CN109100540A - A kind of MWT battery plug-hole bad test fixture and its application method - Google Patents
A kind of MWT battery plug-hole bad test fixture and its application method Download PDFInfo
- Publication number
- CN109100540A CN109100540A CN201810614254.0A CN201810614254A CN109100540A CN 109100540 A CN109100540 A CN 109100540A CN 201810614254 A CN201810614254 A CN 201810614254A CN 109100540 A CN109100540 A CN 109100540A
- Authority
- CN
- China
- Prior art keywords
- probe
- test
- row
- mwt battery
- test fixture
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
- G01R1/0425—Test clips, e.g. for IC's
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/06—Measuring leads; Measuring probes
- G01R1/067—Measuring probes
- G01R1/073—Multiple probes
- G01R1/07307—Multiple probes with individual probe elements, e.g. needles, cantilever beams or bump contacts, fixed in relation to each other, e.g. bed of nails fixture or probe card
Abstract
The present invention discloses a kind of MWT battery plug-hole bad test fixture and its application method, passes through design N2/ 2(is even number as N) or (N2- 1)/2(is odd number as N) organize the test loop independently arranged, resistance value between all cathode successively or in synchronism detection MWT battery, to effectively detect MWT plug-hole bad.Meanwhile the resistance value signal of test is transferred to automation equipment, it can quickly and effectively realize MWT battery plug-hole bad detection and screening.
Description
Technical field
The present invention relates to a kind of MWT battery plug-hole bad test fixture and its application methods, belong to MWT solar-electricity
Pond module testing technical field.
Background technique
Currently, crystal silicon solar technology includes heterojunction solar battery (HIT), back electrode contacts silicon solar cell
(IBC), emitter circulating break-through silicon solar cell (EWT), buried contaCt solar Cells, inclination evaporated metal contact the silicon sun
It can battery (OECO) and metal piercing winding silicon solar cell (MWT) etc..Wherein, MWT battery is because of its high-efficient, shading-area
Small and better appearance characteristics receive more and more attention.
MWT silicon solar cell is that the carrier for being collected front gate line by laser drill passes through battery transfer to battery
The back side achievees the purpose that improve transfer efficiency to reduce shading-area.As a result, to realize MWT battery structure, need in routine
Punching is added in battery structure and two functions are connected in hole.Wherein, punching is often realized by the way of laser boring at present；
Hole conducting often uses silk-screen printing filling perforation slurry, then realizes with front electrode and Al-BSF co-sintering.Such as patent
CN201410016190.6 provides a kind of MWT battery preparation method of low cost, production of this method in conventional crystalline silicon battery
Only increase two procedures in process and realize MWT battery structure, due to this method simple process, equipment is gone into operation few, it has also become in the industry
The unique batch production technique of MWT battery at present.
Since the positive and negative electrode point of MWT battery piece is distributed in the back side of cell piece, so that the electrical property of MWT battery piece is surveyed
Examination is different from conventional batteries piece, and the design of test fixture has become one of key technology of MWT battery.Patent
CN201610855336.5 has announced a kind of method, by using coaxial probe in positive electrode point, simulates conventional batteries piece or more
The mode that probe symmetrically pushes largely reduces test fragment rate, this method while guaranteeing measuring accuracy
It is unique volume production test method.
It is realized since the pore quantity of MWT battery is more, and by the way of the additional co-sintering of silk-screen printing filling perforation slurry
It is bad even inevitably to there is a certain proportion of some or multiple hole on states by production line influence of fluctuations in hole conducting
The cell piece being not turned on, bad of abbreviation MWT plug-hole.The series resistance of such cell piece increases, and influences cell piece or component
Transfer efficiency and EL yield.Therefore the screening of this kind of cell piece is very necessary and important.
The bad built-in testing mode of MWT plug-hole haves the defects that as follows at present:
(1) multimeter is tested: can effectively detect MWT plug-hole using the resistance value that multimeter is tested at two cathode points
Bad, but the resistance between the so numerous points of manual testing, workload is huge, is unable to satisfy requirement substantially.
(2) EL is tested: EL test can automate follow-on test, but can not effectively be distinguished by the shading value difference of EL picture
Bad of other MWT plug-hole, False Rate is high, basically lost its role.
As a result, currently without a kind of validity test and the method for screening MWT plug-hole bad, it is badly in need of a kind of automation equipment
Meet to bad timely, Effective selection of MWT plug-hole.
