CN214123899U - Battery string production line and battery string production equipment - Google Patents
Battery string production line and battery string production equipment Download PDFInfo
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- CN214123899U CN214123899U CN202023063639.4U CN202023063639U CN214123899U CN 214123899 U CN214123899 U CN 214123899U CN 202023063639 U CN202023063639 U CN 202023063639U CN 214123899 U CN214123899 U CN 214123899U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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- 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
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Abstract
The utility model discloses a battery string production line and a battery string production device, wherein the battery string production line comprises a welding strip providing device, a battery piece providing device, a conveying device and a pre-fixing device; the welding strip supply device is used for placing a welding strip group on the conveying device; the battery string providing device places battery pieces on the conveying device; the ith battery piece is stacked on the back half section of the ith welding strip group, and the front half section of the (i + 1) th welding strip group is stacked on the ith battery piece to form a battery string; the pre-fixing device is used for pre-fixing the battery strings stacked on the conveying device; the battery string production line also comprises at least one of a back film stacking device and a front film stacking device; the back film stacking device is used for placing a back film, so that the back film is stacked on the back of the pre-fixed battery string; the front film stacking device is used for stacking front films on the front sides of the battery strings after being pre-fixed. The technical scheme provided by the utility model, can high-efficiently with no main grid battery piece series connection one-tenth battery cluster.
Description
Technical Field
The utility model relates to a photovoltaic cell specifically relates to a battery cluster production line and battery cluster production facility from producing technical field.
Background
The traditional solar cell slice guides the photo-generated current in the cell slice to the outside of the cell slice through the grid lines on the traditional solar cell slice, the current grid lines are mostly printed by silver paste in consideration of the final conductivity, and the solar cell slice is divided into three main grids, four main grids and multiple main grids according to different printing processes.
For the solar cell with three main grids, four main grids and multiple main grids, a plurality of welding strips are respectively welded with the main grid lines of the solar cell by using soldering flux at present, so that a cell string formed by connecting a plurality of cells in series is obtained, and finally, conversion from light energy to electric energy is realized. However, the battery string obtained by welding the welding strip and the main grid line has a large shading area, influences the photoelectric conversion efficiency, and has high silver paste cost.
In order to overcome the problems, a non-main grid crystalline silicon solar cell is provided, and a manufacturing process for forming a series of non-main grid cells by connecting the non-main grid cells in series adopts that an upper membrane and a lower membrane are respectively arranged on two sides of a cell string formed by overlapping a welding strip and the cells.
Therefore, it is desirable to provide a production facility that is capable of connecting masterless cells in series into a string.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a battery cluster production line and battery cluster production facility can be high-efficiently with no main grid battery piece series connection one-tenth battery cluster.
In order to achieve the above object, the utility model provides a battery string production line includes that the welding strip provides device, battery piece provides device, conveyor, pre-fixing device; wherein,
the welding strip supply device is used for placing welding strip groups on the conveying device, wherein each welding strip group comprises a plurality of parallel welding strip sections;
the battery string providing device places battery pieces on the conveying device; the ith battery piece is stacked on the back half section of the ith welding strip group, the front half section of the (i + 1) th welding strip group is stacked on the ith battery piece to form a battery string, and i is any natural number greater than 0;
the pre-fixing device is used for pre-fixing the battery strings stacked on the conveying device, so that the stacked battery pieces and the welding strip group are partially or completely fixedly connected together;
the battery string production line also comprises at least one of a back film stacking device and a front film stacking device; wherein,
the back surface film stacking device is used for placing a back surface film, so that the back surface film is stacked on the back surface of the battery string after being pre-fixed;
the front film stacking device is used for stacking front films on the front sides of the battery strings after being pre-fixed.
Optionally, the battery string production line includes the back film stacking apparatus, the back film stacking apparatus includes a back film conveyor and a film roll wound with a strip-shaped back film, wherein the back film conveyor is disposed at an output end of the conveyor, and a back film conveyor belt moving in a direction away from the conveyor is disposed on the back film conveyor;
the back surface film released by the film roll is laid on the back surface film conveying belt from one end of the back surface film conveyor close to the conveying device and moves along with the back surface film conveying belt;
the battery strings on the conveying device are conveyed to the back surface film on the back surface film conveyor from the output end of the conveying device after being pre-fixed, and the battery strings are gradually moved to the back surface film in the process of conveying the back surface film and the battery strings by the back surface film conveyor, so that the back surface film is stacked on the back surface of the battery strings.
