CN113732724A - Solar cell bus bar and online production device thereof - Google Patents
Solar cell bus bar and online production device thereof Download PDFInfo
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- CN113732724A CN113732724A CN202110989730.9A CN202110989730A CN113732724A CN 113732724 A CN113732724 A CN 113732724A CN 202110989730 A CN202110989730 A CN 202110989730A CN 113732724 A CN113732724 A CN 113732724A
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 28
- 239000002184 metal Substances 0.000 claims abstract description 128
- 229910052751 metal Inorganic materials 0.000 claims abstract description 128
- 239000000463 material Substances 0.000 claims abstract description 66
- 238000003466 welding Methods 0.000 claims abstract description 38
- 230000004907 flux Effects 0.000 claims abstract description 35
- 238000005476 soldering Methods 0.000 claims abstract description 35
- 238000005520 cutting process Methods 0.000 claims abstract description 32
- 238000004080 punching Methods 0.000 claims abstract description 14
- 239000011248 coating agent Substances 0.000 claims abstract description 4
- 238000000576 coating method Methods 0.000 claims abstract description 4
- 238000003825 pressing Methods 0.000 claims description 11
- 238000005086 pumping Methods 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 4
- 230000006872 improvement Effects 0.000 description 8
- 229910000679 solder Inorganic materials 0.000 description 5
- 101001073212 Arabidopsis thaliana Peroxidase 33 Proteins 0.000 description 2
- 101001123325 Homo sapiens Peroxisome proliferator-activated receptor gamma coactivator 1-beta Proteins 0.000 description 2
- 102100028961 Peroxisome proliferator-activated receptor gamma coactivator 1-beta Human genes 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P23/00—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass
- B23P23/06—Metal-working plant comprising a number of associated machines or apparatus
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Abstract
The invention discloses a solar cell bus bar and an online production device thereof, wherein the online production device of the solar cell bus bar comprises a workbench, a pretreatment area, a feeding area, a punching area and a traction cutting area which are sequentially arranged; the pretreatment area is arranged on one side of the workbench and is used for flattening the whole roll of packaged metal thin material; the feeding area is used for conveying the flattened metal sheet to a workbench; the stamping area is used for stamping the metal sheet on the workbench into a preset shape; the traction cutting area is arranged on the other side of the workbench and used for coating the soldering flux on the punched metal thin material, cutting the metal thin material, pulling the cut metal thin material out of the workbench and drawing the cut metal thin material to the surface of the battery piece for welding. The online production device disclosed by the invention is high in production efficiency, and the prepared bus bar is high in precision and high in yield.
Description
Technical Field
The invention relates to the technical field of solar energy, in particular to a solar cell bus bar and an online production device thereof.
Background
The back contact solar cell has no grid line on the front surface, so that the efficiency is far higher than that of the conventional PERC solar cell, and the back contact solar cell is a future technical development direction. Compared with the conventional PERC solar cell, the back contact solar cell has the advantages that the welding mode and the welding material are different greatly. At present, the back contact solar cell in the market mostly adopts a bus bar welding mode to realize series connection, and bus bars in different shapes are needed for different PAD points of the cell.
In the existing bus bar stamping device, the metal sheet packaged in a whole roll is directly pulled to the stamping device for stamping without treatment, and the prepared bus bar has low precision and is easy to warp. In addition, the bus bar formed by stamping needs to be manually transported to a battery piece welding area for welding, and soldering flux needs to be manually added for welding, so that the existing method needs a large amount of labor and is low in production efficiency.
In addition, the existing bus bar structure cannot be compatible with back contact batteries with different PAD point designs, cold solder joint and offset solder joint easily occur, and the welding yield is low.
Disclosure of Invention
The invention aims to solve the technical problem of providing a solar cell bus bar which has strong compatibility and high welding quality and is not easy to cause insufficient welding or welding deviation.
The technical problem to be solved by the invention is to provide an on-line production device for solar cell bus bars, which has high production efficiency, high precision of the prepared bus bars and high yield.
