CN113097344A - Method and equipment for simultaneously longitudinally and transversely welding battery components - Google Patents
Method and equipment for simultaneously longitudinally and transversely welding battery components Download PDFInfo
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- CN113097344A CN113097344A CN202110365592.7A CN202110365592A CN113097344A CN 113097344 A CN113097344 A CN 113097344A CN 202110365592 A CN202110365592 A CN 202110365592A CN 113097344 A CN113097344 A CN 113097344A
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- 238000003466 welding Methods 0.000 title claims abstract description 104
- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000010438 heat treatment Methods 0.000 claims abstract description 11
- 230000007246 mechanism Effects 0.000 claims description 107
- 238000005520 cutting process Methods 0.000 claims description 16
- 238000001179 sorption measurement Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 18
- 229910000679 solder Inorganic materials 0.000 description 30
- 230000009286 beneficial effect Effects 0.000 description 8
- 239000000463 material Substances 0.000 description 8
- 238000007599 discharging Methods 0.000 description 7
- 230000004907 flux Effects 0.000 description 4
- 230000005484 gravity Effects 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
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- 239000007769 metal material Substances 0.000 description 2
- 239000005022 packaging material Substances 0.000 description 2
- 230000007723 transport mechanism Effects 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
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- 238000003912 environmental pollution Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/18—Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof
- H01L31/1876—Particular processes or apparatus for batch treatment of the devices
- H01L31/188—Apparatus specially adapted for automatic interconnection of solar cells in a module
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/18—Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof
- H01L31/186—Particular post-treatment for the devices, e.g. annealing, impurity gettering, short-circuit elimination, recrystallisation
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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Abstract
The invention relates to a method for simultaneously longitudinally and transversely welding a battery assembly, wherein the battery assembly comprises at least two longitudinally arranged battery rows, each battery row comprises at least two transversely arranged battery sheets, and the method comprises the following steps of; a transversely extending bus bar is arranged in at least one battery row and used for transversely connecting the battery sheets in the battery row; welding strips are arranged between every two adjacent battery rows, and the front end of the rear battery row is lapped at the rear end of the battery piece in front; the front end of the welding strip is connected with the upper side of the battery piece in front, and the rear end of the welding strip is connected with the lower side of the battery piece in rear; and heating the welding strip and the bus bar at the same time to complete the transverse and longitudinal simultaneous welding of the battery assembly. The invention can improve the production efficiency, and the battery string group with transverse electric connection can balance the current, reduce the influence of heating and hot spots, improve the stability of the assembly and prolong the service life of the assembly.
Description
Technical Field
The invention relates to the technical field of solar cells, in particular to a method and equipment for simultaneously longitudinally and transversely welding cell modules.
Background
With the increasing severity of the world energy crisis and the environmental pollution problem, the solar photovoltaic power generation technology, which is a representative clean energy technology, is widely regarded as the industry direction of the preferential development of all countries in the world.
The current photovoltaic cell assembly mainly consists of: the solar cell panel comprises panel glass, packaging materials, a cell sheet layer, the packaging materials, a back sheet layer and auxiliary materials. The battery sheet layers are mainly formed by longitudinally welding adjacent battery sheets into a plurality of battery strings by conductive materials, then the battery strings are connected in parallel through bus bars, and the current after the parallel connection is output through a junction box. The battery packs are combined into a battery square matrix, and electric energy is output through rectification and the storage battery pack.
In the prior art, the battery pack follows the design concept of welding battery plates into a string and then outputting the battery plates in parallel, and the production efficiency is not high. And when the resistance value in the cell fluctuates due to cold joint and shielding, the current of each string of cell string fluctuates, which brings the defect of overheating or component power reduction. These defects can have the consequence of gradual component failure, power degradation, and inadequate component life.
Disclosure of Invention
Aiming at the technical problems in the prior art, the invention provides a method and equipment for simultaneously longitudinally and transversely welding battery components, which can simultaneously complete the transverse and longitudinal connection of the battery components and improve the production efficiency.
The technical scheme for solving the technical problems is as follows: a method of simultaneously longitudinally and transversely welding a battery assembly including at least two longitudinally arranged battery rows, each of the battery rows including at least two transversely arranged battery pieces, the method comprising;
a transversely extending bus bar is arranged in at least one battery row and used for transversely connecting the battery sheets in the battery row;
welding strips are arranged between every two adjacent battery rows, and the front end of the rear battery row is lapped at the rear end of the battery piece in front; the front end of the welding strip is connected with the upper side of the battery piece in front, and the rear end of the welding strip is connected with the lower side of the battery piece in rear;
and heating the welding strip and the bus bar at the same time to complete the transverse and longitudinal simultaneous welding of the battery assembly.
