CN108010862A - A kind of quick determination method of MWT solar cells - Google Patents
A kind of quick determination method of MWT solar cells Download PDFInfo
- Publication number
- CN108010862A CN108010862A CN201711282004.3A CN201711282004A CN108010862A CN 108010862 A CN108010862 A CN 108010862A CN 201711282004 A CN201711282004 A CN 201711282004A CN 108010862 A CN108010862 A CN 108010862A
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- solar cells
- resistance value
- mwt
- mwt solar
- positive
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- 238000011017 operating method Methods 0.000 abstract description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N silver Chemical compound 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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminum Chemical compound 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[Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reaction Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—BASIC ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H01L22/00—Testing or measuring during manufacture or treatment; Reliability measurements, i.e. testing of parts without further processing to modify the parts as such; Structural arrangements therefor
- H01L22/10—Measuring as part of the manufacturing process
- H01L22/12—Measuring as part of the manufacturing process for structural parameters, e.g. thickness, line width, refractive index, temperature, warp, bond strength, defects, optical inspection, electrical measurement of structural dimensions, metallurgic measurement of diffusions
Abstract
The invention discloses a kind of quick determination method of MWT solar cells, including：Step 1, visual examination；Check MWT solar cells anode point aperture whether printing opacity；Step 2, the resistance value inspection between anode point；Measure the resistance value of any two anode point；Step 3, the resistance value inspection between positive limit；Measure the resistance value of the positive limit of any two.The present invention is low to environment and tool demands, operating method is simple and convenient and easy to study, it can quickly and easily find the loose contact between the positive silver of MWT solar cells and blocking slurry, between back of the body silver and Al-BSF, the MWT solar cells with drawbacks described above for being conducive in process of production to occur screen.
Description
Technical field
The present invention relates to a kind of quick determination method of MWT solar cells, particular by inspection MWT solar cells
Resistance value between Different electrodes point, so as to quickly judge that this solar cell whether there is defect, the invention belongs to photovoltaic row
Industry MWT solar cell processing technique fields.
Background technology
MWT photovoltaic modulies by glass, encapsulating material (such as：EVA adhesive film), it is MWT solar cells, conducting resinl, GPS, integrated
Conductive backings are bonded under certain temperature, time and pressure by the curing of encapsulating material (EVA adhesive film).
Since MWT solar cells are the core starting materials of MWT photovoltaic modulies, itself can produce in the production process respectively
The bad of various kinds is planted, if undesirable MWT solar cells cannot be filtered out in time, it will cause MWT photovoltaic modulies also to occur
Each badness.
For MWT solar cells, most common bad have the following two kinds：
A) loose contact between the positive silver and blocking slurry of MWT solar cells, causes battery cathode point resistance value higher.
If such undesirable MWT solar cells cannot filter out, it may result in MWT photovoltaic modulies and occur such as Fig. 1 when EL is detected
It is bad shown in middle circle.
B) loose contact between the back of the body silver of MWT solar cells and Al-BSF, causes anode point resistance value higher.Such as
The such undesirable MWT solar cells of fruit cannot filter out, and may result in MWT photovoltaic modulies and occur when EL is detected as in Fig. 2
It is bad shown in circle.
So the detection method of above-mentioned loose contact can be rapidly filtered out, the matter to improving MWT solar cells
Amount, reduces the adverse effect to follow-up MWT components production, is of great significance with regard to tool.
The present invention is exactly a kind of can quickly to be detected between the positive silver of MWT solar cells and blocking slurry, carry on the back silver and aluminium
The method of loose contact between back surface field.
The content of the invention
Goal of the invention：Between the positive silver and blocking slurry that easily occur in process of production for MWT solar cells, carry on the back
The problem of loose contact between silver and Al-BSF, the present invention provides a kind of method for quickly detecting of MWT solar cells.Its mesh
Be can quickly and easily find MWT solar cells it is positive silver block slurry between, the back of the body silver and Al-BSF between
Loose contact, the MWT solar cells with drawbacks described above for being conducive in process of production to occur screen, avoid by
MWT solar cells with drawbacks described above flow to next process, so that the quality of MWT solar cells is improved, reduction pair
The adverse effect of follow-up MWT components production.
