CN102794246B - A kind of for wrapping wrapping up in pulp grinder structure and wrapping up in paste-making method of electrocondution slurry on conductive filament surface - Google Patents

A kind of for wrapping wrapping up in pulp grinder structure and wrapping up in paste-making method of electrocondution slurry on conductive filament surface Download PDF

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Publication number
CN102794246B
CN102794246B CN201210244007.9A CN201210244007A CN102794246B CN 102794246 B CN102794246 B CN 102794246B CN 201210244007 A CN201210244007 A CN 201210244007A CN 102794246 B CN102794246 B CN 102794246B
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China
Prior art keywords
wrap
conductive filament
oblique crank
pulp grinder
grinder structure
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Expired - Fee Related
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CN201210244007.9A
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Chinese (zh)
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CN102794246A (en
Inventor
秋晨
武宇涛
马勇
王磊
武建康
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HANGZHOU SALISHI TECHNOLOGY Co Ltd
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HANGZHOU SALISHI TECHNOLOGY Co Ltd
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Priority to CN201210244007.9A priority Critical patent/CN102794246B/en
Publication of CN102794246A publication Critical patent/CN102794246A/en
Priority to PCT/CN2013/078788 priority patent/WO2014012437A1/en
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L31/02Details
    • H01L31/0224Electrodes
    • H01L31/022408Electrodes for devices characterised by at least one potential jump barrier or surface barrier
    • H01L31/022425Electrodes for devices characterised by at least one potential jump barrier or surface barrier for solar cells
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/50Photovoltaic [PV] energy

Abstract

The present invention relates to a kind of for wrapping wrapping up in pulp grinder structure and wrapping up in paste-making method of electrocondution slurry on conductive filament, described in wrap up in pulp grinder structure and comprise: motor; Base; Cylinder oblique crank Z, it to be supported on described base and to be connected to described motor, and described cylinder oblique crank Z can be driven by motor and rotate on described base; Feeding device, for providing described electrocondution slurry to described cylinder oblique crank Z.This mechanism can not only realize electrocondution slurry to be rolled on conductive filament by phased manner, and can produce the conductive filament wrapping electrocondution slurry of different-diameter.Utilize this to wrap up in pulp grinder structure and wrap up in paste-making method and make thin grid line there is following characteristics: the amount that can reduce required electrocondution slurry when front electrode makes, thus reduce cost of manufacture; The width that also can reduce the thin grid line of front electrode increases thin grid line height, improves its electric conductivity, reduces the shading-area of front electrode, reduces solar cell in the fragment rate of producing and in encapsulation process, improves photoelectric transformation efficiency and the solar cell yield rate of solar cell.

Description

A kind of for wrapping wrapping up in pulp grinder structure and wrapping up in paste-making method of electrocondution slurry on conductive filament surface
Technical field
The present invention relates to the manufacture field of front electrode of solar battery, particularly relate to a kind of for carrying out discontinuity to conductive filament and wrap wrapping up in pulp grinder structure and wrapping up in paste-making method of conductive paste in the process manufacturing front electrode of solar battery.
Background technology
As is known to the person skilled in the art, making apparatus and the method for front electrode is included in the manufacture process of electrode of solar battery, and the method making grid line at present in the substrate front of solar cell mainly adopts the method for serigraphy, wherein, described substrate has completed PN junction diffusion technique, deposit antireflective coating and make backplate, the silicon solar cell substrate of electric field, wherein, first highly viscous slurry mixer is stirred, adopt screen printing technique that slurry is printed on substrate front again, after sintering, obtain grid line, said method utilize exactly screen process press by electrocondution slurry by screen painting on cell piece, screen process press is utilized slurry to be printed on the following shortcoming of existence of the method for substrate front sintering formation grid line: (1) cost of manufacture is high, (2) the thin grid line wider (reaching 90 μm-110 μm) that screen printing technique is obtained is utilized, (3) under the prerequisite ensureing electric conductivity, thin grid line is difficult to reach certain narrow degree, and the grid line printed also exists the quality problems such as disconnected grid, empty print, wider just because of thin grid line, and cause printing electrode shading-area greatly, cell photoelectric conversion efficiency is restricted, (4) and to use in screen printing process larger pressure just can make electrocondution slurry can cross screen painting on cell piece, cause inevitable cell piece pressure fragment, thus too increase enterprise's manufacturing cost.
