CN106525600B - The snail line of photovoltaic module and the test method of pearl chain - Google Patents
The snail line of photovoltaic module and the test method of pearl chain Download PDFInfo
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- 241000237858 Gastropoda Species 0.000 title claims abstract description 56
- 238000010998 test method Methods 0.000 title claims abstract description 28
- 238000012360 testing method Methods 0.000 claims abstract description 98
- 238000000034 method Methods 0.000 claims abstract description 29
- 238000010438 heat treatment Methods 0.000 claims abstract description 21
- 238000011161 development Methods 0.000 claims description 7
- 229910052736 halogen Inorganic materials 0.000 claims description 6
- 150000002367 halogens Chemical class 0.000 claims description 6
- 230000002045 lasting effect Effects 0.000 claims 1
- 238000009434 installation Methods 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 4
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 238000011005 laboratory method Methods 0.000 abstract description 3
- 238000004458 analytical method Methods 0.000 description 3
- 238000009795 derivation Methods 0.000 description 3
- 239000011521 glass Substances 0.000 description 2
- 238000003475 lamination Methods 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000009432 framing Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/18—Performing tests at high or low temperatures
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
- G01N17/004—Investigating resistance of materials to the weather, to corrosion, or to light to light
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Abstract
The present invention discloses a kind of snail line of photovoltaic module and the test method of pearl chain, including provides photovoltaic module, carries out load test；One environment testing case is provided, the damp and hot test that is powered is carried out to photovoltaic module；Irradiation test is carried out to the photovoltaic module；It repeats above-mentioned damp and hot test to test with irradiation, judges whether photovoltaic module snail line occurs；The photovoltaic module for snail line occur is subjected to heating test, heating temperature is 120-150 DEG C.Test method of the present invention preferably reappears the environmental condition faced in photovoltaic module actual installation use process, accelerate the appearance of snail line and pearl chain by laboratory techniques, and then the anti-snail line of the photovoltaic module of different size and the performance of pearl chain are assessed, and then obtain material performance and the procedure for producing technique for optimizing corresponding photovoltaic module that corresponding photovoltaic module uses.
Description
Technical field
The present invention relates to photovoltaic module production technical field, in particular to the snail line of a kind of photovoltaic module and pearl chain
Test method.
Background technique
After photovoltaic module installs and uses some months, the cell piece of part photovoltaic module will appear snail line, and width is thick
Thin different, lines can be and criss-cross in assembly surface across each cell piece.As time goes by, part snail line can also
Development is pearl chain.Photovoltaic module obtains weight using the snail line and pearl chain phenomenon that occur in process are in the field of business in recent years further
Depending on to reduce the influence of snail line and pearl chain for photovoltaic module generating efficiency, many manufacturers are all being dedicated to analysis solution snail
Niu Wen and pearl chain problem.But when the process of photovoltaic module generation snail line and pearl chain generally requires several months or even is longer
Between, the excessive cycle for causing research to test is unfavorable for the optimization design of cell piece and photovoltaic module.
Hygrothermal environment is now had been proposed in the industry to be powered the state of simulation photovoltaic module actual motion outdoors, accelerates snail line
And the generation rate of pearl chain.As Chinese patent CN105552168 A use have crack cell piece lamination after, in hygrothermal environment
Under energization test is carried out to laminate, see whether snail line occur at regular intervals；Patent CN105490642 A is then by layer
Damp and hot test and ultraviolet lighting test are carried out after casting die encapsulation again.
However, being the crack cell piece of selection before lamination, suppression or the crack cell piece artificially manufactured according to the method described above
Can not photovoltaic module actual installation be replaced to use issuable crack or other defects in process；On the other hand, for light
Volt components snail line is also possible to development and forms that pearl chain is not further to be tested yet.
In consideration of it, it is necessary to provide the test methods of a kind of snail line of new photovoltaic module and pearl chain.