Optionally, the back surface film conveyor further comprises a bottom plate, an upper portion of the back surface film conveyor belt is supported on the bottom plate, the back surface film conveyor belt and the bottom plate are both provided with adsorption holes, and the back surface film is adsorbed on the back surface film conveyor belt through the adsorption holes.
Optionally, the back surface film conveyor further comprises a heating mechanism for heating the bottom plate, and the back surface film is fixed on the battery string by heating the bottom plate through the heating mechanism.
Optionally, the welding strip providing device comprises a plurality of welding strip coils, a welding strip pressing mechanism, a welding strip cutting mechanism and a welding strip traction mechanism, the welding strip coils, the welding strip pressing mechanism, the welding strip cutting mechanism and the welding strip traction mechanism are sequentially arranged along the extending direction of the welding strip, the welding strip traction mechanism pulls the welding strip to pass through the welding strip pressing mechanism and the welding strip cutting mechanism to the preset position, the welding strip pressing mechanism presses the welding strip, the welding strip cutting mechanism cuts the welding strip to form a welding strip group comprising a plurality of welding strip sections, and the welding strip group is placed on the conveying device in a clamping and cutting mode.
Optionally, the solder strip providing device further comprises a solder strip pressing mechanism, and the solder strip pressing mechanism is arranged between the solder strip pressing mechanism and the solder strip cutting mechanism and used for pressing a solder strip group to be cut so as to form a bending structure at a position between two adjacent battery pieces when the solder strip group and the battery pieces are stacked.
Optionally, the battery string production line further includes a welding strip guiding device located at one end of the conveying device close to the welding strip providing device, and the welding strip guiding device guides the welding strip when the welding strip providing device provides the welding strip on the conveying device.
Optionally, the conveying device comprises a conveying belt and a conveying belt driving mechanism for driving the conveying belt to run, the first end of the conveying belt is arranged to be capable of extending in a stepping mode in a direction away from the second end and returning in a stepping mode towards the second end, the conveying belt extends for a preset length in each stepping mode in the direction away from the second end, the conveying belt forms a vacant feeding station at the first end, and the battery plates and the welding belt groups are stacked at the feeding station; the first end is the end of the conveying belt close to the welding belt providing device, and the second end is the end far away from the first end;
the weld tape guide is configured to move synchronously with the first end of the conveyor belt.
Optionally, the front film stacking apparatus is disposed on the battery string production line, and the front film stacking apparatus is configured to stack a plurality of front films on the battery string after pre-fixing, where an ith front film is stacked on a first half section of an (i + 1) th solder ribbon group.
Optionally, the front film stacking device is arranged on the battery string production line, the front film stacking device is configured to stack a belt-shaped front film extending along the length direction of the battery string on the battery string after pre-fixing, and the belt-shaped front film extends and is laid on at least two welding strip groups on the battery string.
Optionally, the battery string production line further includes a secondary hot-pressing device, and the secondary hot-pressing device performs hot-pressing on the battery string on which the front surface film and the back surface film are stacked, so that the front surface film and the back surface film are hot-pressed on the battery string.
Optionally, the secondary hot-pressing device is configured to hot-press the battery string above the battery string, the battery string on which the front surface film is stacked is conveyed to the lower part of the secondary hot-pressing device, and the secondary hot-pressing device is used to hot-press the battery string;
or the secondary hot-pressing device is arranged on the front film stacking device, and when the front film stacking device releases the front film on the battery string, the released front film is hot-pressed by the secondary hot-pressing device.
Optionally, the battery string production line further includes a string dividing and cutting device configured to divide the battery string stacked with the front surface film and the back surface film into a plurality of independent battery strings of predetermined lengths.
According to the utility model discloses an on the other hand still provides a battery cluster production facility, battery cluster production facility includes two at least as above battery cluster production line, two at least battery cluster production line are arranged in parallel.