In order to solve the technical problem, the invention provides an online production device of a solar cell bus bar, which comprises a workbench, a pretreatment area, a feeding area, a punching area and a traction cutting area, wherein the pretreatment area, the feeding area, the punching area and the traction cutting area are sequentially arranged; the pretreatment area is arranged on one side of the workbench and is used for flattening the whole roll of packaged metal thin material; the feeding area is used for conveying the flattened metal sheet to a workbench; the stamping area is used for stamping the metal thin material on the workbench into a preset shape, wherein the stamping area comprises a stamping module, the stamping module comprises a stamping die and a vacuumizing assembly, the stamping die comprises an upper die and a lower die, the upper die is arranged above the metal thin material, the lower die is arranged below the metal thin material, and the vacuumizing assembly is connected with the lower die so that the metal thin material is tightly attached to the lower die; the traction cutting area is arranged on the other side of the workbench and used for coating the soldering flux on the punched metal thin material, cutting the metal thin material, pulling the cut metal thin material out of the workbench and drawing the cut metal thin material to the surface of the battery piece for welding.
As an improvement of the scheme, the tensile force applied to the metal thin material in the pretreatment area is 10-15N;
the pretreatment zone includes a vertical stretching module and a clamping device, the clamping device is used for clamping the metal sheet, and the vertical stretching module vertically stretches the metal sheet upwards or downwards.
As an improvement of the above scheme, the vacuum pumping assembly comprises a vacuum pipeline and a vacuum pump, the lower die is provided with a plurality of through holes, and the vacuum pipeline is connected with the lower die so as to enable the metal thin material to be tightly attached to the lower die through the through holes;
the vacuum degree of the vacuumizing assembly is-50 to-70 Kpa.
As an improvement of the above scheme, the stamping module further comprises a third driving device, and the third driving device is connected with the upper die and used for driving the upper die to move up and down;
the third driving device is a stamping cylinder, and the working pressure of the stamping cylinder is 0.6-0.8 Mpa.
As an improvement of the scheme, the stamping area comprises at least two sets of stamping die sets.
As an improvement of the scheme, the traction cutting area comprises a cutting device and a traction device, the cutting device is arranged at the tail end of the workbench, and the traction device is arranged behind the cutting device;
the traction cutting area further comprises a soldering flux smearing structure, the soldering flux smearing structure comprises a soldering flux box and sponge, liquid soldering flux is filled in the soldering flux box, the sponge is arranged at the bottom of the soldering flux box, and the soldering flux in the soldering flux box is smeared on the punched metal thin material through the sponge.
As an improvement of the above scheme, the feeding area comprises a feeding hole, a pressing device and a first driving device, the feeding hole is arranged at the front end of the workbench, and the first driving device is connected with the whole roll of metal thin material and used for driving the whole roll of metal thin material to rotate so as to enable the flattened metal thin material to enter the feeding hole; the pressing device is arranged above the workbench and used for pressing the metal thin materials.
As an improvement of the scheme, the feeding area further comprises a lifting wheel assembly, the lifting wheel assembly is arranged between the feeding hole and the clamping device and comprises a lifting wheel assembly, a fixed wheel assembly and a second driving device, the leveled metal thin material is perpendicular to the workbench after passing through the lifting wheel assembly, and the metal thin material is parallel to the workbench after passing through the fixed wheel assembly.
Correspondingly, the invention also provides a solar cell bus bar which is prepared by the online production device of the solar cell bus bar and comprises a body and welding convex points, wherein the body is provided with a plurality of hollow parts, the hollow parts are in a long strip shape and are arranged along the length direction of the body, and the welding convex points are arranged at two sides of the body.
As an improvement of the scheme, the area of the hollow part accounts for 40% -50% of the total area of the bus bar.
The implementation of the invention has the following beneficial effects:
according to the on-line production device of the solar cell bus bar, the whole roll of packaged metal thin material is firstly flattened through the pretreatment area, so that the metal thin material entering the area to be punched is flat and has no radian, and the punching precision of the metal thin material and the yield of the bus bar are effectively improved. In addition, the invention arranges the soldering flux smearing structure in the traction cutting area to smear a layer of soldering flux on the surface of the metal sheet, so that the soldering flux is smeared on the bus bar in the production stage, thereby reducing the subsequent welding process and improving the welding production efficiency.
According to the stamping area, the vacuumizing assembly connected with the lower die is arranged, and the metal sheet is tightly attached to the lower die through a certain vacuum degree (-50 to-70 Kpa), so that the upper die and the lower die can tightly press the metal sheet, and the stamping precision and stability are improved.
According to the invention, a lifting wheel assembly is arranged in a feeding area, the lifting wheel assembly comprises a lifting wheel assembly, a fixed wheel assembly and a second driving device, a leveled metal thin material passes through the lifting wheel assembly and then is vertical to a workbench, and the metal thin material passes through the fixed wheel assembly and then is parallel to the workbench; the lifting wheel assembly enables the metal thin material to play a role in buffering by changing the advancing direction of the metal thin material, and prevents the metal thin material in the feeding area from being pulled back by overlarge tension of the vertical stretching module.
