental box for 1-20 days at a temperature of 45DEG C-85DEG C and at a RH of 60%-80%; fifthly, the solder strip is taken out from the environmental box, resistance detection of the solder strip is carried out, and the detected resistance R2 is recorded; sixthly, appearance detection is carried out; seventhly, evaluation is carried out, namely, performance and appearance evaluation of the detected solder strip is carried out, and when the two kinds of evaluation are qualified, the product is qualified. The beneficial effects of the method are that an effective method is provided for detection of a photovoltaic solder strip; the method is simple to implement, and the cost is low; failure risks of a finished product assembly caused by an unqualified solder strip are avoided.

Description

一种光伏焊带的湿热检测方法 Wet heat method for detecting a photovoltaic ribbon

[0001] 技术领域:本发明涉及一种对焊带质量的检测方法,特别是一种光伏焊带的湿热检测方法。 [0001] Technical Field: relates to a method for quality testing of ribbons of the present invention, in particular heat detection method of a photovoltaic ribbon.

[0002] 现有技术:由于光伏行业发展的时间短,其原材料、部件及产品各方面的质量检测还不是很完善,尤其是光伏焊带(所述光伏焊带是指镀锡铜带或涂锡铜带,是由15〜40μπι厚的锡层包裹的铜带制成,应用于光伏电池片的连接,主要作用是传输电流。)方面的检测非常薄弱,直至目前都没有专门针对光伏焊带的可靠性检测方法。 [0002] The prior art: because of the short time development of PV industry, which raw materials, components and product quality testing all aspects is not perfect, especially PV ribbon (refer to the PV ribbon coated tinned copper strip or tin copper strip, is wrapped 15~40μπι made thick layer of tin copper tape, used to connect the photovoltaic cells, the main role is the transmission current detection) areas very weak, up to now no specific PV ribbon the reliability of the detection method. 由于该种现状所导致的问题是:现有不少光伏电站在建成后,产生大量因焊带质量不过关,而使得不少光伏组件出现发黄、发黑且被严重腐蚀的情况,这些状况影响着光伏组件的外观和组件的发电量,严重的还会产生热斑效应或导致组件失效。 Since this problem is caused by species status: Many existing photovoltaic plant after construction, with a large amount of low quality because of welding, so that many of the photovoltaic module yellow, and black is where severe corrosion occurs, these conditions power generation affects the appearance of PV modules and components, will produce serious hot spot effect or lead to component failure.

[0003] 发明内容:本发明的目的在于,针对现有光伏行业在光伏焊带检测方面所存在的问题,而提出一种光伏焊带的湿热检测方法,该方法可在短时间内评估焊带的耐腐蚀,耐高低温性能,可有效预防组件在后期的发电过程中因焊带腐蚀所导致的失效。 [0003] SUMMARY OF THE INVENTION: The object of the present invention is that the existing photovoltaic industry in terms of PV ribbon detecting the problems, proposed a method for detecting heat PV ribbon, the method can be assessed in a short time with welding corrosion resistance, high temperature performance, which can effectively prevent generation later during assembly welding failure due to corrosion caused by the belt.

[0004] 通过下述技术方案可实现本发明的目的,一种光伏焊带的湿热检测方法,其特征在于,它按如下流程进行:1、选取焊带尺寸为:宽0.5mm〜1.8mm,厚0.1mm〜0.3mm,长0.01〜10m光伏焊带进行外观检查,看有无发黄、发黑、起皮、剥落、鼓泡、开裂、龟裂等现象,若有,则为不合格,没有,进入下一流程;2、进行电阻检测,将所测电阻值&记录下来;3、将该焊带预处理;4、将预处理后的焊带放入45°C〜85°C,60 %〜85 % RH的环境箱中1〜20天;5、将焊带从环境箱中取出,进行焊带的电阻检测,将所测电阻值&记录下来;6、进行外观检查;7、评测:计算:n = (r2—叫/%*100%,如果η <5%,则该光伏焊带测试的电性能合格;相反,则不合格;如果在第6程序焊带没有发黄、发黑、起皮、剥落、鼓泡、开裂、龟裂的现象,则外观合格;相反,则不合格;只有电性能和外观二项都合 [0004] The object of the following technical scheme of the present invention can be achieved by a method for detecting heat PV ribbon, characterized in that it is carried out according to the following procedure: 1. Select the ribbon dimensions: width 0.5mm~1.8mm, thick 0.1mm~0.3mm, PV ribbon length 0.01~10m visual inspection to see whether yellow, black, peeling, flaking, bubbling, cracking, cracking and other phenomena, if any, was unacceptable, no, the process proceeds to the next; 2, for detecting the resistance, the resistance value of the measured & recorded; 3, the ribbon pretreatment; 4, after the pretreatment of the solder into the 45 ° C~85 ° C, environmental chamber 60% ~85% RH of 1~20 days; 5, the ribbon is removed from the environmental chamber, for detecting the resistance welding strip, the measured resistance value & recorded; 6, visual inspection; 7, evaluation: calculated: n = (r2- called /% * 100%, if η <5%, the electrical performance of the photovoltaic ribbon qualified test; the contrary, the failure; 6 if the program is not yellow ribbon, black, peeling, flaking, bubbling, cracking, cracking phenomenon, the appearance of compliance; the contrary, it failed; only the electrical properties and appearance of the two are together 格,焊带才定为合格。 Grid, ribbon was deemed acceptable.