The utility model provides a technical scheme stacks into the battery cluster through organizing at the battery piece with the solder strip in proper order after, stacks positive facial mask or stacks the back facial mask at the back of battery cluster in the front of this battery cluster again to realize the production technology that no main grid battery piece establishes ties into the cluster, production efficiency is high.
Drawings
Fig. 1 is a schematic structural diagram of a battery string production line according to an embodiment of the present invention;
fig. 2-6 are schematic diagrams illustrating stacking of solder ribbon groups and battery pieces on a conveyor of a battery string production line according to an embodiment of the present invention;
FIG. 7 is a schematic illustration of a face film being laid on a battery string stacked on a conveyor;
FIG. 8 is an enlarged view at E of FIG. 7;
fig. 9 is a schematic view of a back side film attached to the back side of a battery string;
FIG. 10 is an enlarged view at F of FIG. 9;
fig. 11 is a schematic structural view of the conveying device.
Description of the reference numerals
1-a solder strip supply device; 11-solder strip coil; 12-a solder strip hold down; 13-a solder strip pressing device; 14-a solder strip cutting device; 2-a back film laying device; 21-a film tape roll wound with a tape-like back film a; 22-a backside film conveyor; 3-a conveying device; 31-a conveyor belt; 32-a base; 33-a stepping platform; 34-a stationary platform; 35-a conveyor belt drive mechanism; 351-driving roll; 352-first guide roll; 353-a second guide roll; 354-tensioning roller; 4-a hot-pressing device; 5-welding the tape guiding device; 7-a film tape roll wound with a front face film D; 8-string cutting device.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The drawings are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus their repetitive description will be omitted.
Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the disclosure. One skilled in the relevant art will recognize, however, that the subject matter of the present disclosure can be practiced without one or more of the specific details, or with other methods, components, devices, steps, and the like. In other instances, well-known structures, methods, devices, implementations, materials, or operations are not shown or described in detail to avoid obscuring aspects of the disclosure.
Spatially relative terms, such as "upper," "lower," "left," "right," and the like, may be used herein for ease of description to describe one element or feature's relationship to another element or feature as illustrated in the figures. It will be understood that the spatial terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "lower" can encompass both an upper and a lower orientation. The device may also be otherwise oriented, such as by rotation through 90 degrees or at other orientations and the spatially relative descriptors used herein interpreted accordingly.
The utility model provides a battery string production line, which comprises a welding strip providing device 1, a battery piece providing device, a conveying device 3 and a pre-fixing device 4; wherein,
the solder strip providing device 1 is used for placing solder strip groups B on the conveying device 3, wherein each solder strip group B comprises a plurality of parallel solder strip sections;
the battery string providing device places the battery piece C on the conveying device 3; the ith battery piece C is stacked on the back half section of the ith welding strip group B, the front half section of the (i + 1) th welding strip group B is stacked on the ith battery piece C to form a battery string, and i is any natural number greater than 0;
the pre-fixing device 4 is used for pre-fixing the battery strings stacked on the conveying device 3, so that the stacked battery plates C and the welding strip group B are partially or completely fixedly connected together, and the welding strip group B does not deviate relative to the battery plates C;
the battery string production line also comprises at least one of a back film stacking device 2 and a front film stacking device; wherein,
the back surface film stacking device 2 is used for placing a back surface film A, so that the back surface of the pre-fixed battery string is stacked with the back surface film A;
the front film stacking device is used for stacking a front film D on the front side of the battery string after pre-fixing.
The utility model provides a technical scheme stacks into the battery cluster through organizing at the battery piece with the solder strip after, stacks positive facial mask or stacks the back facial mask at the back of battery cluster in the front of this battery cluster again to realize the production technology that no main grid battery piece establishes ties into the cluster, and production efficiency is high.
The utility model discloses an in a specific embodiment, as shown in FIG. 1, it includes a plurality of welding strip coils 11 to weld area providing device 1, weld area hold-down mechanism 12, weld area cutting mechanism 14 and weld area drive mechanism (not shown in FIG. 1), it rolls up 11 to weld the area, weld area hold-down mechanism 12, weld area cutting mechanism 14 and weld area drive mechanism and arrange in proper order along the extending direction who welds the area, it pulls to weld the area and passes and weld area hold-down mechanism 12 and weld area cutting mechanism 14 to predetermineeing the position, and when welding area hold-down mechanism 12 compresses tightly the area, weld area cutting mechanism 14 and cut the area and form and weld area group B including a plurality of welding area sections, weld area group B that the area drive mechanism centre gripping of area was cut and place on conveyor 3.
