CN214083489U - Printing and slurry adding device for aluminum back surface field of crystalline silicon solar cell - Google Patents
Printing and slurry adding device for aluminum back surface field of crystalline silicon solar cell Download PDFInfo
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- CN214083489U CN214083489U CN202022958070.1U CN202022958070U CN214083489U CN 214083489 U CN214083489 U CN 214083489U CN 202022958070 U CN202022958070 U CN 202022958070U CN 214083489 U CN214083489 U CN 214083489U
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- thick liquids
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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
Abstract
The utility model discloses a printing of crystalline silicon solar cell aluminium back of body field adds thick liquid device, the on-line screen storage device comprises a base, the inside thick liquid bucket that is equipped with of base, thick liquid bucket outside is equipped with the shell, vacuole formation between shell and the thick liquid bucket, thick liquid bucket top is equipped with the top cap, the equal fixedly connected with curb plate in base top both sides, curb plate quantity sets up to two. The utility model discloses a motor output shaft rotates and drives the puddler and rotate, make spiral stirring vane and shaft-like stirring vane rotate, make thick liquids stirring, it is inhomogeneous to avoid the upper and lower layer thick liquids in the use, the scraper blade rotates around thick liquids bucket inner wall, scrape thick liquids bucket inner wall thick liquids down, make thick liquids bucket inner wall thick liquids can follow the thick liquids pipe outflow and utilized, it heats and keeps warm to thick liquids to be equipped with cavity and heat preservation, avoid thick liquids dry and hard, this device has heating and heat preservation function, the material is scraped to thick liquids bucket inner wall to the scraper blade simultaneously, reduce the consume of thick liquids, promote the printing quality.
Description
Technical Field
The utility model relates to a solar cell aluminium back of body field printing technology field, concretely relates to crystalline silicon solar cell aluminium back of body field printing adds thick liquid device.
Background
In the production process of the solar cell, screen printing is an important process, a positive electrode, a back electrode and an aluminum back field are respectively printed on the front surface and the back surface of the solar cell through the screen printing, the conversion efficiency of the solar cell can be improved by preparing the aluminum back field on the solar cell, the aluminum back field is usually formed by an alloy method, namely, special conductive aluminum paste is printed on the surface of the solar cell, a printed silicon wafer is put into a chain type sintering furnace with the peak temperature of more than 577 ℃ for sintering, aluminum silicon does not act when the temperature is lower than 577 ℃, aluminum atoms and silicon atoms are mutually diffused at an interface when the temperature is raised to 577 ℃, the melting speed of the aluminum silicon is accelerated along with the increase of time and the rise of the temperature, finally, an aluminum-silicon melt body is formed at the whole interface, a melt body consisting of 11.3 percent of silicon atoms and 88.7 percent of aluminum atoms is formed at the interface, a 2-3 um alloy layer, namely the aluminum back field, is formed at the interface after rapid cooling, the method can effectively improve the open-circuit voltage Voc and the short-circuit current Isc of the solar cell, thereby effectively improving the conversion efficiency of the solar cell.
However, the existing slurry barrel has no heating, heat preservation and stirring functions, so that slurry is easy to dry and hard, is condensed on the inner wall of the slurry barrel and the discharge hole, cannot flow out for use, causes waste of the slurry, and affects the printing quality.
Therefore, it is necessary to invent an aluminum back surface field printing and slurry adding device for a crystalline silicon solar cell to solve the above problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a printing of crystalline silicon solar cell aluminium back of body field adds thick liquid device, it rotates to drive the puddler through motor output shaft and rotates, make spiral stirring vane and shaft-like stirring vane rotate, make thick liquids stirring, avoid the upper and lower layer thick liquids inhomogeneous in the use, through being equipped with the scraper blade, the scraper blade rotates around thick liquids bucket inner wall, scrape thick liquids bucket inner wall thick liquids down, make thick liquids bucket inner wall thick liquids can be followed and lead the thick liquids pipe outflow and utilized, avoid the thick liquids extravagant, heat and keep warm to thick liquids through being equipped with cavity and heat preservation, avoid the thick liquids dry and hard, cause the thick liquids extravagant and influence printing quality, the device has heating and heat preservation function, the scraper blade scrapes the material to thick liquids bucket inner wall simultaneously, reduce the consume of thick liquids, promote printing quality, with the above-mentioned weak point in the solution technique.
