Prefabricated bus bar arrangement equipment

By prefabricating the busbar and welding strip together using a prefabricated busbar layout equipment, and then precisely arranging and welding them on the photovoltaic module, the problems of insufficient busbar welding and microcracks in the cells are solved, thus improving the quality of the photovoltaic module.

CN223928716UActive Publication Date: 2026-02-17WUHAN DR LASER TECH CORP LTD
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Patent Information

Application Number
CN202520045070.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-09
Publication Date
2026-02-17
Estimated Expiration
2035-01-09

AI Technical Summary

Technical Problem

In the production of photovoltaic cell modules, insufficient contact during the welding of busbars and solder strips can lead to incomplete soldering. Furthermore, photovoltaic cell modules with hidden busbars are prone to microcracks in the cells due to the compression of the busbars.

Method used

Using prefabricated busbar layout equipment, the busbar and welding strip are prefabricated together and transported to the preset position of the photovoltaic cell module by a gantry conveyor mechanism, and then laser welding or hot pressing welding is performed to avoid incomplete welding and microcracks in the cell.

Benefits of technology

This effectively avoids problems such as poor soldering of the busbar and microcracks in the solar cells, thus improving the product quality of photovoltaic modules.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The prefabricated bus bar arrangement equipment comprises a photovoltaic cell assembly bearing and conveying mechanism, a prefabricated bus bar welding device and a gantry carrying mechanism. Wherein the bearing and conveying mechanism conveys the photovoltaic cell assembly in the X direction; the prefabricated bus bar welding device is arranged on one side of the bearing and conveying mechanism and used for providing a prefabricated bus bar. The gantry carrying mechanism comprises a prefabricated bus bar grabbing module, the prefabricated bus bar grabbing module is arranged above the bearing conveying mechanism, the prefabricated bus bar grabbing module is fixed to a driving module, and the prefabricated bus bar grabbing module moves in the horizontal direction and the vertical direction through the driving module to be used for carrying the prefabricated bus bar to the preset position of the photovoltaic cell assembly. The bus bar and the welding strip to be welded with the bus bar are prefabricated together to form the prefabricated bus bar, then the prefabricated bus bar is arranged at the corresponding position on the photovoltaic module battery piece, then laser welding or welding in the hot pressing process is carried out, and the problems of insufficient welding of the bus bar and subfissure of the battery piece are avoided.
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Description

TECHNICAL FIELD

[0001] The utility model relates to solar cell technical field, and specifically relates to a prefabricated busbar arrangement equipment. BACKGROUND

[0002] In the production of photovoltaic cell module, the cell piece is connected through the welding band, and the current generated by the cell piece is led out. It is necessary to weld the busbar and the plurality of welding bands, and the busbar is used to collect and transmit the current generated by the photovoltaic cell module. In the prior art, when the busbar and the welding band are welded, the busbar and the welding band do not contact fully during welding, which leads to frequent false welding and affects the final product quality of the photovoltaic cell module. At the same time, for the photovoltaic cell module with hidden busbar, since the busbar is arranged above the cell piece, the cell piece is prone to hidden cracking due to the pressing of the busbar during welding. SUMMARY

[0003] The utility model provides a prefabricated busbar arrangement equipment, solves the prior art existing problem.

[0004] In order to realize the above technical purpose, the following technical scheme is adopted in the present application.

[0005] A prefabricated busbar arrangement equipment, comprising a bearing conveying mechanism of a photovoltaic cell module, a prefabricated busbar welding device and a gantry conveying mechanism; wherein the bearing conveying mechanism conveys the photovoltaic cell module along the X direction; the prefabricated busbar welding device is arranged on one side of the bearing conveying mechanism to provide the prefabricated busbar; the gantry conveying mechanism comprises a prefabricated busbar grabbing module, the prefabricated busbar grabbing module is arranged above the bearing conveying mechanism, the prefabricated busbar grabbing module is fixed on a driving module, and the prefabricated busbar grabbing module is moved in the horizontal direction and the vertical direction through the driving module to convey the prefabricated busbar to the preset position of the photovoltaic cell module.

[0006] The prefabricated busbar arrangement equipment of some embodiments, the driving module of the gantry conveying mechanism comprises an X-axis driving module, a Y-axis driving module, a Z-axis driving module and an R-axis rotating module, the prefabricated busbar grabbing module is arranged at the moving end of the R-axis rotating module, the R-axis rotating module is arranged at the moving end of the Z-axis driving module, the Z-axis driving module is arranged at the moving end of the Y-axis driving module, and the Y-axis driving module is arranged at the moving end of the X-axis driving module, wherein the X-axis driving module is arranged on the X-direction support frame above the Y-direction both sides of the bearing conveying mechanism, and the Y-axis driving module is arranged on the Y-direction support frame fixed on the moving end of the X-axis driving module.