Just because of the many disadvantages existed in traditional silk-screen printing technique, thus have and need to provide a kind of equipment solving above-mentioned deficiency to carry out alternative screen process press to manufacture the solar energy electrode structure at right side more become more meticulous, the present invention's one just related in a kind of the said equipment wraps up in pulp grinder structure, and this wrap up in slurry mechanism structure simple, be easy to processing and operation, low cost of manufacture, and of the present inventionly wrap up in pulp grinder structure owing to adopting, make to use the present invention to wrap up in pulp grinder body plan make to wrap up in slurry conductive filament (i.e. thin grid line) width less than serigraphy, thus its sensitive surface taken can be reduced, expand sensitive surface, improve conversion efficiency.
In addition, also need to provide one to wrap up in pulp grinder structure, electrocondution slurry can be wrapped on conductive filament by this pulp grinder structure of wrapping up in by phased manner equably, thin grid line and the conductive filament one section of producing thinner front electrode of solar battery wrap up in one section, slurry without slurry realization simply, it also can control the conductive filament length being wrapped with electrocondution slurry, be unlikely to make the conductive filament with electrocondution slurry be attached to the edge of solar battery sheet, because the end being attached to the conductive filament on cell piece does not have electrocondution slurry, the short circuit of cell piece front electrode and backplate when sintering can be prevented, avoid leaking electricity and the power loss of formation.
In addition, described in wrap up in conductive filament on conductive filament clamping device that pulp grinder structure can make in wire drawing excessively without electrocondution slurry, thus described clamping device is not polluted by electrocondution slurry, and this wraps up in the use amount that pulp grinder structure can save electrocondution slurry, reduces manufacturing cost.
On the other hand, this pulp grinder structure of wrapping up in can also regulate the diameter wrapping up in the rear conductive filament of slurry easily, thus makes the width of thin grid line (being namely wrapped with the conductive filament of electrocondution slurry) facilitate adjustable.
Summary of the invention
An object of the present invention is, when providing one to utilize conductive filament to make solar battery sheet front electrode, that carries out wrapping up in slurry for conductive filament wraps up in pulp grinder structure, electrocondution slurry can wrap on conductive filament by this pulp grinder structure of wrapping up in by phased manner equably, and thin grid line and the conductive filament one section of producing thinner front electrode of solar battery wrap up in one section, slurry without slurry realization simply.
Another object of the present invention is, there is provided a kind of control to be wrapped with the conductive filament length of electrocondution slurry wrap up in pulp grinder structure, this wraps up in pulp grinder structure can not be attached to solar battery sheet edge with the conductive filament of electrocondution slurry, because the end being attached to the conductive filament on cell piece does not have electrocondution slurry, the short circuit of cell piece front electrode and backplate when sintering can being prevented, avoiding leaking electricity and the power loss of formation.
An also object of the present invention is, there is provided one to wrap up in pulp grinder structure, it can make conductive filament on the conductive filament clamping device in wire drawing excessively without electrocondution slurry, thus described clamping device is not polluted by electrocondution slurry, and this wraps up in the use amount that pulp grinder structure can save electrocondution slurry, reduce manufacturing cost.
An also object of the present invention is, after providing a kind of thickness wrapping up in slurry by adjustment to regulate conductive filament to wrap up in slurry diameter wrap up in pulp grinder structure, thus the width of thin grid line on solar battery sheet can be controlled, raising photoelectric transformation efficiency.
In order to overcome the deficiency of electrode fabrication in existing solar cell metallization processes, especially the deficiency in front electrode manufacture process, the technical solution adopted in the present invention is: a kind ofly on conductive filament, wrap up in pulp grinder structure for being wrapped by electrocondution slurry, it is characterized in that, described in wrap up in pulp grinder structure and comprise: motor; Base; Cylinder oblique crank Z, it to be supported on described base and to be connected to described motor, and described cylinder oblique crank Z can be driven by described motor and rotate on described base; Feeding device, for providing described electrocondution slurry to described cylinder oblique crank Z.
Alternatively, described in wrap up in pulp grinder structure and also comprise jackscrew device, it is for contacting described conductive filament jack-up with described cylinder oblique crank Z when needs wrap up in slurry, and being left behind by described conductive filament when without the need to wrapping up in slurry does not contact with described cylinder oblique crank Z.
Alternatively, wrap up in pulp grinder structure described in and also comprise separation combs, for described conductive filament uniform parallel is spaced apart.
Alternatively, wrap up in pulp grinder structure and also comprise and force sizing device, for the gap coordinating formation one parallel with described cylinder oblique crank Z described in.
Alternatively, described in wrap up in pulp grinder structure and also comprise lash adjusting device, it is connected with described cylinder oblique crank Z, and cylinder oblique crank Z can be driven to move relative to described sizing device of forcing, thus adjusts described cylinder oblique crank Z and force the gap length between sizing device.