Of course, it is understood that the solder ribbon supply apparatus 1 may also be an apparatus that directly supplies solder ribbon groups.
Optionally, the solder ribbon providing apparatus 1 further includes a solder ribbon pressing mechanism 13, the solder ribbon pressing mechanism 13 is disposed between the solder ribbon pressing mechanism 12 and the solder ribbon cutting mechanism 14, and is configured to press the solder ribbon group to be cut so as to form a bending structure at a position between two adjacent battery pieces when the solder ribbon group and the battery piece are stacked, the bent solder ribbon group forms a step shape between a rear half section and a front half section, and the rear half section is located below the step shape, so that when the battery piece is stacked, the front half section of the solder ribbon is suitable for being stacked on the previous battery piece, and the battery piece is stacked above the rear half section.
The specific process of providing the solder strip group by the solder strip providing device 1 is as follows: the welding strip traction device clamps a plurality of parallel welding strips from a welding strip coil 11, then pulls the welding strips to sequentially pass through a welding strip pressing device 12, a welding strip pressing device 13 and a welding strip cutting device 14, when the welding strips are pulled to a preset position, the welding strip pressing device 13 presses the welding strips to form a bending structure, when pressing is finished and the welding strip pressing device 12 presses the welding strips, the welding strip cutting device 14 cuts the welding strips to form a welding strip group B with the bending structure at the middle position, and then the welding strip traction device pulls the cut welding strip group B to move to the conveying device 3 to be laid.
The battery string production line further comprises a welding strip guiding device 5 which is positioned at one end of the conveying device 3 close to the welding strip providing device 1, and the welding strip guiding device 5 guides the welding strip when the welding strip providing device 1 provides the welding strip on the conveying device 3.
In this embodiment, the conveying device 3 includes a conveying belt and a conveying belt driving mechanism for driving the conveying belt to operate, a first end of the conveying belt is configured to extend in a stepping manner in a direction away from a second end and return in a stepping manner in a direction toward the second end, wherein the conveying belt extends in a predetermined length in each stepping manner in the direction away from the second end, the conveying belt forms a vacant feeding station at the first end, and the battery piece and the welding belt group are stacked at the feeding station; the first end is the end of the conveying belt close to the welding belt providing device 1, and the second end is the end far away from the first end;
the solder strip guide 5 is arranged to move synchronously with the first end of the conveyor belt.
Specifically, as shown in fig. 11, the conveying device 3 includes a conveying belt 31, and further includes a base 32, a fixed platform 34, a stepping platform 33, and a platform moving mechanism for driving the stepping platform 33 to move, wherein: the fixed platform 34 is fixedly connected to the base 32, the stepping platform 33 is slidably connected to the base 32, and the platform moving mechanism can drive the stepping platform 33 to move towards or away from the fixed platform 34 in the conveying direction of the conveyor belt 31 (the fixed platform 34 is close to the second end of the conveyor belt relative to the stepping platform 33);
the conveyer belt 31 is arranged on the fixed platform 34 and the stepping platform 33, and when the stepping platform 33 moves away from the fixed platform 34, the conveyer belt 31 moves from bottom to top at the end part of the stepping platform 33 away from the fixed platform 34, so that the upper surface of the conveyer belt 31 extends along with the stepping platform 33 in a stepping direction away from the fixed platform 34, that is, the conveyer belt 31 extends towards the first end;
the solder strip guide 5 is arranged to move synchronously with the stepping platform 33 so that the solder strip guide 5 is synchronized with the first end of the conveyor belt 31 to effect guiding of the solder strip.