[0007] The pre-bussed ribbon arranging device of some embodiments, the pre-bussed ribbon grabbing module comprises a bussing ribbon sucking module, the bussing ribbon sucking module comprises downward sucking nozzles arranged at intervals along a first direction, and further comprises a solder ribbon clamping jaw module arranged at intervals with the bussing ribbon sucking module perpendicularly to the first direction, the solder ribbon clamping jaw module comprises a plurality of solder ribbon clamping jaws arranged at intervals along the first direction;

[0008] The solder ribbon clamping jaw module is one arranged at intervals on one side of the bussing ribbon sucking module, or two arranged at intervals on both sides of the bussing ribbon sucking module.

[0009] The pre-bussed ribbon arranging device of some embodiments, the bussing ribbon sucking module further comprises a plurality of spot pressing pieces arranged at intervals along the first direction, the spot pressing pieces and the sucking nozzles are arranged away from each other along the first direction, and the bussing ribbon sucking module is arranged on a lifting driving device and moves up and down under the driving of the lifting driving device.

[0010] The pre-bussed ribbon arranging device of some embodiments, the pre-bussed ribbon grabbing module further comprises a solder ribbon clamping module arranged at intervals with the solder ribbon clamping jaw module perpendicularly to the first direction, the solder ribbon clamping module comprises a plurality of clamps arranged at intervals along the first direction, and the clamps are arranged corresponding to each solder ribbon clamping jaw perpendicularly to the first direction;

[0011] The solder ribbon clamping module is two arranged at intervals on the same side of the solder ribbon clamping jaw module, or two arranged at intervals on both sides of the solder ribbon clamping jaw module.

[0012] The pre-bussed ribbon arranging device of some embodiments, the pre-bussed ribbon grabbing module further comprises a UV curing module arranged at intervals with the bussing ribbon sucking module perpendicularly to the first direction, the UV curing module comprises a UV curing lamp arranged along the first direction, and the UV curing module is arranged on the outermost side away from the bussing ribbon sucking module;

[0013] The UV curing module is one arranged on one side of the bussing ribbon sucking module, or two arranged on both sides of the bussing ribbon sucking module.

[0014] The pre-bussed ribbon arranging device of some embodiments further comprises an isolation belt providing device arranged on one side of the carrying conveying mechanism, which is used to release and cut the isolation belt arranged in a roll into an applicable length, and further comprises an isolation belt pulling module, which pulls the isolation belt of the isolation belt providing device to the applicable length along the Y direction, and continues to pull the cut isolation belt to the corresponding position of the photovoltaic cell module.

[0015] The pre-bussed ribbon arranging device of some embodiments, the isolation belt pulling module is arranged on the moving end of the Z-axis driving module.

[0016] The pre-bussed busbar arrangement device of some embodiments, the pre-bussed busbar welding device comprises an electromagnetic welding die set and a welding table die set arranged below the electromagnetic welding die set, the welding table die set comprises a rotary driving mechanism, and a welding table is uniformly arranged along the circumference of the rotary driving mechanism, the rotary driving mechanism drives the welding table to rotate and alternately moves to a welding station and a feeding and discharging station;

[0017] One or more welding areas are arranged on the welding table in parallel, the welding area is a long strip area, and a positioning member is further arranged on the welding table, a plurality of positioning members are parallel to the extension direction of the welding area, and adjacent positioning members are arranged in parallel to form a positioning member group.

[0018] The electromagnetic welding die set comprises a welding lifting part and an electromagnetic welding part, a welding head is arranged at the bottom of the electromagnetic welding part, and the welding head is used for electromagnetic welding, wherein the welding head is a long strip area that is adapted to the shape of the welding area.

[0019] The pre-bussed busbar arrangement device of some embodiments, the number of welding areas is three, two positioning member groups are arranged at the two ends of the welding area in the middle, and two positioning member groups are arranged at the sides of the welding areas on the two sides, away from the middle welding area.

