CN114833496B - Welding method and welding equipment for bus bars between battery strings - Google Patents
Welding method and welding equipment for bus bars between battery strings Download PDFInfo
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- CN114833496B CN114833496B CN202210396210.1A CN202210396210A CN114833496B CN 114833496 B CN114833496 B CN 114833496B CN 202210396210 A CN202210396210 A CN 202210396210A CN 114833496 B CN114833496 B CN 114833496B
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- 238000003466 welding Methods 0.000 title claims abstract description 182
- 238000000034 method Methods 0.000 title claims abstract description 40
- 238000004519 manufacturing process Methods 0.000 claims abstract description 52
- 239000013305 flexible fiber Substances 0.000 claims description 4
- 230000001681 protective effect Effects 0.000 claims description 4
- 230000007246 mechanism Effects 0.000 description 123
- 238000001179 sorption measurement Methods 0.000 description 31
- 230000000712 assembly Effects 0.000 description 19
- 238000000429 assembly Methods 0.000 description 19
- 238000003825 pressing Methods 0.000 description 13
- 241000252254 Catostomidae Species 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 230000032258 transport Effects 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 3
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000033764 rhythmic process Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
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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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/36—Electric or electronic devices
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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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- Condensed Matter Physics & Semiconductors (AREA)
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- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Optics & Photonics (AREA)
- Mechanical Engineering (AREA)
- Battery Mounting, Suspending (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
The invention relates to the technical field of photovoltaic modules and discloses a method and equipment for welding bus bars between battery strings, wherein the method comprises the steps of entering a flattening plate and the battery string modules, simultaneously manufacturing different bus bars to be welded, separating the flattening plate from battery string units to be welded with the bus bars, and calibrating the positions of each battery string; grabbing the first bus bar and transporting the first bus bar to a transport position; transporting the primary bus bar from the transfer location to the take-up location; grabbing the first bus bar, the second bus bar and the third bus bar, placing the first bus bar, the second bus bar and the third bus bar at a tape taking position, and fixing the first bus bar, the second bus bar and the third bus bar at a welding position during welding; the first bus bar, the second bus bar and the third bus bar are transported from the take-up position to the welding position, and are heated and welded at the welding position. The welding method and the welding equipment provided by the invention realize the welding of the bus bars on the battery strings, optimize the welding process and improve the production efficiency of the welding equipment.
Description
Technical Field
The application relates to the technical field of photovoltaic modules, in particular to a method and equipment for welding bus bars between battery strings.
Background
Bus bars or straps are typically included in the battery assembly for connecting the plurality of battery strings to collect the current of the plurality of battery strings, which requires welding the bus bars at the ends or other location areas of the battery strings after the battery strings are manufactured.
In the welding process of bus bars on the existing battery strings, because of the difference of the formats of the battery strings, the positions and the sizes of the bus bars are more, in the production process, the bus bars at different positions need different bus bar manufacturing structures, the bus bars with different specifications also need different bus bar manufacturing structures, the welding process is not concise enough, the welding efficiency is lower, the cost of manufacturing equipment is high, the manufacturing procedure is not concise enough, and the manufacturing equipment is not efficient enough.
Disclosure of Invention
The embodiment of the invention provides a welding method and welding equipment for bus bars between battery strings, which are used for solving the problems that the welding process is not concise and the welding equipment is not efficient in the prior art.
In order to solve the technical problems, the embodiment of the application provides a welding method and welding equipment for bus bars between battery strings.
In a first aspect, the present invention provides a method for welding bus bars between battery strings in a battery string assembly, such that current of each of the battery strings is concentrated on the bus bars, characterized in that the bus bars include a first bus bar, a second bus bar, and a third bus bar; the first bus bar and the second bus bar are arranged on a first side of the battery string and are partially overlapped with each other, and the third bus bar is arranged on a second side of the battery string; the battery string assembly includes a screed and a battery string unit, and the welding method includes:
S100, transmitting and positioning the battery string assembly;
s200, manufacturing the first bus bar, the second bus bar and the third bus bar;
S300, separating the flattening plate and the battery string and calibrating the position of the battery string
S400, grabbing the first bus bar and transporting the first bus bar to a transport position;
s500, conveying the first bus bar from the transfer position to a take-up position;
S600, grabbing the first bus bar, the second bus bar and the third bus bar, placing the first bus bar, the second bus bar and the third bus bar at the tape taking position, and fixing the first bus bar, the second bus bar and the third bus bar at the welding position during welding;
and S700, conveying the first bus bar, the second bus bar and the third bus bar from the take-up position to a welding position, and heating and welding the first bus bar, the second bus bar and the third bus bar at the welding position.
Optionally, the grabbing the first bus bar, the second bus bar, and the third bus bar is placed at the taping position, and includes:
Grabbing the second bus bar, grabbing the first bus bar and placing the first bus bar at the tape taking position; the third bus bar is individually grasped and placed in the taping position.
Optionally, the transporting the first bus bar, the second bus bar, and the third bus bar from the take-up position to a welding position includes:
Simultaneously transporting the first and second bus bars from the pick-up station to a welding station; transporting the third bus bar solely from the taping station to the welding station;
simultaneously heat-welding the first bus bar and the second bus bar, separately heat-welding the third bus bar, and simultaneously heat-welding the first bus bar, the second bus bar and the third bus bar.