Technical solution：A kind of quick determination method of MWT solar cells, comprises the following steps：
1. visual examination
Check MWT solar cells anode point aperture whether printing opacity；If there are printing opacity aperture phenomenon, show anode point
Block that filled therewith is insufficient, this MWT solar cell carries out the next item down inspection there may be the problem of loose contact at aperture
Survey；
2. the resistance value inspection between anode point
In the optional two anode point in the back side of MWT solar cells, with measuring instrument (such as：Universal meter, etc.) measurement two
Resistance value between anode point, if resistance value is more than preset value, shows wherein with the presence of anode point loose contact
Problem；
3. the resistance value inspection between positive limit
In the optional two positive limits in the back side of MWT solar cells, with measuring instrument (such as：Universal meter, etc.) measurement two
Resistance value between positive limit, if resistance value is more than preset value, shows wherein have one just to be deposited between limit and Al-BSF
The loose contact the problem of.
Beneficial effect：The quick determination method of MWT solar cells provided by the present invention, to environment and tool demands
Low, operating method is simple and convenient and easy to study, can quickly and easily find between the positive silver of MWT solar cells and blocking slurry, back of the body silver
Loose contact between Al-BSF, is conducive to the MWT solar cells with drawbacks described above that will occur in process of production
Screen.
Brief description of the drawings
Fig. 1 occurs the schematic diagram of defective mode when EL is detected for MWT photovoltaic modulies；
Fig. 2 occurs the schematic diagram of defective mode when EL is detected for MWT photovoltaic modulies；
Fig. 3 is MWT solar battery front side structure diagrams；
Fig. 4 is MWT rear surface of solar cell structure diagrams.
The toponym that each numerical chracter is referred to is as follows：
The positive limit of 1-MWT solar cells；
2-MWT solar cells anode point；
3-MWT solar cell Al-BSFs.
Embodiment
With reference to specific embodiment, the present invention is furture elucidated, it should be understood that these embodiments are merely to illustrate the present invention
Rather than limit the scope of the invention, after the present invention has been read, various equivalences of the those skilled in the art to the present invention
The modification of form falls within the application appended claims limited range.
As shown in Figure 3,4, a kind of quick determination method of MWT solar cells, comprises the following steps：
1. visual examination
MWT solar battery front sides are placed under light upwards, whether 2 aperture of anode point of inspection MWT solar cells
Printing opacity.If there are aperture phenomenon, show that blocking filled therewith is insufficient at anode point aperture, this MWT solar cell
There may be the problem of loose contact, and carry out the next item down detection.
2. the resistance value inspection between anode point 2
MWT rear surface of solar cell is placed on the table upwards.Open digital multimeter, the mould of selection measurement resistance value
Formula.Two measuring pens of digital multimeter are respectively placed in the centre bit of each two anode point 2 of MWT rear surface of solar cell
Put, record the resistance value that digital multimeter is shown successively.If the situation for wherein thering is resistance value to be more than preset value, show that this is negative
There are the problem of loose contact for limit 2.
3. the resistance value inspection between positive limit 1
MWT rear surface of solar cell is placed on the table upwards.Open digital multimeter, the mould of selection measurement resistance value
Formula.The centre bit for the positive limit 1 of each two that two measuring pens of digital multimeter are respectively placed in MWT rear surface of solar cell
Put, record the resistance value that digital multimeter is shown successively.If the situation for wherein having resistance value to be more than preset value, shows this just
There are the problem of loose contact between limit 1 and Al-BSF 3.
Claims (4)
1. a kind of quick determination method of MWT solar cells, it is characterised in that comprise the following steps：
Step 1, visual examination；
Check MWT solar cells anode point aperture whether printing opacity；
Step 2, the resistance value inspection between anode point；
Measure the resistance value of any two anode point；
Step 3, the resistance value inspection between positive limit；
Measure the resistance value of the positive limit of any two.
2. the quick determination method of MWT solar cells as claimed in claim 1, it is characterised in that in step 1, check MWT
The anode point aperture of solar cell whether printing opacity；If there are printing opacity aperture phenomenon, show to block slurry at anode point aperture
Fill insufficient, this MWT solar cell carries out the next item down detection there may be the problem of loose contact.
3. the quick determination method of MWT solar cells as claimed in claim 1, it is characterised in that in step 2, in MWT too
The optional two anode point in the back side of positive energy battery, measures the resistance value between two anode points, if resistance value with measuring instrument
It is bigger than normal, then the problem of showing wherein with the presence of an anode point loose contact.
4. the quick determination method of MWT solar cells as claimed in claim 1, it is characterised in that in step 3, in MWT too
The optional two positive limits in the back side of positive energy battery, measure the resistance value between two positive limits, if resistance value with measuring instrument
More than preset value, then showing wherein to have one, positive there are the problem of loose contact between limit and Al-BSF.
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Cited By (1)
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| CN109100540A (en) * | 2018-06-14 | 2018-12-28 | 南京日托光伏科技股份有限公司 | A kind of MWT battery plug-hole bad test fixture and its application method |
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| CN108010862B (en) | 2020-08-28 |
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