The stamping area comprises at least two groups of stamping modules, and the shapes of dies of different stamping modules can be the same or different. Therefore, the stamping die set can be switched quickly to obtain the bus bars with different shapes. Because the bus bar is directly pulled to the surface of the battery piece for welding after being cut off, the shutdown time of equipment can be greatly reduced and the utilization rate is improved when the battery piece is replaced.
The solar cell bus bar is prepared by the online production device of the solar cell bus bar and comprises a body and welding salient points, wherein the body is provided with a plurality of hollow parts, and the welding salient points are arranged on two sides of the body. According to the invention, the hollow part is arranged on the body, so that the internal stress of the bus bar after welding can be reduced, the welding quality is improved, and the warping problem of the welded battery piece is reduced. According to the invention, the welding salient points are arranged on the two sides of the body, so that the problems of insufficient welding, welding deviation and the like caused by insufficient equipment precision can be reduced.
The bus bar can be compatible with back contact batteries with different types of PAD point designs, and can be compatible with component models with different battery numbers (60 pieces, 66 pieces, 72 pieces, 78 pieces and the like) such as whole pieces, two pieces, three pieces, four pieces and the like.
Drawings
FIG. 1 is a schematic structural view of an apparatus for on-line production of solar cell bus bars according to the present invention;
fig. 2 is a schematic structural view of a solar cell bus bar according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings. It is only noted that the invention is intended to be limited to the specific forms set forth herein, including any reference to the drawings, as well as any other specific forms of embodiments of the invention.
Referring to fig. 1, the present invention provides an on-line production apparatus for a solar cell bus bar, including a worktable 5; a pretreatment area 1 arranged at one side of the workbench 5 and used for flattening the whole roll of the packaged metal sheet 6; a feeding zone 2 for feeding the flattened metal sheet 6 onto a work table 5; a punching zone 3 for punching the metal sheet 6 on the table 5 into a predetermined shape; and the traction cutting area 4 is arranged on the other side of the workbench 5 and is used for coating the soldering flux on the punched metal thin material 6, cutting the metal thin material 6, pulling the cut metal thin material 6 out of the workbench 5 and drawing the cut metal thin material 6 to the surface of the battery piece for welding.
Specifically, the pretreatment area 1 of the invention is used for flattening the metal sheet 6 to be punched, so that the metal sheet 6 entering the area 3 to be punched is flat and has no radian. The metal sheet 6 for manufacturing the bus bar is a whole roll package, so that the metal sheet 6 has a certain radian when in use, and the metal sheet 6 with a certain radian or unevenness affects the stamping precision when in stamping, thereby affecting the precision and yield of the bus bar.
In particular, the pretreatment zone 1 of the present invention comprises a vertical stretching module 11 and a clamping device 12, said clamping device 12 being used to clamp the metal sheet 6, said vertical stretching module 11 vertically stretching the metal sheet 6 upwards or downwards. The tension for stretching the metal thin material 6 is 10-15N, and if the tension for stretching the metal thin material 6 is less than 10N, the tension is too small to straighten and flatten the metal thin material 6; if the tension for stretching the metal thin material 6 is greater than 15N, the tension becomes too large, and the metal thin material 6 is stretched and deformed. Preferably, the metal thin material 6 is a thin copper sheet.
The clamping device 12 comprises two rollers, the metal sheet 6 is arranged between the two rollers, when the metal sheet 6 needs to be stretched, the two rollers clamp the metal sheet 6, and the vertical stretching module 11 vertically stretches the metal sheet 6 upwards or downwards; after the stretching is finished, the two rollers loosen the metal sheet 6, the metal sheet 6 still passes between the two rollers, and at the moment, the two rollers play a limiting role.
The vertical stretching module 11 comprises a servo motor and a pull rod, the pull rod is connected between the servo motor and the whole roll of metal thin material 6, and the servo motor drives the whole roll of metal thin material 6 to vertically move upwards or downwards through the pull rod. The vertical stretching module 11 may also include other structures to move the entire roll of metal sheet 6 vertically up or down.
The feed zone of the invention serves to hold the metal sheet 6 and to drive the rotation of the entire roll of metal sheet 6 so that the metal sheet 6 moves in the direction of the punching zone 3.
