Busbar electromagnetic welding device

Abstract

The present invention discloses a busbar electromagnetic welding device, comprising a machine base, an electromagnetic welding module and a feeding and transferring assembly. The machine base is formed with a conveying channel extending along the front-to-back direction and a welding station on the conveying path of the conveying channel. The electromagnetic welding module comprises an electromagnetic heating block extending along the left-to-right direction, the electromagnetic heating block is arranged on the machine base and correspondingly located at the welding station. The feeding and transferring assembly is arranged on the machine base. When a plurality of solar cell strings arranged at intervals along the front-to-back direction are conveyed to the welding station along the conveying channel, and the welding ends of the busbar welding leads of the plurality of solar cell strings are located on the electromagnetic heating block, the busbar segment to be welded is fed to the electromagnetic heating block through the feeding and transferring assembly, so that the busbar segment to be welded is overlapped with the busbar welding lead on the electromagnetic heating block. The electromagnetic heating block generates heat to weld the overlapped busbar welding lead to the busbar segment to be welded. Such an arrangement simplifies the structure of the device for welding the busbar.

Description

Technical Field

[0001] The invention relates to the technical field of solar cell sheet welding, and in particular to a busbar electromagnetic welding device. Background Art

[0002] Solar energy is a renewable and clean energy source. Using solar energy to generate electricity has been increasingly valued and favored by people. After the battery cells are welded in series one by one to form a battery string, they need to be busbar welded in parallel to form an interconnected battery panel. However, the existing technology uses ceramic welding knives to weld the busbars. The ceramic welding knives themselves are small and the welding position and size are limited. When the grid lines of the battery cells change, the number and position of the ceramic welding knives also need to be changed and adjusted accordingly, which leads to a complex structure of the device for welding the busbars. Summary of the invention

[0003] The main purpose of the present invention is to provide a busbar electromagnetic welding device, aiming to simplify the structure of the device for welding the busbar.

[0004] To achieve the above-mentioned purpose, the busbar electromagnetic welding device proposed in the present invention is used in a solar cell welding machine, comprising:

[0005] A machine base is formed with a conveying channel extending in a front-rear direction and a welding station located on the conveying path of the conveying channel;

[0006] An electromagnetic welding module, comprising an electromagnetic heating block extending in the left and right directions, wherein the electromagnetic heating block is arranged on the machine base and correspondingly located at the welding station; and

[0007] A material feeding and transferring assembly is arranged on the machine base;

[0008] Wherein, a plurality of solar cell strings arranged at intervals in the front-to-back direction are transported to the welding station along the transport channel, and the welding ends of the busbar welding leads of the plurality of solar cell strings are placed on the electromagnetic heating block;

[0009] The material feeding and transferring assembly is used to feed the busbar segments to be welded onto the electromagnetic heating block and overlap the busbar welding leads on the electromagnetic heating block.

[0010] Optionally, the machine base is further formed with a material preparation station, and the material preparation station and the welding station are arranged in a spaced relationship in the front-to-back direction;

[0011] The feeding and transferring assembly comprises:

[0012] A material feeding assembly, the material feeding assembly is used to straighten the solder strip in the left-right direction, cut the solder strip into the busbar solder strip segments, and transfer the busbar solder strip segments to the material preparation station; and

[0013] The transfer assembly is used to pick up the busbar ribbon segment at the material preparation station, adjust the horizontal angle of the busbar ribbon segment, and transfer the busbar ribbon segment to the busbar welding leads of multiple solar cell strings at the welding station.

[0014] Optionally, the feeding assembly comprises:

[0015] The welding tape storage mechanism comprises a welding tape storage barrel rotatably mounted on the machine base, and the welding tape is wound on the welding tape storage barrel;

[0016] a welding ribbon pulling mechanism, located on the left side of the welding ribbon storage mechanism, the welding ribbon pulling mechanism comprising a welding ribbon clamping structure movably mounted on the machine base in the left-right direction, for clamping the welding ribbon released from the welding ribbon storage barrel and straightening the welding ribbon; and,

[0017] A welding ribbon cutting mechanism, disposed between the welding ribbon storage mechanism and the welding ribbon pulling mechanism, for cutting the straightened welding ribbon into the converged welding ribbon segments;

[0018] After the welding ribbon cutting mechanism completes cutting, the welding ribbon pulling mechanism continues to pull the converged welding ribbon segment to the material preparation station.