[0020] The pre-bussed busbar arrangement device of some embodiments, the gantry conveying mechanism comprises three gantry conveying mechanisms arranged in the X direction, namely a first gantry conveying mechanism, a second gantry conveying mechanism and a third gantry conveying mechanism, and the three gantry conveying mechanisms are respectively used for conveying and arranging the pre-bussed busbars at the head, the middle and the tail of the photovoltaic cell assembly.

[0021] The technical scheme of the utility model has the following technical effects.

[0022] The pre-bussed busbar arrangement device of the application pre-busses the busbar and the solder strip to be welded together to form a pre-bussed busbar, arranges the pre-bussed busbar (including the busbar and the solder strip) on the corresponding position of the battery piece, and then performs laser welding or welding during the hot pressing process. The problems of virtual welding of the busbar and hidden cracking of the battery piece are avoided. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiments, and it should be understood that the following drawings only show some embodiments of the utility model, and therefore should not be regarded as a limitation to the scope. For ordinary skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0024] Figure 1 It is a top view schematic diagram of the pre-bussed busbar arrangement device of the utility model.

[0025] Figure 2 and Figure 3 are respectively schematic diagrams of two prefabricated bus bars of the utility model;

[0026] Figure 4 is a structural schematic diagram of a first gantry mechanism of the utility model;

[0027] Figure 5 is a structural schematic diagram of an isolation belt providing device of an embodiment of the utility model;

[0028] Figure 6 is a structural schematic diagram of a prefabricated bus bar grabbing module of an embodiment of the utility model;

[0029] Figure 7 is a structural schematic diagram of a bus bar welding device of an embodiment of the utility model;

[0030] Figure 8 is a top view schematic diagram of a welding platform of an embodiment of the utility model.

[0031] Icon: bearing conveying mechanism 5, prefabricated bus bar welding device 30, welding platform module 31, electromagnetic welding module 32, rotary driving mechanism 310, connecting plate 311, welding platform 312, welding area 3121, positioning piece 3122, welding lifting part 321, electromagnetic welding part 322, welding head 323, first gantry carrying mechanism 61, second gantry carrying mechanism 62, third gantry carrying mechanism 63, X-axis gear driving 611, Y-axis module driving 612, camera module 617, Z-axis module driving 613, R-axis rotary module 614, prefabricated bus bar grabbing module 615, isolation belt traction module 616, welding belt clamping jaw module 6151, welding belt clamping module 6152, bus bar suction module 6154, UV curing module 6153, spot ironing piece 6155 isolation belt providing mechanism 7, unwinding module 71, guide wheel 72, pressing module 73, cutting module 74, clamping module 75, bus bar 810, welding belt 820. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. The components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0033] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of the present application.

[0034] It should be noted that similar reference numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0035] In the description of the present application, it should be noted that, unless otherwise stated, if the terms "upper", "lower", "inner", "outer" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, or the orientation or position relationship when the product of the present application is used, it is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0036] In addition, unless otherwise stated, if the terms "first", "second" and the like appear, they are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0037] It should be noted that the features in the embodiments of the present application can be combined with each other without conflict.

[0038] In the production of photovoltaic cell modules, the cell pieces are connected by welding strips to lead out the current generated by the cell pieces. It is necessary to weld a plurality of welding strips with a bus bar, and the bus bar is used to collect and transmit the current generated by the photovoltaic cell module. In the prior art, when the bus bar and the welding strip are welded, the contact between the bus bar and the welding strip during welding is not sufficient, resulting in frequent false welding, which affects the final product quality of the photovoltaic cell module. At the same time, for the photovoltaic cell module with hidden bus bars, since the bus bar is arranged above the cell piece, the cell piece is prone to hidden cracking due to the pressing of the bus bar during welding.

[0039] Therefore, the present application provides a prefabricated bus bar arrangement device, which prefabricates the bus bar and the welding strip to be welded therewith to form a prefabricated bus bar, and then arranges the prefabricated bus bar (including the bus bar and the welding strip) on the corresponding position of the cell piece, and then performs laser welding or completes welding during hot pressing. The false welding of the bus bar and the hidden cracking of the cell piece are avoided.