Optionally, the method further comprises:
after the manufactured first bus bars are transferred to the transfer position, continuing to manufacture the first bus bars to wait for transferring again;
after the first bus bars are conveyed to the welding position, a plurality of first bus bars continue to be conveyed for further conveying.
Optionally, the step S100 further includes:
s101, positioning the flattening plate;
S102, photographing and detecting the position of the battery string unit;
S103, calibrating the position of the flattening plate.
Optionally, the battery string unit sequentially comprises, from bottom layer to top layer: the battery string comprises a supporting plate, a protective film, flexible fibers and a battery string, wherein all components in the battery string unit are mutually attached.
In a second aspect, the present invention provides a welding apparatus for welding an inter-string bus bar in the string assembly, characterized by comprising: the device comprises a transmission positioning unit, a belt manufacturing unit, a string lifting unit, a transferring unit, a belt conveying unit, a belt taking and fixing unit and a welding unit;
the transmission positioning unit is used for transmitting the battery string assembly and positioning the battery string assembly at the welding position;
The tape-making unit is used for making the first bus bar, the second bus bar and the third bus bar;
the string lifting unit is used for separating the flattening plate from the battery string and calibrating the position of the battery string;
The transfer unit is used for transferring the first bus bar manufactured by the tape manufacturing unit to the transfer position;
the belt conveying unit is used for conveying the first bus bar from the transfer position to a belt taking position;
The strip taking and fixing unit is used for grabbing the first bus bar, the second bus bar and the third bus bar, placing the first bus bar, the second bus bar and the third bus bar at the strip taking position and fixing the first bus bar, the second bus bar and the third bus bar at the welding position during welding;
the welding unit is used for conveying the first bus bar, the second bus bar and the third bus bar from the taking position to a welding position and heating and welding the first bus bar, the second bus bar and the third bus bar at the welding position.
Optionally, the belt manufacturing unit includes a first belt manufacturing mechanism, a second belt manufacturing mechanism and a third belt manufacturing mechanism, and the different belt manufacturing mechanisms are independent from each other;
The first belt manufacturing mechanism is used for manufacturing a plurality of first bus bars, the belt manufacturing unit is also used for continuously manufacturing a plurality of first bus bars when the transfer unit transfers the first bus bars, and the first bus bars wait for being transferred again by the transfer unit;
The second belt making mechanism is used for making a plurality of second bus bars;
the third tape making mechanism is used for making a plurality of third bus bars.
Optionally, the tape taking and fixing unit comprises a first tape taking and fixing mechanism and a second tape taking and fixing mechanism, and the two tape taking and fixing mechanisms are mutually independent;
the first strap taking and fixing mechanism is used for grabbing the first bus bar after grabbing the second bus bar, placing the first bus bar on the welding unit, and fixing the first bus bar and the second bus bar on a battery string after the welding unit conveys the first bus bar and the second bus bar to a welding position;
The second tape-taking and tape-fixing mechanism is used for independently grabbing the third bus bar, placing the third bus bar on the welding unit and fixing the third bus bar on a battery string after the welding unit conveys the third bus bar to a welding position.
Optionally, the welding unit includes a first welding unit and a second welding unit, where the first welding unit is used to heat and weld the first bus bar and the second bus bar at the same time after the first bus bar and the second bus bar are transported to a welding position;
The second welding unit is used for independently heating and welding the third bus bar after the third bus bar is conveyed to a welding position; the first welding unit and the second welding unit are simultaneously heated and welded.
Optionally, the transferring unit is further configured to buffer a plurality of the first bus bars manufactured by the first tape manufacturing mechanism.
Optionally, the transfer unit includes: the first end of the movable gripper is in sliding connection with the guide rail, and the second end of the movable gripper is provided with at least one group of sucker assemblies for absorbing the first bus bar; the sucker assembly comprises at least one group of suckers, and each group of suckers independently adsorb the first bus bar.
Optionally, the first tape taking and fixing mechanism includes: the device comprises a first cantilever, at least two first adsorption assemblies, at least two second adsorption assemblies and at least one group of needle pressing assemblies, wherein a plurality of the first adsorption assemblies and a plurality of the second adsorption assemblies are detachably connected with one side of the first cantilever, and the needle pressing assemblies are detachably connected with the other side of the first cantilever; a plurality of the first adsorption assemblies for adsorbing the first bus bars; a plurality of the second adsorption assemblies for the second bus bars;
The second tape taking and fixing mechanism comprises: the second cantilever and at least two third adsorption components, the third adsorption component is used for adsorbing the third bus bar, and the structure of the second adsorption component is the same as that of the third adsorption component.
Optionally, the string lifting unit includes: the device comprises a fixed plate, a first correction mechanism, a second correction mechanism, a third correction mechanism, a left cantilever, a right cantilever and a plurality of suckers;
The first correction mechanism, the second correction mechanism and the third correction mechanism are all connected with the fixed plate, and the left cantilever and the right cantilever are respectively connected with the fixed plate in a sliding way on the left side and the right side of the bottom of the fixed plate; the suction cups are connected with the left cantilever and the right cantilever and used for sucking the battery strings;
the first correction mechanism is used for correcting the battery string along the length direction of the battery string; the second correction mechanism and the third correction mechanism are used for correcting the battery string along the width direction of the battery string; the second correcting mechanism and the third correcting mechanism are respectively arranged on two sides of the first correcting mechanism.