[0005] 第三程序的预处理是指:直接将焊带浸泡在2%〜20%的氯化钠溶液中,浸泡0.01 〜24ho Pretreatment [0005] The third program means: directly ribbons soaked in ~ 20% of 2% sodium chloride solution, soaking 0.01 ~24ho

[0006] 本发明的效果在于:1、该方法弥补了光伏焊带检测手段上的缺陷,为光伏焊带的检测提供了有效的方法;2、该方法实施简单,成本低,可较好的评估焊带在组件中使用的长期可靠性;3、避免了成品组件因焊带不合格而导致的失效风险,为光伏电站建成后的稳定安全运行提供了保障。 [0006] The effect of the present invention is: 1, which make up the PV ribbon defect detection means, to provide an effective method for the detection of PV ribbon; 2, the method is simple to implement, low cost, good assessment of ribbon used in the assembly of the long-term reliability; 3, to avoid the risk of failure due to solder components finished with a result of failure to provide a guarantee for the stable and secure operation after the completion of photovoltaic power plants.

具体实施方式 Detailed ways

: :

[0007] 实施例1,一种光伏焊带的湿热检测方法,⑴、选取截面为1.6mm*0.25mm,长度为0.5m光伏焊带,对该段焊带进行外观检查,没有发黄、发黑、起皮、剥落、鼓泡、开裂、龟裂等现象;(2)、用低电阻测试仪测试该段光伏焊带的电阻值为札=28.8mΩ ; (3)、将测试完成的焊带放入3%的氯化钠溶液中浸泡5min,采用该方法可将加速焊带的腐蚀,缩短测试时间;⑷、取出上述焊带放在85°C、85% RH的环境箱中7天;(5)、从环境箱中取出焊带,进行该段焊带的电阻测试,测试值为R2= 29.lmQ ;(6)、计算:η = (R^)/^*100% = 1.04%,η < 5%,则该光伏焊带测试的电性能合格;检查该段焊带的外观,没有发黄、发黑、起皮、剥落、鼓泡、开裂、龟裂的现象,测试结果合格;该光伏焊带电性能和外观合格测试均合格,可定为合格。 [0007] Example 1, a photovoltaic heat welding method for detecting tape, ⑴, selecting section 1.6mm * 0.25mm, a length of 0.5m PV ribbon, the ribbon segment visual inspection, no yellowing, hair black, peeling, flaking, bubbling, cracking, cracking phenomenon; (2), with a low resistance tester resistance of the segment values ​​PV ribbon sheaf = 28.8mΩ; (3), the test is completed weld with 3% NaCl solution into the soaking 5min, this method can accelerate corrosion of ribbons, shortening the testing time; ⑷, ribbon taken out on 85 ° C, an environmental chamber and 85% RH for 7 days ; (5), remove the ribbon from the environmental chamber, the electric resistance of the test section of the ribbon, the test value R2 = 29.lmQ; (6), is calculated: η = (R ^) / ^ * 100% = 1.04 %, η <5%, the electrical performance of the photovoltaic ribbon qualified test; check the appearance of the section of ribbon, not yellow, black, peeling, flaking, bubbling, cracking, cracking phenomenon, test results Eligible; charging performance of the photovoltaic weld qualification tests are qualified and appearance, can be set as acceptable.