[0040] The present application provides a prefabricated bus bar arrangement device, which is described as follows: Figure 1As a top view structural schematic diagram of a prefabricated busbar arrangement device of the application, the prefabricated busbar arrangement device comprises a bearing conveying mechanism 5 of a photovoltaic cell assembly, which realizes the conveying, supporting and positioning of the photovoltaic cell assembly, and can be a belt conveying mechanism or a roller conveying mechanism, etc. A prefabricated busbar welding device 30 is used to provide a welded prefabricated busbar. A gantry conveying mechanism is arranged above the bearing conveying mechanism 5 and is used to convey the prefabricated busbar provided by the prefabricated busbar welding device 30 to a preset position of the photovoltaic cell assembly, so as to realize the arrangement of the prefabricated busbar. When it is necessary to arrange an isolation band, the gantry conveying mechanism is also used to arrange the isolation band to the preset position of the photovoltaic cell assembly. For the convenience of description, the conveying direction of the bearing conveying mechanism 5 is described as the X direction.

[0041] In the utility model, the photovoltaic cell assembly refers to a back plate (for example, photovoltaic glass and heat sealing materials such as EVA or POE, etc. are sequentially arranged from bottom to top), solar cell pieces arranged on the back plate according to the photovoltaic cell assembly version and welding bands arranged on the cell pieces according to the photovoltaic cell assembly version. Among them, the welding band here preferably does not include the welding band to be welded with the busbar. The welding band to be welded with the busbar is welded together with the busbar according to the assembly version by using the prefabricated busbar welding device, is conveyed to the corresponding position of the photovoltaic cell assembly by the gantry conveying mechanism. Then, the whole is welded, for example, laser welding or welding is completed in the process of hot pressure packaging.

[0042] As an implementable mode, the gantry conveying mechanism comprises three, which are a first gantry conveying mechanism 61, a second gantry conveying mechanism 62 and a third gantry conveying mechanism 63, respectively, and are used to convey and arrange the prefabricated busbars at the head, middle and tail of the photovoltaic cell assembly.

[0043] Referring to Figure 2 and Figure 3 As two prefabricated busbar schematic diagrams of the utility model, the prefabricated busbar comprises a busbar 810 and a welding band 820 vertically arranged with the busbar 810 and arranged at intervals along the length direction of the busbar, and the positions where the two are in contact are welded to form the prefabricated busbar. Among them, Figure 2 The busbar is arranged in the middle of the photovoltaic cell assembly, and the two ends of the welding band are extended out of the busbar and connected with two adjacent groups of cell pieces in the middle of the photovoltaic cell assembly, which is called the middle prefabricated busbar hereinafter. Figure 3 The busbar is arranged at the two ends of the photovoltaic cell assembly, and one end of the welding band is extended out of the busbar and used to connect one group of cell pieces at the head and tail of the photovoltaic cell assembly, which is called the end prefabricated busbar hereinafter.

[0044] The gantry conveying mechanism comprises a prefabricated busbar grabbing module and a driving module, the prefabricated busbar grabbing module is arranged on the driving module, the driving module has X, Y and Z moving degrees of freedom and R rotating degree of freedom, and drives the busbar grabbing module to convey the prefabricated busbar to a preset position. Figure 4 FIG. 6 is a structural schematic diagram of the gantry conveying mechanism.

[0045] The driving module of the gantry conveying mechanism comprises an X-axis driving module 611, a Y-axis driving module 612, a Z-axis driving module 613 and an R-axis rotating module 614. The prefabricated busbar grabbing module 615 is arranged on the moving end of the R-axis rotating module 614, the R-axis rotating module 614 is arranged on the moving end of the Z-axis driving module 613, the Z-axis driving module 613 is arranged on the moving end of the Y-axis driving module 612, and the Y-axis driving module 612 is arranged on the moving end of the X-axis driving module 611.

[0046] The X-axis driving module 611 is arranged on an X-direction support frame above the Y-direction two sides of the bearing conveying mechanism 5. Specifically, the X-axis driving module 611 can be a gear and rack driving module, or a ball screw driving module or any other module that can realize linear driving. In this embodiment, the X-axis driving module 611 is a gear and rack driving module. The Y-axis support frame is fixed on the moving end of the X-axis driving module 611, specifically, on the gear driving. The Y-axis driving module 612 is a ball screw driving module or any other module that can realize linear driving, and is arranged on the Y-axis support frame. The Z-axis driving module 613 is a ball screw driving module or any other module that can realize linear driving, and is fixed on the moving end of the Y-axis driving module 612. The R-axis rotating module 614 is a hollow rotating platform or any other module that can realize precise rotating driving, such as a DD motor, and is arranged on the moving end of the Z-axis driving module 613. The R-axis rotating module 614 drives the prefabricated busbar grabbing module 615 to rotate, and the prefabricated busbar grabbing module 615 is driven by the Z-axis driving module 613 to move up and down, is driven by the Y-axis driving module 612 to move in the Y direction, and is driven by the X-axis driving module 611 to move in the X direction.