Optionally, the first correction mechanism includes a stepper motor and a driving block linear cam, where the stepper motor drives the driving block to rotate so as to offset the fixing plate; the second correction mechanism, the third correction mechanism and the first correction mechanism have the same structure, and the connection angles of the driving blocks in different correction mechanisms and the driving shaft of the stepping motor are different.
The welding method for the bus bars between the battery strings provided by the embodiment of the invention comprises three bus bars, wherein the positions of the bus bars are different, specifically, the first bus bar and the second bus bar are welded on one side of the battery strings after being overlapped, and the fourth bus bar is welded on the other side of the battery strings. Firstly, the screed plate and the battery string assembly are included, different bus bars to be welded are manufactured simultaneously in the process, and the different bus bars are transported and transported to be finally placed at a welding position to be welded on the battery string after the manufacture is completed. Separating a leveling plate and a battery string unit needing to be welded with a bus bar, and calibrating the positions of the battery strings; grabbing the first bus bar and transporting the first bus bar to a transport position; transporting the primary bus bar from the transfer location to the take-up location; grabbing the first bus bar, the second bus bar and the third bus bar, placing the first bus bar, the second bus bar and the third bus bar at a tape taking position, and fixing the first bus bar, the second bus bar and the third bus bar at a welding position during welding; the first bus bar, the second bus bar and the third bus bar are transported from the take-up position to the welding position, and are heated and welded at the welding position. The welding method provided by the invention realizes the welding of the bus bars on the battery strings, optimizes the welding process, and solves the problem that the whole quality of welding equipment is large because the manufacturing process is complicated in the prior art.
Drawings
FIG. 1 is a schematic diagram showing a process of a method for welding bus bars between battery strings according to the present application;
FIG. 2 is a schematic diagram showing the structure of a battery string assembly according to an embodiment of the present application;
fig. 3 shows an overall structure of a battery inter-string bus bar welding apparatus provided by the present application;
Fig. 4 is a schematic structural view showing a transfer unit in a battery inter-string bus bar welding apparatus according to the present application;
Fig. 5 is a schematic structural view showing a transfer unit and a belt carrying unit in a battery inter-string bus bar welding apparatus according to the present application;
Fig. 6 is a schematic diagram showing a structure of a tape taking and fixing unit in a battery inter-string bus bar welding device according to the present application;
fig. 7 is a schematic diagram showing a structure of a string lifting unit in a bus bar welding device between battery strings according to the present application;
Fig. 8 is a schematic diagram showing a correction mechanism of a string lifting unit in a battery string bus bar welding device.
Reference numerals:
10: a flattening plate; 20: a first bus bar; 30: a second bus bar; 40: a third bus bar; 1: a transmission positioning unit; 2: a belt manufacturing unit; 21: a first belt making mechanism; 22: a second belt making mechanism; 23: a third belt making mechanism; 3: a belt transporting unit; 4: a string lifting unit; 41: a fixing plate; 42: a first correction mechanism; 421: a stepping motor; 422: a driving block; 43: a second correction mechanism; 44: a third correction mechanism; 45: a left cantilever; 46: a right cantilever; 5: taking out a belt fixing unit; 51: a first tape taking and fixing mechanism; 511: a first cantilever; 512: a first adsorption assembly; 513: a second adsorption assembly; 514: a needle pressing assembly; 52: a second tape taking and fixing mechanism; 6: a welding unit; 61: a first welding unit; 62: a second welding unit; 7: a transfer unit; 71: a guide rail; 72: moving the gripper; 8: and a battery string unit.
Detailed Description
The technical solutions in the application embodiments will be clearly and completely described below with reference to the drawings in the application embodiments. Furthermore, the appearances of the phrase "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
It should also be noted that in this document relational terms such as first and second, and the like are used solely to distinguish one entity from another entity without necessarily requiring or implying any actual such relationship or order between such entities. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that an article or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such article or terminal. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude that an additional identical element is present in an article or terminal device comprising the element.
In a first aspect, as shown in fig. 1, the present application provides a welding method for welding bus bars between battery strings in a battery string assembly, such that current of each battery string is concentrated on the bus bars, wherein the bus bars include a first bus bar 20, a second bus bar 30, and a third bus bar 40; the first bus bar 20 and the second bus bar 30 are disposed at a first side of the battery string and partially overlap each other, and the third bus bar 40 is disposed at a second side of the battery string; the battery string assembly comprises a screed 10 and a battery string unit 8, and the welding method comprises:
s100, transmitting and positioning a battery string assembly;
s200, manufacturing a first bus bar 20, a second bus bar 30 and a third bus bar 40;
S300, separating the flattening plate 10 from the battery string and calibrating the position of the battery string
S400, grabbing the first bus bar 20 and transferring the first bus bar to a transfer position;
S500, conveying the first bus bar 20 from a transfer position to a take-up position;
s600, the first bus bar 20, the second bus bar 30, and the third bus bar 40 are grasped in the take-up position, and fixed in the welding position at the time of welding;
S700, the first bus bar 20, the second bus bar 30, and the third bus bar 40 are transported from the take-up position to the welding position, and are heat-welded at the welding position.