The invention has the beneficial effects that: through welding battery pack's horizontal and vertically simultaneously, can improve production efficiency to the battery string group that has horizontal electric connection can balanced current, reduces to generate heat and hot spot influences and promotes subassembly stability and life-span.
On the basis of the technical scheme, the invention can be further improved as follows.
Further, after the welding of the battery assembly is completed, the battery assembly is cut according to a preset length.
The beneficial effect of adopting the further scheme is that: can produce battery pack through the automated production subassembly along vertically incessantly, cut into the section and export battery pack according to required length again, can realize that the horizontal and vertical welding of battery pack is accomplished simultaneously to the automation incessantly, further improve production efficiency.
Furthermore, at least one lap joint electrode is symmetrically arranged on each of two sides of the battery piece; the plurality of bus bars are respectively arranged between two adjacent battery pieces in any battery row, and two ends of each bus bar are respectively connected with two lap joint electrodes which are closest to the two adjacent battery pieces.
The beneficial effect of adopting the further scheme is that: the metal materials required for manufacturing the bus bar are greatly reduced, and the manufacturing cost is reduced; and the added splicing electrodes can be flexibly configured with the transverse lapping quantity, so that the current at the lapping position can be reduced, the heat productivity can be reduced, the hot spot risk can be reduced, and the stability and the service life can be further improved.
Further, the bus bar is disposed below the battery piece.
The beneficial effect of adopting the further scheme is that: utilize the battery piece to compress tightly the busbar in the below, can improve welded precision.
Further, the battery piece is a 1/n battery piece, wherein n is a positive integer greater than or equal to 2.
The application also provides a device for simultaneously longitudinally and transversely welding the battery components, which comprises a welding table, wherein a conveying mechanism is arranged on the welding table;
the feeding end of the conveying mechanism is provided with a bus bar feeding mechanism, a battery piece feeding mechanism and a welding strip feeding mechanism; the battery piece feeding mechanism sequentially places battery rows on the conveying mechanism, and each battery row comprises at least two battery pieces which are transversely arranged; the welding strip feeding mechanism is used for placing a longitudinally extending welding strip at the rear end of the battery row; the bus bar feeding mechanism is used for placing transversely extending bus bars in advance at a preset position of the conveying mechanism;
a welding mechanism is arranged above the conveying mechanism and used for heating the battery assembly conveyed to the lower part of the welding mechanism to complete the transverse and longitudinal simultaneous welding of the battery assembly
The beneficial effect who adopts above-mentioned scheme is: by welding the battery pack in the transverse direction and the longitudinal direction simultaneously, the production efficiency of the battery pack can be improved.
Further, a string cutting mechanism is arranged at the discharge end of the conveying mechanism, and the battery piece assembly is cut according to a preset length.
The beneficial effect of adopting the further scheme is that: the battery pack can be continuously produced along the longitudinal direction, and then the battery pack is cut into sections according to the required length and output, so that the transverse welding and the longitudinal welding of the battery pack can be automatically and simultaneously completed without stopping, and the production efficiency is further improved.
Further, the transmission mechanism comprises a driving wheel, a driven wheel, a belt and a motor; the driving wheel and the driven wheel are respectively arranged at two ends of the welding table and are connected through the belt; the motor is fixedly arranged on the welding table, and the output end of the motor is connected with the driving wheel; the belt is a high temperature resistant belt.
The beneficial effect of adopting the further scheme is that: through selecting for use high temperature resistant belt conveying battery pack, can improve transport mechanism's life.
Further, the belt with be provided with the aperture on the welding stage, and be provided with evacuating device in the welding stage, will through vacuum adsorption the battery piece with the busbar adsorbs on the belt.
The beneficial effect of adopting the further scheme is that: the battery piece and the bus bar are tightly sucked through vacuum adsorption, and the welding accuracy can be further improved.