The conveying belt driving mechanism 35 for driving the conveying belt 31 to run comprises a driving roller 351, a first guide roller 352, a second guide roller 353 and a tension roller 354;
the driving roller 351 is arranged at the end of the fixed platform 34 far away from the stepping platform 33 and is driven by a driving motor to rotate, the first guide roller 352 is positioned at the end of the stepping platform 33 far away from the fixed platform 34, the first guide roller 352 and the second guide roller 353 are arranged on the stepping platform 33, the tension roller 354 is positioned below the first guide roller 352 and the second guide roller 353, the tension roller 354 is arranged to be capable of moving back and forth along the conveying direction of the conveying belt 31 for adjustment so as to tension the conveying belt 31, specifically, a slide rail extending along the conveying direction of the conveying belt 31 can be arranged on the base 32, and the tension roller 354 is driven by a tension roller driving cylinder to move back and forth along the slide rail; the conveying belt 31 is sequentially wound on a driving roller 351, a first guide roller 352, a second guide roller 353 and a tension roller 354, wherein the second guide roller 353 is positioned on the conveying surface of the conveying belt 31; when the stepping platform 33 moves away from the fixed platform 34, the first guide roller 352 and the second guide roller 353 move along with the stepping platform 33 and guide the conveying belt 31 to move upwards and extend from below, so that when the stepping platform 33 moves towards the first end, the conveying belt 31 extends in steps at the first end.
In the present embodiment, the specific process of stacking the solder ribbon group B and the battery cell C on the conveyor 3 in sequence is shown in fig. 2 to 6.
First, as shown in fig. 2, the solder ribbon drawing device of the solder ribbon providing device 1 places a first cut solder ribbon group B on the conveying device 3, and the battery piece providing device stacks a first battery piece C on the second half of the solder ribbon group;
as shown in fig. 3, the conveying belt of the conveying device 3 is stepped by a predetermined length in the direction of the solder strip providing device 1, and an empty feeding station is formed at the first end of the conveying device 3;
as shown in fig. 4, the solder ribbon supply apparatus 1 places a second solder ribbon group B at the feeding station, the first half of the second solder ribbon group B being stacked on a first battery cell C, and the battery cell supply apparatus places a second battery cell C at the feeding station, the second battery cell C being stacked on the second half of the second solder ribbon group B;
as shown in fig. 5, the conveying belt of the conveying device 3 is stepped by a predetermined length toward the solder strip providing device 1, a vacant feeding station is formed at the first end of the conveying device, and the solder strip group B and the battery plate C are continuously stacked at the feeding station;
by so doing, a battery string in which a plurality of tab groups B and battery chips C are sequentially stacked as shown in fig. 6 is obtained.
After a preset number of welding strip sets and battery pieces are stacked on the conveying device 3, the conveying device conveys the stacked welding strip sets and battery pieces towards the direction of the second end.
In the present embodiment, the pre-fixing device that pre-fixes the battery string formed by the stacked battery piece C and the solder ribbon group B is the hot press device 4 located above the conveying device 3. When the stacked solder strip groups and the stacked battery pieces are conveyed to a hot-pressing station located below the hot-pressing device 4, the hot-pressing device 4 fixes the stacked solder strip groups B and the stacked battery pieces C. Of course, it is understood that the pre-fixing means for fixing the stacked battery plate and the solder ribbon assembly together is not limited to the above-mentioned heat press 4, and may be, for example, an adhesive or the like for bonding the solder ribbon assembly and the battery plate together.
In the present embodiment, in order to stack the back surface film a on the back surface of the battery string formed by stacking the battery piece C and the solder ribbon group B, as shown in fig. 1, the battery string production line includes a back surface film stacking apparatus 2, the back surface film stacking apparatus 2 includes a back surface film conveyor 22 and a film ribbon roll 21 on which a ribbon-shaped back surface film a is wound, wherein the back surface film conveyor 22 is provided at the output end of the conveyor 3, and the back surface film conveyor 22 is provided with a back surface film conveyor belt that runs in a direction away from the conveyor 3;
the back film a released from the film tape roll 21 wound with the tape-shaped back film a is laid on and moved with the back film conveyor belt from one end of the back film conveyor 22 close to the conveyor 3;
after the battery strings on the conveying device 3 are pre-fixed, the battery strings are conveyed to the back surface film A on the back surface film conveyor 22 from the output end of the conveying device 3, and in the process that the back surface film conveyor 22 conveys the back surface film A and the battery strings, the battery strings gradually move to the back surface film A, so that the back surface film A is stacked on the back surface of the battery strings.