The invention comprises a first bus bar 20, a second bus bar 30 and a third bus bar 40, wherein the manufacturing and conveying modes and conveying positions of different bus bars are different, wherein after a plurality of first bus bars 20 are manufactured, the first bus bars 20 are grabbed and conveyed to a transferring position, then the first bus bars 20 are conveyed from the transferring position to a taping position, then the first bus bars 20, the second bus bars 30 and the third bus bars 40 are all placed in the taping position, and then the first bus bars 20, the second bus bars 30 and the third bus bars 40 positioned in the taping position are conveyed to a welding position to be heated and welded together.
It should be noted that, the battery string unit 8 in the present application includes, in order from the bottom layer to the top layer: the support plate, the protective film, the flexible fiber and the battery string, namely the battery string unit 8 is a combined structure comprising the battery string, wherein the support plate, the protective film, the flexible fiber and the battery string are attached.
As shown in fig. 1 and 2, firstly, the leveling plate 10 (i.e. glass for placing the battery string unit, or other plates for preventing the battery string unit can be used according to the characteristics of the actual battery string unit, the invention is not limited), and the battery string assembly of the battery string unit 8 enter the welding position, in the process, the first bus bar 20, the second bus bar 30 and the third bus bar 40 to be welded are manufactured at the same time, as shown in fig. 2, the manufacturing positions of different bus bars are different, and the placing positions are also different. First, the screed 10 and the battery string assembly are included, during which different bus bars to be welded are simultaneously manufactured, and after the manufacture are transported and transported to be finally placed at a welding position to be welded on the battery string. Wherein the method comprises the steps of separating a leveling plate 10 from a battery string unit 8 of which a bus bar needs to be welded and calibrating the positions of the battery strings; grabbing the first bus bar 20 and transferring at a transfer location; transporting the primary bus bar 20 from the transfer position to the take-up position; the first bus bar 20, the second bus bar 30, and the third bus bar 40 are grasped in the taping position, and fixed in the welding position at the time of welding; the first bus bar 20, the second bus bar 30, and the third bus bar 40 are transported from the take-up position to the welding position, and are heat-welded at the welding position. The welding method provided by the invention realizes the welding of the bus bars on the battery strings, optimizes the welding process and solves the problem of complicated manufacturing procedures in the prior art.
It should be noted that, as shown in fig. 2, each battery string in the present invention is placed longitudinally. In fig. 2, the welding positions of the bus bars are explained by taking twelve strings of battery strings as an example, and the number of the specific battery strings is appropriately adjusted according to the specification parameters of the actual battery string assembly, which is not particularly limited in the present invention. In addition, the dimensions of the bus bars at different positions, such as length, width, thickness, etc., are related to the specifications of the battery string assembly in actual use, and are not particularly limited in the present invention.
In addition, the first bus bar 20 is grasped after the second bus bar 30 is grasped and placed in the take-up position; the third bus bar 40 is individually grasped and placed in the take-up position. Simultaneously transporting the first bus bar 20 and the second bus bar 30 from the pick-up position to the welding position; the third bus bar 40 is transported solely from the take-up position to the welding position. The first bus bar 20 and the second bus bar 30 are simultaneously heat-welded, the third bus bar 40 is separately heat-welded, and the first bus bar 20, the second bus bar 30, and the third bus bar 40 are simultaneously heat-welded.
That is, the first bus bar 20 and the second bus bar 30 according to the present invention are grasped first, then the second bus bar 30 is grasped, that is, the first bus bar 20 and the second bus bar 30 are stacked together, and then the first bus bar 20, the second bus bar 30, and the third bus bar 40 are carried from the take-up position to the welding position, and the bus bars are fixed under the welding strips extending from the battery string at the time of welding. Because, according to the requirements of the assembly structure, the first bus bar 20 is a short bus bar, the second bus bar 30 and the third bus bar 40 are relatively long bus bars, the first bus bar 20 serves to connect the battery string assembly with an external junction box, i.e., the first bus bar 20 is actually a small lead wire, which can draw out the current on the battery string assembly, and the third bus bar 40 and the second bus bar 30 serve to collect the current on the battery string assembly, thereby achieving the purpose of connecting the battery strings in series or parallel.
Because the first bus bar 20 and the second bus bar 30 are in a superimposed relationship, the first bus bar 20 and the second bus bar 30 are welded at the same time, the third bus bar 40 is welded separately, and the welding parameters are different from those of the third bus bar 40 when the first bus bar 20 and the second bus bar 30 are welded, for example, the welding time of the former is slightly longer than the welding time of the latter, the welding temperature of the former is slightly longer than the welding temperature of the latter, and the specific welding parameters are related to the performance parameters of the bus bar, and need to be specifically adjusted according to the actual situation, which is not particularly limited in the present invention.
In addition, the welding method further includes, after the manufactured plurality of first bus bars 20 are transferred to the transfer position, continuing to manufacture the first bus bars 20 to wait for transfer again; after the primary bus bar 20 is transported to the welding station, the transfer of several primary bus bars 20 is continued waiting for transport again.