Specifically, the feeding area 2 includes a feeding port 21, a pressing device 22, and a first driving device (not shown in the figure), the feeding port 21 is disposed at the front end of the workbench 5, and the first driving device is connected to the whole roll of metal sheet 6 and is used for driving the whole roll of metal sheet 6 to rotate, so that the flattened metal sheet 6 enters the feeding port 21; the pressing device 22 is disposed above the table 5 and presses the metal sheet 6. When the cutting area 4 is drawn to cut the metal sheet 6, the pressing device 22 presses the metal sheet 6 to prevent the metal sheet from moving to the punching area 3, so as to prevent the bus bar from falling off, and ensure that the length of the bus bar is within a preset range.
The first driving device is a servo motor, and the pressing device 22 includes an air cylinder and a pressing block connected to the air cylinder.
In order to prevent the metal thin material 6 in the feeding area 2 from being pulled back due to the overlarge pulling force of the vertical stretching module 11, the feeding area 2 further comprises a lifting wheel assembly, the lifting wheel assembly is arranged between the feeding port 21 and the clamping device 12, the lifting wheel assembly comprises a lifting wheel assembly 23, a fixed wheel assembly 24 and a second driving device, the leveled metal thin material 6 is perpendicular to the workbench 5 after passing through the lifting wheel assembly 23, and the metal thin material 6 is parallel to the workbench 5 after passing through the fixed wheel assembly 24. The lifting wheel assembly 23 of the invention enables the metal sheet 6 to play a role of buffering by changing the advancing direction of the metal sheet 6, and avoids the situation that the metal sheet 6 in the feeding area 2 is pulled back by overlarge pulling force of the vertical stretching module 11.
Preferably, the lifting wheel set 23 is arranged between the fixed wheel set 24 and the clamping device 12 and is connected with the second driving device, the fixed wheel set 24 is parallel to the workbench 5, and the metal thin material 6 horizontally enters the feeding hole 21 after passing through the fixed wheel set 24. Wherein the fixed wheel set 24 comprises two rollers, and the lifting wheel set 23 also comprises two rollers, but the fixed wheel set 24 and the lifting wheel set do not clamp the metal sheet 6, but only change the advancing direction of the metal sheet 6.
The punching zone 3 of the present invention is used for punching the metal sheet 6 to form the metal sheet 6 into a predetermined shape. Specifically, the stamping area 3 includes a stamping module, the stamping module includes a stamping die and a third driving device 31, the stamping die includes an upper die 32 and a lower die 33, the upper die 32 is disposed above the metal sheet 6, the lower die 33 is disposed below the metal sheet 6, and the third driving device 31 is connected to the upper die 32 and is used for driving the upper die 32 to move up and down.
Preferably, the stamping module further comprises a vacuum-pumping assembly, and the vacuum-pumping assembly is connected with the lower die 33, so that the metal sheet 6 is tightly attached to the lower die 33, the metal sheet 6 can be tightly pressed by the upper die 32 and the lower die 33, and the stamping precision and stability are improved.
Because the thickness of the metal thin material 6 is very thin and is only 0.3-0.5 mm, if the stamping module has no vacuumizing component, the metal thin material 6 is easy to shake due to the movement of the upper die 32 during stamping, thereby affecting the precision and stability of stamping.
Specifically, the lower mold 33 is provided with a plurality of through holes 331, the vacuum pumping assembly includes a vacuum pipe 34 and a vacuum pump 35, and the vacuum pipe 34 is connected to the lower mold 33 to suck the metal sheet 6 through the through holes 331 of the lower mold 33.
Preferably, the vacuum degree of the vacuumizing assembly is-50 to-70 Kpa, and if the vacuum degree of the vacuumizing assembly is greater than-70 Kpa, the vacuum degree is too large, the metal thin material 6 is sucked too tightly, and the punched metal thin material 6 is difficult to pull out; if the vacuum degree of the vacuumizing assembly is less than minus 50Kpa, the vacuum degree is too small, the metal sheet 6 cannot be effectively sucked, and displacement is easy to occur during punching, so that the punching precision is influenced. Preferably, the vacuum degree of the vacuumizing assembly is-65 to-55 Kpa.
The third driving device 31 is a stamping cylinder, and the working pressure of the stamping cylinder is 0.6-0.8 Mpa. If the working pressure of the stamping cylinder is more than 0.8Mpa, the pressure is too high, and the cylinder and the metal thin material 6 are easily damaged; if the working pressure of the stamping cylinder is less than 0.6Mpa, the pressure is too low, poor stamping is easily formed, and the stamping precision is affected.