In order to achieve the above object, the present invention provides the following technical solutions: a slurry adding device for aluminum back surface field printing of a crystalline silicon solar cell comprises a base, wherein a slurry barrel is arranged inside the base, a shell is arranged outside the slurry barrel, a cavity is formed between the shell and the slurry barrel, a top cover is arranged at the top of the slurry barrel, two side plates are fixedly connected to two sides of the top of the base, a top plate is fixedly connected between the tops of the two side plates, a motor is fixedly mounted at the bottom of the top plate, a stirring rod is arranged at the bottom of the motor, the top of the stirring rod is detachably connected with a motor output shaft, the stirring rod is movably sleeved with the top cover, fixing nails are fixedly connected to the inner wall of the slurry barrel, a filter screen is arranged inside the slurry barrel, fixing holes are formed in the top of the filter screen, the fixing nails are movably clamped with the fixing holes, the filter screen is movably sleeved with the stirring rod, and a support rod is fixedly connected to one side of the stirring rod, the one end fixedly connected with scraper blade of puddler is kept away from to the bracing piece, the equal fixedly connected with shaft-like stirring vane in puddler middle part both sides, puddler bottom fixedly connected with spiral stirring vane.
Preferably, one side of the top cover top is provided with a feed inlet, and the inner wall of the slurry barrel is a smooth surface.
Preferably, a slurry guide pipe is arranged at the bottom of the slurry barrel, and a flow control valve is arranged in the middle of the slurry guide pipe.
Preferably, the scraper blade is matched with the inner wall of the slurry barrel, and the scraper blade is made of a silica gel material.
Preferably, a water outlet is formed in the top of the outer surface of the slurry barrel and communicated with the cavity.
Preferably, one side of the bottom of the slurry barrel is provided with a water inlet which is communicated with the cavity.
Preferably, the outer surface of the shell is provided with a heat insulation layer, and the heat insulation layer is made of rock wool materials.
Preferably, the bottom of the base is fixedly connected with a supporting leg, and the bottom of the supporting leg is fixedly provided with a self-locking universal wheel.
In the technical scheme, the utility model provides a technological effect and advantage:
rotate through motor output shaft and drive the puddler and rotate, make spiral stirring vane and shaft-like stirring vane rotate, make thick liquids stirring, avoid the upper and lower floor's thick liquids inhomogeneous in the use, through being equipped with the scraper blade, the scraper blade rotates around thick liquids bucket inner wall, scrape down thick liquids bucket inner wall, make thick liquids bucket inner wall thick liquids can follow the thick liquids pipe outflow and utilized, avoid the thick liquids extravagant, heat and keep warm to thick liquids through being equipped with cavity and heat preservation, avoid the thick liquids dry and hard, cause the extravagant and influence printing quality of thick liquids, this device has heating and heat preservation function, the material is scraped to thick liquids bucket inner wall to the scraper blade simultaneously, reduce the consume of thick liquids, promote printing quality.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to these drawings.
Fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a sectional view of the present invention;
FIG. 3 is a perspective view of the filter screen of the present invention;
FIG. 4 is an enlarged view of a portion A of FIG. 2;
FIG. 5 is an enlarged view of the portion B of FIG. 2;
fig. 6 is an enlarged view of a portion C of fig. 2 according to the present invention.
Description of reference numerals:
1. a base; 2. a slurry barrel; 3. a housing; 4. a cavity; 5. a top cover; 6. a side plate; 7. a top plate; 8. a motor; 9. a stirring rod; 10. fixing nails; 11. filtering with a screen; 12. a fixing hole; 13. a support bar; 14. a squeegee; 15. a rod-shaped stirring blade; 16. a helical mixing blade; 17. a feed inlet; 18. a slurry guide pipe; 19. a flow control valve; 20. a water outlet; 21. a water inlet; 22. a heat-insulating layer; 23. supporting legs; 24. self-locking universal wheel.
Detailed Description
In order to make the technical solution of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings.