In this embodiment, after the fabrication of a part of the first bus bar 20 is completed, the fabrication mechanism of the first bus bar 20 is handed to the transfer mechanism of the first bus bar 20 to transfer the first bus bar 20 to the mechanism for transferring the first bus bar 20, and in the transfer process of the transfer mechanism of the first bus bar 20, the fabrication mechanism of the first bus bar 20 continues to fabricate the first bus bar 20, and after the fabrication of the first bus bar 20 is completed, the transfer unit 7 of the first bus bar 20 waits for returning to continue the transfer. I.e. the fabrication mechanism of the primary bus bar 20 will buffer one or more primary bus bars 20. Likewise, during the time that the mechanism of conveyance of the first bus bar 20 conveys the first bus bar 20, the mechanism of conveyance of the first bus bar 20 returns to convey the group of first bus bars 20 again, and the mechanism of conveyance of the first bus bar 20 waits at the waiting position returns. Therefore, a part of the first bus bars 20 can be cached in the tape making mechanism and the transferring mechanism, namely, waiting is not needed when the transferring and conveying mechanism works, so that the manufacturing, transferring and conveying rhythms of the first bus bars 20 can be increased, and the processing efficiency of the assembly is improved.
In some embodiments, in S100 of the present application, even if the battery string assembly enters the welding position, the step may further include:
s101, positioning the flattening plate 10;
S102, photographing and detecting the position of the battery string unit 8;
S103, calibrating the position of the screed 10.
In the application, the leveling plate 10 and the battery string units 8 enter simultaneously, the positions of the leveling plate 10 and the battery string units 8 need to be positioned after the entering are confirmed, the positions of the leveling plate 10 are calibrated according to set conditions, and the battery string units 8 can be conveyed to a welding position to wait for welding after the calibration. Specifically, the position of the screed 10 is first identified by photographing the screed 10 after positioning the screed 10, and then the screed 10 is calibrated according to a preset positioning condition to ensure the welding accuracy of the bus bars.
In a second aspect, the present invention provides a welding apparatus for welding an inter-string bus bar in a string assembly, the welding apparatus comprising: the device comprises a transmission positioning unit 1, a belt manufacturing unit 2, a transferring unit 7, a belt conveying unit 3, a string lifting unit 4, a belt taking and fixing unit 5 and a welding unit 6;
a transmission positioning unit 1 for transmitting the battery string assembly and positioning the battery string assembly at a welding position;
a taping unit 2 for producing a first bus bar 20, a second bus bar 30, and a third bus bar 40;
A string lifting unit 4 for separating the screed 10 from the battery string and calibrating the position of the battery string;
a transfer unit 7 for transferring the first bus bar 20 manufactured by the taping unit 2 to a transfer position;
A taping unit 3 for conveying the primary bus bar 20 from the transfer position to the taping position;
A taping and fixing unit 5 for grasping the first bus bar 20, the second bus bar 30, and the third bus bar 40, placing them in a taping position, and fixing them in a welding position at the time of welding;
The welding unit 6 is used to convey the first bus bar 20, the second bus bar 30, and the third bus bar 40 from the take-up position to the welding position, and heat-weld them at the welding position.
The first belt making mechanism 21 is further used to continue making a plurality of first bus bars 20 while the transfer unit 7 transfers the first bus bars 20, waiting to be transferred again by the transfer unit 7. In addition, after the primary bus bar 20 is conveyed to the welding position, the transfer of the primary bus bar 20 is continued for the second conveyance. So that the manufacturing efficiency of the device is further increased.
As shown in fig. 3, the belt manufacturing unit 2 includes a first belt manufacturing mechanism 21 and a second belt manufacturing mechanism 22, and the first belt manufacturing mechanism 21 and the second belt manufacturing mechanism 22 are independent of each other. Wherein the first tape making mechanism 21 is used for making a plurality of first bus bars 20; a second taping mechanism 22 for making a plurality of second bus bars 30; the third taping mechanism 23 is used to make the third bus bar 40.
That is, in the present invention, the first bus bar 20 is the independent taping unit 2, the independent transferring unit 7, and the independent taping unit 3 are responsible for the manufacturing, transferring, and transporting processes of the first bus bar 20, and the second bus bar 30 and the third bus bar 40 are also manufactured in the independent taping mechanism. Because of the difference in size between the first bus bar 20 and the second bus bar 30 and the third bus bar 40, the first bus bar 20 having a smaller size is independently manufactured and carried.
As shown in fig. 3, which is a schematic top view of the welding apparatus, some mechanisms have a height difference in the vertical plane for top view reasons. In addition, the arrows in the figure are directed to indicate the direction in which the welding unit 6 and the take-up and take-off unit 5 need to move in the region where the battery string is located when welding the bus bar. The first taping mechanism 21 and the transfer unit 7 of the first bus bar 20 are provided on the right side of the battery string unit 8, and may be provided on the left side of the battery string unit 8 as needed, which is not particularly limited in the present invention. In addition, in the present embodiment, the first tape manufacturing mechanism 21 makes one first bus bar 20 at a time, the transfer unit 7 transfers two first bus bars 20 at a time, and the tape transporting mechanism transports three sets (6 first bus bars 20 in total) at a time, and for the specific number of one-time tapes, the number of one-time transfers, and the number of one-time transported first bus bars 20, the number may be adjusted accordingly according to the model requirement of the actual battery string unit 8, and the size specification of the device, which is not particularly limited in the present invention.