Drawings
FIG. 1 is a schematic top view of an arrangement of battery plates, bus bars, and solder strips;
FIG. 2 is a schematic bottom view of an arrangement of battery plates, bus bars, and solder strips according to an embodiment;
FIG. 3 is a schematic bottom view of an arrangement structure of two battery plates, bus bars and solder strips according to an embodiment;
FIG. 4 is a schematic view of the manner in which the solder strip is installed;
FIG. 5 is a schematic structural diagram of a third embodiment of the present invention;
FIG. 6 is a schematic structural diagram of a conveying mechanism according to a third embodiment of the present invention;
fig. 7 is a schematic structural view of a battery sheet feeding mechanism according to a third embodiment of the present invention;
fig. 8 is a schematic structural view of a solder strip feeding mechanism according to a third embodiment of the present invention;
fig. 9 is a schematic structural view of a bus bar feeding mechanism according to a third embodiment of the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
1. the battery pack comprises a battery assembly, 101, a battery piece, 101a, a battery row, 101b, a battery string, 102, a lapping electrode, 103, a bus bar, 104, a welding strip, 2, a welding table, 21, a heating bottom plate, 3, a conveying mechanism, 31, a driving wheel, 32, a driven wheel, 33, a motor, 4, a battery piece feeding mechanism, 41, a battery piece material box, 42, a jacking cylinder, 43, a battery piece conveying mechanism, 44, a battery piece discharging mechanism, 5, a welding strip feeding mechanism, 51, a material shaft, 52, a welding strip coil, 53, a welding strip feeding motor, 54, a welding strip arranging mechanism, 55, a gravity wheel, 56, a welding aid box, 57, a welding strip cutting mechanism, 6, a bus bar feeding mechanism, 61, a bus bar coil, 62, a bus bar correcting device, 63, a bus bar cutting mechanism, 64, a bus bar conveying mechanism, 7, a welding mechanism, 8 and a string cutting mechanism.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.
As shown in fig. 1, 2 and 4, the battery module 1 is composed of a plurality of battery cells 101, and the plurality of battery cells 101 are arranged in an array. In the prior art, a plurality of battery strings 101b are formed by longitudinally welding battery pieces 101 through welding strips 104; then, the plurality of battery strings 101b are connected in the transverse direction by the bus bars 103, thereby performing the function of current equalization, and finally forming the battery assembly 1 with a plurality of rows and strings. The existing method needs to weld each battery string 101b separately, and the bus bar 3 for transversely connecting a plurality of battery strings 101b also needs to weld separately, so that the production efficiency is not high.
Example one
The embodiment provides a method for simultaneously welding a battery pack transversely and longitudinally, which improves the production efficiency and is convenient for automatic production, and comprises the following steps:
(1) a battery row 101a is placed on the welding table, and the battery row 101a is formed by arranging battery plates 101 in the transverse direction. If it is necessary to connect the battery row 101a laterally by a bus bar, the bus bar 103 is placed under the battery row 101a in advance, so that the battery row 101a presses the bus bar 103.
(2) A plurality of longitudinally extending solder strips 104 are placed at the rear end of the battery row 101a such that the front ends of the solder strips 104 each overlie the upper surface of the battery row 101a in front.
(3) A row of battery rows 101a is placed at the rear end, and the front end of the rear battery row 101a is pressed against the front solder ribbon 104, so that the solder ribbon 104 is connected to the lower surface of the rear battery row 101a, and the front end of the rear battery row 101a is lapped over the rear end of the front battery row 101 a. Similarly, if it is necessary to connect the battery row 101a laterally via the bus bar, the bus bar 103 is placed under the battery row 101a in advance, and the battery row 101a is pressed against the bus bar 103.
(4a) And (3) repeating the step (2) and the step (3) until the battery assembly 1 reaches a preset length, and simultaneously heating the bus bar 103 and the welding strip 104 to simultaneously complete the welding of the transverse direction and the longitudinal direction of the battery assembly 1, so as to form the required battery assembly 1 formed by transversely connecting a plurality of battery strings 101a with preset lengths.
Among them, in the step (1), it is preferable that each row of the battery rows 101a is laterally connected by the bus bar 103. However, for cost reasons, in practical application, one or more battery rows 101a need to be selected to be transversely connected through the bus bar 103 according to the final power output value, and the rest battery rows 101a need not to be transversely connected through the bus bar 103, so as to achieve technical and economic balance.