Alternatively, described in wrap up in pulp grinder structure and also comprise lash adjusting device, it is connected with described sizing device of forcing, and can drive and force sizing device to move relative to described cylinder oblique crank Z, thus forces the gap length between sizing device and described cylinder oblique crank Z described in adjustment.
Preferably, the scope in described gap is 0-0.5mm.
Preferably, the adjustable range in described gap is 0-25mm.
Preferably, described lash adjusting device is fine setting platform, and described fine setting platform can support described cylinder oblique crank Z and move left and right along being parallel to conductive filament draw direction.
Preferably, described lash adjusting device is fine setting platform, forces sizing device to move left and right along being parallel to conductive filament draw direction described in described fine setting platform can support.
Preferably, described jackscrew device comprises cylinder, epipleural and lower side panel, and described epipleural and lower side panel are symmetrical arranged up and down, and described cylinder is arranged on below described lower side panel for jack-up lower side panel or epipleural of leaving behind.
Preferably, described cylinder oblique crank Z is connected with described motor by shaft coupling.
Preferably, between described separation combs comb, the number in gap and spacing can adjust based on the radical of required described conductive filament and spacing, and described separation combs can be metal combs.
Preferably, when described jackscrew device jack-up, the plane tangent of described conductive filament and cylinder oblique crank Z, and there is certain contact arc length each other.
Preferably, sizing device is forced to be the device of forcing pulpboard or forcing slurry post or other gaps that formation one can be coordinated parallel with described cylinder oblique crank Z described in.
The present invention also comprises a kind of utilization and wraps up in pulp grinder structure wraps up in slurry method to conductive filament, and it is characterized in that, described method comprises: the top or the bottom that described conductive filament are stretched across described cylinder oblique crank Z; Described feeding device adds electrocondution slurry on described cylinder oblique crank Z; Start cylinder oblique crank Z described in described electric machine rotation, make described cylinder oblique crank Z wraps electrocondution slurry equably; The surface of described conductive filament with described cylinder oblique crank Z is contacted, thus described conductive filament is wrapped electrocondution slurry.
Preferably, wrap up in pulp grinder structure and also comprise jackscrew device, utilize described jackscrew device by described conductive filament jack-up or leave behind, thus the surface of described conductive filament jack-up with described cylinder oblique crank Z is contacted or disengage, realize discontinuity and wrap up in slurry.
Preferably, wrap up in pulp grinder structure and also comprise and force sizing device, utilize and force sizing device to limit the thickness of the electrocondution slurry that described cylinder oblique crank Z wraps.
Pulp grinder structure of wrapping up in of the present invention with the beneficial effect wrapping up in paste-making method is: can wrap electrocondution slurry uniformly on conductive filament, and can realize wrapping up in slurry to conductive filament discontinuity; Another beneficial effect of the present invention is: the diameter after conductive filament wraps electrocondution slurry is adjustable and facilitate adjustable, to produce thinner front electrode of solar battery thin grid line and conductive filament one section to wrap up in one section, slurry to realize simple etc. without slurry, and discontinuity is wrapped up in slurry and also can be made to clamp the hold assembly that conductive filament realizes wire drawing action and do not polluted by electrocondution slurry on the other hand; Also having on the one hand, because the end being attached to the conductive filament on cell piece does not have electrocondution slurry, the short circuit of cell piece front electrode and backplate when sintering can being prevented, avoid leaking electricity and the power loss of formation.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram that pulp grinder structure is wrapped up in the present invention;
Fig. 2 is the front view that pulp grinder structure is wrapped up in the present invention;
Fig. 3 is the sectional view along A-A line in Fig. 2;
Fig. 4 is the overall structure schematic diagram wrapping up in pulp grinder structure of another embodiment of the present invention;
Fig. 5 is the front view wrapping up in pulp grinder structure of another embodiment of the present invention;
Fig. 6 is the sectional view along A-A line in Fig. 5.
Reference numeral in figure: the 1. conductive filament not wrapping up in electrocondution slurry; 2. wrapped up in the conductive filament of electrocondution slurry; 3. circular shaft; 4. force sizing device; 5. separation combs; 6. epipleural; 7. lower side panel; 8. cylinder; 9. a box; 10. lash adjusting device; 11. motor cabinets; 12. bearing blocks; 13. motors; 14. electrocondution slurry interpolations place; 15. gaps; 16. wire-drawing mechanism hold assemblies; 17. jackscrew device epipleural handling nuts; 18. shaft couplings; 19. bases.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is further described.