The welding unit 6 includes a first welding unit 61 and a second welding unit 62, the first welding unit 61 being used for simultaneously heat-welding the first bus bar 20 and the second bus bar 30, the second welding unit 62 being used for separately heat-welding the third bus bar 40; the first welding unit 61 and the second welding unit 62 are simultaneously heat-welded.
Specifically, as shown in fig. 4 and 5, the above-mentioned transfer unit 7 is constituted of: the guide rail 71 and the movable gripper 72 are formed, a first end of the movable gripper 72 is slidably connected with the guide rail 71, and a second end of the movable gripper 72 is provided with at least one sucking disc assembly. In actual use, a vacuum generator may be provided, which is connected to the suction cup assembly for driving the suction cup assembly to suck the primary bus bar 20; the suction cup assembly includes at least two groups of suction cups, each group of suction cups independently sucking the first bus bar 20. The sucking disc can adsorb first busbar 20 under vacuum generator's effect, and transfer unit 7 needs to transfer the first busbar 20 of first system belt mechanism 21 preparation to fortune area unit 3, so, transfer unit 7 needs to reciprocate between first system belt mechanism 21 and fortune area unit 3, in reciprocating motion, the sucking disc subassembly on the tongs snatchs first busbar 20, and the size of sucking disc subassembly has decided the tongs and once only snatches the quantity of first busbar 20. In this embodiment, the gripper is designed to grip two first bus bars 20 at a time, that is, after the gripper grips the first bus bar 20, it waits for the tape making mechanism to make the second first bus bar 20 again, and then transfers the two first bus bars 20 together to the tape carrying unit 3.
As shown in fig. 5, only a part of the belt carrying unit 3 is shown, and the track length in the mechanism needs to be set according to the stroke length that the actual belt carrying unit 3 needs to move when carrying the belt, which is not particularly limited in the present invention. In addition, the belt carrying unit 3 includes three positions where the first bus bars 20 are disposed, and in practical use, the positions may be adjusted according to the number of the first bus bars 20, which is not particularly limited in the present invention. As can be seen from fig. 5, the first bus bar 20 manufactured by the first tape manufacturing mechanism 21 is transferred onto the tape transporting unit 3 by the transferring unit 7, and the motor or other driving device drives the tape transporting unit 3 to transport the first bus bar 20 to the tape taking position to wait for being taken by the corresponding tape fixing mechanism.
In some embodiments, the tape taking and fixing unit 5 includes a first tape taking and fixing mechanism 51 and a second tape taking and fixing mechanism 52, where the first tape taking and fixing mechanism 51 and the second tape taking and fixing mechanism 52 are independent from each other; wherein the first bus bar 20 is grasped and placed on the welding unit 6 after being used to grasp the second bus bar 30, and the first bus bar 20 and the second bus bar 30 are fixed on the battery string after the welding unit 6 conveys the first bus bar 20 and the second bus bar 30 to the welding position; the second tape extracting and fixing mechanism 52 is used to grasp the third bus bar 40 alone and place it on the welding unit 6, and fix the third bus bar 40 to the battery string after the welding unit 6 carries the third bus bar 40 to the welding position.
In the embodiment of the invention, two tape taking and fixing mechanisms are arranged for respectively taking different bus bars at different positions because of the difference of the bus bars. The first strap-fixing mechanism 51 is used for taking the first bus bar 20 and then taking the second bus bar 30, namely, the first bus bar 20 and the second bus bar 30 are overlapped on the first strap-fixing mechanism 51, and then the first strap-fixing mechanism 51 fixes the first bus bar 20 and the second bus bar 30 on the battery string together after the welding unit 6 positioned on the first side of the battery string unit 8 conveys the first bus bar 20 and the second bus bar 30 to the welding position; the second taping and fixing mechanism 52 is used to take the third bus bar 40 on the taping position, and after the welding unit 6 located on the second side of the battery string unit 8 carries the third bus bar 40 to the welding position, fix the third bus bar 40 on the battery string. I.e., by simultaneously providing the welding units 6 at both sides of the battery string to achieve simultaneous welding of all bus bars on the entire battery string unit 8, to increase the production efficiency of the welding apparatus. In addition, in the present embodiment, two first tape taking and fixing mechanisms 51 and two second tape taking and fixing mechanisms 52 are provided, and the number of the first tape taking and fixing mechanisms 51 and the number of the second tape taking and fixing mechanisms 52 are related to the size of the battery string unit 8, and may be specifically selected according to the physical condition, which is not particularly limited in the present invention.
Specifically, as shown in fig. 6, the first tape taking and fixing mechanism 51 includes: the first cantilever 511, at least two first adsorption assemblies 512, at least two second adsorption assemblies 513 and at least one group of needle pressing assemblies 514, wherein the first adsorption assemblies 512 and the second adsorption assemblies 513 are detachably connected with one side of the cantilever, and the needle pressing assemblies 514 are detachably connected with the other side of the cantilever; the plurality of first adsorption assemblies 512 are used for adsorbing the first bus bars 20; a plurality of second adsorption assemblies 513 are used for the second bus bars 30; the second tape taking and fixing mechanism comprises: the second suspension arm and at least two third adsorption assemblies for adsorbing the third bus bar 40, and the second adsorption assembly 513 has the same structure as the third adsorption assembly.