Step (4a) may be replaced by the following steps:
(4b) and (3) continuously repeating the step (2) and the step (3), and in the repeating process, the battery piece 101, the bus bar 103 and the welding strip 104 are moved forwards longitudinally together by the conveying mechanism 3, and when the battery piece 101 passes below the welding mechanism 7, the bus bar 103 and the welding strip 104 below the welding mechanism 7 are heated to form the battery assembly 1 which continuously extends longitudinally. Finally, the battery assembly 1 is cut to a predetermined length to form a battery assembly 1 of a desired length. The method can produce the battery component 1 along the longitudinal direction without stopping, realizes the automatic and non-stop simultaneous completion of the transverse and longitudinal welding of the battery component 1, and further improves the production efficiency.
Connecting the battery strings 101a laterally by the bus bars 103 can balance the current, reduce heating and hot spot effects, and improve assembly stability and life.
Example two
The difference between the present embodiment and the first embodiment is that, as shown in fig. 3, at least one overlapping electrode 102 is symmetrically disposed on each of two sides of the lower surface of the battery piece 101. The plurality of bus bars 103 are respectively disposed between two adjacent battery pieces 101 in any battery row 101a, and both ends of the bus bars are respectively connected to two overlapping electrodes 102 closest to the two adjacent battery pieces 101. In this embodiment, at least one bus bar 103 is disposed between two adjacent battery sheets 101 in each battery row 101b, and the bus bar 103 is matched with the overlapping electrodes 102 and respectively connects two overlapping electrodes 102 closest to each other on the two adjacent battery sheets 101.
The bus bar 103 of the present embodiment is shorter than the bus bar 103 of the first embodiment, and thus the metal material required for manufacturing the bus bar 103 can be greatly reduced, and the manufacturing cost can be reduced. In addition, in this embodiment, two sides of each cell 101 are symmetrically provided with three overlapping electrodes 102, and the laterally adjacent cells 101 are overlapped through three bus bars 103. The number of the bus bars 103 which are transversely overlapped can be flexibly configured by additionally arranging the splicing electrodes 102, and the number of the bus bars 103 which are overlapped can be increased, so that the current at the overlapped part can be reduced, the heat productivity can be reduced, the hot spot risk can be reduced, and the stability and the service life can be further improved.
EXAMPLE III
A device for simultaneously welding battery components in the transverse and longitudinal directions comprises a welding table 2, wherein a conveying mechanism 3 is arranged on the welding table, as shown in figure 5.
The feeding end of the conveying mechanism 3 is provided with a battery piece feeding mechanism 4, a solder strip feeding mechanism 5 and a bus bar feeding mechanism 6, and the battery assembly 1 is arranged at the feeding end of the conveying mechanism 3 according to the method of the first embodiment or the second embodiment. Specifically, the battery sheet feeding mechanism 4 sequentially places the battery rows 101b on the conveying mechanism 3; the solder strip feeding mechanism 5 places a solder strip 104 extending longitudinally at the rear end of the battery row 101 a; the bus bar feeding mechanism 6 previously places the bus bar 103 extending in the lateral direction at a predetermined position of the conveying mechanism 3.
The conveying mechanism 3 conveys the arranged battery components 1 from the feeding end to the discharging end. The heating bottom plate 21 is arranged on the top surface of the welding table 2, the surface of the welding table 2 is heated to a preset temperature, the battery assembly 1 is preheated, the welding mechanism 7 is arranged above the conveying mechanism 3, the battery assembly 1 conveyed below the welding mechanism 7 is heated, and meanwhile welding of the welding strip 104 and the bus bar 103 is completed, namely, the transverse welding and the longitudinal welding of the battery assembly 1 are simultaneously completed.
The discharging end of the conveying mechanism 3 is provided with a string cutting mechanism 8. The battery piece feeding mechanism 4, the welding strip feeding mechanism 5 and the bus bar feeding mechanism 6 are continuously arranged with the battery piece 101, the welding strip 104 and the bus bar 103 at the feeding end of the conveying mechanism 3, so that the battery assembly 1 continuously extends along the longitudinal direction, the conveying mechanism 3 conveys the battery assembly 1 to the string cutting mechanism 8 through the lower part of the welding mechanism 7 without stopping, and the string cutting mechanism 8 cuts the battery assembly 1 according to the preset length, finally the battery assembly 1 with the required length is manufactured and output.