[0019] Optionally, the solder tape storage barrel is rotatably mounted on the machine base along an axis extending in the front-rear direction, and the solder tape storage mechanism further comprises a solder tape preparation guide structure and a holding structure, wherein a guide path is formed on the solder tape preparation guide structure for guiding and releasing the solder tape wound on the solder tape storage barrel, and the holding structure is arranged on the right side of the solder tape cutting mechanism for holding the solder tape passing through the guide path; and / or,

[0020] The welding ribbon traction mechanism also includes a traction drive system and a placement platform, the traction drive system includes a traction linear guide rail extending in the left and right directions and a traction slide slidably mounted on the traction linear guide rail, the placement platform includes a placement plate extending in the left and right directions, the placement plate is placed at the material preparation station, and an accommodating groove is formed on the upper end surface of the placement plate, wherein the welding ribbon clamping structure is arranged at the upper end of the traction slide, and the welding ribbon clamping structure migrates the busbar welding ribbon segment into the accommodating groove; and / or,

[0021] The welding strip cutting mechanism also includes a cutting structure, which includes a cutting base and a cutting knife movably installed on the cutting base along the up and down directions. A cutting space is formed between the cutting knife and the cutting base, and the cutting space is used for the welding strip to pass through.

[0022] Optionally, the transfer component comprises:

[0023] A first transfer mounting seat, movably mounted to the machine base in a front-rear direction;

[0024] A second transfer mounting seat, movably mounted on the first transfer mounting seat in an up-down direction;

[0025] An adsorption seat is rotatably mounted on the second transfer mounting seat along an up-down axis, and the lower end of the adsorption seat is used to adsorb the welding strip;

[0026] A first transfer drive system, used to drive the first transfer mounting seat to move;

[0027] A second transfer drive system is used to drive the second transfer mounting seat to move; and

[0028] The third transfer driving system is used to drive the adsorption seat to move.

[0029] Optionally, the first transfer drive system comprises a first transfer linear guide rail provided on the machine base and extending in the front-rear direction, and the first transfer mounting seat is slidably mounted on the first transfer linear guide rail; and / or,

[0030] The second transfer drive system comprises a second transfer linear guide rail which is arranged on the first transfer mounting seat and extends in the vertical direction, and the second transfer mounting seat is slidably mounted on the second transfer linear guide rail; and / or,

[0031] The third transfer drive system includes an angle adjustment motor rotatably mounted on the second transfer mounting seat along an up-down axis, and an output shaft of the angle adjustment motor is drivingly connected to the upper end of the adsorption seat.

[0032] Optionally, a guiding assembly is arranged between the feeding assembly and the transfer assembly, and the guiding assembly includes two guiding wheel groups arranged relatively to each other in the front-to-back direction, and a guiding space extending in the left-to-right direction is formed between the two guiding wheel groups, wherein the welding strip passes through the guiding space and is arranged parallel to the electromagnetic heating block.

[0033] Optionally, among the two guide wheel groups, at least one guide wheel group has an active stroke moving toward the other guide wheel group.

[0034] Optionally, a carrying platform for carrying a plurality of solar cell strings is provided at the welding station;

[0035] The busbar electromagnetic welding device also includes a photographing component arranged on the machine base, and the photographing component includes a camera corresponding to the welding station and located above the supporting platform. The camera is used to photograph the solar cell string at the welding station to obtain image data, which is used for the control processing device to adjust the conveying displacement of the busbar welding strip segment according to the image data.

[0036] Optionally, the busbar electromagnetic welding device also includes a conveying component arranged on the machine base and used to convey the solar cell string, the conveying component includes a conveyor belt assembly, the conveyor belt assembly has a conveying section extending along the front-to-back direction, the conveying section is located on the conveying channel, the middle part of the conveying section is recessed to form a groove extending along the left-to-right direction, and the electromagnetic heating block is arranged in the groove.

[0037] In the technical solution provided by the present invention, the busbar electromagnetic welding device includes a machine base, an electromagnetic welding module and a feeding and transferring assembly. The machine base is formed with a conveying channel extending along the front-to-back direction and a welding station on the conveying path of the conveying channel. The electromagnetic welding module includes an electromagnetic heating block extending along the left-to-right direction. The electromagnetic heating block is arranged on the machine base and correspondingly located at the welding station. The feeding and transferring assembly is arranged on the machine base. When a plurality of solar cell strings arranged at intervals along the front-to-back direction are conveyed to the welding station along the conveying channel, and the welding ends of the busbar welding leads of the plurality of solar cell strings are located on the electromagnetic heating block, the busbar segment to be welded is fed to the electromagnetic heating block through the feeding and transferring assembly, so that the busbar segment to be welded is overlapped with the busbar welding lead on the electromagnetic heating block. The electromagnetic heating block generates heat to weld the overlapped busbar welding lead to the busbar segment to be welded, thereby simplifying the structure of the device for welding busbars. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0039] Figure 1 A schematic diagram of the three-dimensional structure of an embodiment of a busbar electromagnetic welding device provided by the present invention;