That is, the first tape taking and fixing mechanism 51 and the second tape taking and fixing mechanism 52 in the embodiment of the present invention are both composed of an adsorption assembly and a needle pressing assembly, wherein, since the first tape taking and fixing mechanism 51 needs to simultaneously grip the first bus bar 20 and the second bus bar 30, two adsorption assemblies, i.e., a first adsorption assembly and a second adsorption assembly, are required to be disposed in the first tape taking and fixing mechanism 51 for adsorbing the first bus bar 20 and the second bus bar 30, respectively. Only one kind of adsorption component (i.e., the third adsorption component) and one kind of pin pressing component are needed in the second tape taking and fixing mechanism, wherein the structures of the adsorption component and the pin pressing component in the first tape taking and fixing mechanism 51 and the second tape taking and fixing mechanism 52 are basically the same, only the distribution positions and adsorption strength of the adsorption components in different tape taking mechanisms and the sizes of the suckers are different, the pin pressing of the pin pressing components of the two are basically consistent, only the positions of the pin pressing components in different tape taking mechanisms can be different, and the pin pressing components are particularly related to the formats of the first bus bar 20, the second bus bar 30, the third bus bar 40 and the battery string units 8, and are required to be particularly adjusted according to actual sizes, so that the invention is not particularly limited.
In addition, it should be noted that, in the embodiment of the present invention, the number of the adsorption components and the number of the needle pressing components are not limited in particular, and may be specifically adjusted according to practical situations.
In some embodiments, as shown in fig. 7, the string lifting unit 4 includes: a fixed plate 41, a first correction mechanism 42, a second correction mechanism 43, a third correction mechanism 44, a left cantilever 45, a right cantilever 46 and a plurality of suckers; different correction mechanisms are used to correct different directions. The first correction mechanism 42, the second correction mechanism 43 and the third correction mechanism 44 are all connected with the fixed plate 41, and the left cantilever 45 and the right cantilever 46 are respectively connected with the fixed plate 41 in a sliding way on the left side and the right side of the bottom of the fixed plate 41; and a plurality of the battery strings are connected with the left cantilever 45 and the right cantilever 46 for adsorbing the battery strings. A first correction mechanism 42 for correcting the battery string along the length direction of the battery string (including the forward direction and the reverse direction of the length direction of the battery string); the second correction mechanism 43 and the third correction mechanism 44 are for correcting the battery string in the width direction of the battery string (including the forward direction and the reverse direction of the width direction of the battery string); the second correction mechanism 43 and the third correction mechanism 44 are provided separately on both sides of the first correction mechanism 42.
That is, in the embodiment of the present invention, the string lifting unit 4 includes a plurality of string lifting hands, and each string lifting hand includes a fixing plate 41, a first correction mechanism 42, a second correction mechanism 43, a third correction mechanism 44, a left cantilever 45, a right cantilever, and a plurality of suction cups. The string lifting hand is used for lifting the battery string unit 8 or the battery string and correcting the position of the battery string according to set conditions, when in correction, the three correction mechanisms are uniformly arranged in the length direction of the battery string, the first correction mechanism 42 is arranged in the middle area of the battery and used for correcting the battery string along the length direction of the battery string, the second correction mechanism 43 and the third correction mechanism 44 are used for correcting the battery string along the width direction of the battery string, and therefore, under the interaction of the three correction mechanisms, the battery string unit 8 or the battery string can realize correction in two mutually perpendicular directions in the same plane.
Specifically, as shown in fig. 8, the first correction mechanism 42 includes a stepping motor 421 and a driving block 422, the stepping motor 421 drives the driving block 422 to rotate so as to offset the fixed plate 41, and the driving block 422 is a linear cam; the second correction mechanism 43 and the third correction mechanism 44 have the same structure as the first correction mechanism 42, and the connection position between the driving block 422 and the driving shaft of the stepping motor 421 is different in the different correction mechanisms. The structure of the driving block 422 and the mounting position on the output shaft of the stepping motor 421 determine the direction in which the battery string is corrected. The control mode for adjusting the positions of the battery strings by utilizing a plurality of drives has higher adjustment progress and can realize fine adjustment.
In addition, the length of the fixing plate 41 in the embodiment of the present invention is related to the size of the battery string compatible with the present welding apparatus, and the sizes of the left cantilever 45 and the right cantilever 46 and the sliding range thereof are also related to the size of the battery string compatible with the present welding apparatus, which is not particularly limited in the present invention.
Finally, the present invention provides a method and apparatus for welding bus bars between battery strings, the method comprising entering a screed 10 and a battery string assembly, during which different bus bars to be welded are simultaneously manufactured, and after the manufacture, the different bus bars are transported and transported to be finally placed at a welding position to be welded to the battery strings. Wherein the method comprises the steps of separating a leveling plate 10 from a battery string unit 8 of which a bus bar needs to be welded and calibrating the positions of the battery strings; grabbing the first bus bar 20 and transferring at a transfer location; transporting the primary bus bar 20 from the transfer position to the take-up position; the first bus bar 20, the second bus bar 30, and the third bus bar 40 are grasped in the taping position, and fixed in the welding position at the time of welding; the first bus bar 20, the second bus bar 30, and the third bus bar 40 are transported from the take-up position to the welding position, and are heat-welded at the welding position. The welding method and the welding equipment provided by the invention realize the welding of the bus bars on the battery strings, optimize the welding process and improve the production efficiency of the welding equipment.