According to one embodiment of the present invention, as shown in Figure 1, wrap up in pulp grinder structure 100 and comprise base 19, base 19 has base plate and support, cylinder oblique crank Z 3 is supported in the opening of support, one end of cylinder oblique crank Z 3 is connected on motor 13 by shaft coupling 18, motor 13 is fixed on motor cabinet 11, wrap up in pulp grinder structure 100 and also comprise feeding device (not shown), electrocondution slurry can be added at top 14 place of cylinder oblique crank Z 3 by this feeding device, by adding electrocondution slurry at reinforced place 14, utilize motor 13 rotary cylinder oblique crank Z 3, thus the outer surface of cylinder oblique crank Z 3 wraps electrocondution slurry equably, now stretching conductive filament 1 from the bottom of cylinder oblique crank Z 3 by tangent with the bottom arc surface of cylinder oblique crank Z 3, there is certain contact arc length between the two, thus the electrocondution slurry on the outer surface of cylinder oblique crank Z 3 is wrapped equably the conductive filament 2 conductive filament 1 being formed and wraps electrocondution slurry.
Wrap up in pulp grinder structure 100 can also comprise and force sizing device 4, sizing device 4 is forced to be arranged on the support of base 19, this forces sizing device 4 for coordinating with cylinder oblique crank Z 3 to limit a parallel gap 15 between sizing device 4 and cylinder oblique crank Z 3 forcing, and the scope of this gap size size is at 0-0.5mm.As shown in Figure 3, Fig. 3 is along the sectional view wrapping up in the A-A of pulp grinder structure shown in Fig. 2, the gap 15 of forcing between sizing device 4 and cylinder oblique crank Z 3 can be found out, this gap 15 for limiting the thickness of the electrocondution slurry wrapped on cylinder oblique crank Z 3, thus defines the thickness by cylinder oblique crank Z 3, electrocondution slurry being wrapped the electrocondution slurry on conductive filament 1.
Wrap up in pulp grinder structure 100 and also comprise lash adjusting device 10, lash adjusting device can be such as that fine setting platform etc. can regulate the device of forcing relative spacing between sizing device 4 and cylinder oblique crank Z 3, as shown in Figure 1, lash adjusting device 10 is arranged on the two ends of base 19, and it has bearing block 12, bearing block 12 is also for further support cylinder oblique crank Z 3, because carrier openings is set to the width that cylinder oblique crank Z 3 can be made to move left and right wherein, lash adjusting device 10 can move left and right relative to forcing in sizing device 4 by the opening of support cylinder oblique crank Z 3 in base 19, thus the size of forcing gap between sizing device 4 and cylinder oblique crank Z 3 can be adjusted, lash adjusting device is to cylinder oblique crank Z 3 and force adjustable clearance scope between sizing device 4 at 0-25mm, the thickness of the electrocondution slurry that cylinder oblique crank Z 3 wraps is controlled by adjusting play size, thus the thickness of the electrocondution slurry wrapped on conductive filament 1 can be controlled further.
Above-mentionedly force sizing device 4, another kind of setting can also be had between lash adjusting device 10 and cylinder oblique crank Z 3, namely sizing device 4 is forced to be arranged on lash adjusting device 10, and cylinder oblique crank Z 3 is no longer supported on the bearing block 12 of lash adjusting device 10, this cylinder oblique crank Z 3 is only fixed on the support of base 19, the lash adjusting device 10 being arranged on cylinder oblique crank Z 3 two ends can drive disposed thereon sizing device 4 of forcing to move left and right relative to cylinder oblique crank Z 3, thus the size in gap between sizing device 4 and cylinder oblique crank Z 3 is forced in adjustment, therefore adjust cylinder oblique crank Z 3 wrap up in slurry and conductive filament 1 wrap up in slurry thickness.Generally, surface and the conductive filament 1 of cylinder oblique crank Z 3 are tangent, and have certain contact arc length between it; In the process that the face of cylinder is rotated, pull conductive filament 1, conductive filament 1 will wrap electrocondution slurry equably, wrap the diameter after electrocondution slurry and jointly determined by the thickness of electrocondution slurry on the diameter of conductive filament and the face of cylinder; In conductive filament diameter one timing, owing to forcing gap width between sizing device 4 and cylinder oblique crank Z by adjustment, the thickness of electrocondution slurry on the adjustable face of cylinder, therefore just adjustable conductive filament wraps the diameter after electrocondution slurry.
From foregoing description, above-mentioned adjustment of the present invention forces the technical scheme of gap width size between sizing device 4 and cylinder oblique crank Z 3 that lash adjusting device can be adopted to drive cylinder oblique crank Z 3 to realize relative to forcing sizing device to move, also lash adjusting device 10 can be used to drive force sizing device 4 to move relative to cylinder oblique crank Z 3 to realize, can certainly be both can relative to each other movement to realize gap adjustment.