[0040] Figure 2 It is a three-dimensional structural schematic diagram of the feeding and transferring component part of FIG1;

[0041] Figure 3 1 is a schematic diagram of the three-dimensional structure of the welding strip storage mechanism;

[0042] Figure 4 for Figure 1 A schematic diagram of the three-dimensional structure of the welding strip traction mechanism;

[0043] Figure 5 for Figure 1 A schematic diagram of the three-dimensional structure of the transfer assembly in FIG.

[0044] Figure 6 for Figure 1 A schematic diagram of the three-dimensional structure of the camera assembly;

[0045] Figure 7 for Figure 1 Schematic diagram of the three-dimensional structure of the conveying module.

[0046] Description of Figure Numbers:

[0047] Label name Label name 100 Busbar electromagnetic welding device 322 Second transfer mount 1 Machine base 323 Adsorption seat 2 Electromagnetic welding module 324 First transfer drive system 21 Electromagnetic heating block 3241 First transfer linear guide 31 Feeding components 325 Second transfer drive system 311 Welding strip storage mechanism 3251 Second transfer linear guide 3111 Welding belt storage barrel 326 The third transfer drive system 3112 Welding ribbon preparation guide structure 3261 Angle adjustment motor 3113 Pressing structure 33 Guide components 31131 Pressing seat 331 Guide wheel set 31132 Pressure rod 4 Loading platform 312 Welding strip pulling mechanism 5 Camera Components 3121 Welding ribbon clamping structure 51 Camera 3122 Traction drive system 6 Conveying module 31221 Traction linear guide 61 Conveyor belt components 31222 Traction slide 611 Pulley set 3123 Placement Platform 6111 Pulley 313 Welding strip cutting mechanism 612 conveyor 3131 Cutting structure a Conveying section 31311 Cutting base a1 First conveying section 32 Transfer components a2 Second conveying section 321 First transfer mount

[0048] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings in conjunction with the embodiments. DETAILED DESCRIPTION

[0049] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0050] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0051] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in the field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0052] Solar energy is a renewable and clean energy source. Using solar energy to generate electricity has been increasingly valued and favored by people. After the battery cells are welded in series one by one to form a battery string, they need to be busbar welded in parallel to form an interconnected battery panel. However, the existing technology uses ceramic welding knives to weld the busbars. The ceramic welding knives themselves are small and the welding position and size are limited. When the grid lines of the battery cells change, the number and position of the ceramic welding knives also need to be changed and adjusted accordingly, which leads to a complex structure of the device for welding the busbars.

[0053] In view of this, the present invention provides a busbar electromagnetic welding device, wherein: Figures 1 to 7 A schematic structural diagram of an embodiment of a busbar electromagnetic welding device provided by the present invention.

[0054] See also Figure 1 to Figure 2 The busbar electromagnetic welding device 100 includes a machine base 1, an electromagnetic welding module 2 and a feeding and transferring assembly. The machine base 1 is formed with a conveying channel extending in the front-to-back direction and a welding station on the conveying path of the conveying channel. The electromagnetic welding module 2 includes an electromagnetic heating block 21 extending in the left-to-right direction. The electromagnetic heating block 21 is arranged on the machine base 1 and is correspondingly located at the welding station. The feeding and transferring assembly is arranged on the machine base 1. When a plurality of solar cell strings arranged at intervals in the front-to-back direction are conveyed to the welding station along the conveying channel, and the welding ends of the busbar welding leads of the plurality of solar cell strings are located on the electromagnetic heating block 21, the feeding and transferring assembly is used to feed the busbar segment to be welded to the electromagnetic heating block 21, and overlap with the busbar welding leads located on the electromagnetic heating block 21.

[0055] In the technical solution provided by the present invention, the busbar segment to be welded is fed to the electromagnetic heating block 21 through the feeding and transferring assembly, so that the busbar segment to be welded is overlapped with the busbar welding lead on the electromagnetic heating block 21, and the electromagnetic heating block 21 generates heat so that the overlapped busbar welding lead is welded to the busbar segment to be welded. Such an arrangement simplifies the structure of the device for welding busbars.