[0008] 实施例2,一种光伏焊带的湿热检测方法,(1)、选取截面为1.3mm*0.25mm长度为lm的光伏焊带,对该段焊带进行外观检查,没有发黄、发黑、起皮、剥落、鼓泡、开裂、龟裂等现象;(2)、用低电阻测试仪测试该段光伏焊带的电阻值为R1 = 69.8mΩ ; (3)、将测试完成的焊带放入5%的氯化钠溶液中浸泡2h,采用该方法可将加速焊带的腐蚀,缩短测试时间;(4)、取出上述焊带放在65°C、85% RH的环境箱中15天;(5)、从环境箱中取出焊带,进行该段焊带的电阻测试,测试值为R2 = 70.ΙιήΩ ;(6)、计算:η = (^-^)/^*100%= 0.43%〈5%,该光伏焊带测试的电性能合格;检查该段焊带的外观,未发现有发黄、发黑、起皮、剥落、鼓泡、开裂、龟裂的现象,该光伏焊带湿热测试外观合格;两项测试均合格,该光伏焊带合格。 [0008] Example 2 A method for detecting heat of PV ribbon (1), selecting section 1.3mm * 0.25mm PV ribbon length of lm, a visual inspection of the ribbon segment, no yellowing, black, peeling, flaking, bubbling, cracking, cracking phenomenon; (2), with a low resistance tester resistance of the PV ribbon segment value R1 = 69.8mΩ; (3), the completion of the test ribbon into 5% sodium chloride solution soak 2h, this method can accelerate corrosion of ribbons, shortening the test time; (4), taken out on the ribbon 65 ° C, 85% RH environmental chamber 15 days; (5) removed from the environmental chamber with welding, electric resistance welding with the segment of the test, the test value R2 = 70.ΙιήΩ; (6), is calculated: η = (^ - ^) / ^ * = 0.43% 100% <5%, the electrical properties of the PV ribbon qualified test; check the appearance of the ribbon segment, showed no yellow, black, peeling, flaking, bubbling, cracking, cracking phenomenon the damp heat test PV ribbon appearance of compliance; passing both tests, the qualified PV ribbon.

[0009] 实施例3,一种光伏焊带的湿热检测方法,(1)、选取截面为1.6mm*0.23mm长度为3m的光伏焊带,对该段焊带进行外观检查,没有发黄、发黑、起皮、剥落、鼓泡、开裂、龟裂等现象;⑵、用低电阻测试仪测试该段光伏焊带的电阻值为R1 = 186.5mΩ ;⑶、将测试完成的焊带放入10%的氯化钠溶液中浸泡10h,采用该方法可将加速焊带的腐蚀,缩短测试时间; [0009] Example 3 A method for detecting heat of PV ribbon (1), selecting section 1.6mm * 0.23mm PV ribbon length of 3m, a visual inspection of the ribbon segment, no yellowing, black, peeling, flaking, bubbling, cracking, cracking phenomenon; ⑵, low resistance tester with the resistance of the segment of the PV ribbon R1 = 186.5mΩ; ⑶, the ribbon into the completed test 10% sodium chloride solution soak 10H, this method can accelerate corrosion of ribbons, shortening the testing time;

(4)、取出上述焊带放在65°C、65% RH的环境箱中18天;(5)、从环境箱中取出焊带,进行该段焊带的电阻测试,测试值为R2 = 190.8mΩ ;(6)、计算:n = (^-¾)/^*100% = 2.31%〈5%,该光伏焊带测试的电性能合格;检查该段焊带的外观,发现光伏焊带明显发黑,外观不合格,该光伏焊带电性能合格,但外观不合格,定为不合格。 (4) is taken out on the ribbon 65 ° C, 65% RH environmental chamber for 18 days; (5), remove the ribbon from the environmental chamber, the electric resistance of the test section of the ribbon, R2 = test value 190.8mΩ; (6), is calculated: n = (^ -¾) / ^ * 100% = 2.31% <5%, the electrical properties of the PV ribbon qualified test; check the appearance of the ribbon segment, found that a photovoltaic ribbon black clear appearance failure, charging performance of the photovoltaic welding qualifications but failed the appearance, as unsatisfactory.