Wrap up in pulp grinder structure 100 and also comprise separation combs 5, separation combs 5 is arranged on conductive filament 1 side not wrapping up in slurry, its comb is towards upper and equally spacedly to separate, every root conductive filament 1 passes from the gap between comb, thus make conductive filament 1 be evenly spaced apart with certain spacing by comb, separation combs 5 can be metal combs etc., and the number in the gap in metal combs between tooth and spacing depend on radical and the spacing of conductive filament 1.Wrap up in pulp grinder structure and also there is jackscrew device, jackscrew device is also positioned at the side of the conductive filament 1 not wrapping up in slurry, this jackscrew mechanism comprises epipleural 6, lower side panel 7 and cylinder 8, cylinder 8 is positioned at below lower side panel 7, it may be used for jack-up lower side panel 7 or lower side panel 7 of leaving behind, and can certainly be used for epipleural 6 of leaving behind.Conductive filament 1 discontinuity can be wrapped electrocondution slurry by jackscrew device, make do not contacting with the cylinder oblique crank Z 3 wrapping up in slurry without the need to wrapping up in slurry conductive filament 1 of leaving behind, thus realize not wrapping up in slurry, when needing to wrap up in slurry, jack-up conductive filament 1 contacts with the cylinder oblique crank Z 3 wrapping up in slurry, conductive filament 1 is tangent with the arc surface of cylinder oblique crank Z 3, thus wraps electrocondution slurry.As can be seen from Figure 3, the position of the lower side panel of silk box 9, jackscrew device and the blessing parts 16 of wire-drawing frame lower than the bottom tangent position of cylinder oblique crank Z 3, thus can utilize epipleural 6 and lower side panel 7 to carry out discontinuity to leave behind or regular conductive filament 1.
The concrete operation method step that the discontinuity realizing conductive filament 1 wraps up in slurry is as follows: the epipleural 6 first unloading jackscrew device, the hold assembly 16 of wire-drawing mechanism is utilized not wrap up in electrocondution slurry conductive filament 1 by the lower side panel 7 of jackscrew device by what extract from silk box 9, gap between the comb again conductive filament 1 being directed across separation combs 5 is by even for conductive filament 1 and parallel spaced apart, and guide conductive filament 1 through the bottom of cylinder oblique crank Z 3 further, utilize lash adjusting device such as to finely tune size that platform 10 adjusts gap 15 as shown in Figure 3, sufficient electrocondution slurry is added in electrocondution slurry interpolation place 14 at feeding device, starter motor 13 rotary cylinder oblique crank Z 3 makes electrocondution slurry wrap uniformly on the outer surface of cylinder oblique crank Z 3 subsequently.As shown in Figure 3, electrocondution slurry conductive filament 1 will do not wrapped up in pass from bottom, the face of cylinder 3, the conductive filament 1 not wrapping up in electrocondution slurry is clamped in the hold assembly 16 of wire-drawing mechanism, load onto the epipleural 6 of jackscrew mechanism, utilize pneumatic, jack-up cylinder 8, make not wrap up in electrocondution slurry conductive filament 1 in the tangent contact in the face of cylinder 3, and have certain contact arc length, now wire-drawing mechanism starts wire drawing, will be formed and wrap up in electrocondution slurry conductive filament 2, make electrocondution slurry be rolled in the conductive filament 2 electrocondution slurry conductive filament 1 being formed and wraps up in slurry uniformly.Jackscrew mechanism loads and unloads nut 17 by cylinder 8, jackscrew mechanism epipleural 6, jackscrew mechanism lower side panel 7 and jackscrew mechanism epipleural and forms, in certain moment of drawing process, as needs herein conductive filament without slurry, conductive filament 1 then can drag down and make it depart from the face of cylinder 3 by jackscrew mechanism, when continuing wire drawing, conductive filament does not just have slurry herein.Drawing process certain moment, as needs herein conductive filament wrap slurry uniformly, conductive filament 1 then can be risen and make it again tangent with the face of cylinder 3 by jackscrew mechanism, and has one section of contact arc length, continue wire drawing time, conductive filament just can wrap slurry uniformly herein.Wherein, the operation that cylinder oblique crank Z 3 rotates forward (namely identical with wire-drawing direction with the linear velocity direction, point of contact of conductive filament 1) or reverse (namely contrary with wire-drawing direction with the linear velocity direction, point of contact of conductive filament 1) wraps up in slurry to conductive filament 1 is all feasible.