Summary of the invention
It is an object of that present invention to provide a kind of snail line of photovoltaic module and the test methods of pearl chain, can pass through experiment
Room means accelerate the appearance of snail line and pearl chain, and then assess the anti-snail line and pearl chain of the photovoltaic module of different size
Performance, and then obtain material performance and the procedure for producing technique for optimizing corresponding photovoltaic module that corresponding photovoltaic module uses.
For achieving the above object, the present invention provides the snail line of photovoltaic module and the test method of pearl chain, special
Sign is, the test method the following steps are included:
Photovoltaic module is provided, load test is carried out；
One environment testing case is provided, the damp and hot test that is powered is carried out to photovoltaic module；
Irradiation test is carried out to the photovoltaic module；
It repeats above-mentioned damp and hot test to test with irradiation, judges whether photovoltaic module snail line occurs；
The photovoltaic module for snail line occur is subjected to heating test, heating temperature is 120-150 DEG C, and heating, which is tested, continues 1-
8 hours, whether the snail line observed on photovoltaic module developed to form pearl chain.
As a further improvement of the present invention, the load test includes carrying out respectively to the front and back of photovoltaic module
Pressure test several times, test pressure are set as 2400-5400Pa, while the duration of accumulative pressure test each time.
As a further improvement of the present invention, the front and back of the photovoltaic module carries out 3 pressure tests respectively, often
Secondary pressure test continues 1 hour.
As a further improvement of the present invention, it is powered in damp and hot test process and keeps to photovoltaic module energization 5-8A.
As a further improvement of the present invention, environment testing case temperature setting in carrying out above-mentioned damp and hot test process
It is 85 DEG C, relative humidity is set as 85%.
As a further improvement of the present invention, the damp and hot test time is set as 6-8 days.
As a further improvement of the present invention, the judgment method that whether photovoltaic module snail line occurs is specifically included in
The photovoltaic module surface is observed when damp and hot test, irradiation test are completed every time or in irradiation test process, and is added up
The number of repetition N of the damp and hot test and irradiation test；If snail line occurs in the photovoltaic module, stop corresponding photovoltaic module
Damp and hot test and irradiation test；If the photovoltaic module does not occur snail line, judge N whether less than 4；If so, repeating damp and hot
Test is tested with irradiation；If it is not, judging that the photovoltaic module performance is qualified.
As a further improvement of the present invention, when the development length of the snail line meets or exceeds 2cm, judge the photovoltaic
There is snail line in component.
As a further improvement of the present invention, the irradiation test includes that photovoltaic module is transferred to outdoor carry out exposure
20Kwh/m2。
As a further improvement of the present invention, the test method further includes providing infrared halogen lamp, and pass through infrared halogen
Plain lamp carries out heating test to the photovoltaic module for snail line occur.
The beneficial effects of the present invention are: test method of the present invention has preferably reappeared photovoltaic module actual installation use process
The environmental conditions such as middle pressure-bearing, damp and hot and exposure accelerate snail line to occur by laboratory techniques, and to the photovoltaic for snail line occur
Component further passes through the derivation development of heating test discriminatory analysis pearl chain.Different rule are effectively assessed by above-mentioned test method
The anti-snail line of the photovoltaic module of lattice and the performance of pearl chain, and then obtain material performance and optimization that corresponding photovoltaic module uses
The procedure for producing technique of corresponding photovoltaic module.
Detailed description of the invention
Fig. 1 is the flow diagram of test method of the present invention.
Specific embodiment
Below with reference to embodiment shown in the drawings, the present invention will be described in detail.But the embodiment is not intended to limit
The present invention, structure that those skilled in the art are made according to the embodiment, method or transformation functionally are wrapped
Containing within the scope of the present invention.