The utility model provides a crystalline silicon solar cell aluminum back surface printing slurry adding device as shown in figures 1-6, which comprises a base 1, a slurry barrel 2 is arranged inside the base 1, a shell 3 is arranged outside the slurry barrel 2, a cavity 4 is formed between the shell 3 and the slurry barrel 2, a top cover 5 is arranged on the top of the slurry barrel 2, side plates 6 are fixedly connected on both sides of the top of the base 1, the number of the side plates 6 is two, a top plate 7 is fixedly connected between the tops of the two side plates 6, a motor 8 is fixedly arranged at the bottom of the top plate 7, a stirring rod 9 is arranged at the bottom of the motor 8, the top of the stirring rod 9 is detachably connected with an output shaft of the motor 8, the stirring rod 9 is movably sleeved with the top cover 5, a fixing nail 10 is fixedly connected on the inner wall of the slurry barrel 2, a filter screen 11 is arranged inside the slurry barrel 2, a fixing hole 12 is arranged at the top of the filter screen 11, the fixing nail 10 is movably clamped with the fixing hole 12, the filter screen 11 is movably sleeved with the stirring rod 9, one side of the stirring rod 9 is fixedly connected with a supporting rod 13, one end of the supporting rod 13, far away from the stirring rod 9, is fixedly connected with a scraper 14, two sides of the middle part of the stirring rod 9 are both fixedly connected with rod-shaped stirring blades 15, the bottom of the stirring rod 9 is fixedly connected with a spiral stirring blade 16, when the stirring device is used, an operator pours stirred slurry into the slurry barrel 2, large particles are filtered by the filter screen 11, the motor 8 is started, the output shaft of the motor 8 rotates to drive the stirring rod 9 to rotate, the stirring rod 9 rotates to drive the spiral stirring blade 16 to rotate, so that the slurry at the bottom of the slurry barrel 2 is overturned to the upper side, the stirring rod 9 rotates to drive the rod-shaped stirring blade 15 to rotate, so that the slurry is uniformly stirred, and meanwhile, the stirring rod 9 rotates to drive the scraper 14 to rotate around the inner wall of the slurry barrel 2, scrape 2 inner wall thick liquids of thick liquids bucket, make 2 inner wall thick liquids of thick liquids bucket can follow the thick liquid pipe 18 outflow and utilized, avoid thick liquids extravagant, this device has heating and heat preservation function, and scraper blade 14 scrapes the material to 2 inner walls of thick liquids bucket simultaneously, reduces the consume of thick liquids, promotes printing quality.
Further, in above-mentioned technical scheme, 5 top one side of top cap is equipped with charge door 17, 2 inner walls of thick liquids bucket set up to the smooth surface, and operating personnel pours the thick liquids bucket 2 into through charge door 17 with the thick liquids that have stirred, and 2 inner walls of thick liquids bucket set up to the smooth surface and make things convenient for 2 inner walls of thick liquids bucket thick liquids to pour out entirely, improve the thick liquids utilization ratio.
Further, in the above technical scheme, the bottom of the slurry barrel 2 is provided with a slurry guide pipe 18, the middle part of the slurry guide pipe 18 is provided with a flow control valve 19, when in use, the slurry guide pipe 18 is connected and fixed between a scraper and an ink return knife in a printing head, and the flow control valve 19 is adjusted to enable the slurry to uniformly enter the printing screen plate, so that the slurry discharging speed is conveniently controlled.
Further, in above-mentioned technical scheme, scraper blade 14 and 2 inner walls phase-matchs of thick liquids bucket, scraper blade 14 is made by the silica gel material, and puddler 9 rotates and drives scraper blade 14 and rotates around 2 inner walls of thick liquids bucket, scrapes off 2 inner wall thick liquids of thick liquids bucket, makes 2 inner wall thick liquids of thick liquids bucket can follow slurry guide pipe 18 outflow and utilized, avoids the thick liquids extravagant.
Further, in the above technical scheme, a water outlet 20 is arranged at the top of the outer surface of the slurry barrel 2, the water outlet 20 is communicated with the cavity 4, hot water is discharged from the water outlet 20, and the dry and hard of the slurry is prevented from affecting the printing quality.
Further, in the above technical scheme, a water inlet 21 is formed in one side of the bottom of the slurry barrel 2, the water inlet 21 is communicated with the cavity 4, hot water is introduced into the cavity 4 from the water inlet 21 to heat the slurry, and the influence on the printing quality due to dryness and hardness of the slurry is prevented.
Further, in above-mentioned technical scheme, 3 surfaces of shell are equipped with heat preservation 22, heat preservation 22 is made by the rock wool material, and heat preservation 22 that the rock wool material was made keeps warm to thick liquids, prevents that thick liquids from doing hard, influences printing quality.
Further, in the technical scheme, the bottom of the base 1 is fixedly connected with a supporting leg 23, a self-locking universal wheel 24 is fixedly mounted at the bottom of the supporting leg 23, the supporting leg 23 supports the device, and the self-locking universal wheel 24 is convenient for the device to move, so that time and labor are saved.
This practical theory of operation:
referring to the accompanying drawings 1-6, in use, the slurry guide pipe 18 is connected and fixed between the scraper and the ink return blade in the printing head, the operator pours the stirred slurry into the slurry barrel 2 through the feed opening 17, filters large particles through the filter screen 11, guides hot water from the water inlet 21 into the cavity 4, heating the slurry, discharging hot water from the water outlet 20, starting the motor 8, rotating the output shaft of the motor 8 to drive the stirring rod 9 to rotate, rotating the stirring rod 9 to drive the spiral stirring blade 16 to rotate, so that the slurry at the bottom of the slurry barrel 2 is overturned to the upper side, rotating the stirring rod 9 to drive the rod-shaped stirring blade 15 to rotate, so that the slurry is uniformly stirred, meanwhile, the stirring rod 9 rotates to drive the scraper 14 to rotate around the inner wall of the slurry barrel 2, so that the slurry on the inner wall of the slurry barrel 2 is scraped off, and then the flow control valve 19 is adjusted to enable the slurry to uniformly enter the printing screen.