Optionally, the back film conveyor 22 further includes a bottom plate, an upper portion of the back film conveyor belt is supported on the bottom plate, the back film conveyor belt and the bottom plate are both provided with adsorption holes, and the back film a is adsorbed on the back film conveyor belt through the adsorption holes to move together with the back film conveyor belt. Of course, the end of the back film a can also be pressed against the back film conveyor belt by the pressing device to move along with the back film conveyor belt.
Optionally, the back surface film conveyor 22 further includes a heating mechanism that heats the base plate, and the back surface film a is fixed to the battery string by heating the base plate by the heating mechanism.
In this embodiment, the battery string production line is provided with a front film stacking device configured to stack a plurality of front films D on a pre-fixed battery string, wherein the ith front film D is stacked on the first half of the (i + 1) th solder ribbon group B.
Or the front film stacking device is used for stacking a belt-shaped front film D extending along the length direction of the cell string on the pre-fixed cell string, and the belt-shaped front film D extends on the cell string and is laid on the at least two welding band groups B.
As shown in fig. 1, the front surface film stacking apparatus may include a film roll 7 wound with a front surface film D, draw the front surface film D in a band shape from the film roll 7 wound with the front surface film D and then cut into a plurality of front surface films D suitable for stacking on the ribbon groups B, or draw the front surface film D from the film roll 7 wound with the front surface film D to stack on the battery string in a length direction of the battery string, the length of the front surface film D extending to at least two ribbon groups B.
The battery string production line further comprises a secondary hot-pressing device, and the secondary hot-pressing device is used for hot-pressing the battery string on which the front film D and the back film A are stacked, so that the front film D and the back film A are hot-pressed on the battery string.
The secondary hot-pressing device is arranged above the battery string to perform hot pressing on the battery string, and specifically, the secondary hot-pressing device can be arranged above the back film conveyor 22, and when the battery string with the stacked front film D and back film a is conveyed below the secondary hot-pressing device, the secondary hot-pressing device performs hot pressing on the battery string, so that the stacked back film a, the welding strip group B, the battery piece C and the front film D are fixedly connected together.
Or the front film stacking device is provided with a secondary hot-pressing device, and when the front film stacking device releases the front film D on the battery string, the released front film D is hot-pressed through the secondary hot-pressing device.
As shown in fig. 1, the battery string production line further includes a string dividing and cutting device 8, and the string dividing and cutting device 8 is configured to divide the entire battery string on which the front surface film a and the back surface film D are stacked into a plurality of independent battery strings of a predetermined length.
A specific process of stacking the back surface film a and the front surface film D on the cell string formed by stacking the solder ribbon group B and the cell chip C according to fig. 6 to 10 will be described below.
As shown in fig. 6, the welding strip group B and the battery piece C are sequentially stacked to form a battery string and are conveyed to a hot-pressing device 4 for hot-pressing and fixing;
as shown in fig. 7 and 8, a front surface film D is stacked on the front surface of the battery string thermally pressed by the thermal pressing device 4 (i.e., on the upper side of the battery string), and in the present embodiment, the ith front surface film D is stacked on the first half of the (i + 1) th solder ribbon group;
as shown in fig. 9 and 10, the back surface film a drawn from the film tape roll 21 on which the band-shaped back surface film a is wound is laid on the back surface film conveyor from the end of the back surface film conveyor 22 close to the conveyor 3; after the battery string is gradually conveyed from the conveyor 3 to the back film conveyor 22, the battery string is stacked on the back film a of the back film conveyor 22, and the back film a is stacked on the back side (i.e., the lower side) of the battery string while the back film conveyor belt is running away from the conveyor 3 with the battery string on the back film a and the back film a.
When the back film conveyor 22 conveys the battery string on which the back film a and the front film D are stacked to below a secondary hot-pressing device (the secondary hot-pressing device is located above the back film conveyor 22), the secondary hot-pressing device hot-presses the battery string, so that the stacked back film a, the solder ribbon group B, the battery chip C, and the front film D are fixed together.