It please refers to shown in Fig. 1, the snail line of photovoltaic module provided by the invention and the test method of pearl chain, including following
Step:
Photovoltaic module is provided, the cell piece of set specification is selected and produces raw material accordingly, including welding, EVA, glass
Glass, backboard and outline border, and then weld, be laminated, framing up to obtain corresponding photovoltaic module by set making technology completion；
Referring to IEC61215 normative document, load test is carried out to above-mentioned photovoltaic module；
One environment testing case is provided, the damp and hot test that is powered is carried out to photovoltaic module；
Irradiation test is carried out to the photovoltaic module；
It repeats above-mentioned damp and hot test to test with irradiation, judges whether photovoltaic module snail line occurs；
The photovoltaic module for snail line occur is subjected to heating test, heating temperature is 120-150 DEG C.
The load test includes carrying out pressure test several times respectively to the front and back of photovoltaic module, tests pressure
It is set as 2400-5400Pa, while the duration of accumulative pressure test each time.Preferably, the front of the photovoltaic module
Carry out 3 pressure tests respectively with reverse side, wherein pressure survey twice before the backside pressure of the photovoltaic module is tested and is positive
The test pressure of examination is disposed as 2400Pa, and the test pressure of last time positive pressure test is 5400Pa, and is pressed every time
Power test continues 1 hour.
Environment testing case temperature in carrying out above-mentioned damp and hot test process is set as 85 DEG C, and relative humidity is set as
85%.The damp and hot test time is set as 6-8 days, and is kept in the damp and hot test process of the photovoltaic module to light
Lie prostrate component energization 5-8A.
The irradiation test includes that photovoltaic module is transferred to outdoor carry out exposure 20Kwh/m2.Certainly, work as outdoor exposure
When condition does not have, it can also be carried out by indoor illumination.
The judgment method whether photovoltaic module snail line occurs is specifically included in every time damp and hot test, irradiation is tested
At when or irradiation test process in the photovoltaic module surface is observed, and add up it is described it is damp and hot test with irradiation test
Number of repetition N；If snail line occurs in the photovoltaic module, the damp and hot test and irradiation for stopping corresponding photovoltaic module are tested；If
Whether the photovoltaic module does not occur snail line, judge N less than 4；It is tested if so, repeating damp and hot test with irradiation；If it is not, judgement
The photovoltaic module performance is qualified.Wherein, when the development length of the snail line meets or exceeds 2cm, judge that the photovoltaic module goes out
Existing snail line.
The heating test includes providing infrared halogen lamp, and pass through infrared halogen lamp to the photovoltaic module for snail line occur
Heating test is carried out, wherein heating temperature maintains 120-150 DEG C, and the heating test continues 1-8 hours.Generally, above-mentioned
Photovoltaic module with snail line is tested by above-mentioned heating, and the energy derivation of snail line develops to form pearl chain, but does not share the same light
The time for lying prostrate heating test needed for component is not also identical.
In conclusion test method of the present invention has preferably reappeared pressure-bearing in photovoltaic module actual installation use process, wet
Heat and the environmental conditions such as exposure accelerate snail line to occur by laboratory techniques, and to the photovoltaic module for snail line occur into one
The derivation development that step passes through heating test discriminatory analysis pearl chain.The photovoltaic module of set specification is obtained by above-mentioned test method
Whether snail line is there is, the heating testing time that time, number, tendency and the pearl chain that snail line occurs are formed, Neng Gouyou
The anti-snail line of the photovoltaic module of effect assessment different size and the performance of pearl chain, and then obtain the original that corresponding photovoltaic module uses
Material performance and the procedure for producing technique for optimizing corresponding photovoltaic module.
It should be appreciated that although this specification is described in terms of embodiments, but not each embodiment only includes one
A independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should will say
As a whole, the technical solution in each embodiment may also be suitably combined to form those skilled in the art can for bright book
With the other embodiments of understanding.