Owing to manufacturing the front electrode of solar battery sheet, namely manufacture in the technical process of thin grid line (conductive filament 2 wrapping up in slurry being also about to equidistantly arrangement is adhered to then drying sintering formation on cell piece) on cell piece, on conductive filament must one section wrapped electrocondution slurry, one section without electrocondution slurry, interval like this.Specifically, as manufactured 156 polycrystalline cell pieces of solar cell, its size is generally 156*156mm, its conductive filament needing 152-156mm to grow has wrapped electrocondution slurry and has then pasted in its surface, and other fractions exceeding its size are without the need to wrapping electrocondution slurry, conductive filament without the part of electrocondution slurry is clamped by hold assembly 16 and is pulled conductive filament to wrap up in slurry, so just achieve one section and be wrapped with slurry, a bit of for clamping the part not wrapping up in slurry, such one side both can reduce the use amount of electrocondution slurry, cost-saving; The hold assembly that clamping conductive filament also can be made on the other hand to realize wire drawing action is not polluted by electrocondution slurry; Also having on the one hand, because the end being attached to the conductive filament on cell piece does not have electrocondution slurry, the short circuit of cell piece front electrode and backplate when sintering can being prevented, avoid leaking electricity and the power loss of formation.Therefore, for achieving the above object, as mentioned above, the cylinder oblique crank Z 3 of slurry is wrapped up in the present invention side at conductive filament adds the jackscrew device of an automation, conductive filament jack-up can make the face of cylinder of conductive filament and cylinder oblique crank Z tangent and have certain contact arc length by this device within a period of time, thus realizes wrapping up in slurry; Within a period of time, conductive filament is left behind, make conductive filament disengaging with the face of cylinder of electrocondution slurry, thus do not wrap up in slurry.Just can realize conductive filament one section by this jackscrew device and have slurry, one section without slurry, and length with presence or absence of slurry realizes by automatic control device, namely can control the jack-up of jackscrew device or operation of leaving behind by control device.
The conductive filament mentioned in technique scheme can be spun gold, filamentary silver, copper wire, silver-plated, copper wire or other there is the B alloy wire of electric conductivity, and having the above conductive filament of other coating, also can be that other have the fiber of electric conductivity.The diameter range that conductive filament 1 is is 0.001-0.1 mm, and conductive filament 2 diameter that conductive filament 1 is formed after wrapping electrocondution slurry is at 0-0.2mm.Certainly, obtaining solar cell in the present invention can be polycrystalline battery and single crystal battery, also can be that other need to make the photovoltaic cell of metallic electrode.
The present invention also has another kind of embodiment, as shown in Figure 4, cylinder oblique crank Z 3 to be arranged in base 19 and to be supported on bearing block 12, one section is connected to motor 13 by shaft coupling 18, motor 13 is arranged on motor cabinet 11, motor can drive cylinder oblique crank Z 3 to rotate by driving shaft coupling 18, in base 19, there is downward-sloping inclined-plane, make to be arranged on the cylinder oblique crank Z 3 in base 19 and there is interval on the inclined-plane in base, electrocondution slurry is added at 14 places as shown in Figure 6 herein by feeding device, motor 13 drives cylinder oblique crank Z 3 to rotate thus its outer surface wraps electrocondution slurry equably, now conductive filament 1 pulls conductive filament 1 to contact from the top of cylinder oblique crank Z 3 through intersecting vertically with cylinder oblique crank Z 3 by the blessing parts 16 of wire-drawing frame, certain contact arc length is had at their surface contact place, thus by electrocondution slurry from cylinder oblique crank Z 3 wrap conductive filament 1 formed wrap up in slurry conductive filament 2.
Wrap up in pulp grinder structure also to comprise and force sizing device, as shown in Figure 6 force sizing device 4, this forces sizing device 4 can have the concave arc shape face matched with cylinder oblique crank Z 3 towards cylinder oblique crank Z side, gap is had between this concave arc shape face and surperficial convex surface of cylinder oblique crank Z 3, it is fine setting platform that this gap can use lash adjusting device 10(such as) adjust, sizing device 4 will be forced to be connected to lash adjusting device 10, lash adjusting device 10 can drive along wire-drawing direction forces sizing device to move left and right, thus the width size in gap between sizing device 4 and cylinder oblique crank Z 3 is forced in adjustment.After in interpolation, slurry place 14 adds slurry, gap 15 can be utilized to wrap up in slurry thickness to what limit cylinder oblique crank Z 3 outer surface, thus can limit the thickness being rolled in conductive filament 1 spreading mass further, this gap size-adjustable can for the size described in above-described embodiment.
Wrap up in pulp grinder structure and also comprise jackscrew device, the lower side panel 7 that jackscrew device comprises cylinder, epipleural 6 and is oppositely arranged with epipleural, cylinder is arranged on below lower side panel 7, the conductive filament that jackscrew device is positioned at cylinder oblique crank Z 3 does not wrap up in slurry side, and the position of its lower side panel 7 is a little more than the tangent line height of the top arc surface of cylinder oblique crank Z 3, certainly, the position of the blessing parts 16 of silk box 9 and wire-drawing frame is also a little more than the tangent line height of the top arc surface of cylinder oblique crank Z 3, and the operation of jackscrew device can realize carrying out discontinuity to conductive filament 1 and wrap up in slurry.Realizing the method concrete steps that discontinuity wraps up in slurry is: the epipleural 6 first unloading jackscrew device, the electrocondution slurry conductive filament 1 of not wrapping up in extracted from silk box 7 is placed on jackscrew mechanism lower side panel 7, in the separation combs 5 put it into again, add sufficient slurry in electrocondution slurry interpolation place 14, utilize motor 13 slewing circle cylinder 3 that slurry is rolled on the face of cylinder 3 uniformly.As Fig. 6, pass not wrapping up in the top of electrocondution slurry conductive filament 1 from cylinder oblique crank Z 3, the conductive filament 1 not wrapping up in electrocondution slurry is clamped in the hold assembly 16 of wire-drawing mechanism, then the epipleural 6 of jackscrew mechanism is loaded onto, utilize pneumatic means (also electric device can be used) cylinder of leaving behind, make not wrap up in electrocondution slurry conductive filament 1 to contact with the face 3 of cylinder oblique crank Z is tangent, and there is certain contact arc length, now wire-drawing mechanism starts wire drawing, will be formed and wrap up in electrocondution slurry conductive filament 2, electrocondution slurry is rolled on electrocondution slurry conductive filament 1 uniformly.Due in drawing process, on conductive filament 1 must one section have slurry, one section without slurry, as 156 polycrystalline batteries, the conductive filament needing 152-156mm long has slurry, and other parts, without slurry, to be clamped by hold assembly 16 without the conductive filament of slurry fractions and pulled conductive filament, such one side both can reduce the use amount of electrocondution slurry, and the parts that clamping conductive filament also can be made to realize wire drawing action are not polluted by electrocondution slurry; On the other hand, because the end being attached to the conductive filament on cell piece does not have slurry, the short circuit of cell piece front electrode and backplate when sintering can be prevented.In certain moment of drawing process, as needs, conductive filament is without slurry herein, and conductive filament 1 can be risen the surface making it depart from cylinder oblique crank Z 3 by the lower side panel 7 of jackscrew device, and when continuing wire drawing, conductive filament does not just have slurry herein.In certain moment of drawing process, as needs herein conductive filament wrap slurry uniformly, the epipleural of jackscrew device then conductive filament 1 can be dragged down make its again with the plane tangent of cylinder oblique crank Z 3, and having one section of contact arc length, when continuing wire drawing, conductive filament just can wrap slurry uniformly herein, so repeatedly operate, conductive filament one section can be made to be wrapped with electrocondution slurry, to make front electrode for being pasted onto on cell piece, and not wrap up in a section of slurry for wire-drawing operation.
All parts in the present invention in different detailed description of the invention, when the spirit of instructing without prejudice to the present invention and invention, can carry out exchanging and reconfiguring, the pulp grinder structure of wrapping up in obtained thus drops in protection scope of the present invention equally.Those of ordinary skill in the art also have different modes to change the parameter of disclosed embodiment by recognizing, all fall in the spirit and scope of the claims in the present invention.

Claims (19)

1. wrap up in a pulp grinder structure for what wrap electrocondution slurry on conductive filament surface, it is characterized in that, described in wrap up in pulp grinder structure and comprise:
Motor;
Base;
Cylinder oblique crank Z, it to be supported on described base and to be connected to described motor, and described cylinder oblique crank Z can be driven by described motor and rotate on described base;
Feeding device, for providing described electrocondution slurry to described cylinder oblique crank Z.
2. according to claim 1ly wrap up in pulp grinder structure, it is characterized in that, described pulp grinder structure of wrapping up in also comprises jackscrew device, and it is for contacting described conductive filament jack-up with described cylinder oblique crank Z when needs wrap up in slurry, and being left behind by described conductive filament when without the need to wrapping up in slurry does not contact with described cylinder oblique crank Z.