[0056] It should be noted that the electromagnetic welding module also includes a water cooling component, which is used to cool the high-temperature electromagnetic heating block to avoid safety hazards caused by excessive temperature of the electromagnetic heating block. Specifically, in an embodiment of the present application, the working water temperature set by the water cooling component is 25°C to 30°C. Because the welding time of the electromagnetic heating block is intermittent, when the electromagnetic heating block is working, the temperature of the electromagnetic heating block rises to the welding temperature, for example, the welding temperature is 350°C. After the welding is completed, the temperature of the electromagnetic heating block is cooled by the water cooling component to the working water temperature of the water cooling component to avoid safety hazards caused by excessive temperature of the electromagnetic heating block, and because the electromagnetic heating block works intermittently, energy consumption is reduced.

[0057] Specifically, the base 1 is also formed with a material preparation station, and the material preparation station and the welding station are arranged in a front-to-back direction at intervals. The material feeding and transferring assembly includes a material feeding assembly 31 and a transferring assembly 32. The material feeding assembly 31 is used to straighten the welding ribbon in the left-right direction, and cut the welding ribbon into the busbar welding ribbon segments, and transfer the busbar welding ribbon segments to the material preparation station. The transferring assembly 32 is used to pick up the busbar welding ribbon segments at the material preparation station, adjust the horizontal angle of the busbar welding ribbon segments, and transfer the busbar welding ribbon segments to the busbar welding leads of the plurality of solar cell strings at the welding station. The line is configured such that a string of solar cells is placed at the welding station, the feeding component 31 straightens, cuts, and other pre-processes the welding ribbon into a busbar welding ribbon segment, and places it at the preparation station, the transfer component 32 picks up the busbar welding ribbon segment, adjusts the horizontal angle of the busbar welding ribbon segment, and transfers the busbar welding ribbon segment to the busbar welding leads of multiple solar cell strings at the welding position, and the welding operation is performed through the electromagnetic welding module 2. With such a configuration, the automatic busbar welding of the solar cell string is realized, and the stability and yield rate of the product welding process are improved.

[0058] Common solder strips are provided in rolls, and the feeding assembly 31 is mainly used to straighten and cut the solder strips into busbar solder strip segments. In one embodiment, please refer to Figure 3The feeding assembly 31 includes a ribbon storage mechanism 311, a ribbon pulling mechanism 312 and a ribbon cutting mechanism 313. The ribbon storage mechanism 311 includes a ribbon storage barrel 3111 rotatably mounted on the machine base 1. The ribbon storage barrel 3111 is provided with a ribbon. The ribbon pulling mechanism 312 is located on the left side of the ribbon storage mechanism 311. The ribbon pulling mechanism 312 includes a ribbon clamping structure 3121 movably mounted on the machine base 1 in the left and right directions, which is used to clamp the ribbon from the ribbon storage barrel 3111. The released solder strip is straightened, and the solder strip cutting mechanism 313 is arranged between the solder strip storage mechanism 311 and the solder strip pulling mechanism 312, for cutting the straightened solder strip into the convergent solder strip segments, wherein after the solder strip cutting mechanism 313 completes cutting, the solder strip pulling mechanism 312 continues to pull the convergent solder strip segments to the material preparation station. Such an arrangement facilitates the automatic forming and positioning of the convergent solder strip segments, facilitates the transfer operation of the transfer component 32, and improves production efficiency.

[0059] The solder strip storage mechanism 311 is provided with a solder strip storage barrel 3111, and the solder strip storage barrel 3111 is provided with a solder strip. In order to facilitate pulling out and initially straightening the solder strip, in one embodiment, refer to Figure 3 and Figure 4 The solder tape storage barrel 3111 is rotatably installed on the machine base 1 along an axis extending forward and backward. The solder tape storage mechanism 311 also includes a solder tape preparation guide structure 3112 and a holding structure 3113. A guide path is formed on the solder tape preparation guide structure 3112 to guide and release the solder tape rolled on the solder tape storage barrel 3111. The holding structure 3113 is arranged on the right side of the solder tape cutting mechanism 313 to hold the solder tape passing through the guide path. By so doing, the solder tape released from the solder tape storage barrel 3111 is always in a straightened state, which is convenient for subsequent cutting operations.