Summary of the invention
Goal of the invention: aiming at the problems existing in the prior art with deficiency, it is bad that the present invention provides a kind of MWT battery plug-hole
The test fixture and its application method of piece.
Technical solution: a kind of MWT battery plug-hole bad test fixture is uniformly distributed structure for testing N × N
MWT battery, including upper test fixture and lower test fixture；The lower test fixture includes the N equal with MWT battery cathode number of rows
Arrange lower test probe row；It includes N number of coaxial probe and multiple lower probes that probe row is tested under every row；The coaxial probe
Position is corresponding with the cathode of MWT battery, the upper end of coaxial probe for connecting battery cathode, the upper end level of coaxial probe with
Lower probe upper end level flushes；In pairs, every group of coaxial probe connects one to the N of the lower test fixture × N number of coaxial probe
The test loop of a constant-current source composition resistance, the lower end of two coaxial probes is separately connected the both ends of constant-current source.
When N is even number, in pairs, N × N number of coaxial probe is divided into N to coaxial probe2/ 2 groups；When N is odd number,
In pairs, N × N number of coaxial probe is divided into (N to coaxial probe2- 1)/2 group, when N is odd number, one, bosom is coaxial to be visited
Needle is not tested.
The constant-current source parameter current value range is 1-20A.
The lower probe and coaxial probe interval that probe row is tested under every row are arranged, each coaxial probe and 2 tests
Needle is adjacent.
The upper test fixture includes that probe row is tested on N row, test probe row and test probe row under every row on every row
Position is corresponding, and test probe row includes multiple upper probes on every row, and upper number of probes is equal to upper number of probes and coaxial probe number
The sum of amount；Upper probe location and lower probe location and coaxial probe position correspond, thus during the test to cell piece
Form one-to-one pressure up and down；The upper probe and cell piece contact jaw are equipped with insulation sleeve.
The upper test clip includes that N arranges transparent glass plate, and the position of every row's glass plate and lower test probe, which rank, to be set pair
It answers.
A kind of application method of MWT battery plug-hole bad test fixture, when testing MWT battery piece, two of every group
A constant-current source is connected between coaxial probe, a test loop is formed, due to N2/ 2 groups or (N2- 1)/2 line of group test loop
Road is independently arranged, and is realized by way of every group of test loop is successively powered or is spaced and is continuously powered successively or synchronism detection
Resistance value between all cathode of MWT battery on piece.The resistance value signal of test is transferred to automation equipment, to quickly have
Effect realizes MWT battery plug-hole bad detection and screening.
The considerations of for silicon wafer shape and symmetry principle aspect, MWT battery generallys use N × N and is uniformly distributed structure
Electrode structure at right side is to reach optimal carrier collection effect.Thus laser boring point is uniformly arranged in N × N, positive (plated film
Face) carrier collected is transferred to the cathode at the back side MWT by the hole after filled therewith, and corresponding cathode is in N × N equal
Even arrangement.The positive pole at the MWT battery back side equally uses being uniformly distributed for M × M, and M≤N.The present invention passes through test MWT battery
Resistance value between all laser borings of piece (cathode) assesses MWT battery plug-hole bad, this test fixture passes through lower test
It is realized with upper test fixture, lower test fixture is used as using the IV test probe row of conventional batteries.Probe number of rows amount be N row (with
The number of rows of MWT battery cathode is equal)；N number of coaxial probe and typical probe in varying numbers is respectively set on every row's probe row, together
The position of axis probe and the cathode of MWT battery are corresponding.Due to passing through the resistance value between two laser borings (cathode) of test
It assesses, without upper row's electrode and insulation processing need to be done when test, at this time only as applying stressed effect.Can have following several
Kind mode:
(1) using probe row's mode as upper test fixture；In lower test probe row and its installation life of probe corresponding position
Probe row and upper probe are tested, to form one-to-one correspondence pressure.Meanwhile conventional metals probe is replaced using plastic cushion.It is real
The now insulation between upper probe row and MWT battery piece.
(2) transparency glass plate；Upper test fixture pushes to form good contact, transparency glass plate by using transparency glass plate
Quantity and position and lower probe row correspond.
When tested, it is realized between two cathode points of MWT battery by coaxial probe while impressed current and voltage
The function of test, can accurately be calculated by applied current value with the voltage value tested out corresponding two cathode of MWT battery it
Between resistance value, to effectively evaluate the plug-hole situation of two cathode.