3. according to claim 1ly wrap up in pulp grinder structure, it is characterized in that, described in wrap up in pulp grinder structure and also comprise separation combs, for by spaced apart for described conductive filament uniform parallel ground.
4. according to claim 1ly wrap up in pulp grinder structure, it is characterized in that, described in wrap up in pulp grinder structure and also comprise and force sizing device, for the gap coordinating formation one parallel with described cylinder oblique crank Z.
5. according to claim 4ly wrap up in pulp grinder structure, it is characterized in that, described pulp grinder structure of wrapping up in also comprises lash adjusting device, it is connected with described cylinder oblique crank Z, cylinder oblique crank Z can be driven to move relative to described sizing device of forcing, thus adjust described cylinder oblique crank Z and described gap length of forcing between sizing device.
6. according to claim 4ly wrap up in pulp grinder structure, it is characterized in that, described pulp grinder structure of wrapping up in also comprises lash adjusting device, it is connected with described sizing device of forcing, can drive and force sizing device to move relative to described cylinder oblique crank Z, thus force the gap length between sizing device and described cylinder oblique crank Z described in adjustment.
7. according to claim 4ly wrap up in pulp grinder structure, it is characterized in that, the scope in described gap is 0-0.5mm.
8. according to claim 5 or 6, wrap up in pulp grinder structure, it is characterized in that, the adjustable range in described gap is 0-25mm.
9. according to claim 5ly wrap up in pulp grinder structure, it is characterized in that, described lash adjusting device is fine setting platform, and described fine setting platform can support described cylinder oblique crank Z and move left and right along being parallel to conductive filament draw direction.
10. according to claim 6ly wrap up in pulp grinder structure, it is characterized in that, described lash adjusting device is fine setting platform, forces sizing device to move left and right along being parallel to conductive filament draw direction described in described fine setting platform can support.
11. according to claim 2ly wrap up in pulp grinder structure, it is characterized in that, described jackscrew device comprises drive unit, epipleural and lower side panel, and described epipleural and lower side panel are symmetrical arranged up and down, and described drive unit is arranged on below described lower side panel for jack-up lower side panel or epipleural of leaving behind.
12. jackscrew devices wrapped up in pulp grinder structure according to claim 11, is characterized in that, its drive unit can be pneumatic, electronic or the drive unit of the function of jackscrew up and down for realizing jackscrew device such as V belt translation.
13. according to claim 1ly wrap up in pulp grinder structure, and it is characterized in that, described cylinder oblique crank Z is connected with described motor by shaft coupling.
14. according to claim 3ly wrap up in pulp grinder structure, it is characterized in that, between described separation combs comb, the number in gap and spacing can adjust based on the radical of required described conductive filament and spacing, and described separation combs can be metal combs.
15. according to claim 2ly wrap up in pulp grinder structure, it is characterized in that, the plane tangent of described conductive filament and cylinder oblique crank Z, and have certain contact arc length each other.
16. according to claim 4ly wrap up in pulp grinder structure, it is characterized in that, described in force sizing device to be the device of forcing pulpboard or forcing slurry post or other gaps that formation one can be coordinated parallel with described cylinder oblique crank Z.
17. 1 kinds wrap the method for electrocondution slurry on conductive filament surface, and it is characterized in that, described method comprises:
Described conductive filament is stretched across top or the bottom of cylinder oblique crank Z;
Feeding device adds electrocondution slurry on described cylinder oblique crank Z;
Starter motor rotates described cylinder oblique crank Z, makes described cylinder oblique crank Z wraps electrocondution slurry equably;
The surface of described conductive filament with described cylinder oblique crank Z is contacted, thus described conductive filament is wrapped electrocondution slurry.
18. methods according to claim 17, it is characterized in that, wrap up in pulp grinder structure and also comprise jackscrew device, utilize described jackscrew device by described conductive filament jack-up or leave behind, thus the surface of described conductive filament jack-up with described cylinder oblique crank Z is contacted or disengage, realize discontinuity and wrap up in slurry.
19. methods according to claim 17, is characterized in that, wrap up in pulp grinder structure and also comprise and force sizing device, utilize and force sizing device to limit the thickness of the electrocondution slurry that described cylinder oblique crank Z wraps.
CN201210244007.9A 2012-07-16 2012-07-16 A kind of for wrapping wrapping up in pulp grinder structure and wrapping up in paste-making method of electrocondution slurry on conductive filament surface Expired - Fee Related CN102794246B (en)

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PCT/CN2013/078788 WO2014012437A1 (en) 2012-07-16 2013-07-04 Paste applying mechanism for applying conductive paste on surface of conductive wire and paste applying method

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