[0060] It should be noted that the solder strip material preparation guide structure 3112 is mainly used to preliminarily straighten the solder strip within a limited space. The solder strip material preparation guide structure 3112 may include a fixed pulley and a movable pulley. The movable pulley is located below the solder strip material storage barrel 3111, and mainly relies on gravity to preliminarily tension the solder strip. The fixed pulley is mainly used to change the output direction of the solder strip, and finally makes the solder strip extend in the left and right directions for easy cutting, wherein the guide path passes through the pulley grooves of the fixed pulley and the movable pulley; the holding structure 3113 is mainly used to hold the solder strip to prevent the end of the solder strip that needs to be cut from falling off For example, the pressing structure 3113 includes a pressing seat 31131 and a pressing rod 31132 arranged on the machine base 1, the left end face of the pressing seat 31131 is penetrated with a first penetration hole for passing the welding strip, the upper end face of the pressing seat 31131 is provided with a mounting hole connected to the first penetration hole, the pressing rod 31132 is movably installed in the mounting hole along the up and down directions, and the welding strip is pressed or released by the movement of the pressing rod 31132, for example, the welding strip needs to be pressed during the cutting process or after the cutting is completed, and when the welding strip pulling structure pulls the welding strip, the pressure needs to be released and the welding strip is loosened.

[0061] Specifically, the solder strip clamping structure 3121 is a clamp, which can clamp or unlock the solder strip by changing the size of the clamping space of the clamp head. The solder strip traction mechanism 312 straightens the solder strip and moves the busbar solder strip segment after cutting to the preparation position. The traction drive system mainly plays a linear drive role, such as a linear drive device, such as a cylinder, an oil cylinder or an electric push rod. In one embodiment, please refer to Figure 4 The welding strip traction mechanism 312 also includes a traction drive system 3122 and a placement platform 3123. The traction drive system 3122 includes a traction linear guide rail 31221 extending in the left and right directions and a traction slide 31222 slidably mounted on the traction linear guide rail 31221. The placement platform 3123 includes a placement plate extending in the left and right directions. The placement plate is placed at the material preparation station. The upper end surface of the placement plate forms a receiving groove. The welding strip clamping structure 3121 is arranged at the upper end of the traction slide 31222. The solder strip clamping structure 3121 migrates the busbar solder strip segment into the accommodating groove. Through the traction action of the solder strip traction mechanism 312, it is convenient to cut the solder strip and transfer the formed busbar solder strip segment into place, thereby improving production efficiency and having a good effect. It should be noted that the traction drive system 3122 adopts the matching method of the traction linear guide 31221 and the traction slide 31222, which has high matching accuracy, facilitates the linear movement of the solder strip and the busbar solder strip segment, and improves the positioning accuracy of the solder strip and the busbar solder strip segment.

[0062] The solder strip cutting mechanism 313 is mainly used to cut the straightened solder strip into the busbar segments. In one embodiment, please refer to Figure 1 and Figure 4 The solder strip cutting mechanism 313 also includes a cutting structure 3131, and the cutting structure 3131 includes a cutting base 31311 and a cutting knife movably installed on the cutting base 31311 along the up and down directions. A cutting space is formed between the cutting knife and the cutting base 31311 for the solder strip to pass through. When the cutting knife moves downward, the solder strip is cut into the busbar solder strip segments. When the cutting knife moves upward, the cutting knife moves to the initial position to prepare for the next solder strip cutting, thereby facilitating the automatic cutting of the solder strip into the required busbar solder strip segments, thereby improving the efficiency of automated operations.

[0063] It should be noted that before cutting, the weld ribbon traction mechanism 312 needs to clamp the weld ribbon head pressed by the pressing structure 3113, and then pull the weld ribbon to a suitable length, and then the welding cutting mechanism performs the cutting operation. Finally, the weld ribbon traction mechanism 312 continues to pull the cut busbar weld ribbon segment to the preparation position.

[0064] In addition, it should be noted that the above-mentioned additional technical features regarding the solder strip storage mechanism 311, the solder strip traction mechanism 312 and the solder strip cutting mechanism 313 can be selected one by one or simultaneously.