Detailed description of the invention
Fig. 1 is the upper structural schematic diagram for testing test probe row under probe row and every row in the embodiment of the present invention；
Fig. 2 is the upper structural schematic diagram for testing test probe row under probe row and every row in the embodiment of the present invention.
Specific embodiment
In the following with reference to the drawings and specific embodiments, the present invention is furture elucidated.
Embodiment 1:
The bad test object of plug-hole is the MWT battery piece 9 using 6 × 6 laser boring structures, the cathode of MWT rear electrode
In 6 × 6 uniform arrangement, anode is uniformly distributed in 5 × 5.
The test fixture that MWT battery plug-hole is bad, including upper test fixture and lower test fixture；Lower test fixture includes
Probe row 1 is tested under 6 rows；It includes the lower probe 3 of 6 coaxial probes 2 and 7 that probe row 1 is tested under every row；The position of coaxial probe 2
Set, lower probe 3 and coaxial probe 2 interval setting, each coaxial probe 2 and 2 test corresponding with the cathode of MWT battery piece 9
Needle 3 is adjacent；
The upper end of coaxial probe 2 is for connecting battery cathode, the upper end level of coaxial probe 2 and lower 3 upper end level of probe
It flushes；36 coaxial probes 2 of lower test fixture in pairs, are divided into 18 groups, every group of 2 connection line 4 of coaxial probe connection one
A constant-current source 5 forms the test loop of resistance, and the lower end of two coaxial probes 2 passes through the two of connection line 4 and constant-current source 5 respectively
End connection.
Upper test fixture includes test probe row 6 on 6 rows, and test probe row 6 arranges 1 with test probe under every row on every row
Correspondence is set, test probe row 6 includes 13 upper probes 7 on every row；Upper 7 position of probe and lower 3 position of probe and coaxial probe 2
One-to-one correspondence is set, to form one-to-one pressure up and down to cell piece during the test；Upper probe 7 is contacted with cell piece
End is equipped with insulation sleeve 8, the insulation in realization between test probe row 6 and MWT battery piece 9.
The application method for the test fixture that MWT battery plug-hole is bad presss from both sides MWT battery piece 9 when testing MWT battery piece 9
Between upper test fixture and lower test fixture, a constant current is connected between every group of two coaxial probes 2 of lower test fixture
Source 5 forms a test loop, realized by way of every group of test loop is successively powered or is spaced and is continuously powered successively or
Resistance value between all cathode on person's synchronism detection MWT battery piece 9.The resistance value signal of test is transferred to automation to set
It is standby, to quickly and effectively realize MWT battery plug-hole bad detection and screening.
Embodiment 2
The bad test object of plug-hole is the MWT battery piece 9 using 6 × 6 laser boring structures, the cathode of MWT rear electrode
In 6 × 6 uniform arrangement, anode is uniformly distributed in 5 × 5.
The test fixture that MWT battery plug-hole is bad, including upper test fixture and lower test fixture；Lower test fixture includes
Probe row 1 is tested under 6 rows；It includes the lower probe 3 of 6 coaxial probes 2 and 7 that probe row 1 is tested under every row；The position of coaxial probe 2
Set, lower probe 3 and coaxial probe 2 interval setting, each coaxial probe 2 and 2 test corresponding with the cathode of MWT battery piece 9
Needle 3 is adjacent；
The upper end of coaxial probe 2 is for connecting battery cathode, the upper end level of coaxial probe 2 and lower 3 upper end level of probe
It flushes；36 coaxial probes 2 of lower test fixture in pairs, are divided into 18 groups, every group of 2 connection line 4 of coaxial probe connection one
A constant-current source 5 forms the test loop of resistance, and the lower end of two coaxial probes 2 passes through the two of connection line 4 and constant-current source 5 respectively
End connection.
Upper test clip includes that N arranges transparent glass plate 10, and the position of every row's glass plate 10 and lower test probe arrange 1 position pair
It answers, to form one-to-one correspondence pressure.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
It for member, without departing from the principle of the present invention, can also make several improvements, these improvement also should be regarded as of the invention
Protection scope.
Claims (8)
1. a kind of MWT battery plug-hole bad test fixture, the MWT battery for being uniformly distributed structure for testing N × N, including
Upper test fixture and lower test fixture；It is characterized by: the lower test fixture includes the N equal with MWT battery cathode number of rows
Arrange lower test probe row；It includes N number of coaxial probe and multiple lower probes that probe row is tested under every row；The coaxial probe
Position is corresponding with the cathode of MWT battery, the upper end of coaxial probe for connecting battery cathode, the upper end level of coaxial probe with
Lower probe upper end level flushes；In pairs, every group of coaxial probe connects one to the N of the lower test fixture × N number of coaxial probe
The test loop of a constant-current source composition resistance, the lower end of two coaxial probes is separately connected the both ends of constant-current source.