Preferably, the stamping area 3 includes at least two sets of stamping die sets, and the die shapes of different stamping die sets may be the same or different. Therefore, the stamping die set can be switched quickly to obtain the bus bars with different shapes. Because the bus bar is directly pulled to the surface of the battery piece for welding after being cut off, the shutdown time of equipment can be greatly reduced and the utilization rate is improved when the battery piece is replaced.
Specifically, when the back contact batteries of different PAD point designs need to be switched, the quick switching of different batteries can be quickly realized only by closing the first group of stamping modules and opening the second group of stamping modules without stopping and replacing the bus bar die, so that the on-line one-key switching is realized.
The drawing and cutting area 4 of the present invention is used for cutting the punched metal sheet 6 to obtain the bus bar and drawing out the bus bar.
Specifically, the drawing and cutting area 4 includes a cutting device 41 and a drawing device 42, and the cutting device 41 is disposed at the end of the worktable 5 and is used for cutting the punched metal sheet 6 to obtain the bus bar. The traction device 42 is arranged behind the cutting device 41, and is used for pulling the cut bus bar out of the workbench 5, and drawing the bus bar to the surface of the battery piece for welding.
The cutting device 41 comprises an air cylinder and a cutter, the traction device 42 comprises a clamping block assembly and a fourth area device, and the fourth driving device is connected with the clamping block assembly and is used for driving the clamping block assembly to reciprocate towards the tail end of the workbench 5, so that the clamping block assembly pulls out the bus bar from the workbench 5.
Preferably, the traction cutting area 4 further comprises a soldering flux smearing structure 43, the soldering flux smearing structure 43 smears soldering flux on the punched metal thin material 6, the soldering flux smearing structure 43 comprises a soldering flux box and a sponge, the soldering flux box is filled with liquid soldering flux, the sponge is arranged at the bottom of the soldering flux box, and the liquid soldering flux in the soldering flux box is smeared on the punched metal thin material 6 through the sponge. Specifically, the sponge is arranged above the workbench 5 and is in surface contact with the punched metal sheet 6, so that the soldering flux is coated on the punched metal sheet 6.
Correspondingly, referring to fig. 2, the invention further provides a solar cell bus bar 7 prepared by the above on-line production apparatus for a solar cell bus bar, which comprises a body 71 and welding bumps 72, wherein the body 71 is provided with a plurality of hollow parts 711, the hollow parts 711 are in a strip shape and are arranged along the length direction of the body 71, and the welding bumps 72 are arranged at two sides of the body 71.
According to the invention, the hollow part 711 is arranged on the body 71, so that the internal stress of the bus bar after welding can be reduced, the welding quality is improved, and the warping problem of the battery piece after welding is reduced. The welding salient points 72 are arranged on the two sides of the body 71, so that the problems of insufficient precision of equipment, such as insufficient cold joint, poor welding and the like can be reduced.
Preferably, the area of the hollow part 711 accounts for 40% -50% of the total area of the bus bar, and if the area of the hollow part 711 is smaller than 40%, the hollow area is too small, so that the stress of the bus bar caused by thermal deformation cannot be reduced; if the area of the hollow portion 711 is larger than 50%, the hollow area is too large, which may cause the cross section through which the current flows to be too small, thereby affecting the photoelectric performance of the solar cell.
Preferably, the area of the hollow part 711 accounts for 43 to 47 percent of the total area of the bus bar.
Wherein the welding protrusions 72 respectively protrude outwards along two sides of the body 71. Preferably, the solder bumps 72 on both sides of the body 71 are alternately arranged, so that the uniformity of the solder joints can be improved.
Specifically, the welding salient point 72 and the body 71 are of an integral structure and are formed by stamping together.
Preferably, the shape of the solder bump 72 is circular.
The bus bar can be compatible with back contact batteries with different types of PAD point designs, and can be compatible with component models with different battery numbers (60 pieces, 66 pieces, 72 pieces, 78 pieces and the like) such as whole pieces, two pieces, three pieces, four pieces and the like.
While the invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not to be limited to the disclosed embodiment, but on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.