[0065] In the horizontal plane, the busbar welding strip segment and the busbar welding lead of the solar cell string should be arranged vertically. When the number of the solar cell strings is large, if the angle between the busbar welding strip segment and the busbar welding lead of the solar cell string is not 90 degrees, the busbar welding strip segment cannot be welded to all the busbar welding leads at the same time. Therefore, it is necessary to adjust the angle of the busbar welding strip segment. The transfer component 32 is used to pick up the busbar welding strip segment at the material preparation station, adjust the horizontal angle of the busbar welding strip segment, and transfer the busbar welding strip segment to the busbar welding leads of multiple solar cell strings at the welding position. In one embodiment, please refer to Figure 1 and Figure 5The transfer assembly 32 includes a first transfer mounting seat 321, a second transfer mounting seat 322, an adsorption seat 323, a first transfer drive system 324, a second transfer drive system 325 and a third transfer drive system 326. The first transfer mounting seat 321 is movably mounted to the machine base 1 along the front-back direction, the second transfer mounting seat 322 is movably mounted on the first transfer mounting seat 321 along the up-down direction, the adsorption seat 323 is rotatably mounted on the second transfer mounting seat 322 along the up-down axis, the lower end of the adsorption seat 323 is used to adsorb the welding strip, and the first transfer drive system 324 is used to drive the first transfer mounting seat 321 to move, the second transfer drive system 325 is used to drive the second transfer mounting seat 322 to move, and the third transfer drive system 326 is used to drive the adsorption seat 323 to move. Through the mutual cooperation of the first transfer mounting seat 321, the second transfer mounting seat 322, the adsorption seat 323, the first transfer drive system 324, the second transfer drive system 325 and the third transfer drive system 326, the busbar segment can be transferred to a suitable position more accurately, with better effect.

[0066] The adsorption seat 323 mainly adsorbs the upper end surface of the busbar solder strip segment through negative pressure. In one embodiment, the adsorption seat 323 forms a negative pressure adsorption cavity extending to the left and right, and the lower end surface of the adsorption seat 323 is provided with a plurality of hollow adsorption columns, the upper ends of the adsorption columns are connected to the negative pressure adsorption cavity, and the lower ends of the plurality of adsorption columns are used to jointly adsorb the solder strip. Such a configuration facilitates the adsorption of the busbar solder strip segment by the adsorption seat 323, and has a better effect.

[0067] It should be noted that the first transfer mounting seat 321 and the second transfer mounting seat 322 are both linearly movable, and the adsorption seat 323 is rotationally movable. In the embodiment of the present invention, the specific structural forms of the first transfer drive system 324, the second transfer drive system 325 and the third transfer drive system 326 are not limited. For example, the first transfer drive system 324 and the second transfer drive system 325 can be linear drive devices, such as a cylinder, an oil cylinder, and an electric push rod, and the third transfer drive system 326 can be a structure with a rotating output shaft, such as a motor.

[0068] Specifically, in one embodiment, the first transfer drive system 324 includes a first transfer linear guide rail 3241 provided on the machine base 1 and extending in the front-to-back direction, and the first transfer mounting seat 321 is slidably mounted on the first transfer linear guide rail 3241. With such a configuration, the first transfer mounting seat 321 has a higher movable accuracy, which facilitates the precise transfer of the convergent welding strip segment and has a better effect.

[0069] In one embodiment, the second transfer drive system 325 includes a second transfer linear guide rail 3251 which is arranged on the first transfer mounting seat 321 and extends in the up and down directions. The second transfer mounting seat 322 is slidably mounted on the second transfer linear guide rail 3251. With such a configuration, the second transfer mounting seat 322 has a higher movement accuracy, which facilitates the precise transfer of the convergent welding strip segment and has a better effect.

[0070] In one embodiment, the third transfer drive system 326 includes an angle adjustment motor 3261 rotatably mounted on the second transfer mounting seat 322 along the up and down axis, and the output shaft of the angle adjustment motor 3261 is driven and connected to the upper end of the adsorption seat 323. The motor drive form is adopted to facilitate the overall electric drive of the busbar electromagnetic welding device 100, facilitate automatic control, and have a better effect. It should be noted that a deceleration structure is provided between the output shaft of the angle adjustment motor 3261 and the adsorption seat 323, which is not described in detail here.

[0071] In addition, it should be noted that the additional technical features of the first transfer drive system 324, the second transfer drive system 325 and the third transfer drive system 326 can be selected one by one or simultaneously.

[0072] Reference Figure 3 A guiding assembly 33 is arranged between the feeding assembly 31 and the transfer assembly 32, and the guiding assembly 33 includes two guiding wheel groups 331 arranged opposite to each other in the front-to-back direction, and a guiding space extending in the left-to-right direction is formed between the two guiding wheel groups 331, wherein the welding ribbon passes through the guiding space and is arranged parallel to the electromagnetic heating block 21. With such an arrangement, through the guiding effect of the guiding assembly 33, the angle between the welding ribbon conveyed from the feeding assembly 31 and the busbar welding lead of the solar cell string is 90 degrees.