2. MWT battery plug-hole bad test fixture as described in claim 1, it is characterised in that: when N is even number, together
In pairs, N × N number of coaxial probe is divided into N to axis probe2/ 2 groups；When N be odd number when, coaxial probe in pairs, N × N number of
Coaxial probe is divided into (N2- 1)/2 group.
3. MWT battery plug-hole bad test fixture as described in claim 1, it is characterised in that: tested under every row
The lower probe of probe row and coaxial probe interval are arranged, and each coaxial probe is adjacent with 2 lower probes.
4. MWT battery plug-hole bad test fixture as described in claim 1, it is characterised in that: the upper test fixture
Including testing probe row on N row, test probe row sets corresponding with test probe ranking under every row on every row, tests probe on every row
Row includes multiple upper probes, and upper number of probes is equal to the sum of upper number of probes and coaxial probe quantity；Upper probe location and test
Pin position and coaxial probe position correspond, to form one-to-one pressure up and down to cell piece during the test；
The upper probe and cell piece contact jaw are equipped with insulation sleeve.
5. MWT battery plug-hole bad test fixture as described in claim 1, it is characterised in that: the upper test clip pack
It includes N and arranges transparent glass plate, the position of every row's glass plate is set corresponding with the ranking of lower test probe.
6. MWT battery plug-hole bad test fixture as described in claim 1, it is characterised in that: when N is odd number, most
One, center coaxial probe is not tested.
7. MWT battery plug-hole bad test fixture as described in claim 1, it is characterised in that: the constant-current source parameter
Current value range is 1-20A.
8. a kind of application method of MWT battery plug-hole bad test fixture, it is characterised in that: when test MWT battery piece, often
A constant-current source is connected between two coaxial probes of group, a test loop is formed, due to N2/ 2 groups or (N2- 1)/2 group test
The route in circuit is independently arranged, realized by way of every group of test loop is successively powered or is spaced and is continuously powered successively or
Resistance value between all cathode of synchronism detection MWT battery on piece；
The resistance value signal of test is transferred to automation equipment, to quickly and effectively realize MWT battery plug-hole bad inspection
It surveys and screens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810614254.0A CN109100540A (en) | 2018-06-14 | 2018-06-14 | A kind of MWT battery plug-hole bad test fixture and its application method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810614254.0A CN109100540A (en) | 2018-06-14 | 2018-06-14 | A kind of MWT battery plug-hole bad test fixture and its application method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109100540A true CN109100540A (en) | 2018-12-28 |
Family
ID=64796828
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810614254.0A Pending CN109100540A (en) | 2018-06-14 | 2018-06-14 | A kind of MWT battery plug-hole bad test fixture and its application method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109100540A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201159757Y (en) * | 2008-01-21 | 2008-12-03 | 吴美惠 | Universal testing device capable of detecting accurate resistor |
| CN201359613Y (en) * | 2009-01-19 | 2009-12-09 | 李毅 | Test electrode jig of amorphous silicon solar battery |
| CN201548668U (en) * | 2009-11-10 | 2010-08-11 | 天津力神电池股份有限公司 | Retest-free high-efficiency voltage/internal resistance testing system of battery |
| CN201903632U (en) * | 2010-11-29 | 2011-07-20 | 天津力神电池股份有限公司 | Resistance balance detecting instrument |
| CN103389452A (en) * | 2013-08-01 | 2013-11-13 | 无锡帝科电子材料科技有限公司 | Probe detector capable of manually and rapidly lifting and pressing probes |
| CN104698282A (en) * | 2015-03-19 | 2015-06-10 | 苏州市职业大学 | Resistance-temperature characteristic testing method |
| CN105994005A (en) * | 2016-05-30 | 2016-10-12 | 江苏师范大学 | Detection instrument and method for cow oestrus degree and optimum insemination time |
| CN106230383A (en) * | 2016-09-27 | 2016-12-14 | 南京日托光伏科技股份有限公司 | A kind of MWT solar cell test device and method of testing |