Claims (10)
1. The on-line production device of the solar cell bus bar is characterized by comprising a workbench, a pretreatment area, a feeding area, a punching area and a traction cutting area, wherein the pretreatment area, the feeding area, the punching area and the traction cutting area are sequentially arranged; the pretreatment area is arranged on one side of the workbench and is used for flattening the whole roll of packaged metal thin material; the feeding area is used for conveying the flattened metal sheet to a workbench; the stamping area is used for stamping the metal thin material on the workbench into a preset shape, wherein the stamping area comprises a stamping module, the stamping module comprises a stamping die and a vacuumizing assembly, the stamping die comprises an upper die and a lower die, the upper die is arranged above the metal thin material, the lower die is arranged below the metal thin material, and the vacuumizing assembly is connected with the lower die so that the metal thin material is tightly attached to the lower die; the traction cutting area is arranged on the other side of the workbench and used for coating the soldering flux on the punched metal thin material, cutting the metal thin material, pulling the cut metal thin material out of the workbench and drawing the cut metal thin material to the surface of the battery piece for welding.
2. The on-line production apparatus of a solar cell bus bar according to claim 1, wherein the metal sheet is subjected to a tension of 10 to 15N in the pretreatment region;
the pretreatment zone includes a vertical stretching module and a clamping device, the clamping device is used for clamping the metal sheet, and the vertical stretching module vertically stretches the metal sheet upwards or downwards.
3. The apparatus for manufacturing a solar cell bus bar as claimed in claim 1, wherein the vacuum pumping assembly comprises a vacuum pipe and a vacuum pump, the lower mold is provided with a plurality of through holes, and the vacuum pipe is connected to the lower mold to tightly press the metal sheet against the lower mold through the through holes;
the vacuum degree of the vacuumizing assembly is-50 to-70 Kpa.
4. The apparatus for on-line production of solar cell bus bars according to claim 1, wherein the stamping module further comprises a third driving device connected to the upper mold for driving the upper mold to move up and down;
the third driving device is a stamping cylinder, and the working pressure of the stamping cylinder is 0.6-0.8 Mpa.
5. The apparatus for on-line production of solar cell bus bars according to claim 1, wherein the stamping zone comprises at least two sets of stamping modules.
6. The on-line production apparatus of a solar cell bus bar according to claim 1, wherein the drawing cutoff zone includes a cutting device provided at an end of the work table and a drawing device provided behind the cutting device;
the traction cutting area further comprises a soldering flux smearing structure, the soldering flux smearing structure comprises a soldering flux box and sponge, liquid soldering flux is filled in the soldering flux box, the sponge is arranged at the bottom of the soldering flux box, and the soldering flux in the soldering flux box is smeared on the punched metal thin material through the sponge.
7. The apparatus for manufacturing a solar cell bus bar as claimed in claim 1, wherein the feeding zone comprises a feeding port, a pressing device and a first driving device, the feeding port is disposed at a front end of the worktable, and the first driving device is connected to the whole roll of the metal sheet and is used for driving the whole roll of the metal sheet to rotate so that the flattened metal sheet enters the feeding port; the pressing device is arranged above the workbench and used for pressing the metal thin materials.
8. The apparatus of claim 7, wherein the feeding region further comprises a lifting wheel assembly disposed between the feeding opening and the clamping device, the lifting wheel assembly comprises a lifting wheel set, a fixing wheel set and a second driving device, the flattened metal sheet passes through the lifting wheel set and then is perpendicular to the worktable, and the metal sheet passes through the fixing wheel set and then is parallel to the worktable.
9. A solar cell bus bar manufactured by the on-line manufacturing apparatus of the solar cell bus bar according to any one of claims 1 to 8, comprising a body provided with a plurality of hollowed-out portions having a long bar shape arranged along a length direction of the body, and welding bumps provided at both sides of the body.
10. The solar cell bus bar of claim 9, wherein the area of the hollowed-out portion accounts for 40% to 50% of the total area of the bus bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110989730.9A CN113732724A (en) | 2021-08-26 | 2021-08-26 | Solar cell bus bar and online production device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110989730.9A CN113732724A (en) | 2021-08-26 | 2021-08-26 | Solar cell bus bar and online production device thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113732724A true CN113732724A (en) | 2021-12-03 |
Family
ID=78733165
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110989730.9A Withdrawn CN113732724A (en) | 2021-08-26 | 2021-08-26 | Solar cell bus bar and online production device thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113732724A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114888582A (en) * | 2022-07-12 | 2022-08-12 | 苏州小牛自动化设备有限公司 | Bus bar welding equipment and welding method |
-
2021
- 2021-08-26 CN CN202110989730.9A patent/CN113732724A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114888582A (en) * | 2022-07-12 | 2022-08-12 | 苏州小牛自动化设备有限公司 | Bus bar welding equipment and welding method |
| CN114888582B (en) * | 2022-07-12 | 2022-11-15 | 苏州小牛自动化设备有限公司 | Bus bar welding equipment and welding method |
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Application publication date: 20211203 |