CN206003790U - A kind of back contact solar cell assembly - Google Patents
A kind of back contact solar cell assembly Download PDFInfo
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- CN206003790U CN206003790U CN201621044668.7U CN201621044668U CN206003790U CN 206003790 U CN206003790 U CN 206003790U CN 201621044668 U CN201621044668 U CN 201621044668U CN 206003790 U CN206003790 U CN 206003790U
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- electrode
- cluster point
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- foil circuits
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
The utility model discloses a kind of back contact solar cell assembly, this component internal structure is from top to bottom followed successively by solar battery sheet 1, insulating adhesive film layer 3 and metal-foil circuits layer 4, in the fixed some electrode cluster points 5 in the front of metal-foil circuits layer 4, some through holes 7 are opened up on insulating adhesive film layer 3, the fixed positive and negative electrode in solar battery sheet 1 back side 2, each electrode cluster point 5 passes through through hole 7, and the top of each electrode cluster point 5 connects corresponding electrode.This assembly arranges electrode cluster point 5 between solar battery sheet 1 and metal-foil circuits layer 4, using laser welding technology, the positive and negative electrode 2 on solar battery sheet 1 is welded directly together with the electrode cluster point 5 on metal-foil circuits layer 4, no longer carry out the transmission of electric current between the two by injecting conductive silver glue, reduce the overall manufacturing cost of this assembly, substantially increase back contact solar cell assembly open air long term reliability.
Description
Technical field
This utility model is related to back contact solar cell assembly field, specially a kind of back contact solar cell assembly
And its manufacture method.
Background technology
Pass through in insulation between solar battery sheet and metal-foil circuits layer in traditional back contact solar cell assembly
Some conductive through holes are opened up on adhesive film, then injects conductive silver glue in each conductive through hole, will too finally by conductive silver glue
The electric current that sun energy cell piece produces passes to metal-foil circuits layer, then by aluminium foil conductive layer, electric current is passed to external cabling box.
The two ends of above-mentioned conductive silver glue stick on the back side and metal-foil circuits layer of solar battery sheet respectively, in order to reach
Meet electric conductivity to certain adhesion effect and simultaneously, the material of conductive silver glue is selected to have higher requirements, this kind of conductive silver
Glue expensive, therefore substantially increase the manufacturing cost of this kind of solar components.
Further, since solar module is positioned over outwork throughout the year, long-term exposes to the sun and rain and the change of height temperature
Change, the outdoor weathe resistance of conductive silver glue can be caused greatly to test, conductive silver glue may have the hidden danger of ageing failure, makes
Battery plate electrode and metal-foil circuits layer loose contact, contact resistance rises thus leading to battery component power output to decline；Sternly
Even completely disengage from contact during weight, cause monoblock solar module to lose efficacy.
Content of the invention
This utility model provides a kind of back contact solar cell assembly, and this assembly is in solar battery sheet and metal forming electricity
Electrode cluster point is set between the floor of road, no longer carries out the transmission of electric current between the two by injecting conductive silver glue, reduce this assembly
Overall manufacturing cost, substantially increase the market competitiveness.
This utility model solves its technical problem and be employed technical scheme comprise that：This component internal structure is from top to bottom successively
For solar battery sheet, insulating adhesive film layer and metal-foil circuits layer, in the fixed some electrode cluster points in the front of metal-foil circuits layer,
Some through holes, the fixed positive and negative electrode in solar cell back face are opened up on insulating adhesive film layer, each electrode cluster point passes through corresponding
Through hole, the top end face of each electrode cluster point is connected corresponding electrode.
The positive and negative electrode of solar battery sheet is reached electric current on metal-foil circuits layer by corresponding electrode, then by gold
Belong to paper tinsel circuit layer and connect outside rosette and electric current spreads out of, by using electrode cluster point replacement conductive silver glue, low cost and
The metallicity of electrode cluster point is more more excellent than conductive silver glue, good conductivity and conductive resistance is little；Electrode cluster point simultaneously
Self character can use for a long time in the larger environment of wind and weather or temperature change, and good stability during use prolongs significantly
Grow the service life of this assembly.
This utility model devises, and described electrode cluster point adopts supersonic cold gas spray technology to generate in metal-foil circuits layer
Front, the thickness of this electrode cluster point is 0.1-2000um.
This utility model devises, and the top end face of described electrode cluster point electrode cluster point adopts laser welding technology to be connected accordingly
Electrode.
Brief description
Fig. 1 show structural representation one of the present utility model；
Fig. 2 show structural representation two of the present utility model；
Fig. 3 show structural representation three of the present utility model.
Specific embodiment
With specific embodiment, this utility model is described in detail below in conjunction with the accompanying drawings：
It is a specific embodiment of the present utility model as Figure 1-3, this assembly is from top to bottom followed successively by solar-electricity
Pond piece 1, insulating adhesive film layer 3 and metal-foil circuits layer 4, adopt supersonic cold gas spray technology to give birth in the front of metal-foil circuits layer 4
Become some electrode cluster point 5, insulating adhesive film layer 3 opens up some through holes 7, the fixed positive and negative electrode in solar battery sheet 1 back side 2,
Each electrode cluster point 5 passes through corresponding through hole 7, and the top end face of each electrode cluster point 5 adopts laser welding technology to be connected accordingly
Electrode, with the thickness of insulating adhesive film layer 3 almost, electrode cluster point 5 exposes one from through hole 7 to the thickness of described generation electrode cluster point 5
A bit, allow the upper surface of electrode cluster point 5 just contact with the lower surface of respective electrode, simultaneously the thickness of electrode cluster point 5 according to its
The thickness of the insulating adhesive film layer 3 of cooperation sets, and as preferred, the thickness range of electrode cluster point 5 is 0.1-2000um.