| CN205958436U (en) * | 2016-08-31 | 2017-02-15 | 吴涛 | Metal covering corrosion detection appearance |
| CN108010862A (en) * | 2017-12-07 | 2018-05-08 | 南京日托光伏科技股份有限公司 | A kind of quick determination method of MWT solar cells |
-
2018
- 2018-06-14 CN CN201810614254.0A patent/CN109100540A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201159757Y (en) * | 2008-01-21 | 2008-12-03 | 吴美惠 | Universal testing device capable of detecting accurate resistor |
| CN201359613Y (en) * | 2009-01-19 | 2009-12-09 | 李毅 | Test electrode jig of amorphous silicon solar battery |
| CN201548668U (en) * | 2009-11-10 | 2010-08-11 | 天津力神电池股份有限公司 | Retest-free high-efficiency voltage/internal resistance testing system of battery |
| CN201903632U (en) * | 2010-11-29 | 2011-07-20 | 天津力神电池股份有限公司 | Resistance balance detecting instrument |
| CN103389452A (en) * | 2013-08-01 | 2013-11-13 | 无锡帝科电子材料科技有限公司 | Probe detector capable of manually and rapidly lifting and pressing probes |
| CN104698282A (en) * | 2015-03-19 | 2015-06-10 | 苏州市职业大学 | Resistance-temperature characteristic testing method |
| CN105994005A (en) * | 2016-05-30 | 2016-10-12 | 江苏师范大学 | Detection instrument and method for cow oestrus degree and optimum insemination time |
| CN205958436U (en) * | 2016-08-31 | 2017-02-15 | 吴涛 | Metal covering corrosion detection appearance |
| CN106230383A (en) * | 2016-09-27 | 2016-12-14 | 南京日托光伏科技股份有限公司 | A kind of MWT solar cell test device and method of testing |
| CN108010862A (en) * | 2017-12-07 | 2018-05-08 | 南京日托光伏科技股份有限公司 | A kind of quick determination method of MWT solar cells |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202837487U (en) | Solar cell detecting device | |
| CN107783056A (en) | A kind of cell polar ear welds rosin joint detection method | |
| CN103743974A (en) | Reliability test board and CAF resistance performance test method of printed circuit board | |
| CN209345104U (en) | A kind of test fixture of MWT battery | |
| CN203658409U (en) | Solar cell front side main gate line current and voltage test contact device | |
| CN206114470U (en) | Lithium ion battery diaphragm moisture absorption speed testing arrangement | |
| CN106057702B (en) | A kind of detection method of the solar battery sheet with qualified hot spot temperature range | |
| CN109100540A (en) | A kind of MWT battery plug-hole bad test fixture and its application method | |
| CN208013369U (en) | A kind of CAF test boards | |
| CN209198510U (en) | A kind of checking of great current ring-shaped probe | |
| CN205792459U (en) | For testing the IV tester of heterojunction solar battery | |
| CN205666800U (en) | Suns voc testing arrangement | |
| CN203150566U (en) | Metal-wrap-through solar cell sheet | |
| CN203950450U (en) | A kind of solution conductivity display | |
| CN209046909U (en) | A kind of fault detection means of LED lamp panel | |
| CN210223953U (en) | Photovoltaic laminated tile battery IV testing arrangement | |
| CN205506740U (en) | Test pen is heavily mixed to silicon material | |
| Kunz et al. | Investigating metal-semiconductor contacts in solar cells using magnetic field measurements | |
| CN203101427U (en) | Auxiliary testing tool of junction box | |
| CN108010862B (en) | Rapid detection method of MWT solar cell | |
| CN209102855U (en) | Electromagnetic membrane FPC plate tests structure | |
| CN209402479U (en) | A kind of Suns-Voc test platform for testing MWT battery | |
| CN206402192U (en) | Crystal silicon solar batteries built-in testing device | |
| CN216670078U (en) | Probe testing device | |
| CN212844045U (en) | Temperature detection device for multipoint detection of temperature of PPTC (polymeric positive temperature coefficient) chip in high-voltage overcurrent |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 214028 Xishi Road, Xinwu District, Wuxi City, Jiangsu Province Applicant after: Jiangsu Rituo Photovoltaic Technology Co., Ltd. Address before: 211800 No. 29 Buyue Road, Pukou Economic Development Zone, Qiaolin Street, Pukou District, Nanjing City, Jiangsu Province Applicant before: Nanjing day care PV Polytron Technologies Inc |
|
| CB02 | Change of applicant information | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181228 |
|
| RJ01 | Rejection of invention patent application after publication |