[0073] In order to improve the versatility of the busbar electromagnetic welding device 100, at least one of the two guide wheel groups 331 has an active stroke moving toward the other guide wheel group 331. This arrangement allows welding strips of different sizes to pass through the guiding space, thereby improving the versatility of the busbar electromagnetic welding device 100.

[0074] See also Figure 1 and Figure 6A carrying platform 4 for carrying a plurality of solar cell strings is provided at the welding station. The busbar electromagnetic welding device 100 further comprises a photographing component 5 provided at the machine base 1. The photographing component 5 comprises a camera 51 correspondingly provided at the welding station and located above the carrying platform 4. The camera 51 is used to photograph the solar cell string at the welding station to obtain image data, which is used for the control processing device to adjust the conveying displacement of the busbar welding strip segment according to the image data, that is, the right-angle side of the solar cell string is calibrated and photographed by the photographing component 5, and the current coordinate position of the solar cell string is sent to the feeding and transferring component, so as to adjust the conveying displacement of the busbar welding strip segment for error compensation and precise positioning, which has a better effect.

[0075] In order to realize the automation of the busbar electromagnetic welding device 100, refer to Figure 7 The busbar electromagnetic welding device 100 also includes a conveying module 6 arranged on the machine base 1 and used to convey the solar cell string. The conveying module 6 includes a conveyor belt assembly 61. The conveyor belt assembly 61 has a conveying section a extending in the front-to-back direction. The conveying section a is on the conveying channel. The middle part of the conveying section a is recessed to form a groove extending in the left-right direction. The electromagnetic heating block 21 is arranged in the groove. In this way, the groove separates the conveying section a into a first conveying section a1 and a second conveying section a2. A plurality of solar cell strings are conveyed to the welding station through the first conveying section a1. The welding ends of the busbar welding leads of the plurality of solar cell strings are overlapped with the busbar section to be welded on the electromagnetic heating block 21 to complete the welding. The plurality of solar cell strings that have completed welding are conveyed to the collection station through the second conveying section a2, which is convenient for collecting the plurality of solar cell strings that have completed welding.

[0076] Reference Figure 7 The conveyor belt assembly 61 includes four groups of pulley groups 611 and a conveyor belt 612 arranged in sequence along the front-to-back direction. Each group of pulley groups 611 includes two pulleys 6111 arranged in sequence along the upper and lower directions and installed for rotation along the left and right directions. The conveyor belt 612 sequentially covers multiple pulleys 6111 to form the groove between the two middle groups of pulley groups 611 arranged in sequence along the front-to-back direction. With this arrangement, the structure is compact.

[0077] Furthermore, the two middle pulley groups 611 have movable travels in the front-rear direction. With such a configuration, the position of the electromagnetic heating block 21 can be adjusted by adjusting the position of the groove in the front-rear direction, and the versatility is good.

[0078] In order to facilitate adjustment, the two middle pulley groups 611 are arranged in one piece, so that the two middle pulley groups 611 can be moved at the same time, thereby improving the position adjustment efficiency.

[0079] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A busbar electromagnetic welding device for a solar cell welding machine, characterized in that: The busbar electromagnetic welding device comprises: A machine base is formed with a conveying channel extending in a front-rear direction and a welding station located on the conveying path of the conveying channel; An electromagnetic welding module, comprising an electromagnetic heating block extending in the left and right directions, wherein the electromagnetic heating block is arranged on the machine base and correspondingly located at the welding station; and A material feeding and transferring assembly is arranged on the machine base; Wherein, a plurality of solar cell strings arranged at intervals in the front-to-back direction are transported to the welding station along the transport channel, and the welding ends of the busbar welding leads of the plurality of solar cell strings are placed on the electromagnetic heating block; The feeding and transferring assembly is used to feed the busbar welding strip segment to be welded to the electromagnetic heating block, and overlap the busbar welding lead on the electromagnetic heating block; The machine base is also formed with a material preparation station, and the material preparation station and the welding station are arranged in a forward and backward direction with intervals; The feeding and transferring assembly comprises: A material feeding assembly, the material feeding assembly is used to straighten the solder strip in the left-right direction, cut the solder strip into the busbar solder strip segments, and transfer the busbar solder strip segments to the material preparation station; and A transfer assembly, used to pick up the busbar ribbon segment at the material preparation station, adjust the horizontal angle of the busbar ribbon segment, and transfer the busbar ribbon segment to the busbar welding leads of the plurality of solar cell strings at the welding station; A guiding assembly is arranged between the feeding assembly and the transfer assembly, the guiding assembly comprising two guiding wheel groups arranged opposite to each other in the front-rear direction, a guiding space extending in the left-right direction is formed between the two guiding wheel groups, wherein the welding strip passes through the guiding space and is arranged in parallel with the electromagnetic heating block; At least one of the two guide wheel assemblies has a movable stroke for moving toward the other guide wheel assembly; The feeding assembly comprises: The welding tape storage mechanism comprises a welding tape storage barrel rotatably mounted on the machine base, and the welding tape is wound on the welding tape storage barrel; a welding ribbon pulling mechanism, located on the left side of the welding ribbon storage mechanism, the welding ribbon pulling mechanism comprising a welding ribbon clamping structure movably mounted on the machine base in the left-right direction, for clamping the welding ribbon released from the welding ribbon storage barrel and straightening the welding ribbon; and, A welding ribbon cutting mechanism, disposed between the welding ribbon storage mechanism and the welding ribbon pulling mechanism, for cutting the straightened welding ribbon into the converged welding ribbon segments; After the welding ribbon cutting mechanism completes cutting, the welding ribbon pulling mechanism continues to pull the converged welding ribbon segment to the material preparation station.