While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the present invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.
Claims (8)
1. The utility model provides a crystalline silicon solar cell aluminium back of body field printing adds thick liquid device, includes base (1), its characterized in that: the slurry barrel is characterized in that a slurry barrel (2) is arranged inside the base (1), a shell (3) is arranged outside the slurry barrel (2), a cavity (4) is formed between the shell (3) and the slurry barrel (2), a top cover (5) is arranged at the top of the slurry barrel (2), side plates (6) are fixedly connected to two sides of the top of the base (1), two side plates (6) are fixedly connected to a top plate (7) between the tops of the side plates (6), a motor (8) is fixedly mounted at the bottom of the top plate (7), a stirring rod (9) is arranged at the bottom of the motor (8), the top of the stirring rod (9) is detachably connected with an output shaft of the motor (8), the stirring rod (9) is movably sleeved with the top cover (5), fixing nails (10) are fixedly connected to the inner wall of the slurry barrel (2), a filter screen (11) is arranged inside the slurry barrel (2), fixed orifices (12) have been seted up at filter screen (11) top, staple (10) and fixed orifices (12) activity joint, filter screen (11) cup joint with puddler (9) activity, puddler (9) one side fixedly connected with bracing piece (13), the one end fixedly connected with scraper blade (14) of puddler (9) are kept away from in bracing piece (13), the equal fixedly connected with shaft-like stirring vane (15) in puddler (9) middle part both sides, puddler (9) bottom fixedly connected with spiral stirring vane (16).
2. The crystalline silicon solar cell aluminum back surface field printing and pasting device as claimed in claim 1, wherein: one side of the top cover (5) is provided with a feed inlet (17), and the inner wall of the slurry barrel (2) is a smooth surface.
3. The crystalline silicon solar cell aluminum back surface field printing and pasting device as claimed in claim 1, wherein: the slurry barrel is characterized in that a slurry guide pipe (18) is arranged at the bottom of the slurry barrel (2), and a flow control valve (19) is arranged in the middle of the slurry guide pipe (18).
4. The crystalline silicon solar cell aluminum back surface field printing and pasting device as claimed in claim 1, wherein: scraper blade (14) and thick liquids bucket (2) inner wall phase-match, scraper blade (14) are made by the silica gel material.
5. The crystalline silicon solar cell aluminum back surface field printing and pasting device as claimed in claim 1, wherein: the top of the outer surface of the slurry barrel (2) is provided with a water outlet (20), and the water outlet (20) is communicated with the cavity (4).
6. The crystalline silicon solar cell aluminum back surface field printing and pasting device as claimed in claim 1, wherein: a water inlet (21) is formed in one side of the bottom of the slurry barrel (2), and the water inlet (21) is communicated with the cavity (4).
7. The crystalline silicon solar cell aluminum back surface field printing and pasting device as claimed in claim 1, wherein: the outer surface of the shell (3) is provided with a heat preservation layer (22), and the heat preservation layer (22) is made of rock wool materials.
8. The crystalline silicon solar cell aluminum back surface field printing and pasting device as claimed in claim 1, wherein: the base (1) bottom fixedly connected with supporting leg (23), supporting leg (23) bottom fixed mounting has auto-lock universal wheel (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022958070.1U CN214083489U (en) | 2020-12-11 | 2020-12-11 | Printing and slurry adding device for aluminum back surface field of crystalline silicon solar cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022958070.1U CN214083489U (en) | 2020-12-11 | 2020-12-11 | Printing and slurry adding device for aluminum back surface field of crystalline silicon solar cell |
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| Publication Number | Publication Date |
|---|---|
| CN214083489U true CN214083489U (en) | 2021-08-31 |
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| CN202022958070.1U Active CN214083489U (en) | 2020-12-11 | 2020-12-11 | Printing and slurry adding device for aluminum back surface field of crystalline silicon solar cell |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114294958A (en) * | 2021-12-09 | 2022-04-08 | 艾斯迪(芜湖)材料技术有限公司 | Continuous aluminum alloy centralized melting device capable of being used as needed |
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2020
- 2020-12-11 CN CN202022958070.1U patent/CN214083489U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114294958A (en) * | 2021-12-09 | 2022-04-08 | 艾斯迪(芜湖)材料技术有限公司 | Continuous aluminum alloy centralized melting device capable of being used as needed |
| CN114294958B (en) * | 2021-12-09 | 2024-03-01 | 艾斯迪(芜湖)材料技术有限公司 | Continuous aluminum alloy centralized melting device capable of being used immediately after being needed |
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