[0047] In this way, the prefabricated busbar grabbing module can move in the XYR direction (move and rotate in the horizontal plane), move up and down in the Z direction (vertically), and rotate in the R-axis in the horizontal plane. Therefore, the prefabricated busbar grabbing module can be moved to the prefabricated busbar welding device, clamp the prefabricated busbar, moved to the corresponding position in front of the assembly, use the camera module to take a picture of the battery piece for positioning, then correct the deviation (move in the XYR direction), and then place the battery piece in the corresponding position. The adverse effects caused by the arrangement accuracy of the prefabricated busbar can be avoided.

[0048] In some embodiments, before arranging the prefabricated busbar on the photovoltaic cell assembly, an isolation tape is placed at the position where the busbar is to be placed to avoid the prefabricated busbar from being overlapped on the grid line after welding. The prefabricated busbar arranging device of the present application further comprises an isolation tape providing device for providing the isolation tape.

[0049] Referring to Figure 5 , the structure diagram of the isolation tape providing device of the present application is shown in FIG. 6. The isolation tape providing device is arranged on one side of the carrying conveying mechanism 5, and comprises a unwinding module 71, a guide wheel 72, a pressing module 73, a cutting module 74 and a clamping module 75. The isolation tape is mounted on the unwinding module 71 in a roll shape, is rectified by the guide wheel 72, and is pressed into the guide groove by the pressing cylinder of the pressing module 73 and leaks the head of the isolation tape. The pressing module, the cutting module and the clamping module can all adopt the prior art. For example, the pressing module can be a pressing block driven by a cylinder to lift, the cutting module can be a cutting knife, and the clamping module can be a clamping jaw, etc.

[0050] The isolation tape providing device further comprises an isolation tape pulling module for pulling the head of the isolation tape from the busbar providing device to a suitable length along the Y direction, the clamping module and the pressing module simultaneously press the isolation tape, the isolation tape is cut by the cutting module, and is continuously pulled to the corresponding position of the photovoltaic cell assembly. The unwinding module and the isolation tape pulling module simultaneously descend to arrange the isolation tape on the photovoltaic cell assembly, and the arrangement of the isolation tape is completed. In the embodiment, the isolation tape providing device also comprises three, which are respectively located at the front end, the middle and the tail end of the photovoltaic cell assembly, and correspondingly, are arranged at the front end, the middle and the rear end of the carrying conveying mechanism 5 on one side.

[0051] In order to simplify the device, the gantry carrying mechanism is used to pull and place the isolation tape. Specifically, referring to Figure 4 , the gantry carrying mechanism is further provided with an isolation tape pulling module 616, which comprises a clamping jaw and is arranged on the Z-axis module drive 613. In this way, the pulling of the isolation tape is realized by the Y-axis module drive 612, and the lifting is realized by the Z-axis module drive 613. The clamping jaw can adopt the clamping jaw of the prior art.

[0052] In order to simplify the device, the camera module is also arranged on the gantry carrying mechanism. Specifically, referring to Figure 4 , the camera module 617 is arranged at the moving end of the Z-axis drive module of the drive module, and the cell is photographed and positioned.