2. The busbar electromagnetic welding device according to claim 1, characterized in that: The solder strip storage barrel is rotatably mounted on the machine base along an axis extending in a front-rear direction, and the solder strip storage mechanism further comprises a solder strip preparation guide structure and a holding structure, wherein a guide path is formed on the solder strip preparation guide structure for guiding and releasing the solder strip wound on the solder strip storage barrel, and the holding structure is arranged on the right side of the solder strip cutting mechanism for holding the solder strip passing through the guide path; and / or, The welding ribbon traction mechanism also includes a traction drive system and a placement platform, the traction drive system includes a traction linear guide rail extending in the left and right directions and a traction slide slidably mounted on the traction linear guide rail, the placement platform includes a placement plate extending in the left and right directions, the placement plate is placed at the material preparation station, and an accommodating groove is formed on the upper end surface of the placement plate, wherein the welding ribbon clamping structure is arranged at the upper end of the traction slide, and the welding ribbon clamping structure migrates the busbar welding ribbon segment into the accommodating groove; and / or, The welding strip cutting mechanism also includes a cutting structure, which includes a cutting base and a cutting knife movably installed on the cutting base along the up and down directions. A cutting space is formed between the cutting knife and the cutting base, and the cutting space is used for the welding strip to pass through.

3. The busbar electromagnetic welding device according to claim 1, characterized in that: The transfer assembly comprises: A first transfer mounting seat, movably mounted to the machine base in a front-rear direction; A second transfer mounting seat, movably mounted on the first transfer mounting seat in an up-and-down direction; An adsorption seat is rotatably mounted on the second transfer mounting seat along an up-down axis, and the lower end of the adsorption seat is used to adsorb the welding strip; A first transfer drive system, used to drive the first transfer mounting seat to move; A second transfer drive system is used to drive the second transfer mounting seat to move; and The third transfer driving system is used to drive the adsorption seat to move.

4. The busbar electromagnetic welding device according to claim 3, characterized in that: The first transfer drive system comprises a first transfer linear guide rail provided on the machine base and extending in the front-rear direction, and the first transfer mounting seat is slidably mounted on the first transfer linear guide rail; and / or, The second transfer drive system comprises a second transfer linear guide rail which is arranged on the first transfer mounting seat and extends in the vertical direction, and the second transfer mounting seat is slidably mounted on the second transfer linear guide rail; and / or, The third transfer drive system includes an angle adjustment motor rotatably mounted on the second transfer mounting seat along an up-down axis, and an output shaft of the angle adjustment motor is drivingly connected to the upper end of the adsorption seat.

5. The busbar electromagnetic welding device according to claim 1, characterized in that: The welding station is provided with a supporting platform for supporting a plurality of solar cell strings; The busbar electromagnetic welding device also includes a photographing component arranged on the machine base, and the photographing component includes a camera corresponding to the welding station and located above the supporting platform. The camera is used to photograph the solar cell string at the welding station to obtain image data, which is used for the control processing device to adjust the conveying displacement of the busbar welding strip segment according to the image data.

6. The busbar electromagnetic welding device according to claim 1, characterized in that: The busbar electromagnetic welding device also includes a conveying component arranged on the machine base and used to convey the solar cell string. The conveying component includes a conveyor belt component. The conveyor belt component has a conveying section extending in the front-to-back direction. The conveying section is located on the conveying channel. The middle part of the conveying section is concave to form a groove extending in the left-to-right direction. The electromagnetic heating block is arranged in the groove.

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