Of course, after the welding strip group B and the battery string C are fixed by the hot-pressing device 4 in a hot-pressing manner, the back surface film a may also be fixed on the battery string by heating the bottom plate below the back surface film conveyor belt, and the front surface film D is hot-pressed on the battery string by the front surface film stacking device when releasing the front surface film.
It will be appreciated by those skilled in the art that the present invention is not limited to the above production method, and the front film D may be stacked on the battery string output from the back film conveyor 22 after the back film a is stacked on the back film conveyor 22. Or after the front surface film D is stacked on the front surface, the battery string is turned over, and the back surface film A is stacked on the other surface of the battery string.
It can also be understood that the utility model provides a battery cluster production line also can only stack positive facial mask D or only stack back facial mask A on the battery cluster that is formed by stacking battery piece and solder strip group.
According to the utility model discloses an on the other hand still provides a battery cluster production facility, and battery cluster production facility includes two at least battery cluster production lines as above, and two at least battery cluster production lines are arranged in parallel.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited thereto. The technical idea of the utility model within the scope, can be right the utility model discloses a technical scheme carries out multiple simple variant, makes up with any suitable mode including each concrete technical feature. In order to avoid unnecessary repetition, the present invention does not separately describe various possible combinations. These simple variations and combinations should also be considered as disclosed in the present invention, all falling within the scope of protection of the present invention.
Claims (14)
1. A battery string production line is characterized by comprising a welding strip providing device, a battery piece providing device, a conveying device and a pre-fixing device; wherein,
the welding strip supply device is used for placing welding strip groups on the conveying device, wherein each welding strip group comprises a plurality of parallel welding strip sections;
the battery string providing device places battery pieces on the conveying device; the ith battery piece is stacked on the back half section of the ith welding strip group, the front half section of the (i + 1) th welding strip group is stacked on the ith battery piece to form a battery string, and i is any natural number greater than 0;
the pre-fixing device is used for pre-fixing the battery strings stacked on the conveying device, so that the stacked battery pieces and the welding strip group are partially or completely fixedly connected together;
the battery string production line also comprises at least one of a back film stacking device and a front film stacking device; wherein,
the back surface film stacking device is used for placing a back surface film, so that the back surface film is stacked on the back surface of the battery string after being pre-fixed;
the front film stacking device is used for stacking front films on the front sides of the battery strings after being pre-fixed.
2. The battery string production line according to claim 1, wherein the battery string production line comprises the back side film stacking device, the back side film stacking device comprises a back side film conveyor and a film tape roll wound with a belt-shaped back side film, wherein the back side film conveyor is arranged at an output end of the conveyor device, and a back side film conveyor belt running in a direction away from the conveyor device is arranged on the back side film conveyor;
the back surface film released by the film roll is laid on the back surface film conveying belt from one end of the back surface film conveyor close to the conveying device and moves along with the back surface film conveying belt;
the battery strings on the conveying device are conveyed to the back surface film on the back surface film conveyor from the output end of the conveying device after being pre-fixed, and the battery strings are gradually moved to the back surface film in the process of conveying the back surface film and the battery strings by the back surface film conveyor, so that the back surface film is stacked on the back surface of the battery strings.
3. The battery string production line according to claim 2, wherein the back surface film conveyor further comprises a bottom plate, an upper portion of the back surface film conveyor belt is supported on the bottom plate, the back surface film conveyor belt and the bottom plate are both provided with adsorption holes, and the back surface film is adsorbed on the back surface film conveyor belt through the adsorption holes.
4. The battery string production line according to claim 3, wherein the back film conveyor further comprises a heating mechanism for heating the base plate, and the back film is fixed on the battery string by heating the base plate by the heating mechanism.
5. The battery string production line of claim 1, wherein the welding strip providing device comprises a plurality of welding strip coils, a welding strip pressing mechanism, a welding strip cutting mechanism and a welding strip traction mechanism, the welding strip coils, the welding strip pressing mechanism, the welding strip cutting mechanism and the welding strip traction mechanism are sequentially arranged along the extension direction of the welding strip, the welding strip traction mechanism pulls the welding strip to pass through the welding strip pressing mechanism and the welding strip cutting mechanism to a preset position, when the welding strip pressing mechanism presses the welding strip, the welding strip cutting mechanism cuts the welding strip to form a welding strip group comprising a plurality of welding strip sections, and the welding strip group is placed on the conveying device in a clamping and cutting mode of the welding strip traction mechanism.