[0053] Referring to Figure 6 , Figure 6Fig. 6 is a structural schematic diagram of the prefabricated busbar grabbing module of the first and third gantry mechanisms. The prefabricated busbar grabbing module 615 includes a busbar suction module 6154, which includes downward suction nozzles arranged at intervals in the first direction to suck the busbar positions of the prefabricated busbar. Preferably, the busbar suction module 6154 also includes a plurality of spot ironing pieces 6155 arranged at intervals in the first direction. The spot ironing pieces 6155 and the suction nozzles can be arranged at intervals in the first direction, for example, one suction nozzle and one spot ironing piece 6155 can be arranged alternately, or a plurality of suction nozzles and one spot ironing piece 6155 can be arranged alternately, etc. The spot ironing piece is a prior art and can be heated. It also includes a solder strip clamping jaw module 6151 arranged at intervals in the first direction and perpendicular to the busbar suction module 6154, wherein the solder strip clamping jaw module 6151 includes a plurality of solder strip clamping jaws arranged at intervals in the first direction, each solder strip clamping jaw being used to clamp a solder strip of the prefabricated busbar. In the present embodiment, the solder strip clamping jaw is a flat clamp. It also includes a solder strip clamping module 6152 arranged at intervals in the first direction and perpendicular to the solder strip clamping jaw module 6151, wherein the solder strip clamping module includes a plurality of clamps arranged at intervals in the first direction. In the present embodiment, the clamps are two clamp columns arranged at intervals in the first direction. The clamps are arranged corresponding to each solder strip clamping jaw in the direction perpendicular to the first direction, and the solder strip is clamped therein to achieve positioning of the solder strip. Preferably, the solder strip clamping module 6152 includes two modules arranged on both sides of the solder strip clamping jaw module 6151. Preferably, it also includes a UV curing module 6153, which includes a UV curing lamp arranged in the first direction. The UV curing module 6153 is also arranged at intervals in the direction perpendicular to the first direction and the busbar suction module. More specifically, the UV curing module 6153 is arranged on the outermost side away from the busbar suction module 6154. Preferably, the UV curing module and the busbar suction module are fixed by a lifting driving mechanism, so as to drive them to lift. As can be understood by those skilled in the art, the extension direction of the busbar of the prefabricated busbar corresponds to the first direction. In this way, the busbar suction module 6154 and the solder strip clamping jaw module 6151 can be used to grab the entire prefabricated busbar. The solder strip clamping jaw module and the solder strip clamping module can be referred to CN222214159U, etc.

[0054] The welding strip clamping jaw module of the prefabricated busbar grabbing module and the busbar suction module respectively clamp the welding strip of the prefabricated busbar and the busbar of the prefabricated busbar, and move them to the strip arrangement position of the photovoltaic cell assembly. The busbar suction module is lowered under the driving of the lifting module (preferably a pneumatic cylinder) to press the busbar onto the cell corresponding to the position of the photovoltaic cell assembly. The hot pressing piece generates heat at the same time to melt the isolation strip. Then, the welding strip clamping jaw of the welding strip clamping jaw module is opened to release the welding strip onto the cell. In the process of releasing, the clamping jaw of the welding strip clamping jaw module positions the welding strip to avoid deviation. Finally, the UV curing module is lowered under the driving of the lifting mechanism (preferably a pneumatic cylinder) to press the welding strip onto the UV glue point on the cell. The UV lamp is turned on to irradiate the glue point and fix the welding strip. After completion, the prefabricated busbar grabbing module is lifted, the UV lamp is turned off, and the isolation strip is gradually cooled to fix the busbar on the cell. Those skilled in the art can understand that the isolation strip is a heat-resistant material on both sides, which can be fixed by melting and cooling after heating.

[0055] It can be understood that the third gantry conveying mechanism and the first gantry conveying mechanism are used to arrange the end prefabricated busbar of the head and tail of the photovoltaic assembly, which corresponds to the prefabricated busbar of Figure 3 , so the prefabricated busbar grabbing module of the third gantry structure and the prefabricated busbar grabbing module of the first gantry mechanism are the same. The second gantry conveying mechanism is used to arrange the middle prefabricated busbar of the center of the photovoltaic assembly, which corresponds to the prefabricated busbar of Figure 2 , and the prefabricated busbar grabbing module of the second gantry conveying structure and the prefabricated busbar grabbing module of the first gantry conveying mechanism are different in that the welding strip clamping jaw module, the welding strip clamping jaw module, and the UV curing module are symmetrically distributed on the other side of the busbar suction module.

[0056] Referring to Figure 7 and Figure 8 , wherein, Figure 7 is a schematic view of the structure of the busbar welding device, Figure 8 is a top view of the welding platform of an embodiment. The prefabricated busbar welding device 30 includes a welding platform module 31 and an electromagnetic welding module 32 arranged above the welding platform module 31.

[0057] Continuing to refer to Figure 7The welding station module 31 comprises a rotating driving mechanism 310, and a welding station 312. Preferably, the welding station 312 comprises two welding stations 312 which are circumferentially and uniformly arranged on the rotating driving mechanism 310. The rotating driving mechanism 310 drives the two welding stations 312 to alternately rotate to the welding station and the feeding station. When one of the welding stations 312 is performing welding, the other welding station 312 is performing feeding, i.e. the prefabricated busbar is carried to the predetermined position of the photovoltaic cell assembly by the gantry carrying mechanism. Optionally, the rotating driving mechanism 310 can be a motor. The driving end of the motor is arranged upwardly. A connecting plate 311 is fixed at the center of the driving end of the motor. The two welding stations 312 are arranged at the two ends of the connecting plate 311, respectively.

[0058] Referring to Figure 7 and Figure 8 , the welding station 312 is provided with a welding area 3121 which is suitable for welding the busbar. The welding area 3121 is a long strip area. The busbar is arranged along the length direction of the welding area 3121. The soldering strip is arranged perpendicularly to the length direction of the busbar. In order to improve the positioning accuracy of the soldering strip, the welding station is further provided with a positioning member 3122. In this embodiment, the positioning member 3122 is two positioning columns which are arranged at intervals along the length direction of the busbar. The non-welding part of the soldering strip is arranged between the two positioning columns to achieve positioning. More specifically, the distance between the two positioning columns is slightly greater than the width of the soldering strip. Specifically, a plurality of positioning members 3122 are parallel to the extension direction of the welding area 3121. Adjacent positioning members 3122 are arranged at intervals to form a positioning member group. At least one positioning member group is arranged on one side or both sides of the welding area 3121.

[0059] Referring to Figure 8 , as a preferred technical solution, a plurality of welding areas 3121 are arranged in parallel on the welding station. Preferably, as shown in Figure 8 , three welding areas 3121 are arranged. Among them, the middle welding area is used for welding the middle prefabricated busbar. The two side welding areas are used for welding the end prefabricated busbar. More specifically, two positioning member groups are arranged on both sides of the middle welding area 3121. Two positioning member groups are arranged on the side away from the middle welding area of the welding area 3121 at both ends. In this way, the welding of three groups of prefabricated busbars can be realized. Adjacent two positioning member groups are arranged at intervals in the direction perpendicular to the extension direction of the welding area 3121, so as to achieve better positioning of the soldering strip.

[0060] Among them, the welding area 3121 is made of a high-temperature-resistant material which cannot be magnetized. For example, the welding area is made of ceramic material.

[0061] The three welding areas are arranged respectively for preparing two groups of end prefabricated bus bars and one group of middle prefabricated bus bars, and can be carried by the first gantry carrying mechanism 61, the second gantry carrying mechanism 62 and the third gantry carrying mechanism 63, the welding table module 31 is provided with two welding tables 312, the welding position and the carrying position are switched by the rotary driving mechanism 310, the welding and the carrying are carried out simultaneously, and the three carriings can also be carried out simultaneously, so that time is saved.

[0062] Continuing to refer to Figure 7 The electromagnetic welding module 32 comprises a welding lifting part 321 and an electromagnetic welding part 322, the bottom of the electromagnetic welding part is provided with a welding head 323 for electromagnetic welding. The welding head 323 is also long strip-shaped to adapt to the shape of the bus bar. After the bus bar and the solder strip are placed on the welding table module 31, the electromagnetic welding part 322 presses the welding head on the welding area 3121 through the welding lifting part 321 to carry out welding. The number of welding heads can be set according to the number and length of the welding areas. The welding lifting part can be a linear motor or the like, and the electromagnetic welding part is a prior art, which will not be described here.

[0063] The above is an embodiment of the utility model, of course, the gantry carrying mechanism can also be one, and all the prefabricated bus bars are carried, when the version of the photovoltaic cell assembly is different, other numbers can also be set according to the demand of the prefabricated bus bar, and the number of the welding areas of the welding table can also be one, and all the prefabricated bus bars are welded, when the version of the photovoltaic cell assembly is different, other numbers can also be set according to the demand of the prefabricated bus bar.

[0064] It is only a specific embodiment of the utility model, but the protection scope of the utility model is not limited to this, any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model. Therefore, the protection scope of the utility model should be subject to the protection scope of the claims.

Claims

1. A preformed busbar arrangement apparatus, characterized by: The application relates to a carrying conveying mechanism, a prefabricated busbar welding device and a gantry carrying mechanism comprising photovoltaic cell components. The carrying conveying mechanism conveys the photovoltaic cell components along an X direction. The prefabricated busbar welding device is arranged on one side of the carrying conveying mechanism to provide the prefabricated busbar. The gantry carrying mechanism comprises a prefabricated busbar grabbing module, the prefabricated busbar grabbing module is arranged above the carrying conveying mechanism, the prefabricated busbar grabbing module is fixed on a driving module, and the prefabricated busbar grabbing module is moved in a horizontal direction and a vertical direction through the driving module to carry the prefabricated busbar to a preset position of the photovoltaic cell components.

2. The pre-bussed tape arrangement apparatus of claim 1, wherein: The driving module of the gantry carrying mechanism comprises an X-axis driving module, a Y-axis driving module, a Z-axis driving module and an R-axis rotating module, the prefabricated busbar grabbing module is arranged at a moving end of the R-axis rotating module, the R-axis rotating module is arranged at a moving end of the Z-axis driving module, the Z-axis driving module is arranged at a moving end of the Y-axis driving module, and the Y-axis driving module is arranged at a moving end of the X-axis driving module.

3. The pre-bussed tape arrangement apparatus of claim 1, wherein: The prefabricated busbar grabbing module comprises a busbar suction module, the busbar suction module comprises downward suction nozzles arranged at intervals along a first direction, and further comprises a busbar clamping jaw module arranged at intervals and perpendicularly to the first direction and the busbar suction module, the busbar clamping jaw module comprises a plurality of busbar clamping jaws arranged at intervals along the first direction. The busbar clamping jaw module is one arranged at intervals on one side of the busbar suction module or two arranged at intervals on two sides of the busbar suction module.

4. The pre-bussed tape arrangement apparatus of claim 3, wherein: The busbar suction module further comprises a plurality of spot ironing pieces arranged at intervals along the first direction, the spot ironing pieces and the suction nozzles are arranged away from each other along the first direction, and the busbar suction module is arranged on a lifting driving device and moves up and down under the driving of the lifting driving device.

5. The pre-bussed tape arrangement apparatus of claim 3, wherein: The prefabricated busbar grabbing module further comprises a busbar clamping module arranged at intervals and perpendicularly to the first direction and the busbar clamping jaw module, the busbar clamping module comprises a plurality of clamps arranged at intervals along the first direction, and the clamps are arranged corresponding to each busbar clamping jaw perpendicularly to the first direction. The busbar clamping module is two arranged at intervals on the same side of the busbar clamping jaw module or two arranged at intervals on two sides of the busbar clamping jaw module.

6. The pre-bussed tape arrangement apparatus of claim 3, wherein: The prefabricated busbar grabbing module further comprises a UV curing module arranged at intervals and perpendicularly to the first direction and the busbar suction module, the UV curing module comprises a UV curing lamp arranged along the first direction, and the UV curing module is arranged on the outermost side away from the busbar suction module. The UV curing module is one arranged on one side of the busbar suction module or two arranged on two sides of the busbar suction module.

7. The pre-bussed tape arrangement apparatus of claim 2, wherein: The isolation belt providing device is arranged on one side of the carrying conveying mechanism to release and cut the isolation belt arranged in a roll into a suitable length, and the isolation belt traction module is arranged to traction the isolation belt of the isolation belt providing device along the Y direction to a suitable length and continue to traction the cut isolation belt to a corresponding position of the photovoltaic cell assembly.

8. The pre-bussed tape arrangement apparatus of claim 7, wherein: The isolation belt traction module is arranged at the moving end of the Z-axis driving module.

9. The pre-bussed tape arrangement apparatus of claim 1, wherein: The prefabricated busbar welding device comprises an electromagnetic welding module and a welding table module arranged below the electromagnetic welding module, the welding table module comprises a rotary driving mechanism and a welding table uniformly arranged along the circumference of the rotary driving mechanism, and the rotary driving mechanism drives the welding table to rotate alternately to a welding station and a feeding and discharging station. One or more welding areas are arranged on the welding table in parallel, the welding area is a long strip area, and a positioning member is arranged on the welding table, a plurality of positioning members are parallel to the extension direction of the welding area, and adjacent positioning members are arranged in parallel to form a positioning member group. The electromagnetic welding module comprises a welding lifting part and an electromagnetic welding part, a welding head is arranged at the bottom of the electromagnetic welding part to perform electromagnetic welding, and the welding head is a long strip area suitable for the shape of the welding area.

10. The pre-bussed tape arrangement apparatus of claim 9, wherein: The number of welding areas is three, two positioning member groups are arranged on both sides of the middle welding area, and two positioning member groups are arranged on the side away from the middle welding area of the welding area on both sides.

11. The preformed busbar arrangement apparatus according to any one of claims 1 to 10, wherein: The gantry carrying mechanism comprises three gantry carrying mechanisms arranged in the X direction, namely a first gantry carrying mechanism, a second gantry carrying mechanism and a third gantry carrying mechanism, which are respectively used to carry and arrange the prefabricated busbars at the head, middle and tail of the photovoltaic cell assembly.

Citation Information

Patent Citations

  • Solder strip arranging and clamping device

    CN222214159U