The series of detailed descriptions listed above only for feasible embodiment of the invention specifically
Protection scope bright, that they are not intended to limit the invention, it is all without departing from equivalent implementations made by technical spirit of the present invention
Or change should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of snail line of photovoltaic module and the test method of pearl chain, which is characterized in that the test method includes following
Step:
Photovoltaic module is provided, load test is carried out；
One environment testing case is provided, the damp and hot test that is powered is carried out to photovoltaic module；
Irradiation test is carried out to the photovoltaic module；
It repeats above-mentioned damp and hot test to test with irradiation, judges whether photovoltaic module snail line occurs；
The photovoltaic module for snail line occur is subjected to heating test, heating temperature is 120-150 DEG C, and it is small that lasting 1-8 is tested in heating
When, whether the snail line observed on photovoltaic module develops to form pearl chain.
2. test method according to claim 1, it is characterised in that: the load test includes the front to photovoltaic module
Pressure test several times is carried out respectively with reverse side, and test pressure is set as 2400-5400Pa, while accumulative pressure test each time
Duration.
3. test method according to claim 2, it is characterised in that: the front and back of the photovoltaic module carries out respectively
3 pressure tests, each pressure test continue 1 hour.
4. test method according to claim 1, it is characterised in that: be powered in damp and hot test process and keep to photovoltaic module
Energization 5-8A.
5. test method according to claim 4, it is characterised in that: the environment testing case is carrying out above-mentioned damp and hot test
Temperature is set as 85 DEG C in process, and relative humidity is set as 85%.
6. test method according to claim 5, it is characterised in that: the damp and hot test time is set as 6-8 days.
7. test method according to claim 1, it is characterised in that: whether the photovoltaic module judgement of snail line occurs
Method be specifically included in every time it is damp and hot test, irradiation test complete when or irradiation test process in the photovoltaic module surface into
Row observation, and add up the number of repetition N of the damp and hot test and irradiation test；If snail line occurs in the photovoltaic module, stop
Only the damp and hot test of corresponding photovoltaic module and irradiation are tested；If the photovoltaic module does not occur snail line, judge N whether less than 4；
It is tested if so, repeating damp and hot test with irradiation；If it is not, judging that the photovoltaic module performance is qualified.
8. test method according to claim 7, it is characterised in that: the development length of the snail line is met or exceeded
When 2cm, judge that snail line occurs in the photovoltaic module.
9. test method according to claim 1, it is characterised in that: the irradiation test includes being transferred to photovoltaic module
Outdoor carry out exposure 20Kwh/m2。
10. test method according to claim 1, it is characterised in that: the test method further includes providing infrared halogen
Lamp, and heating test is carried out to the photovoltaic module for snail line occur by infrared halogen lamp.
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| CN107659263A (en) * | 2017-08-23 | 2018-02-02 | 上海晶澳太阳能科技有限公司 | A kind of fast playback method of photovoltaic module snail line |
| CN108418555A (en) * | 2018-05-04 | 2018-08-17 | 浙江晶科能源有限公司 | A kind of test method of the snakelike spot of photovoltaic module |
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2016
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Address after: No. 199, deer mountain road, Suzhou high tech Zone, Jiangsu Province Applicant after: Artes sunshine Power Group Co. Ltd. Applicant after: Changshu Canadian Solar Inc. Address before: No. 199, deer mountain road, Suzhou high tech Zone, Jiangsu Province Applicant before: Canadian (China) Investment Co., Ltd. Applicant before: Changshu Canadian Solar Inc. |
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Address after: No. 199, deer mountain road, Suzhou high tech Zone, Jiangsu Province Patentee after: Atlas sunshine Power Group Co.,Ltd. Patentee after: Changshu Artes Sunshine Power Technology Co.,Ltd. Address before: No. 199, deer mountain road, Suzhou high tech Zone, Jiangsu Province Patentee before: CSI SOLAR POWER GROUP Co.,Ltd. Patentee before: Changshu Artes Sunshine Power Technology Co.,Ltd. |