Specifically, as shown in fig. 6, the conveying mechanism 3 includes a driving wheel 31 and a driven wheel 32 respectively installed at two ends of the welding table 2, the driving wheel 31 is installed at the discharging end of the conveying mechanism 3, and the driven wheel 32 is installed at the feeding end of the conveying mechanism 3. The driving wheel 31 and the driven wheel 32 are connected by a belt (not shown in the figure), and the transmission mechanism 3 further comprises a motor 33 fixedly mounted on the welding table 2, an output end of the motor 33 is coaxially connected with the driving wheel 31, and drives the driving wheel 31 to rotate, so as to drive the belt to rotate, and the battery assembly 1 is conveyed from the feeding end to the discharging end. The belt should be a high temperature resistant belt, improves the life of belt.
As shown in fig. 7 and 5, the battery sheet feeding mechanism 4 includes a battery sheet magazine 41, a lift cylinder 42, a battery sheet conveying mechanism 43, and a battery sheet discharging mechanism 44. The battery plate 101 is placed in the electromagnetic plate magazine 41 in advance, and when the electromagnetic plate magazine is operated, the lift cylinder 42 lifts up the battery plate 101, and then the conveying mechanism places the battery plate 101 on the battery plate conveying mechanism 43. One end of the battery sheet conveying mechanism 43 is positioned above the battery sheet material box 41, and the other end is positioned above the conveying mechanism 3. The cell conveying mechanism 43 moves the cell 101 to above the conveying mechanism 3, and then the cell 101 is sucked up by the cell discharging mechanism 44 by the suction force and placed on the conveying mechanism 3.
As shown in fig. 8 and 5, the welding wire feeding mechanism 5 includes a material shaft 51, a welding strip coil 52, a welding strip feeding motor 53, a welding strip sorting mechanism 54, a gravity wheel 55, a flux box 56, and a welding strip cutting mechanism 57. The solder strip coils 52 are wound with solder strips 104, which are respectively fixed on the fixing plates in the solder wire feeding mechanism 5 through the material shafts 51, the solder strip coils 52 are arranged in a staggered manner, and the number of the solder strip coils 52 is an integral multiple of the total number of grid lines of the battery sheets 101 in the whole battery sheet row 101 b. The solder strips are horizontally arranged after being guided by the guide wheel, and the distance between two adjacent solder strips 104 is equal to the distance between grid lines of the battery piece 101. After the solder strips 104 with equal horizontal distance pass through the solder strip arranging mechanism 54 and are primarily aligned by the gravity wheel 55, the position information of each solder strip 104 is sensed by the position sensor. The solder ribbon feeding motor 55 is fixedly mounted on the fixing plate, and the output end of the solder ribbon feeding motor is coaxial with the connecting material shaft 511, so that the material shaft 51 is driven to rotate, and solder ribbon with a preset length is output. The flux cartridge 56 and the solder-ribbon cutting mechanism 57 are both provided at the feed end of the conveyor mechanism 3. The solder ribbon 104 is first adhered with flux by the flux cartridge 56 and then fixed to the solder ribbon cutting mechanism 57, and the solder ribbon 104 is cut by the solder ribbon cutting mechanism 57 so that the solder ribbon 104 is placed at the feed end of the conveying mechanism 3.
As shown in fig. 9, the bus bar feeding mechanism 6 includes a bus bar roll 61, a bus bar correction device 62, a bus bar cutting mechanism 63, and a bus bar conveying mechanism 64. The bus bar roll 61 is wound with a bus bar 103. The bus bar 103 is straightened by the bus bar straightening device 62 and then pulled out by the bus bar cutting mechanism 63. The bus bar 103 is temporarily stored in the storage tank after being cut by the bus bar cutting mechanism 63 by a predetermined length. The bus bar carrying mechanism 64 takes out the bus bar 103 in the storage tank by vacuum suction and moves to a prescribed position of the feed end of the transport mechanism 3.
The battery sheet 101 of the present invention may be a one-piece battery sheet. Preferably, however, 1/n of the battery cells are selected as the battery cells 101, where n is a positive integer greater than or equal to 2.
According to the invention, the battery pack is welded transversely and longitudinally at the same time, so that the production efficiency can be improved, the automatic production of the battery pack can be realized, and the battery string group with transverse electric connection can balance current, reduce the influence of heating and hot spots, improve the stability of the battery pack and prolong the service life of the battery pack.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (9)
1. A method of simultaneously longitudinally and transversely welding a battery assembly including at least two longitudinally arranged battery rows, each of the battery rows including at least two transversely arranged battery cells, the method comprising;
arranging a transversely extending bus bar in at least one battery row for transversely connecting the battery sheets in the battery row;
welding strips are arranged between every two adjacent battery rows, and the front end of the rear battery row is lapped at the rear end of the battery piece in front; the front end of the welding strip is connected with the upper side of the battery piece in front, and the rear end of the welding strip is connected with the lower side of the battery piece in rear;
and heating the welding strip and the bus bar at the same time to complete the transverse and longitudinal simultaneous welding of the battery assembly.