Claims (2)

1.一种光伏焊带的湿热检测方法,其特征在于,它按如下流程进行:1、选取焊带尺寸为:宽0.5mm〜1.8mm,厚0.1mm〜0.3mm,长0.01〜10m光伏焊带进行外观检查,看有无发黄、发黑、起皮、剥落、鼓泡、开裂、龟裂等现象,若有,则为不合格,没有,进入下一流程;2、进行电阻检测,将所测电阻值&记录下来;3、将该焊带预处理;4、将预处理后的焊带放入45°C〜85°C,60%〜85% RH的环境箱中1〜20天;5、将焊带从环境箱中取出,进行焊带的电阻检测,将所测电阻值&记录下来;6、进行外观检查;7、评测:计算:τι = (R2—叫/札*100%,如果τι <5%,则该光伏焊带测试的电性能合格;相反,则不合格;如果在第6程序焊带没有发黄、发黑、起皮、剥落、鼓泡、开裂、龟裂的现象,则外观合格;相反,则不合格;只有电性能和外观二项都合格,焊带才定为合格。 A method of detecting a photovoltaic heat welding zone, characterized in that it is carried out according to the following procedure: 1. Select the ribbon dimensions: width 0.5mm~1.8mm, thick 0.1mm~0.3mm, welding length 0.01~10m PV with a visual inspection to see whether yellow, black, peeling, flaking, bubbling, cracking, cracking and other phenomena, if any, for the failure, there is no, the process proceeds to the next; 2, for detecting the resistance, the measured resistance value & recorded; 3, the ribbon pretreatment; 4, pretreated with the solder into 45 ° C~85 ° C, an environmental chamber of 60% ~85% RH in 1~20 days; 5, the ribbon is removed from the environmental chamber, for detecting the resistance welding strip, the measured resistance value & recorded; 6, visual inspection; 7, reviews: calculated: τι = (R2- called / sheaf * 100%, if the electrical properties τι <5%, the PV ribbon qualified test; the contrary, the failure; if there is no program in the sixth yellow ribbon, black, peeling, flaking, bubbling, cracking, cracking phenomenon, the appearance of compliance; the contrary, it failed; only the electrical properties and appearance of the two are qualified, ribbon was deemed acceptable.
2.按权利要求1所述的一种光伏焊带的湿热检测方法,其特征在于,第三程序的预处理是指:直接将焊带浸泡在2%〜20%的氯化钠溶液中,浸泡0.01〜24h。 2. A method for detecting heat PV ribbon according to claim 1, characterized in that the pretreatment of the third program means: directly ribbons soaked in ~ 20% of 2% sodium chloride solution, soak 0.01~24h.
CN201510755688.9A 2015-11-09 2015-11-09 Hot and humid detection method for photovoltaic solder strip CN105352877A (en)

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Publication number Priority date Publication date Assignee Title
WO1995015582A1 (en) * 1993-12-02 1995-06-08 R & S Renewable Energy Systems B.V. A photovoltaic solar panel and a method for producing same
EP2148376A2 (en) * 2008-07-21 2010-01-27 Robert Bürkle GmbH Method and device for switching solar cells in a photovoltaic module
CN201477031U (en) * 2009-08-05 2010-05-19 李观林 Saltwater spray detector
CN102156089A (en) * 2011-01-18 2011-08-17 中国石油天然气股份有限公司 Method for evaluating corrosion in buried pipeline
CN104269366A (en) * 2014-10-09 2015-01-07 泰州德通电气有限公司 Method for quickly detecting aging resistance of positive silver grating pulp and solder strips

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995015582A1 (en) * 1993-12-02 1995-06-08 R & S Renewable Energy Systems B.V. A photovoltaic solar panel and a method for producing same
EP2148376A2 (en) * 2008-07-21 2010-01-27 Robert Bürkle GmbH Method and device for switching solar cells in a photovoltaic module
CN201477031U (en) * 2009-08-05 2010-05-19 李观林 Saltwater spray detector
CN102156089A (en) * 2011-01-18 2011-08-17 中国石油天然气股份有限公司 Method for evaluating corrosion in buried pipeline
CN104269366A (en) * 2014-10-09 2015-01-07 泰州德通电气有限公司 Method for quickly detecting aging resistance of positive silver grating pulp and solder strips

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