CN202495447U - Novel solar cell photovoltaic welding strip device - Google Patents
Novel solar cell photovoltaic welding strip device Download PDFInfo
- Publication number
- CN202495447U CN202495447U CN2012201405285U CN201220140528U CN202495447U CN 202495447 U CN202495447 U CN 202495447U CN 2012201405285 U CN2012201405285 U CN 2012201405285U CN 201220140528 U CN201220140528 U CN 201220140528U CN 202495447 U CN202495447 U CN 202495447U
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- CN
- China
- Prior art keywords
- solar cell
- photovoltaic welding
- novel solar
- welding
- copper strips
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Abstract
The utility model relates to a novel solar cell photovoltaic welding strip device. The welding strip device comprises a longitudinally extending strip body, the strip body comprises copper strips, tinning layers are arranged outside the copper strips, and only one layer of the copper strip is arranged at a U-shaped turning position of the novel solar cell photovoltaic welding strip device. During the processes of welding operation and long term application of the novel solar cell photovoltaic welding strip device, the occurrence possibility of poor welding is avoided, and the stability of the solar cell is enhanced.
Description
Technical field
The utility model relates to a kind of welder of used for solar batteries, relates to the invention of a kind of novel solar battery photovoltaic welding belt device aspect or rather.
Background technology
Solar cell photovoltaic welding device is the welder that is used on the photovoltaic module, mainly plays the effect that connects conduction.The critical technical parameter of welding device comprises solderability, tensile strength, elongation, resistivity.Welding device commonly used at present is that the method that is coated with tin through heat is prepared from the copper strip surface of a kind of high-elongation, high tensile, high conduction.Often in solar cell layout process, the position that can occur vertically crossing, the processing method of prior art is two photovoltaic welding belts to be 90 degree put, two is overlapped, welds then.The method that prior art is handled welding device U type rotation angle position often causes the overlapping part rosin joint easily; And in the overlapping region owing to touch the difference of electric soldering bit distance; The welding temperature height near electric soldering bit can occur, and welding temperature below is low, two welding coefficient of thermal expansions are different; Directly cause after cooling, overlapping part has residual stress.The method of handling welding device U type turning site like Fig. 1 prior art is that two of wherein adjacent two weldings in three weldings is overlapped; Weld, will form at two overlapping parts 2 that each parts is coated with tin layer 12, copper strips 11, is coated with tin layer 12 like this, copper strips 11, be coated with the sandwich structure of tin layer 12.This structure causes the generation of rosin joint easily.The photovoltaic welding belt device is in the operating state of sun direct projection for a long time, and residual stress causes sealing-off the most at last, and the solar cell that is connected is opened circuit.The generation of residual stress and rosin joint all can have a strong impact on the sex work steady in a long-term of solar cell.
This shows that above-mentioned existing photovoltaic welding belt device still has many defectives, and demands urgently improving.
Because the defective that above-mentioned existing photovoltaic welding belt device exists; The design people is based on being engaged in this type of product design manufacturing for many years; Long-pending have abundant practical experience and professional knowledge, actively studies innovation, in the hope of founding a kind of novel solar battery photovoltaic welding belt device that improves molding structure; Can improve the general molding structure of existing conventional welding device on the market, make it have more competitiveness.Through constantly research, design, and after studying sample and improvement repeatedly, found out the utility model of true tool practical value finally.
Summary of the invention
The utility model technical problem underlying to be solved is; Overcome the defective that existing welding device exists; And a kind of solar cell photovoltaic welding device of new structure is provided; Overcome rosin joint appears in existing solar cell photovoltaic welding device in U type turning site defective, made it reduce the rosin joint probability that occurs in the overlapping welding process of U type turning site, improved the reliability of solar cell.
The utility model solves its technical problem underlying and adopts following technical scheme to realize.According to the novel solar battery photovoltaic welding belt device that the utility model proposes, comprise the belt body of longitudinal extension, belt body comprises copper strips, is provided with in the copper strips outside and is coated with the tin layer, novel solar battery photovoltaic welding belt device has only one deck copper strips at place, U type turning site.
