CN205542811U - A electric current extraction device that is used for aluminium base flexibility to electrically conduct backplate - Google Patents
A electric current extraction device that is used for aluminium base flexibility to electrically conduct backplate Download PDFInfo
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- CN205542811U CN205542811U CN201620342457.5U CN201620342457U CN205542811U CN 205542811 U CN205542811 U CN 205542811U CN 201620342457 U CN201620342457 U CN 201620342457U CN 205542811 U CN205542811 U CN 205542811U
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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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Abstract
The utility model discloses an electric current extraction device that is used for aluminium base flexibility to electrically conduct backplate, including pressing in proper order at one solar wafer layer 1, insulating cement rete 3, aluminium foil conducting layer 4 and solar cell back sheet rete 5, offer a plurality of conductive through holes 9 on insulating cement rete 3, inject conductive silver adhesive 2 into in each conductive through hole 9, offer a plurality of through -holes that hold on solar cell back sheet rete 5, each draws a bunch point 6 through supersonic speed cold spray technique depositing electrode in holding the through -hole, weld conductive strips 7 on bunch point 6 is drawn forth to each electrode, with current output to the photovoltaic terminal box 8 in. Through the electrode draws a bunch point and set up electrical connection between aluminium foil and conductive strips, has solved and can't carry out the welding problem with conductive strips because of the existence of aluminium foil backplate oxide layer, let the aluminium foil successfully replace the copper foil and become for reality, greatly reduced the out -of -the -way contact assembly's of solar energy manufacturing cost.
Description
Technical field
This utility model relates to area of solar cell, a kind of electric current ejector for aluminum-base flexible conductive backings.
Background technology
Solar energy back contacts component technology is the electric current export technique being applied to photovoltaic solar cell assembly of a kind of new high-efficiency, this technology is compared with traditional solar energy electric current export technique: can effectively avoid the light capture-effect of traditional cell panel surface grid line, can effectively reduce the current drain that electric current conveying process resistance causes, being avoided that the quality caused because of human weld is unstable, this technology can improve the electric energy conversion ratio about 7% of solar components simultaneously.
The back veneer material of main flow is all as conductive base with Copper Foil now, due to Copper Foil involve great expense, market price fluctuations big, be unfavorable for controlling the manufacturing cost of solar energy back contacts assembly.
Use aluminium foil to replace Copper Foil as conductive layer, can effectively reduce manufacturing cost.But due to the chemical property that aluminum is active, expose aerial aluminum surface, layer of oxide layer in the 2-3 second, can be formed.This oxide layer causes aluminium foil cannot weld together with conductive strips, after being i.e. transmitted in the conductive backings of aluminum base by solar battery sheet electricity stream, it is impossible to be transmitted on the photovoltaic junction box of outside.
Summary of the invention
This utility model is for above weak point, the present invention provides a kind of electric current ejector for aluminum-base flexible conductive backings, draw bunch point by electrode between aluminium foil and conductive strips, set up electrical connection, solve and cannot carry out Welding Problems with conductive strips because of the existence of aluminium foil backboard oxide layer, allow aluminium foil successfully replace Copper Foil and become reality, greatly reduce the manufacturing cost of solar energy back contacts assembly.
This utility model solves its technical problem and be the technical scheme is that and include from top to bottom being sequentially laminated the solaode lamella at a piece, insulating adhesive film layer, aluminium foil conductive layer and solar cell backboard film layer, insulating adhesive film layer is offered some conductive through holes, conductive silver glue is injected in each conductive through hole, some receiving openings are offered at solar cell backboard film layer, in each receiving opening, form electrode by supersonic cold gas spray deposition techniques draw bunch point, described extraction at each electrode welds conductive strips on bunch point, by conductive strips, electric current is exported in photovoltaic junction box.
Forming electrode by supersonic cold gas spray deposition techniques in each receiving opening draw bunch point owing to devising, allow conductive strips be welded on electrode and draw on bunch point, solving aluminium foil surface cannot the problem of welding；On solar cell backboard film layer, some receiving openings are offered simultaneously because devise, directly form electrode toward enforcement supersonic cold gas spray deposition techniques in this receiving opening and draw bunch point, therefore this receiving opening provides receiving carrier for implementing supersonic cold gas spray technology, facilitates supersonic cold gas spray technology implementation；The electric current produced by solaode lamella passes sequentially through conductive silver glue, aluminium foil conductive layer, electrode extraction bunch point and conductive strips, on the photovoltaic junction box that finally output is outside, this electric current ejector achieves the derivation of the electric current with aluminium foil conductive layer, in solar energy back contacts component technology, aluminium foil is allowed to replace Copper Foil to become possibility as conductive layer, greatly reduce the cost of manufacture of solar energy back contacts assembly, substantially increase the market competitiveness of this kind of assembly simultaneously.
This utility model devises, the described a diameter of 0.1-500um of the metal particle for supersonic cold gas spray technology.
This utility model devises, and described electrode draws the rough surface of bunch point.
This utility model devises, and described metal particle is gold, silver, copper, nickel or alloy material.
This utility model devises, and described metal particle is spherical copper powder, forms, by supersonic cold gas spray deposition techniques, the electrode that thickness is 30-50um and draws bunch point.
This utility model devises, and it can be soldering, soldering, ultrasonic bonding, laser welding, friction welding (FW) or electric resistance welding that conductive strips draw welding of bunch point with electrode.
Accompanying drawing explanation
Fig. 1 show structural representation of the present utility model.
Detailed description of the invention
With specific embodiment, this utility model is described in detail below in conjunction with the accompanying drawings:
nullIt is illustrated in figure 1 a specific embodiment of the present utility model，It is sequentially laminated the solaode lamella 1 at a piece including by high-temperature vacuum pressuring method、Insulating adhesive film layer 3、Aluminium foil conductive layer 4 and solar cell backboard film layer 5，Insulating adhesive film layer 3 is offered some conductive through holes 9，Conductive silver glue 2 is injected in each conductive through hole 9，Electric current produced by solaode lamella 1 is transmitted on aluminium foil conductive layer 4 by conductive silver glue 2，Some receiving openings are offered at solar cell backboard film layer 5，In each receiving opening, form shaggy electrode by supersonic cold gas spray deposition techniques draw bunch point 6，Described supersonic cold gas spray technology uses the spherical copper powder of a diameter of 0.1-500um of metal particle electrode that formation of deposits thickness is 30-50um to draw bunch point 6，Described extraction at each electrode connects conductive strips 7 by soldering on bunch point 6，The photovoltaic junction box 8 outside other end connection of conductive strips 7，Electric current on aluminium foil conductive layer 4 is drawn a bunch point 6 by electrode and is transmitted on conductive strips 7，It is transmitted on photovoltaic junction box 8 by conductive strips 7 again.
In this example, described supersonic cold gas spray technology uses metal can also be gold, silver, nickel or alloy material.
In this example, conductive strips 7 are drawn welding of bunch point 6 with electrode and be can also is that soldering, ultrasonic bonding, laser welding, friction welding (FW) or electric resistance welding.
This utility model has an advantage:
1. supersonic cold gas spray technology is the deposition technique of a kind of metal, it utilizes pressure-air and special nozzle, the metal particle being up to critical velocity impacts at matrix surface, the shaggy electrode combined closely forming a kind of metal to metal draws bunch point, this technology destroys the bad conductive layers such as oxide layer and the greasy dirt of original metal surface, can directly destroy the alumina layer on aluminium foil backboard in this example, the new metal level formed and aluminium foil back plate surface are formed more than 10mpa adhesion, the electrode utilizing this technology to be formed draws bunch some rough surface, increase contact area；The Schottky barrier reducing contact resistance, eliminate between contact surface is all played actively impact by above feature.
2, the instantaneous temperature spraying matrix using supersonic cold gas spray fabrication techniques electrode to draw bunch point is less than 150 °, and sendible temperature is the highest 70 °, and noise is little and workable, it is simple to realize.
3, utilize supersonic cold gas spray technology to spray spherical copper powder on aluminium foil output point thus form the electrode that thickness is 30-50um and draw bunch point, the rosette that aluminium foil draws bunch point, conductive strips and outside by the electrode of spraying is electrically connected, and contact resistance can be less than 1 milliohm.
4, owing to devising receiving opening, supersonic cold gas spray technology is utilized directly to be sprayed on by metallic particles in this hole, this through hole is the receiving carrier that spraying operation provides sprayed particle, spraying position effectively can be positioned simultaneously, accomplish with a definite target in view, be greatly saved the usage amount of metallic particles.
Claims (6)
1. the electric current ejector for aluminum-base flexible conductive backings, it is characterized in that: include from top to bottom being sequentially laminated the solaode lamella (1) at a piece, insulating adhesive film layer (3), aluminium foil conductive layer (4) and solar cell backboard film layer (5), insulating adhesive film layer (3) is offered some conductive through holes (9), conductive silver glue (2) is injected in each conductive through hole (9), some receiving openings are offered at solar cell backboard film layer (5), in each receiving opening, form electrode by supersonic cold gas spray deposition techniques draw bunch point (6), described extraction at each electrode welds conductive strips (7) on bunch point (6), by conductive strips (7), electric current is exported in photovoltaic junction box (8).
A kind of electric current ejector for aluminum-base flexible conductive backings the most according to claim 1, it is characterised in that: a diameter of 0.1-500um of metal particle for supersonic cold gas spray technology.
A kind of electric current ejector for aluminum-base flexible conductive backings the most according to claim 1, it is characterised in that: described electrode draws the rough surface of bunch point (6).
A kind of electric current ejector for aluminum-base flexible conductive backings the most according to claim 2, it is characterised in that: described metal particle is gold, silver, copper, nickel or alloy material.
A kind of electric current ejector for aluminum-base flexible conductive backings the most according to claim 4, it is characterised in that: described metal particle is spherical copper powder, forms, by supersonic cold gas spray deposition techniques, the electrode that thickness is 30-50um and draws bunch point (6).
A kind of electric current ejector for aluminum-base flexible conductive backings the most according to claim 1, it is characterised in that: it is soldering, soldering, ultrasonic bonding, laser welding, friction welding (FW) or electric resistance welding that conductive strips (7) draw welding of bunch point (6) with electrode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620342457.5U CN205542811U (en) | 2016-04-22 | 2016-04-22 | A electric current extraction device that is used for aluminium base flexibility to electrically conduct backplate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620342457.5U CN205542811U (en) | 2016-04-22 | 2016-04-22 | A electric current extraction device that is used for aluminium base flexibility to electrically conduct backplate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205542811U true CN205542811U (en) | 2016-08-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620342457.5U Active CN205542811U (en) | 2016-04-22 | 2016-04-22 | A electric current extraction device that is used for aluminium base flexibility to electrically conduct backplate |
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| CN (1) | CN205542811U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105895710A (en) * | 2016-04-22 | 2016-08-24 | 山东拜科通新材料科技有限公司 | Current extraction device for aluminium base flexible conductive backboard |
| CN110690295A (en) * | 2019-08-29 | 2020-01-14 | 泰州隆基乐叶光伏科技有限公司 | Back contact solar cell module production method and back contact solar cell module |
| CN111183027A (en) * | 2017-10-06 | 2020-05-19 | 帝斯曼知识产权资产管理有限公司 | Conductive backsheet comprising aluminum and metal layers |
| US11742150B2 (en) * | 2020-06-05 | 2023-08-29 | Panasonic Intellectual Property Management Co., Ltd. | Solid electrolytic capacitor including an exterior body that covers a capacitor element and method of manufacturing the same |
-
2016
- 2016-04-22 CN CN201620342457.5U patent/CN205542811U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105895710A (en) * | 2016-04-22 | 2016-08-24 | 山东拜科通新材料科技有限公司 | Current extraction device for aluminium base flexible conductive backboard |
| CN111183027A (en) * | 2017-10-06 | 2020-05-19 | 帝斯曼知识产权资产管理有限公司 | Conductive backsheet comprising aluminum and metal layers |
| CN111183027B (en) * | 2017-10-06 | 2023-09-01 | 赢润太阳能解决方案有限公司 | Conductive backsheet comprising aluminum and metal layers |
| CN110690295A (en) * | 2019-08-29 | 2020-01-14 | 泰州隆基乐叶光伏科技有限公司 | Back contact solar cell module production method and back contact solar cell module |
| US11742150B2 (en) * | 2020-06-05 | 2023-08-29 | Panasonic Intellectual Property Management Co., Ltd. | Solid electrolytic capacitor including an exterior body that covers a capacitor element and method of manufacturing the same |
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