2. The method for simultaneously longitudinally and transversely welding battery packs as claimed in claim 1, wherein the battery packs are cut to a predetermined length after the welding of the battery packs is completed.
3. The method for simultaneously longitudinally and transversely welding the battery packs as claimed in claim 1, wherein at least one overlapping electrode is symmetrically arranged on each of two sides of the battery piece; the plurality of bus bars are respectively arranged between two adjacent battery pieces in any battery row, and two ends of each bus bar are respectively connected with two lap joint electrodes which are closest to the two adjacent battery pieces.
4. The method for simultaneously longitudinally and transversely welding a battery pack according to claim 1, wherein the bus bars are disposed below the battery pieces.
5. The method for simultaneously longitudinally and transversely welding battery packs as claimed in claim 1, wherein the battery pieces are 1/n battery pieces, wherein n is a positive integer greater than or equal to 2.
6. The equipment for simultaneously longitudinally and transversely welding the battery components is characterized by comprising a welding table, wherein a conveying mechanism is arranged on the welding table;
the feeding end of the conveying mechanism is provided with a bus bar feeding mechanism, a battery piece feeding mechanism and a welding strip feeding mechanism; the battery piece feeding mechanism sequentially places battery rows on the conveying mechanism, and each battery row comprises at least two battery pieces which are transversely arranged; the welding strip feeding mechanism is used for placing a longitudinally extending welding strip at the rear end of the battery row; the bus bar feeding mechanism is used for placing transversely extending bus bars in advance at a preset position of the conveying mechanism;
and a welding mechanism is arranged above the conveying mechanism and used for heating the battery assembly conveyed to the lower part of the welding mechanism to complete the transverse and longitudinal simultaneous welding of the battery assembly.
7. The apparatus according to claim 6, wherein the discharge end of the conveying mechanism is provided with a string cutting mechanism for cutting the battery piece assembly to a predetermined length.
8. The apparatus for simultaneously longitudinally and transversely welding battery packs according to claim 6, wherein the conveying mechanism comprises a driving wheel, a driven wheel, a belt and a motor; the driving wheel and the driven wheel are respectively arranged at two ends of the welding table and are connected through the belt; the motor is fixedly arranged on the welding table, and the output end of the motor is connected with the driving wheel; the belt is a high temperature resistant belt.
9. The apparatus of claim 8, wherein the belt and the welding stage are provided with small holes, and the welding stage is provided with a vacuum extractor, so that the battery plate and the bus bar are adsorbed on the belt by vacuum adsorption.
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| CN202110365592.7A CN113097344A (en) | 2021-04-02 | 2021-04-02 | Method and equipment for simultaneously longitudinally and transversely welding battery components |
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| CN202110365592.7A CN113097344A (en) | 2021-04-02 | 2021-04-02 | Method and equipment for simultaneously longitudinally and transversely welding battery components |
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| CN104600141A (en) * | 2015-02-06 | 2015-05-06 | 保利协鑫（苏州）新能源运营管理有限公司 | Solar module |
| CN108231952A (en) * | 2017-12-29 | 2018-06-29 | 杭州瞩日能源科技有限公司 | Photovoltaic cell module and its preparation process |
| CN108735831A (en) * | 2018-07-27 | 2018-11-02 | 英利能源（中国）有限公司 | Solar cell, solar cell string and imbrication photovoltaic module |
| CN109623218A (en) * | 2019-01-31 | 2019-04-16 | 武汉三工智能装备制造有限公司 | Solar cell chip bonding machine |
| CN109671660A (en) * | 2019-01-31 | 2019-04-23 | 武汉三工智能装备制造有限公司 | The transmission mechanism and solar battery bonding machine of cell piece |
| CN209344050U (en) * | 2019-01-31 | 2019-09-03 | 武汉三工智能装备制造有限公司 | The transmission mechanism and solar battery bonding machine of cell piece |
| CN210443577U (en) * | 2019-09-24 | 2020-05-01 | 苏州阿特斯阳光电力科技有限公司 | Photovoltaic module |
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Application publication date: 20210709 |