6. The battery string production line according to claim 5, wherein the solder strip providing device further comprises a solder strip pressing mechanism, and the solder strip pressing mechanism is disposed between the solder strip pressing mechanism and the solder strip cutting mechanism and used for pressing a solder strip group to be cut so as to form a bending structure at a position between two adjacent battery pieces when the solder strip group and the battery pieces are stacked.
7. The battery string production line of claim 1, further comprising a weld ribbon guide device positioned at an end of the conveyor device proximate to the weld ribbon supply device, the weld ribbon guide device guiding the weld ribbon as the weld ribbon supply device supplies weld ribbon onto the conveyor device.
8. The battery string production line according to claim 7, wherein the conveying device comprises a conveying belt and a conveying belt driving mechanism for driving the conveying belt to run, a first end of the conveying belt is arranged to be capable of extending in steps in a direction away from the second end and returning in steps in a direction towards the second end, wherein the conveying belt extends in steps away from the second end for a predetermined length, the conveying belt forms a vacant loading station at the first end, and the battery plate and the welding belt group are stacked at the loading station; the first end is the end of the conveying belt close to the welding belt providing device, and the second end is the end far away from the first end;
the weld tape guide is configured to move synchronously with the first end of the conveyor belt.
9. The battery string production line according to claim 1, wherein the battery string production line is provided with the front side film stacking device configured to stack a plurality of front side films on the pre-fixed battery string, wherein the ith front side film is stacked on the first half of the (i + 1) th solder ribbon group.
10. The battery string production line according to claim 1, wherein the battery string production line is provided with the front surface film stacking device, the front surface film stacking device is configured to stack a belt-shaped front surface film extending in a length direction of a battery string on the pre-fixed battery string, and the belt-shaped front surface film extends on at least two of the welding band sets on the battery string.
11. The battery string production line according to claim 9 or 10,
the battery string production line further comprises a secondary hot-pressing device, and the secondary hot-pressing device is used for hot-pressing the battery string on which the front face film and the back face film are stacked, so that the front face film and the back face film are hot-pressed on the battery string.
12. The battery string production line according to claim 11, wherein the secondary hot-pressing device is configured to hot-press the battery string above the battery string, and the battery string on which the front surface film is stacked is conveyed below the secondary hot-pressing device, and the battery string is hot-pressed by the secondary hot-pressing device;
or the secondary hot-pressing device is arranged on the front film stacking device, and when the front film stacking device releases the front film on the battery string, the released front film is hot-pressed by the secondary hot-pressing device.
13. The battery string production line according to any one of claims 1 to 10, further comprising a string dividing and cutting device configured to divide the entire battery string on which the front surface film and the back surface film are stacked into a plurality of independent battery strings of a predetermined length.
14. A battery string production facility, characterized in that it comprises at least two battery string production lines according to any of claims 1-13, arranged in parallel.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023063639.4U CN214123899U (en) | 2020-12-18 | 2020-12-18 | Battery string production line and battery string production equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112490330A (en) * | 2020-12-18 | 2021-03-12 | 无锡奥特维科技股份有限公司 | Battery string production line and battery string production equipment |
| CN113937190A (en) * | 2021-10-13 | 2022-01-14 | 宁夏小牛自动化设备有限公司 | Battery string production method and equipment |
-
2020
- 2020-12-18 CN CN202023063639.4U patent/CN214123899U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112490330A (en) * | 2020-12-18 | 2021-03-12 | 无锡奥特维科技股份有限公司 | Battery string production line and battery string production equipment |
| CN112490330B (en) * | 2020-12-18 | 2025-06-03 | 无锡奥特维科技股份有限公司 | Battery string production line and battery string production equipment |
| CN113937190A (en) * | 2021-10-13 | 2022-01-14 | 宁夏小牛自动化设备有限公司 | Battery string production method and equipment |
| CN113937190B (en) * | 2021-10-13 | 2022-05-10 | 宁夏小牛自动化设备有限公司 | A method and equipment for producing a battery string |
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