The manufacture method of this assembly is as follows：
Step one：Mark series of features point at the back side of metal-foil circuits layer 4；
Step 2：With each characteristic point of step one as reference, sprayed by Supersonic quickly cooling in the front of metal-foil circuits layer 4
Painting technology generates electrode cluster point 5 according to design attitude；
Step 3：Electrode cluster point 5 is opened up in insulating adhesive film layer 3 according to the position of electrode cluster point 5 each in step 2
Through hole 7, by through hole 7 position alignment on the position of each electrode cluster point 5 and insulating adhesive film layer 3；
Step 4：Solar battery sheet 1, insulating adhesive film layer 3 and metal-foil circuits layer 4 are combined in one from top to bottom successively
Block, allows each electrode cluster point 5 to be placed in corresponding through hole 7, and the top end face of each electrode cluster point 5 is directed at corresponding solar energy simultaneously
Positive and negative electrode 2 on cell piece 1, and guarantee that electrode cluster point 5 is contacted with positive and negative electrode 2；
Step 5：The laser head 6 of laser scanning galvanometer system is placed on the bottom of metal-foil circuits layer 4 in step 5
Portion, the track of laser scanning galvanometer default is corresponding with the series of features point of the back side mark of metal-foil circuits layer 4, leads to
Cross laser head portion 6 and one by one laser output is carried out to metal-foil circuits layer 4 back position, by electrode cluster point 5 and corresponding positive negative electricity
Welding together of pole 2, realizes the electric Ohm connection of back contact solar cell component internal.
This utility model has advantages below：
1. supersonic cold gas spray technology is a kind of deposition technique of metal, and it utilizes pressure-air and special nozzle, will
The metal particle impact reaching critical velocity in matrix surface, formed a kind of metal to metal combine closely shaggy
Electrode cluster point, this technology destroys the bad conductive layer such as oxide layer and greasy dirt of original metal surface, and such as metal-foil circuits layer 4 is adopted
With aluminium foil, then just can directly destroy the alumina layer of aluminium foil surface, the new metal level of formation is formed with aluminium foil surface and is more than
10mpa adhesion, the adhesion producing when being sized substantially larger than using injection conductive silver glue of this adhesion, effectively prevent electricity
Separate between pole cluster point and metal-foil circuits layer surface, improve the stability of this assembly；
2. electrode cluster point and respective electrode are carried out by welded lap using laser welding technology, be connected firmly and electric conductivity
Excellent, life-time service will not produce the disengaging between electrode cluster point and electrode of solar battery, good reliability；Welding process simultaneously
No spillage of material, low production cost and efficiency high, the market competitiveness is larger.
Claims (3)
1. a kind of back contact solar cell assembly it is characterised in that：This component internal structure is from top to bottom followed successively by solar energy
Cell piece (1), insulating adhesive film layer (3) and metal-foil circuits layer (4), in the fixed some electrodes in the front of metal-foil circuits layer (4)
Cluster point (5), insulating adhesive film layer (3) opens up some through holes (7), the fixed positive and negative electrode in solar battery sheet (1) back side (2), often
One electrode cluster point (5) passes through corresponding through hole (7), and the top end face of each electrode cluster point (5) is connected corresponding electrode.
2. a kind of back contact solar cell assembly according to claim 1 it is characterised in that：Described electrode cluster point (5)
Generate in the front of metal-foil circuits layer (4) using supersonic cold gas spray technology, the thickness of this electrode cluster point (5) is 0.1-
2000um.
3. a kind of back contact solar cell assembly according to claim 1 it is characterised in that：Described electrode cluster point (5)
Top end face be connected corresponding electrode using laser welding technology.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621044668.7U CN206003790U (en) | 2016-09-09 | 2016-09-09 | A kind of back contact solar cell assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621044668.7U CN206003790U (en) | 2016-09-09 | 2016-09-09 | A kind of back contact solar cell assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206003790U true CN206003790U (en) | 2017-03-08 |
Family
ID=58192981
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621044668.7U Active CN206003790U (en) | 2016-09-09 | 2016-09-09 | A kind of back contact solar cell assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206003790U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106206822A (en) * | 2016-09-09 | 2016-12-07 | 山东拜科通新材料科技有限公司 | A kind of back contact solar cell assembly and manufacture method thereof |
| JP2021521633A (en) * | 2018-04-06 | 2021-08-26 | サンパワー コーポレイション | Laser-assisted metallization process for solar string |
-
2016
- 2016-09-09 CN CN201621044668.7U patent/CN206003790U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106206822A (en) * | 2016-09-09 | 2016-12-07 | 山东拜科通新材料科技有限公司 | A kind of back contact solar cell assembly and manufacture method thereof |
| JP2021521633A (en) * | 2018-04-06 | 2021-08-26 | サンパワー コーポレイション | Laser-assisted metallization process for solar string |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |