CN218109710U - Welding system - Google Patents

Abstract

The utility model discloses a welding system, which is used for welding a junction box and a bus bar, wherein the junction box comprises at least one conducting strip, the junction box is fixedly arranged on a photovoltaic assembly, the first end of the bus bar is connected on the photovoltaic assembly, and the second end of the bus bar passes through the junction box; the welding system comprises a conveying device, a welding device and a transferring device; the conveying device comprises a first conveying mechanism, the first conveying mechanism is arranged in the front of the welding device and is used for conveying and regulating the photovoltaic assembly; welding set is including the processing mechanism that shoots, pressing and holding mechanism and laser welding mechanism, moves and carries the portable setting of device between first conveying mechanism and welding set for transfer the photovoltaic module after first conveying mechanism is regular to welding set's welding station department. Laser welding is carried out to the photovoltaic module who gets into the welding station through laser welding mechanism, reduces welding cost, and sets up the processing mechanism of shooing and press and hold the mechanism and can improve welding precision and effect.

Description

Welding system

Technical Field

The utility model belongs to the technical field of the photovoltaic is made, especially, relate to a welding system.

Background

When welding busbar and terminal box, adopt at present more to utilize hot-pressing welding, but this kind of welding mode needs cooperation consumptive material tin to weld, can increase welding cost.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem in the prior art, the application provides a welding system, adopts laser to weld busbar and terminal box, need not to use consumptive material tin, effectively reduces welding cost. The technical scheme is as follows:

a welding system is used for welding a junction box and a bus bar, wherein the junction box comprises at least one conducting strip, the junction box is fixedly arranged on a photovoltaic module, a first end of the bus bar is connected to the photovoltaic module, and a second end of the bus bar penetrates through the junction box; the welding system comprises a conveying device, a welding device and a transferring device;

the conveying device comprises a first conveying mechanism, the first conveying mechanism is arranged in the front of the welding device and is used for conveying and regulating the photovoltaic assembly;

the welding device comprises a photographing processing mechanism, a pressing and holding mechanism and a laser welding mechanism, wherein the photographing processing mechanism is positioned above the pressing and holding mechanism and the laser welding mechanism and is used for photographing a junction box on a photovoltaic assembly positioned at a welding station; the pressing mechanism is positioned above the welding station and used for pressing the second end of the bus bar so as to enable the second end of the bus bar to be in contact with the conducting plate; the laser welding mechanism is positioned above the welding station and used for carrying out laser welding on the second end of the bus bar and the conducting strip;

the transfer device is movably arranged between the first conveying mechanism and the welding device and used for transferring the photovoltaic modules which are regulated by the first conveying mechanism to the welding station of the welding device.

Adopt laser to weld terminal box and busbar, to the required precision of welding position than higher, before photovoltaic module gets into the welding station, regular photovoltaic module in advance, compare in carrying photovoltaic module to the welding station and regular again, can save photovoltaic module greatly in regular consuming time of welding station, improve welding beat and welding precision.

In addition, adopt laser to weld terminal box and busbar, saved a large amount of consumptive material tin, can reduce welding cost, and set up the processing mechanism of shooing and press and hold the mechanism and can improve welding precision and effect.

Optionally, the first conveying mechanism includes a conveying assembly and a regulating assembly, and the regulating assembly is arranged at an output end of the conveying assembly and used for regulating the photovoltaic assembly before the transferring device transfers the photovoltaic assembly to the welding station;

regular subassembly includes first regular portion and second regular portion, and first regular portion and second regular portion are located the both sides of conveying assembly's output respectively, and first regular portion and/or second regular portion are configured to move towards conveying assembly to photovoltaic module on the conveying assembly is regular.

The photovoltaic component is designed to comprise a first regulation part and a second regulation part, and the photovoltaic component is regulated from two sides of the conveying component by utilizing the two regulation parts, so that the photovoltaic component can be regulated better; with the regular portion setting of first regular portion and second at conveyor components's output, carry on regularly in the one side of being closer to the device of carrying on, can further reduce the photovoltaic module because conveyor components's transport and the positional deviation who takes place, guarantee that regular photovoltaic module directly is carried the device and is transferred to the welding station under the unchangeable condition of position precision, and then guarantee the welding precision.

Optionally, the first conveying mechanism further comprises a first limiting assembly and a second limiting assembly, the first limiting assembly is located at the output end of the conveying assembly, the second limiting assembly is located at the input end of the conveying assembly, and the first limiting assembly and the second limiting assembly are used for limiting the two ends of the photovoltaic assembly along the conveying direction before the photovoltaic assembly is regulated by the regulating assembly.

Carry on spacingly to photovoltaic module along direction of delivery's both ends through first spacing subassembly and second spacing subassembly, with photovoltaic module spacing between two spacing subassemblies of transport assembly, carry out the ascending position of direction of delivery to photovoltaic module and prescribe a limit to, guarantee to move at every turn when carrying the device and move and carry photovoltaic module, photovoltaic module all is in a fixed assigned position, can improve and move the precision of moving of carrying the device, and then improve welding precision.

Optionally, the first limiting assembly is a limiting column higher than the conveying plane of the conveying assembly, or a first limiting assembly capable of lifting and descending perpendicular to the conveying plane of the conveying assembly;

the second limiting component is a second limiting component which can be lifted and descended perpendicular to the conveying plane of the conveying component, or a third limiting component which can be overturned relative to the conveying plane of the conveying component.

Set up first spacing subassembly for fixed spacing or go up and down spacing, can block spacingly to one side of photovoltaic module, it is spacing or upset spacing that the spacing subassembly of rethread second goes up and down, can be spacing to the opposite side of photovoltaic module.

Optionally, when the first limiting assembly is a first limiting assembly which can be lifted and lowered perpendicular to the conveying plane of the conveying assembly, a sensing device is arranged at the front end of the first limiting assembly and used for sensing whether the photovoltaic assembly conveyed by the conveying assembly reaches the front end of the first limiting assembly.

Set up sensing device and can detect whether photovoltaic module reaches and set for limit position to start first limit component and rise and block, carry out spacing the blocking to the photovoltaic module that carries by transport assembly in time, avoid photovoltaic module's transport transition.

Optionally, the welding device further comprises a supporting mechanism, and the supporting mechanism is arranged at the welding station and used for bearing the photovoltaic module;

the transferring device transfers the photovoltaic assembly which is structured by the first conveying mechanism to the supporting mechanism.

Set up supporting mechanism in welding station department, support photovoltaic module, for the welding of terminal box and busbar provides steady welded platform, guarantee welding precision.

Optionally, the transfer device comprises a supporting plate, a first driving mechanism and a second driving mechanism, wherein the first driving mechanism is used for driving the supporting plate to reciprocate between the first conveying mechanism and the supporting mechanism;

when the first driving mechanism drives the supporting plate to move below the first conveying mechanism, the second driving mechanism is used for driving the supporting plate to ascend relative to the conveying plane of the first conveying mechanism so as to lift the photovoltaic module on the first conveying mechanism away from the conveying plane;

when the first driving mechanism drives the supporting plate to move above the supporting mechanism, the second driving mechanism is used for driving the supporting plate to descend relative to the supporting plane of the supporting mechanism so as to release the photovoltaic assembly on the supporting plate onto the supporting plane.

Through first actuating mechanism drive layer board reciprocating motion between first conveying mechanism and supporting mechanism, drive the photovoltaic module reciprocating motion between first conveying mechanism and supporting mechanism on the layer board, combine the second actuating mechanism to drive and realize the transition transport of photovoltaic module between first conveying mechanism and supporting mechanism, compare in using the conveyer belt to carry the transition transport and adopt the layer board to carry out the transition transport to photovoltaic module through the mode that the sideslip goes up and down, can not destroy by regular good photovoltaic module's in advance position state, the assurance that can be better moves the position state of photovoltaic module around carrying.

Optionally, the welding system further includes a second conveying mechanism, which is arranged at a subsequent stage of the welding device and is used for conveying the photovoltaic module welded by the welding device or the photovoltaic module not welded by the welding device to a subsequent station;

the transferring device transfers the photovoltaic module on the supporting mechanism to the second conveying mechanism.

Set up second conveying mechanism, will weld the back or because of some reasons unfinished the timely transportation of welded photovoltaic module to next process, improved the operating efficiency of equipment, can effectively avoid photovoltaic module's backlog, make the welding system of this application can adapt to different application scenes. The photovoltaic module on the supporting mechanism is transferred to the second conveying mechanism by the transfer device, so that the output of the photovoltaic module is completed, and the structure is compact and reliable.

Optionally, the pressing mechanism includes at least one pressing component, the pressing component can move towards or away from the junction box along the vertical direction, the pressing component includes at least one pressing head, an avoiding groove is formed in the pressing head, the pressing head presses and holds the second end of the bus bar on the conducting strip, and a laser beam of the laser welding mechanism penetrates through the avoiding groove and hits on the second end of the bus bar to complete welding of the second end of the bus bar and the conducting strip.

The setting is pressed and is held the subassembly and can be pressed the busbar and hold on the conducting strip, makes it carry out laser welding under the state of inseparable laminating, has guaranteed the welding effect, sets up on the pressure head and dodges the groove for on the unobstructed arrival busbar of laser beam, further improved the welding effect.

Optionally, the pressing and holding assembly further comprises a buffer part, and the buffer part is arranged above the pressing and holding head and used for buffering the pressing and holding force of the pressing and holding head.

The buffering part can provide buffering when the pressing component presses and holds the bus bar, and the bus bar or the junction box is prevented from being damaged due to excessive extrusion.

Optionally, the laser welding mechanism includes a laser configured to be movable in a conveying direction perpendicular to the first conveying mechanism and in parallel with the first conveying mechanism;

the pressing and holding assembly is configured to be movable along a conveying direction perpendicular to the first conveying mechanism; and/or the pressing and holding assembly is configured to be movable along a conveying direction parallel to the first conveying mechanism.

The laser can move along the vertical and parallel conveying directions of the first conveying mechanism, so that the situation that the junction box is at different welding positions can be compatible.

Optionally, the laser welding mechanism comprises a laser configured to be movable in a conveying direction perpendicular to the conveying direction of the first conveying mechanism, parallel to the conveying direction of the first conveying mechanism;

when the number of the pressing and holding assemblies is at least two, the at least two pressing and holding assemblies are configured to be independently movable along the conveying direction perpendicular to the first conveying mechanism; and/or at least two pressing components are configured to be independently movable along the conveying direction parallel to the first conveying mechanism.

When at least two pressing components are arranged, each pressing component is configured to be independently movable along the conveying direction perpendicular to the first conveying mechanism; and/or configured to be independently movable in a conveying direction parallel to the first conveying mechanism. By configuring each pressing component to be capable of being independently adjusted along different directions, junction boxes in different positions and models can be compatible.

Optionally, the laser is configured to be movable in a vertical direction towards or away from the junction box; the laser welding mechanism further comprises a distance measuring sensor, wherein the distance measuring sensor is arranged on one side of the laser and used for detecting the vertical distance between the laser and the junction box.

Set up range finding sensor through one side at the laser instrument, can detect the distance of laser instrument to below terminal box, through judging whether this distance is fit for laser welding, the cooperation carries out corresponding vertical removal to the laser instrument to the position height of more accurate adjustment laser light-emitting matches different terminal boxes.

Optionally, the photographing processing mechanism includes at least one camera configured to be movable in a direction perpendicular to the conveying direction of the first conveying mechanism and in parallel to the conveying direction of the first conveying mechanism.

The camera is arranged to be movable along the conveying direction perpendicular to the first conveying mechanism and parallel to the conveying direction of the first conveying mechanism, and the photovoltaic module can be compatible with different types of photovoltaic modules, namely the situation that the junction boxes are different in position on the photovoltaic modules.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a side structural view of the first conveying mechanism of the present invention;

fig. 3 is a schematic structural view of the transfer device of the present invention;

fig. 4 is a schematic structural view of the pressing mechanism of the present invention;

fig. 5 is a schematic structural view of the photographing processing mechanism of the present invention;

fig. 6 is a schematic view of the installation positions of the first and second regulating portions of the present invention;

FIG. 7 is a schematic structural view of a welded junction box according to the present invention;

fig. 8 is a schematic structural view of the avoidance groove of the present invention;

fig. 1 to 8 include: 1. a conveying device; 11. a first conveying mechanism; 12. a second conveying mechanism; 13. a delivery assembly; 131. a first limit component; 132. a second limiting component; 141. a first regulating section; 142. a second regulating section; 21. a photographing processing mechanism; 211. a camera; 22. a pressing mechanism; 221. a pressing component; 222. pressing and holding the head; 223. an avoidance groove; 224. a buffer section; 23. a laser welding mechanism; 231. a laser; 24. a support mechanism; 3. a transfer device; 31. a pallet; 32. a first drive mechanism; 33. a second drive mechanism; 41. a junction box; 42. a bus bar; 43. a conductive sheet; 44. provided is a photovoltaic module.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the invention, as detailed in the appended claims.

As shown in fig. 7:

the junction box 41 comprises at least one conducting strip 43, the junction box 41 is fixedly arranged on the photovoltaic module 44, a first end of the bus bar 42 is connected to the photovoltaic module 44, and a second end of the bus bar 42 penetrates through the junction box 41.

As shown in fig. 1, the welding system is used for welding a junction box 41 and a bus bar 42, and includes a conveying device 1, a welding device, and a transfer device 3.

The conveying device 1 comprises a first conveying mechanism 11, and the first conveying mechanism 11 is arranged in front of the welding device and used for conveying and regulating the photovoltaic module 44.

Before photovoltaic module 44 gets into the welding station, regulate photovoltaic module 44 in advance, compare and carry photovoltaic module 44 to the welding station and regulate again, can save photovoltaic module 44 greatly and regularly consume time at the welding station, improve welding beat and welding precision.

The welding device comprises a photographing processing mechanism 21, a pressing mechanism 22 and a laser welding mechanism 23, wherein the photographing processing mechanism 21 is located above the pressing mechanism 22 and the laser welding mechanism 23 and is used for photographing a junction box 41 on a photovoltaic module 44 located at a welding station.

The photographing processing mechanism 21 can photograph and position the junction box 41 on the photovoltaic module to obtain the specific position of the junction box 41, and can judge whether the currently photographed junction box has a defect or not according to the photographed image and judge whether the current junction box can be subjected to laser welding or not. Defects possibly existing in the junction box include that whether glue overflows exist in the junction box, whether a conducting strip of the junction box is normal, whether the connection between the junction box and the photovoltaic module is too loose and the like, and the defects can be visually observed through naked eyes (namely, pictures are shot).

Further, by disposing the imaging processing means 21 above the pressing means 22 and the laser welding means 23, it is possible to avoid the imaging processing means 21 from interfering with the pressing means 22 and the laser welding means 23.

The pressing mechanism 22 is located above the welding station and is used for pressing the second end of the bus bar 42, so that the second end of the bus bar 42 is in contact with the conductive sheet 43.

The laser welding mechanism 23 is located above the welding station for laser welding the second end of the bus bar 42 and the conductive sheet 43. The junction box 41 and the bus bar 42 are welded by laser, so that a large amount of consumable tin is saved, and the welding cost can be reduced.

The transferring device 3 is movably arranged between the first conveying mechanism 11 and the welding device and is used for transferring the photovoltaic modules 44 regulated by the first conveying mechanism 11 to a welding station of the welding device.

The photovoltaic modules 44 are firstly structured on the first conveying mechanism 11 in advance, the transfer device 3 transfers the photovoltaic modules 44 to the welding station of the welding device after the arrangement, and the welding device welds the bus bars 42 in the junction boxes 41 on the photovoltaic modules 44. The photovoltaic modules 44 are orderly arranged in advance, so that the photovoltaic modules 44 can be directly welded after being conveyed to the welding station by the transfer device 3 without being orderly arranged again, and the transfer efficiency is greatly improved.

The photovoltaic module 44 entering the welding station is subjected to laser welding through the laser welding mechanism 23, the welding cost is reduced, and the photographing processing mechanism 21 and the pressing mechanism 22 are arranged to improve the welding precision and effect.

As shown in fig. 1 and 6:

in this embodiment, the first conveying mechanism 11 includes a conveying assembly 13 and a regulating assembly, and the regulating assembly is disposed at an output end of the conveying assembly 13 and is used for regulating the photovoltaic assembly 44 before the transferring device 3 transfers the photovoltaic assembly 44 to the welding station. For one embodiment of the conveyor assembly 13 in the present application, a combination of a conveyor belt, rollers, and a motor may be used.

The regulating assembly comprises a first regulating part 141 and a second regulating part 142, the first regulating part 141 and the second regulating part 142 are respectively positioned at two sides of the output end of the conveying assembly 13, and the first regulating part 141 and the second regulating part 142 are configured to move towards the conveying assembly 13 so as to regulate the photovoltaic assembly 44 on the conveying assembly 13. The first and second regulating parts 141 and 142 can be air cylinders, and the two sides of the photovoltaic module 44 are pushed and pressed by the air cylinder driving ends, so that the photovoltaic module 44 is regulated in the direction perpendicular to the conveying direction.

Adopt first regular part 141 and second regular part 142 to move towards conveyor components 13 simultaneously, because first regular part 141 and second regular part 142 all have the stroke scope towards and keep away from conveyor components 13, when the photovoltaic module 44 of compatible different specifications, through controlling the stroke size of two regular parts, can guarantee that the central line along the direction of delivery of photovoltaic module 44 after being put together is always on one line, under the prerequisite that satisfies compatible photovoltaic module, can guarantee simultaneously to move the year precision that carries device 3.

The regulating assembly is designed to comprise a first regulating part 141 and a second regulating part 142, and the photovoltaic assembly 44 is regulated from two sides of the conveying assembly 13 by utilizing the two regulating parts, so that the photovoltaic assembly 44 can be regulated better; the first regulating part 141 and the second regulating part 142 are arranged at the output end of the conveying component 13, and are regulated on the side closer to the transfer device 3, so that the position deviation of the photovoltaic component 44 caused by the conveying of the conveying component 13 can be further reduced, the regulated photovoltaic component 44 is directly transferred to a welding station by the transfer device 3 under the condition that the position precision is unchanged, and the welding precision is further ensured.

Of course, when the photovoltaic modules 44 are aligned by the first and second aligning portions 141 and 142, the first aligning portion 141 on the transport module side may be fixed and the second aligning portion 142 may be moved toward the transport module 13 to complete the alignment of the photovoltaic modules 44 on the transport module 13.

Similarly, the second regulating portion 142 on the other side of the foreign language conveying component may be fixed, and the first regulating portion 141 may be moved toward the conveying component 13, so as to regulate the photovoltaic component 44 on the conveying component 13.

When guaranteeing that a regular portion of one side is motionless, make the regular portion of opposite side remove towards conveyor components 13, when photovoltaic module is regular, can guarantee regular time, have a fixed benchmark, can further improve regular at every turn, different photovoltaic module 44 all are more unified in the final position after this position is regular, can improve follow-up transfer device 3 and to photovoltaic module 44 transfer the precision.

As shown in fig. 1 and 6:

in this embodiment, the first conveying mechanism 11 further includes a first limiting component 131 and a second limiting component 132, the first limiting component 131 is located at the output end of the conveying component 13, the second limiting component 132 is located at the input end of the conveying component 13, and the first limiting component 131 and the second limiting component 132 are used for limiting two ends of the photovoltaic module 44 in the conveying direction before the photovoltaic module 44 is regulated by the regulating component.

The first conveying mechanism 11 drives the photovoltaic module 44 to move towards the first limiting component 131, due to the blocking of the first limiting component 131, one side of the photovoltaic module 44 contacting with the first limiting component 131 is limited, and then the second limiting component 132 limits the other side of the photovoltaic module 44, so that the photovoltaic module 44 stops conveying on the first conveying mechanism 11.

The two ends of the photovoltaic assembly 44 along the conveying direction are limited by the first limiting assembly 131 and the second limiting assembly 132, the photovoltaic assembly 44 is limited between the two limiting assemblies of the conveying assembly 13, the position of the photovoltaic assembly 44 in the conveying direction is limited, and when the transferring device 3 transfers the photovoltaic assembly at each time, the photovoltaic assembly 44 is at a fixed specified position, the transferring precision of the transferring device can be improved, and the welding precision is further improved.

The first transport mechanism 11 may also have an embodiment in which a regulating unit and a stopper unit are provided, and as shown in fig. 6, a second stopper mechanism 132 and a first stopper mechanism 131 are provided at the input end and the output end of the transport unit 13, respectively, and a first regulating portion 141 and a second regulating portion 142 are provided on both sides of the transport unit 13, respectively.

Before the photovoltaic module 44 is regulated, the first limiting mechanism 131 and the second limiting mechanism 132 are firstly utilized to limit the photovoltaic module in the front and back direction in the conveying direction, and then the first regulating part 141 and the second regulating part 142 regulate the photovoltaic module 44 with the limited front and back direction, so that the photovoltaic module 44 can be ensured to be fixed in the front, back, left and right directions (namely the conveying direction and the direction perpendicular to the conveying direction). When the regular photovoltaic modules 44 are transferred by the transfer device 3, the regular photovoltaic modules 44 are positioned at a certain position, so that the position accuracy of the transferred photovoltaic modules 44 is greatly improved, and the welding effect is ensured.

As shown in fig. 1 and 2:

in this embodiment, the first limiting component 131 is a limiting column higher than the conveying plane of the conveying component 13, and the photovoltaic component is limited by directly adopting the limiting column higher than the conveying plane, so that the structure is simple and the implementation is convenient.

The first position-limiting component 131 can also be a first position-limiting component 131 that can be lifted and lowered perpendicular to the conveying plane of the conveying component 13. When the photovoltaic module 44 needs to be blocked, the first limiting module 131 is controlled to ascend to be higher than the conveying plane, and the photovoltaic module 44 can be limited; when the blocking is not needed, the first limiting component 131 is controlled to descend to be lower than the conveying plane, and the conveying of the photovoltaic module 44 cannot be affected.

Specifically, when the first spacing subassembly 131 that adopts the liftable, first spacing subassembly 131 can include cylinder, mounting panel and gyro wheel, only need with mounting panel fixed mounting at the drive end of cylinder, with the gyro wheel roll-mounting on the mounting panel, after the cylinder drive mounting panel rises, the gyro wheel can rise along with the mounting panel, and the surface of gyro wheel can carry out spacing with photovoltaic module's side and block. The idler wheels are used for limiting the photovoltaic assembly, so that the influence on the photovoltaic assembly during blocking can be reduced.

The second limiting component 132 is a second limiting component 132 which can be lifted and lowered perpendicular to the conveying plane of the conveying component 13. At this time, the second limiting assembly 132 may adopt the structure of the liftable first limiting assembly 131.

The second stop assembly 132 may also be a third stop assembly that is tiltable relative to the conveying plane of the conveyor assembly 13. Specifically, the second limiting component 132 comprises a turning cylinder and a turning plate, the turning plate is fixedly arranged at the driving end of the turning cylinder, and when the photovoltaic module is limited by the first limiting component 131, the turning cylinder controls the turning plate to turn by a certain angle, so that the photovoltaic module 44 is pressed after the turning plate turns, and the limitation on the other side of the photovoltaic module is completed.

It is spacing to set up first spacing subassembly 131 to fixed spacing or go up and down, can block spacingly to one side of photovoltaic module 44, and spacing or upset are spacing in the spacing lift of rethread second spacing subassembly 132, can be spacing to the opposite side of photovoltaic module 44.

As shown in fig. 1 and 6:

in this embodiment, when the first limiting component 131 is a first limiting component 131 capable of ascending and descending perpendicular to the conveying plane of the conveying component 13, a sensing device is disposed at the front end of the first limiting component 131 for sensing whether the photovoltaic component 44 conveyed by the conveying component 13 reaches the front end of the first limiting component 131. The sensing device senses that the photovoltaic module 44 reaches the front end of the first limiting component 131 and then sends a control signal, and the first limiting component 131 is lifted, blocked and limited through the control signal.

The sensing device is arranged to detect whether the photovoltaic module 44 reaches a set limit position, and to start the first limit component 131 to ascend for blocking.

As shown in fig. 1 and 3:

in this embodiment, the welding device further comprises a support mechanism 24, the support mechanism 24 being arranged at the welding station for carrying the photovoltaic module 44; the transferring device 3 transfers the photovoltaic module 44 structured by the first conveying mechanism 11 onto the supporting mechanism 24. The support mechanism 24 is arranged to hold the photovoltaic module 44, and the junction box 41 of the photovoltaic module 44 is laser welded on the support mechanism 24.

In this embodiment, 3 support mechanisms 24 are provided in parallel at intervals, and 3 long support mechanisms are provided in parallel at a portion where the support mechanism 24 supports the photovoltaic module 44, so that the photovoltaic module 44 can be stably supported, and a space can be made available for the transfer of the transfer device.

As shown in fig. 1 and 3:

in this embodiment, the transfer device 3 includes a pallet 31, a first drive mechanism 32, and a second drive mechanism 33, and the first drive mechanism 32 is used to drive the pallet 31 to reciprocate between the first conveying mechanism 11 and the support mechanism 24.

When the first driving mechanism 32 drives the pallet 31 to move below the first conveying mechanism 11, the second driving mechanism 33 is used for driving the pallet 31 to ascend relative to the conveying plane of the first conveying mechanism 11 so as to lift the photovoltaic module 44 on the first conveying mechanism 11 out of the conveying plane;

when the first driving mechanism 32 drives the pallet 31 to move above the supporting mechanism 24, the second driving mechanism 33 is used for driving the pallet 31 to descend relative to the supporting plane of the supporting mechanism 24 so as to release the photovoltaic module 44 on the pallet 31 onto the supporting plane.

At least two groups of supporting plates 31 are arranged and jointly support the photovoltaic module 44; the supporting plate 31 and the conveying assembly 13 are arranged in a staggered mode, so that the supporting plate 31 can be avoided in a staggered mode when moving towards the conveying assembly 13, and the supporting plate 31 is convenient for lifting and transferring the photovoltaic assembly 44 from the first conveying mechanism 11.

The first driving mechanism 32 can selectively drive the supporting plate 31 to move along the conveying direction by using a motor lead screw nut structure; the second driving mechanism 33 can drive the pallet 31 to move up and down by using an electric cylinder. Other mechanisms for the first drive mechanism 32 and the second drive mechanism 33 may be used, such as a motor timing belt structure, an air cylinder, etc., that can achieve the motion requirements.

Through first actuating mechanism 32 and second actuating mechanism 33 drive layer board 31 with photovoltaic module 44 transition transport, compare in using the conveyer belt to carry out transition transport, can not destroy by orderly good photovoltaic module's position state in advance, photovoltaic module's position state around can better assurance shifting, this kind of mode transport accuracy is higher.

As shown in fig. 1:

in this embodiment, the welding system further includes a second conveying mechanism 12, where the second conveying mechanism 12 is disposed at a subsequent stage of the welding device, and is configured to convey the photovoltaic module 44 welded by the welding device or the photovoltaic module 44 not welded by the welding device to a subsequent stage; the transfer device 3 transfers the photovoltaic module 44 on the support mechanism 24 to the second conveying mechanism 12.

Set up second conveying mechanism 12, will weld the back or because of some reasons unfinished the timely transportation of welded photovoltaic module 44 to next process, improved the operating efficiency of equipment, can effectively avoid photovoltaic module 44's backlog, make the welding system of this application can adapt to different application scenarios. The photovoltaic module 44 on the supporting mechanism 24 is transferred to the second conveying mechanism 12 by the transfer device 3, so that the photovoltaic module 44 is output, and the structure is compact and reliable.

In order to make the structure of the welding system more compact, the transfer device 3 can reciprocate among the first conveying mechanism 11, the supporting mechanism 24 and the second conveying mechanism 12, specifically, please refer to fig. 3, the transfer device 3 is slidably mounted at the welding station, the supporting plate 31 of the transfer device 3 is inserted into one side of the supporting mechanism 24, in fig. 3, 2 supporting plates 31 and 3 long supporting mechanisms 24 are designed, as can be seen from the figure, 2 supporting plates 31 are respectively arranged on one side of the outer 2 supporting mechanisms 24, and 2 supporting plates 31 are arranged in a staggered way with the conveying assemblies 13 and the conveying assemblies of the second conveying mechanism in the conveying direction. When the first driving mechanism 32 drives the pallet 31 to move leftwards, a part of the left side of the pallet 31 is transferred to the position below the conveying component 13, the right side of the pallet 31 is still positioned in the welding station, and at the moment, while one side of the transferring device 3 is positioned below the first conveying mechanism 11 to prepare for transferring photovoltaic components, the photovoltaic components on the other side of the transferring device positioned in the welding station can still be subjected to laser welding; when the first driving mechanism 3 drives the supporting plate 31 to move rightwards, a part of the left side of the supporting plate 31 carries the photovoltaic module to move to a welding station, the photovoltaic module is subjected to laser welding, and meanwhile, the part of the right side of the supporting plate 31 carries the photovoltaic module which is welded or can not be welded to reach the upper part of the second conveying mechanism.

The transfer device 3 and the supporting mechanism 24 are arranged at the welding station at the same time, and the transfer device 3 reciprocates between the first conveying mechanism 11 and the second conveying mechanism 12, so that the structure of the welding system is more compact on one hand, and the production beat is greatly improved on the other hand.

As shown in fig. 1, 4, 7 and 8:

in this embodiment, the pressing mechanism 22 includes at least one pressing component 221, the pressing component 221 can move toward or away from the junction box 41 along the vertical direction, the pressing component 221 includes at least one pressing head 222, an avoiding groove 223 is formed in the pressing head 222, the pressing head 222 presses and holds the second end of the bus bar 42 on the conductive sheet 43, a laser beam of the laser welding mechanism 23 passes through the avoiding groove 223 and strikes the second end of the bus bar 42, and welding of the second end of the bus bar 42 and the conductive sheet 43 is completed.

The bus bar 42 can be pressed and held on the conductive sheet 43 by the pressing and holding assembly 221, so that laser welding is performed in a tightly attached state, and a welding effect is guaranteed. By arranging the avoiding groove 223 on the pressing head 222, the bus bar 42 can be stably pressed and the welding equipment can be avoided, and the welding effect is improved.

As shown in fig. 4 and 7:

in this embodiment, the pressing assembly 221 further includes a buffer portion 224, and the buffer portion 224 is disposed above the pressing head 222 for buffering the pressing force of the pressing head 222. When the pressing member 221 is pressed down, the buffer portion 224 is driven to press the pressing head 222, so that the pressing force applied to the bus bar 42 is the elastic force of the buffer portion 224. The provision of the buffer portion 224 can provide a buffer when the pressing member 221 presses the bus bar 42, thereby preventing the bus bar 42 or the junction box 41 from being damaged due to excessive pressing.

As shown in fig. 1, 4 and 7:

the laser welding mechanism 23 includes a laser 231, the laser 231 being configured to be movable in a direction perpendicular to the conveying direction of the first conveying mechanism 11, parallel to the conveying direction of the first conveying mechanism 11; adjustment of the laser 231 in the parallel and vertical directions is required to match the soldering position of the terminal block 41 under different conditions with the pressing assembly 221. By providing that the laser 231 is movable in a direction perpendicular and parallel to the conveying direction of the first conveying mechanism 11, the welding position of the terminal block 41 in different situations can be matched.

The pressing member 221 is configured to be movable in a direction perpendicular to the conveying direction of the first conveying mechanism 11; and/or, the pressing member 221 is configured to be movable in a conveying direction parallel to the first conveying mechanism 11. The pressing component 221 can move to the corresponding position according to the junction boxes 41 with different positions, different numbers and different models, so that the applicability of the equipment is improved.

According to the above description, in the first embodiment, the pressing component 221 can move along the direction perpendicular to the conveying direction of the first conveying mechanism 11, at the welding station, the pressing component 221 is located above the junction box 41 of the photovoltaic module, and in order to accurately press the bus bar to be welded, the pressing component 221 moves along the direction perpendicular to the conveying direction of the first conveying mechanism 11 to be directly above the junction box 41; in addition, when there are multiple groups of junction boxes 41 on one photovoltaic module 44, the multiple groups of junction boxes 41 are distributed at intervals in the conveying direction perpendicular to the first conveying mechanism 11, and when there is only one pressing and holding module 221, the pressing and holding module 221 needs to be adjusted in the conveying direction perpendicular to the first conveying mechanism 11 to weld the junction boxes one by one; when there are a plurality of pressing members 221, since the positions of the pressing members 221 and the terminal boxes do not correspond, it may be necessary to adjust the pressing members 221 in the direction perpendicular to the conveying direction of the first conveying mechanism 11.

According to the above description, in the second embodiment, the pressing and holding assembly 221 can move along the direction parallel to the conveying direction of the first conveying mechanism 11, at the welding station, the pressing and holding assembly 221 is located above the junction box 41 of the photovoltaic module, and in order to accurately press the bus bar to be welded, the pressing and holding assembly 221 moves along the direction parallel to the conveying direction of the first conveying mechanism 11 to be directly above the junction box 41; in addition, when there are multiple groups of junction boxes 41 on one photovoltaic module 44, the multiple groups of junction boxes 41 are distributed at intervals in the conveying direction parallel to the first conveying mechanism 11, and when there is only one pressing component 221, the pressing component 221 needs to be adjusted in the conveying direction parallel to the first conveying mechanism 11 to weld the junction boxes one by one; when there are a plurality of pressing members 221, since the positions of the pressing members 221 and the terminal block do not correspond, it may be necessary to adjust the pressing members 221 in the conveying direction parallel to the first conveying mechanism 11. According to the above description, in the third embodiment, the pressing and holding assembly 221 can move along the direction perpendicular and parallel to the conveying direction of the first conveying mechanism 11, and after the photovoltaic module 44 reaches the welding station, the pressing and holding assembly 221 can respectively move along the direction perpendicular or parallel to the conveying direction of the first conveying mechanism 11 to be above the photovoltaic module 44 and press and hold the junction box 41 on the photovoltaic module 44.

As shown in fig. 1, 4 and 7:

in this embodiment, the laser welding mechanism 23 includes a laser 231, and the laser 231 is configured to be movable in a direction perpendicular to the conveying direction of the first conveying mechanism 11 and in parallel to the conveying direction of the first conveying mechanism 11;

when the number of the pressing members 221 is at least two, the at least two pressing members 221 are configured to be independently movable in a direction perpendicular to the conveying direction of the first conveying mechanism 11; and/or, at least two pressing assemblies 221 are configured to be independently movable along a conveying direction parallel to the first conveying mechanism 11.

The laser 231 and the pressing and holding assembly 221 can be moved to an adjustment position by rotating on the rack through a driving gear, and can also be driven through a lead screw nut or a synchronous belt.

When there are at least two pressing assemblies 221, the types of the terminal boxes to be pressed and held by each batch of the pressing assemblies 221 may be different (the types are different, and the positions of the bus bars to be pressed and held in the terminal boxes may be different), and the positions of the terminal boxes to be pressed and held by each pressing assembly 221 may be different, so that in order to realize the pressing and holding of the corresponding terminal boxes by the pressing assemblies, the pressing assemblies are arranged to be capable of being independently adjusted in the conveying direction perpendicular to the first conveying mechanism and/or in the conveying direction parallel to the first conveying mechanism, and the terminal boxes in different positions and different types can be maximally compatible.

As shown in fig. 1 and 7:

in this embodiment, the laser 231 is configured to be movable in a vertical direction toward or away from the junction box 41; the laser welding mechanism 23 further includes a distance measuring sensor disposed at one side of the laser 231 for detecting a vertical distance from the laser 231 to the junction box 41.

When the junction box 41 is fixed on the photovoltaic module 44, for example, in the glue bonding process, the thickness of the cured glue may affect the position height of the conductive sheet in the junction box, and the junction boxes 41 with the same size may have different heights due to processing errors or the junction boxes 41 with different sizes, so that the distance measuring sensor is required to detect the vertical distance from the laser 231 to the junction box 41, and the welding height of the laser 231 is adjusted for the junction boxes 41 with different heights during each welding.

The laser 231 can cooperate with the distance measuring sensor in the vertical movement, and the height of the position where the laser emits light is adjusted to match the junction box 41 under different conditions. But set up laser 231 vertical movement and can cooperate the range sensor, adjust the position height of laser light-emitting, match terminal box 41 under the different situations.

As shown in fig. 1, 5 and 7:

in this embodiment, the photographing processing mechanism 21 includes at least one camera 211, and the camera 211 is configured to be movable in a direction perpendicular to the conveying direction of the first conveying mechanism 11 and in parallel to the conveying direction of the first conveying mechanism 11.

The camera 211 is arranged to be movable in a direction perpendicular to the conveying direction of the first conveying mechanism 11 and in a direction parallel to the conveying direction of the first conveying mechanism 11, so that different types of photovoltaic modules, i.e. the junction boxes are positioned differently on the photovoltaic modules, can be compatible. Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.

It will be understood that the invention is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

Claims (14)

1. A welding system is characterized by being used for welding a junction box and a bus bar, wherein the junction box comprises at least one conducting strip, the junction box is fixedly arranged on a photovoltaic module, a first end of the bus bar is connected to the photovoltaic module, and a second end of the bus bar penetrates through the junction box; the welding system comprises a conveying device, a welding device and a transferring device,

the conveying device comprises a first conveying mechanism, and the first conveying mechanism is arranged in the front of the welding device and is used for conveying and regulating the photovoltaic modules;

the welding device comprises a photographing processing mechanism, a pressing mechanism and a laser welding mechanism, wherein the photographing processing mechanism is positioned above the pressing mechanism and the laser welding mechanism and is used for photographing a junction box on a photovoltaic assembly positioned at a welding station; the pressing mechanism is positioned above the welding station and used for pressing and holding the second end of the bus bar so as to enable the second end of the bus bar to be in contact with the conducting strip; the laser welding mechanism is positioned above the welding station and used for performing laser welding on the second end of the bus bar and the conducting plate;

the transfer device is movably arranged between the first conveying mechanism and the welding device and used for transferring the photovoltaic modules which are structured by the first conveying mechanism to the welding station of the welding device.

2. The welding system of claim 1, wherein the first conveyor mechanism comprises a conveyor assembly and a warping assembly, the warping assembly being disposed at an output end of the conveyor assembly for warping the photovoltaic assembly prior to the transfer device transferring the photovoltaic assembly to the welding station;

the regulating assembly comprises a first regulating part and a second regulating part, the first regulating part and the second regulating part are respectively located on two sides of the output end of the conveying assembly, and the first regulating part and/or the second regulating part are/is configured to move towards the conveying assembly so as to regulate the photovoltaic assembly on the conveying assembly.

3. The welding system of claim 2, wherein the first conveyor mechanism further comprises a first limiting assembly and a second limiting assembly, the first limiting assembly being located at an output end of the conveyor assembly, the second limiting assembly being located at an input end of the conveyor assembly, the first limiting assembly and the second limiting assembly being configured to limit both ends of the photovoltaic assembly in the conveying direction before the photovoltaic assembly is conditioned by the conditioning assembly.

4. The welding system of claim 3, wherein the first position limiting assembly is a position limiting column that is higher than the conveying plane of the conveying assembly, or a first position limiting assembly that can be lifted perpendicular to the conveying plane of the conveying assembly;

the second limiting component is a second limiting component which can be lifted and descended perpendicular to the conveying plane of the conveying component, or a third limiting component which can be overturned relative to the conveying plane of the conveying component.

5. The welding system according to claim 4, wherein when the first limiting assembly is a first limiting assembly which can be lifted and lowered perpendicular to the conveying plane of the conveying assembly, a sensing device is arranged at the front end of the first limiting assembly and used for sensing whether the photovoltaic assembly conveyed by the conveying assembly reaches the front end of the first limiting assembly.

6. The welding system of claim 1, wherein the welding device further comprises a support mechanism disposed at the welding station for carrying the photovoltaic assembly;

the transferring device transfers the photovoltaic module regulated by the first conveying mechanism to the supporting mechanism.

7. The welding system of claim 6, wherein the transfer device comprises a pallet, a first drive mechanism, and a second drive mechanism, the first drive mechanism for driving the pallet to reciprocate between the first transport mechanism and the support mechanism;

when the first driving mechanism drives the supporting plate to move below the first conveying mechanism, the second driving mechanism is used for driving the supporting plate to ascend relative to the conveying plane of the first conveying mechanism so as to lift the photovoltaic module on the first conveying mechanism away from the conveying plane;

when the first driving mechanism drives the supporting plate to move above the supporting mechanism, the second driving mechanism is used for driving the supporting plate to descend relative to the supporting plane of the supporting mechanism so as to release the photovoltaic module on the supporting plate onto the supporting plane.

8. The welding system according to claim 6, further comprising a second conveying mechanism provided at a subsequent stage of the welding device for conveying the photovoltaic module welded by the welding device or the photovoltaic module not welded by the welding device to a subsequent stage;

the transferring device transfers the photovoltaic module on the supporting mechanism to the second conveying mechanism.

9. The welding system of claim 1, wherein the pressing mechanism comprises at least one pressing component, the pressing component can move towards or away from the junction box along a vertical direction, the pressing component comprises at least one pressing head, an avoiding groove is formed in the pressing head, the pressing head presses the second end of the bus bar onto the conductive sheet, and a laser beam of the laser welding mechanism penetrates through the avoiding groove and strikes the second end of the bus bar, so that the second end of the bus bar and the conductive sheet are welded.

10. The welding system of claim 9, wherein the pressure holding assembly further comprises a buffer disposed above the pressure holding head for buffering a pressure holding force of the pressure holding head.

11. The welding system of claim 9, wherein the laser welding mechanism comprises a laser configured to be movable in a conveyance direction perpendicular to the first conveyance mechanism, parallel to the conveyance direction of the first conveyance mechanism;

the pressing component is configured to be movable along a conveying direction perpendicular to the first conveying mechanism; and/or the pressing component is configured to be movable along the conveying direction parallel to the first conveying mechanism.

12. The welding system of claim 9, wherein the laser welding mechanism comprises a laser configured to be movable in a transport direction perpendicular to the first transport mechanism, parallel to the first transport mechanism;

when the number of the pressing components is at least two, the at least two pressing components are configured to be independently movable along the conveying direction perpendicular to the first conveying mechanism; and/or the at least two pressing and holding assemblies are configured to be independently movable along the conveying direction parallel to the first conveying mechanism.

13. The welding system of claim 11 or 12, wherein the laser is configured to be movable in a vertical direction towards or away from the junction box; the laser welding mechanism further comprises a distance measuring sensor, wherein the distance measuring sensor is arranged on one side of the laser and used for detecting the distance between the laser and the vertical distance of the junction box.

14. The welding system of claim 9, wherein the photo processing mechanism comprises at least one camera configured to be movable in a direction perpendicular to the transport direction of the first transport mechanism and parallel to the transport direction of the first transport mechanism.

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