The utility model solves its technical problem and can also adopt following technical measures further to realize.
Before the thickness of described copper strips be 50 microns to 350 microns.
Before the described thickness that is coated with the tin layer be 10 microns to 50 microns.
The utility model compared with prior art has tangible advantage and beneficial effect.Can know that by above technical scheme the utility model is because to adopt technique scheme be that a monoblock Copper Foil is produced the copper strips that comprises U type turning site according to the layout of solar cell through the method for punching press, and then carry out heat and be coated with tin; Perhaps Copper Foil is carried out heat earlier and be coated with tin, punching press then, the solar cell photovoltaic welding of producing has so just avoided U type turning site to need the situation of the overlapped welding of adjacent two welding devices.Meanwhile, the solderability of welding device is good, tensile strength is high, and elongation and resistivity all can fully satisfy the practical applications needs.
Above-mentioned explanation is merely the general introduction partly of the utility model technical scheme characteristic; For making the professional and technical personnel can more know the technological means of understanding the utility model; And can implement according to the content of specification, below with the preferred embodiment of the utility model and conjunction with figs. specify as after.
The embodiment of the utility model is provided by following examples and accompanying drawing thereof in detail.
Description of drawings
Fig. 1 is the cross section structure sketch map of prior art welding device U type turning site.
Fig. 2 is the schematic top plan view of the utility model.
Among the figure, belt body 1, copper strips 11 is coated with tin layer 12, overlapping part 2.
Embodiment
Below in conjunction with accompanying drawing and preferred embodiment, to its embodiment, structure, characteristic and the effect thereof that proposes according to the utility model, specify as after.
See also shown in Figure 2; The novel solar battery photovoltaic welding belt device of the utility model is produced the copper strips that comprises U type turning site according to the layout of applied solar cell through the method for punching press, and then carries out the zinc-plated formation of Rapid Thermal and be coated with the tin layer; Perhaps carry out Copper Foil heat earlier and be coated with tin; Carry out punching press then, like this at place, U type turning site, the turning site of just adjacent two each other vertical belt bodies 1 has only one deck copper strips; The thickness of copper strips is 50 microns to 350 microns, and the thickness that is coated with the tin layer is 10 microns to 50 microns.
The above; It only is the preferred embodiment of the utility model; Be not that the utility model is done any pro forma restriction; Every technical spirit according to the utility model all still belongs in the scope of the utility model technical scheme any simple modification, equivalent variations and modification that above embodiment did.
Claims (3)
1. novel solar battery photovoltaic welding belt device; The belt body that comprises longitudinal extension; Belt body comprises copper strips, is provided with in the copper strips outside and is coated with the tin layer, and it is characterized in that: wherein said novel solar battery photovoltaic welding belt device has only one deck copper strips at place, U type turning site.
2. novel solar battery photovoltaic welding belt device according to claim 1 is characterized in that: the thickness of wherein said copper strips is 50 microns to 350 microns.
3. novel solar battery photovoltaic welding belt device according to claim 1 and 2 is characterized in that: the wherein said thickness that is coated with the tin layer is 10 microns to 50 microns.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201405285U CN202495447U (en) | 2012-04-06 | 2012-04-06 | Novel solar cell photovoltaic welding strip device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201405285U CN202495447U (en) | 2012-04-06 | 2012-04-06 | Novel solar cell photovoltaic welding strip device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202495447U true CN202495447U (en) | 2012-10-17 |
Family
ID=47001660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201405285U Expired - Fee Related CN202495447U (en) | 2012-04-06 | 2012-04-06 | Novel solar cell photovoltaic welding strip device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202495447U (en) |
-
2012
- 2012-04-06 CN CN2012201405285U patent/CN202495447U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121017 Termination date: 20170406 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |