Automatic gluing and bonding system and bonding method for solar cell module

Abstract

The invention provides an automatic gluing and bonding system and method for a space solar cell module. The automatic gluing and bonding system comprises a workbench, a dispensing device, a chip mounting device, a visual recognition device and a control system. The glue dispensing device comprises a glue dispensing mechanism, a glue dispensing support and a glue dispensing moving mechanism. The chip mounting device comprises a chip mounting mechanism, a chip mounting moving mechanism and a chip mounting bracket; the chip mounting mechanism comprises an adsorption platform, a rotating mechanism and a turnover mechanism. The gluing operation and the bonding operation of the solar cell module are integrated, repeated feeding, discharging and turnover are avoided, and the production efficiency is improved; by arranging the groups of suckers, each single battery is subjected to the same adsorption force and bonding pressure, so that the consistency of the product performance is ensured, and the product quality is improved; through the control system and the identification visual device, real-time adjustment of the target patch position of the solar cell module is realized, and the overall bonding precision is ensured; the automation degree is high.

Description

Technical Field

[0001] The invention belongs to the technical field of solar cell assembly bonding, and in particular relates to an automatic gluing bonding system and a bonding method for solar cell assembly. Background Art

[0002] Space solar arrays are the only energy source for most spacecraft in orbit and are key units in the spacecraft energy system. In the installation process of space solar arrays, the traditional bonding operation mainly involves screen printing and gluing all solar cell modules to be bonded in advance, and then manually marking the substrate according to the design drawings to determine the outer contour of each solar cell module and its relative position on the substrate, and finally bonding the solar cell module to the substrate. Although this method can complete the bonding of solar cell modules, it also has many shortcomings:

[0003] (1) Low production efficiency: Since the gluing and bonding operations of solar cell modules are completed independently at different workstations, it is necessary to repeatedly switch between different workstations, which prolongs the overall production time and reduces production efficiency;

[0004] (2) Product quality issues: The adsorption method of traditional solar cell modules makes it difficult to ensure that the adsorption force and bonding pressure on each single cell are uneven, resulting in the breakage of solar cell modules and inconsistent cell performance. In addition, solar cell modules are prone to deformation during the turnover process, which will have an adverse impact on the overall quality of the product.

[0005] (3) Low bonding accuracy: Manual bonding of solar cell modules is difficult to ensure highly accurate position control due to human factors, which can easily lead to bonding deviations and affect the final installation quality of the product;

[0006] (4) Difficult to adjust in real time: Due to the limitations of the solar cell module welding process and the deformation of the outer contour during the turnover process, the actual size of the solar cell module deviates from the design size on the drawing. The existing technology lacks a global solution for such situations and cannot adjust the bonding position of the solar cell module in a timely and effective manner. Summary of the invention

[0007] In order to solve the above technical problems, the present invention provides an automatic gluing and bonding system and bonding method for a positive battery assembly, which solves the problems of low production efficiency, low product quality and bonding accuracy, and difficulty in real-time adjustment in the prior art.

[0008] The technical solution adopted by the present invention is: an automatic gluing and bonding system for solar cell components, comprising:

[0009] A workbench for fixing the substrate;

[0010] A glue dispensing device, arranged on one side of the workbench, for performing glue coating operations on the solar cell modules;

[0011] The patch device is connected to the glue dispensing device in an aligned manner, and is used to drive the solar cell assembly before glue coating to move to the glue dispensing device for the glue coating operation, and drive the solar cell assembly after glue coating to move to the top of the substrate for flipping or rotating and flipping to perform bonding operation.

[0012] Furthermore, the dispensing device includes a dispensing mechanism, a dispensing bracket and a dispensing moving mechanism; the dispensing bracket is arranged on one side of the workbench, the dispensing moving mechanism is arranged on the dispensing bracket, the dispensing mechanism is connected to the dispensing moving mechanism, and the coating of the set glue type is completed under the action of the dispensing moving mechanism.

[0013] Furthermore, the glue dispensing movement mechanism includes a glue dispensing longitudinal movement device, a glue dispensing lateral movement device and a glue dispensing lifting device. The glue dispensing longitudinal movement device is connected to the glue dispensing bracket, the glue dispensing lateral movement device is connected to the glue dispensing longitudinal movement device, the glue dispensing lifting device is connected to the glue dispensing lateral movement device, and the glue dispensing mechanism is connected to the glue dispensing lifting device.

[0014] Furthermore, the patch device includes a patch mechanism, a patch moving mechanism and a patch bracket; the patch bracket is respectively arranged on opposite sides of the workbench, and the patch moving mechanism is connected to the patch bracket; the patch mechanism includes an adsorption platform, a rotating mechanism and a flipping mechanism, the flipping mechanism is connected to the patch moving mechanism, the rotating mechanism is connected to the flipping mechanism, the adsorption platform is connected to the rotating mechanism, and rotates, flips and moves under the action of the rotating mechanism, the flipping mechanism and the patch moving mechanism.

[0015] Furthermore, the patch moving mechanism includes a patch longitudinal moving device, a patch transverse moving device and a patch lifting device, the patch longitudinal moving device is connected to the patch bracket, the patch transverse moving device is connected to the patch longitudinal moving device, the patch lifting device is connected to the patch transverse moving device, and the flipping mechanism is connected to the patch lifting device.

[0016] Furthermore, the flipping mechanism includes a flipping motor, a flipping axis and a flipping platform. The flipping axis is arranged in the horizontal direction and connected to the driving end of the flipping motor, the flipping platform is connected to the flipping axis, the rotating mechanism is connected to the flipping platform, and the adsorption platform is parallel to the flipping platform and connected to the driving end of the rotating mechanism. It can rotate horizontally 360 degrees under the drive of the rotating mechanism and flip 180 degrees under the drive of the flipping mechanism.

[0017] Furthermore, the adsorption platform is provided with groups of suction cups, the spacing between the suction cups matches the specifications of the single cells, and can selectively generate adsorption force to match the single cells and solar cell modules of different specifications.

[0018] Furthermore, it also includes a visual recognition device, which is arranged on the adsorption platform and is used to identify the solar cell assembly and the relative position of the solar cell assembly and the substrate after bonding.

[0019] Furthermore, it also includes a control system, which is electrically connected to the dispensing device, the patch device and the visual recognition device respectively, and is preset with a relative position diagram of the solar cell module and the substrate and the corresponding glue type of the solar cell module.

[0020] A method for automatically gluing and bonding a solar cell module, using the automatic gluing and bonding system for solar cell modules as described above, comprises the following steps:

[0021] Importing the relative position diagram of the solar cell assembly and the substrate and the corresponding glue type of the solar cell assembly into the control system;

[0022] Run the patch moving mechanism to drive the adsorption platform to move to the loading station;

[0023] The turning mechanism is operated to turn the adsorption platform so that the suction cup faces upward;

[0024] Placing the solar cell assembly on the suction cup;

[0025] The visual recognition device recognizes the solar cell module, and the control system controls the suction cup to generate adsorption force and automatically matches the glue type and the target patch position;

[0026] The dispensing mechanism is operated to drive the dispensing mechanism to move above the solar cell assembly, and performs the dispensing operation according to the corresponding glue type;

[0027] Running the patch moving mechanism drives the solar cell assembly to move above the target patch position;

[0028] The rotating mechanism is operated to drive the solar cell assembly to rotate so that the solar cell assembly is in the same direction as the target patch position;

[0029] The flipping mechanism is operated to drive the solar cell assembly to flip 180 degrees;

[0030] Running the patch lifting device to bond the solar cell assembly to the substrate;

[0031] The visual recognition device recognizes the actual pasting position of the solar cell assembly and feeds back the information to the control system, and the control system automatically adjusts the target patch position of the next solar cell assembly.

[0032] The advantages and positive effects of the present invention are:

[0033] (1) By integrating the gluing and bonding operations of the solar cell module, the solar cell module is always fixed on the mounting device during the operation process, avoiding multiple loading, unloading and turnover. This not only improves the production efficiency, but also effectively avoids the deformation problem of the solar cell module during the turnover process, helps to improve the bonding accuracy and product quality, and solves the problems of low production efficiency and unstable product quality in the traditional solar cell module bonding method.

[0034] (2) By arranging suction cups in groups, the corresponding suction cups are selectively controlled to generate adsorption force according to the size of the single cell and the outer contour of the solar cell module to match the single cells and solar cell modules of different specifications, so that each single cell is subjected to the same adsorption force and bonding pressure, thereby ensuring the consistency of product performance and improving product quality.

[0035] (3) Through the control system and recognition visual device, the solar cell module can be accurately identified and the target patch position, as well as the angle offset and position offset during the movement, rotation and flipping process, can be accurately calculated, so that the actual pasting position of the solar cell module is as close as possible to the position designed in the drawing, and the target patch position of the subsequent solar cell module can be adjusted in real time to ensure the overall bonding accuracy; at the same time, the high degree of automation further improves the pasting efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a structural schematic diagram of a specific embodiment of the present invention;

[0037] Figure 2 It is a schematic diagram of the dispensing mechanism structure of a specific embodiment of the present invention;

[0038] Figure 3 is a schematic structural diagram of a patch device according to a specific embodiment of the present invention;

[0039] Figure 4 It is a schematic diagram of the structure of a patch mechanism of a specific embodiment of the present invention;

[0040] Figure 5 It is a schematic diagram of the bonding position of a solar cell module according to a specific embodiment of the present invention.

[0041] In the figure:

[0042] 1. Workbench;

[0043] 2. Glue dispensing device; 21. Glue dispensing bracket; 22. Glue dispensing moving mechanism; 221. Glue dispensing longitudinal moving device; 222. Glue dispensing transverse moving device; 223. Glue dispensing lifting device; 23. Glue dispensing mechanism; 231. Glue cylinder; 232. Glue dispensing tube;

[0044] 3. Patch device; 31. Patch bracket; 32. Patch moving mechanism; 321. Patch longitudinal moving device; 322. Patch transverse moving device; 323. Patch lifting device; 33. Patch mechanism; 331. Adsorption platform; 3311. Suction cup; 332. Rotation mechanism; 3321. Rotation motor; 3322. Rotation axis; 333. Flip mechanism; 3331. Flip motor; 3332. Flip axis; 3333. Flip platform;

[0045] 4. Visual recognition device;

[0046] 5. Solar cell module; 51. Single cell;

[0047] 6. Substrate. DETAILED DESCRIPTION

[0048] The embodiments of the present invention are described below with reference to the accompanying drawings.

[0049] like Figure 1 As shown, the present invention provides an automatic gluing and bonding system for solar cell modules, comprising a workbench 1, a glue dispensing device 2 and a patch device 3, wherein:

[0050] The workbench 1 is used to fix the substrate 6 to facilitate the subsequent bonding of the solar cell assembly 5;

[0051] The glue dispensing device 2 is disposed on one side of the workbench 1 and is used for performing glue coating operation on the solar cell module 5. The glue dispensing device 2 can coat the adhesive glue on the surface of the solar cell module 5 according to the set glue type.

[0052] The patch device 3 is connected to the glue dispensing device 2 in alignment, and is used to drive the solar cell assembly 5 before glue coating to move to the glue dispensing device 2 for glue coating, and to drive the solar cell assembly 5 after glue coating to move to the top of the substrate 6 for flipping or rotating and flipping for bonding.

[0053] In the present application, the position where the above-mentioned solar cell module 5 is subjected to the gluing operation is defined as the gluing station, and the above-mentioned patch device 3 and the glue dispensing device 2 cooperate with each other to complete the gluing operation after being aligned and connected at the gluing station; specifically, the solar cell module 5 is fixed on the patch device 3 with the adhesive surface facing upward, and the patch device 3 drives the solar cell module 5 to move to the gluing station; the glue dispensing device 2 also moves to the corresponding position of the gluing station, and applies adhesive glue on the adhesive surface of the solar cell module 5 according to the set glue type; then the patch device 3 drives the solar cell module 5 to move above the substrate 6, flips the solar cell module 5 so that its adhesive surface faces the substrate 6, and selectively drives the solar cell module 5 to rotate so that the orientation of the solar cell module 5 matches the target pasting position on the substrate 6, and finally drives the solar cell module 5 down to the target pasting position of the substrate 6 to complete the bonding operation.

[0054] Through the above technical scheme, the gluing operation and bonding operation of the solar cell module 5 are integrated, so that the solar cell module 5 is always fixed on the patch device 3 during the operation process, avoiding multiple loading, unloading and turnover, which not only improves the production efficiency, but also effectively avoids the deformation problem of the solar cell module 5 during the turnover process, which helps to improve the bonding accuracy and product quality.

[0055] In the present application, the solar cell assembly 5 can be loaded manually or automatically by a robot, and there is no limitation here; the position where the solar cell assembly 5 is loaded is defined as the loading station, which can coincide with the gluing station, or can be set at other positions convenient for loading as needed, and then the solar cell assembly 5 is driven to move to the gluing station for gluing by running the patch device 3.

[0056] The workbench 1 in the present application is a platform that can accommodate the substrate 6 to be laid flat and has an adsorption function.

[0057] like Figure 1 As shown, the above-mentioned dispensing device 2 includes a dispensing mechanism 23, a dispensing bracket 21 and a dispensing moving mechanism 22; wherein the dispensing bracket 21 is arranged on one side of the workbench 1, the dispensing moving mechanism 22 is arranged on the dispensing bracket 21, and the dispensing mechanism 23 is connected to the dispensing moving mechanism 22, and the coating of the set glue type is completed under the action of the dispensing moving mechanism 22.

[0058] Specifically, two glue dispensing brackets 21 are arranged at intervals and in parallel on one side of the workbench 1, and the gluing station is preferably arranged on the side close to the workbench 1; the glue dispensing moving mechanisms 22 are respectively connected to the upper part of the glue dispensing brackets 21, and can move along the length direction of the glue dispensing brackets 21 to approach or move away from the gluing station, and can also drive the glue dispensing mechanism 23 to rise and fall to a set height, and then further drive the glue dispensing mechanism 23 to move horizontally or vertically to complete the gluing operation of the set glue type; the set glue type can be L-shaped, H-shaped, Z-shaped or parallel straight lines, or other shapes, which can be selected according to actual needs, and no specific requirements are made here.

[0059] like Figure 2 As shown, the glue dispensing mechanism 23 in the present application includes a plurality of glue cylinders 231 and corresponding glue dispensing tubes 232. The glue cylinders 231 contain glue. When applying glue, the glue is squeezed out from the glue cylinder 231 and applied on the solar cell module 5 through the glue dispensing tubes 232; the plurality of glue dispensing tubes 232 cooperate with each other to perform the glue application operation, and the glue cylinders 231 are connected with a transverse movement device for adjusting the spacing between the glue barrels to achieve precise glue application on solar cell modules 5 of different specifications; the above-mentioned glue dispensing mechanism 23 can adopt any glue dispensing device 2 that can realize the above-mentioned function, and its specific structure is the prior art and will not be repeated here.

[0060] The above-mentioned glue dispensing moving mechanism 22 includes a glue dispensing longitudinal moving device 221, a glue dispensing transverse moving device 222 and a glue dispensing lifting device 223. The glue dispensing longitudinal moving device 221 is connected to the glue dispensing bracket 21, the glue dispensing transverse moving device 222 is connected to the glue dispensing longitudinal moving device 221, the glue dispensing lifting device 223 is connected to the glue dispensing transverse moving device 222, and the glue dispensing mechanism 23 is connected to the glue dispensing lifting device 223, so that the glue dispensing mechanism 23 can be lifted and moved under the drive of the glue dispensing lifting device 223, moved laterally under the drive of the glue dispensing transverse moving device 222, and moved longitudinally under the drive of the glue dispensing longitudinal moving device 221 to complete the coating of different glue types. Preferably, the glue dispensing lifting device 223 is a pneumatic track transmission, and the glue dispensing mechanism 23 is arranged on the glue dispensing seat, and the glue dispensing seat is fixedly mounted on the free end of the telescopic rod of the cylinder, so that the glue dispensing mechanism 23 moves up and down under the action of the cylinder and the track to approach or move away from the glue coating surface of the solar cell module 5.

[0061] The above-mentioned glue dispensing transverse moving device 222 can be a pneumatic guide rail, or a gear rack transmission, or other transverse moving devices, which can be selected according to actual needs. No specific requirements are made here. Preferably, the glue dispensing transverse moving device 222 adopts a gear rack transmission, including a transverse moving support, a transverse moving driving member and a transverse moving track. The driving end of the transverse moving driving member is provided with a gear, and the transverse moving track is provided with a toothed belt meshing with the gear. The glue dispensing lifting device 223 is fixed on the transverse moving support and moves laterally along the transverse moving track under the action of the transverse moving driving member.

[0062] Similarly, the glue dispensing longitudinal movement device 221 can be a pneumatic guide rail, or a gear rack transmission, or other longitudinal movement devices. Preferably, the glue dispensing longitudinal movement device 221 adopts a gear belt transmission, including a longitudinal movement support, a longitudinal movement drive and a longitudinal movement track. The longitudinal movement track is fixed to the glue dispensing bracket 21 along the length direction of the glue dispensing bracket 21, and the two ends of the longitudinal movement support are respectively slidably connected to the longitudinal movement track. The longitudinal movement drive is arranged on the longitudinal movement support and has two opposite driving ends, each driving end is connected to a gear, and the glue dispensing bracket 21 is also provided with a toothed belt meshing with the gear, so that the longitudinal movement support can move along the length direction of the glue dispensing bracket 21 under the action of the drive member; in this embodiment, the transverse movement track is fixed on the longitudinal movement support, so that the glue dispensing mechanism 23 can move laterally and longitudinally under the action of the transverse movement drive member and the longitudinal movement drive member, and complete the coating of the set glue type on the glue coating surface of the solar cell module 5.

[0063] like Figure 3 As shown, the patch device 3 includes a patch mechanism 33, a patch moving mechanism 32 and a patch bracket 31; wherein,

[0064] The patch bracket 31 is used to install the patch moving mechanism 32, so that the patch moving mechanism 32 can move within the entire area of ​​the substrate 6; the two patch brackets 31 are respectively arranged on the opposite sides of the workbench 1, and the length direction of the patch bracket 31 is the same as the length direction of the glue dispensing bracket 21, so that the patch device 3 can be connected to the glue dispensing device 2 in an aligned manner, and cooperate to complete the glue coating operation at the glue coating station; the length of the patch bracket 31 is preferably not less than the corresponding length of the workbench 1, and the distance between the two patch brackets 31 is greater than the corresponding width of the workbench 1.

[0065] The patch moving mechanism 32 is connected to the patch bracket 31 and is used to drive the patch mechanism 33 to move up and down, horizontally and vertically, so that the patch mechanism 33 can reach any target patch position on the substrate 6.

[0066] like Figure 4As shown, the patch mechanism 33 includes an adsorption platform 331, a rotating mechanism 332 and a flipping mechanism 333, wherein the flipping mechanism 333 is connected to the patch moving mechanism 32 and can be flipped relative to the patch moving mechanism 32 to adjust the orientation of the bonding surface of the solar cell module 5 to match different operation requirements. Specifically, when loading and gluing operations are performed, the bonding surface is directed upward; when the patch operation is performed, the bonding surface is directed downward; the rotating mechanism 332 is connected to the flipping mechanism 333 and can be rotated relative to the flipping mechanism 333 to adjust the orientation of the solar cell module 5 to match the orientation of the target patch position on the substrate 6; the adsorption platform 331 is connected to the rotating mechanism 332 to adsorb and fix the solar cell module 5; the adsorption platform 331 drives the solar cell module 5 to rotate, flip and move under the action of the rotating mechanism 332, the flipping mechanism 333 and the patch moving mechanism 32 to facilitate loading, gluing and patch operations.

[0067] The above-mentioned patch moving mechanism 32 includes a patch longitudinal moving device 321, a patch transverse moving device 322 and a patch lifting device 323. The patch longitudinal moving device 321 is connected to the patch bracket 31, the patch transverse moving device 322 is connected to the patch longitudinal moving device 321, the patch lifting device 323 is connected to the patch transverse moving device 322, and the flipping mechanism 333 is connected to the patch lifting device 323, so that the flipping mechanism 333 can move to the patch longitudinal moving device 321, the patch transverse moving device 322 and the patch lifting device 323 to perform glue dispensing operations, or move to the target patch position of the substrate 6 for patch operations.

[0068] The specific structures of the patch longitudinal moving device 321, the patch transverse moving device 322 and the patch lifting device 323 are respectively the same as the dispensing longitudinal moving device 221, the dispensing transverse moving device 222 and the dispensing lifting device 223, and can adopt pneumatic guide rails, or gear rack transmission, or other moving devices. Preferably, the patch longitudinal moving device 321 and the patch transverse moving device 322 adopt gear rack transmission, and the patch lifting device 323 adopts cylinder guide rail transmission, and its specific structure is not repeated here.

[0069] It can be understood that the moving range required for the glue dispensing mechanism 23 to perform the glue coating operation matches the area of ​​the solar cell module 5, and the moving range required for the patch mechanism 33 to perform the patch operation matches the area of ​​the substrate 6, and the area of ​​the substrate 6 is much larger than the area between the solar cells. Therefore, the distance between the glue dispensing brackets 21 and the length of the glue dispensing brackets 21 are both smaller than the distance between the patch brackets 31 and the length between the patch brackets 31; in a specific embodiment, the center line of the two glue dispensing brackets 21 coincides with the center line of the patch bracket 31, and the two are adjacent in the length direction to reduce the overall occupied space; the glue coating station is arranged on the center line and is close to the corresponding end positions of the glue dispensing bracket 21 and the patch bracket 31 respectively; when performing the glue coating operation, the bonding surface of the solar cell module 5 is fixed on the adsorption platform 331 facing upward, and the glue dispensing mechanism 23 can move to the top of the solar cell module 5 and perform translation in any direction within the area of ​​the solar cell module 5.

[0070] like Figure 4 As shown, the flip mechanism 333 is used to adjust the bonding surface orientation of the solar cell assembly 5, including a flip motor 3331, a flip shaft 3332 and a flip platform 3333, the flip shaft 3332 is arranged in the horizontal direction and connected to the driving end of the flip motor 3331, and the flip platform 3333 is connected to the flip shaft 3332, so that the flip platform 3333 can flip 180 degrees under the action of the flip motor 3331; the rotating mechanism 332 is connected to the flip platform 3333, including a rotating motor 3321 and a rotating shaft 3322, and the rotating shaft 3322 is arranged in the vertical direction; the adsorption platform 33 1 is parallel to the flip platform 3333 and connected to the driving end of the rotating mechanism 332, that is, the free end of the rotating shaft 3322, and can be horizontally rotated 360 degrees under the drive of the rotating mechanism 332; through the action of the flip mechanism 333, the bonding surface of the solar cell assembly 5 on the adsorption platform 331 can be flipped 180 degrees from facing upward to facing downward; through the action of the rotating mechanism 332, the solar cell assembly 5 can be rotated at any angle so that its length and width directions can match the length and width directions of the target patch position of the substrate 6, so as to facilitate subsequent precise pasting at the target patch position.

[0071] The solar cell module 5 is usually welded from a number of single cells 51 and fixed by adsorption through an adsorption platform 331; the adsorption platform 331 is provided with a group of suction cups 3311 facing the side away from the flip platform 3333, and each suction cup 3311 can be independently controlled to generate adsorption force to adsorb and fix the single cell 51; the spacing between the suction cups 3311 matches the specifications of the single cell 51, so that each single cell 51 is adsorbed and fixed by at least one suction cup 3311; at the same time, according to the size of the single cell 51 and the outer contour of the solar cell module 5, the corresponding suction cups 3311 can be selectively controlled to generate adsorption force to match the single cells 51 and solar cell modules 5 of different specifications. The area formed by the group of suction cups 3311 in the present application is designed according to the maximum specification of the solar cell module 5 commonly used in the prior art, and can adsorb and fix solar cell modules 5 of various specifications.

[0072] In a specific embodiment, the adsorption platform 331 in the present application is provided with a group of 350 suction cups 3311, and the adsorption surface size of each suction cup 3311 is 123 mm. 2 The distance between two adjacent suction cups 3311 in the length direction is 40mm, and the distance in the width direction is 60mm. The outer contour size of the group of suction cups 3311 is 1024mm×296mm, which can adsorb and fix the solar cell module 5 with a maximum specification of 6 parallels and 25 strings; when in use, the suction cups 3311 corresponding to the position of the single battery 51 are controlled to generate adsorption force, and the suction cups 3311 corresponding to the position without the single battery 51 are controlled not to generate adsorption force. Each single battery 51 is adsorbed at the set position by a set number of suction cups 3311, and the adsorption force is consistent, which is conducive to ensuring that the single battery 51 will not be damaged by the adsorption force. It can also ensure that the pressure on each single battery 51 is consistent during the bonding operation, ensuring the consistency of product performance.

[0073] The present application also includes a visual recognition device 4, which is arranged on the adsorption platform 331 and is used to identify the relative position of the solar cell module 5 and the bonded solar cell module 5 and the substrate 6. Specifically, before the patch operation, the visual recognition device 4 can identify the specifications of the single cell 51 of the solar cell module 5 and the external contour of the solar cell module 5, and provide a reliable basis for controlling the suction cup 3311 to produce a matching adsorption force, glue type, target patch position, and rotation angle of the rotating mechanism 332; after the operation is completed, by identifying the relative position of the solar cell module 5 and the substrate 6, the patch operation is controlled to continue, pause, or provide a basis for adjusting the patch position of the next solar cell module 5.

[0074] Specifically, Figure 5As shown, each solar cell module 5 is bonded to a different position of the substrate 6 on the design drawing, and there is a specified spacing between two adjacent solar cell modules 5. When the size deviation is caused by deformation or processing of the solar cell module 5, the spacing between adjacent modules may exceed the allowable deviation value or even cause lamination. The present application sets a visual recognition device 4. When it is recognized that there is a deviation between the actual bonding position of the solar cell module 5 and the target patch position and the deviation exceeds the allowable value, the patch operation can be controlled to be suspended according to a preset program to adjust the bonding position of the solar cell module 5 to meet the design requirements; or when the actual bonding position deviation of the solar cell module 5 is within the allowable deviation range, the target patch position of the next solar cell module 5 is adjusted, and the actual bonding position of the subsequent solar cell module 5 is adjusted in real time and dynamically to meet the use requirements, thereby effectively avoiding the lamination of adjacent solar cell modules 5.

[0075] The present application also includes a control system, which is electrically connected to the glue dispensing device 2, the patch device 3 and the visual recognition device 4, and is preset with a relative position diagram of the solar cell module 5 and the substrate 6 and the corresponding glue type of the solar cell module 5. The control system is a programmable controller with an edited program inside, which can be a PLC controller, or a CPU, or other programmable controllers, which are selected according to actual needs, and no specific requirements are made here; the control system can control the glue dispensing device 2 to perform glue application, control the patch device 3 to perform patch operation, and control the visual recognition device 4 to perform visual recognition, and dynamically adjust the target patch position of the solar cell module 5.

[0076] The present application also proposes a method for automatically gluing and bonding a solar cell module 5. The automatic gluing and bonding system for solar cell modules 5 proposed in the present application is used, and the working process includes the following steps:

[0077] S1, introducing the relative position diagram of the solar cell assembly 5 and the substrate 6, and the corresponding glue type of the solar cell assembly 5 into the control system;

[0078] Usually, the relative position diagram is a CAD diagram, and the control system can accurately calculate the specifications of each solar cell module 5, the coordinates of the target patch position and the spacing between adjacent solar cell modules 5 based on the drawing; the corresponding glue type of the solar cell module 5 can be set as needed, and can be set to the same glue type for all solar cell modules 5, or different glue types for different solar cell modules 5.

[0079] S2, operate the patch moving mechanism 32 to drive the adsorption platform 331 to move to the loading station;

[0080] Run the patch longitudinal movement device 321 to move the patch mechanism 33 along the length direction of the patch bracket 31 to the preset patch mechanism 33. At this time, the adsorption platform 331 is in an initial state, and the suction cup 3311 of the adsorption platform 331 faces downward in the initial state; in a specific embodiment, when the patch mechanism 33 moves to one end point of the moving range, its corresponding position is the loading station, and a limit device is provided at the end point to facilitate precise control of the loading station.

[0081] S3, operating the flipping mechanism 333 to drive the adsorption platform 331 to flip so that the suction cup 3311 faces upward;

[0082] When the patch mechanism 33 moves to the loading station, the control system controls the flip mechanism 333 to operate, driving the adsorption platform 331 to flip 180 degrees. At this time, the adsorption platform 331 is horizontal and the suction cup 3311 faces upward.

[0083] S4, placing the solar cell assembly 5 on the suction cup 3311;

[0084] When the flipping mechanism 333 completes the flipping, the control system issues a loading notification, and the staff places the solar cell module 5 to be pasted on the suction cup 3311, or the loading robot automatically loads the material after receiving the loading notification. During loading, the solar cell module 5 is placed in the middle of the contour range formed by the grouped suction cups 3311.

[0085] S5, the visual recognition device 4 recognizes the solar cell assembly 5, controls the corresponding suction cup 3311 to generate adsorption force, and automatically matches the glue type and the target patch position;

[0086] After the loading is completed, the visual recognition device 4 photographs the solar cell module 5 on the adsorption platform 331, and recognizes the outer contour of the solar cell module 5 and the composition of the single cells 51 that constitute the solar cell module 5 by a general image recognition method, and transmits the signal to the control system. The control system controls the corresponding suction cups 3311 to generate adsorption force according to the composition of the single cells 51, so that each single cell 51 is adsorbed and fixed by a set number of suction cups 3311, while other suction cups 3311 do not generate adsorption force; at the same time, the control system automatically matches the relative position of the solar cell module 5 and the substrate 6 according to the relative position diagram of the solar cell module 5 and the substrate 6, calculates the coordinates of the target patch position, and automatically matches the glue type corresponding to the solar cell module 5.

[0087] In this step, the visual recognition device 4 recognizes the outer contour of the solar cell module 5. When the length and width directions of the solar cell module 5 on the adsorption platform 331 are inconsistent with the length and width directions of the solar cell module 5 to be bonded at the target patch position, the control system calculates the angular offset of the solar cell module 5 and the position offset between the target patch position after rotation and flipping as the corrected coordinates of the target patch position of the solar cell module 5 in this case.

[0088] S6, operating the glue dispensing moving mechanism 22 to drive the glue dispensing mechanism 23 to move above the solar cell module 5, and performing glue dispensing operation according to the corresponding glue type;

[0089] In this embodiment, the loading station is the glue coating station; after the solar cell module 5 is adsorbed and fixed, the control system controls the operation of the glue dispensing moving mechanism 22, specifically including operating the glue dispensing longitudinal movement device 221, driving the glue dispensing mechanism 23 to move close to the solar cell module 5, and operating the glue dispensing lifting device 223 to make the glue dispensing tube 232 of the glue dispensing mechanism 23 contact the bonding surface of the solar cell module 5; then, the glue dispensing longitudinal movement device 221, the glue dispensing transverse movement device 222 and the glue dispensing lifting device 223 cooperate to apply glue on the bonding surface according to the set glue type.

[0090] S7, operating the patch moving mechanism 32 to drive the solar cell assembly 5 to move above the target patch position;

[0091] After the gluing operation is completed, the control system controls the operation of the patch moving mechanism 32 according to the calculated coordinates of the target patch position, and transfers the solar cell module 5 to the top of the target patch position on the substrate 6 through the alternating operation of the patch longitudinal movement device 321 and the patch transverse movement device 322. The position corresponding to the moved solar cell module 5 is the corrected position after considering the angle offset and position offset.

[0092] S8, operating the rotating mechanism 332 to drive the solar cell assembly 5 to rotate so that the direction is consistent with the target patch position;

[0093] When the length and width directions of the solar cell assembly 5 on the adsorption platform 331 are inconsistent with the length and width directions of the solar cell assembly 5 to be bonded at the target patch position, the control system controls the rotating mechanism 332 to drive the solar cell assembly 5 to rotate a set angle to eliminate the angle deviation. At this time, the orientation of the solar cell assembly 5 is consistent with the orientation of the target patch position.

[0094] It is understandable that when the length and width directions of the solar cell assembly 5 on the adsorption platform 331 are consistent with the length and width directions of the solar cell assembly 5 to be bonded at the target patch position, the rotation operation in this step is not required.

[0095] S9, operating the flipping mechanism 333 to drive the solar cell assembly 5 to flip 180 degrees;

[0096] After the solar cell assembly 5 has completed its rotation, the control system controls the flipping mechanism 333 to drive the solar cell assembly 5 to flip. At this time, the bonding surface of the solar cell assembly 5 changes from facing upward to facing the substrate 6 downward, and the position of the solar cell assembly 5 corresponds to the target patch position.

[0097] S10, operating the patch lifting device 323 to bond the solar cell assembly 5 to the substrate 6;

[0098] After the flipping is completed, the control system controls the patch lifting device 323 to move downward, so that the solar cell module 5 falls to the target patch position, and at the same time pressurizes the solar cell module 5. After maintaining for a certain period of time, the suction cup 3311 is controlled to eliminate the adsorption force, and the patch mechanism 33 is controlled to move upward to separate from the solar cell module 5.

[0099] S11 , the visual recognition device 4 recognizes the actual pasting position of the solar cell module 5 and feeds back the information to the control system, and the control system automatically adjusts the target pasting position of the next solar cell module 5 .

[0100] After the solar cell module 5 is bonded, the visual recognition device 4 photographs the solar cell module 5 again and feeds back the actual pasting position of the solar cell module 5 to the control system; the control system calculates the deviation between the coordinates of the actual pasting position of the solar cell module 5 and the coordinates of the target patch position, and compares it with the allowable deviation value. When it exceeds the allowable value, an operation pause signal is issued and the operator is notified; when the deviation is within the allowable deviation range, the next operation signal is issued, and the patch device 3 is controlled to return to the initial state in step 2, and steps 3-11 are repeated, and the target patch position of the next solar cell module 5 is calculated according to the outer contour of the next solar cell module 5 and the actual pasting position of the previous solar cell module 5, until the pasting of all solar cell modules 5 is completed.

[0101] In other embodiments of this step, the order of rotating and flipping the solar cell assembly 5 can be set as needed, and can also be set to flip the solar cell assembly 5 first and then rotate it.

[0102] The advantages and positive effects of the present invention are:

[0103] (1) By integrating the gluing and bonding operations of the solar cell module, the solar cell module is always fixed on the mounting device during the operation process, avoiding multiple loading, unloading and turnover. This not only improves the production efficiency, but also effectively avoids the deformation problem of the solar cell module during the turnover process, helps to improve the bonding accuracy and product quality, and solves the problems of low production efficiency and unstable product quality in the traditional solar cell module bonding method.

[0104] (2) By arranging suction cups in groups, the corresponding suction cups are selectively controlled to generate adsorption force according to the size of the single cell and the outer contour of the solar cell module to match the single cells and solar cell modules of different specifications, so that each single cell is subjected to the same adsorption force and bonding pressure, thereby ensuring the consistency of product performance and improving product quality.

[0105] (3) Through the control system and recognition visual device, the solar cell module can be accurately identified and the target patch position, as well as the angle offset and position offset during the movement, rotation and flipping process, can be accurately calculated, so that the actual pasting position of the solar cell module is as close as possible to the position designed in the drawing, and the target patch position of the subsequent solar cell module can be adjusted in real time to ensure the overall bonding accuracy; at the same time, the high degree of automation further improves the pasting efficiency.

[0106] The embodiments of the present invention are described in detail above, but the contents described are only preferred embodiments of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. An automatic gluing and bonding system for solar cell modules, characterized in that: include: A workbench for fixing the substrate; A glue dispensing device, arranged on one side of the workbench, for performing glue coating operations on the solar cell modules; The patch device is connected to the glue dispensing device in an aligned manner, and is used to drive the solar cell assembly before glue coating to move to the glue dispensing device for the glue coating operation, and drive the solar cell assembly after glue coating to move to the top of the substrate for flipping or rotating and flipping to perform bonding operation.

2. The automatic gluing and bonding system for solar cell modules according to claim 1, characterized in that: The glue dispensing device includes a glue dispensing mechanism, a glue dispensing bracket and a glue dispensing moving mechanism; the glue dispensing bracket is arranged on one side of the workbench, the glue dispensing moving mechanism is arranged on the glue dispensing bracket, the glue dispensing mechanism is connected to the glue dispensing moving mechanism, and the coating of the set glue type is completed under the action of the glue dispensing moving mechanism.

3. The automatic gluing and bonding system for solar cell modules according to claim 2 is characterized in that: The glue dispensing moving mechanism includes a glue dispensing longitudinal moving device, a glue dispensing lateral moving device and a glue dispensing lifting device. The glue dispensing longitudinal moving device is connected to the glue dispensing bracket, the glue dispensing lateral moving device is connected to the glue dispensing longitudinal moving device, the glue dispensing lifting device is connected to the glue dispensing lateral moving device, and the glue dispensing mechanism is connected to the glue dispensing lifting device.

4. The automatic gluing and bonding system for solar cell modules according to any one of claims 1 to 3, characterized in that: The patch device includes a patch mechanism, a patch moving mechanism and a patch bracket; the patch brackets are respectively arranged on opposite sides of the workbench, and the patch moving mechanism is connected to the patch bracket; the patch mechanism includes an adsorption platform, a rotating mechanism and a flipping mechanism, the flipping mechanism is connected to the patch moving mechanism, the rotating mechanism is connected to the flipping mechanism, the adsorption platform is connected to the rotating mechanism, and rotates, flips and moves under the action of the rotating mechanism, the flipping mechanism and the patch moving mechanism.

5. The automatic gluing and bonding system for solar cell modules according to claim 4 is characterized in that: The patch moving mechanism includes a patch longitudinal moving device, a patch transverse moving device and a patch lifting device, the patch longitudinal moving device is connected to the patch bracket, the patch transverse moving device is connected to the patch longitudinal moving device, the patch lifting device is connected to the patch transverse moving device, and the flipping mechanism is connected to the patch lifting device.

6. The solar cell module automatic gluing and bonding system according to claim 5, characterized in that: The flipping mechanism includes a flipping motor, a flipping shaft and a flipping platform. The flipping shaft is arranged in the horizontal direction and connected to the driving end of the flipping motor. The flipping platform is connected to the flipping shaft. The rotating mechanism is connected to the flipping platform. The adsorption platform is parallel to the flipping platform and connected to the driving end of the rotating mechanism. It can rotate horizontally 360 degrees under the drive of the rotating mechanism and flip 180 degrees under the drive of the flipping mechanism.

7. The automatic gluing and bonding system for solar cell modules according to claim 5 or 6, characterized in that: The adsorption platform is provided with groups of suction cups, the spacing between the suction cups matches the specifications of the single cells, and can selectively generate adsorption force to match the single cells and solar cell modules of different specifications.

8. The automatic gluing and bonding system for solar cell modules according to claim 1, 2, 3, 5 or 6, characterized in that: It also includes a visual recognition device, which is arranged on the adsorption platform and is used to identify the solar cell assembly and the relative position of the solar cell assembly and the substrate after bonding.

9. The solar cell module automatic gluing and bonding system according to claim 8, characterized in that: It also includes a control system, which is electrically connected to the dispensing device, the patch device and the visual recognition device respectively, and is preset with a relative position diagram of the solar cell assembly and the substrate and a corresponding glue type of the solar cell assembly.

10. A method for automatic gluing and bonding of solar cell modules, characterized in that: The solar cell module automatic gluing and bonding system according to any one of claims 1 to 9 comprises the following steps: Importing the relative position diagram of the solar cell assembly and the substrate and the corresponding glue type of the solar cell assembly into the control system; Run the patch moving mechanism to drive the adsorption platform to move to the loading station; The turning mechanism is operated to turn the adsorption platform so that the suction cup faces upward; Placing the solar cell assembly on the suction cup; The visual recognition device recognizes the solar cell module, and the control system controls the suction cup to generate adsorption force and automatically matches the glue type and the target patch position; The dispensing mechanism is operated to drive the dispensing mechanism to move above the solar cell assembly, and performs the dispensing operation according to the corresponding glue type; The patch moving mechanism is operated to drive the solar cell assembly to move above the target patch position; The rotating mechanism is operated to drive the solar cell assembly to rotate so that the solar cell assembly is in the same direction as the target patch position; The flipping mechanism is operated to cause the solar cell assembly to flip 180 degrees; Running the patch lifting device to bond the solar cell assembly to the substrate; The visual recognition device recognizes the actual pasting position of the solar cell assembly and feeds back the information to the control system, and the control system automatically adjusts the target patch position of the next solar cell assembly.

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