In addition, it should be noted that the above-described embodiments are some embodiments, but not all embodiments. All other embodiments, based on the embodiments in the application, which a person of ordinary skill in the art would obtain without inventive faculty, are within the scope of the application.
It should be noted that, in the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described as different from other embodiments, and identical and similar parts between the embodiments are all enough to be referred to each other.
Claims (3)
1. An inter-cell string bus bar welding method for welding bus bars between cell strings in a cell string assembly so that currents of the respective cell strings are converged on the bus bars, characterized in that the bus bars include a first bus bar (20), a second bus bar (30), and a third bus bar (40); the first bus bar (20) and the second bus bar (30) are arranged on a first side of the battery string and are partially overlapped with each other, and the third bus bar (40) is arranged on a second side of the battery string; the battery string assembly comprises a screed (10) and a battery string unit (8), the welding method comprising:
S100, transmitting and positioning the battery string assembly;
wherein, before S100, the method further comprises:
s101, positioning the screeds (10);
S102, photographing and detecting the position of the battery string unit (8);
s103, calibrating the position of the flattening plate (10);
s200, manufacturing the first bus bar (20), the second bus bar (30) and the third bus bar (40);
S300, separating the flattening plate (10) from the battery string and calibrating the position of the battery string;
S400, grabbing the first bus bar (20) and transferring the first bus bar to a transfer position;
S500, conveying the first bus bar (20) from the transfer position to a take-up position;
S600, grabbing the second bus bar (30), grabbing the first bus bar (20) and placing the first bus bar in the tape taking position, and grabbing the third bus bar (40) and placing the third bus bar in the tape taking position; and fixing it at the welding position during welding;
S700, simultaneously conveying the first bus bar (20) and the second bus bar (30) from the take-up position to a welding position; transporting the third bus bar (40) solely from the take-up position to the welding position; simultaneously heat-welding the first bus bar (20) and the second bus bar (30), separately heat-welding the third bus bar (40), and simultaneously heat-welding the first bus bar (20), the second bus bar (30), and the third bus bar (40).
2. The method of welding an inter-string bus bar of a battery of claim 1, further comprising:
After the manufactured plurality of first bus bars (20) are transferred to the transfer position, continuing to manufacture the first bus bars (20) to wait for transfer again;
After the first bus bar (20) is transported to the welding position, a plurality of first bus bars (20) are continuously transported to wait for being transported again.
3. The method of welding an inter-string bus bar according to claim 1, wherein the battery string unit (8) comprises, in order from the bottom layer to the top layer: the battery string comprises a supporting plate, a protective film, flexible fibers and a battery string, wherein all components in the battery string unit (8) are mutually attached.
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| CN117600698B (en) * | 2024-01-22 | 2024-05-03 | 苏州小牛自动化设备有限公司 | Typesetting and welding method and equipment for battery strings |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107639362A (en) * | 2017-11-02 | 2018-01-30 | 宁夏小牛自动化设备有限公司 | Battery strings precision composing device and composition method and busbar bonding machine |
| CN113814596A (en) * | 2021-10-25 | 2021-12-21 | 宁夏小牛自动化设备有限公司 | Welding method and welding equipment for collector belt of laminated tile assembly |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5344594B2 (en) * | 2009-04-02 | 2013-11-20 | シャープ株式会社 | Method for manufacturing solar cell sheet array and solar cell sheet array |
| CN107243680A (en) * | 2017-07-28 | 2017-10-13 | 宁夏小牛自动化设备有限公司 | The busbar that battery strings group is separated with glass interconnects welding equipment and method with welding |
| CN208819908U (en) * | 2018-10-29 | 2019-05-03 | 宁夏小牛自动化设备有限公司 | Three outlet version type welding of half component and convergent belt interconnect welding equipment |
| CN109158824B (en) * | 2018-10-29 | 2024-03-01 | 宁夏小牛自动化设备股份有限公司 | Three-outlet-line-type bus-belt supply mechanism, bus-belt welding machine and belt supply method |
| CN109888055B (en) * | 2019-01-30 | 2020-10-20 | 宁夏小牛自动化设备有限公司 | Multi-bending busbar assembly manufacturing method and multi-bending busbar assembly manufacturing equipment |
| CN110238519A (en) * | 2019-06-18 | 2019-09-17 | 江阴德龙激光能源设备有限公司 | Busbar automatic welding device |
| CN111438451A (en) * | 2020-04-14 | 2020-07-24 | 无锡奥特维科技股份有限公司 | Battery string welding equipment and battery string welding method |
| WO2021248884A1 (en) * | 2020-06-09 | 2021-12-16 | 江苏昊宇光伏科技有限公司 | All-black solar photovoltaic module and manufacturing method therefor |
-
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107639362A (en) * | 2017-11-02 | 2018-01-30 | 宁夏小牛自动化设备有限公司 | Battery strings precision composing device and composition method and busbar bonding machine |
| CN113814596A (en) * | 2021-10-25 | 2021-12-21 | 宁夏小牛自动化设备有限公司 | Welding method and welding equipment for collector belt of laminated tile assembly |
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